Adding upstream version 0.0.22.

Signed-off-by: Daniel Baumann <daniel@debian.org>

icann-rdap-common/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "icann-rdap-common"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+description = """
+Common RDAP data structures.
+"""
+
+[dependencies]
+chrono.workspace = true
+cidr.workspace = true
+const_format.workspace = true
+buildstructor.workspace = true
+idna.workspace = true
+ipnet.workspace = true
+prefix-trie.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+strum.workspace = true
+strum_macros.workspace = true
+thiserror.workspace = true
+
+[dev-dependencies]
+
+# fixture testings
+rstest = "0.17.0"

icann-rdap-common/README.md

@@ -0,0 +1,177 @@
+ICANN RDAP Common
+=================
+
+This is a common component library for the Registration Data Access Protocol (RDAP) written and sponsored
+by the Internet Corporation for Assigned Names and Numbers [(ICANN)](https://www.icann.org). 
+RDAP is standard of the [IETF](https://ietf.org/), and extensions
+to RDAP are a current work activity of the IETF's [REGEXT working group](https://datatracker.ietf.org/wg/regext/documents/).
+More information on ICANN's role in RDAP can be found [here](https://www.icann.org/rdap).
+General information on RDAP can be found [here](https://rdap.rcode3.com/).
+
+
+Installation
+------------
+
+Add the library to your Cargo.toml: `cargo add icann-rdap-common`.
+
+This library can be compiled for WASM targets.
+
+Usage
+-----
+
+Create some RDAP objects:
+
+```rust
+// create an entity
+use icann_rdap_common::response::Entity;
+let holder = Entity::builder().handle("foo-BAR").build();
+
+// create an RDAP domain
+use icann_rdap_common::response::Domain;
+let domain = Domain::builder().ldh_name("example.com").entity(holder.clone()).build();
+
+// create an IP network
+use icann_rdap_common::response::Network;
+let net = Network::builder().cidr("10.0.0.0/16").entity(holder.clone()).build().unwrap();
+
+// create a nameserver
+use icann_rdap_common::response::Nameserver;
+let ns = Nameserver::builder().ldh_name("ns1.example.com").entity(holder.clone()).build().unwrap();
+
+// create an autnum
+use icann_rdap_common::response::Autnum;
+let autnum = Autnum::builder().autnum_range(700..700).entity(holder).build();
+```
+
+Parse RDAP JSON:
+
+```rust
+use icann_rdap_common::prelude::*;
+
+let json = r#"
+  {
+    "objectClassName": "ip network",
+    "links": [
+      {
+        "value": "http://localhost:3000/rdap/ip/10.0.0.0/16",
+        "rel": "self",
+        "href": "http://localhost:3000/rdap/ip/10.0.0.0/16",
+        "type": "application/rdap+json"
+      }
+    ],
+    "events": [
+      {
+        "eventAction": "registration",
+        "eventDate": "2023-06-16T22:56:49.594173356+00:00"
+      },
+      {
+        "eventAction": "last changed",
+        "eventDate": "2023-06-16T22:56:49.594189140+00:00"
+      }
+    ],
+    "startAddress": "10.0.0.0",
+    "endAddress": "10.0.255.255",
+    "ipVersion": "v4"
+  }
+"#;
+
+let rdap: RdapResponse = serde_json::from_str(json).unwrap();
+assert!(matches!(rdap, RdapResponse::Network(_)));
+```
+
+RDAP uses jCard, the JSON version of vCard, to model "contact information"
+(e.g. postal addresses, phone numbers, etc...). Because jCard is difficult
+to use and there might be other contact models standardized by the IETF,
+this library includes the [`contact::Contact`] struct. This struct can be
+converted to and from jCard/vCard with the [`contact::Contact::from_vcard`]
+and [`contact::Contact::to_vcard`] functions.
+
+[`contact::Contact`] structs can be built using the builder.
+
+```rust
+use icann_rdap_common::contact::Contact;
+
+let contact = Contact::builder()
+  .kind("individual")
+  .full_name("Bob Smurd")
+  .build();
+```
+
+Once built, a Contact struct can be converted to an array of [serde_json::Value]'s,
+which can be used with serde to serialize to JSON.
+
+```rust
+use icann_rdap_common::contact::Contact;
+use serde::Serialize;
+use serde_json::Value;
+
+let contact = Contact::builder()
+  .kind("individual")
+  .full_name("Bob Smurd")
+  .build();
+
+let v = contact.to_vcard();
+let json = serde_json::to_string(&v);
+```
+
+To deserialize, use the `from_vcard` function.
+
+```rust
+use icann_rdap_common::contact::Contact;
+use serde::Deserialize;
+use serde_json::Value;
+
+let json = r#"
+[
+  "vcard",
+  [
+    ["version", {}, "text", "4.0"],
+    ["fn", {}, "text", "Joe User"],
+    ["kind", {}, "text", "individual"],
+    ["org", {
+      "type":"work"
+    }, "text", "Example"],
+    ["title", {}, "text", "Research Scientist"],
+    ["role", {}, "text", "Project Lead"],
+    ["adr",
+      { "type":"work" },
+      "text",
+      [
+        "",
+        "Suite 1234",
+        "4321 Rue Somewhere",
+        "Quebec",
+        "QC",
+        "G1V 2M2",
+        "Canada"
+      ]
+    ],
+    ["tel",
+      { "type":["work", "voice"], "pref":"1" },
+      "uri", "tel:+1-555-555-1234;ext=102"
+    ],
+    ["email",
+      { "type":"work" },
+      "text", "joe.user@example.com"
+    ]
+  ]
+]"#;
+
+let data: Vec<Value> = serde_json::from_str(json).unwrap();
+let contact = Contact::from_vcard(&data);
+```
+
+License
+-------
+
+Licensed under either of
+* Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT) at your option.
+
+Contribution
+------------
+
+Unless you explicitly state otherwise, any contribution, as defined in the Apache-2.0 license, 
+intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, 
+shall be dual licensed pursuant to the Apache License, Version 2.0 or the MIT License referenced 
+as above, at ICANN’s option, without any additional terms or conditions.

icann-rdap-common/src/check/autnum.rs

@@ -0,0 +1,192 @@
+use std::any::TypeId;
+
+use crate::response::autnum::Autnum;
+
+use super::{
+    string::StringCheck, Check, CheckParams, Checks, GetChecks, GetSubChecks, RdapStructure,
+};
+
+impl GetChecks for Autnum {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks = if params.do_subchecks {
+            let mut sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            sub_checks.append(
+                &mut self
+                    .object_common
+                    .get_sub_checks(params.from_parent(TypeId::of::<Self>())),
+            );
+            sub_checks
+        } else {
+            vec![]
+        };
+
+        let mut items = vec![];
+
+        if self.start_autnum.is_none() || self.end_autnum.is_none() {
+            items.push(Check::AutnumMissing.check_item())
+        }
+
+        if let Some(start_num) = &self.start_autnum.as_ref().and_then(|n| n.as_u32()) {
+            if let Some(end_num) = &self.end_autnum.as_ref().and_then(|n| n.as_u32()) {
+                if start_num > end_num {
+                    items.push(Check::AutnumEndBeforeStart.check_item())
+                }
+                if is_autnum_reserved(*start_num) || is_autnum_reserved(*end_num) {
+                    items.push(Check::AutnumReserved.check_item())
+                }
+                if is_autnum_documentation(*start_num) || is_autnum_documentation(*end_num) {
+                    items.push(Check::AutnumDocumentation.check_item())
+                }
+                if is_autnum_private_use(*start_num) || is_autnum_private_use(*end_num) {
+                    items.push(Check::AutnumPrivateUse.check_item())
+                }
+            }
+        }
+
+        if let Some(name) = &self.name {
+            if name.is_whitespace_or_empty() {
+                items.push(Check::NetworkOrAutnumNameIsEmpty.check_item())
+            }
+        }
+
+        if let Some(autnum_type) = &self.autnum_type {
+            if autnum_type.is_whitespace_or_empty() {
+                items.push(Check::NetworkOrAutnumTypeIsEmpty.check_item())
+            }
+        }
+
+        Checks {
+            rdap_struct: RdapStructure::Autnum,
+            items,
+            sub_checks,
+        }
+    }
+}
+
+/// Returns true if the autnum is reserved.
+pub fn is_autnum_reserved(autnum: u32) -> bool {
+    autnum == 0 || autnum == 65535 || autnum == 4294967295 || (65552..=131071).contains(&autnum)
+}
+
+/// Returns true if the autnum is for documentation.
+pub fn is_autnum_documentation(autnum: u32) -> bool {
+    (64496..=64511).contains(&autnum) || (65536..=65551).contains(&autnum)
+}
+
+/// Returns true if the autnum is private use.
+pub fn is_autnum_private_use(autnum: u32) -> bool {
+    (64512..=65534).contains(&autnum) || (4200000000..=4294967294).contains(&autnum)
+}
+
+#[cfg(test)]
+mod tests {
+
+    use rstest::rstest;
+
+    use crate::prelude::ToResponse;
+
+    use crate::{
+        check::{Check, CheckParams, GetChecks},
+        response::autnum::Autnum,
+    };
+
+    use super::*;
+
+    #[test]
+    fn check_autnum_with_empty_name() {
+        // GIVEN
+        let mut autnum = Autnum::builder().autnum_range(700..700).build();
+        autnum.name = Some("".to_string());
+        let rdap = autnum.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::NetworkOrAutnumNameIsEmpty));
+    }
+
+    #[test]
+    fn check_autnum_with_empty_type() {
+        // GIVEN
+        let mut autnum = Autnum::builder().autnum_range(700..700).build();
+        autnum.autnum_type = Some("".to_string());
+        let rdap = autnum.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::NetworkOrAutnumTypeIsEmpty));
+    }
+
+    #[rstest]
+    #[case(0, true)]
+    #[case(65535, true)]
+    #[case(65552, true)]
+    #[case(131071, true)]
+    #[case(4294967295, true)]
+    #[case(1, false)]
+    #[case(65534, false)]
+    #[case(65551, false)]
+    #[case(131072, false)]
+    #[case(4294967294, false)]
+    fn check_autnum_is_reserved(#[case] autnum: u32, #[case] expected: bool) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = is_autnum_reserved(autnum);
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case(64496, true)]
+    #[case(64511, true)]
+    #[case(65536, true)]
+    #[case(65551, true)]
+    #[case(64495, false)]
+    #[case(64512, false)]
+    #[case(65535, false)]
+    #[case(65552, false)]
+    fn check_autnum_is_documentation(#[case] autnum: u32, #[case] expected: bool) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = is_autnum_documentation(autnum);
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case(64512, true)]
+    #[case(65534, true)]
+    #[case(4200000000, true)]
+    #[case(4294967294, true)]
+    #[case(65534, true)]
+    #[case(64511, false)]
+    #[case(65535, false)]
+    #[case(4199999999, false)]
+    #[case(4294967295, false)]
+    fn check_autnum_is_private_use(#[case] autnum: u32, #[case] expected: bool) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = is_autnum_private_use(autnum);
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+}

icann-rdap-common/src/check/domain.rs

@@ -0,0 +1,648 @@
+use std::any::TypeId;
+
+use crate::response::domain::{Domain, SecureDns};
+
+use super::{string::StringCheck, Check, CheckParams, Checks, GetChecks, GetSubChecks};
+
+impl GetChecks for Domain {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks = if params.do_subchecks {
+            let mut sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            sub_checks.append(
+                &mut self
+                    .object_common
+                    .get_sub_checks(params.from_parent(TypeId::of::<Self>())),
+            );
+            if let Some(public_ids) = &self.public_ids {
+                sub_checks.append(&mut public_ids.get_sub_checks(params));
+            }
+            if let Some(secure_dns) = &self.secure_dns {
+                sub_checks.append(&mut secure_dns.get_sub_checks(params));
+            }
+            sub_checks
+        } else {
+            vec![]
+        };
+
+        let mut items = vec![];
+
+        // check variants
+        if let Some(variants) = &self.variants {
+            let empty_count = variants
+                .iter()
+                .filter(|v| {
+                    v.relations.is_none() && v.idn_table.is_none() && v.variant_names.is_none()
+                })
+                .count();
+            if empty_count != 0 {
+                items.push(Check::VariantEmptyDomain.check_item());
+            };
+        };
+
+        // check ldh
+        if let Some(ldh) = &self.ldh_name {
+            if !ldh.is_ldh_domain_name() {
+                items.push(Check::LdhNameInvalid.check_item());
+            }
+            let name = ldh.trim_end_matches('.');
+            if name.eq("example")
+                || name.ends_with(".example")
+                || name.eq("example.com")
+                || name.ends_with(".example.com")
+                || name.eq("example.net")
+                || name.ends_with(".example.net")
+                || name.eq("example.org")
+                || name.ends_with(".example.org")
+            {
+                items.push(Check::LdhNameDocumentation.check_item())
+            }
+
+            // if there is also a unicodeName
+            if let Some(unicode_name) = &self.unicode_name {
+                let expected = idna::domain_to_ascii(unicode_name);
+                if let Ok(expected) = expected {
+                    if !expected.eq_ignore_ascii_case(ldh) {
+                        items.push(Check::LdhNameDoesNotMatchUnicode.check_item())
+                    }
+                }
+            }
+        }
+
+        // check unicode_name
+        if let Some(unicode_name) = &self.unicode_name {
+            if !unicode_name.is_unicode_domain_name() {
+                items.push(Check::UnicodeNameInvalidDomain.check_item());
+            }
+            let expected = idna::domain_to_ascii(unicode_name);
+            if expected.is_err() {
+                items.push(Check::UnicodeNameInvalidUnicode.check_item());
+            }
+        }
+
+        Checks {
+            rdap_struct: super::RdapStructure::Domain,
+            items,
+            sub_checks,
+        }
+    }
+}
+
+impl GetSubChecks for SecureDns {
+    fn get_sub_checks(&self, _params: CheckParams) -> Vec<Checks> {
+        let mut sub_checks = Vec::new();
+        if let Some(delegation_signed) = &self.delegation_signed {
+            if delegation_signed.is_string() {
+                sub_checks.push(Checks {
+                    rdap_struct: super::RdapStructure::SecureDns,
+                    items: vec![Check::DelegationSignedIsString.check_item()],
+                    sub_checks: vec![],
+                });
+            }
+        }
+        if let Some(zone_signed) = &self.zone_signed {
+            if zone_signed.is_string() {
+                sub_checks.push(Checks {
+                    rdap_struct: super::RdapStructure::SecureDns,
+                    items: vec![Check::ZoneSignedIsString.check_item()],
+                    sub_checks: vec![],
+                });
+            }
+        }
+        if let Some(max_sig_life) = &self.max_sig_life {
+            if max_sig_life.is_string() {
+                sub_checks.push(Checks {
+                    rdap_struct: super::RdapStructure::SecureDns,
+                    items: vec![Check::MaxSigLifeIsString.check_item()],
+                    sub_checks: vec![],
+                });
+            }
+        }
+
+        if let Some(key_data) = &self.key_data {
+            for key_datum in key_data {
+                if let Some(alg) = &key_datum.algorithm {
+                    if alg.is_string() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::KeyDatumAlgorithmIsString.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                    if alg.as_u8().is_none() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::KeyDatumAlgorithmIsOutOfRange.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                }
+                if let Some(flags) = &key_datum.flags {
+                    if flags.is_string() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::KeyDatumFlagsIsString.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                    if flags.as_u16().is_none() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::KeyDatumFlagsIsOutOfRange.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                }
+                if let Some(protocol) = &key_datum.protocol {
+                    if protocol.is_string() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::KeyDatumProtocolIsString.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                    if protocol.as_u8().is_none() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::KeyDatumProtocolIsOutOfRange.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                }
+            }
+        }
+
+        if let Some(ds_data) = &self.ds_data {
+            for ds_datum in ds_data {
+                if let Some(alg) = &ds_datum.algorithm {
+                    if alg.is_string() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::DsDatumAlgorithmIsString.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                    if alg.as_u8().is_none() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::DsDatumAlgorithmIsOutOfRange.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                }
+                if let Some(key_tag) = &ds_datum.key_tag {
+                    if key_tag.is_string() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::DsDatumKeyTagIsString.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                    if key_tag.as_u32().is_none() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::DsDatumKeyTagIsOutOfRange.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                }
+                if let Some(digest_type) = &ds_datum.digest_type {
+                    if digest_type.is_string() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::DsDatumDigestTypeIsString.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                    if digest_type.as_u8().is_none() {
+                        sub_checks.push(Checks {
+                            rdap_struct: super::RdapStructure::SecureDns,
+                            items: vec![Check::DsDatumDigestTypeIsOutOfRange.check_item()],
+                            sub_checks: vec![],
+                        });
+                    }
+                }
+            }
+        }
+
+        sub_checks
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::any::TypeId;
+
+    use {
+        crate::{
+            check::{is_checked, is_checked_item, GetSubChecks},
+            prelude::ToResponse,
+            response::domain::{Domain, SecureDns},
+        },
+        rstest::rstest,
+    };
+
+    use crate::check::{Check, CheckParams, GetChecks};
+
+    #[rstest]
+    #[case("")]
+    #[case("  ")]
+    #[case("_.")]
+    fn test_check_for_bad_ldh(#[case] ldh: &str) {
+        // GIVEN
+        let domain = Domain::builder().ldh_name(ldh).build();
+        let rdap = domain.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(is_checked_item(Check::LdhNameInvalid, &checks));
+    }
+
+    #[rstest]
+    #[case("")]
+    #[case("  ")]
+    fn test_check_for_bad_unicode(#[case] unicode: &str) {
+        // GIVEN
+        let domain = Domain::idn().unicode_name(unicode).build();
+        let rdap = domain.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(is_checked_item(Check::UnicodeNameInvalidDomain, &checks));
+    }
+
+    #[test]
+    fn test_check_for_ldh_unicode_mismatch() {
+        // GIVEN
+        let domain = Domain::idn()
+            .unicode_name("foo.com")
+            .ldh_name("xn--foo.com")
+            .build();
+        let rdap = domain.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(is_checked_item(Check::LdhNameDoesNotMatchUnicode, &checks));
+    }
+
+    #[test]
+    fn test_delegation_signed_as_string() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "delegationSigned": "true"
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert_eq!(checks.len(), 1);
+        assert!(is_checked(Check::DelegationSignedIsString, &checks));
+    }
+
+    #[test]
+    fn test_delegation_signed_as_bool() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "delegationSigned": true
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert!(checks.is_empty());
+    }
+
+    #[test]
+    fn test_zone_signed_as_string() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "zoneSigned": "false"
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert_eq!(checks.len(), 1);
+        assert!(is_checked(Check::ZoneSignedIsString, &checks));
+    }
+
+    #[test]
+    fn test_zone_signed_as_bool() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "zoneSigned": true
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert!(checks.is_empty());
+    }
+
+    #[test]
+    fn test_max_sig_life_as_string() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "maxSigLife": "123"
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert_eq!(checks.len(), 1);
+        assert!(is_checked(Check::MaxSigLifeIsString, &checks));
+    }
+
+    #[test]
+    fn test_max_sig_life_as_number() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "maxSigLife": 123
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert!(checks.is_empty());
+    }
+
+    #[test]
+    fn test_key_data_attributes_as_string() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "keyData": [
+                    {
+                        "algorithm": "13",
+                        "flags": "13",
+                        "protocol": "13"
+                    }
+                ]
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert_eq!(checks.len(), 3);
+        assert!(is_checked(Check::KeyDatumAlgorithmIsString, &checks));
+        assert!(is_checked(Check::KeyDatumFlagsIsString, &checks));
+        assert!(is_checked(Check::KeyDatumProtocolIsString, &checks));
+    }
+
+    #[test]
+    fn test_key_data_attributes_as_number() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "keyData": [
+                    {
+                        "algorithm": 13,
+                        "flags": 13,
+                        "protocol": 13
+                    }
+                ]
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert!(checks.is_empty());
+    }
+
+    #[test]
+    fn test_key_data_attributes_out_of_range() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "keyData": [
+                    {
+                        "algorithm": 1300,
+                        "flags": 130000,
+                        "protocol": 1300
+                    }
+                ]
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert_eq!(checks.len(), 3);
+        assert!(is_checked(Check::KeyDatumAlgorithmIsOutOfRange, &checks));
+        assert!(is_checked(Check::KeyDatumFlagsIsOutOfRange, &checks));
+        assert!(is_checked(Check::KeyDatumProtocolIsOutOfRange, &checks));
+    }
+
+    #[test]
+    fn test_ds_data_attributes_as_string() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "dsData": [
+                    {
+                        "algorithm": "13",
+                        "keyTag": "13",
+                        "digestType": "13"
+                    }
+                ]
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert_eq!(checks.len(), 3);
+        assert!(is_checked(Check::DsDatumAlgorithmIsString, &checks));
+        assert!(is_checked(Check::DsDatumKeyTagIsString, &checks));
+        assert!(is_checked(Check::DsDatumDigestTypeIsString, &checks));
+    }
+
+    #[test]
+    fn test_ds_data_attributes_as_number() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "dsData": [
+                    {
+                        "algorithm": 13,
+                        "keyTag": 13,
+                        "digestType": 13
+                    }
+                ]
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert!(checks.is_empty());
+    }
+
+    #[test]
+    fn test_ds_data_attributes_out_of_range() {
+        // GIVEN
+        let secure_dns = serde_json::from_str::<SecureDns>(
+            r#"{
+                "dsData": [
+                    {
+                        "algorithm": 1300,
+                        "keyTag": 13000000000,
+                        "digestType": 1300
+                    }
+                ]
+            }"#,
+        )
+        .unwrap();
+
+        // WHEN
+        let checks = secure_dns.get_sub_checks(CheckParams {
+            do_subchecks: false,
+            root: &Domain::builder()
+                .ldh_name("example.com")
+                .build()
+                .to_response(),
+            parent_type: TypeId::of::<SecureDns>(),
+            allow_unreg_ext: false,
+        });
+
+        // THEN
+        assert_eq!(checks.len(), 3);
+        assert!(is_checked(Check::DsDatumAlgorithmIsOutOfRange, &checks));
+        assert!(is_checked(Check::DsDatumKeyTagIsOutOfRange, &checks));
+        assert!(is_checked(Check::DsDatumDigestTypeIsOutOfRange, &checks));
+    }
+}

icann-rdap-common/src/check/entity.rs

@@ -0,0 +1,71 @@
+use std::{any::TypeId, str::FromStr};
+
+use crate::{
+    contact::Contact,
+    response::entity::{Entity, EntityRole},
+};
+
+use super::{
+    string::{StringCheck, StringListCheck},
+    Check, CheckParams, Checks, GetChecks, GetSubChecks, RdapStructure,
+};
+
+impl GetChecks for Entity {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks = if params.do_subchecks {
+            let mut sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            sub_checks.append(
+                &mut self
+                    .object_common
+                    .get_sub_checks(params.from_parent(TypeId::of::<Self>())),
+            );
+            if let Some(public_ids) = &self.public_ids {
+                sub_checks.append(&mut public_ids.get_sub_checks(params));
+            }
+            sub_checks
+        } else {
+            vec![]
+        };
+
+        let mut items = vec![];
+
+        if let Some(roles) = &self.roles {
+            if roles.is_string() {
+                items.push(Check::RoleIsString.check_item());
+            }
+            let roles = roles.vec();
+            if roles.is_empty_or_any_empty_or_whitespace() {
+                items.push(Check::RoleIsEmpty.check_item());
+            } else {
+                for role in roles {
+                    let r = EntityRole::from_str(role);
+                    if r.is_err() {
+                        items.push(Check::UnknownRole.check_item());
+                    }
+                }
+            }
+        }
+
+        if let Some(vcard) = &self.vcard_array {
+            if let Some(contact) = Contact::from_vcard(vcard) {
+                if let Some(full_name) = contact.full_name {
+                    if full_name.is_whitespace_or_empty() {
+                        items.push(Check::VcardFnIsEmpty.check_item())
+                    }
+                } else {
+                    items.push(Check::VcardHasNoFn.check_item())
+                }
+            } else {
+                items.push(Check::VcardArrayIsEmpty.check_item())
+            }
+        }
+
+        Checks {
+            rdap_struct: RdapStructure::Entity,
+            items,
+            sub_checks,
+        }
+    }
+}

icann-rdap-common/src/check/error.rs

@@ -0,0 +1,23 @@
+use std::any::TypeId;
+
+use crate::response::error::Rfc9083Error;
+
+use super::{CheckParams, Checks, GetChecks, GetSubChecks};
+
+impl GetChecks for Rfc9083Error {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks = if params.do_subchecks {
+            let sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            sub_checks
+        } else {
+            vec![]
+        };
+        Checks {
+            rdap_struct: super::RdapStructure::Error,
+            items: vec![],
+            sub_checks,
+        }
+    }
+}

icann-rdap-common/src/check/help.rs

@@ -0,0 +1,23 @@
+use std::any::TypeId;
+
+use crate::response::help::Help;
+
+use super::{CheckParams, Checks, GetChecks, GetSubChecks};
+
+impl GetChecks for Help {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks = if params.do_subchecks {
+            let sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            sub_checks
+        } else {
+            vec![]
+        };
+        Checks {
+            rdap_struct: super::RdapStructure::Help,
+            items: vec![],
+            sub_checks,
+        }
+    }
+}

icann-rdap-common/src/check/httpdata.rs

@@ -0,0 +1,346 @@
+use crate::{httpdata::HttpData, media_types::RDAP_MEDIA_TYPE, response::types::ExtensionId};
+
+use super::{Check, Checks, GetChecks};
+
+impl GetChecks for HttpData {
+    fn get_checks(&self, params: crate::check::CheckParams) -> crate::check::Checks {
+        let mut items = vec![];
+
+        // RFC checks
+        if let Some(allow_origin) = &self.access_control_allow_origin {
+            if !allow_origin.eq("*") {
+                items.push(Check::CorsAllowOriginStarRecommended.check_item())
+            }
+        } else {
+            items.push(Check::CorsAllowOriginRecommended.check_item())
+        }
+        if self.access_control_allow_credentials.is_some() {
+            items.push(Check::CorsAllowCredentialsNotRecommended.check_item())
+        }
+        if let Some(content_type) = &self.content_type {
+            if !content_type.starts_with(RDAP_MEDIA_TYPE) {
+                items.push(Check::ContentTypeIsNotRdap.check_item());
+            }
+        } else {
+            items.push(Check::ContentTypeIsAbsent.check_item());
+        }
+
+        // checks for ICANN profile
+        if params
+            .root
+            .has_extension_id(ExtensionId::IcannRdapTechnicalImplementationGuide0)
+            || params
+                .root
+                .has_extension_id(ExtensionId::IcannRdapTechnicalImplementationGuide1)
+        {
+            if let Some(scheme) = &self.scheme {
+                if !scheme.eq_ignore_ascii_case("HTTPS") {
+                    items.push(Check::MustUseHttps.check_item());
+                }
+            } else {
+                items.push(Check::MustUseHttps.check_item());
+            }
+            if let Some(allow_origin) = &self.access_control_allow_origin {
+                if !allow_origin.eq("*") {
+                    items.push(Check::AllowOriginNotStar.check_item())
+                }
+            } else {
+                items.push(Check::AllowOriginNotStar.check_item())
+            }
+        }
+
+        Checks {
+            rdap_struct: super::RdapStructure::HttpData,
+            items,
+            sub_checks: vec![],
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::{
+        check::{Check, CheckParams, GetChecks},
+        httpdata::HttpData,
+        media_types::{JSON_MEDIA_TYPE, RDAP_MEDIA_TYPE},
+        prelude::{Common, ObjectCommon, ToResponse},
+        response::{domain::Domain, types::ExtensionId},
+    };
+
+    #[test]
+    fn check_not_rdap_media() {
+        // GIVEN an rdap response
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN httpdata with content type that is not RDAP media type
+        let http_data = HttpData::example().content_type(JSON_MEDIA_TYPE).build();
+
+        // WHEN checks are run
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN incorrect media type check is found
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::ContentTypeIsNotRdap));
+    }
+
+    #[test]
+    fn check_exactly_rdap_media() {
+        // GIVEN an rdap response
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN httpdata with content type that is not RDAP media type
+        let http_data = HttpData::example().content_type(RDAP_MEDIA_TYPE).build();
+
+        // WHEN checks are run
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN incorrect media type check is not found
+        assert!(!checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::ContentTypeIsNotRdap));
+    }
+
+    #[test]
+    fn check_rdap_media_with_charset_parameter() {
+        // GIVEN an rdap response
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN httpdata with content type that is not RDAP media type with charset parameter
+        let mt = format!("{RDAP_MEDIA_TYPE};charset=UTF-8");
+        let http_data = HttpData::example().content_type(mt).build();
+
+        // WHEN checks are run
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN incorrect media type check is not found
+        assert!(!checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::ContentTypeIsNotRdap));
+    }
+
+    #[test]
+    fn check_media_type_absent() {
+        // GIVEN an rdap response
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN httpdata no content type
+        let http_data = HttpData::example().build();
+
+        // WHEN checks are run
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN no media type check is found
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::ContentTypeIsAbsent));
+    }
+
+    #[test]
+    fn check_cors_header_with_tig() {
+        // GIVEN a response with gtld tig
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN a cors header with *
+        let http_data = HttpData::example().access_control_allow_origin("*").build();
+
+        // WHEN running checks
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN no check is given
+        assert!(!checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::AllowOriginNotStar));
+    }
+
+    #[test]
+    fn check_cors_header_with_foo_and_tig() {
+        // GIVEN a response with gtld tig extension
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN response with cors header of "foo" (not "*")
+        let http_data = HttpData::example()
+            .access_control_allow_origin("foo")
+            .build();
+
+        // WHEN running checks
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN the check is found
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::AllowOriginNotStar));
+    }
+
+    #[test]
+    fn check_no_cors_header_and_tig() {
+        // GIVEN domain response with gtld tig extension id
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN a response with no cors header
+        let http_data = HttpData::example().build();
+
+        // WHEN running checks
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN check for missing cors is found
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::AllowOriginNotStar));
+    }
+
+    #[test]
+    fn given_response_is_over_https_and_tig() {
+        // GIVEN response with gtld tig extension
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN response is over https
+        let http_data = HttpData::now().scheme("https").host("example.com").build();
+
+        // WHEN running checks
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN then check for must use https is not present
+        assert!(!checks.items.iter().any(|c| c.check == Check::MustUseHttps));
+    }
+
+    #[test]
+    fn response_over_htttp_and_tig() {
+        // GIVEN domain response with gtld tig extension
+        let domain = Domain {
+            common: Common::level0()
+                .extension(ExtensionId::IcannRdapTechnicalImplementationGuide0.to_extension())
+                .build(),
+            object_common: ObjectCommon::domain().build(),
+            ldh_name: Some("foo.example".to_string()),
+            unicode_name: None,
+            variants: None,
+            secure_dns: None,
+            nameservers: None,
+            public_ids: None,
+            network: None,
+        };
+        let rdap = domain.to_response();
+
+        // and GIVEN response is with http (not https)
+        let http_data = HttpData::now().scheme("http").host("example.com").build();
+
+        // WHEN running checks
+        let checks = http_data.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN check for must use https is found
+        assert!(checks.items.iter().any(|c| c.check == Check::MustUseHttps));
+    }
+}

icann-rdap-common/src/check/mod.rs

@@ -0,0 +1,754 @@
+//! Conformance checks of RDAP structures.
+
+use std::{any::TypeId, sync::LazyLock};
+
+use {
+    crate::response::RdapResponse,
+    serde::{Deserialize, Serialize},
+    strum::{EnumMessage, IntoEnumIterator},
+    strum_macros::{Display, EnumIter, EnumMessage, EnumString, FromRepr},
+};
+
+#[doc(inline)]
+pub use string::*;
+
+mod autnum;
+mod domain;
+mod entity;
+mod error;
+mod help;
+mod httpdata;
+mod nameserver;
+mod network;
+mod search;
+mod string;
+mod types;
+
+/// The max length of the check class string representations.
+pub static CHECK_CLASS_LEN: LazyLock<usize> = LazyLock::new(|| {
+    CheckClass::iter()
+        .max_by_key(|x| x.to_string().len())
+        .map_or(8, |x| x.to_string().len())
+});
+
+/// Describes the classes of checks.
+#[derive(
+    EnumIter,
+    EnumString,
+    Debug,
+    Display,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    Serialize,
+    Deserialize,
+    Clone,
+    Copy,
+)]
+#[strum(serialize_all = "snake_case")]
+#[serde(rename_all = "snake_case")]
+pub enum CheckClass {
+    /// Informational
+    ///
+    /// This class represents informational items.
+    #[strum(serialize = "Info")]
+    Informational,
+
+    /// Specification Note
+    ///
+    /// This class represents notes about the RDAP response with respect to
+    /// the various RDAP and RDAP related specifications.
+    #[strum(serialize = "SpecNote")]
+    SpecificationNote,
+
+    /// STD 95 Warnings
+    ///
+    /// This class represents warnings that may cause some clients to be unable
+    /// to conduct some operations.
+    #[strum(serialize = "StdWarn")]
+    StdWarning,
+
+    /// STD 95 Errors
+    ///
+    /// This class represetns errors in the RDAP with respect to STD 95.
+    #[strum(serialize = "StdErr")]
+    StdError,
+
+    /// Cidr0 Errors
+    ///
+    /// This class represents errors with respect to CIDR0.
+    #[strum(serialize = "Cidr0Err")]
+    Cidr0Error,
+
+    /// ICANN Profile Errors
+    ///
+    /// This class represents errors with respect to the gTLD RDAP profile.
+    #[strum(serialize = "IcannErr")]
+    IcannError,
+}
+
+/// Represents the name of an RDAP structure for which a check appears.
+///
+/// An RDAP data structure is not the same as a Rust struct in that RDAP
+/// data structures may consist of arrays and sometimes structured data
+/// within a string.
+#[derive(
+    Debug, Serialize, Deserialize, Clone, Copy, PartialEq, PartialOrd, Eq, Ord, Display, EnumString,
+)]
+#[strum(serialize_all = "snake_case")]
+#[serde(rename_all = "snake_case")]
+pub enum RdapStructure {
+    Autnum,
+    Cidr0,
+    Domain,
+    DomainSearchResults,
+    Entity,
+    EntitySearchResults,
+    Events,
+    Error,
+    Help,
+    Handle,
+    HttpData,
+    IpNetwork,
+    Link,
+    Links,
+    Nameserver,
+    NameserverSearchResults,
+    NoticeOrRemark,
+    Notices,
+    PublidIds,
+    Port43,
+    RdapConformance,
+    Redacted,
+    Remarks,
+    SecureDns,
+    Status,
+}
+
+/// Contains many [CheckItem] structures and sub checks.
+///
+/// Checks are found on object classes and structures defined in [RdapStructure].
+#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, PartialOrd, Eq, Ord)]
+pub struct Checks {
+    pub rdap_struct: RdapStructure,
+    pub items: Vec<CheckItem>,
+    pub sub_checks: Vec<Checks>,
+}
+
+impl Checks {
+    pub fn sub(&self, rdap_struct: RdapStructure) -> Option<&Self> {
+        self.sub_checks
+            .iter()
+            .find(|check| check.rdap_struct == rdap_struct)
+    }
+}
+
+/// A specific check item.
+#[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct CheckItem {
+    pub check_class: CheckClass,
+    pub check: Check,
+}
+
+impl std::fmt::Display for CheckItem {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!(
+            "{}:({:0>4}) {}",
+            self.check_class,
+            self.check as usize,
+            self.check
+                .get_message()
+                .unwrap_or("[Check has no description]"),
+        ))
+    }
+}
+
+/// Trait for an item that can get checks.
+pub trait GetChecks {
+    fn get_checks(&self, params: CheckParams) -> Checks;
+}
+
+/// Parameters for finding checks.
+#[derive(Clone, Copy)]
+pub struct CheckParams<'a> {
+    pub do_subchecks: bool,
+    pub root: &'a RdapResponse,
+    pub parent_type: TypeId,
+    pub allow_unreg_ext: bool,
+}
+
+impl CheckParams<'_> {
+    pub fn from_parent(&self, parent_type: TypeId) -> Self {
+        Self {
+            do_subchecks: self.do_subchecks,
+            root: self.root,
+            parent_type,
+            allow_unreg_ext: self.allow_unreg_ext,
+        }
+    }
+
+    pub fn for_rdap(rdap: &RdapResponse) -> CheckParams<'_> {
+        CheckParams {
+            do_subchecks: true,
+            root: rdap,
+            parent_type: rdap.get_type(),
+            allow_unreg_ext: false,
+        }
+    }
+}
+
+impl GetChecks for RdapResponse {
+    fn get_checks(&self, params: CheckParams) -> Checks {
+        match &self {
+            Self::Entity(e) => e.get_checks(params),
+            Self::Domain(d) => d.get_checks(params),
+            Self::Nameserver(n) => n.get_checks(params),
+            Self::Autnum(a) => a.get_checks(params),
+            Self::Network(n) => n.get_checks(params),
+            Self::DomainSearchResults(r) => r.get_checks(params),
+            Self::EntitySearchResults(r) => r.get_checks(params),
+            Self::NameserverSearchResults(r) => r.get_checks(params),
+            Self::ErrorResponse(e) => e.get_checks(params),
+            Self::Help(h) => h.get_checks(params),
+        }
+    }
+}
+
+/// Trait to get checks for structures below that of the object class.
+pub trait GetSubChecks {
+    fn get_sub_checks(&self, params: CheckParams) -> Vec<Checks>;
+}
+
+/// Traverse the checks, and return true if one is found.
+pub fn traverse_checks<F>(
+    checks: &Checks,
+    classes: &[CheckClass],
+    parent_tree: Option<String>,
+    f: &mut F,
+) -> bool
+where
+    F: FnMut(&str, &CheckItem),
+{
+    let mut found = false;
+    let struct_tree = format!(
+        "{}/{}",
+        parent_tree.unwrap_or_else(|| "[ROOT]".to_string()),
+        checks.rdap_struct
+    );
+    for item in &checks.items {
+        if classes.contains(&item.check_class) {
+            f(&struct_tree, item);
+            found = true;
+        }
+    }
+    for sub_checks in &checks.sub_checks {
+        if traverse_checks(sub_checks, classes, Some(struct_tree.clone()), f) {
+            found = true
+        }
+    }
+    found
+}
+
+/// Returns true if the check is in a check list
+pub fn is_checked(check: Check, checks: &[Checks]) -> bool {
+    checks.iter().any(|c| is_checked_item(check, c))
+}
+
+/// Returns true if the check is in a list of check items.
+pub fn is_checked_item(check: Check, checks: &Checks) -> bool {
+    checks.items.iter().any(|c| c.check == check)
+}
+
+/// The variant check types.
+#[derive(
+    Debug,
+    EnumMessage,
+    EnumString,
+    Display,
+    Serialize,
+    Deserialize,
+    PartialEq,
+    PartialOrd,
+    Eq,
+    Ord,
+    Clone,
+    Copy,
+    FromRepr,
+)]
+#[strum(serialize_all = "snake_case")]
+#[serde(rename_all = "snake_case")]
+pub enum Check {
+    // RDAP Conformance 100 - 199
+    #[strum(message = "RFC 9083 requires 'rdapConformance' on the root object.")]
+    RdapConformanceMissing = 100,
+    #[strum(message = "'rdapConformance' can only appear at the top of response.")]
+    RdapConformanceInvalidParent = 101,
+    #[strum(message = "declared extension may not be registered.")]
+    UnknownExtention = 102,
+
+    // Link 200 - 299
+    #[strum(message = "'value' property not found in Link structure as required by RFC 9083")]
+    LinkMissingValueProperty = 200,
+    #[strum(message = "'rel' property not found in Link structure as required by RFC 9083")]
+    LinkMissingRelProperty = 201,
+    #[strum(message = "ambiguous follow because related link has no 'type' property")]
+    LinkRelatedHasNoType = 202,
+    #[strum(message = "ambiguous follow because related link does not have RDAP media type")]
+    LinkRelatedIsNotRdap = 203,
+    #[strum(message = "self link has no 'type' property")]
+    LinkSelfHasNoType = 204,
+    #[strum(message = "self link does not have RDAP media type")]
+    LinkSelfIsNotRdap = 205,
+    #[strum(message = "RFC 9083 recommends self links for all object classes")]
+    LinkObjectClassHasNoSelf = 206,
+    #[strum(message = "'href' property not found in Link structure as required by RFC 9083")]
+    LinkMissingHrefProperty = 207,
+
+    // Domain Variant 300 - 399
+    #[strum(message = "empty domain variant is ambiguous")]
+    VariantEmptyDomain = 300,
+
+    // Event 400 - 499
+    #[strum(message = "event date is absent")]
+    EventDateIsAbsent = 400,
+    #[strum(message = "event date is not RFC 3339 compliant")]
+    EventDateIsNotRfc3339 = 401,
+    #[strum(message = "event action is absent")]
+    EventActionIsAbsent = 402,
+
+    // Notice Or Remark 500 - 599
+    #[strum(message = "RFC 9083 requires a description in a notice or remark")]
+    NoticeOrRemarkDescriptionIsAbsent = 500,
+    #[strum(message = "RFC 9083 requires a description to be an array of strings")]
+    NoticeOrRemarkDescriptionIsString = 501,
+
+    // Handle 600 - 699
+    #[strum(message = "handle appears to be empty or only whitespace")]
+    HandleIsEmpty = 600,
+
+    // Status 700 - 799
+    #[strum(message = "status appears to be empty or only whitespace")]
+    StatusIsEmpty = 700,
+
+    // Role 800 - 899
+    #[strum(message = "role appears to be empty or only whitespace")]
+    RoleIsEmpty = 800,
+    #[strum(message = "entity role may not be registered")]
+    UnknownRole = 801,
+    #[strum(message = "role is a string, not array of strings")]
+    RoleIsString = 802,
+
+    // LDH Name 900 - 999
+    #[strum(message = "ldhName does not appear to be an LDH name")]
+    LdhNameInvalid = 900,
+    #[strum(message = "Documentation domain name. See RFC 6761")]
+    LdhNameDocumentation = 901,
+    #[strum(message = "Unicode name does not match LDH")]
+    LdhNameDoesNotMatchUnicode = 902,
+
+    // Unicode Nmae 1000 - 1099
+    #[strum(message = "unicodeName does not appear to be a domain name")]
+    UnicodeNameInvalidDomain = 1000,
+    #[strum(message = "unicodeName does not appear to be valid Unicode")]
+    UnicodeNameInvalidUnicode = 1001,
+
+    // Network Or Autnum Name 1100 - 1199
+    #[strum(message = "name appears to be empty or only whitespace")]
+    NetworkOrAutnumNameIsEmpty = 1100,
+
+    // Network or Autnum Type 1200 - 1299
+    #[strum(message = "type appears to be empty or only whitespace")]
+    NetworkOrAutnumTypeIsEmpty = 1200,
+
+    // IP Address 1300 - 1399
+    #[strum(message = "start or end IP address is missing")]
+    IpAddressMissing = 1300,
+    #[strum(message = "IP address is malformed")]
+    IpAddressMalformed = 1301,
+    #[strum(message = "end IP address comes before start IP address")]
+    IpAddressEndBeforeStart = 1302,
+    #[strum(message = "IP version does not match IP address")]
+    IpAddressVersionMismatch = 1303,
+    #[strum(message = "IP version is malformed")]
+    IpAddressMalformedVersion = 1304,
+    #[strum(message = "IP address list is empty")]
+    IpAddressListIsEmpty = 1305,
+    #[strum(message = "\"This network.\" See RFC 791")]
+    IpAddressThisNetwork = 1306,
+    #[strum(message = "Private use. See RFC 1918")]
+    IpAddressPrivateUse = 1307,
+    #[strum(message = "Shared NAT network. See RFC 6598")]
+    IpAddressSharedNat = 1308,
+    #[strum(message = "Loopback network. See RFC 1122")]
+    IpAddressLoopback = 1309,
+    #[strum(message = "Link local network. See RFC 3927")]
+    IpAddressLinkLocal = 1310,
+    #[strum(message = "Unique local network. See RFC 8190")]
+    IpAddressUniqueLocal = 1311,
+    #[strum(message = "Documentation network. See RFC 5737")]
+    IpAddressDocumentationNet = 1312,
+    #[strum(message = "Reserved network. See RFC 1112")]
+    IpAddressReservedNet = 1313,
+    #[strum(message = "IP address array is a string.")]
+    IpAddressArrayIsString = 1314,
+
+    // Autnum 1400 - 1499
+    #[strum(message = "start or end autnum is missing")]
+    AutnumMissing = 1400,
+    #[strum(message = "end AS number comes before start AS number")]
+    AutnumEndBeforeStart = 1401,
+    #[strum(message = "Private use. See RFC 6996")]
+    AutnumPrivateUse = 1402,
+    #[strum(message = "Documentation AS number. See RFC 5398")]
+    AutnumDocumentation = 1403,
+    #[strum(message = "Reserved AS number. See RFC 6996")]
+    AutnumReserved = 1404,
+
+    // Vcard 1500 - 1599
+    #[strum(message = "vCard array does not contain a vCard")]
+    VcardArrayIsEmpty = 1500,
+    #[strum(message = "vCard has no fn property")]
+    VcardHasNoFn = 1501,
+    #[strum(message = "vCard fn property is empty")]
+    VcardFnIsEmpty = 1502,
+
+    // Port 43 1600 - 1699
+    #[strum(message = "port43 appears to be empty or only whitespace")]
+    Port43IsEmpty = 1600,
+
+    // Public Id 1700 - 1799
+    #[strum(message = "publicId type is absent")]
+    PublicIdTypeIsAbsent = 1700,
+    #[strum(message = "publicId identifier is absent")]
+    PublicIdIdentifierIsAbsent = 1701,
+
+    // HTTP 1800 - 1899
+    #[strum(message = "Use of access-control-allow-origin is recommended.")]
+    CorsAllowOriginRecommended = 1800,
+    #[strum(message = "Use of access-control-allow-origin with asterisk is recommended.")]
+    CorsAllowOriginStarRecommended = 1801,
+    #[strum(message = "Use of access-control-allow-credentials is not recommended.")]
+    CorsAllowCredentialsNotRecommended = 1802,
+    #[strum(message = "No content-type header received.")]
+    ContentTypeIsAbsent = 1803,
+    #[strum(message = "Content-type is not application/rdap+json.")]
+    ContentTypeIsNotRdap = 1804,
+
+    // Cidr0 1900 - 1999
+    #[strum(message = "Cidr0 v4 prefix is absent")]
+    Cidr0V4PrefixIsAbsent = 1900,
+    #[strum(message = "Cidr0 v4 length is absent")]
+    Cidr0V4LengthIsAbsent = 1901,
+    #[strum(message = "Cidr0 v6 prefix is absent")]
+    Cidr0V6PrefixIsAbsent = 1902,
+    #[strum(message = "Cidr0 v6 length is absent")]
+    Cidr0V6LengthIsAbsent = 1903,
+
+    // ICANN Profile 2000 - 2099
+    #[strum(message = "RDAP Service Must use HTTPS.")]
+    MustUseHttps = 2000,
+    #[strum(message = "access-control-allow-origin is not asterisk")]
+    AllowOriginNotStar = 2001,
+
+    // Explicit Testing Errors 2100 - 2199
+    #[strum(message = "CNAME without A records.")]
+    CnameWithoutARecords = 2100,
+    #[strum(message = "CNAME without AAAA records.")]
+    CnameWithoutAAAARecords = 2101,
+    #[strum(message = "No A records.")]
+    NoARecords = 2102,
+    #[strum(message = "No AAAA records.")]
+    NoAAAARecords = 2103,
+    #[strum(message = "Expected extension not found.")]
+    ExpectedExtensionNotFound = 2104,
+    #[strum(message = "IPv6 Support Required.")]
+    Ipv6SupportRequiredByIcann = 2105,
+
+    // Secure DNS 2200 - 2299
+    #[strum(message = "delegationSigned is a string not a bool.")]
+    DelegationSignedIsString = 2200,
+    #[strum(message = "zoneSigned is a string not a bool.")]
+    ZoneSignedIsString = 2201,
+    #[strum(message = "maxSigLife is a string not a number.")]
+    MaxSigLifeIsString = 2202,
+    // key data
+    #[strum(message = "keyData algorithm is a string not a number.")]
+    KeyDatumAlgorithmIsString = 2203,
+    #[strum(message = "keyData algorithm is out of range.")]
+    KeyDatumAlgorithmIsOutOfRange = 2204,
+    #[strum(message = "keyData flags is a string not a number.")]
+    KeyDatumFlagsIsString = 2205,
+    #[strum(message = "keyData flags is out of range.")]
+    KeyDatumFlagsIsOutOfRange = 2206,
+    #[strum(message = "keyData protocol is a string not a number.")]
+    KeyDatumProtocolIsString = 2207,
+    #[strum(message = "keyData protocol is out of range.")]
+    KeyDatumProtocolIsOutOfRange = 2208,
+    // ds data
+    #[strum(message = "dsData algorithm is a string not a number.")]
+    DsDatumAlgorithmIsString = 2213,
+    #[strum(message = "dsData algorithm is out of range.")]
+    DsDatumAlgorithmIsOutOfRange = 2214,
+    #[strum(message = "dsData keyTag is a string not a number.")]
+    DsDatumKeyTagIsString = 2215,
+    #[strum(message = "dsData keyTag is out of range.")]
+    DsDatumKeyTagIsOutOfRange = 2216,
+    #[strum(message = "dsData digestType is a string not a number.")]
+    DsDatumDigestTypeIsString = 2217,
+    #[strum(message = "dsData digestType is out of range.")]
+    DsDatumDigestTypeIsOutOfRange = 2218,
+}
+
+impl Check {
+    pub fn check_item(self) -> CheckItem {
+        let check_class = match self {
+            Self::RdapConformanceMissing | Self::RdapConformanceInvalidParent => {
+                CheckClass::StdError
+            }
+            Self::UnknownExtention => CheckClass::StdWarning,
+
+            Self::LinkMissingValueProperty | Self::LinkMissingRelProperty => CheckClass::StdError,
+            Self::LinkRelatedHasNoType
+            | Self::LinkRelatedIsNotRdap
+            | Self::LinkSelfHasNoType
+            | Self::LinkSelfIsNotRdap => CheckClass::StdWarning,
+            Self::LinkObjectClassHasNoSelf => CheckClass::SpecificationNote,
+            Self::LinkMissingHrefProperty => CheckClass::StdError,
+
+            Self::VariantEmptyDomain => CheckClass::StdWarning,
+
+            Self::EventDateIsAbsent
+            | Self::EventDateIsNotRfc3339
+            | Self::EventActionIsAbsent
+            | Self::NoticeOrRemarkDescriptionIsAbsent
+            | Self::NoticeOrRemarkDescriptionIsString => CheckClass::StdError,
+
+            Self::HandleIsEmpty => CheckClass::StdWarning,
+
+            Self::StatusIsEmpty | Self::RoleIsEmpty => CheckClass::StdError,
+            Self::UnknownRole => CheckClass::StdWarning,
+            Self::RoleIsString | Self::LdhNameInvalid => CheckClass::StdError,
+            Self::LdhNameDocumentation => CheckClass::Informational,
+            Self::LdhNameDoesNotMatchUnicode => CheckClass::StdWarning,
+
+            Self::UnicodeNameInvalidDomain | Self::UnicodeNameInvalidUnicode => {
+                CheckClass::StdError
+            }
+
+            Self::NetworkOrAutnumNameIsEmpty
+            | Self::NetworkOrAutnumTypeIsEmpty
+            | Self::IpAddressMissing => CheckClass::StdWarning,
+            Self::IpAddressMalformed => CheckClass::StdError,
+            Self::IpAddressEndBeforeStart | Self::IpAddressVersionMismatch => {
+                CheckClass::StdWarning
+            }
+            Self::IpAddressMalformedVersion | Self::IpAddressListIsEmpty => CheckClass::StdError,
+            Self::IpAddressThisNetwork
+            | Self::IpAddressPrivateUse
+            | Self::IpAddressSharedNat
+            | Self::IpAddressLoopback
+            | Self::IpAddressLinkLocal
+            | Self::IpAddressUniqueLocal
+            | Self::IpAddressDocumentationNet
+            | Self::IpAddressReservedNet => CheckClass::Informational,
+            Self::IpAddressArrayIsString => CheckClass::StdError,
+
+            Self::AutnumMissing | Self::AutnumEndBeforeStart => CheckClass::StdWarning,
+            Self::AutnumPrivateUse | Self::AutnumDocumentation | Self::AutnumReserved => {
+                CheckClass::Informational
+            }
+
+            Self::VcardArrayIsEmpty | Self::VcardHasNoFn => CheckClass::StdError,
+            Self::VcardFnIsEmpty => CheckClass::SpecificationNote,
+
+            Self::Port43IsEmpty | Self::PublicIdTypeIsAbsent | Self::PublicIdIdentifierIsAbsent => {
+                CheckClass::StdError
+            }
+
+            Self::CorsAllowOriginRecommended
+            | Self::CorsAllowOriginStarRecommended
+            | Self::CorsAllowCredentialsNotRecommended => CheckClass::StdWarning,
+            Self::ContentTypeIsAbsent | Self::ContentTypeIsNotRdap => CheckClass::StdError,
+
+            Self::Cidr0V4PrefixIsAbsent
+            | Self::Cidr0V4LengthIsAbsent
+            | Self::Cidr0V6PrefixIsAbsent
+            | Self::Cidr0V6LengthIsAbsent => CheckClass::Cidr0Error,
+
+            Self::MustUseHttps | Self::AllowOriginNotStar => CheckClass::IcannError,
+
+            Self::CnameWithoutARecords | Self::CnameWithoutAAAARecords => CheckClass::StdError,
+            Self::NoARecords | Self::NoAAAARecords => CheckClass::SpecificationNote,
+            Self::ExpectedExtensionNotFound => CheckClass::StdError,
+            Self::Ipv6SupportRequiredByIcann => CheckClass::IcannError,
+
+            Self::DelegationSignedIsString
+            | Self::ZoneSignedIsString
+            | Self::MaxSigLifeIsString
+            | Self::KeyDatumAlgorithmIsString
+            | Self::KeyDatumAlgorithmIsOutOfRange
+            | Self::KeyDatumFlagsIsString
+            | Self::KeyDatumFlagsIsOutOfRange
+            | Self::KeyDatumProtocolIsString
+            | Self::KeyDatumProtocolIsOutOfRange
+            | Self::DsDatumAlgorithmIsString
+            | Self::DsDatumAlgorithmIsOutOfRange
+            | Self::DsDatumKeyTagIsString
+            | Self::DsDatumKeyTagIsOutOfRange
+            | Self::DsDatumDigestTypeIsString
+            | Self::DsDatumDigestTypeIsOutOfRange => CheckClass::StdError,
+        };
+        CheckItem {
+            check_class,
+            check: self,
+        }
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use crate::check::RdapStructure;
+
+    use super::{traverse_checks, Check, CheckClass, CheckItem, Checks};
+
+    #[test]
+    fn GIVEN_info_checks_WHEN_traversed_for_info_THEN_found() {
+        // GIVEN
+        let checks = Checks {
+            rdap_struct: RdapStructure::Entity,
+            items: vec![CheckItem {
+                check_class: CheckClass::Informational,
+                check: Check::VariantEmptyDomain,
+            }],
+            sub_checks: vec![],
+        };
+
+        // WHEN
+        let found = traverse_checks(
+            &checks,
+            &[CheckClass::Informational],
+            None,
+            &mut |struct_tree, check_item| println!("{struct_tree} -> {check_item}"),
+        );
+
+        // THEN
+        assert!(found);
+    }
+
+    #[test]
+    fn GIVEN_specwarn_checks_WHEN_traversed_for_info_THEN_not_found() {
+        // GIVEN
+        let checks = Checks {
+            rdap_struct: RdapStructure::Entity,
+            items: vec![CheckItem {
+                check_class: CheckClass::StdWarning,
+                check: Check::VariantEmptyDomain,
+            }],
+            sub_checks: vec![],
+        };
+
+        // WHEN
+        let found = traverse_checks(
+            &checks,
+            &[CheckClass::Informational],
+            None,
+            &mut |struct_tree, check_item| println!("{struct_tree} -> {check_item}"),
+        );
+
+        // THEN
+        assert!(!found);
+    }
+
+    #[test]
+    fn GIVEN_info_subchecks_WHEN_traversed_for_info_THEN_found() {
+        // GIVEN
+        let checks = Checks {
+            rdap_struct: RdapStructure::Entity,
+            items: vec![],
+            sub_checks: vec![Checks {
+                rdap_struct: RdapStructure::Autnum,
+                items: vec![CheckItem {
+                    check_class: CheckClass::Informational,
+                    check: Check::VariantEmptyDomain,
+                }],
+                sub_checks: vec![],
+            }],
+        };
+
+        // WHEN
+        let found = traverse_checks(
+            &checks,
+            &[CheckClass::Informational],
+            None,
+            &mut |struct_tree, check_item| println!("{struct_tree} -> {check_item}"),
+        );
+
+        // THEN
+        assert!(found);
+    }
+
+    #[test]
+    fn GIVEN_specwarn_subchecks_WHEN_traversed_for_info_THEN_not_found() {
+        // GIVEN
+        let checks = Checks {
+            rdap_struct: RdapStructure::Entity,
+            items: vec![],
+            sub_checks: vec![Checks {
+                rdap_struct: RdapStructure::Autnum,
+                items: vec![CheckItem {
+                    check_class: CheckClass::StdWarning,
+                    check: Check::VariantEmptyDomain,
+                }],
+                sub_checks: vec![],
+            }],
+        };
+
+        // WHEN
+        let found = traverse_checks(
+            &checks,
+            &[CheckClass::Informational],
+            None,
+            &mut |struct_tree, check_item| println!("{struct_tree} -> {check_item}"),
+        );
+
+        // THEN
+        assert!(!found);
+    }
+
+    #[test]
+    fn GIVEN_checks_and_subchecks_WHEN_traversed_THEN_tree_structure_shows_tree() {
+        // GIVEN
+        let checks = Checks {
+            rdap_struct: RdapStructure::Entity,
+            items: vec![CheckItem {
+                check_class: CheckClass::Informational,
+                check: Check::RdapConformanceInvalidParent,
+            }],
+            sub_checks: vec![Checks {
+                rdap_struct: RdapStructure::Autnum,
+                items: vec![CheckItem {
+                    check_class: CheckClass::Informational,
+                    check: Check::VariantEmptyDomain,
+                }],
+                sub_checks: vec![],
+            }],
+        };
+
+        // WHEN
+        let mut structs: Vec<String> = vec![];
+        let found = traverse_checks(
+            &checks,
+            &[CheckClass::Informational],
+            None,
+            &mut |struct_tree, _check_item| structs.push(struct_tree.to_string()),
+        );
+
+        // THEN
+        assert!(found);
+        dbg!(&structs);
+        assert!(structs.contains(&"[ROOT]/entity".to_string()));
+        assert!(structs.contains(&"[ROOT]/entity/autnum".to_string()));
+    }
+}

icann-rdap-common/src/check/nameserver.rs

@@ -0,0 +1,184 @@
+use std::{any::TypeId, net::IpAddr, str::FromStr};
+
+use crate::response::nameserver::Nameserver;
+
+use super::{
+    string::{StringCheck, StringListCheck},
+    Check, CheckParams, Checks, GetChecks, GetSubChecks,
+};
+
+impl GetChecks for Nameserver {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks = if params.do_subchecks {
+            let mut sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            sub_checks.append(
+                &mut self
+                    .object_common
+                    .get_sub_checks(params.from_parent(TypeId::of::<Self>())),
+            );
+            sub_checks
+        } else {
+            vec![]
+        };
+
+        let mut items = vec![];
+
+        // check ldh
+        if let Some(ldh) = &self.ldh_name {
+            if !ldh.is_ldh_domain_name() {
+                items.push(Check::LdhNameInvalid.check_item());
+            }
+        }
+
+        if let Some(ip_addresses) = &self.ip_addresses {
+            if let Some(v6_addrs) = &ip_addresses.v6 {
+                if v6_addrs.is_string() {
+                    items.push(Check::IpAddressArrayIsString.check_item())
+                }
+                if v6_addrs.is_empty_or_any_empty_or_whitespace() {
+                    items.push(Check::IpAddressListIsEmpty.check_item())
+                }
+                if v6_addrs
+                    .vec()
+                    .iter()
+                    .any(|ip| IpAddr::from_str(ip).is_err())
+                {
+                    items.push(Check::IpAddressMalformed.check_item())
+                }
+            }
+            if let Some(v4_addrs) = &ip_addresses.v4 {
+                if v4_addrs.is_string() {
+                    items.push(Check::IpAddressArrayIsString.check_item())
+                }
+                if v4_addrs.is_empty_or_any_empty_or_whitespace() {
+                    items.push(Check::IpAddressListIsEmpty.check_item())
+                }
+                if v4_addrs
+                    .vec()
+                    .iter()
+                    .any(|ip| IpAddr::from_str(ip).is_err())
+                {
+                    items.push(Check::IpAddressMalformed.check_item())
+                }
+            }
+        }
+
+        Checks {
+            rdap_struct: super::RdapStructure::Nameserver,
+            items,
+            sub_checks,
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use {crate::prelude::*, rstest::rstest};
+
+    use crate::check::{Check, CheckParams, GetChecks};
+
+    #[rstest]
+    #[case("")]
+    #[case("  ")]
+    #[case("_.")]
+    fn check_nameserver_with_bad_ldh(#[case] ldh: &str) {
+        // GIVEN
+        let rdap = Nameserver::builder()
+            .ldh_name(ldh)
+            .build()
+            .unwrap()
+            .to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::LdhNameInvalid));
+    }
+
+    #[test]
+    fn check_nameserver_with_empty_v6s() {
+        // GIVEN
+        let ns = Nameserver::illegal()
+            .ldh_name("ns1.example.com")
+            .ip_addresses(IpAddresses::illegal().v6(vec![]).build())
+            .build()
+            .to_response();
+
+        // WHEN
+        let checks = ns.get_checks(CheckParams::for_rdap(&ns));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressListIsEmpty));
+    }
+
+    #[test]
+    fn check_nameserver_with_empty_v4s() {
+        // GIVEN
+        let ns = Nameserver::illegal()
+            .ldh_name("ns1.example.com")
+            .ip_addresses(IpAddresses::illegal().v4(vec![]).build())
+            .build()
+            .to_response();
+
+        // WHEN
+        let checks = ns.get_checks(CheckParams::for_rdap(&ns));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressListIsEmpty));
+    }
+
+    #[test]
+    fn check_nameserver_with_bad_v6s() {
+        // GIVEN
+        let ns = Nameserver::illegal()
+            .ldh_name("ns1.example.com")
+            .ip_addresses(IpAddresses::illegal().v6(vec!["__".to_string()]).build())
+            .build()
+            .to_response();
+
+        // WHEN
+        let checks = ns.get_checks(CheckParams::for_rdap(&ns));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressMalformed));
+    }
+
+    #[test]
+    fn check_nameserver_with_bad_v4s() {
+        // GIVEN
+        let ns = Nameserver::illegal()
+            .ldh_name("ns1.example.com")
+            .ip_addresses(IpAddresses::illegal().v4(vec!["___".to_string()]).build())
+            .build()
+            .to_response();
+
+        // WHEN
+        let checks = ns.get_checks(CheckParams::for_rdap(&ns));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressMalformed));
+    }
+}

icann-rdap-common/src/check/network.rs

@@ -0,0 +1,482 @@
+use std::{any::TypeId, net::IpAddr, str::FromStr};
+
+use cidr::IpCidr;
+
+use crate::response::network::{Cidr0Cidr, Network};
+
+use super::{string::StringCheck, Check, CheckParams, Checks, GetChecks, GetSubChecks};
+
+impl GetChecks for Network {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks = if params.do_subchecks {
+            let mut sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            sub_checks.append(
+                &mut self
+                    .object_common
+                    .get_sub_checks(params.from_parent(TypeId::of::<Self>())),
+            );
+            if let Some(cidr0) = &self.cidr0_cidrs {
+                cidr0.iter().for_each(|cidr| match cidr {
+                    Cidr0Cidr::V4Cidr(v4) => {
+                        if v4.v4prefix.is_none() {
+                            sub_checks.push(Checks {
+                                rdap_struct: super::RdapStructure::Cidr0,
+                                items: vec![Check::Cidr0V4PrefixIsAbsent.check_item()],
+                                sub_checks: vec![],
+                            })
+                        }
+                        if v4.length.is_none() {
+                            sub_checks.push(Checks {
+                                rdap_struct: super::RdapStructure::Cidr0,
+                                items: vec![Check::Cidr0V4LengthIsAbsent.check_item()],
+                                sub_checks: vec![],
+                            })
+                        }
+                    }
+                    Cidr0Cidr::V6Cidr(v6) => {
+                        if v6.v6prefix.is_none() {
+                            sub_checks.push(Checks {
+                                rdap_struct: super::RdapStructure::Cidr0,
+                                items: vec![Check::Cidr0V6PrefixIsAbsent.check_item()],
+                                sub_checks: vec![],
+                            })
+                        }
+                        if v6.length.is_none() {
+                            sub_checks.push(Checks {
+                                rdap_struct: super::RdapStructure::Cidr0,
+                                items: vec![Check::Cidr0V6LengthIsAbsent.check_item()],
+                                sub_checks: vec![],
+                            })
+                        }
+                    }
+                })
+            }
+            sub_checks
+        } else {
+            vec![]
+        };
+
+        let mut items = vec![];
+
+        if let Some(name) = &self.name {
+            if name.is_whitespace_or_empty() {
+                items.push(Check::NetworkOrAutnumNameIsEmpty.check_item())
+            }
+        }
+
+        if let Some(network_type) = &self.network_type {
+            if network_type.is_whitespace_or_empty() {
+                items.push(Check::NetworkOrAutnumTypeIsEmpty.check_item())
+            }
+        }
+
+        if self.start_address.is_none() || self.end_address.is_none() {
+            items.push(Check::IpAddressMissing.check_item())
+        }
+
+        if let Some(start_ip) = &self.start_address {
+            let start_addr = IpAddr::from_str(start_ip);
+            if start_addr.is_err() {
+                items.push(Check::IpAddressMalformed.check_item())
+            } else if self.end_address.is_some() {
+                let Ok(start_addr) = start_addr else {
+                    panic!("ip result did not work")
+                };
+                let Some(end_ip) = &self.end_address else {
+                    panic!("end address unwrap failed")
+                };
+                if let Ok(end_addr) = IpAddr::from_str(end_ip) {
+                    if start_addr > end_addr {
+                        items.push(Check::IpAddressEndBeforeStart.check_item())
+                    }
+                    if let Some(ip_version) = &self.ip_version {
+                        if (ip_version == "v4" && (start_addr.is_ipv6() || end_addr.is_ipv6()))
+                            || (ip_version == "v6" && (start_addr.is_ipv4() || end_addr.is_ipv4()))
+                        {
+                            items.push(Check::IpAddressVersionMismatch.check_item())
+                        } else if ip_version != "v4" && ip_version != "v6" {
+                            items.push(Check::IpAddressMalformedVersion.check_item())
+                        }
+                    }
+                    let this_network =
+                        IpCidr::from_str("0.0.0.0/8").expect("incorrect this netowrk cidr");
+                    if this_network.contains(&start_addr) && this_network.contains(&end_addr) {
+                        items.push(Check::IpAddressThisNetwork.check_item())
+                    }
+                    let private_10 = IpCidr::from_str("10.0.0.0/8").expect("incorrect net 10 cidr");
+                    let private_172 =
+                        IpCidr::from_str("172.16.0.0/12").expect("incorrect net 172.16 cidr");
+                    let private_192 =
+                        IpCidr::from_str("192.168.0.0/16").expect("incorrect net 192.168 cidr");
+                    if (private_10.contains(&start_addr) && private_10.contains(&end_addr))
+                        || (private_172.contains(&start_addr) && private_172.contains(&end_addr))
+                        || (private_192.contains(&start_addr) && private_192.contains(&end_addr))
+                    {
+                        items.push(Check::IpAddressPrivateUse.check_item())
+                    }
+                    let shared_nat =
+                        IpCidr::from_str("100.64.0.0/10").expect("incorrect net 100 cidr");
+                    if shared_nat.contains(&start_addr) && shared_nat.contains(&end_addr) {
+                        items.push(Check::IpAddressSharedNat.check_item())
+                    }
+                    let loopback =
+                        IpCidr::from_str("127.0.0.0/8").expect("incorrect loopback cidr");
+                    if loopback.contains(&start_addr) && loopback.contains(&end_addr) {
+                        items.push(Check::IpAddressLoopback.check_item())
+                    }
+                    let linklocal1 =
+                        IpCidr::from_str("169.254.0.0/16").expect("incorrect linklocal1 cidr");
+                    let linklocal2 =
+                        IpCidr::from_str("fe80::/10").expect("incorrect linklocal2 cidr");
+                    if (linklocal1.contains(&start_addr) && linklocal1.contains(&end_addr))
+                        || (linklocal2.contains(&start_addr) && linklocal2.contains(&end_addr))
+                    {
+                        items.push(Check::IpAddressLinkLocal.check_item())
+                    }
+                    let uniquelocal =
+                        IpCidr::from_str("fe80::/10").expect("incorrect unique local cidr");
+                    if uniquelocal.contains(&start_addr) && uniquelocal.contains(&end_addr) {
+                        items.push(Check::IpAddressUniqueLocal.check_item())
+                    }
+                    let doc1 = IpCidr::from_str("192.0.2.0/24").expect("incorrect doc1 cidr");
+                    let doc2 = IpCidr::from_str("198.51.100.0/24").expect("incorrect doc2 cidr");
+                    let doc3 = IpCidr::from_str("203.0.113.0/24").expect("incorrect doc3 cidr");
+                    let doc4 = IpCidr::from_str("2001:db8::/32").expect("incorrect doc4 cidr");
+                    if (doc1.contains(&start_addr) && doc1.contains(&end_addr))
+                        || (doc2.contains(&start_addr) && doc2.contains(&end_addr))
+                        || (doc3.contains(&start_addr) && doc3.contains(&end_addr))
+                        || (doc4.contains(&start_addr) && doc4.contains(&end_addr))
+                    {
+                        items.push(Check::IpAddressDocumentationNet.check_item())
+                    }
+                    let reserved =
+                        IpCidr::from_str("240.0.0.0/4").expect("incorrect reserved cidr");
+                    if reserved.contains(&start_addr) && reserved.contains(&end_addr) {
+                        items.push(Check::IpAddressLinkLocal.check_item())
+                    }
+                }
+            }
+        }
+
+        if let Some(end_ip) = &self.end_address {
+            let addr = IpAddr::from_str(end_ip);
+            if addr.is_err() {
+                items.push(Check::IpAddressMalformed.check_item())
+            }
+        }
+
+        Checks {
+            rdap_struct: super::RdapStructure::IpNetwork,
+            items,
+            sub_checks,
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+
+    use rstest::rstest;
+
+    use crate::{
+        prelude::{Numberish, ToResponse},
+        response::network::{Cidr0Cidr, Network, V4Cidr, V6Cidr},
+    };
+
+    use crate::check::{Check, CheckParams, GetChecks};
+
+    #[test]
+    fn check_network_with_empty_name() {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr("10.0.0.0/8")
+            .build()
+            .expect("invalid ip cidr");
+        network.name = Some("".to_string());
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::NetworkOrAutnumNameIsEmpty));
+    }
+
+    #[test]
+    fn check_network_with_empty_type() {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr("10.0.0.0/8")
+            .build()
+            .expect("invalid ip cidr");
+        network.network_type = Some("".to_string());
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::NetworkOrAutnumTypeIsEmpty));
+    }
+
+    #[test]
+    fn check_network_with_no_start() {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr("10.0.0.0/8")
+            .build()
+            .expect("invalid ip cidr");
+        network.start_address = None;
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressMissing));
+    }
+
+    #[test]
+    fn check_network_with_no_end() {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr("10.0.0.0/8")
+            .build()
+            .expect("invalid ip cidr");
+        network.end_address = None;
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressMissing));
+    }
+
+    #[test]
+    fn check_network_with_bad_start() {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr("10.0.0.0/8")
+            .build()
+            .expect("invalid ip cidr");
+        network.start_address = Some("____".to_string());
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressMalformed));
+    }
+
+    #[test]
+    fn check_network_with_bad_end() {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr("10.0.0.0/8")
+            .build()
+            .expect("invalid ip cidr");
+        network.end_address = Some("___".to_string());
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressMalformed));
+    }
+
+    #[test]
+    fn check_network_with_end_before_start() {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr("10.0.0.0/8")
+            .build()
+            .expect("invalid ip cidr");
+        let swap = network.end_address.clone();
+        network.end_address = network.start_address.clone();
+        network.start_address = swap;
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressEndBeforeStart));
+    }
+
+    #[rstest]
+    #[case("10.0.0.0/8", "v6")]
+    #[case("2000::/64", "v4")]
+    fn check_network_with_ip_version(#[case] cidr: &str, #[case] version: &str) {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr(cidr)
+            .build()
+            .expect("invalid ip cidr");
+        network.ip_version = Some(version.to_string());
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressVersionMismatch));
+    }
+
+    #[rstest]
+    #[case("10.0.0.0/8", "__")]
+    #[case("2000::/64", "__")]
+    #[case("10.0.0.0/8", "")]
+    #[case("2000::/64", "")]
+    fn check_network_with_bad_ip_version(#[case] cidr: &str, #[case] version: &str) {
+        // GIVEN
+        let mut network = Network::builder()
+            .cidr(cidr)
+            .build()
+            .expect("invalid ip cidr");
+        network.ip_version = Some(version.to_string());
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .items
+            .iter()
+            .any(|c| c.check == Check::IpAddressMalformedVersion));
+    }
+
+    #[test]
+    fn check_cidr0_with_v4_prefixex() {
+        // GIVEN
+        let network = Network::illegal()
+            .cidr0_cidrs(vec![Cidr0Cidr::V4Cidr(V4Cidr {
+                v4prefix: None,
+                length: Some(Numberish::<u8>::from(0)),
+            })])
+            .build();
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .sub(crate::check::RdapStructure::Cidr0)
+            .expect("Cidr0")
+            .items
+            .iter()
+            .any(|c| c.check == Check::Cidr0V4PrefixIsAbsent));
+    }
+
+    #[test]
+    fn check_cidr0_with_v6_prefixex() {
+        // GIVEN
+        let network = Network::illegal()
+            .cidr0_cidrs(vec![Cidr0Cidr::V6Cidr(V6Cidr {
+                v6prefix: None,
+                length: Some(Numberish::<u8>::from(0)),
+            })])
+            .build();
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .sub(crate::check::RdapStructure::Cidr0)
+            .expect("Cidr0")
+            .items
+            .iter()
+            .any(|c| c.check == Check::Cidr0V6PrefixIsAbsent));
+    }
+
+    #[test]
+    fn check_cidr0_with_v4_length() {
+        // GIVEN
+        let network = Network::illegal()
+            .cidr0_cidrs(vec![Cidr0Cidr::V4Cidr(V4Cidr {
+                v4prefix: Some("0.0.0.0".to_string()),
+                length: None,
+            })])
+            .build();
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .sub(crate::check::RdapStructure::Cidr0)
+            .expect("Cidr0")
+            .items
+            .iter()
+            .any(|c| c.check == Check::Cidr0V4LengthIsAbsent));
+    }
+
+    #[test]
+    fn check_cidr0_with_v6_length() {
+        // GIVEN
+        let network = Network::illegal()
+            .cidr0_cidrs(vec![Cidr0Cidr::V6Cidr(V6Cidr {
+                v6prefix: Some("0.0.0.0".to_string()),
+                length: None,
+            })])
+            .build();
+        let rdap = network.to_response();
+
+        // WHEN
+        let checks = rdap.get_checks(CheckParams::for_rdap(&rdap));
+
+        // THEN
+        dbg!(&checks);
+        assert!(checks
+            .sub(crate::check::RdapStructure::Cidr0)
+            .expect("Cidr0")
+            .items
+            .iter()
+            .any(|c| c.check == Check::Cidr0V6LengthIsAbsent));
+    }
+}

icann-rdap-common/src/check/search.rs

@@ -0,0 +1,68 @@
+use std::any::TypeId;
+
+use crate::response::search::{DomainSearchResults, EntitySearchResults, NameserverSearchResults};
+
+use super::{CheckParams, Checks, GetChecks, GetSubChecks};
+
+impl GetChecks for DomainSearchResults {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks: Vec<Checks> = if params.do_subchecks {
+            let mut sub_checks = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            self.results.iter().for_each(|result| {
+                sub_checks.push(result.get_checks(params.from_parent(TypeId::of::<Self>())))
+            });
+            sub_checks
+        } else {
+            vec![]
+        };
+        Checks {
+            rdap_struct: super::RdapStructure::DomainSearchResults,
+            items: vec![],
+            sub_checks,
+        }
+    }
+}
+
+impl GetChecks for NameserverSearchResults {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks: Vec<Checks> = if params.do_subchecks {
+            let mut sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            self.results.iter().for_each(|result| {
+                sub_checks.push(result.get_checks(params.from_parent(TypeId::of::<Self>())))
+            });
+            sub_checks
+        } else {
+            vec![]
+        };
+        Checks {
+            rdap_struct: super::RdapStructure::NameserverSearchResults,
+            items: vec![],
+            sub_checks,
+        }
+    }
+}
+
+impl GetChecks for EntitySearchResults {
+    fn get_checks(&self, params: CheckParams) -> super::Checks {
+        let sub_checks: Vec<Checks> = if params.do_subchecks {
+            let mut sub_checks: Vec<Checks> = self
+                .common
+                .get_sub_checks(params.from_parent(TypeId::of::<Self>()));
+            self.results.iter().for_each(|result| {
+                sub_checks.push(result.get_checks(params.from_parent(TypeId::of::<Self>())))
+            });
+            sub_checks
+        } else {
+            vec![]
+        };
+        Checks {
+            rdap_struct: super::RdapStructure::EntitySearchResults,
+            items: vec![],
+            sub_checks,
+        }
+    }
+}

icann-rdap-common/src/check/string.rs

@@ -0,0 +1,295 @@
+/// Functions for types that can be turned into strings.
+///
+/// Example:
+/// ```rust
+/// use icann_rdap_common::check::*;
+///
+/// let s = "  ";
+/// assert!(s.is_whitespace_or_empty());
+/// ```
+pub trait StringCheck {
+    /// Tests if the string is empty, including for if the string only has whitespace.
+    fn is_whitespace_or_empty(&self) -> bool;
+
+    /// Tests if the string contains only letters, digits, or hyphens and is not empty.
+    fn is_ldh_string(&self) -> bool;
+
+    /// Tests if a string is an LDH doamin name. This is not to be confused with [StringCheck::is_ldh_string],
+    /// which checks individual domain labels.
+    fn is_ldh_domain_name(&self) -> bool;
+
+    /// Tests if a string is a Unicode domain name.
+    fn is_unicode_domain_name(&self) -> bool;
+
+    /// Tests if a string is begins with a period and only has one label.
+    fn is_tld(&self) -> bool;
+}
+
+impl<T: ToString> StringCheck for T {
+    fn is_whitespace_or_empty(&self) -> bool {
+        let s = self.to_string();
+        s.is_empty() || s.chars().all(char::is_whitespace)
+    }
+
+    fn is_ldh_string(&self) -> bool {
+        let s = self.to_string();
+        !s.is_empty() && s.chars().all(char::is_ldh)
+    }
+
+    fn is_ldh_domain_name(&self) -> bool {
+        let s = self.to_string();
+        s == "." || (!s.is_empty() && s.split_terminator('.').all(|s| s.is_ldh_string()))
+    }
+
+    fn is_unicode_domain_name(&self) -> bool {
+        let s = self.to_string();
+        s == "."
+            || (!s.is_empty()
+                && s.split_terminator('.').all(|s| {
+                    s.chars()
+                        .all(|c| c == '-' || (!c.is_ascii_punctuation() && !c.is_whitespace()))
+                }))
+    }
+
+    fn is_tld(&self) -> bool {
+        let s = self.to_string();
+        s.starts_with('.')
+            && s.len() > 2
+            && s.matches('.').count() == 1
+            && s.split_terminator('.').all(|s| {
+                s.chars()
+                    .all(|c| !c.is_ascii_punctuation() && !c.is_whitespace())
+            })
+    }
+}
+
+/// Functions for types that can be turned into arrays of strings.
+///
+/// Example:
+/// ```rust
+/// use icann_rdap_common::check::*;
+///
+/// let a: &[&str] = &["foo",""];
+/// assert!(a.is_empty_or_any_empty_or_whitespace());
+/// ```
+pub trait StringListCheck {
+    /// Tests if a list of strings is empty, or if any of the
+    /// elemeents of the list are empty or whitespace.
+    fn is_empty_or_any_empty_or_whitespace(&self) -> bool;
+
+    /// Tests if a list of strings ard LDH strings. See [CharCheck::is_ldh].
+    fn is_ldh_string_list(&self) -> bool;
+}
+
+impl<T: ToString> StringListCheck for &[T] {
+    fn is_empty_or_any_empty_or_whitespace(&self) -> bool {
+        self.is_empty() || self.iter().any(|s| s.to_string().is_whitespace_or_empty())
+    }
+
+    fn is_ldh_string_list(&self) -> bool {
+        !self.is_empty() && self.iter().all(|s| s.to_string().is_ldh_string())
+    }
+}
+
+impl<T: ToString> StringListCheck for Vec<T> {
+    fn is_empty_or_any_empty_or_whitespace(&self) -> bool {
+        self.is_empty() || self.iter().any(|s| s.to_string().is_whitespace_or_empty())
+    }
+
+    fn is_ldh_string_list(&self) -> bool {
+        !self.is_empty() && self.iter().all(|s| s.to_string().is_ldh_string())
+    }
+}
+
+/// Functions for chars.
+///
+/// Example:
+/// ```rust
+/// use icann_rdap_common::check::*;
+///
+/// let c = 'a';
+/// assert!(c.is_ldh());
+/// ```
+pub trait CharCheck {
+    /// Checks if the character is a letter, digit or a hyphen
+    #[allow(clippy::wrong_self_convention)]
+    fn is_ldh(self) -> bool;
+}
+
+impl CharCheck for char {
+    fn is_ldh(self) -> bool {
+        matches!(self, 'A'..='Z' | 'a'..='z' | '0'..='9' | '-')
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use rstest::rstest;
+
+    use crate::check::string::{CharCheck, StringListCheck};
+
+    use super::StringCheck;
+
+    #[rstest]
+    #[case("foo", false)]
+    #[case("", true)]
+    #[case(" ", true)]
+    #[case("foo bar", false)]
+    fn GIVEN_string_WHEN_is_whitespace_or_empty_THEN_correct_result(
+        #[case] test_string: &str,
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_string.is_whitespace_or_empty();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case(&[], true)]
+    #[case(&["foo"], false)]
+    #[case(&["foo",""], true)]
+    #[case(&["foo","bar"], false)]
+    #[case(&["foo","bar baz"], false)]
+    #[case(&[""], true)]
+    #[case(&[" "], true)]
+    fn GIVEN_string_list_WHEN_is_whitespace_or_empty_THEN_correct_result(
+        #[case] test_list: &[&str],
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_list.is_empty_or_any_empty_or_whitespace();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case('a', true)]
+    #[case('l', true)]
+    #[case('z', true)]
+    #[case('A', true)]
+    #[case('L', true)]
+    #[case('Z', true)]
+    #[case('0', true)]
+    #[case('3', true)]
+    #[case('9', true)]
+    #[case('-', true)]
+    #[case('_', false)]
+    #[case('.', false)]
+    fn GIVEN_char_WHEN_is_ldh_THEN_correct_result(#[case] test_char: char, #[case] expected: bool) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_char.is_ldh();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case("foo", true)]
+    #[case("", false)]
+    #[case("foo-bar", true)]
+    #[case("foo bar", false)]
+    fn GIVEN_string_WHEN_is_ldh_string_THEN_correct_result(
+        #[case] test_string: &str,
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_string.is_ldh_string();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case("foo", false)]
+    #[case("", false)]
+    #[case("foo-bar", false)]
+    #[case("foo bar", false)]
+    #[case(".", false)]
+    #[case(".foo.bar", false)]
+    #[case(".foo", true)]
+    fn GIVEN_string_WHEN_is_tld_THEN_correct_result(
+        #[case] test_string: &str,
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_string.is_tld();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case(&[], false)]
+    #[case(&["foo"], true)]
+    #[case(&["foo",""], false)]
+    #[case(&["foo","bar"], true)]
+    #[case(&["foo","bar baz"], false)]
+    #[case(&[""], false)]
+    #[case(&[" "], false)]
+    fn GIVEN_string_list_WHEN_is_ldh_string_list_THEN_correct_result(
+        #[case] test_list: &[&str],
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_list.is_ldh_string_list();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case("foo", true)]
+    #[case("", false)]
+    #[case(".", true)]
+    #[case("foo.bar", true)]
+    #[case("foo.bar.", true)]
+    fn GIVEN_string_WHEN_is_ldh_domain_name_THEN_correct_result(
+        #[case] test_string: &str,
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_string.is_ldh_domain_name();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case("foo", true)]
+    #[case("", false)]
+    #[case(".", true)]
+    #[case("foo.bar", true)]
+    #[case("foo.bar.", true)]
+    #[case("fo_o.bar.", false)]
+    #[case("fo o.bar.", false)]
+    fn GIVEN_string_WHEN_is_unicode_domain_name_THEN_correct_result(
+        #[case] test_string: &str,
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = test_string.is_unicode_domain_name();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+}

icann-rdap-common/src/contact/from_vcard.rs

@@ -0,0 +1,846 @@
+//! Convert jCard/vCard to Contact.
+use serde_json::Value;
+
+use super::{Contact, Email, Lang, NameParts, Phone, PostalAddress};
+
+impl Contact {
+    /// Creates a Contact from an array of [`Value`]s.
+    ///
+    /// ```rust
+    /// use icann_rdap_common::contact::Contact;
+    /// use serde::Deserialize;
+    /// use serde_json::Value;
+    ///
+    /// let json = r#"
+    /// [
+    ///   "vcard",
+    ///   [
+    ///     ["version", {}, "text", "4.0"],
+    ///     ["fn", {}, "text", "Joe User"],
+    ///     ["kind", {}, "text", "individual"],
+    ///     ["org", {
+    ///       "type":"work"
+    ///     }, "text", "Example"],
+    ///     ["title", {}, "text", "Research Scientist"],
+    ///     ["role", {}, "text", "Project Lead"],
+    ///     ["adr",
+    ///       { "type":"work" },
+    ///       "text",
+    ///       [
+    ///         "",
+    ///         "Suite 1234",
+    ///         "4321 Rue Somewhere",
+    ///         "Quebec",
+    ///         "QC",
+    ///         "G1V 2M2",
+    ///         "Canada"
+    ///       ]
+    ///     ],
+    ///     ["tel",
+    ///       { "type":["work", "voice"], "pref":"1" },
+    ///       "uri", "tel:+1-555-555-1234;ext=102"
+    ///     ],
+    ///     ["email",
+    ///       { "type":"work" },
+    ///       "text", "joe.user@example.com"
+    ///     ]
+    ///   ]
+    /// ]"#;
+    ///
+    /// let data: Vec<Value> = serde_json::from_str(json).unwrap();
+    /// let contact = Contact::from_vcard(&data);
+    /// ```
+    pub fn from_vcard(vcard_array: &[Value]) -> Option<Contact> {
+        // value should be "vcard" followed by array
+        let value = vcard_array.first()?;
+        let vcard_literal = value.as_str()?;
+        if !vcard_literal.eq_ignore_ascii_case("vcard") {
+            return None;
+        };
+        let vcard = vcard_array.get(1)?;
+        let vcard = vcard.as_array()?;
+
+        let contact = Contact::builder()
+            .and_full_name(vcard.find_property("fn").get_text())
+            .and_kind(vcard.find_property("kind").get_text())
+            .titles(vcard.find_properties("title").get_texts().unwrap_or(vec![]))
+            .roles(vcard.find_properties("role").get_texts().unwrap_or(vec![]))
+            .nick_names(
+                vcard
+                    .find_properties("nickname")
+                    .get_texts()
+                    .unwrap_or(vec![]),
+            )
+            .organization_names(vcard.find_properties("org").get_texts().unwrap_or(vec![]))
+            .langs(vcard.find_properties("lang").get_langs().unwrap_or(vec![]))
+            .emails(
+                vcard
+                    .find_properties("email")
+                    .get_emails()
+                    .unwrap_or(vec![]),
+            )
+            .phones(vcard.find_properties("tel").get_phones().unwrap_or(vec![]))
+            .postal_addresses(
+                vcard
+                    .find_properties("adr")
+                    .get_postal_addresses()
+                    .unwrap_or(vec![]),
+            )
+            .and_name_parts(vcard.find_property("n").get_name_parts())
+            .contact_uris(
+                vcard
+                    .find_properties("contact-uri")
+                    .get_texts()
+                    .unwrap_or(vec![]),
+            )
+            .urls(vcard.find_properties("url").get_texts().unwrap_or(vec![]))
+            .build();
+
+        contact.is_non_empty().then_some(contact)
+    }
+}
+
+trait FindProperty<'a> {
+    fn find_property(self, name: &'a str) -> Option<&'a Vec<Value>>;
+}
+
+impl<'a> FindProperty<'a> for &'a [Value] {
+    fn find_property(self, name: &'a str) -> Option<&'a Vec<Value>> {
+        self.iter()
+            .filter_map(|prop_array| prop_array.as_array())
+            .find(|prop_array| {
+                if let Some(prop_name) = prop_array.first() {
+                    if let Some(prop_name) = prop_name.as_str() {
+                        prop_name.eq_ignore_ascii_case(name)
+                    } else {
+                        false
+                    }
+                } else {
+                    false
+                }
+            })
+    }
+}
+
+trait FindProperties<'a> {
+    fn find_properties(self, name: &'a str) -> Vec<&'a Vec<Value>>;
+}
+
+impl<'a> FindProperties<'a> for &'a [Value] {
+    fn find_properties(self, name: &'a str) -> Vec<&'a Vec<Value>> {
+        self.iter()
+            .filter_map(|prop_array| prop_array.as_array())
+            .filter(|prop_array| {
+                if let Some(prop_name) = prop_array.first() {
+                    if let Some(prop_name) = prop_name.as_str() {
+                        prop_name.eq_ignore_ascii_case(name)
+                    } else {
+                        false
+                    }
+                } else {
+                    false
+                }
+            })
+            .collect()
+    }
+}
+
+trait GetText<'a> {
+    fn get_text(self) -> Option<String>;
+}
+
+impl<'a> GetText<'a> for Option<&'a Vec<Value>> {
+    fn get_text(self) -> Option<String> {
+        let values = self?;
+        let fourth = values.get(3)?;
+        fourth.as_str().map(|s| s.to_owned())
+    }
+}
+
+impl<'a> GetText<'a> for &'a Vec<Value> {
+    fn get_text(self) -> Option<String> {
+        let fourth = self.get(3)?;
+        fourth.as_str().map(|s| s.to_owned())
+    }
+}
+
+trait GetTexts<'a> {
+    fn get_texts(self) -> Option<Vec<String>>;
+}
+
+impl<'a> GetTexts<'a> for &'a [&'a Vec<Value>] {
+    fn get_texts(self) -> Option<Vec<String>> {
+        let texts = self
+            .iter()
+            .filter_map(|prop| (*prop).get_text())
+            .collect::<Vec<String>>();
+        (!texts.is_empty()).then_some(texts)
+    }
+}
+
+trait GetPreference<'a> {
+    fn get_preference(self) -> Option<u64>;
+}
+
+impl<'a> GetPreference<'a> for &'a Vec<Value> {
+    fn get_preference(self) -> Option<u64> {
+        let second = self.get(1)?;
+        let second = second.as_object()?;
+        let preference = second.get("pref")?;
+        preference.as_str().and_then(|s| s.parse().ok())
+    }
+}
+
+trait GetLabel<'a> {
+    fn get_label(self) -> Option<String>;
+}
+
+impl<'a> GetLabel<'a> for &'a Vec<Value> {
+    fn get_label(self) -> Option<String> {
+        let second = self.get(1)?;
+        let second = second.as_object()?;
+        let label = second.get("label")?;
+        label.as_str().map(|s| s.to_owned())
+    }
+}
+
+const CONTEXTS: [&str; 6] = ["home", "work", "office", "private", "mobile", "cell"];
+
+trait GetContexts<'a> {
+    fn get_contexts(self) -> Option<Vec<String>>;
+}
+
+impl<'a> GetContexts<'a> for &'a Vec<Value> {
+    fn get_contexts(self) -> Option<Vec<String>> {
+        let second = self.get(1)?;
+        let second = second.as_object()?;
+        let contexts = second.get("type")?;
+        if let Some(context) = contexts.as_str() {
+            let context = context.to_lowercase();
+            if CONTEXTS.contains(&context.as_str()) {
+                return Some(vec![context]);
+            } else {
+                return None;
+            }
+        };
+        let contexts = contexts.as_array()?;
+        let contexts = contexts
+            .iter()
+            .filter_map(|v| v.as_str())
+            .map(|s| s.to_lowercase())
+            .filter(|s| CONTEXTS.contains(&s.as_str()))
+            .collect::<Vec<String>>();
+        (!contexts.is_empty()).then_some(contexts)
+    }
+}
+
+trait GetFeatures<'a> {
+    fn get_features(self) -> Option<Vec<String>>;
+}
+
+impl<'a> GetFeatures<'a> for &'a Vec<Value> {
+    fn get_features(self) -> Option<Vec<String>> {
+        let second = self.get(1)?;
+        let second = second.as_object()?;
+        let features = second.get("type")?;
+        if let Some(feature) = features.as_str() {
+            let feature = feature.to_lowercase();
+            if !CONTEXTS.contains(&feature.as_str()) {
+                return Some(vec![feature]);
+            } else {
+                return None;
+            }
+        };
+        let features = features.as_array()?;
+        let features = features
+            .iter()
+            .filter_map(|v| v.as_str())
+            .map(|s| s.to_lowercase())
+            .filter(|s| !CONTEXTS.contains(&s.as_str()))
+            .collect::<Vec<String>>();
+        (!features.is_empty()).then_some(features)
+    }
+}
+
+trait GetLangs<'a> {
+    fn get_langs(self) -> Option<Vec<Lang>>;
+}
+
+impl<'a> GetLangs<'a> for &'a [&'a Vec<Value>] {
+    fn get_langs(self) -> Option<Vec<Lang>> {
+        let langs = self
+            .iter()
+            .filter_map(|prop| {
+                let tag = (*prop).get_text()?;
+                let lang = Lang::builder()
+                    .tag(tag)
+                    .and_preference((*prop).get_preference())
+                    .build();
+                Some(lang)
+            })
+            .collect::<Vec<Lang>>();
+        (!langs.is_empty()).then_some(langs)
+    }
+}
+
+trait GetEmails<'a> {
+    fn get_emails(self) -> Option<Vec<Email>>;
+}
+
+impl<'a> GetEmails<'a> for &'a [&'a Vec<Value>] {
+    fn get_emails(self) -> Option<Vec<Email>> {
+        let emails = self
+            .iter()
+            .filter_map(|prop| {
+                let addr = (*prop).get_text()?;
+                let email = Email::builder()
+                    .email(addr)
+                    .contexts((*prop).get_contexts().unwrap_or_default())
+                    .and_preference((*prop).get_preference())
+                    .build();
+                Some(email)
+            })
+            .collect::<Vec<Email>>();
+        (!emails.is_empty()).then_some(emails)
+    }
+}
+
+trait GetPhones<'a> {
+    fn get_phones(self) -> Option<Vec<Phone>>;
+}
+
+impl<'a> GetPhones<'a> for &'a [&'a Vec<Value>] {
+    fn get_phones(self) -> Option<Vec<Phone>> {
+        let phones = self
+            .iter()
+            .filter_map(|prop| {
+                let number = (*prop).get_text()?;
+                let phone = Phone::builder()
+                    .phone(number)
+                    .features((*prop).get_features().unwrap_or_default())
+                    .contexts((*prop).get_contexts().unwrap_or_default())
+                    .and_preference((*prop).get_preference())
+                    .build();
+                Some(phone)
+            })
+            .collect::<Vec<Phone>>();
+        (!phones.is_empty()).then_some(phones)
+    }
+}
+
+trait GetPostalAddresses<'a> {
+    fn get_postal_addresses(self) -> Option<Vec<PostalAddress>>;
+}
+
+impl<'a> GetPostalAddresses<'a> for &'a [&'a Vec<Value>] {
+    fn get_postal_addresses(self) -> Option<Vec<PostalAddress>> {
+        let addrs = self
+            .iter()
+            .map(|prop| {
+                let mut postal_code: Option<String> = None;
+                let mut country_code: Option<String> = None;
+                let mut country_name: Option<String> = None;
+                let mut region_code: Option<String> = None;
+                let mut region_name: Option<String> = None;
+                let mut locality: Option<String> = None;
+                let mut street_parts: Vec<String> = vec![];
+                if let Some(fourth) = prop.get(3) {
+                    if let Some(addr) = fourth.as_array() {
+                        // the jcard address fields are in a different index of the array.
+                        //
+                        //   [
+                        //     "adr",
+                        //     {},
+                        //     "text",
+                        //     [
+                        //       "Mail Stop 3",   // post office box (not recommended for use)
+                        //       "Suite 3000",    // apartment or suite (not recommended for use)
+                        //       "123 Maple Ave", // street address
+                        //       "Quebec",        // locality or city name
+                        //       "QC",            // region (can be either a code or full name)
+                        //       "G1V 2M2",       // postal code
+                        //       "Canada"         // full country name
+                        //     ]
+                        //   ],
+                        if let Some(pobox) = addr.first() {
+                            if let Some(s) = pobox.as_str() {
+                                if !s.is_empty() {
+                                    street_parts.push(s.to_string())
+                                }
+                            }
+                        }
+                        if let Some(appt) = addr.get(1) {
+                            if let Some(s) = appt.as_str() {
+                                if !s.is_empty() {
+                                    street_parts.push(s.to_string())
+                                }
+                            }
+                        }
+                        if let Some(street) = addr.get(2) {
+                            if let Some(s) = street.as_str() {
+                                if !s.is_empty() {
+                                    street_parts.push(s.to_string())
+                                }
+                            } else if let Some(arry_s) = street.as_array() {
+                                arry_s
+                                    .iter()
+                                    .filter_map(|v| v.as_str())
+                                    .filter(|s| !s.is_empty())
+                                    .for_each(|s| street_parts.push(s.to_string()))
+                            }
+                        }
+                        if let Some(city) = addr.get(3) {
+                            if let Some(s) = city.as_str() {
+                                if !s.is_empty() {
+                                    locality = Some(s.to_string());
+                                }
+                            }
+                        }
+                        if let Some(region) = addr.get(4) {
+                            if let Some(s) = region.as_str() {
+                                if !s.is_empty() {
+                                    if s.len() == 2 && s.to_uppercase() == s {
+                                        region_code = Some(s.to_string())
+                                    } else {
+                                        region_name = Some(s.to_string())
+                                    }
+                                }
+                            }
+                        }
+                        if let Some(pc) = addr.get(5) {
+                            if let Some(s) = pc.as_str() {
+                                if !s.is_empty() {
+                                    postal_code = Some(s.to_string());
+                                }
+                            }
+                        }
+                        if let Some(country) = addr.get(6) {
+                            if let Some(s) = country.as_str() {
+                                if !s.is_empty() {
+                                    if s.len() == 2 && s.to_uppercase() == s {
+                                        country_code = Some(s.to_string())
+                                    } else {
+                                        country_name = Some(s.to_string())
+                                    }
+                                }
+                            }
+                        }
+                    }
+                };
+                let street_parts = (!street_parts.is_empty()).then_some(street_parts);
+                PostalAddress::builder()
+                    .and_full_address((*prop).get_label())
+                    .contexts((*prop).get_contexts().unwrap_or_default())
+                    .and_preference((*prop).get_preference())
+                    .and_country_code(country_code)
+                    .and_country_name(country_name)
+                    .and_postal_code(postal_code)
+                    .and_region_name(region_name)
+                    .and_region_code(region_code)
+                    .and_locality(locality)
+                    .street_parts(street_parts.unwrap_or_default())
+                    .build()
+            })
+            .collect::<Vec<PostalAddress>>();
+        (!addrs.is_empty()).then_some(addrs)
+    }
+}
+
+trait GetNameParts<'a> {
+    fn get_name_parts(self) -> Option<NameParts>;
+}
+
+impl<'a> GetNameParts<'a> for Option<&'a Vec<Value>> {
+    fn get_name_parts(self) -> Option<NameParts> {
+        let values = self?;
+        let fourth = values.get(3)?;
+        let parts = fourth.as_array()?;
+        let mut iter = parts.iter().filter(|p| p.is_string() || p.is_array());
+        let mut prefixes: Option<Vec<String>> = None;
+        let mut surnames: Option<Vec<String>> = None;
+        let mut given_names: Option<Vec<String>> = None;
+        let mut middle_names: Option<Vec<String>> = None;
+        let mut suffixes: Option<Vec<String>> = None;
+        if let Some(e) = iter.next() {
+            surnames = get_string_or_vec(e);
+        };
+        if let Some(e) = iter.next() {
+            given_names = get_string_or_vec(e);
+        };
+        if let Some(e) = iter.next() {
+            middle_names = get_string_or_vec(e);
+        };
+        if let Some(e) = iter.next() {
+            prefixes = get_string_or_vec(e);
+        };
+        if let Some(e) = iter.next() {
+            suffixes = get_string_or_vec(e);
+        };
+        let name_parts = NameParts::builder()
+            .surnames(surnames.unwrap_or_default())
+            .prefixes(prefixes.unwrap_or_default())
+            .given_names(given_names.unwrap_or_default())
+            .middle_names(middle_names.unwrap_or_default())
+            .suffixes(suffixes.unwrap_or_default())
+            .build();
+        if name_parts.surnames.is_none()
+            && name_parts.given_names.is_none()
+            && name_parts.middle_names.is_none()
+            && name_parts.suffixes.is_none()
+            && name_parts.prefixes.is_none()
+        {
+            None
+        } else {
+            Some(name_parts)
+        }
+    }
+}
+
+fn get_string_or_vec(value: &Value) -> Option<Vec<String>> {
+    if let Some(e) = value.as_str() {
+        if e.is_empty() {
+            return None;
+        } else {
+            return Some(vec![e.to_string()]);
+        };
+    };
+    if let Some(e) = value.as_array() {
+        let strings = e
+            .iter()
+            .filter_map(|e| e.as_str())
+            .filter(|s| !s.is_empty())
+            .map(|s| s.to_string())
+            .collect::<Vec<String>>();
+        return (!strings.is_empty()).then_some(strings);
+    };
+    None
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use serde_json::Value;
+
+    use crate::contact::{Contact, NameParts};
+
+    #[test]
+    fn GIVEN_vcard_WHEN_from_vcard_THEN_properties_are_correct() {
+        // GIVEN
+        let vcard = r#"
+          [
+            "vcard",
+            [
+              ["version", {}, "text", "4.0"],
+              ["fn", {}, "text", "Joe User"],
+              ["n", {}, "text",
+                ["User", "Joe", "", "", ["ing. jr", "M.Sc."]]
+              ],
+              ["kind", {}, "text", "individual"],
+              ["lang", {
+                "pref":"1"
+              }, "language-tag", "fr"],
+              ["lang", {
+                "pref":"2"
+              }, "language-tag", "en"],
+              ["org", {
+                "type":"work"
+              }, "text", "Example"],
+              ["title", {}, "text", "Research Scientist"],
+              ["role", {}, "text", "Project Lead"],
+              ["adr",
+                { "type":"work" },
+                "text",
+                [
+                  "",
+                  "Suite 1234",
+                  "4321 Rue Somewhere",
+                  "Quebec",
+                  "QC",
+                  "G1V 2M2",
+                  "Canada"
+                ]
+              ],
+              ["adr",
+                {
+                  "type":"home",
+                  "label":"123 Maple Ave\nSuite 90001\nVancouver\nBC\n1239\n"
+                },
+                "text",
+                [
+                  "", "", "", "", "", "", ""
+                ]
+              ],
+              ["tel",
+                {
+                  "type":["work", "voice"],
+                  "pref":"1"
+                },
+                "uri",
+                "tel:+1-555-555-1234;ext=102"
+              ],
+              ["tel",
+                { "type":["work", "cell", "voice", "video", "text"] },
+                "uri",
+                "tel:+1-555-555-4321"
+              ],
+              ["email",
+                { "type":"work" },
+                "text",
+                "joe.user@example.com"
+              ],
+              ["geo", {
+                "type":"work"
+              }, "uri", "geo:46.772673,-71.282945"],
+              ["key",
+                { "type":"work" },
+                "uri",
+                "https://www.example.com/joe.user/joe.asc"
+              ],
+              ["tz", {},
+                "utc-offset", "-05:00"],
+              ["contact-uri", {},
+                "uri",
+                "https://example.com/contact-form"
+              ],
+              ["url", {},
+                "uri",
+                "https://example.com/some-url"
+              ]
+            ]
+          ]
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<Vec<Value>>(vcard);
+
+        // THEN
+        let actual = actual.expect("parsing vcard");
+        let actual = Contact::from_vcard(&actual).expect("vcard not found");
+
+        // full name
+        assert_eq!(actual.full_name.expect("full_name not found"), "Joe User");
+
+        // kind
+        assert_eq!(actual.kind.expect("kind not found"), "individual");
+
+        // titles
+        assert_eq!(
+            actual
+                .titles
+                .expect("no titles")
+                .first()
+                .expect("titles empty"),
+            "Research Scientist"
+        );
+
+        // roles
+        assert_eq!(
+            actual
+                .roles
+                .expect("no roles")
+                .first()
+                .expect("roles empty"),
+            "Project Lead"
+        );
+
+        // organization names
+        assert_eq!(
+            actual
+                .organization_names
+                .expect("no organization_names")
+                .first()
+                .expect("organization_names empty"),
+            "Example"
+        );
+
+        // nick names
+        assert!(actual.nick_names.is_none());
+
+        // langs
+        let Some(langs) = actual.langs else {
+            panic!("langs not found")
+        };
+        assert_eq!(langs.len(), 2);
+        assert_eq!(langs.first().expect("first lang").tag, "fr");
+        assert_eq!(langs.first().expect("first lang").preference, Some(1));
+        assert_eq!(langs.get(1).expect("second lang").tag, "en");
+        assert_eq!(langs.get(1).expect("second lang").preference, Some(2));
+
+        // emails
+        let Some(emails) = actual.emails else {
+            panic!("emails not found")
+        };
+        let Some(email) = emails.first() else {
+            panic!("no email found")
+        };
+        assert_eq!(email.email, "joe.user@example.com");
+        assert!(email
+            .contexts
+            .as_ref()
+            .expect("contexts not found")
+            .contains(&"work".to_string()));
+
+        // phones
+        let Some(phones) = actual.phones else {
+            panic!("no phones found")
+        };
+        let Some(phone) = phones.first() else {
+            panic!("no first phone")
+        };
+        assert_eq!(phone.phone, "tel:+1-555-555-1234;ext=102");
+        assert!(phone
+            .contexts
+            .as_ref()
+            .expect("no contexts")
+            .contains(&"work".to_string()));
+        assert!(phone
+            .features
+            .as_ref()
+            .expect("no features")
+            .contains(&"voice".to_string()));
+        let Some(phone) = phones.last() else {
+            panic!("no last phone")
+        };
+        assert_eq!(phone.phone, "tel:+1-555-555-4321");
+        assert!(phone
+            .contexts
+            .as_ref()
+            .expect("no contexts")
+            .contains(&"cell".to_string()));
+        assert!(phone
+            .features
+            .as_ref()
+            .expect("no features")
+            .contains(&"video".to_string()));
+
+        // postal addresses
+        let Some(addresses) = actual.postal_addresses else {
+            panic!("no postal addresses")
+        };
+        let Some(addr) = addresses.first() else {
+            panic!("first address not found")
+        };
+        assert!(addr
+            .contexts
+            .as_ref()
+            .expect("no contexts")
+            .contains(&"work".to_string()));
+        let Some(street_parts) = &addr.street_parts else {
+            panic!("no street parts")
+        };
+        assert_eq!(street_parts.first().expect("street part 0"), "Suite 1234");
+        assert_eq!(
+            street_parts.get(1).expect("street part 1"),
+            "4321 Rue Somewhere"
+        );
+        assert_eq!(addr.country_name.as_ref().expect("country name"), "Canada");
+        assert!(addr.country_code.is_none());
+        assert_eq!(addr.region_code.as_ref().expect("region code"), "QC");
+        assert!(addr.region_name.is_none());
+        assert_eq!(addr.postal_code.as_ref().expect("postal code"), "G1V 2M2");
+        let Some(addr) = addresses.last() else {
+            panic!("last address not found")
+        };
+        assert!(addr
+            .contexts
+            .as_ref()
+            .expect("no contexts")
+            .contains(&"home".to_string()));
+        assert_eq!(
+            addr.full_address.as_ref().expect("full address not foudn"),
+            "123 Maple Ave\nSuite 90001\nVancouver\nBC\n1239\n"
+        );
+
+        // name parts
+        let Some(name_parts) = actual.name_parts else {
+            panic!("no name parts")
+        };
+        let expected = NameParts::builder()
+            .surnames(vec!["User".to_string()])
+            .given_names(vec!["Joe".to_string()])
+            .suffixes(vec!["ing. jr".to_string(), "M.Sc.".to_string()])
+            .build();
+        assert_eq!(name_parts, expected);
+
+        // contact-uris
+        assert_eq!(
+            actual
+                .contact_uris
+                .expect("no contact-uris")
+                .first()
+                .expect("contact-uris empty"),
+            "https://example.com/contact-form"
+        );
+
+        // urls
+        assert_eq!(
+            actual
+                .urls
+                .expect("no urls")
+                .first()
+                .expect("urls are empty"),
+            "https://example.com/some-url"
+        );
+    }
+
+    #[test]
+    fn GIVEN_vcard_with_addr_street_array_WHEN_from_vcard_THEN_properties_are_correct() {
+        // GIVEN
+        let vcard = r#"
+          [
+            "vcard",
+            [
+              ["version", {}, "text", "4.0"],
+              ["fn", {}, "text", "Joe User"],
+              ["adr",
+                { "type":"work" },
+                "text",
+                [
+                  "",
+                  "Suite 1234",
+                  ["4321 Rue Blue", "1, Gawwn"],
+                  "Quebec",
+                  "QC",
+                  "G1V 2M2",
+                  "Canada"
+                ]
+              ]
+            ]
+          ]
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<Vec<Value>>(vcard);
+
+        // THEN
+        let actual = actual.expect("parsing vcard");
+        let actual = Contact::from_vcard(&actual).expect("vcard not found");
+
+        // full name
+        assert_eq!(actual.full_name.expect("full_name not found"), "Joe User");
+
+        // postal addresses
+        let Some(addresses) = actual.postal_addresses else {
+            panic!("no postal addresses")
+        };
+        let Some(addr) = addresses.first() else {
+            panic!("first address not found")
+        };
+        assert!(addr
+            .contexts
+            .as_ref()
+            .expect("no contexts")
+            .contains(&"work".to_string()));
+        let Some(street_parts) = &addr.street_parts else {
+            panic!("no street parts")
+        };
+        assert_eq!(street_parts.first().expect("street part 0"), "Suite 1234");
+        assert_eq!(street_parts.get(1).expect("street part 1"), "4321 Rue Blue");
+        assert_eq!(street_parts.get(2).expect("street part 2"), "1, Gawwn");
+        assert_eq!(addr.country_name.as_ref().expect("country name"), "Canada");
+        assert!(addr.country_code.is_none());
+        assert_eq!(addr.region_code.as_ref().expect("region code"), "QC");
+        assert!(addr.region_name.is_none());
+        assert_eq!(addr.postal_code.as_ref().expect("postal code"), "G1V 2M2");
+    }
+}

icann-rdap-common/src/contact/mod.rs

@@ -0,0 +1,486 @@
+//! Easy representation of contact information found in an Entity.
+//!
+//! This module converts contact information to and from vCard/jCard, which is hard to
+//! work with directly. It is also intended as a way of bridging the between vCard/jCard
+//! and any new contact model.
+//!
+//! This struct can be built using the builder.
+//!
+//! ```rust
+//! use icann_rdap_common::contact::Contact;
+//!
+//! let contact = Contact::builder()
+//!   .kind("individual")
+//!   .full_name("Bob Smurd")
+//!   .build();
+//! ```
+//!
+//! Once built, a Contact struct can be converted to an array of [serde_json::Value]'s,
+//! which can be used with serde to serialize to JSON.
+//!
+//! ```rust
+//! use icann_rdap_common::contact::Contact;
+//! use serde::Serialize;
+//! use serde_json::Value;
+//!
+//! let contact = Contact::builder()
+//!   .kind("individual")
+//!   .full_name("Bob Smurd")
+//!   .build();
+//!
+//! let v = contact.to_vcard();
+//! let json = serde_json::to_string(&v);
+//! ```
+//!
+//! To deserialize, use the `from_vcard` function.
+//!
+//! ```rust
+//! use icann_rdap_common::contact::Contact;
+//! use serde::Deserialize;
+//! use serde_json::Value;
+//!
+//! let json = r#"
+//! [
+//!   "vcard",
+//!   [
+//!     ["version", {}, "text", "4.0"],
+//!     ["fn", {}, "text", "Joe User"],
+//!     ["kind", {}, "text", "individual"],
+//!     ["org", {
+//!       "type":"work"
+//!     }, "text", "Example"],
+//!     ["title", {}, "text", "Research Scientist"],
+//!     ["role", {}, "text", "Project Lead"],
+//!     ["adr",
+//!       { "type":"work" },
+//!       "text",
+//!       [
+//!         "",
+//!         "Suite 1234",
+//!         "4321 Rue Somewhere",
+//!         "Quebec",
+//!         "QC",
+//!         "G1V 2M2",
+//!         "Canada"
+//!       ]
+//!     ],
+//!     ["tel",
+//!       { "type":["work", "voice"], "pref":"1" },
+//!       "uri", "tel:+1-555-555-1234;ext=102"
+//!     ],
+//!     ["email",
+//!       { "type":"work" },
+//!       "text", "joe.user@example.com"
+//!     ]
+//!   ]
+//! ]"#;
+//!
+//! let data: Vec<Value> = serde_json::from_str(json).unwrap();
+//! let contact = Contact::from_vcard(&data);
+//! ```
+
+mod from_vcard;
+mod to_vcard;
+
+use std::fmt::Display;
+
+use buildstructor::Builder;
+
+use crate::prelude::to_opt_vec;
+
+/// Represents a contact. This more closely represents an EPP Contact with some
+/// things taken from JSContact.
+///
+/// Using the builder to create the Contact:
+/// ```rust
+/// use icann_rdap_common::contact::Contact;
+///
+/// let contact = Contact::builder()
+///   .kind("individual")
+///   .full_name("Bob Smurd")
+///   .build();
+/// ```
+///
+///
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Contact {
+    /// Preferred languages.
+    pub langs: Option<Vec<Lang>>,
+
+    /// The kind such as individual, company, etc...
+    pub kind: Option<String>,
+
+    /// Full name of the contact.
+    pub full_name: Option<String>,
+
+    /// Structured parts of the name.
+    pub name_parts: Option<NameParts>,
+
+    /// Nick names.
+    pub nick_names: Option<Vec<String>>,
+
+    /// Titles.
+    pub titles: Option<Vec<String>>,
+
+    /// Organizational Roles
+    pub roles: Option<Vec<String>>,
+
+    /// Organization names.
+    pub organization_names: Option<Vec<String>>,
+
+    /// Postal addresses.
+    pub postal_addresses: Option<Vec<PostalAddress>>,
+
+    /// Email addresses.
+    pub emails: Option<Vec<Email>>,
+
+    /// Phone numbers.
+    pub phones: Option<Vec<Phone>>,
+
+    /// Contact URIs.
+    pub contact_uris: Option<Vec<String>>,
+
+    /// URLs
+    pub urls: Option<Vec<String>>,
+}
+
+#[buildstructor::buildstructor]
+impl Contact {
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new(
+        langs: Vec<Lang>,
+        kind: Option<String>,
+        full_name: Option<String>,
+        name_parts: Option<NameParts>,
+        nick_names: Vec<String>,
+        titles: Vec<String>,
+        roles: Vec<String>,
+        organization_names: Vec<String>,
+        postal_addresses: Vec<PostalAddress>,
+        emails: Vec<Email>,
+        phones: Vec<Phone>,
+        contact_uris: Vec<String>,
+        urls: Vec<String>,
+    ) -> Self {
+        Self {
+            langs: to_opt_vec(langs),
+            kind,
+            full_name,
+            name_parts,
+            nick_names: to_opt_vec(nick_names),
+            titles: to_opt_vec(titles),
+            roles: to_opt_vec(roles),
+            organization_names: to_opt_vec(organization_names),
+            postal_addresses: to_opt_vec(postal_addresses),
+            emails: to_opt_vec(emails),
+            phones: to_opt_vec(phones),
+            contact_uris: to_opt_vec(contact_uris),
+            urls: to_opt_vec(urls),
+        }
+    }
+
+    /// Returns false if there is data in the Contact.
+    pub fn is_non_empty(&self) -> bool {
+        self.langs.is_some()
+            || self.kind.is_some()
+            || self.full_name.is_some()
+            || self.name_parts.is_some()
+            || self.nick_names.is_some()
+            || self.titles.is_some()
+            || self.roles.is_some()
+            || self.organization_names.is_some()
+            || self.postal_addresses.is_some()
+            || self.emails.is_some()
+            || self.phones.is_some()
+            || self.contact_uris.is_some()
+            || self.urls.is_some()
+    }
+
+    /// Set the set of emails.
+    pub fn set_emails(mut self, emails: &[impl ToString]) -> Self {
+        let emails: Vec<Email> = emails
+            .iter()
+            .map(|e| Email::builder().email(e.to_string()).build())
+            .collect();
+        self.emails = (!emails.is_empty()).then_some(emails);
+        self
+    }
+
+    /// Add a voice phone to the set of phones.
+    pub fn add_voice_phones(mut self, phones: &[impl ToString]) -> Self {
+        let mut phones: Vec<Phone> = phones
+            .iter()
+            .map(|p| {
+                Phone::builder()
+                    .contexts(vec!["voice".to_string()])
+                    .phone(p.to_string())
+                    .build()
+            })
+            .collect();
+        if let Some(mut self_phones) = self.phones.clone() {
+            phones.append(&mut self_phones);
+        } else {
+            self.phones = (!phones.is_empty()).then_some(phones);
+        }
+        self
+    }
+
+    /// Add a facsimile phone to the set of phones.
+    pub fn add_fax_phones(mut self, phones: &[impl ToString]) -> Self {
+        let mut phones: Vec<Phone> = phones
+            .iter()
+            .map(|p| {
+                Phone::builder()
+                    .contexts(vec!["fax".to_string()])
+                    .phone(p.to_string())
+                    .build()
+            })
+            .collect();
+        if let Some(mut self_phones) = self.phones.clone() {
+            phones.append(&mut self_phones);
+        } else {
+            self.phones = (!phones.is_empty()).then_some(phones);
+        }
+        self
+    }
+
+    /// Set the set of postal addresses to only be the passed in postal address.
+    pub fn set_postal_address(mut self, postal_address: PostalAddress) -> Self {
+        self.postal_addresses = Some(vec![postal_address]);
+        self
+    }
+}
+
+/// The language preference of the contact.
+#[derive(Debug, Builder, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Lang {
+    /// The ordinal of the preference for this language.
+    pub preference: Option<u64>,
+
+    /// RFC 5646 language tag.
+    pub tag: String,
+}
+
+impl Display for Lang {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        if let Some(pref) = self.preference {
+            write!(f, "{} (pref: {})", self.tag, pref)
+        } else {
+            f.write_str(&self.tag)
+        }
+    }
+}
+
+/// Name parts of a name.
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct NameParts {
+    /// Name prefixes.
+    pub prefixes: Option<Vec<String>>,
+
+    /// Surnames or last names.
+    pub surnames: Option<Vec<String>>,
+
+    /// Middle names.
+    pub middle_names: Option<Vec<String>>,
+
+    /// Given or first names.
+    pub given_names: Option<Vec<String>>,
+
+    /// Name suffixes.
+    pub suffixes: Option<Vec<String>>,
+}
+
+#[buildstructor::buildstructor]
+impl NameParts {
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new(
+        prefixes: Vec<String>,
+        surnames: Vec<String>,
+        middle_names: Vec<String>,
+        given_names: Vec<String>,
+        suffixes: Vec<String>,
+    ) -> Self {
+        Self {
+            prefixes: to_opt_vec(prefixes),
+            surnames: to_opt_vec(surnames),
+            middle_names: to_opt_vec(middle_names),
+            given_names: to_opt_vec(given_names),
+            suffixes: to_opt_vec(suffixes),
+        }
+    }
+}
+
+/// A postal address.
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct PostalAddress {
+    /// Preference of this address in relation to others.
+    pub preference: Option<u64>,
+
+    /// Work, home, etc.... Known as "type" in JCard.
+    pub contexts: Option<Vec<String>>,
+
+    /// An unstructured address. An unstructured postal address is
+    /// usually the complete postal address. That is, this string
+    /// would contain the street address, country, region, postal code, etc...
+    ///
+    /// Depending on how the postal address is given, it can either
+    /// be structured or unstructured. If it is given as unstructured,
+    /// then this value is populated.
+    ///
+    /// It is possible that a single postal address is given as both,
+    /// in which case this value is populated along with the other
+    /// values of the postal address.   
+    pub full_address: Option<String>,
+
+    /// Invidual street lines.
+    pub street_parts: Option<Vec<String>>,
+
+    /// City name, county name, etc...
+    pub locality: Option<String>,
+
+    /// Name of region (i.e. state, province, etc...).
+    pub region_name: Option<String>,
+
+    /// Code for region.
+    pub region_code: Option<String>,
+
+    /// Name of the country.
+    pub country_name: Option<String>,
+
+    /// Code of the country.
+    pub country_code: Option<String>,
+
+    /// Postal code.
+    pub postal_code: Option<String>,
+}
+
+#[buildstructor::buildstructor]
+impl PostalAddress {
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new(
+        preference: Option<u64>,
+        contexts: Vec<String>,
+        full_address: Option<String>,
+        street_parts: Vec<String>,
+        locality: Option<String>,
+        region_name: Option<String>,
+        region_code: Option<String>,
+        country_name: Option<String>,
+        country_code: Option<String>,
+        postal_code: Option<String>,
+    ) -> Self {
+        Self {
+            preference,
+            contexts: to_opt_vec(contexts),
+            full_address,
+            street_parts: to_opt_vec(street_parts),
+            locality,
+            region_name,
+            region_code,
+            country_name,
+            country_code,
+            postal_code,
+        }
+    }
+}
+
+/// Represents an email address.
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Email {
+    /// Preference of this email in relation to others.
+    pub preference: Option<u64>,
+
+    /// Work, home, etc.... Known as "type" in JCard.
+    pub contexts: Option<Vec<String>>,
+
+    /// The email address.
+    pub email: String,
+}
+
+#[buildstructor::buildstructor]
+impl Email {
+    #[builder(visibility = "pub")]
+    fn new(preference: Option<u64>, contexts: Vec<String>, email: String) -> Self {
+        Self {
+            preference,
+            contexts: to_opt_vec(contexts),
+            email,
+        }
+    }
+}
+
+impl Display for Email {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let mut qualifiers = vec![];
+        if let Some(pref) = self.preference {
+            qualifiers.push(format!("(pref: {pref})"));
+        }
+        if let Some(contexts) = &self.contexts {
+            qualifiers.push(format!("({})", contexts.join(",")));
+        }
+        let qualifiers = qualifiers.join(" ");
+        if qualifiers.is_empty() {
+            f.write_str(&self.email)
+        } else {
+            write!(f, "{} {}", &self.email, qualifiers)
+        }
+    }
+}
+
+/// Represents phone number.
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Phone {
+    /// Preference of this phone in relation to others.
+    pub preference: Option<u64>,
+
+    /// Work, home, etc.... Known as "type" in JCard.
+    pub contexts: Option<Vec<String>>,
+
+    /// The phone number.
+    pub phone: String,
+
+    /// Features (voice, fax, etc...)
+    pub features: Option<Vec<String>>,
+}
+
+#[buildstructor::buildstructor]
+impl Phone {
+    #[builder(visibility = "pub")]
+    fn new(
+        preference: Option<u64>,
+        contexts: Vec<String>,
+        phone: String,
+        features: Vec<String>,
+    ) -> Self {
+        Self {
+            preference,
+            contexts: to_opt_vec(contexts),
+            phone,
+            features: to_opt_vec(features),
+        }
+    }
+}
+
+impl Display for Phone {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let mut qualifiers = vec![];
+        if let Some(pref) = self.preference {
+            qualifiers.push(format!("(pref: {pref})"));
+        }
+        if let Some(contexts) = &self.contexts {
+            qualifiers.push(format!("({})", contexts.join(",")));
+        }
+        if let Some(features) = &self.features {
+            qualifiers.push(format!("({})", features.join(",")));
+        }
+        let qualifiers = qualifiers.join(" ");
+        if qualifiers.is_empty() {
+            f.write_str(&self.phone)
+        } else {
+            write!(f, "{} {}", &self.phone, qualifiers)
+        }
+    }
+}

icann-rdap-common/src/contact/to_vcard.rs

@@ -0,0 +1,303 @@
+//! Convert a Contact to jCard/vCard.
+use std::str::FromStr;
+
+use serde_json::{json, Map, Value};
+
+use super::Contact;
+
+impl Contact {
+    /// Output the Contact data as vCard in JSON values ([`Vec<Value>`]).
+    ///
+    /// ```rust
+    /// use icann_rdap_common::contact::Contact;
+    /// use serde::Serialize;
+    /// use serde_json::Value;
+    ///
+    /// let contact = Contact::builder()
+    ///   .kind("individual")
+    ///   .full_name("Bob Smurd")
+    ///   .build();
+    ///
+    /// let v = contact.to_vcard();
+    /// let json = serde_json::to_string(&v);
+    /// ```
+    pub fn to_vcard(&self) -> Vec<Value> {
+        // start the vcard with the version.
+        let mut vcard: Vec<Value> = vec![json!(["version", {}, "text", "4.0"])];
+
+        if let Some(full_name) = &self.full_name {
+            vcard.push(json!(["fn", {}, "text", full_name]));
+        }
+
+        if let Some(name_parts) = &self.name_parts {
+            let surnames = vec_string_to_value(&name_parts.surnames);
+            let given_names = vec_string_to_value(&name_parts.given_names);
+            let middle_names = vec_string_to_value(&name_parts.middle_names);
+            let prefixes = vec_string_to_value(&name_parts.prefixes);
+            let suffixes = vec_string_to_value(&name_parts.suffixes);
+            vcard.push(json!([
+                "n",
+                {},
+                "text",
+                [surnames, given_names, middle_names, prefixes, suffixes]
+            ]));
+        }
+
+        if let Some(kind) = &self.kind {
+            vcard.push(json!(["kind", {}, "text", kind]));
+        }
+
+        if let Some(langs) = &self.langs {
+            for lang in langs {
+                let mut params: Map<String, Value> = Map::new();
+                if let Some(pref) = lang.preference {
+                    params.insert("pref".to_string(), Value::String(pref.to_string()));
+                }
+                vcard.push(json!([
+                    "lang",
+                    Value::from(params),
+                    "language-tag",
+                    lang.tag
+                ]))
+            }
+        }
+
+        if let Some(org_names) = &self.organization_names {
+            for org_name in org_names {
+                vcard.push(json!(["org", {}, "text", org_name]));
+            }
+        }
+
+        if let Some(titles) = &self.titles {
+            for title in titles {
+                vcard.push(json!(["title", {}, "text", title]));
+            }
+        }
+
+        if let Some(roles) = &self.roles {
+            for role in roles {
+                vcard.push(json!(["role", {}, "text", role]));
+            }
+        }
+
+        if let Some(nick_names) = &self.nick_names {
+            for nick_name in nick_names {
+                vcard.push(json!(["nickname", {}, "text", nick_name]));
+            }
+        }
+
+        if let Some(emails) = &self.emails {
+            for email in emails {
+                let mut params: Map<String, Value> = Map::new();
+                if let Some(pref) = email.preference {
+                    params.insert("pref".to_string(), Value::String(pref.to_string()));
+                }
+                if let Some(contexts) = email.contexts.as_ref() {
+                    params.insert("type".to_string(), vec_string_to_param(contexts));
+                }
+                vcard.push(json!(["email", Value::from(params), "text", email.email]))
+            }
+        }
+
+        if let Some(phones) = &self.phones {
+            for phone in phones {
+                let mut params: Map<String, Value> = Map::new();
+                if let Some(pref) = phone.preference {
+                    params.insert("pref".to_string(), Value::String(pref.to_string()));
+                }
+                let mut types: Vec<String> = vec![];
+                if let Some(contexts) = &phone.contexts {
+                    types.append(&mut contexts.clone());
+                }
+                if let Some(features) = &phone.features {
+                    types.append(&mut features.clone());
+                }
+                params.insert("type".to_string(), vec_string_to_param(&types));
+                vcard.push(json!(["tel", Value::from(params), "text", phone.phone]))
+            }
+        }
+
+        if let Some(addrs) = &self.postal_addresses {
+            for addr in addrs {
+                let mut params: Map<String, Value> = Map::new();
+                if let Some(pref) = addr.preference {
+                    params.insert("pref".to_string(), Value::String(pref.to_string()));
+                }
+                if let Some(contexts) = addr.contexts.as_ref() {
+                    params.insert("type".to_string(), vec_string_to_param(contexts));
+                }
+                if let Some(full_address) = &addr.full_address {
+                    params.insert(
+                        "label".to_string(),
+                        Value::from_str(full_address).expect("serializing full address"),
+                    );
+                }
+                let mut lines: Vec<String> = vec![];
+                if let Some(street_parts) = &addr.street_parts {
+                    lines.push(street_parts.first().cloned().unwrap_or("".to_string()));
+                    lines.push(street_parts.get(1).cloned().unwrap_or("".to_string()));
+                    lines.push(street_parts.get(2).cloned().unwrap_or("".to_string()));
+                } else {
+                    lines.push("".to_string());
+                    lines.push("".to_string());
+                    lines.push("".to_string());
+                }
+                if let Some(locality) = &addr.locality {
+                    lines.push(locality.to_owned());
+                } else {
+                    lines.push("".to_string());
+                }
+                if let Some(region_name) = &addr.region_name {
+                    lines.push(region_name.to_owned());
+                } else if let Some(region_code) = &addr.region_code {
+                    lines.push(region_code.to_owned());
+                } else {
+                    lines.push("".to_string());
+                }
+                if let Some(postal_code) = &addr.postal_code {
+                    lines.push(postal_code.to_owned());
+                } else {
+                    lines.push("".to_string());
+                }
+                if let Some(country_name) = &addr.country_name {
+                    lines.push(country_name.to_owned());
+                } else if let Some(country_code) = &addr.country_code {
+                    lines.push(country_code.to_owned());
+                } else {
+                    lines.push("".to_string());
+                }
+                vcard.push(json!(["adr", Value::from(params), "text", lines]))
+            }
+        }
+
+        if let Some(contact_uris) = &self.contact_uris {
+            for uri in contact_uris {
+                vcard.push(json!(["contact-uri", {}, "uri", uri]));
+            }
+        }
+
+        if let Some(urls) = &self.urls {
+            for url in urls {
+                vcard.push(json!(["url", {}, "uri", url]));
+            }
+        }
+
+        // return the vcard array
+        vec![Value::String("vcard".to_string()), Value::from(vcard)]
+    }
+}
+
+fn vec_string_to_value(strings: &Option<Vec<String>>) -> Value {
+    let Some(strings) = strings else {
+        return Value::String("".to_string());
+    };
+
+    if strings.is_empty() {
+        return Value::String("".to_string());
+    };
+
+    if strings.len() == 1 {
+        let Some(one) = strings.first() else {
+            panic!("couldn't get first element on length of 1")
+        };
+        return Value::String(one.to_owned());
+    };
+
+    // else
+    Value::from(strings.clone())
+}
+
+fn vec_string_to_param(strings: &[String]) -> Value {
+    if strings.is_empty() {
+        return Value::String("".to_string());
+    };
+
+    if strings.len() == 1 {
+        let Some(one) = strings.first() else {
+            panic!("couldn't get first element on length of 1")
+        };
+        return Value::String(one.to_owned());
+    };
+
+    // else
+    Value::from(strings)
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use crate::contact::{Contact, Email, Lang, NameParts, Phone, PostalAddress};
+
+    #[test]
+    fn GIVEN_contact_WHEN_to_vcard_THEN_from_vcard_is_same() {
+        // GIVEN
+        let contact = Contact::builder()
+            .full_name("Joe User")
+            .name_parts(
+                NameParts::builder()
+                    .surnames(vec!["User".to_string()])
+                    .given_names(vec!["Joe".to_string()])
+                    .suffixes(vec!["ing. jr".to_string(), "M.Sc.".to_string()])
+                    .build(),
+            )
+            .kind("individual")
+            .langs(vec![
+                Lang::builder().preference(1).tag("fr").build(),
+                Lang::builder().preference(2).tag("en").build(),
+            ])
+            .organization_names(vec!["Example".to_string()])
+            .titles(vec!["Research Scientist".to_string()])
+            .roles(vec!["Project Lead".to_string()])
+            .contact_uris(vec!["https://example.com/contact-form".to_string()])
+            .postal_addresses(vec![PostalAddress::builder()
+                .country_name("Canada")
+                .postal_code("G1V 2M2")
+                .region_code("QC")
+                .locality("Quebec")
+                .street_parts(vec![
+                    "Suite 1234".to_string(),
+                    "4321 Rue Somewhere".to_string(),
+                ])
+                .build()])
+            .phones(vec![
+                Phone::builder()
+                    .preference(1)
+                    .contexts(vec!["work".to_string()])
+                    .features(vec!["voice".to_string()])
+                    .phone("tel:+1-555-555-1234;ext=102")
+                    .build(),
+                Phone::builder()
+                    .contexts(vec!["work".to_string(), "cell".to_string()])
+                    .features(vec![
+                        "voice".to_string(),
+                        "video".to_string(),
+                        "text".to_string(),
+                    ])
+                    .phone("tel:+1-555-555-4321")
+                    .build(),
+            ])
+            .emails(vec![Email::builder()
+                .contexts(vec!["work".to_string()])
+                .email("joe.user@example.com")
+                .build()])
+            .urls(vec!["https://example.com/some-url".to_string()])
+            .build();
+
+        // WHEN
+        let actual = Contact::from_vcard(&contact.to_vcard()).expect("from vcard");
+
+        // THEN
+        assert_eq!(contact.full_name, actual.full_name);
+        assert_eq!(contact.name_parts, actual.name_parts);
+        assert_eq!(contact.kind, actual.kind);
+        assert_eq!(contact.langs, actual.langs);
+        assert_eq!(contact.organization_names, actual.organization_names);
+        assert_eq!(contact.titles, actual.titles);
+        assert_eq!(contact.roles, actual.roles);
+        assert_eq!(contact.postal_addresses, actual.postal_addresses);
+        assert_eq!(contact.phones, actual.phones);
+        assert_eq!(contact.emails, actual.emails);
+        assert_eq!(contact.contact_uris, actual.contact_uris);
+        assert_eq!(contact.urls, actual.urls);
+    }
+}

icann-rdap-common/src/dns_types.rs

@@ -0,0 +1,320 @@
+//! DNS and DNSSEC types.
+
+use std::str::{Chars, FromStr};
+
+use {idna::domain_to_ascii, thiserror::Error};
+
+use crate::check::StringCheck;
+
+/// Errors when determining DNS information.
+#[derive(Debug, Error)]
+pub enum DnsTypeError {
+    #[error("Invalid DNS Algorithm")]
+    InvalidAlgorithm,
+    #[error("Invalid DNS Digest")]
+    InvalidDigest,
+}
+
+/// Information about DNSSEC Algorithm.
+pub struct DnsAlgorithm {
+    pub number: u8,
+    pub mnemonic: &'static str,
+    pub zone_signing: bool,
+    pub transaction_signing: bool,
+}
+
+/// DNS Algorithm Variants.
+pub enum DnsAlgorithmType {
+    DeleteDs(DnsAlgorithm),
+    RsaMd5(DnsAlgorithm),
+    DiffieHellman(DnsAlgorithm),
+    Dsa(DnsAlgorithm),
+    RsaSha1(DnsAlgorithm),
+    DsaNsec3Sha1(DnsAlgorithm),
+    RsaSha1Nsec3Sha1(DnsAlgorithm),
+    RsaSha256(DnsAlgorithm),
+    RsaSha512(DnsAlgorithm),
+    EccGost(DnsAlgorithm),
+    EcdsaP256Sha256(DnsAlgorithm),
+    EcdsaP384Sha384(DnsAlgorithm),
+    Ed25519(DnsAlgorithm),
+    Ed448(DnsAlgorithm),
+    PrivateDns(DnsAlgorithm),
+    PrivateOid(DnsAlgorithm),
+}
+
+impl DnsAlgorithmType {
+    /// Convert an algorithm number to a [DnsAlgorithmType].
+    pub fn from_number(number: u8) -> Result<Self, DnsTypeError> {
+        Ok(match number {
+            0 => Self::DeleteDs(DnsAlgorithm {
+                number: 0,
+                mnemonic: "DELETE",
+                zone_signing: false,
+                transaction_signing: false,
+            }),
+            1 => Self::RsaMd5(DnsAlgorithm {
+                number: 1,
+                mnemonic: "RSAMD5",
+                zone_signing: false,
+                transaction_signing: true,
+            }),
+            2 => Self::DiffieHellman(DnsAlgorithm {
+                number: 2,
+                mnemonic: "DH",
+                zone_signing: false,
+                transaction_signing: true,
+            }),
+            3 => Self::Dsa(DnsAlgorithm {
+                number: 3,
+                mnemonic: "DSA",
+                zone_signing: true,
+                transaction_signing: true,
+            }),
+            5 => Self::RsaSha1(DnsAlgorithm {
+                number: 5,
+                mnemonic: "RSASHA1",
+                zone_signing: true,
+                transaction_signing: true,
+            }),
+            6 => Self::DsaNsec3Sha1(DnsAlgorithm {
+                number: 6,
+                mnemonic: "DSA-NSEC3-SHA1",
+                zone_signing: true,
+                transaction_signing: true,
+            }),
+            7 => Self::RsaSha1Nsec3Sha1(DnsAlgorithm {
+                number: 7,
+                mnemonic: "RSA-NSEC3-SHA1",
+                zone_signing: true,
+                transaction_signing: true,
+            }),
+            8 => Self::RsaSha256(DnsAlgorithm {
+                number: 8,
+                mnemonic: "RSASHA256",
+                zone_signing: true,
+                transaction_signing: false,
+            }),
+            10 => Self::RsaSha512(DnsAlgorithm {
+                number: 10,
+                mnemonic: "RSASHA512",
+                zone_signing: true,
+                transaction_signing: false,
+            }),
+            12 => Self::EccGost(DnsAlgorithm {
+                number: 12,
+                mnemonic: "ECC-GOST",
+                zone_signing: true,
+                transaction_signing: false,
+            }),
+            13 => Self::EcdsaP256Sha256(DnsAlgorithm {
+                number: 13,
+                mnemonic: "ECDSAP256SHA256",
+                zone_signing: true,
+                transaction_signing: false,
+            }),
+            14 => Self::EcdsaP384Sha384(DnsAlgorithm {
+                number: 14,
+                mnemonic: "ECDSAP384SHA384",
+                zone_signing: true,
+                transaction_signing: false,
+            }),
+            15 => Self::Ed25519(DnsAlgorithm {
+                number: 15,
+                mnemonic: "ED25519",
+                zone_signing: true,
+                transaction_signing: false,
+            }),
+            16 => Self::Ed448(DnsAlgorithm {
+                number: 16,
+                mnemonic: "ED448",
+                zone_signing: true,
+                transaction_signing: false,
+            }),
+            253 => Self::PrivateDns(DnsAlgorithm {
+                number: 253,
+                mnemonic: "PRIVATEDNS",
+                zone_signing: true,
+                transaction_signing: true,
+            }),
+            254 => Self::PrivateOid(DnsAlgorithm {
+                number: 254,
+                mnemonic: "PRIVATEOID",
+                zone_signing: true,
+                transaction_signing: true,
+            }),
+            _ => return Err(DnsTypeError::InvalidAlgorithm),
+        })
+    }
+
+    fn algo(self) -> DnsAlgorithm {
+        match self {
+            Self::DeleteDs(a)
+            | Self::RsaMd5(a)
+            | Self::DiffieHellman(a)
+            | Self::Dsa(a)
+            | Self::RsaSha1(a)
+            | Self::DsaNsec3Sha1(a)
+            | Self::RsaSha1Nsec3Sha1(a)
+            | Self::RsaSha256(a)
+            | Self::RsaSha512(a)
+            | Self::EccGost(a)
+            | Self::EcdsaP256Sha256(a)
+            | Self::EcdsaP384Sha384(a)
+            | Self::Ed25519(a)
+            | Self::Ed448(a)
+            | Self::PrivateDns(a)
+            | Self::PrivateOid(a) => a,
+        }
+    }
+
+    /// Get the mnemonic for the algorithm number.
+    pub fn mnemonic(number: u8) -> Result<&'static str, DnsTypeError> {
+        let alg = Self::from_number(number)?;
+        Ok(alg.algo().mnemonic)
+    }
+
+    /// True if the DNS Algorithm can sign zones.
+    pub fn zone_signing(number: u8) -> Result<bool, DnsTypeError> {
+        let alg = Self::from_number(number)?;
+        Ok(alg.algo().zone_signing)
+    }
+}
+
+/// DNS Digest.
+pub struct DnsDigest {
+    pub number: u8,
+    pub mnemonic: &'static str,
+    pub mandatory: bool,
+}
+
+/*
+
+0 	Reserved 	- 	[RFC3658]
+1 	SHA-1 	MANDATORY 	[RFC3658]
+2 	SHA-256 	MANDATORY 	[RFC4509]
+3 	GOST R 34.11-94 	OPTIONAL 	[RFC5933]
+4 	SHA-384 	OPTIONAL
+*/
+
+/// DNS Digest Variants.
+pub enum DnsDigestType {
+    Sha1(DnsDigest),
+    Sha256(DnsDigest),
+    Gost(DnsDigest),
+    Sha384(DnsDigest),
+}
+
+impl DnsDigestType {
+    /// Get the [DnsDigestType] from the protocol number.
+    pub fn from_number(number: u8) -> Result<Self, DnsTypeError> {
+        Ok(match number {
+            1 => Self::Sha1(DnsDigest {
+                number: 1,
+                mnemonic: "SHA1",
+                mandatory: true,
+            }),
+            2 => Self::Sha256(DnsDigest {
+                number: 2,
+                mnemonic: "SHA256",
+                mandatory: true,
+            }),
+            3 => Self::Gost(DnsDigest {
+                number: 3,
+                mnemonic: "GOST",
+                mandatory: false,
+            }),
+            4 => Self::Sha384(DnsDigest {
+                number: 4,
+                mnemonic: "SHA384",
+                mandatory: false,
+            }),
+            _ => return Err(DnsTypeError::InvalidDigest),
+        })
+    }
+
+    /// Get the mnemonic from the protocol number.
+    pub fn mnemonic(number: u8) -> Result<&'static str, DnsTypeError> {
+        let digest = Self::from_number(number)?;
+        Ok(match digest {
+            Self::Sha1(d) | Self::Sha256(d) | Self::Gost(d) | Self::Sha384(d) => d.mnemonic,
+        })
+    }
+}
+
+/// Error specific to processing of domain names.
+#[derive(Debug, Error)]
+pub enum DomainNameError {
+    #[error("Invalid Domain Name")]
+    InvalidDomainName,
+    #[error(transparent)]
+    IdnaError(#[from] idna::Errors),
+}
+
+/// Represents a Domain name.
+#[derive(Debug)]
+pub struct DomainName {
+    domain_name: String,
+    ascii: String,
+}
+
+impl DomainName {
+    /// Iterate over the characters of the domain name.
+    pub fn chars(&self) -> Chars<'_> {
+        self.domain_name.chars()
+    }
+
+    /// Is this domain name a TLD.
+    pub fn is_tld(&self) -> bool {
+        self.domain_name.is_tld()
+    }
+
+    /// Gets the ASCII version of the domain, which is different if this is an IDN.
+    pub fn to_ascii(&self) -> &str {
+        &self.ascii
+    }
+
+    /// Is this domain name an IDN.
+    pub fn is_idn(&self) -> bool {
+        !self.ascii.eq(&self.domain_name)
+    }
+
+    /// Is this the DNS root.
+    pub fn is_root(&self) -> bool {
+        self.domain_name.eq(".")
+    }
+
+    /// Get this domain name with a leading dot.
+    pub fn with_leading_dot(&self) -> String {
+        if !self.is_root() {
+            format!(".{}", self.domain_name)
+        } else {
+            self.domain_name.to_string()
+        }
+    }
+
+    /// Trim leading dot.
+    pub fn trim_leading_dot(&self) -> &str {
+        if !self.is_root() {
+            self.domain_name.trim_start_matches('.')
+        } else {
+            &self.domain_name
+        }
+    }
+}
+
+impl FromStr for DomainName {
+    type Err = DomainNameError;
+
+    /// Create a new DomainName from a string.
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        if !s.is_unicode_domain_name() {
+            return Err(DomainNameError::InvalidDomainName);
+        }
+        let ascii = domain_to_ascii(s)?;
+        Ok(Self {
+            domain_name: s.to_string(),
+            ascii,
+        })
+    }
+}

icann-rdap-common/src/httpdata.rs

@@ -0,0 +1,327 @@
+//! Code for handling HTTP caching.
+
+use {
+    chrono::{DateTime, Duration, Utc},
+    serde::{Deserialize, Serialize},
+};
+
+/// Represents the data from HTTP responses.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct HttpData {
+    pub content_length: Option<u64>,
+    pub content_type: Option<String>,
+    pub scheme: Option<String>,
+    pub host: String,
+    pub expires: Option<String>,
+    pub cache_control: Option<String>,
+    pub received: DateTime<Utc>,
+    pub status_code: u16,
+    pub location: Option<String>,
+    pub access_control_allow_origin: Option<String>,
+    pub access_control_allow_credentials: Option<String>,
+    pub strict_transport_security: Option<String>,
+    pub retry_after: Option<String>,
+    pub request_uri: Option<String>,
+}
+
+#[buildstructor::buildstructor]
+impl HttpData {
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new(
+        content_length: Option<u64>,
+        content_type: Option<String>,
+        scheme: Option<String>,
+        host: String,
+        expires: Option<String>,
+        cache_control: Option<String>,
+        status_code: u16,
+        location: Option<String>,
+        access_control_allow_origin: Option<String>,
+        access_control_allow_credentials: Option<String>,
+        strict_transport_security: Option<String>,
+        retry_after: Option<String>,
+        received: DateTime<Utc>,
+        request_uri: Option<String>,
+    ) -> Self {
+        Self {
+            content_length,
+            content_type,
+            scheme,
+            host,
+            expires,
+            cache_control,
+            received,
+            status_code,
+            location,
+            access_control_allow_origin,
+            access_control_allow_credentials,
+            strict_transport_security,
+            retry_after,
+            request_uri,
+        }
+    }
+
+    #[builder(entry = "now", visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_now(
+        content_length: Option<u64>,
+        content_type: Option<String>,
+        scheme: String,
+        host: String,
+        expires: Option<String>,
+        cache_control: Option<String>,
+        status_code: Option<u16>,
+        location: Option<String>,
+        access_control_allow_origin: Option<String>,
+        access_control_allow_credentials: Option<String>,
+        strict_transport_security: Option<String>,
+        retry_after: Option<String>,
+        request_uri: Option<String>,
+    ) -> Self {
+        Self {
+            content_length,
+            content_type,
+            scheme: Some(scheme),
+            host,
+            expires,
+            cache_control,
+            received: Utc::now(),
+            status_code: status_code.unwrap_or(200),
+            location,
+            access_control_allow_origin,
+            access_control_allow_credentials,
+            strict_transport_security,
+            retry_after,
+            request_uri,
+        }
+    }
+
+    #[builder(entry = "example", visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_example(
+        content_length: Option<u64>,
+        content_type: Option<String>,
+        expires: Option<String>,
+        cache_control: Option<String>,
+        status_code: Option<u16>,
+        location: Option<String>,
+        access_control_allow_origin: Option<String>,
+        access_control_allow_credentials: Option<String>,
+        strict_transport_security: Option<String>,
+        retry_after: Option<String>,
+        request_uri: Option<String>,
+    ) -> Self {
+        Self {
+            content_length,
+            content_type,
+            scheme: Some("http".to_string()),
+            host: "example.com".to_string(),
+            expires,
+            cache_control,
+            received: Utc::now(),
+            status_code: status_code.unwrap_or(200),
+            location,
+            access_control_allow_origin,
+            access_control_allow_credentials,
+            strict_transport_security,
+            retry_after,
+            request_uri,
+        }
+    }
+
+    pub fn is_expired(&self, max_age: i64) -> bool {
+        let now = Utc::now();
+        if now >= self.received + Duration::seconds(max_age) {
+            return true;
+        }
+        if let Some(cache_control) = &self.cache_control {
+            let cc_max_age = cache_control
+                .split(',')
+                .map(|s| s.trim())
+                .find(|s| s.starts_with("max-age="));
+            if let Some(cc_max_age) = cc_max_age {
+                let cc_max_age = cc_max_age.trim_start_matches("max-age=").parse::<i64>();
+                if let Ok(cc_max_age) = cc_max_age {
+                    return now >= self.received + Duration::seconds(cc_max_age);
+                }
+            }
+        }
+        if let Some(expires) = &self.expires {
+            let expire_time = DateTime::parse_from_rfc2822(expires);
+            return if let Ok(expire_time) = expire_time {
+                now >= expire_time
+            } else {
+                false
+            };
+        }
+        false
+    }
+
+    pub fn should_cache(&self) -> bool {
+        if let Some(cache_control) = &self.cache_control {
+            return !cache_control
+                .split(',')
+                .map(|s| s.trim())
+                .any(|s| s.eq("no-store") || s.eq("no-cache"));
+        }
+        true
+    }
+
+    pub fn from_lines(lines: &[String]) -> Result<(Self, &[String]), serde_json::Error> {
+        let count = lines.iter().take_while(|s| !s.starts_with("---")).count();
+        let cache_data = lines
+            .iter()
+            .take(count)
+            .cloned()
+            .collect::<Vec<String>>()
+            .join("");
+        let cache_data = serde_json::from_str(&cache_data)?;
+        Ok((cache_data, &lines[count + 1..]))
+    }
+
+    pub fn to_lines(&self, data: &str) -> Result<String, serde_json::Error> {
+        let mut lines = serde_json::to_string(self)?;
+        lines.push_str("\n---\n");
+        lines.push_str(data);
+        Ok(lines)
+    }
+
+    pub fn content_length(&self) -> Option<u64> {
+        self.content_length
+    }
+
+    pub fn content_type(&self) -> Option<&str> {
+        self.content_type.as_deref()
+    }
+
+    pub fn scheme(&self) -> Option<&str> {
+        self.scheme.as_deref()
+    }
+
+    pub fn host(&self) -> &str {
+        &self.host
+    }
+
+    pub fn expires(&self) -> Option<&str> {
+        self.expires.as_deref()
+    }
+
+    pub fn cache_control(&self) -> Option<&str> {
+        self.cache_control.as_deref()
+    }
+
+    pub fn received(&self) -> &DateTime<Utc> {
+        &self.received
+    }
+
+    pub fn status_code(&self) -> u16 {
+        self.status_code
+    }
+
+    pub fn location(&self) -> Option<&str> {
+        self.location.as_deref()
+    }
+
+    pub fn access_control_allow_origin(&self) -> Option<&str> {
+        self.access_control_allow_origin.as_deref()
+    }
+
+    pub fn access_control_allow_credentials(&self) -> Option<&str> {
+        self.access_control_allow_credentials.as_deref()
+    }
+
+    pub fn strict_transport_security(&self) -> Option<&str> {
+        self.strict_transport_security.as_deref()
+    }
+
+    pub fn retry_after(&self) -> Option<&str> {
+        self.retry_after.as_deref()
+    }
+
+    pub fn request_uri(&self) -> Option<&str> {
+        self.request_uri.as_deref()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use {
+        super::HttpData,
+        chrono::{Duration, Utc},
+        rstest::rstest,
+    };
+
+    #[rstest]
+    #[case(HttpData::example().cache_control("max-age=0").build(), 100, true)]
+    #[case(HttpData::example().cache_control("max-age=100").build(), 0, true)]
+    #[case(HttpData::example().cache_control("max-age=100").build(), 50, false)]
+    #[case(HttpData::example().build(), 0, true)]
+    #[case(HttpData::example().build(), 100, false)]
+    #[case(HttpData::example().expires(Utc::now().to_rfc2822()).build(), 100, true)]
+    #[case(HttpData::example().expires((Utc::now() + Duration::seconds(50)).to_rfc2822()).build(), 100, false)]
+    #[case(HttpData::example().expires((Utc::now() + Duration::seconds(100)).to_rfc2822()).build(), 50, false)]
+    #[case(HttpData::example().cache_control("max-age=100").expires(Utc::now().to_rfc2822()).build(), 100, false)]
+    #[case(HttpData::example().cache_control("max-age=0").expires((Utc::now() + Duration::seconds(50)).to_rfc2822()).build(), 100, true)]
+    fn test_cache_data_and_max_age_is_expired(
+        #[case] cache_data: HttpData,
+        #[case] max_age: i64,
+        #[case] expected: bool,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = cache_data.is_expired(max_age);
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[rstest]
+    #[case(HttpData::example().cache_control("no-cache").build(), false)]
+    #[case(HttpData::example().cache_control("no-store").build(), false)]
+    #[case(HttpData::example().cache_control("max-age=40").build(), true)]
+    fn test_cache_control(#[case] cache_data: HttpData, #[case] expected: bool) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = cache_data.should_cache();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn test_data_and_data_cache_to_lines() {
+        // GIVEN
+        let data = "foo";
+        let cache_data = HttpData::example().content_length(14).build();
+
+        // WHEN
+        let actual = cache_data.to_lines(data).unwrap();
+
+        // THEN
+        let expected = format!("{}\n---\nfoo", serde_json::to_string(&cache_data).unwrap());
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn test_from_lines() {
+        // GIVEN
+        let data = "foo";
+        let cache_data = HttpData::example().content_length(14).build();
+        let lines = cache_data
+            .to_lines(data)
+            .unwrap()
+            .split('\n')
+            .map(|s| s.to_string())
+            .collect::<Vec<String>>();
+
+        // WHEN
+        let actual = HttpData::from_lines(&lines).expect("parsing lines");
+
+        // THEN
+        assert_eq!(cache_data, actual.0);
+        assert_eq!(vec![data], actual.1);
+    }
+}

icann-rdap-common/src/iana.rs

@@ -0,0 +1,746 @@
+//! The IANA RDAP Bootstrap Registries.
+
+use {
+    ipnet::{Ipv4Net, Ipv6Net},
+    prefix_trie::PrefixMap,
+    serde::{Deserialize, Serialize},
+    thiserror::Error,
+};
+
+/// IANA registry variants for RDAP.
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub enum IanaRegistryType {
+    RdapBootstrapDns,
+    RdapBootstrapAsn,
+    RdapBootstrapIpv4,
+    RdapBootstrapIpv6,
+    RdapObjectTags,
+}
+
+impl IanaRegistryType {
+    /// Get the URL for an IANA RDAP registry.
+    pub fn url(&self) -> &str {
+        match self {
+            Self::RdapBootstrapDns => "https://data.iana.org/rdap/dns.json",
+            Self::RdapBootstrapAsn => "https://data.iana.org/rdap/asn.json",
+            Self::RdapBootstrapIpv4 => "https://data.iana.org/rdap/ipv4.json",
+            Self::RdapBootstrapIpv6 => "https://data.iana.org/rdap/ipv6.json",
+            Self::RdapObjectTags => "https://data.iana.org/rdap/object-tags.json",
+        }
+    }
+
+    /// Get the filename in the URL for the IANA RDAP registry.
+    pub fn file_name(&self) -> &str {
+        let url = self.url();
+        url.rsplit('/')
+            .next()
+            .expect("unexpected errror: cannot get filename from url")
+    }
+}
+
+/// Classes of IANA registries.
+#[derive(Debug, Serialize, Deserialize, Clone)]
+#[serde(untagged)]
+pub enum IanaRegistry {
+    RdapBootstrapRegistry(RdapBootstrapRegistry),
+    // might add IANA registrar IDs later
+}
+
+/// Represents an IANA RDAP bootstrap registry.
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct RdapBootstrapRegistry {
+    pub version: String,
+    pub publication: String,
+    pub description: Option<String>,
+    pub services: Vec<Vec<Vec<String>>>,
+}
+
+pub trait BootstrapRegistry {
+    fn get_dns_bootstrap_urls(&self, ldh: &str) -> Result<Vec<String>, BootstrapRegistryError>;
+    fn get_asn_bootstrap_urls(&self, asn: &str) -> Result<Vec<String>, BootstrapRegistryError>;
+    fn get_ipv4_bootstrap_urls(&self, ipv4: &str) -> Result<Vec<String>, BootstrapRegistryError>;
+    fn get_ipv6_bootstrap_urls(&self, ipv6: &str) -> Result<Vec<String>, BootstrapRegistryError>;
+    fn get_tag_bootstrap_urls(&self, tag: &str) -> Result<Vec<String>, BootstrapRegistryError>;
+}
+
+/// Errors from processing IANA RDAP bootstrap registries.
+#[derive(Debug, Error)]
+pub enum BootstrapRegistryError {
+    #[error("Empty Service")]
+    EmptyService,
+    #[error("Empty URL Set")]
+    EmptyUrlSet,
+    #[error("Invalid Bootstrap Input")]
+    InvalidBootstrapInput,
+    #[error("No Bootstrap URLs Found")]
+    NoBootstrapUrls,
+    #[error("Invalid Bootstrap Service")]
+    InvalidBootstrapService,
+}
+
+impl BootstrapRegistry for IanaRegistry {
+    /// Get the URLs from the IANA domain bootstrap registry.
+    fn get_dns_bootstrap_urls(&self, ldh: &str) -> Result<Vec<String>, BootstrapRegistryError> {
+        let mut longest_match: Option<(usize, Vec<String>)> = None;
+        let Self::RdapBootstrapRegistry(bootstrap) = self;
+        for service in &bootstrap.services {
+            let tlds = service
+                .first()
+                .ok_or(BootstrapRegistryError::EmptyService)?;
+            for tld in tlds {
+                // if the ldh domain ends with the tld or the tld is the empty string which means the root
+                if ldh.ends_with(tld) || tld.is_empty() {
+                    let urls = service.last().ok_or(BootstrapRegistryError::EmptyUrlSet)?;
+                    let longest = longest_match.get_or_insert_with(|| (tld.len(), urls.to_owned()));
+                    if longest.0 < tld.len() {
+                        *longest = (tld.len(), urls.to_owned());
+                    }
+                }
+            }
+        }
+        let longest = longest_match.ok_or(BootstrapRegistryError::NoBootstrapUrls)?;
+        Ok(longest.1)
+    }
+
+    /// Get the URLS from the IANA autnum bootstrap registry.
+    fn get_asn_bootstrap_urls(&self, asn: &str) -> Result<Vec<String>, BootstrapRegistryError> {
+        let autnum = asn
+            .trim_start_matches(|c| -> bool { matches!(c, 'a' | 'A' | 's' | 'S') })
+            .parse::<u32>()
+            .map_err(|_| BootstrapRegistryError::InvalidBootstrapInput)?;
+        let Self::RdapBootstrapRegistry(bootstrap) = self;
+        for service in &bootstrap.services {
+            let as_ranges = service
+                .first()
+                .ok_or(BootstrapRegistryError::EmptyService)?;
+            for range in as_ranges {
+                let as_split = range.split('-').collect::<Vec<&str>>();
+                let start_as = as_split
+                    .first()
+                    .ok_or(BootstrapRegistryError::InvalidBootstrapService)?
+                    .parse::<u32>()
+                    .map_err(|_| BootstrapRegistryError::InvalidBootstrapInput)?;
+                let end_as = as_split
+                    .last()
+                    .ok_or(BootstrapRegistryError::InvalidBootstrapService)?
+                    .parse::<u32>()
+                    .map_err(|_| BootstrapRegistryError::InvalidBootstrapService)?;
+                if start_as <= autnum && end_as >= autnum {
+                    let urls = service.last().ok_or(BootstrapRegistryError::EmptyUrlSet)?;
+                    return Ok(urls.to_owned());
+                }
+            }
+        }
+        Err(BootstrapRegistryError::NoBootstrapUrls)
+    }
+
+    /// Get the URLs from the IANA IPv4 bootstrap registry.
+    fn get_ipv4_bootstrap_urls(&self, ipv4: &str) -> Result<Vec<String>, BootstrapRegistryError> {
+        let mut pm: PrefixMap<Ipv4Net, Vec<String>> = PrefixMap::new();
+        let Self::RdapBootstrapRegistry(bootstrap) = self;
+        for service in &bootstrap.services {
+            let urls = service.last().ok_or(BootstrapRegistryError::EmptyService)?;
+            for cidr in service
+                .first()
+                .ok_or(BootstrapRegistryError::InvalidBootstrapService)?
+            {
+                pm.insert(
+                    cidr.parse()
+                        .map_err(|_| BootstrapRegistryError::InvalidBootstrapService)?,
+                    urls.clone(),
+                );
+            }
+        }
+        let net = pm
+            .get_lpm(
+                &ipv4
+                    .parse::<Ipv4Net>()
+                    .map_err(|_| BootstrapRegistryError::InvalidBootstrapInput)?,
+            )
+            .ok_or(BootstrapRegistryError::NoBootstrapUrls)?;
+        Ok(net.1.to_owned())
+    }
+
+    /// Get the URLs from the IANA IPv6 bootstrap registry.
+    fn get_ipv6_bootstrap_urls(&self, ipv6: &str) -> Result<Vec<String>, BootstrapRegistryError> {
+        let mut pm: PrefixMap<Ipv6Net, Vec<String>> = PrefixMap::new();
+        let Self::RdapBootstrapRegistry(bootstrap) = self;
+        for service in &bootstrap.services {
+            let urls = service.last().ok_or(BootstrapRegistryError::EmptyService)?;
+            for cidr in service
+                .first()
+                .ok_or(BootstrapRegistryError::InvalidBootstrapService)?
+            {
+                pm.insert(
+                    cidr.parse()
+                        .map_err(|_| BootstrapRegistryError::InvalidBootstrapService)?,
+                    urls.clone(),
+                );
+            }
+        }
+        let net = pm
+            .get_lpm(
+                &ipv6
+                    .parse::<Ipv6Net>()
+                    .map_err(|_| BootstrapRegistryError::InvalidBootstrapInput)?,
+            )
+            .ok_or(BootstrapRegistryError::NoBootstrapUrls)?;
+        Ok(net.1.to_owned())
+    }
+
+    /// Get the URLs from the IANA object tag bootstrap registry.
+    fn get_tag_bootstrap_urls(&self, tag: &str) -> Result<Vec<String>, BootstrapRegistryError> {
+        let Self::RdapBootstrapRegistry(bootstrap) = self;
+        for service in &bootstrap.services {
+            let object_tag = service
+                .get(1)
+                .ok_or(BootstrapRegistryError::InvalidBootstrapService)?
+                .first()
+                .ok_or(BootstrapRegistryError::EmptyService)?;
+            if object_tag.to_ascii_uppercase() == tag.to_ascii_uppercase() {
+                let urls = service.last().ok_or(BootstrapRegistryError::EmptyUrlSet)?;
+                return Ok(urls.to_owned());
+            }
+        }
+        Err(BootstrapRegistryError::NoBootstrapUrls)
+    }
+}
+
+/// Prefer HTTPS urls.
+pub fn get_preferred_url(urls: Vec<String>) -> Result<String, BootstrapRegistryError> {
+    if urls.is_empty() {
+        Err(BootstrapRegistryError::EmptyUrlSet)
+    } else {
+        let url = urls
+            .iter()
+            .find(|s| s.starts_with("https://"))
+            .unwrap_or_else(|| urls.first().unwrap());
+        Ok(url.to_owned())
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use rstest::rstest;
+
+    use crate::iana::{get_preferred_url, BootstrapRegistry};
+
+    use super::{IanaRegistry, IanaRegistryType};
+
+    #[rstest]
+    #[case(IanaRegistryType::RdapBootstrapDns, "dns.json")]
+    #[case(IanaRegistryType::RdapBootstrapAsn, "asn.json")]
+    #[case(IanaRegistryType::RdapBootstrapIpv4, "ipv4.json")]
+    #[case(IanaRegistryType::RdapBootstrapIpv6, "ipv6.json")]
+    #[case(IanaRegistryType::RdapObjectTags, "object-tags.json")]
+    fn GIVEN_registry_WHEN_get_file_name_THEN_correct_result(
+        #[case] registry: IanaRegistryType,
+        #[case] expected: &str,
+    ) {
+        // GIVEN in parameters
+
+        // WHEN
+        let actual = registry.file_name();
+
+        // THEN
+        assert_eq!(actual, expected);
+    }
+
+    #[test]
+    fn GIVEN_domain_bootstrap_WHEN_deserialize_THEN_success() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "Some text",
+                "services": [
+                  [
+                    ["net", "com"],
+                    [
+                      "https://registry.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["org", "mytld"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ],
+                  [
+                    ["xn--zckzah"],
+                    [
+                      "https://example.net/rdap/xn--zckzah/",
+                      "http://example.net/rdap/xn--zckzah/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<IanaRegistry>(bootstrap);
+
+        // THEN
+        actual.unwrap();
+    }
+
+    #[test]
+    fn GIVEN_one_url_WHEN_preferred_urls_THEN_that_is_the_one() {
+        // GIVEN
+        let urls = vec!["http://foo.example".to_string()];
+
+        // WHEN
+        let actual = get_preferred_url(urls).expect("cannot get preferred url");
+
+        // THEN
+        assert_eq!(actual, "http://foo.example");
+    }
+
+    #[test]
+    fn GIVEN_one_http_and_https_url_WHEN_preferred_urls_THEN_return_https() {
+        // GIVEN
+        let urls = vec![
+            "http://foo.example".to_string(),
+            "https://foo.example".to_string(),
+        ];
+
+        // WHEN
+        let actual = get_preferred_url(urls).expect("cannot get preferred url");
+
+        // THEN
+        assert_eq!(actual, "https://foo.example");
+    }
+
+    #[test]
+    fn GIVEN_domain_bootstrap_with_matching_WHEN_find_THEN_url_matches() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "Some text",
+                "services": [
+                  [
+                    ["net", "com"],
+                    [
+                      "https://registry.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["org", "mytld"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse domain bootstrap");
+
+        // WHEN
+        let actual = iana.get_dns_bootstrap_urls("foo.org");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://example.org/"
+        );
+    }
+
+    #[test]
+    fn GIVEN_domain_bootstrap_with_two_matching_WHEN_find_THEN_return_longest_match() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "Some text",
+                "services": [
+                  [
+                    ["co.uk"],
+                    [
+                      "https://registry.co.uk/"
+                    ]
+                  ],
+                  [
+                    ["uk"],
+                    [
+                      "https://registry.uk/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse domain bootstrap");
+
+        // WHEN
+        let actual = iana.get_dns_bootstrap_urls("foo.co.uk");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://registry.co.uk/"
+        );
+    }
+
+    #[test]
+    fn GIVEN_domain_bootstrap_with_root_WHEN_find_THEN_url_matches() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "Some text",
+                "services": [
+                  [
+                    ["net", "com"],
+                    [
+                      "https://registry.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    [""],
+                    [
+                      "https://example.org/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse domain bootstrap");
+
+        // WHEN
+        let actual = iana.get_dns_bootstrap_urls("foo.org");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://example.org/"
+        );
+    }
+
+    #[test]
+    fn GIVEN_autnum_bootstrap_with_match_WHEN_find_with_string_THEN_return_match() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "RDAP Bootstrap file for example registries.",
+                "services": [
+                  [
+                    ["64496-64496"],
+                    [
+                      "https://rir3.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["64497-64510", "65536-65551"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ],
+                  [
+                    ["64512-65534"],
+                    [
+                      "http://example.net/rdaprir2/",
+                      "https://example.net/rdaprir2/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse autnum bootstrap");
+
+        // WHEN
+        let actual = iana.get_asn_bootstrap_urls("as64498");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://example.org/"
+        );
+    }
+
+    #[rstest]
+    #[case(64497u32, "https://example.org/")]
+    #[case(64498u32, "https://example.org/")]
+    #[case(64510u32, "https://example.org/")]
+    #[case(65536u32, "https://example.org/")]
+    #[case(65537u32, "https://example.org/")]
+    #[case(64513u32, "http://example.net/rdaprir2/")]
+    fn GIVEN_autnum_bootstrap_with_match_WHEN_find_with_number_THEN_return_match(
+        #[case] asn: u32,
+        #[case] bootstrap_url: &str,
+    ) {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "RDAP Bootstrap file for example registries.",
+                "services": [
+                  [
+                    ["64496-64496"],
+                    [
+                      "https://rir3.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["64497-64510", "65536-65551"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ],
+                  [
+                    ["64512-65534"],
+                    [
+                      "http://example.net/rdaprir2/",
+                      "https://example.net/rdaprir2/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse autnum bootstrap");
+
+        // WHEN
+        let actual = iana.get_asn_bootstrap_urls(&asn.to_string());
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            bootstrap_url
+        );
+    }
+
+    #[test]
+    fn GIVEN_ipv4_bootstrap_with_match_WHEN_find_with_ip_address_THEN_return_match() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "RDAP Bootstrap file for example registries.",
+                "services": [
+                  [
+                    ["198.51.100.0/24", "192.0.0.0/8"],
+                    [
+                      "https://rir1.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["203.0.113.0/24", "192.0.2.0/24"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ],
+                  [
+                    ["203.0.113.0/28"],
+                    [
+                      "https://example.net/rdaprir2/",
+                      "http://example.net/rdaprir2/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse ipv4 bootstrap");
+
+        // WHEN
+        let actual = iana.get_ipv4_bootstrap_urls("198.51.100.1/32");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://rir1.example.com/myrdap/"
+        );
+    }
+
+    #[test]
+    fn GIVEN_ipv4_bootstrap_with_match_WHEN_find_with_cidr_THEN_return_match() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "RDAP Bootstrap file for example registries.",
+                "services": [
+                  [
+                    ["198.51.100.0/24", "192.0.0.0/8"],
+                    [
+                      "https://rir1.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["203.0.113.0/24", "192.0.2.0/24"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ],
+                  [
+                    ["203.0.113.0/28"],
+                    [
+                      "https://example.net/rdaprir2/",
+                      "http://example.net/rdaprir2/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse ipv4 bootstrap");
+
+        // WHEN
+        let actual = iana.get_ipv4_bootstrap_urls("203.0.113.0/24");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://example.org/"
+        );
+    }
+
+    #[test]
+    fn GIVEN_ipv6_bootstrap_with_match_WHEN_find_with_ip_address_THEN_return_match() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "RDAP Bootstrap file for example registries.",
+                "services": [
+                  [
+                    ["2001:db8::/34"],
+                    [
+                      "https://rir2.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["2001:db8:4000::/36", "2001:db8:ffff::/48"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ],
+                  [
+                    ["2001:db8:1000::/36"],
+                    [
+                      "https://example.net/rdaprir2/",
+                      "http://example.net/rdaprir2/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse ipv6 bootstrap");
+
+        // WHEN
+        let actual = iana.get_ipv6_bootstrap_urls("2001:db8::1/128");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://rir2.example.com/myrdap/"
+        );
+    }
+
+    #[test]
+    fn GIVEN_ipv6_bootstrap_with_match_WHEN_find_with_ip_cidr_THEN_return_match() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+                "version": "1.0",
+                "publication": "2024-01-07T10:11:12Z",
+                "description": "RDAP Bootstrap file for example registries.",
+                "services": [
+                  [
+                    ["2001:db8::/34"],
+                    [
+                      "https://rir2.example.com/myrdap/"
+                    ]
+                  ],
+                  [
+                    ["2001:db8:4000::/36", "2001:db8:ffff::/48"],
+                    [
+                      "https://example.org/"
+                    ]
+                  ],
+                  [
+                    ["2001:db8:1000::/36"],
+                    [
+                      "https://example.net/rdaprir2/",
+                      "http://example.net/rdaprir2/"
+                    ]
+                  ]
+                ]
+            }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse ipv6 bootstrap");
+
+        // WHEN
+        let actual = iana.get_ipv6_bootstrap_urls("2001:db8:4000::/36");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://example.org/"
+        );
+    }
+
+    #[test]
+    fn GIVEN_tag_bootstrap_with_match_WHEN_find_with_tag_THEN_return_match() {
+        // GIVEN
+        let bootstrap = r#"
+            {
+              "version": "1.0",
+              "publication": "YYYY-MM-DDTHH:MM:SSZ",
+              "description": "RDAP bootstrap file for service provider object tags",
+              "services": [
+                [
+                  ["contact@example.com"],
+                  ["YYYY"],
+                  [
+                    "https://example.com/rdap/"
+                  ]
+                ],
+                [
+                  ["contact@example.org"],
+                  ["ZZ54"],
+                  [
+                    "http://rdap.example.org/"
+                  ]
+                ],
+                [
+                  ["contact@example.net"],
+                  ["1754"],
+                  [
+                    "https://example.net/rdap/",
+                    "http://example.net/rdap/"
+                  ]
+                ]
+              ]
+             }
+        "#;
+        let iana =
+            serde_json::from_str::<IanaRegistry>(bootstrap).expect("cannot parse tag bootstrap");
+
+        // WHEN
+        let actual = iana.get_tag_bootstrap_urls("YYYY");
+
+        // THEN
+        assert_eq!(
+            actual.expect("no vec").first().expect("vec is empty"),
+            "https://example.com/rdap/"
+        );
+    }
+}

icann-rdap-common/src/lib.rs

@@ -0,0 +1,28 @@
+#![allow(rustdoc::bare_urls)]
+#![doc = include_str!("../README.md")]
+pub mod check;
+pub mod contact;
+pub mod dns_types;
+pub mod httpdata;
+pub mod iana;
+pub mod media_types;
+pub mod response;
+
+/// Basics RDAP structures.
+pub mod prelude {
+    #[doc(inline)]
+    pub use crate::contact::*;
+    #[doc(inline)]
+    pub use crate::response::*;
+}
+
+#[cfg(debug_assertions)]
+use const_format::formatcp;
+
+/// Version of this software.
+#[cfg(not(any(target_arch = "wasm32", debug_assertions)))]
+pub const VERSION: &str = env!("CARGO_PKG_VERSION");
+
+/// Version of this software.
+#[cfg(debug_assertions)]
+pub const VERSION: &str = formatcp!("{}_DEV_BUILD", env!("CARGO_PKG_VERSION"));

icann-rdap-common/src/media_types.rs

@@ -0,0 +1,7 @@
+//! RDAP media types (formerly known as mime types).
+
+/// The "application/json" media type value.
+pub const JSON_MEDIA_TYPE: &str = "application/json";
+
+/// The "application/rdap+json" media type value.
+pub const RDAP_MEDIA_TYPE: &str = "application/rdap+json";

icann-rdap-common/src/response/autnum.rs

@@ -0,0 +1,341 @@
+//! RDAP Autonomous System Number.
+use {
+    crate::prelude::{Common, Extension, ObjectCommon},
+    serde::{Deserialize, Serialize},
+};
+
+use super::{
+    to_opt_vec, types::Link, CommonFields, Entity, Event, GetSelfLink, Notice, Numberish,
+    ObjectCommonFields, Port43, Remark, SelfLink, ToChild, ToResponse,
+};
+
+/// Represents an RDAP [autnum](https://rdap.rcode3.com/protocol/object_classes.html#autnum) object response.
+///
+/// Using the builder to construct this structure is recommended
+/// as it will fill-in many of the mandatory fields.
+/// The following is an example.
+///
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let autnum = Autnum::builder()
+///   .autnum_range(700..710) // the range of autnums
+///   .handle("AS700-1")
+///   .status("active")
+///   .build();
+/// let c = serde_json::to_string_pretty(&autnum).unwrap();
+/// eprintln!("{c}");
+/// ```
+/// This will produce the following.
+///
+/// ```norust
+/// {
+///   "rdapConformance": [
+///     "rdap_level_0"
+///   ],
+///   "objectClassName": "autnum",
+///   "handle": "AS700-1",
+///   "status": [
+///     "active"
+///   ],
+///   "startAutnum": 700,
+///   "endAutnum": 710
+/// }
+/// ```
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Autnum {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(flatten)]
+    pub object_common: ObjectCommon,
+
+    #[serde(rename = "startAutnum")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub start_autnum: Option<Numberish<u32>>,
+
+    #[serde(rename = "endAutnum")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub end_autnum: Option<Numberish<u32>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub name: Option<String>,
+
+    #[serde(rename = "type")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub autnum_type: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub country: Option<String>,
+}
+
+#[buildstructor::buildstructor]
+impl Autnum {
+    /// Builds a basic autnum object.
+    ///
+    /// ```rust
+    /// use icann_rdap_common::prelude::*;
+    ///
+    /// let autnum = Autnum::builder()
+    ///   .autnum_range(700..710)
+    ///   .handle("AS700-1")
+    ///   .status("active")
+    ///   .build();
+    /// ```
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new(
+        autnum_range: std::ops::Range<u32>,
+        handle: Option<String>,
+        remarks: Vec<Remark>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+        statuses: Vec<String>,
+        port_43: Option<Port43>,
+        entities: Vec<Entity>,
+        notices: Vec<Notice>,
+        country: Option<String>,
+        autnum_type: Option<String>,
+        name: Option<String>,
+        extensions: Vec<Extension>,
+        redacted: Option<Vec<crate::response::redacted::Redacted>>,
+    ) -> Self {
+        Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .and_notices(to_opt_vec(notices))
+                .build(),
+            object_common: ObjectCommon::autnum()
+                .and_handle(handle)
+                .and_remarks(to_opt_vec(remarks))
+                .and_links(to_opt_vec(links))
+                .and_events(to_opt_vec(events))
+                .status(statuses)
+                .and_port_43(port_43)
+                .and_entities(to_opt_vec(entities))
+                .and_redacted(redacted)
+                .build(),
+            start_autnum: Some(Numberish::<u32>::from(autnum_range.start)),
+            end_autnum: Some(Numberish::<u32>::from(autnum_range.end)),
+            name,
+            autnum_type,
+            country,
+        }
+    }
+
+    /// Returns the starting ASN of the range.
+    pub fn start_autnum(&self) -> Option<u32> {
+        self.start_autnum.as_ref().and_then(|n| n.as_u32())
+    }
+
+    /// Returns the ending ASN of the range.
+    pub fn end_autnum(&self) -> Option<u32> {
+        self.end_autnum.as_ref().and_then(|n| n.as_u32())
+    }
+
+    /// Returns the name of the ASN.
+    pub fn name(&self) -> Option<&str> {
+        self.name.as_deref()
+    }
+
+    /// Returns the type of the ASN.
+    pub fn autnum_type(&self) -> Option<&str> {
+        self.autnum_type.as_deref()
+    }
+
+    /// Returns the country of the ASN.
+    pub fn country(&self) -> Option<&str> {
+        self.country.as_deref()
+    }
+}
+
+impl ToResponse for Autnum {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::Autnum(Box::new(self))
+    }
+}
+
+impl GetSelfLink for Autnum {
+    fn get_self_link(&self) -> Option<&Link> {
+        self.object_common.get_self_link()
+    }
+}
+
+impl SelfLink for Autnum {
+    fn set_self_link(mut self, link: Link) -> Self {
+        self.object_common = self.object_common.set_self_link(link);
+        self
+    }
+}
+
+impl ToChild for Autnum {
+    fn to_child(mut self) -> Self {
+        self.common = Common {
+            rdap_conformance: None,
+            notices: None,
+        };
+        self
+    }
+}
+
+impl CommonFields for Autnum {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ObjectCommonFields for Autnum {
+    fn object_common(&self) -> &ObjectCommon {
+        &self.object_common
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use super::Autnum;
+
+    #[test]
+    fn GIVEN_autnum_WHEN_deserialize_THEN_success() {
+        // GIVEN
+        let expected = r#"
+            {
+              "objectClassName" : "autnum",
+              "handle" : "XXXX-RIR",
+              "startAutnum" : 65536,
+              "endAutnum" : 65541,
+              "name": "AS-RTR-1",
+              "type" : "DIRECT ALLOCATION",
+              "status" : [ "active" ],
+              "country": "AU",
+              "remarks" :
+              [
+                {
+                  "description" :
+                  [
+                    "She sells sea shells down by the sea shore.",
+                    "Originally written by Terry Sullivan."
+                  ]
+                }
+              ],
+              "links" :
+              [
+                {
+                  "value" : "https://example.net/autnum/65537",
+                  "rel" : "self",
+                  "href" : "https://example.net/autnum/65537",
+                  "type" : "application/rdap+json"
+                }
+              ],
+              "events" :
+
+              [
+                {
+                  "eventAction" : "registration",
+                  "eventDate" : "1990-12-31T23:59:59Z"
+                },
+                {
+                  "eventAction" : "last changed",
+                  "eventDate" : "1991-12-31T23:59:59Z"
+                }
+              ],
+              "entities" :
+              [
+                {
+                  "objectClassName" : "entity",
+                  "handle" : "XXXX",
+                  "vcardArray":[
+                    "vcard",
+                    [
+                      ["version", {}, "text", "4.0"],
+                      ["fn", {}, "text", "Joe User"],
+                      ["kind", {}, "text", "individual"],
+                      ["lang", {
+                        "pref":"1"
+                      }, "language-tag", "fr"],
+                      ["lang", {
+                        "pref":"2"
+                      }, "language-tag", "en"],
+                      ["org", {
+                        "type":"work"
+                      }, "text", "Example"],
+                      ["title", {}, "text", "Research Scientist"],
+                      ["role", {}, "text", "Project Lead"],
+                      ["adr",
+                        { "type":"work" },
+                        "text",
+                        [
+                          "",
+                          "Suite 1234",
+                          "4321 Rue Somewhere",
+                          "Quebec",
+                          "QC",
+                          "G1V 2M2",
+                          "Canada"
+                        ]
+                      ],
+                      ["tel",
+                        { "type":["work", "voice"], "pref":"1" },
+                        "uri", "tel:+1-555-555-1234;ext=102"
+                      ],
+                      ["email",
+                        { "type":"work" },
+                        "text", "joe.user@example.com"
+                      ]
+                    ]
+                  ],
+                  "roles" : [ "registrant" ],
+                  "remarks" :
+                  [
+                    {
+                      "description" :
+                      [
+                        "She sells sea shells down by the sea shore.",
+                        "Originally written by Terry Sullivan."
+                      ]
+                    }
+                  ],
+                  "links" :
+                  [
+                    {
+                      "value" : "https://example.net/entity/XXXX",
+                      "rel" : "self",
+                      "href" : "https://example.net/entity/XXXX",
+                      "type" : "application/rdap+json"
+                    }
+                  ],
+                  "events" :
+                  [
+                    {
+                      "eventAction" : "registration",
+                      "eventDate" : "1990-12-31T23:59:59Z"
+                    },
+                    {
+                      "eventAction" : "last changed",
+                      "eventDate" : "1991-12-31T23:59:59Z"
+                    }
+                  ]
+                }
+              ]
+            }
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<Autnum>(expected);
+
+        // THEN
+        let actual = actual.unwrap();
+        assert_eq!(actual.object_common.object_class_name, "autnum");
+        assert!(actual.object_common.handle.is_some());
+        assert!(actual.start_autnum.is_some());
+        assert!(actual.end_autnum.is_some());
+        assert!(actual.name.is_some());
+        assert!(actual.autnum_type.is_some());
+        assert!(actual.object_common.status.is_some());
+        assert!(actual.country.is_some());
+        assert!(actual.object_common.remarks.is_some());
+        assert!(actual.object_common.links.is_some());
+        assert!(actual.object_common.events.is_some());
+        assert!(actual.object_common.entities.is_some());
+    }
+}

icann-rdap-common/src/response/common.rs

@@ -0,0 +1,51 @@
+use serde::{Deserialize, Serialize};
+
+use super::{Extension, ExtensionId, Notice, Notices, RdapConformance};
+
+/// Holds those types that are common in all responses.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Common {
+    #[serde(rename = "rdapConformance")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub rdap_conformance: Option<RdapConformance>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub notices: Option<Notices>,
+}
+
+#[buildstructor::buildstructor]
+impl Common {
+    #[builder(entry = "level0", visibility = "pub(crate)")]
+    fn new_level0(mut extensions: Vec<Extension>, notices: Option<Vec<Notice>>) -> Self {
+        let mut standard_extensions = vec![ExtensionId::RdapLevel0.to_extension()];
+        extensions.append(&mut standard_extensions);
+        Self {
+            rdap_conformance: Some(extensions),
+            notices,
+        }
+    }
+}
+
+/// Empty Extensions.
+static EMPTY_EXTENSIONS: Vec<Extension> = vec![];
+/// Empty Notices.
+static EMPTY_NOTICES: Vec<Notice> = vec![];
+
+/// Convience methods for fields in  [Common].
+pub trait CommonFields {
+    /// Getter for [Common].
+    fn common(&self) -> &Common;
+
+    /// Getter for Vec of RDAP extensions.
+    fn extensions(&self) -> &Vec<Extension> {
+        self.common()
+            .rdap_conformance
+            .as_ref()
+            .unwrap_or(&EMPTY_EXTENSIONS)
+    }
+
+    /// Getter for Vec of Notices.
+    fn notices(&self) -> &Vec<Notice> {
+        self.common().notices.as_ref().unwrap_or(&EMPTY_NOTICES)
+    }
+}

icann-rdap-common/src/response/domain.rs

@@ -0,0 +1,986 @@
+//! RDAP Domain Object Class
+use {
+    crate::prelude::{Common, Extension, ObjectCommon},
+    buildstructor::Builder,
+    serde::{Deserialize, Serialize},
+};
+
+use super::{
+    lenient::{Boolish, Numberish},
+    nameserver::Nameserver,
+    network::Network,
+    to_opt_vec, to_opt_vectorstringish,
+    types::{Events, Link, Links, PublicIds},
+    CommonFields, Entity, Event, GetSelfLink, Notice, ObjectCommonFields, Port43, PublicId, Remark,
+    SelfLink, ToChild, ToResponse, VectorStringish, EMPTY_VEC_STRING,
+};
+
+/// Represents an RDAP variant name.
+#[derive(Serialize, Deserialize, Builder, Clone, Debug, PartialEq, Eq)]
+pub struct VariantName {
+    #[serde(rename = "ldhName")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ldh_name: Option<String>,
+
+    #[serde(rename = "unicodeName")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub unicode_name: Option<String>,
+}
+
+impl VariantName {
+    /// Convenience method.
+    pub fn ldh_name(&self) -> Option<&str> {
+        self.ldh_name.as_deref()
+    }
+
+    /// Convenience method.
+    pub fn unicode_name(&self) -> Option<&str> {
+        self.unicode_name.as_deref()
+    }
+}
+
+/// Represents an RDAP IDN variant.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Variant {
+    #[serde(rename = "relation")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub relations: Option<VectorStringish>,
+
+    #[serde(rename = "idnTable")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub idn_table: Option<String>,
+
+    #[serde(rename = "variantNames")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub variant_names: Option<Vec<VariantName>>,
+}
+
+static EMPTY_VARIANT_NAMES: Vec<VariantName> = vec![];
+
+#[buildstructor::buildstructor]
+impl Variant {
+    #[builder(visibility = "pub")]
+    fn new(
+        relations: Vec<String>,
+        idn_table: Option<String>,
+        variant_names: Vec<VariantName>,
+    ) -> Self {
+        Self {
+            relations: to_opt_vectorstringish(relations),
+            idn_table,
+            variant_names: to_opt_vec(variant_names),
+        }
+    }
+
+    /// Convenience method to get relations.
+    pub fn relations(&self) -> &Vec<String> {
+        self.relations
+            .as_ref()
+            .map(|v| v.vec())
+            .unwrap_or(&EMPTY_VEC_STRING)
+    }
+
+    /// Convenience method to get variant names.
+    pub fn variant_names(&self) -> &Vec<VariantName> {
+        self.variant_names.as_ref().unwrap_or(&EMPTY_VARIANT_NAMES)
+    }
+
+    /// Convenience method.
+    pub fn idn_table(&self) -> Option<&str> {
+        self.idn_table.as_deref()
+    }
+}
+
+static EMPTY_LINKS: Vec<Link> = vec![];
+static EMPTY_EVENTS: Vec<Event> = vec![];
+
+/// Represents `dsData`.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct DsDatum {
+    #[serde(rename = "keyTag")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub key_tag: Option<Numberish<u32>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub algorithm: Option<Numberish<u8>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub digest: Option<String>,
+
+    #[serde(rename = "digestType")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub digest_type: Option<Numberish<u8>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub links: Option<Links>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub events: Option<Events>,
+}
+
+#[buildstructor::buildstructor]
+impl DsDatum {
+    /// Builder for `dsData`
+    #[builder(visibility = "pub")]
+    fn new(
+        key_tag: Option<u32>,
+        algorithm: Option<u8>,
+        digest: Option<String>,
+        digest_type: Option<u8>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+    ) -> Self {
+        Self {
+            key_tag: key_tag.map(Numberish::<u32>::from),
+            algorithm: algorithm.map(Numberish::<u8>::from),
+            digest,
+            digest_type: digest_type.map(Numberish::<u8>::from),
+            links: to_opt_vec(links),
+            events: to_opt_vec(events),
+        }
+    }
+
+    /// Convenience method to get links.
+    pub fn links(&self) -> &Vec<Link> {
+        self.links.as_ref().unwrap_or(&EMPTY_LINKS)
+    }
+
+    /// Convenience method to get events.
+    pub fn events(&self) -> &Vec<Event> {
+        self.events.as_ref().unwrap_or(&EMPTY_EVENTS)
+    }
+
+    /// Returns a u32 if it was given, otherwise None.
+    pub fn key_tag(&self) -> Option<u32> {
+        self.key_tag.as_ref().and_then(|n| n.as_u32())
+    }
+
+    /// Returns a u8 if it was given, otherwise None.
+    pub fn digest_type(&self) -> Option<u8> {
+        self.digest_type.as_ref().and_then(|n| n.as_u8())
+    }
+
+    /// Convenience method.
+    pub fn digest(&self) -> Option<&str> {
+        self.digest.as_deref()
+    }
+}
+
+/// Represents `keyData`.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct KeyDatum {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub flags: Option<Numberish<u16>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub protocol: Option<Numberish<u8>>,
+
+    #[serde(rename = "publicKey")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub public_key: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub algorithm: Option<Numberish<u8>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub links: Option<Links>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub events: Option<Events>,
+}
+
+#[buildstructor::buildstructor]
+impl KeyDatum {
+    /// Builder for `keyData`
+    #[builder(visibility = "pub")]
+    fn new(
+        flags: Option<u16>,
+        protocol: Option<u8>,
+        public_key: Option<String>,
+        algorithm: Option<u8>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+    ) -> Self {
+        Self {
+            flags: flags.map(Numberish::<u16>::from),
+            protocol: protocol.map(Numberish::<u8>::from),
+            public_key,
+            algorithm: algorithm.map(Numberish::<u8>::from),
+            links: to_opt_vec(links),
+            events: to_opt_vec(events),
+        }
+    }
+
+    /// Convenience method to get links.
+    pub fn links(&self) -> &Vec<Link> {
+        self.links.as_ref().unwrap_or(&EMPTY_LINKS)
+    }
+
+    /// Convenience method to get events.
+    pub fn events(&self) -> &Vec<Event> {
+        self.events.as_ref().unwrap_or(&EMPTY_EVENTS)
+    }
+
+    /// Returns a u16 if it was given, otherwise None.
+    pub fn flags(&self) -> Option<u16> {
+        self.flags.as_ref().and_then(|n| n.as_u16())
+    }
+
+    /// Returns a u8 if it was given, otherwise None.
+    pub fn protocol(&self) -> Option<u8> {
+        self.protocol.as_ref().and_then(|n| n.as_u8())
+    }
+
+    /// Returns a u8 if it was given, otherwise None.
+    pub fn algorithm(&self) -> Option<u8> {
+        self.algorithm.as_ref().and_then(|n| n.as_u8())
+    }
+
+    /// Convenience method.
+    pub fn public_key(&self) -> Option<&str> {
+        self.public_key.as_deref()
+    }
+}
+
+static EMPTY_DS_DATA: Vec<DsDatum> = vec![];
+static EMPTY_KEY_DATA: Vec<KeyDatum> = vec![];
+
+/// Represents the DNSSEC information of a domain.
+///
+/// The following shows how to use the builders to
+/// create a domain with secure DNS informaiton.
+///
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// // Builds DNS security `keyData`.
+/// let key_datum = KeyDatum::builder()
+///     .flags(257)
+///     .protocol(3)
+///     .algorithm(8)
+///     .public_key("AwEAAa6eDzronzjEDbT...Jg1M5N rBSPkuXpdFE=")
+///     .build();
+///
+/// // Builds DNS security `dsData`.
+/// let ds_datum = DsDatum::builder()
+///     .algorithm(13)
+///     .key_tag(20149)
+///     .digest_type(2)
+///     .digest("cf066bceadb799a27b62e3e82dc2e4da314c1807db98f13d82f0043b1418cf4e")
+///     .build();
+///
+/// // Builds DNS security.
+/// let secure_dns = SecureDns::builder()
+///     .ds_data(ds_datum)
+///     .key_data(key_datum)
+///     .zone_signed(true)
+///     .delegation_signed(false)
+///     .max_sig_life(604800)
+///     .build();
+///
+/// // Builds `domain` with DNS security.
+/// let domain = Domain::builder()
+///     .ldh_name("example.com")
+///     .handle("EXAMPLE-DOMAIN")
+///     .status("active")
+///     .secure_dns(secure_dns)
+///     .build();
+/// ```
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct SecureDns {
+    #[serde(rename = "zoneSigned")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub zone_signed: Option<Boolish>,
+
+    #[serde(rename = "delegationSigned")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub delegation_signed: Option<Boolish>,
+
+    #[serde(rename = "maxSigLife")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub max_sig_life: Option<Numberish<u64>>,
+
+    #[serde(rename = "dsData")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ds_data: Option<Vec<DsDatum>>,
+
+    #[serde(rename = "keyData")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub key_data: Option<Vec<KeyDatum>>,
+}
+
+#[buildstructor::buildstructor]
+impl SecureDns {
+    /// Builder for `secureDNS`.
+    #[builder(visibility = "pub")]
+    fn new(
+        zone_signed: Option<bool>,
+        delegation_signed: Option<bool>,
+        max_sig_life: Option<u64>,
+        ds_datas: Vec<DsDatum>,
+        key_datas: Vec<KeyDatum>,
+    ) -> Self {
+        Self {
+            zone_signed: zone_signed.map(Boolish::from),
+            delegation_signed: delegation_signed.map(Boolish::from),
+            max_sig_life: max_sig_life.map(Numberish::<u64>::from),
+            ds_data: to_opt_vec(ds_datas),
+            key_data: to_opt_vec(key_datas),
+        }
+    }
+
+    /// Convenience method to get ds data.
+    pub fn ds_data(&self) -> &Vec<DsDatum> {
+        self.ds_data.as_ref().unwrap_or(&EMPTY_DS_DATA)
+    }
+
+    /// Convenience method to get key data.
+    pub fn key_data(&self) -> &Vec<KeyDatum> {
+        self.key_data.as_ref().unwrap_or(&EMPTY_KEY_DATA)
+    }
+
+    /// Returns true if a truish value was given, otherwise false.
+    pub fn zone_signed(&self) -> bool {
+        self.zone_signed.as_ref().map_or(false, |b| b.into_bool())
+    }
+
+    /// Returns true if a truish value was given, otherwise false.
+    pub fn delegation_signed(&self) -> bool {
+        self.delegation_signed
+            .as_ref()
+            .map_or(false, |b| b.into_bool())
+    }
+
+    /// Returns max_sig_life as a u64 if it was given, otherwise None.
+    pub fn max_sig_life(&self) -> Option<u64> {
+        self.max_sig_life.as_ref().and_then(|n| n.as_u64())
+    }
+}
+
+static EMPTY_PUBLIC_IDS: Vec<PublicId> = vec![];
+static EMPTY_NAMESERVERS: Vec<Nameserver> = vec![];
+
+/// Represents an RDAP [domain](https://rdap.rcode3.com/protocol/object_classes.html#domain) response.
+///
+/// Using the builder is recommended to construct this structure as it
+/// will fill-in many of the mandatory fields.
+/// The following is an example.
+///
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let domain = Domain::builder()
+///   .ldh_name("foo.example.com")
+///   .handle("foo_example_com-1")
+///   .status("active")
+///   .build();
+/// let c = serde_json::to_string_pretty(&domain).unwrap();
+/// eprintln!("{c}");
+/// ```
+///
+/// This will produce the following.
+///
+/// ```norust
+/// {
+///   "rdapConformance": [
+///     "rdap_level_0"
+///   ],
+///   "objectClassName": "domain",
+///   "handle": "foo_example_com-1",
+///   "status": [
+///     "active"
+///   ],
+///   "ldhName": "foo.example.com"
+/// }
+/// ```
+///
+/// Domains have many sub-structures that are also constructed
+/// using builders, which may then be passed into a Domain
+/// builder.
+///
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let nameservers = vec![
+///     Nameserver::builder()
+///         .ldh_name("ns1.example.com")
+///         .address("127.0.0.1")
+///         .build()
+///         .unwrap(),
+///     Nameserver::builder()
+///         .ldh_name("ns2.example.com")
+///         .build()
+///         .unwrap(),
+/// ];
+///
+/// let ds_datum = DsDatum::builder()
+///         .algorithm(13)
+///         .key_tag(20149)
+///         .digest_type(2)
+///         .digest("cf066bceadb799a27b62e3e82dc2e4da314c1807db98f13d82f0043b1418cf4e")
+///         .build();
+///
+/// let secure_dns = SecureDns::builder()
+///         .ds_data(ds_datum)
+///         .zone_signed(true)
+///         .delegation_signed(false)
+///         .build();
+///
+/// let domain = Domain::builder()
+///   .ldh_name("foo.example.com")
+///   .handle("foo_example_com-3")
+///   .status("active")
+///   .nameservers(nameservers)
+///   .secure_dns(secure_dns)
+///   .build();
+/// ```
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Domain {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(flatten)]
+    pub object_common: ObjectCommon,
+
+    #[serde(rename = "ldhName")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ldh_name: Option<String>,
+
+    #[serde(rename = "unicodeName")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub unicode_name: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub variants: Option<Vec<Variant>>,
+
+    #[serde(rename = "secureDNS")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub secure_dns: Option<SecureDns>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub nameservers: Option<Vec<Nameserver>>,
+
+    #[serde(rename = "publicIds")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub public_ids: Option<PublicIds>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub network: Option<Network>,
+}
+
+#[buildstructor::buildstructor]
+impl Domain {
+    /// Builds a basic domain object.
+    ///
+    /// ```rust
+    /// use icann_rdap_common::prelude::*;
+    ///
+    /// let domain = Domain::builder()
+    ///   .ldh_name("foo.example.com")
+    ///   .handle("foo_example_com-1")
+    ///   .status("active")
+    ///   .build();
+    /// ```
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new<T: Into<String>>(
+        ldh_name: T,
+        unicode_name: Option<String>,
+        nameservers: Vec<Nameserver>,
+        handle: Option<String>,
+        remarks: Vec<Remark>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+        statuses: Vec<String>,
+        port_43: Option<Port43>,
+        entities: Vec<Entity>,
+        notices: Vec<Notice>,
+        public_ids: Vec<PublicId>,
+        secure_dns: Option<SecureDns>,
+        variants: Vec<Variant>,
+        network: Option<Network>,
+        extensions: Vec<Extension>,
+        redacted: Option<Vec<crate::response::redacted::Redacted>>,
+    ) -> Self {
+        Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .and_notices(to_opt_vec(notices))
+                .build(),
+            object_common: ObjectCommon::domain()
+                .and_handle(handle)
+                .and_remarks(to_opt_vec(remarks))
+                .and_links(to_opt_vec(links))
+                .and_events(to_opt_vec(events))
+                .status(statuses)
+                .and_port_43(port_43)
+                .and_entities(to_opt_vec(entities))
+                .and_redacted(redacted)
+                .build(),
+            ldh_name: Some(ldh_name.into()),
+            unicode_name,
+            variants: to_opt_vec(variants),
+            secure_dns,
+            nameservers: to_opt_vec(nameservers),
+            public_ids: to_opt_vec(public_ids),
+            network,
+        }
+    }
+
+    /// Builds an IDN object.
+    ///
+    /// ```rust
+    /// use icann_rdap_common::prelude::*;
+    ///
+    /// let domain = Domain::idn()
+    ///   .unicode_name("foo.example.com")
+    ///   .handle("foo_example_com-1")
+    ///   .status("active")
+    ///   .build();
+    /// ```
+    #[builder(entry = "idn", visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_idn<T: Into<String>>(
+        ldh_name: Option<String>,
+        unicode_name: T,
+        nameservers: Vec<Nameserver>,
+        handle: Option<String>,
+        remarks: Vec<Remark>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+        statuses: Vec<String>,
+        port_43: Option<Port43>,
+        entities: Vec<Entity>,
+        notices: Vec<Notice>,
+        public_ids: Vec<PublicId>,
+        secure_dns: Option<SecureDns>,
+        variants: Vec<Variant>,
+        network: Option<Network>,
+        extensions: Vec<Extension>,
+    ) -> Self {
+        Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .and_notices(to_opt_vec(notices))
+                .build(),
+            object_common: ObjectCommon::domain()
+                .and_handle(handle)
+                .and_remarks(to_opt_vec(remarks))
+                .and_links(to_opt_vec(links))
+                .and_events(to_opt_vec(events))
+                .status(statuses)
+                .and_port_43(port_43)
+                .and_entities(to_opt_vec(entities))
+                .build(),
+            ldh_name,
+            unicode_name: Some(unicode_name.into()),
+            variants: to_opt_vec(variants),
+            secure_dns,
+            nameservers: to_opt_vec(nameservers),
+            public_ids: to_opt_vec(public_ids),
+            network,
+        }
+    }
+
+    /// Convenience method to get the public IDs.
+    pub fn public_ids(&self) -> &Vec<PublicId> {
+        self.public_ids.as_ref().unwrap_or(&EMPTY_PUBLIC_IDS)
+    }
+
+    /// Convenience method to get the nameservers.
+    pub fn nameservers(&self) -> &Vec<Nameserver> {
+        self.nameservers.as_ref().unwrap_or(&EMPTY_NAMESERVERS)
+    }
+
+    /// Convenience method.
+    pub fn ldh_name(&self) -> Option<&str> {
+        self.ldh_name.as_deref()
+    }
+
+    /// Convenience method.
+    pub fn unicode_name(&self) -> Option<&str> {
+        self.unicode_name.as_deref()
+    }
+}
+
+impl ToResponse for Domain {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::Domain(Box::new(self))
+    }
+}
+
+impl GetSelfLink for Domain {
+    fn get_self_link(&self) -> Option<&Link> {
+        self.object_common.get_self_link()
+    }
+}
+
+impl SelfLink for Domain {
+    fn set_self_link(mut self, link: Link) -> Self {
+        self.object_common = self.object_common.set_self_link(link);
+        self
+    }
+}
+
+impl ToChild for Domain {
+    fn to_child(mut self) -> Self {
+        self.common = Common {
+            rdap_conformance: None,
+            notices: None,
+        };
+        self
+    }
+}
+
+impl CommonFields for Domain {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ObjectCommonFields for Domain {
+    fn object_common(&self) -> &ObjectCommon {
+        &self.object_common
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use crate::response::{types::Link, SelfLink};
+
+    use super::Domain;
+
+    #[test]
+    fn GIVEN_domain_WHEN_deserialize_THEN_success() {
+        // GIVEN
+        let expected = r#"
+        {
+          "objectClassName" : "domain",
+          "handle" : "XXXX",
+          "ldhName" : "xn--fo-5ja.example",
+          "unicodeName" : "fóo.example",
+          "variants" :
+          [
+            {
+              "relation" : [ "registered", "conjoined" ],
+              "variantNames" :
+              [
+                {
+                  "ldhName" : "xn--fo-cka.example",
+                  "unicodeName" : "fõo.example"
+                },
+                {
+                  "ldhName" : "xn--fo-fka.example",
+                  "unicodeName" : "föo.example"
+                }
+              ]
+            },
+            {
+              "relation" : [ "unregistered", "registration restricted" ],
+              "idnTable": ".EXAMPLE Swedish",
+              "variantNames" :
+              [
+                {
+                  "ldhName": "xn--fo-8ja.example",
+                  "unicodeName" : "fôo.example"
+                }
+              ]
+
+            }
+          ],
+          "status" : [ "locked", "transfer prohibited" ],
+          "publicIds":[
+            {
+              "type":"ENS_Auth ID",
+              "identifier":"1234567890"
+            }
+          ],
+          "nameservers" :
+          [
+            {
+              "objectClassName" : "nameserver",
+              "handle" : "XXXX",
+              "ldhName" : "ns1.example.com",
+              "status" : [ "active" ],
+              "ipAddresses" :
+              {
+                "v6": [ "2001:db8::123", "2001:db8::124" ],
+                "v4": [ "192.0.2.1", "192.0.2.2" ]
+              },
+              "remarks" :
+              [
+                {
+                  "description" :
+                  [
+                    "She sells sea shells down by the sea shore.",
+                    "Originally written by Terry Sullivan."
+                  ]
+                }
+              ],
+              "links" :
+              [
+                {
+                  "value" : "https://example.net/nameserver/ns1.example.com",
+                  "rel" : "self",
+                  "href" : "https://example.net/nameserver/ns1.example.com",
+                  "type" : "application/rdap+json"
+                }
+              ],
+              "events" :
+              [
+                {
+                  "eventAction" : "registration",
+                  "eventDate" : "1990-12-31T23:59:59Z"
+                },
+                {
+                  "eventAction" : "last changed",
+                  "eventDate" : "1991-12-31T23:59:59Z"
+                }
+              ]
+            },
+            {
+              "objectClassName" : "nameserver",
+              "handle" : "XXXX",
+              "ldhName" : "ns2.example.com",
+              "status" : [ "active" ],
+              "ipAddresses" :
+              {
+                "v6" : [ "2001:db8::125", "2001:db8::126" ],
+                "v4" : [ "192.0.2.3", "192.0.2.4" ]
+              },
+              "remarks" :
+              [
+                {
+                  "description" :
+                  [
+                    "She sells sea shells down by the sea shore.",
+                    "Originally written by Terry Sullivan."
+                  ]
+                }
+              ],
+              "links" :
+              [
+                {
+                  "value" : "https://example.net/nameserver/ns2.example.com",
+                  "rel" : "self",
+                  "href" : "https://example.net/nameserver/ns2.example.com",
+                  "type" : "application/rdap+json"
+                }
+              ],
+              "events" :
+              [
+                {
+                  "eventAction" : "registration",
+                  "eventDate" : "1990-12-31T23:59:59Z"
+                },
+                {
+                  "eventAction" : "last changed",
+                  "eventDate" : "1991-12-31T23:59:59Z"
+                }
+              ]
+            }
+          ],
+          "secureDNS":
+          {
+
+             "zoneSigned": true,
+             "delegationSigned": true,
+             "maxSigLife": 604800,
+             "keyData":
+             [
+               {
+                 "flags": 257,
+                 "protocol": 3,
+                 "algorithm": 8,
+                 "publicKey": "AwEAAa6eDzronzjEDbT...Jg1M5N rBSPkuXpdFE=",
+                 "events":
+                 [
+                   {
+                     "eventAction": "last changed",
+                     "eventDate": "2012-07-23T05:15:47Z"
+                   }
+                 ]
+               }
+             ]
+          },
+          "remarks" :
+          [
+            {
+              "description" :
+              [
+                "She sells sea shells down by the sea shore.",
+                "Originally written by Terry Sullivan."
+              ]
+            }
+          ],
+          "links" :
+          [
+            {
+              "value": "https://example.net/domain/xn--fo-5ja.example",
+              "rel" : "self",
+              "href" : "https://example.net/domain/xn--fo-5ja.example",
+              "type" : "application/rdap+json"
+            }
+          ],
+          "port43" : "whois.example.net",
+          "events" :
+          [
+            {
+              "eventAction" : "registration",
+              "eventDate" : "1990-12-31T23:59:59Z"
+            },
+            {
+              "eventAction" : "last changed",
+              "eventDate" : "1991-12-31T23:59:59Z",
+              "eventActor" : "joe@example.com"
+            },
+            {
+              "eventAction" : "transfer",
+              "eventDate" : "1991-12-31T23:59:59Z",
+              "eventActor" : "joe@example.com"
+            },
+            {
+              "eventAction" : "expiration",
+              "eventDate" : "2016-12-31T23:59:59Z",
+              "eventActor" : "joe@example.com"
+            }
+          ],
+          "entities" :
+          [
+            {
+              "objectClassName" : "entity",
+              "handle" : "XXXX",
+              "vcardArray":[
+                "vcard",
+                [
+                  ["version", {}, "text", "4.0"],
+                  ["fn", {}, "text", "Joe User"],
+                  ["kind", {}, "text", "individual"],
+                  ["lang", {
+                    "pref":"1"
+                  }, "language-tag", "fr"],
+                  ["lang", {
+                    "pref":"2"
+                  }, "language-tag", "en"],
+                  ["org", {
+                    "type":"work"
+                  }, "text", "Example"],
+                  ["title", {}, "text", "Research Scientist"],
+                  ["role", {}, "text", "Project Lead"],
+                  ["adr",
+                    { "type":"work" },
+                    "text",
+                    [
+                      "",
+                      "Suite 1234",
+                      "4321 Rue Somewhere",
+                      "Quebec",
+                      "QC",
+                      "G1V 2M2",
+                      "Canada"
+                    ]
+
+                  ],
+                  ["tel",
+                    { "type":["work", "voice"], "pref":"1" },
+                    "uri", "tel:+1-555-555-1234;ext=102"
+                  ],
+                  ["email",
+                    { "type":"work" },
+                    "text", "joe.user@example.com"
+                  ]
+                ]
+              ],
+              "status" : [ "validated", "locked" ],
+              "roles" : [ "registrant" ],
+              "remarks" :
+              [
+                {
+                  "description" :
+                  [
+                    "She sells sea shells down by the sea shore.",
+                    "Originally written by Terry Sullivan."
+                  ]
+                }
+              ],
+              "links" :
+              [
+                {
+                  "value" : "https://example.net/entity/XXXX",
+                  "rel" : "self",
+                  "href" : "https://example.net/entity/XXXX",
+                  "type" : "application/rdap+json"
+                }
+              ],
+              "events" :
+              [
+                {
+                  "eventAction" : "registration",
+                  "eventDate" : "1990-12-31T23:59:59Z"
+                },
+                {
+                  "eventAction" : "last changed",
+                  "eventDate" : "1991-12-31T23:59:59Z"
+                }
+              ]
+            }
+          ]
+        }            
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<Domain>(expected);
+
+        // THEN
+        let actual = actual.unwrap();
+        assert_eq!(actual.object_common.object_class_name, "domain");
+        assert!(actual.object_common.handle.is_some());
+        assert!(actual.ldh_name.is_some());
+        assert!(actual.unicode_name.is_some());
+        assert!(actual.variants.is_some());
+        assert!(actual.public_ids.is_some());
+        assert!(actual.object_common.remarks.is_some());
+        assert!(actual.object_common.links.is_some());
+        assert!(actual.object_common.events.is_some());
+        assert!(actual.object_common.port_43.is_some());
+        assert!(actual.object_common.entities.is_some());
+        assert!(actual.secure_dns.is_some());
+    }
+
+    #[test]
+    fn GIVEN_no_self_links_WHEN_set_self_link_THEN_link_is_only_one() {
+        // GIVEN
+        let mut domain = Domain::builder()
+            .ldh_name("foo.example")
+            .link(
+                Link::builder()
+                    .href("http://bar.example")
+                    .value("http://bar.example")
+                    .rel("unknown")
+                    .build(),
+            )
+            .build();
+
+        // WHEN
+        domain = domain.set_self_link(
+            Link::builder()
+                .href("http://foo.example")
+                .value("http://foo.example")
+                .rel("unknown")
+                .build(),
+        );
+
+        // THEN
+        assert_eq!(
+            domain
+                .object_common
+                .links
+                .expect("links are empty")
+                .iter()
+                .filter(|link| link.is_relation("self"))
+                .count(),
+            1
+        );
+    }
+}

icann-rdap-common/src/response/entity.rs

@@ -0,0 +1,420 @@
+//! Entity object class.
+use {
+    crate::{
+        contact::Contact,
+        prelude::{Common, Extension, ObjectCommon},
+    },
+    serde::{Deserialize, Serialize},
+    serde_json::Value,
+    strum_macros::{Display, EnumString},
+};
+
+use super::{
+    autnum::Autnum,
+    network::Network,
+    to_opt_vec, to_opt_vectorstringish,
+    types::{Events, Link, PublicIds},
+    CommonFields, Event, GetSelfLink, Notice, ObjectCommonFields, Port43, PublicId, Remark,
+    SelfLink, ToChild, ToResponse, VectorStringish, EMPTY_VEC_STRING,
+};
+
+/// Represents an RDAP [entity](https://rdap.rcode3.com/protocol/object_classes.html#entity) response.
+///
+/// Use of the builder is recommended when constructing this structure as it
+/// will fill-in the mandatory fields.
+/// The following is an example.
+///
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let contact = Contact::builder()
+///   .kind("individual")
+///   .full_name("Bob Smurd")
+///   .build();
+///
+/// let entity = Entity::builder()
+///   .handle("foo_example_com-1")
+///   .status("active")
+///   .role("registrant")
+///   .contact(contact)
+///   .build();
+/// let c = serde_json::to_string_pretty(&entity).unwrap();
+/// eprintln!("{c}");
+/// ```
+///
+/// This will produce the following.
+///
+/// ```norust
+/// {
+///   "rdapConformance": [
+///     "rdap_level_0"
+///   ],
+///   "objectClassName": "entity",
+///   "handle": "foo_example_com-1",
+///   "status": [
+///     "active"
+///   ],
+///   "vcardArray": [
+///     "vcard",
+///     [
+///       [
+///         "version",
+///         {},
+///         "text",
+///         "4.0"
+///       ],
+///       [
+///         "fn",
+///         {},
+///         "text",
+///         "Bob Smurd"
+///       ],
+///       [
+///         "kind",
+///         {},
+///         "text",
+///         "individual"
+///       ]
+///     ]
+///   ],
+///   "roles": [
+///     "registrant"
+///   ]
+/// }
+/// ```
+///
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Entity {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(flatten)]
+    pub object_common: ObjectCommon,
+
+    #[serde(rename = "vcardArray")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub vcard_array: Option<Vec<Value>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub roles: Option<VectorStringish>,
+
+    #[serde(rename = "publicIds")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub public_ids: Option<PublicIds>,
+
+    #[serde(rename = "asEventActor")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub as_event_actor: Option<Events>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub autnums: Option<Vec<Autnum>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub networks: Option<Vec<Network>>,
+}
+
+static EMPTY_PUBLIC_IDS: Vec<PublicId> = vec![];
+static EMPTY_AS_EVENT_ACTORS: Vec<Event> = vec![];
+static EMPTY_AUTNUMS: Vec<Autnum> = vec![];
+static EMPTY_NETWORKS: Vec<Network> = vec![];
+
+#[buildstructor::buildstructor]
+impl Entity {
+    /// Builds a basic autnum object.
+    ///
+    /// ```rust
+    /// use icann_rdap_common::prelude::*;
+    ///
+    /// let contact = Contact::builder()
+    ///   .kind("individual")
+    ///   .full_name("Bob Smurd")
+    ///   .build();
+    ///
+    /// let entity = Entity::builder()
+    ///   .handle("foo_example_com-1")
+    ///   .status("active")
+    ///   .role("registrant")
+    ///   .contact(contact)
+    ///   .build();
+    /// ```
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new<T: Into<String>>(
+        handle: T,
+        remarks: Vec<Remark>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+        statuses: Vec<String>,
+        port_43: Option<Port43>,
+        entities: Vec<Entity>,
+        as_event_actors: Vec<Event>,
+        contact: Option<Contact>,
+        roles: Vec<String>,
+        public_ids: Vec<PublicId>,
+        notices: Vec<Notice>,
+        networks: Vec<Network>,
+        autnums: Vec<Autnum>,
+        extensions: Vec<Extension>,
+        redacted: Option<Vec<crate::response::redacted::Redacted>>,
+    ) -> Self {
+        Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .and_notices(to_opt_vec(notices))
+                .build(),
+            object_common: ObjectCommon::entity()
+                .handle(handle.into())
+                .and_remarks(to_opt_vec(remarks))
+                .and_links(to_opt_vec(links))
+                .and_events(to_opt_vec(events))
+                .status(statuses)
+                .and_port_43(port_43)
+                .and_entities(to_opt_vec(entities))
+                .and_redacted(redacted)
+                .build(),
+            vcard_array: contact.map(|c| c.to_vcard()),
+            roles: to_opt_vectorstringish(roles),
+            public_ids: to_opt_vec(public_ids),
+            as_event_actor: to_opt_vec(as_event_actors),
+            autnums: to_opt_vec(autnums),
+            networks: to_opt_vec(networks),
+        }
+    }
+
+    /// Convenience method to get a [Contact] from the impentrable vCard.
+    pub fn contact(&self) -> Option<Contact> {
+        let vcard = self.vcard_array.as_ref()?;
+        Contact::from_vcard(vcard)
+    }
+
+    /// Convenience method to get the roles.
+    pub fn roles(&self) -> &Vec<String> {
+        self.roles
+            .as_ref()
+            .map(|v| v.vec())
+            .unwrap_or(&EMPTY_VEC_STRING)
+    }
+
+    /// Convenience method to get the public IDs.
+    pub fn public_ids(&self) -> &Vec<PublicId> {
+        self.public_ids.as_ref().unwrap_or(&EMPTY_PUBLIC_IDS)
+    }
+
+    /// Convenience method to get the events this entity acted on.
+    pub fn as_event_actors(&self) -> &Vec<Event> {
+        self.as_event_actor
+            .as_ref()
+            .unwrap_or(&EMPTY_AS_EVENT_ACTORS)
+    }
+
+    /// Convenience method to get the autnums.
+    pub fn autnums(&self) -> &Vec<Autnum> {
+        self.autnums.as_ref().unwrap_or(&EMPTY_AUTNUMS)
+    }
+
+    /// Convenience method to get the networks.
+    pub fn networks(&self) -> &Vec<Network> {
+        self.networks.as_ref().unwrap_or(&EMPTY_NETWORKS)
+    }
+}
+
+impl ToResponse for Entity {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::Entity(Box::new(self))
+    }
+}
+
+impl GetSelfLink for Entity {
+    fn get_self_link(&self) -> Option<&Link> {
+        self.object_common.get_self_link()
+    }
+}
+
+impl SelfLink for Entity {
+    fn set_self_link(mut self, link: Link) -> Self {
+        self.object_common = self.object_common.set_self_link(link);
+        self
+    }
+}
+
+impl ToChild for Entity {
+    fn to_child(mut self) -> Self {
+        self.common = Common {
+            rdap_conformance: None,
+            notices: None,
+        };
+        self
+    }
+}
+
+impl CommonFields for Entity {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ObjectCommonFields for Entity {
+    fn object_common(&self) -> &ObjectCommon {
+        &self.object_common
+    }
+}
+
+/// IANA registered roles for entities.
+#[derive(PartialEq, Eq, Debug, EnumString, Display)]
+#[strum(serialize_all = "lowercase")]
+pub enum EntityRole {
+    Registrant,
+    Technical,
+    Administrative,
+    Abuse,
+    Billing,
+    Registrar,
+    Reseller,
+    Sponsor,
+    Proxy,
+    Notifications,
+    Noc,
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use super::Entity;
+
+    #[test]
+    fn GIVEN_entity_WHEN_deserialize_THEN_success() {
+        // GIVEN
+        let expected = r#"
+            {
+              "objectClassName" : "entity",
+              "handle":"XXXX",
+              "vcardArray":[
+                "vcard",
+                [
+                  ["version", {}, "text", "4.0"],
+                  ["fn", {}, "text", "Joe User"],
+                  ["n", {}, "text",
+                    ["User", "Joe", "", "", ["ing. jr", "M.Sc."]]
+                  ],
+                  ["kind", {}, "text", "individual"],
+                  ["lang", {
+                    "pref":"1"
+                  }, "language-tag", "fr"],
+                  ["lang", {
+                    "pref":"2"
+                  }, "language-tag", "en"],
+                  ["org", {
+                    "type":"work"
+                  }, "text", "Example"],
+                  ["title", {}, "text", "Research Scientist"],
+                  ["role", {}, "text", "Project Lead"],
+                  ["adr",
+                    { "type":"work" },
+                    "text",
+                    [
+                      "",
+                      "Suite 1234",
+                      "4321 Rue Somewhere",
+                      "Quebec",
+                      "QC",
+                      "G1V 2M2",
+                      "Canada"
+                    ]
+                  ],
+                  ["adr",
+                    {
+                      "type":"home",
+                      "label":"123 Maple Ave\nSuite 90001\nVancouver\nBC\n1239\n"
+                    },
+                    "text",
+                    [
+                      "", "", "", "", "", "", ""
+                    ]
+                  ],
+                  ["tel",
+                    {
+                      "type":["work", "voice"],
+                      "pref":"1"
+                    },
+                    "uri",
+                    "tel:+1-555-555-1234;ext=102"
+                  ],
+                  ["tel",
+                    { "type":["work", "cell", "voice", "video", "text"] },
+                    "uri",
+                    "tel:+1-555-555-4321"
+                  ],
+                  ["email",
+                    { "type":"work" },
+                    "text",
+                    "joe.user@example.com"
+                  ],
+                  ["geo", {
+                    "type":"work"
+                  }, "uri", "geo:46.772673,-71.282945"],
+                  ["key",
+                    { "type":"work" },
+                    "uri",
+                    "https://www.example.com/joe.user/joe.asc"
+                  ],
+                  ["tz", {},
+                    "utc-offset", "-05:00"],
+                  ["url", { "type":"home" },
+                    "uri", "https://example.org"]
+                ]
+              ],
+              "roles":[ "registrar" ],
+              "publicIds":[
+                {
+                  "type":"IANA Registrar ID",
+                  "identifier":"1"
+                }
+              ],
+              "remarks":[
+                {
+                  "description":[
+                    "She sells sea shells down by the sea shore.",
+                    "Originally written by Terry Sullivan."
+                  ]
+                }
+              ],
+              "links":[
+                {
+                  "value":"https://example.com/entity/XXXX",
+                  "rel":"self",
+                  "href":"https://example.com/entity/XXXX",
+                  "type" : "application/rdap+json"
+                }
+              ],
+              "events":[
+                {
+                  "eventAction":"registration",
+                  "eventDate":"1990-12-31T23:59:59Z"
+                }
+              ],
+              "asEventActor":[
+
+                {
+                  "eventAction":"last changed",
+                  "eventDate":"1991-12-31T23:59:59Z"
+                }
+              ]
+            }
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<Entity>(expected);
+
+        // THEN
+        let actual = actual.unwrap();
+        assert_eq!(actual.object_common.object_class_name, "entity");
+        assert!(actual.object_common.handle.is_some());
+        assert!(actual.vcard_array.is_some());
+        assert!(actual.roles.is_some());
+        assert!(actual.public_ids.is_some());
+        assert!(actual.object_common.remarks.is_some());
+        assert!(actual.object_common.links.is_some());
+        assert!(actual.object_common.events.is_some());
+        assert!(actual.as_event_actor.is_some());
+    }
+}

icann-rdap-common/src/response/error.rs

@@ -0,0 +1,119 @@
+//! RFC 9083 Error
+use {
+    crate::prelude::Extension,
+    serde::{Deserialize, Serialize},
+};
+
+use crate::media_types::RDAP_MEDIA_TYPE;
+
+use super::{
+    types::{Link, Notice, NoticeOrRemark},
+    Common, CommonFields, ToResponse,
+};
+
+/// Represents an error response from an RDAP server.
+///
+/// This structure represents the JSON returned by an RDAP server
+/// describing an error.
+/// See [RFC 9083, Section 6](https://datatracker.ietf.org/doc/html/rfc9083#name-error-response-body).
+///
+/// Do not confuse this with [crate::response::RdapResponseError].
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Rfc9083Error {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(rename = "errorCode")]
+    pub error_code: u16,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub title: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub description: Option<Vec<String>>,
+}
+
+#[buildstructor::buildstructor]
+impl Rfc9083Error {
+    /// Creates a new RFC 9083 Error for a specific HTTP error code.
+    #[builder(visibility = "pub")]
+    fn new(error_code: u16, notices: Vec<Notice>, extensions: Vec<Extension>) -> Self {
+        let notices = (!notices.is_empty()).then_some(notices);
+        Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .and_notices(notices)
+                .build(),
+            error_code,
+            title: None,
+            description: None,
+        }
+    }
+
+    /// Creates an RFC 9083 error for an HTTP redirect.
+    #[builder(entry = "redirect", visibility = "pub")]
+    fn new_redirect(url: String, extensions: Vec<Extension>) -> Self {
+        let links = vec![Link::builder()
+            .href(&url)
+            .value(&url)
+            .media_type(RDAP_MEDIA_TYPE)
+            .rel("related")
+            .build()];
+        let notices = vec![Notice(NoticeOrRemark::builder().links(links).build())];
+        Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .notices(notices)
+                .build(),
+            error_code: 307,
+            title: None,
+            description: None,
+        }
+    }
+
+    pub fn is_redirect(&self) -> bool {
+        self.error_code > 299 && self.error_code < 400
+    }
+}
+
+impl CommonFields for Rfc9083Error {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ToResponse for Rfc9083Error {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::ErrorResponse(Box::new(self))
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use super::Rfc9083Error;
+
+    #[test]
+    fn GIVEN_error_code_301_WHEN_is_redirect_THEN_true() {
+        // GIVEN
+        let e = Rfc9083Error::redirect().url("https://foo.example").build();
+
+        // WHEN
+        let actual = e.is_redirect();
+
+        // THEN
+        assert!(actual);
+    }
+
+    #[test]
+    fn GIVEN_error_code_404_WHEN_is_redirect_THEN_false() {
+        // GIVEN
+        let e = Rfc9083Error::builder().error_code(404).build();
+
+        // WHEN
+        let actual = e.is_redirect();
+
+        // THEN
+        assert!(!actual);
+    }
+}

icann-rdap-common/src/response/help.rs

@@ -0,0 +1,40 @@
+//! Server Help Response.
+use {
+    crate::prelude::{Extension, Notice},
+    serde::{Deserialize, Serialize},
+};
+
+use super::{to_opt_vec, Common, CommonFields, ToResponse};
+
+/// Represents an RDAP help response.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Help {
+    #[serde(flatten)]
+    pub common: Common,
+}
+
+#[buildstructor::buildstructor]
+impl Help {
+    /// Builds a basic help response.
+    #[builder(visibility = "pub")]
+    fn new(notices: Vec<Notice>, extensions: Vec<Extension>) -> Self {
+        Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .and_notices(to_opt_vec(notices))
+                .build(),
+        }
+    }
+}
+
+impl CommonFields for Help {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ToResponse for Help {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::Help(Box::new(self))
+    }
+}

icann-rdap-common/src/response/lenient.rs

@@ -0,0 +1,626 @@
+//! Types for more lenient processing of invalid RDAP
+
+use std::{fmt::Display, marker::PhantomData, str::FromStr};
+
+use {
+    serde::{de::Visitor, Deserialize, Deserializer, Serialize},
+    serde_json::Number,
+};
+
+use crate::check::StringListCheck;
+
+/// A type that is suppose to be a vector of strings.
+///
+/// Provides a choice between a string or a vector of strings for deserialization.
+///
+/// This type is provided to be lenient with misbehaving RDAP servers that
+/// serve a string when they are suppose to be serving an array of
+/// strings.
+///
+/// Use one of the From methods for construction.
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let v = VectorStringish::from(vec!["one".to_string(), "two".to_string()]);
+///
+/// // or
+///
+/// let v = VectorStringish::from("one".to_string());
+/// ````
+#[derive(Serialize, Clone, Debug, PartialEq, Eq)]
+#[serde(transparent)]
+pub struct VectorStringish {
+    vec: Vec<String>,
+    #[serde(skip)]
+    is_string: bool,
+}
+
+impl<'de> Deserialize<'de> for VectorStringish {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        deserializer.deserialize_any(VectorStringishVisitor)
+    }
+}
+
+struct VectorStringishVisitor;
+
+impl<'de> Visitor<'de> for VectorStringishVisitor {
+    type Value = VectorStringish;
+
+    fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
+        formatter.write_str("expected an array of strings")
+    }
+
+    fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(VectorStringish {
+            vec: vec![v.to_owned()],
+            is_string: true,
+        })
+    }
+
+    fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
+    where
+        A: serde::de::SeqAccess<'de>,
+    {
+        let mut v = vec![];
+        loop {
+            let n = seq.next_element()?;
+            if let Some(s) = n {
+                v.push(s);
+            } else {
+                break;
+            }
+        }
+        Ok(VectorStringish {
+            vec: v,
+            is_string: false,
+        })
+    }
+}
+
+impl From<String> for VectorStringish {
+    fn from(value: String) -> Self {
+        VectorStringish {
+            vec: vec![value],
+            is_string: false,
+        }
+    }
+}
+
+impl From<&str> for VectorStringish {
+    fn from(value: &str) -> Self {
+        VectorStringish {
+            vec: vec![value.to_owned()],
+            is_string: false,
+        }
+    }
+}
+
+impl From<Vec<String>> for VectorStringish {
+    fn from(value: Vec<String>) -> Self {
+        VectorStringish {
+            vec: value,
+            is_string: false,
+        }
+    }
+}
+
+impl From<VectorStringish> for Vec<String> {
+    fn from(value: VectorStringish) -> Self {
+        value.vec
+    }
+}
+
+impl From<&VectorStringish> for Vec<String> {
+    fn from(value: &VectorStringish) -> Self {
+        value.vec.to_owned()
+    }
+}
+
+impl VectorStringish {
+    /// Consumes and converts it to a `Vec<String>`.
+    pub fn into_vec(self) -> Vec<String> {
+        self.vec
+    }
+
+    /// Gets a reference to the underlying `Vec<String>`.
+    pub fn vec(&self) -> &Vec<String> {
+        &self.vec
+    }
+
+    /// Returns true if the deserialization was as a string.
+    pub fn is_string(&self) -> bool {
+        self.is_string
+    }
+}
+
+impl StringListCheck for VectorStringish {
+    fn is_empty_or_any_empty_or_whitespace(&self) -> bool {
+        self.vec().is_empty_or_any_empty_or_whitespace()
+    }
+
+    fn is_ldh_string_list(&self) -> bool {
+        self.vec().is_ldh_string_list()
+    }
+}
+
+/// Returns `Some(VectorStringish)` if the vector is not empty, otherwise `None`.
+pub fn to_opt_vectorstringish(vec: Vec<String>) -> Option<VectorStringish> {
+    (!vec.is_empty()).then_some(VectorStringish::from(vec))
+}
+
+pub(crate) static EMPTY_VEC_STRING: Vec<String> = vec![];
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+#[serde(untagged)]
+enum BoolishInner {
+    /// Valid RDAP.
+    Bool(bool),
+
+    /// Invalide RDAP.
+    String(String),
+}
+
+/// A type that is suppose to be a boolean.
+///
+/// Provides a choice between a boolean or a string representation of a boolean for deserialization.
+///
+/// This type is provided to be lenient with misbehaving RDAP servers that
+/// serve a string representation of a boolean when they are suppose to be serving a boolean
+///
+/// Use one of the From methods for construction.
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let v = Boolish::from(true);
+/// ````
+///
+/// When converting from a string (as would happen with deserialization),
+/// the values "true", "t", "yes", and "y" (case-insensitive with whitespace trimmed)
+/// will be true, all other values will be false.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+#[serde(transparent)]
+pub struct Boolish {
+    inner: BoolishInner,
+}
+
+impl From<bool> for Boolish {
+    fn from(value: bool) -> Self {
+        Boolish {
+            inner: BoolishInner::Bool(value),
+        }
+    }
+}
+
+impl Display for Boolish {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.into_bool())
+    }
+}
+
+impl Boolish {
+    /// Converts to a bool.
+    pub fn into_bool(&self) -> bool {
+        match &self.inner {
+            BoolishInner::Bool(value) => *value,
+            BoolishInner::String(value) => Boolish::is_true(value),
+        }
+    }
+
+    /// Returns true if the deserialization was as a string.
+    pub fn is_string(&self) -> bool {
+        match &self.inner {
+            BoolishInner::Bool(_) => false,
+            BoolishInner::String(_) => true,
+        }
+    }
+
+    fn is_true(value: &str) -> bool {
+        let s = value.trim().to_lowercase();
+        s == "true" || s == "t" || s == "yes" || s == "y"
+    }
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+#[serde(untagged)]
+enum NumberishInner {
+    /// Valid RDAP.
+    Number(Number),
+
+    /// Invalide RDAP.
+    String(String),
+}
+
+/// A type that is suppose to be a number.
+///
+/// Provides a choice between a number or a string representation of a number for deserialization.
+///
+/// This type is provided to be lenient with misbehaving RDAP servers that
+/// serve a string representation of a number when they are suppose to be serving a number.
+///
+/// Use the From methods for construction.
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let v = Numberish::from(123);
+/// ````
+///
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+#[serde(transparent)]
+pub struct Numberish<T> {
+    inner: NumberishInner,
+    phatom: PhantomData<T>,
+}
+
+impl<T> From<T> for Numberish<T>
+where
+    Number: From<T>,
+{
+    fn from(value: T) -> Self {
+        Numberish {
+            inner: NumberishInner::Number(Number::from(value)),
+            phatom: PhantomData,
+        }
+    }
+}
+
+impl<T> Display for Numberish<T>
+where
+    Number: From<T>,
+{
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "{}",
+            self.as_u64()
+                .map_or("RANGE_ERRROR".to_string(), |u| u.to_string())
+        )
+    }
+}
+
+impl<T> Numberish<T>
+where
+    Number: From<T>,
+{
+    /// Returns true if the deserialization was as a string.
+    pub fn is_string(&self) -> bool {
+        match &self.inner {
+            NumberishInner::Number(_) => false,
+            NumberishInner::String(_) => true,
+        }
+    }
+
+    /// If the `Number` is an integer, represent it as u64 if possible. Returns None otherwise.
+    pub fn as_u64(&self) -> Option<u64> {
+        match &self.inner {
+            NumberishInner::Number(n) => n.as_u64(),
+            NumberishInner::String(s) => Number::from_str(s).ok()?.as_u64(),
+        }
+    }
+
+    /// If the `Number` is an integer, represent it as u32 if possible. Returns None otherwise.
+    pub fn as_u32(&self) -> Option<u32> {
+        match &self.inner {
+            NumberishInner::Number(n) => n.as_u64()?.try_into().ok(),
+            NumberishInner::String(s) => Number::from_str(s).ok()?.as_u64()?.try_into().ok(),
+        }
+    }
+
+    /// If the `Number` is an integer, represent it as u16 if possible. Returns None otherwise.
+    pub fn as_u16(&self) -> Option<u16> {
+        match &self.inner {
+            NumberishInner::Number(n) => n.as_u64()?.try_into().ok(),
+            NumberishInner::String(s) => Number::from_str(s).ok()?.as_u64()?.try_into().ok(),
+        }
+    }
+
+    /// If the `Number` is an integer, represent it as u8 if possible. Returns None otherwise.
+    pub fn as_u8(&self) -> Option<u8> {
+        match &self.inner {
+            NumberishInner::Number(n) => n.as_u64()?.try_into().ok(),
+            NumberishInner::String(s) => Number::from_str(s).ok()?.as_u64()?.try_into().ok(),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use {
+        super::*,
+        serde_json::{from_str, to_string},
+    };
+
+    //
+    // VectorStringish tests
+    //
+
+    #[test]
+    fn test_vectorstringish_serialize_many() {
+        // GIVEN
+        let many = VectorStringish::from(vec!["one".to_string(), "two".to_string()]);
+
+        // WHEN
+        let serialized = to_string(&many).unwrap();
+
+        // THEN
+        assert_eq!(serialized, r#"["one","two"]"#);
+    }
+
+    #[test]
+    fn test_vectorstringish_serialize_one() {
+        // GIVEN
+        let one = VectorStringish::from("one".to_string());
+
+        // WHEN
+        let serialized = to_string(&one).unwrap();
+
+        // THEN
+        assert_eq!(serialized, r#"["one"]"#);
+    }
+
+    #[test]
+    fn test_vectorstringish_deserialize_many() {
+        // GIVEN
+        let json_str = r#"["one","two"]"#;
+
+        // WHEN
+        let deserialized: VectorStringish = from_str(json_str).unwrap();
+
+        // THEN
+        assert_eq!(
+            deserialized.vec(),
+            &vec!["one".to_string(), "two".to_string()]
+        );
+
+        // and THEN is not string
+        assert!(!deserialized.is_string())
+    }
+
+    #[test]
+    fn test_vectorstringish_deserialize_one() {
+        // GIVEN
+        let json_str = r#""one""#;
+
+        // WHEN
+        let deserialized: VectorStringish = from_str(json_str).unwrap();
+
+        // THEN
+        assert_eq!(deserialized.vec(), &vec!["one".to_string()]);
+
+        // and THEN is string
+        assert!(deserialized.is_string())
+    }
+
+    //
+    // Boolish tests
+    //
+
+    #[test]
+    fn test_boolish_serialize_bool() {
+        // GIVEN
+        let b = Boolish::from(true);
+
+        // WHEN
+        let serialized = to_string(&b).unwrap();
+
+        // THEN
+        assert_eq!(serialized, "true");
+    }
+
+    #[test]
+    fn test_boolish_deserialize_bool_true() {
+        // GIVEN
+        let json_str = "true";
+
+        // WHEN
+        let deserialized: Boolish = from_str(json_str).unwrap();
+
+        // THEN
+        assert!(deserialized.into_bool());
+        assert!(!deserialized.is_string());
+    }
+
+    #[test]
+    fn test_boolish_deserialize_bool_false() {
+        // GIVEN
+        let json_str = "false";
+
+        // WHEN
+        let deserialized: Boolish = from_str(json_str).unwrap();
+
+        // THEN
+        assert!(!deserialized.into_bool());
+        assert!(!deserialized.is_string());
+    }
+
+    #[test]
+    fn test_boolish_deserialize_string_true() {
+        // GIVEN
+        let json_str = r#""true""#;
+
+        // WHEN
+        let deserialized: Boolish = from_str(json_str).unwrap();
+
+        // THEN
+        assert!(deserialized.into_bool());
+        assert!(deserialized.is_string());
+    }
+
+    #[test]
+    fn test_boolish_deserialize_string_false() {
+        // GIVEN
+        let json_str = r#""false""#;
+
+        // WHEN
+        let deserialized: Boolish = from_str(json_str).unwrap();
+
+        // THEN
+        assert!(!deserialized.into_bool());
+        assert!(deserialized.is_string());
+    }
+
+    #[test]
+    fn test_boolish_is_true() {
+        // GIVEN various true values
+        let true_values = ["true", "t", "yes", "y", " True ", " T ", " Yes ", " Y "];
+
+        // THEN all are true
+        for value in true_values {
+            assert!(Boolish::is_true(value));
+        }
+    }
+
+    #[test]
+    fn test_boolish_is_false() {
+        // GIVEN various false values
+        let false_values = ["false", "f", "no", "n", "False", "blah", "1", "0", ""];
+
+        // THEN all are false
+        for value in false_values {
+            assert!(!Boolish::is_true(value));
+        }
+    }
+
+    #[test]
+    fn test_boolish_from_bool() {
+        assert!(Boolish::from(true).into_bool());
+        assert!(!Boolish::from(false).into_bool());
+    }
+
+    //
+    // Numberish Tests
+    //
+
+    #[test]
+    fn test_numberish_serialize_number() {
+        // GIVEN a Numberish from a number
+        let n = Numberish::<u32>::from(123);
+
+        // WHEN serialized
+        let serialized = to_string(&n).unwrap();
+
+        // THEN it is the correct string
+        assert_eq!(serialized, "123");
+    }
+
+    #[test]
+    fn test_numberish_deserialize_number() {
+        // GIVEN a JSON string representing a number
+        let json_str = "123";
+
+        // WHEN deserialized
+        let deserialized: Numberish<u32> = from_str(json_str).unwrap();
+
+        // THEN the value is correct and it's not a string
+        assert_eq!(deserialized.as_u32(), Some(123));
+        assert!(!deserialized.is_string());
+    }
+
+    #[test]
+    fn test_numberish_deserialize_string() {
+        // GIVEN a JSON string representing a number as a string
+        let json_str = r#""123""#;
+
+        // WHEN deserialized
+        let deserialized: Numberish<u32> = from_str(json_str).unwrap();
+
+        // THEN the value is correct and it's a string
+        assert_eq!(deserialized.as_u32(), Some(123));
+        assert!(deserialized.is_string());
+    }
+
+    #[test]
+    fn test_numberish_as_u64_number() {
+        // GIVEN a Numberish from a u64
+        let n = Numberish::from(123u64);
+
+        // WHEN as_u64 is called
+        let result = n.as_u64();
+
+        // THEN the result is Some(123)
+        assert_eq!(result, Some(123));
+    }
+
+    #[test]
+    fn test_numberish_as_u64_string_invalid() {
+        // GIVEN a Numberish from a string that does not represent a u64
+        let n = Numberish {
+            inner: NumberishInner::String("abc".to_string()),
+            phatom: PhantomData::<u64>,
+        };
+
+        // WHEN as_u64 is called
+        let result = n.as_u64();
+
+        // THEN the result is None
+        assert_eq!(result, None);
+    }
+
+    #[test]
+    fn test_numberish_as_smaller_types() {
+        // GIVEN a valid number
+        let n = Numberish::from(123u64);
+
+        // THEN smaller type conversions work
+        assert_eq!(n.as_u32(), Some(123));
+        assert_eq!(n.as_u16(), Some(123));
+        assert_eq!(n.as_u8(), Some(123));
+
+        // GIVEN a number too large
+        let n = Numberish::from(u32::MAX as u64 + 1);
+
+        // THEN smaller type conversions fail
+        assert_eq!(n.as_u32(), None);
+        assert_eq!(n.as_u16(), None);
+        assert_eq!(n.as_u8(), None);
+
+        // GIVEN a valid number string
+        let n = Numberish {
+            inner: NumberishInner::String("123".to_string()),
+            phatom: PhantomData::<u64>,
+        };
+
+        // THEN smaller type conversions work
+        assert_eq!(n.as_u32(), Some(123));
+        assert_eq!(n.as_u16(), Some(123));
+        assert_eq!(n.as_u8(), Some(123));
+
+        // GIVEN a number string too large
+        let n = Numberish {
+            inner: NumberishInner::String((u32::MAX as u64 + 1).to_string()),
+            phatom: PhantomData::<u64>,
+        };
+
+        // THEN smaller type conversions fail
+        assert_eq!(n.as_u32(), None);
+    }
+
+    #[test]
+    fn test_numberish_display_number() {
+        let n = Numberish::<u32>::from(123);
+        assert_eq!(format!("{}", n), "123");
+    }
+
+    #[test]
+    fn test_numberish_display_string_valid() {
+        let n = Numberish {
+            inner: NumberishInner::String("123".to_string()),
+            phatom: PhantomData::<u32>,
+        };
+        assert_eq!(format!("{}", n), "123");
+    }
+
+    #[test]
+    fn test_numberish_display_string_invalid() {
+        let n = Numberish {
+            inner: NumberishInner::String("abc".to_string()),
+            phatom: PhantomData::<u32>,
+        };
+        assert_eq!(format!("{}", n), "RANGE_ERRROR");
+    }
+}

icann-rdap-common/src/response/mod.rs

@@ -0,0 +1,652 @@
+//! RDAP structures for parsing and creating RDAP responses.
+use std::any::TypeId;
+
+use {
+    cidr,
+    serde::{Deserialize, Serialize},
+    serde_json::Value,
+    strum_macros::Display,
+    thiserror::Error,
+};
+
+use crate::media_types::RDAP_MEDIA_TYPE;
+
+#[doc(inline)]
+pub use autnum::*;
+#[doc(inline)]
+pub use common::*;
+#[doc(inline)]
+pub use domain::*;
+#[doc(inline)]
+pub use entity::*;
+#[doc(inline)]
+pub use error::*;
+#[doc(inline)]
+pub use help::*;
+#[doc(inline)]
+pub use lenient::*;
+#[doc(inline)]
+pub use nameserver::*;
+#[doc(inline)]
+pub use network::*;
+#[doc(inline)]
+pub use obj_common::*;
+#[doc(inline)]
+pub use search::*;
+#[doc(inline)]
+pub use types::*;
+
+pub(crate) mod autnum;
+pub(crate) mod common;
+pub(crate) mod domain;
+pub(crate) mod entity;
+pub(crate) mod error;
+pub(crate) mod help;
+pub(crate) mod lenient;
+pub(crate) mod nameserver;
+pub(crate) mod network;
+pub(crate) mod obj_common;
+pub mod redacted; // RFC 9537 is not a mainstream extension.
+pub(crate) mod search;
+pub(crate) mod types;
+
+/// An error caused be processing an RDAP response.
+///
+/// This is caused because the JSON constituting the
+/// RDAP response has a problem that cannot be overcome.
+///
+/// Do not confuse this with [Rfc9083Error].
+#[derive(Debug, Error)]
+pub enum RdapResponseError {
+    /// The JSON type is incorrect.
+    #[error("Wrong JSON type: {0}")]
+    WrongJsonType(String),
+
+    /// The type of RDAP response is unknown.
+    #[error("Unknown RDAP response.")]
+    UnknownRdapResponse,
+
+    /// An error has occurred parsing the JSON.
+    #[error(transparent)]
+    SerdeJson(#[from] serde_json::Error),
+
+    /// An error with parsing an IP address.
+    #[error(transparent)]
+    AddrParse(#[from] std::net::AddrParseError),
+
+    /// An error caused with parsing a CIDR address.
+    #[error(transparent)]
+    CidrParse(#[from] cidr::errors::NetworkParseError),
+}
+
+/// The various types of RDAP response.
+///
+/// It can be parsed from JSON using serde:
+///
+/// ```rust
+/// use icann_rdap_common::response::RdapResponse;
+///
+/// let json = r#"
+///   {
+///     "objectClassName": "ip network",
+///     "links": [
+///       {
+///         "value": "http://localhost:3000/rdap/ip/10.0.0.0/16",
+///         "rel": "self",
+///         "href": "http://localhost:3000/rdap/ip/10.0.0.0/16",
+///         "type": "application/rdap+json"
+///       }
+///     ],
+///     "events": [
+///       {
+///         "eventAction": "registration",
+///         "eventDate": "2023-06-16T22:56:49.594173356+00:00"
+///       },
+///       {
+///         "eventAction": "last changed",
+///         "eventDate": "2023-06-16T22:56:49.594189140+00:00"
+///       }
+///     ],
+///     "startAddress": "10.0.0.0",
+///     "endAddress": "10.0.255.255",
+///     "ipVersion": "v4"
+///   }
+/// "#;
+///
+/// let rdap: RdapResponse = serde_json::from_str(json).unwrap();
+/// assert!(matches!(rdap, RdapResponse::Network(_)));
+/// ```
+#[derive(Serialize, Deserialize, Clone, Display, PartialEq, Debug)]
+#[serde(untagged, try_from = "Value")]
+pub enum RdapResponse {
+    // Object Classes
+    Entity(Box<Entity>),
+    Domain(Box<Domain>),
+    Nameserver(Box<Nameserver>),
+    Autnum(Box<Autnum>),
+    Network(Box<Network>),
+
+    // Search Results
+    DomainSearchResults(Box<DomainSearchResults>),
+    EntitySearchResults(Box<EntitySearchResults>),
+    NameserverSearchResults(Box<NameserverSearchResults>),
+
+    // Error
+    ErrorResponse(Box<Rfc9083Error>),
+
+    // Help
+    Help(Box<Help>),
+    // These are all boxed to keep the variant size alligned.
+    // While not completely necessary for all these variants today,
+    // this will prevent an API change in the future when new items
+    // are added to each variant when supporting future RDAP extensions.
+}
+
+impl TryFrom<Value> for RdapResponse {
+    type Error = RdapResponseError;
+
+    fn try_from(value: Value) -> Result<Self, Self::Error> {
+        let response = if let Some(object) = value.as_object() {
+            object
+        } else {
+            return Err(RdapResponseError::WrongJsonType(
+                "response is not an object".to_string(),
+            ));
+        };
+
+        // if it has an objectClassName
+        if let Some(class_name) = response.get("objectClassName") {
+            if let Some(name_str) = class_name.as_str() {
+                return match name_str {
+                    "domain" => Ok(serde_json::from_value::<Domain>(value)?.to_response()),
+                    "entity" => Ok(serde_json::from_value::<Entity>(value)?.to_response()),
+                    "nameserver" => Ok(serde_json::from_value::<Nameserver>(value)?.to_response()),
+                    "autnum" => Ok(serde_json::from_value::<Autnum>(value)?.to_response()),
+                    "ip network" => Ok(serde_json::from_value::<Network>(value)?.to_response()),
+                    _ => Err(RdapResponseError::UnknownRdapResponse),
+                };
+            } else {
+                return Err(RdapResponseError::WrongJsonType(
+                    "'objectClassName' is not a string".to_string(),
+                ));
+            }
+        };
+
+        // else if it is a domain search result
+        if let Some(result) = response.get("domainSearchResults") {
+            if result.is_array() {
+                return Ok(serde_json::from_value::<DomainSearchResults>(value)?.to_response());
+            } else {
+                return Err(RdapResponseError::WrongJsonType(
+                    "'domainSearchResults' is not an array".to_string(),
+                ));
+            }
+        }
+        // else if it is a entity search result
+        if let Some(result) = response.get("entitySearchResults") {
+            if result.is_array() {
+                return Ok(serde_json::from_value::<EntitySearchResults>(value)?.to_response());
+            } else {
+                return Err(RdapResponseError::WrongJsonType(
+                    "'entitySearchResults' is not an array".to_string(),
+                ));
+            }
+        }
+        // else if it is a nameserver search result
+        if let Some(result) = response.get("nameserverSearchResults") {
+            if result.is_array() {
+                return Ok(serde_json::from_value::<NameserverSearchResults>(value)?.to_response());
+            } else {
+                return Err(RdapResponseError::WrongJsonType(
+                    "'nameserverSearchResults' is not an array".to_string(),
+                ));
+            }
+        }
+
+        // else if it has an errorCode
+        if let Some(result) = response.get("errorCode") {
+            if result.is_u64() {
+                return Ok(serde_json::from_value::<Rfc9083Error>(value)?.to_response());
+            } else {
+                return Err(RdapResponseError::WrongJsonType(
+                    "'errorCode' is not an unsigned integer".to_string(),
+                ));
+            }
+        }
+
+        // else if it has a notices then it is help response at this point
+        if let Some(result) = response.get("notices") {
+            if result.is_array() {
+                return Ok(serde_json::from_value::<Help>(value)?.to_response());
+            } else {
+                return Err(RdapResponseError::WrongJsonType(
+                    "'notices' is not an array".to_string(),
+                ));
+            }
+        }
+        Err(RdapResponseError::UnknownRdapResponse)
+    }
+}
+
+impl RdapResponse {
+    pub fn get_type(&self) -> TypeId {
+        match self {
+            Self::Entity(_) => TypeId::of::<Entity>(),
+            Self::Domain(_) => TypeId::of::<Domain>(),
+            Self::Nameserver(_) => TypeId::of::<Nameserver>(),
+            Self::Autnum(_) => TypeId::of::<Autnum>(),
+            Self::Network(_) => TypeId::of::<Network>(),
+            Self::DomainSearchResults(_) => TypeId::of::<DomainSearchResults>(),
+            Self::EntitySearchResults(_) => TypeId::of::<EntitySearchResults>(),
+            Self::NameserverSearchResults(_) => TypeId::of::<NameserverSearchResults>(),
+            Self::ErrorResponse(_) => TypeId::of::<crate::response::Rfc9083Error>(),
+            Self::Help(_) => TypeId::of::<Help>(),
+        }
+    }
+
+    pub fn get_links(&self) -> Option<&Links> {
+        match self {
+            Self::Entity(e) => e.object_common.links.as_ref(),
+            Self::Domain(d) => d.object_common.links.as_ref(),
+            Self::Nameserver(n) => n.object_common.links.as_ref(),
+            Self::Autnum(a) => a.object_common.links.as_ref(),
+            Self::Network(n) => n.object_common.links.as_ref(),
+            Self::DomainSearchResults(_)
+            | Self::EntitySearchResults(_)
+            | Self::NameserverSearchResults(_)
+            | Self::ErrorResponse(_)
+            | Self::Help(_) => None,
+        }
+    }
+
+    pub fn get_conformance(&self) -> Option<&RdapConformance> {
+        match self {
+            Self::Entity(e) => e.common.rdap_conformance.as_ref(),
+            Self::Domain(d) => d.common.rdap_conformance.as_ref(),
+            Self::Nameserver(n) => n.common.rdap_conformance.as_ref(),
+            Self::Autnum(a) => a.common.rdap_conformance.as_ref(),
+            Self::Network(n) => n.common.rdap_conformance.as_ref(),
+            Self::DomainSearchResults(s) => s.common.rdap_conformance.as_ref(),
+            Self::EntitySearchResults(s) => s.common.rdap_conformance.as_ref(),
+            Self::NameserverSearchResults(s) => s.common.rdap_conformance.as_ref(),
+            Self::ErrorResponse(e) => e.common.rdap_conformance.as_ref(),
+            Self::Help(h) => h.common.rdap_conformance.as_ref(),
+        }
+    }
+
+    pub fn has_extension_id(&self, extension_id: ExtensionId) -> bool {
+        self.get_conformance().map_or(false, |conformance| {
+            conformance.contains(&extension_id.to_extension())
+        })
+    }
+
+    pub fn has_extension(&self, extension: &str) -> bool {
+        self.get_conformance().map_or(false, |conformance| {
+            conformance.contains(&Extension::from(extension))
+        })
+    }
+
+    pub fn is_redirect(&self) -> bool {
+        match self {
+            Self::ErrorResponse(e) => e.is_redirect(),
+            _ => false,
+        }
+    }
+}
+
+impl GetSelfLink for RdapResponse {
+    fn get_self_link(&self) -> Option<&Link> {
+        self.get_links()
+            .and_then(|links| links.iter().find(|link| link.is_relation("self")))
+    }
+}
+
+/// A trait for converting structs into an appropriate [RdapResponse] variant.
+pub trait ToResponse {
+    /// Consumes the object and returns an [RdapResponse].
+    fn to_response(self) -> RdapResponse;
+}
+
+/// Trait for getting a link with a `rel` of "self".
+pub trait GetSelfLink {
+    /// Get's the first self link.
+    /// See [crate::response::ObjectCommon::get_self_link()].
+    fn get_self_link(&self) -> Option<&Link>;
+}
+
+/// Train for setting a link with a `rel` of "self".
+pub trait SelfLink: GetSelfLink {
+    /// See [crate::response::ObjectCommon::get_self_link()].
+    fn set_self_link(self, link: Link) -> Self;
+}
+
+/// Gets the `href` of a link with `rel` of "related" and `type` with the RDAP media type.
+pub fn get_related_links(rdap_response: &RdapResponse) -> Vec<&str> {
+    let Some(links) = rdap_response.get_links() else {
+        return vec![];
+    };
+
+    let mut urls: Vec<_> = links
+        .iter()
+        .filter_map(|l| match (&l.href, &l.rel, &l.media_type) {
+            (Some(href), Some(rel), Some(media_type))
+                if rel.eq_ignore_ascii_case("related")
+                    && media_type.eq_ignore_ascii_case(RDAP_MEDIA_TYPE) =>
+            {
+                Some(href.as_str())
+            }
+            _ => None,
+        })
+        .collect();
+
+    // if none are found with correct media type, look for something that looks like an RDAP link
+    if urls.is_empty() {
+        urls = links
+            .iter()
+            .filter(|l| {
+                if let Some(href) = l.href() {
+                    if let Some(rel) = l.rel() {
+                        rel.eq_ignore_ascii_case("related")
+                            && (href.contains("/domain/")
+                                || href.contains("/ip/")
+                                || href.contains("/autnum/")
+                                || href.contains("/nameserver/")
+                                || href.contains("/entity/"))
+                    } else {
+                        false
+                    }
+                } else {
+                    false
+                }
+            })
+            .map(|l| l.href.as_ref().unwrap().as_str())
+            .collect::<Vec<&str>>();
+    }
+    urls
+}
+
+/// Makes a root object class suitable for being embedded in another object class.
+pub trait ToChild {
+    /// Removes notices and rdapConformance so this object can be a child
+    /// of another object.
+    fn to_child(self) -> Self;
+}
+
+/// Returns `Some(Vec<T>)` if the vector is not empty, otherwise `None`.
+pub fn to_opt_vec<T>(vec: Vec<T>) -> Option<Vec<T>> {
+    (!vec.is_empty()).then_some(vec)
+}
+
+/// Returns `Vec<T>` if `is_some()` else an empty vector.
+pub fn opt_to_vec<T>(opt: Option<Vec<T>>) -> Vec<T> {
+    opt.unwrap_or_default()
+}
+
+#[cfg(test)]
+mod tests {
+    use serde_json::Value;
+
+    use crate::media_types::RDAP_MEDIA_TYPE;
+
+    use super::{get_related_links, Domain, Link, RdapResponse, ToResponse};
+
+    #[test]
+    fn test_redaction_response_gets_object() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/lookup_with_redaction.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::Domain(_)));
+    }
+
+    #[test]
+    fn test_redaction_response_has_extension() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/lookup_with_redaction.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(actual.has_extension_id(crate::response::types::ExtensionId::Redacted));
+    }
+
+    #[test]
+    fn test_redaction_response_domain_search() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/domain_search_with_redaction.json"))
+                .unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::DomainSearchResults(_)));
+    }
+
+    #[test]
+    fn test_resopnse_is_domain() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/domain_afnic_fr.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::Domain(_)));
+    }
+
+    #[test]
+    fn test_response_is_entity() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/entity_arin_hostmaster.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::Entity(_)));
+    }
+
+    #[test]
+    fn test_response_is_nameserver() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/nameserver_ns1_nic_fr.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::Nameserver(_)));
+    }
+
+    #[test]
+    fn test_response_is_autnum() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/autnum_16509.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::Autnum(_)));
+    }
+
+    #[test]
+    fn test_response_is_network() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/network_192_198_0_0.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::Network(_)));
+    }
+
+    #[test]
+    fn test_response_is_domain_search_results() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/domains_ldhname_ns1_arin_net.json"))
+                .unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::DomainSearchResults(_)));
+    }
+
+    #[test]
+    fn test_response_is_entity_search_results() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/entities_fn_arin.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::EntitySearchResults(_)));
+    }
+
+    #[test]
+    fn test_response_is_help() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/help_nic_fr.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::Help(_)));
+    }
+
+    #[test]
+    fn test_response_is_error() {
+        // GIVEN
+        let expected: Value =
+            serde_json::from_str(include_str!("test_files/error_ripe_net.json")).unwrap();
+
+        // WHEN
+        let actual = RdapResponse::try_from(expected).unwrap();
+
+        // THEN
+        assert!(matches!(actual, RdapResponse::ErrorResponse(_)));
+    }
+
+    #[test]
+    fn test_string_is_entity_search_results() {
+        // GIVEN
+        let entity: Value =
+            serde_json::from_str(include_str!("test_files/entities_fn_arin.json")).unwrap();
+        let value = RdapResponse::try_from(entity).unwrap();
+
+        // WHEN
+        let actual = value.to_string();
+
+        // THEN
+        assert_eq!(actual, "EntitySearchResults");
+    }
+
+    #[test]
+    fn test_get_related_for_non_rel_link() {
+        // GIVEN
+        let rdap = Domain::builder()
+            .ldh_name("example.com")
+            .link(
+                Link::builder()
+                    .rel("not-related")
+                    .href("http://example.com")
+                    .value("http://example.com")
+                    .build(),
+            )
+            .build()
+            .to_response();
+
+        // WHEN
+        let links = get_related_links(&rdap);
+
+        // THEN
+        assert!(links.is_empty());
+    }
+
+    #[test]
+    fn test_get_related_for_rel_with_rdap_type_link() {
+        // GIVEN
+        let link = Link::builder()
+            .rel("related")
+            .href("http://example.com")
+            .value("http://example.com")
+            .media_type(RDAP_MEDIA_TYPE)
+            .build();
+        let rdap = Domain::builder()
+            .ldh_name("example.com")
+            .link(link.clone())
+            .build()
+            .to_response();
+
+        // WHEN
+        let links = get_related_links(&rdap);
+
+        // THEN
+        assert!(!links.is_empty());
+        assert_eq!(links.first().expect("empty links"), &link.href().unwrap());
+    }
+
+    #[test]
+    fn test_get_related_for_rel_link() {
+        // GIVEN
+        let link = Link::builder()
+            .rel("related")
+            .href("http://example.com")
+            .value("http://example.com")
+            .build();
+        let rdap = Domain::builder()
+            .ldh_name("example.com")
+            .link(link.clone())
+            .build()
+            .to_response();
+
+        // WHEN
+        let links = get_related_links(&rdap);
+
+        // THEN
+        assert!(links.is_empty());
+    }
+
+    #[test]
+    fn test_get_related_for_rel_link_that_look_like_rdap() {
+        // GIVEN
+        let link = Link::builder()
+            .rel("related")
+            .href("http://example.com/domain/foo")
+            .value("http://example.com")
+            .build();
+        let rdap = Domain::builder()
+            .ldh_name("example.com")
+            .link(link.clone())
+            .build()
+            .to_response();
+
+        // WHEN
+        let links = get_related_links(&rdap);
+
+        // THEN
+        assert!(!links.is_empty());
+        assert_eq!(links.first().expect("empty links"), &link.href().unwrap());
+    }
+}

icann-rdap-common/src/response/nameserver.rs

@@ -0,0 +1,341 @@
+//! RDAP Nameserver object class.
+use {
+    crate::prelude::{Common, Extension, ObjectCommon},
+    std::{net::IpAddr, str::FromStr},
+};
+
+use serde::{Deserialize, Serialize};
+
+use super::{
+    to_opt_vec, to_opt_vectorstringish, types::Link, CommonFields, Entity, Event, GetSelfLink,
+    Notice, ObjectCommonFields, Port43, RdapResponseError, Remark, SelfLink, ToChild, ToResponse,
+    VectorStringish, EMPTY_VEC_STRING,
+};
+
+/// Represents an IP address set for nameservers.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, Default)]
+pub struct IpAddresses {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub v6: Option<VectorStringish>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub v4: Option<VectorStringish>,
+}
+
+#[buildstructor::buildstructor]
+impl IpAddresses {
+    /// Builds nameserver IP address.
+    #[builder(visibility = "pub")]
+    fn new(addresses: Vec<String>) -> Result<Self, RdapResponseError> {
+        let mut v4: Vec<String> = Vec::new();
+        let mut v6: Vec<String> = Vec::new();
+        for addr in addresses {
+            let ip = IpAddr::from_str(&addr)?;
+            match ip {
+                IpAddr::V4(_) => v4.push(addr),
+                IpAddr::V6(_) => v6.push(addr),
+            }
+        }
+        Ok(Self {
+            v4: to_opt_vectorstringish(v4),
+            v6: to_opt_vectorstringish(v6),
+        })
+    }
+
+    #[allow(dead_code)]
+    #[builder(entry = "illegal", visibility = "pub(crate)")]
+    fn new_illegal(v6: Option<Vec<String>>, v4: Option<Vec<String>>) -> Self {
+        Self {
+            v4: v4.map(VectorStringish::from),
+            v6: v6.map(VectorStringish::from),
+        }
+    }
+
+    /// Get the IPv6 addresses.
+    pub fn v6s(&self) -> &Vec<String> {
+        self.v6
+            .as_ref()
+            .map(|v| v.vec())
+            .unwrap_or(&EMPTY_VEC_STRING)
+    }
+
+    /// Get the IPv4 addresses.
+    pub fn v4s(&self) -> &Vec<String> {
+        self.v4
+            .as_ref()
+            .map(|v| v.vec())
+            .unwrap_or(&EMPTY_VEC_STRING)
+    }
+}
+
+/// Represents an RDAP [nameserver](https://rdap.rcode3.com/protocol/object_classes.html#nameserver) response.
+///
+/// Using the builder is recommended to construct this structure as it
+/// will fill-in many of the mandatory fields.
+/// The following is an example.
+///
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let ns = Nameserver::builder()
+///   .ldh_name("ns1.example.com")
+///   .handle("ns1_example_com-1")
+///   .status("active")
+///   .address("10.0.0.1")
+///   .address("10.0.0.2")
+///   .entity(Entity::builder().handle("FOO").build())
+///   .build().unwrap();
+/// let c = serde_json::to_string_pretty(&ns).unwrap();
+/// eprintln!("{c}");
+/// ```
+///
+/// This will produce the following.
+///
+/// ```norust
+///   {
+///     "rdapConformance": [
+///       "rdap_level_0"
+///     ],
+///     "objectClassName": "nameserver",
+///     "handle": "ns1_example_com-1",
+///     "status": [
+///       "active"
+///     ],
+///     "entities": [
+///       {
+///         "rdapConformance": [
+///           "rdap_level_0"
+///         ],
+///         "objectClassName": "entity",
+///         "handle": "FOO"
+///       }
+///     ],
+///     "ldhName": "ns1.example.com",
+///     "ipAddresses": {
+///       "v4": [
+///         "10.0.0.1",
+///         "10.0.0.2"
+///       ]
+///     }
+///   }
+/// ```
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Nameserver {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(flatten)]
+    pub object_common: ObjectCommon,
+
+    #[serde(rename = "ldhName")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ldh_name: Option<String>,
+
+    #[serde(rename = "unicodeName")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub unicode_name: Option<String>,
+
+    #[serde(rename = "ipAddresses")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ip_addresses: Option<IpAddresses>,
+}
+
+#[buildstructor::buildstructor]
+impl Nameserver {
+    /// Builds a basic nameserver object.
+    ///
+    /// ```rust
+    /// use icann_rdap_common::prelude::*;
+    ///
+    /// let ns = Nameserver::builder()
+    ///   .ldh_name("ns1.example.com")
+    ///   .handle("ns1_example_com-1")
+    ///   .status("active")
+    ///   .address("10.0.0.1")
+    ///   .address("10.0.0.2")
+    ///   .entity(Entity::builder().handle("FOO").build())
+    ///   .build().unwrap();
+    /// ```
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new<T: Into<String>>(
+        ldh_name: T,
+        addresses: Vec<String>,
+        handle: Option<String>,
+        remarks: Vec<Remark>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+        statuses: Vec<String>,
+        port_43: Option<Port43>,
+        entities: Vec<Entity>,
+        notices: Vec<Notice>,
+        extensions: Vec<Extension>,
+        redacted: Option<Vec<crate::response::redacted::Redacted>>,
+    ) -> Result<Self, RdapResponseError> {
+        let ip_addresses = if !addresses.is_empty() {
+            Some(IpAddresses::builder().addresses(addresses).build()?)
+        } else {
+            None
+        };
+        Ok(Self {
+            common: Common::level0()
+                .extensions(extensions)
+                .and_notices(to_opt_vec(notices))
+                .build(),
+            object_common: ObjectCommon::nameserver()
+                .and_handle(handle)
+                .and_remarks(to_opt_vec(remarks))
+                .and_links(to_opt_vec(links))
+                .and_events(to_opt_vec(events))
+                .status(statuses)
+                .and_port_43(port_43)
+                .and_entities(to_opt_vec(entities))
+                .and_redacted(redacted)
+                .build(),
+            ldh_name: Some(ldh_name.into()),
+            unicode_name: None,
+            ip_addresses,
+        })
+    }
+
+    #[builder(entry = "illegal", visibility = "pub(crate)")]
+    #[allow(clippy::too_many_arguments)]
+    #[allow(dead_code)]
+    fn new_illegal(ldh_name: Option<String>, ip_addresses: Option<IpAddresses>) -> Self {
+        Self {
+            common: Common::level0().build(),
+            object_common: ObjectCommon::nameserver().build(),
+            ldh_name,
+            unicode_name: None,
+            ip_addresses,
+        }
+    }
+
+    /// Get the LDH name.
+    pub fn ldh_name(&self) -> Option<&str> {
+        self.ldh_name.as_deref()
+    }
+
+    /// Get the Unicode name.
+    pub fn unicode_name(&self) -> Option<&str> {
+        self.unicode_name.as_deref()
+    }
+
+    /// Get the IP addresses.
+    pub fn ip_addresses(&self) -> Option<&IpAddresses> {
+        self.ip_addresses.as_ref()
+    }
+}
+
+impl ToResponse for Nameserver {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::Nameserver(Box::new(self))
+    }
+}
+
+impl GetSelfLink for Nameserver {
+    fn get_self_link(&self) -> Option<&Link> {
+        self.object_common.get_self_link()
+    }
+}
+
+impl SelfLink for Nameserver {
+    fn set_self_link(mut self, link: Link) -> Self {
+        self.object_common = self.object_common.set_self_link(link);
+        self
+    }
+}
+
+impl ToChild for Nameserver {
+    fn to_child(mut self) -> Self {
+        self.common = Common {
+            rdap_conformance: None,
+            notices: None,
+        };
+        self
+    }
+}
+
+impl CommonFields for Nameserver {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ObjectCommonFields for Nameserver {
+    fn object_common(&self) -> &ObjectCommon {
+        &self.object_common
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use super::Nameserver;
+
+    #[test]
+    fn GIVEN_nameserver_WHEN_deserialize_THEN_success() {
+        // GIVEN
+        let expected = r#"
+        {
+            "objectClassName" : "nameserver",
+            "handle" : "XXXX",
+            "ldhName" : "ns1.xn--fo-5ja.example",
+            "unicodeName" : "ns.fóo.example",
+            "status" : [ "active" ],
+            "ipAddresses" :
+            {
+              "v4": [ "192.0.2.1", "192.0.2.2" ],
+              "v6": [ "2001:db8::123" ]
+            },
+            "remarks" :
+            [
+              {
+                "description" :
+                [
+                  "She sells sea shells down by the sea shore.",
+                  "Originally written by Terry Sullivan."
+                ]
+              }
+            ],
+            "links" :
+            [
+              {
+                "value" : "https://example.net/nameserver/ns1.xn--fo-5ja.example",
+                "rel" : "self",
+                "href" : "https://example.net/nameserver/ns1.xn--fo-5ja.example",
+                "type" : "application/rdap+json"
+              }
+            ],
+            "port43" : "whois.example.net",
+            "events" :
+            [
+              {
+                "eventAction" : "registration",
+                "eventDate" : "1990-12-31T23:59:59Z"
+              },
+              {
+                "eventAction" : "last changed",
+                "eventDate" : "1991-12-31T23:59:59Z",
+                "eventActor" : "joe@example.com"
+              }
+            ]
+        }
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<Nameserver>(expected);
+
+        // THEN
+        let actual = actual.unwrap();
+        assert_eq!(actual.object_common.object_class_name, "nameserver");
+        assert!(actual.object_common.handle.is_some());
+        assert!(actual.ldh_name.is_some());
+        assert!(actual.unicode_name.is_some());
+        assert!(actual.ip_addresses.is_some());
+        assert!(actual.object_common.remarks.is_some());
+        assert!(actual.object_common.status.is_some());
+        assert!(actual.object_common.links.is_some());
+        assert!(actual.object_common.events.is_some());
+    }
+}

icann-rdap-common/src/response/network.rs

@@ -0,0 +1,548 @@
+//! RDAP IP Network.
+use {
+    crate::prelude::{Common, Extension, ObjectCommon},
+    std::str::FromStr,
+};
+
+use {
+    cidr::IpInet,
+    serde::{Deserialize, Serialize},
+};
+
+use super::{
+    to_opt_vec,
+    types::{ExtensionId, Link},
+    CommonFields, Entity, Event, GetSelfLink, Notice, Numberish, ObjectCommonFields, Port43,
+    RdapResponseError, Remark, SelfLink, ToChild, ToResponse,
+};
+
+/// Cidr0 structure from the Cidr0 extension.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+#[serde(untagged)]
+pub enum Cidr0Cidr {
+    V4Cidr(V4Cidr),
+    V6Cidr(V6Cidr),
+}
+
+impl std::fmt::Display for Cidr0Cidr {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::V4Cidr(cidr) => cidr.fmt(f),
+            Self::V6Cidr(cidr) => cidr.fmt(f),
+        }
+    }
+}
+
+/// Represents a CIDR0 V4 CIDR.
+///
+/// This structure allow both the prefix
+/// and length to be optional to handle misbehaving servers, however
+/// both are required according to the CIDR0 RDAP extension. To create
+/// a valid stucture, use the builder.
+///
+/// However, it is recommended to use the builder on `Network` which will
+/// create the appropriate CIDR0 structure.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct V4Cidr {
+    pub v4prefix: Option<String>,
+    pub length: Option<Numberish<u8>>,
+}
+
+#[buildstructor::buildstructor]
+impl V4Cidr {
+    /// Builds an Ipv4 CIDR0.
+    #[builder(visibility = "pub")]
+    fn new(v4prefix: String, length: u8) -> Self {
+        V4Cidr {
+            v4prefix: Some(v4prefix),
+            length: Some(Numberish::<u8>::from(length)),
+        }
+    }
+}
+
+impl std::fmt::Display for V4Cidr {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let length_s = if let Some(length) = &self.length {
+            length.to_string()
+        } else {
+            "not_given".to_string()
+        };
+        write!(
+            f,
+            "{}/{}",
+            self.v4prefix.as_ref().unwrap_or(&"not_given".to_string()),
+            length_s
+        )
+    }
+}
+
+/// Represents a CIDR0 V6 CIDR.
+///
+/// This structure allow both the prefix
+/// and length to be optional to handle misbehaving servers, however
+/// both are required according to the CIDR0 RDAP extension. To create
+/// a valid stucture, use the builder.
+///
+/// However, it is recommended to use the builder on `Network` which will
+/// create the appropriate CIDR0 structure.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct V6Cidr {
+    pub v6prefix: Option<String>,
+    pub length: Option<Numberish<u8>>,
+}
+
+#[buildstructor::buildstructor]
+impl V6Cidr {
+    /// Builds an IPv6 CIDR0.
+    #[builder(visibility = "pub")]
+    fn new(v6prefix: String, length: u8) -> Self {
+        V6Cidr {
+            v6prefix: Some(v6prefix),
+            length: Some(Numberish::<u8>::from(length)),
+        }
+    }
+}
+
+impl std::fmt::Display for V6Cidr {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let length_s = if let Some(length) = &self.length {
+            length.to_string()
+        } else {
+            "not_given".to_string()
+        };
+        write!(
+            f,
+            "{}/{}",
+            self.v6prefix.as_ref().unwrap_or(&"not_given".to_string()),
+            length_s
+        )
+    }
+}
+
+/// Represents an RDAP [IP network](https://rdap.rcode3.com/protocol/object_classes.html#ip-network) response.
+///
+/// Use of the builder is recommended to create this structure.
+/// The builder will create the appropriate CIDR0 structures and
+/// is easier than specifying start and end IP addresses.
+///
+/// ```rust
+/// use icann_rdap_common::prelude::*;
+///
+/// let net = Network::builder()
+///   .cidr("10.0.0.0/24")
+///   .handle("NET-10-0-0-0")
+///   .status("active")
+///   .build().unwrap();
+/// ```
+///
+/// This will create the following RDAP structure.
+///
+/// ```norust
+/// {
+///   "rdapConformance": [
+///     "cidr0",
+///     "rdap_level_0"
+///   ],
+///   "objectClassName": "ip network",
+///   "handle": "NET-10-0-0-0",
+///   "status": [
+///     "active"
+///   ],
+///   "startAddress": "10.0.0.0",
+///   "endAddress": "10.0.0.255",
+///   "ipVersion": "v4",
+///   "cidr0_cidrs": [
+///     {
+///       "v4prefix": "10.0.0.0",
+///       "length": 24
+///     }
+///   ]
+/// }
+/// ```
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Network {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(flatten)]
+    pub object_common: ObjectCommon,
+
+    #[serde(rename = "startAddress")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub start_address: Option<String>,
+
+    #[serde(rename = "endAddress")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub end_address: Option<String>,
+
+    #[serde(rename = "ipVersion")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ip_version: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub name: Option<String>,
+
+    #[serde(rename = "type")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub network_type: Option<String>,
+
+    #[serde(rename = "parentHandle")]
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub parent_handle: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub country: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub cidr0_cidrs: Option<Vec<Cidr0Cidr>>,
+}
+
+static EMPTY_CIDR0CIDRS: Vec<Cidr0Cidr> = vec![];
+
+#[buildstructor::buildstructor]
+impl Network {
+    /// Builds a basic IP network object.
+    ///
+    /// ```rust
+    /// use icann_rdap_common::prelude::*;
+    ///
+    /// let net = Network::builder()
+    ///   .cidr("10.0.0.0/24")
+    ///   .handle("NET-10-0-0-0")
+    ///   .status("active")
+    ///   .build().unwrap();
+    /// ```
+    #[builder(visibility = "pub")]
+    #[allow(clippy::too_many_arguments)]
+    fn new(
+        cidr: String,
+        handle: Option<String>,
+        country: Option<String>,
+        name: Option<String>,
+        network_type: Option<String>,
+        parent_handle: Option<String>,
+        remarks: Vec<Remark>,
+        links: Vec<Link>,
+        events: Vec<Event>,
+        statuses: Vec<String>,
+        port_43: Option<Port43>,
+        entities: Vec<Entity>,
+        notices: Vec<Notice>,
+        mut extensions: Vec<Extension>,
+        redacted: Option<Vec<crate::response::redacted::Redacted>>,
+    ) -> Result<Self, RdapResponseError> {
+        let mut net_exts = vec![ExtensionId::Cidr0.to_extension()];
+        net_exts.append(&mut extensions);
+        let cidr = IpInet::from_str(&cidr)?;
+        Ok(Self {
+            common: Common::level0()
+                .extensions(net_exts)
+                .and_notices(to_opt_vec(notices))
+                .build(),
+            object_common: ObjectCommon::ip_network()
+                .and_handle(handle)
+                .and_remarks(to_opt_vec(remarks))
+                .and_links(to_opt_vec(links))
+                .and_events(to_opt_vec(events))
+                .status(statuses)
+                .and_port_43(port_43)
+                .and_entities(to_opt_vec(entities))
+                .and_redacted(redacted)
+                .build(),
+            start_address: Some(cidr.first_address().to_string()),
+            end_address: Some(cidr.last_address().to_string()),
+            ip_version: Some(
+                match cidr {
+                    IpInet::V4(_) => "v4",
+                    IpInet::V6(_) => "v6",
+                }
+                .to_string(),
+            ),
+            name,
+            network_type,
+            parent_handle,
+            country,
+            cidr0_cidrs: match cidr {
+                IpInet::V4(cidr) => Some(vec![Cidr0Cidr::V4Cidr(V4Cidr {
+                    v4prefix: Some(cidr.first_address().to_string()),
+                    length: Some(Numberish::<u8>::from(cidr.network_length())),
+                })]),
+                IpInet::V6(cidr) => Some(vec![Cidr0Cidr::V6Cidr(V6Cidr {
+                    v6prefix: Some(cidr.first_address().to_string()),
+                    length: Some(Numberish::<u8>::from(cidr.network_length())),
+                })]),
+            },
+        })
+    }
+
+    #[builder(entry = "illegal", visibility = "pub(crate)")]
+    #[allow(clippy::too_many_arguments)]
+    #[allow(dead_code)]
+    fn new_illegal(
+        start_address: Option<String>,
+        end_address: Option<String>,
+        ip_version: Option<String>,
+        cidr0_cidrs: Option<Vec<Cidr0Cidr>>,
+        country: Option<String>,
+        name: Option<String>,
+        network_type: Option<String>,
+        parent_handle: Option<String>,
+        notices: Vec<Notice>,
+    ) -> Self {
+        Self {
+            common: Common::level0()
+                .extension(ExtensionId::Cidr0.to_extension())
+                .and_notices(to_opt_vec(notices))
+                .build(),
+            object_common: ObjectCommon::ip_network().build(),
+            start_address,
+            end_address,
+            ip_version,
+            name,
+            network_type,
+            parent_handle,
+            country,
+            cidr0_cidrs,
+        }
+    }
+
+    /// Returns the start address of the network.
+    pub fn start_address(&self) -> Option<&str> {
+        self.start_address.as_deref()
+    }
+
+    /// Returns the end address of the network.
+    pub fn end_address(&self) -> Option<&str> {
+        self.end_address.as_deref()
+    }
+
+    /// Returns the IP version of the network.
+    pub fn ip_version(&self) -> Option<&str> {
+        self.ip_version.as_deref()
+    }
+
+    /// Returns the name of the network.
+    pub fn name(&self) -> Option<&str> {
+        self.name.as_deref()
+    }
+
+    /// Returns the type of the network.
+    pub fn network_type(&self) -> Option<&str> {
+        self.network_type.as_deref()
+    }
+
+    /// Returns the parent handle of the network.
+    pub fn parent_handle(&self) -> Option<&str> {
+        self.parent_handle.as_deref()
+    }
+
+    /// Returns the country of the network.
+    pub fn country(&self) -> Option<&str> {
+        self.country.as_deref()
+    }
+
+    /// Returns the CIDR0 CIDRs of the network.
+    pub fn cidr0_cidrs(&self) -> &Vec<Cidr0Cidr> {
+        self.cidr0_cidrs.as_ref().unwrap_or(&EMPTY_CIDR0CIDRS)
+    }
+}
+
+impl ToResponse for Network {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::Network(Box::new(self))
+    }
+}
+
+impl GetSelfLink for Network {
+    fn get_self_link(&self) -> Option<&Link> {
+        self.object_common.get_self_link()
+    }
+}
+
+impl SelfLink for Network {
+    fn set_self_link(mut self, link: Link) -> Self {
+        self.object_common = self.object_common.set_self_link(link);
+        self
+    }
+}
+
+impl ToChild for Network {
+    fn to_child(mut self) -> Self {
+        self.common = Common {
+            rdap_conformance: None,
+            notices: None,
+        };
+        self
+    }
+}
+
+impl CommonFields for Network {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ObjectCommonFields for Network {
+    fn object_common(&self) -> &ObjectCommon {
+        &self.object_common
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use crate::response::network::Network;
+
+    #[test]
+    fn GIVEN_network_WHEN_deserialize_THEN_success() {
+        let expected = r#"
+        {
+          "objectClassName" : "ip network",
+          "handle" : "XXXX-RIR",
+          "startAddress" : "2001:db8::",
+          "endAddress" : "2001:db8:0:ffff:ffff:ffff:ffff:ffff",
+          "ipVersion" : "v6",
+          "name": "NET-RTR-1",
+          "type" : "DIRECT ALLOCATION",
+          "country" : "AU",
+          "parentHandle" : "YYYY-RIR",
+          "status" : [ "active" ],
+          "remarks" :
+          [
+            {
+              "description" :
+              [
+                "She sells sea shells down by the sea shore.",
+                "Originally written by Terry Sullivan."
+              ]
+            }
+          ],
+          "links" :
+          [
+            {
+              "value" : "https://example.net/ip/2001:db8::/48",
+              "rel" : "self",
+              "href" : "https://example.net/ip/2001:db8::/48",
+              "type" : "application/rdap+json"
+            },
+            {
+              "value" : "https://example.net/ip/2001:db8::/48",
+              "rel" : "up",
+              "href" : "https://example.net/ip/2001:db8::/32",
+              "type" : "application/rdap+json"
+            }
+          ],
+          "events" :
+          [
+            {
+              "eventAction" : "registration",
+              "eventDate" : "1990-12-31T23:59:59Z"
+            },
+            {
+              "eventAction" : "last changed",
+              "eventDate" : "1991-12-31T23:59:59Z"
+            }
+          ],
+          "entities" :
+          [
+            {
+              "objectClassName" : "entity",
+              "handle" : "XXXX",
+              "vcardArray":[
+                "vcard",
+                [
+                  ["version", {}, "text", "4.0"],
+                  ["fn", {}, "text", "Joe User"],
+                  ["kind", {}, "text", "individual"],
+                  ["lang", {
+                    "pref":"1"
+                  }, "language-tag", "fr"],
+                  ["lang", {
+                    "pref":"2"
+                  }, "language-tag", "en"],
+                  ["org", {
+                    "type":"work"
+                  }, "text", "Example"],
+                  ["title", {}, "text", "Research Scientist"],
+                  ["role", {}, "text", "Project Lead"],
+                  ["adr",
+                    { "type":"work" },
+                    "text",
+                    [
+                      "",
+                      "Suite 1234",
+                      "4321 Rue Somewhere",
+                      "Quebec",
+                      "QC",
+                      "G1V 2M2",
+                      "Canada"
+                    ]
+                  ],
+                  ["tel",
+                    { "type":["work", "voice"], "pref":"1" },
+                    "uri", "tel:+1-555-555-1234;ext=102"
+                  ],
+                  ["email",
+                    { "type":"work" },
+                    "text", "joe.user@example.com"
+                  ]
+                ]
+              ],
+              "roles" : [ "registrant" ],
+              "remarks" :
+              [
+                {
+                  "description" :
+                  [
+                    "She sells sea shells down by the sea shore.",
+                    "Originally written by Terry Sullivan."
+                  ]
+                }
+              ],
+              "links" :
+              [
+                {
+                  "value" : "https://example.net/entity/xxxx",
+                  "rel" : "self",
+                  "href" : "https://example.net/entity/xxxx",
+                  "type" : "application/rdap+json"
+                }
+              ],
+              "events" :
+              [
+                {
+                  "eventAction" : "registration",
+                  "eventDate" : "1990-12-31T23:59:59Z"
+
+                },
+                {
+                  "eventAction" : "last changed",
+                  "eventDate" : "1991-12-31T23:59:59Z"
+                }
+              ]
+            }
+          ]
+        }
+        "#;
+
+        // WHEN
+        let actual = serde_json::from_str::<Network>(expected);
+
+        // THEN
+        let actual = actual.unwrap();
+        assert_eq!(actual.object_common.object_class_name, "ip network");
+        assert!(actual.object_common.handle.is_some());
+        assert!(actual.start_address.is_some());
+        assert!(actual.end_address.is_some());
+        assert!(actual.ip_version.is_some());
+        assert!(actual.name.is_some());
+        assert!(actual.network_type.is_some());
+        assert!(actual.parent_handle.is_some());
+        assert!(actual.object_common.status.is_some());
+        assert!(actual.country.is_some());
+        assert!(actual.object_common.remarks.is_some());
+        assert!(actual.object_common.links.is_some());
+        assert!(actual.object_common.events.is_some());
+        assert!(actual.object_common.entities.is_some());
+    }
+}

icann-rdap-common/src/response/obj_common.rs

@@ -0,0 +1,266 @@
+use serde::{Deserialize, Serialize};
+
+use super::{
+    redacted::Redacted, to_opt_vectorstringish, Entity, Events, Link, Links, Port43, Remarks,
+    VectorStringish, EMPTY_VEC_STRING,
+};
+
+/// Holds those types that are common in all object classes.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct ObjectCommon {
+    #[serde(rename = "objectClassName")]
+    pub object_class_name: String,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub handle: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub remarks: Option<Remarks>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub links: Option<Links>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub events: Option<Events>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub status: Option<VectorStringish>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "port43")]
+    pub port_43: Option<Port43>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub entities: Option<Vec<Entity>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub redacted: Option<Vec<Redacted>>,
+}
+
+#[buildstructor::buildstructor]
+impl ObjectCommon {
+    /// Builds [ObjectCommon] for a [crate::response::domain::Domain].
+    #[builder(entry = "domain", visibility = "pub(crate)")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_domain(
+        handle: Option<String>,
+        remarks: Option<Remarks>,
+        links: Option<Links>,
+        events: Option<Events>,
+        status: Option<Vec<String>>,
+        port_43: Option<Port43>,
+        entities: Option<Vec<Entity>>,
+        redacted: Option<Vec<Redacted>>,
+    ) -> Self {
+        Self {
+            object_class_name: "domain".to_string(),
+            handle,
+            remarks,
+            links,
+            events,
+            status: to_opt_vectorstringish(status.unwrap_or_default()),
+            port_43,
+            entities,
+            redacted,
+        }
+    }
+
+    /// Builds [ObjectCommon] for a [crate::response::network::Network].
+    #[builder(entry = "ip_network", visibility = "pub(crate)")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_ip_network(
+        handle: Option<String>,
+        remarks: Option<Remarks>,
+        links: Option<Links>,
+        events: Option<Events>,
+        status: Option<Vec<String>>,
+        port_43: Option<Port43>,
+        entities: Option<Vec<Entity>>,
+        redacted: Option<Vec<Redacted>>,
+    ) -> Self {
+        Self {
+            object_class_name: "ip network".to_string(),
+            handle,
+            remarks,
+            links,
+            events,
+            status: to_opt_vectorstringish(status.unwrap_or_default()),
+            port_43,
+            entities,
+            redacted,
+        }
+    }
+
+    /// Builds an [ObjectCommon] for an [crate::response::autnum::Autnum].
+    #[builder(entry = "autnum", visibility = "pub(crate)")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_autnum(
+        handle: Option<String>,
+        remarks: Option<Remarks>,
+        links: Option<Links>,
+        events: Option<Events>,
+        status: Option<Vec<String>>,
+        port_43: Option<Port43>,
+        entities: Option<Vec<Entity>>,
+        redacted: Option<Vec<Redacted>>,
+    ) -> Self {
+        Self {
+            object_class_name: "autnum".to_string(),
+            handle,
+            remarks,
+            links,
+            events,
+            status: to_opt_vectorstringish(status.unwrap_or_default()),
+            port_43,
+            entities,
+            redacted,
+        }
+    }
+
+    /// Builds an [ObjectCommon] for a [crate::response::nameserver::Nameserver].
+    #[builder(entry = "nameserver", visibility = "pub(crate)")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_nameserver(
+        handle: Option<String>,
+        remarks: Option<Remarks>,
+        links: Option<Links>,
+        events: Option<Events>,
+        status: Option<Vec<String>>,
+        port_43: Option<Port43>,
+        entities: Option<Vec<Entity>>,
+        redacted: Option<Vec<Redacted>>,
+    ) -> Self {
+        Self {
+            object_class_name: "nameserver".to_string(),
+            handle,
+            remarks,
+            links,
+            events,
+            status: to_opt_vectorstringish(status.unwrap_or_default()),
+            port_43,
+            entities,
+            redacted,
+        }
+    }
+
+    /// Builds an [ObjectCommon] for an [crate::response::entity::Entity].
+    #[builder(entry = "entity", visibility = "pub(crate)")]
+    #[allow(clippy::too_many_arguments)]
+    fn new_entity(
+        handle: Option<String>,
+        remarks: Option<Remarks>,
+        links: Option<Links>,
+        events: Option<Events>,
+        status: Option<Vec<String>>,
+        port_43: Option<Port43>,
+        entities: Option<Vec<Entity>>,
+        redacted: Option<Vec<Redacted>>,
+    ) -> Self {
+        Self {
+            object_class_name: "entity".to_string(),
+            handle,
+            remarks,
+            links,
+            events,
+            status: to_opt_vectorstringish(status.unwrap_or_default()),
+            port_43,
+            entities,
+            redacted,
+        }
+    }
+
+    /// This will remove all other self links and place the provided link
+    /// into the Links. This method will also set the "rel" attribute
+    /// to "self" on the provided link.
+    pub fn set_self_link(mut self, mut link: Link) -> Self {
+        link.rel = Some("self".to_string());
+        if let Some(links) = self.links {
+            let mut new_links = links
+                .into_iter()
+                .filter(|link| !link.is_relation("self"))
+                .collect::<Vec<Link>>();
+            new_links.push(link);
+            self.links = Some(new_links);
+        } else {
+            self.links = Some(vec![link]);
+        }
+        self
+    }
+
+    /// Get the link with a `rel` of "self".
+    pub fn get_self_link(&self) -> Option<&Link> {
+        if let Some(links) = &self.links {
+            links.iter().find(|link| link.is_relation("self"))
+        } else {
+            None
+        }
+    }
+}
+
+/// Empty Remarks.
+static EMPTY_REMARKS: Remarks = vec![];
+/// Empty Links.
+static EMPTY_LINKS: Links = vec![];
+/// Empty Events.
+static EMPTY_EVENTS: Events = vec![];
+/// Empty Entities.
+static EMPTY_ENTITIES: Vec<Entity> = vec![];
+
+/// Convenience methods for fields in [ObjectCommon].
+pub trait ObjectCommonFields {
+    /// Getter for [ObjectCommon].
+    fn object_common(&self) -> &ObjectCommon;
+
+    /// Returns the object class name.
+    fn object_class_name(&self) -> &str {
+        &self.object_common().object_class_name
+    }
+
+    /// Returns the handle, if present.
+    fn handle(&self) -> Option<&str> {
+        self.object_common().handle.as_deref()
+    }
+
+    /// Returns the port 43 information, if present.
+    fn port_43(&self) -> Option<&Port43> {
+        self.object_common().port_43.as_ref()
+    }
+
+    /// Getter for [Remarks].
+    fn remarks(&self) -> &Remarks {
+        self.object_common()
+            .remarks
+            .as_ref()
+            .unwrap_or(&EMPTY_REMARKS)
+    }
+
+    /// Getter for [Links].
+    fn links(&self) -> &Links {
+        self.object_common().links.as_ref().unwrap_or(&EMPTY_LINKS)
+    }
+
+    /// Getter for [Events].
+    fn events(&self) -> &Events {
+        self.object_common()
+            .events
+            .as_ref()
+            .unwrap_or(&EMPTY_EVENTS)
+    }
+
+    /// Getter for status.
+    fn status(&self) -> &Vec<String> {
+        self.object_common()
+            .status
+            .as_ref()
+            .map(|v| v.vec())
+            .unwrap_or(&EMPTY_VEC_STRING)
+    }
+
+    /// Getter for Vec of [Entity].
+    fn entities(&self) -> &Vec<Entity> {
+        self.object_common()
+            .entities
+            .as_ref()
+            .unwrap_or(&EMPTY_ENTITIES)
+    }
+}

icann-rdap-common/src/response/redacted.rs

@@ -0,0 +1,251 @@
+//! RFC 9537.
+use {
+    buildstructor::Builder,
+    serde::{Deserialize, Serialize},
+    std::{any::TypeId, fmt},
+};
+
+use crate::check::Checks;
+
+/// Redacted registered name.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Name {
+    #[serde(rename = "description")]
+    pub description: Option<String>,
+
+    #[serde(rename = "type")]
+    pub type_field: Option<String>,
+}
+
+impl Name {
+    /// Get the description.
+    pub fn description(&self) -> Option<&String> {
+        self.description.as_ref()
+    }
+
+    /// Get the redaction type.
+    pub fn type_field(&self) -> Option<&String> {
+        self.type_field.as_ref()
+    }
+}
+
+/// Redaction reason.
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, Default)]
+pub struct Reason {
+    #[serde(rename = "description")]
+    pub description: Option<String>,
+
+    #[serde(rename = "type")]
+    pub type_field: Option<String>,
+}
+
+impl std::fmt::Display for Reason {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let output = self.description.clone().unwrap_or_default();
+        write!(f, "{}", output)
+    }
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+#[serde(rename_all = "camelCase")]
+pub enum Method {
+    Removal,
+    EmptyValue,
+    PartialValue,
+    ReplacementValue,
+}
+
+/// RFC 9537 redaction structure.
+#[derive(Builder, Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
+pub struct Redacted {
+    #[serde[rename = "name"]]
+    pub name: Name,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "reason")]
+    pub reason: Option<Reason>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "prePath")]
+    pub pre_path: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "postPath")]
+    pub post_path: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "pathLang")]
+    pub path_lang: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "replacementPath")]
+    pub replacement_path: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "method")]
+    pub method: Option<Method>,
+}
+
+impl Default for Name {
+    fn default() -> Self {
+        Self {
+            description: Some(String::default()),
+            type_field: None,
+        }
+    }
+}
+
+impl Default for Method {
+    fn default() -> Self {
+        Self::Removal // according to IETF draft this is the default
+    }
+}
+
+impl fmt::Display for Method {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Self::Removal => write!(f, "Removal"),
+            Self::EmptyValue => write!(f, "EmptyValue"),
+            Self::PartialValue => write!(f, "PartialValue"),
+            Self::ReplacementValue => write!(f, "ReplacementValue"),
+        }
+    }
+}
+
+impl Redacted {
+    /// Get the checks from Redactions.
+    pub fn get_checks(&self, _check_params: crate::check::CheckParams<'_>) -> crate::check::Checks {
+        Checks {
+            rdap_struct: crate::check::RdapStructure::Redacted,
+            items: vec![],
+            sub_checks: vec![],
+        }
+    }
+
+    /// Get the type.
+    pub fn get_type(&self) -> std::any::TypeId {
+        TypeId::of::<Self>()
+    }
+}
+
+#[cfg(test)]
+#[allow(non_snake_case)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn GIVEN_redaction_WHEN_set_THEN_success() {
+        // GIVEN
+        let name = Name {
+            description: Some("Registry Domain ID".to_string()),
+            type_field: None,
+        };
+
+        // WHEN
+        let redacted = Redacted::builder()
+            .name(name)
+            .reason(Reason::default())
+            .pre_path("$.handle".to_string())
+            .post_path("$.entities[?(@.roles[0]=='registrant'".to_string())
+            .path_lang("jsonpath".to_string())
+            .replacement_path(
+                "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='contact-uri')]"
+                    .to_string(),
+            )
+            .method(Method::Removal)
+            .build();
+
+        // THEN
+        assert_eq!(
+            redacted.name.description,
+            Some("Registry Domain ID".to_string())
+        );
+        assert_eq!(redacted.pre_path, Some("$.handle".to_string()));
+        assert_eq!(
+            redacted.post_path,
+            Some("$.entities[?(@.roles[0]=='registrant'".to_string())
+        );
+        assert_eq!(redacted.path_lang, Some("jsonpath".to_string()));
+        assert_eq!(
+            redacted.replacement_path,
+            Some(
+                "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='contact-uri')]"
+                    .to_string()
+            )
+        );
+        assert_eq!(redacted.method, Some(Method::Removal));
+    }
+
+    #[test]
+    fn GIVEN_redaction_WHEN_deserialize_THEN_success() {
+        // GIVEN
+        let expected = r#"
+        {
+          "name": {
+            "type": "Registry Domain ID"
+          },
+          "prePath": "$.handle",
+          "pathLang": "jsonpath",
+          "postPath": "$.entities[?(@.roles[0]=='registrant'",
+          "replacementPath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='contact-uri')]",
+          "method": "removal",
+          "reason": {
+            "description": "Server policy"
+          }
+        }
+        "#;
+
+        // in this one we swap the two fields
+        let name = Name {
+            type_field: Some("Registry Domain ID".to_string()),
+            description: None,
+        };
+
+        let reason: Reason = Reason {
+            description: Some("Server policy".to_string()),
+            type_field: None,
+        };
+
+        // WHEN
+        // use the builder for most of the fields but not all
+        let mut sample_redact: Redacted = Redacted::builder()
+            .name(name)
+            .pre_path("$.handle".to_string())
+            .path_lang("jsonpath".to_string())
+            .post_path("$.entities[?(@.roles[0]=='registrant'".to_string())
+            .replacement_path(
+                "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='contact-uri')]"
+                    .to_string(),
+            )
+            .build();
+
+        // also make sure we can set the rest
+        sample_redact.method = Some(Method::Removal);
+        sample_redact.reason = Some(reason);
+
+        let actual: Result<Redacted, serde_json::Error> =
+            serde_json::from_str::<Redacted>(expected);
+
+        // THEN
+        let actual: Redacted = actual.unwrap();
+        assert_eq!(actual, sample_redact); // sanity check
+        assert_eq!(
+            actual.name.type_field,
+            Some("Registry Domain ID".to_string())
+        );
+        assert_eq!(actual.pre_path, Some("$.handle".to_string()));
+        assert_eq!(
+            actual.post_path,
+            Some("$.entities[?(@.roles[0]=='registrant'".to_string())
+        );
+        assert_eq!(actual.path_lang, Some("jsonpath".to_string()));
+        assert_eq!(
+            actual.replacement_path,
+            Some(
+                "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='contact-uri')]"
+                    .to_string()
+            )
+        );
+        assert_eq!(actual.method, Some(Method::Removal));
+    }
+}

icann-rdap-common/src/response/search.rs

@@ -0,0 +1,109 @@
+//! RDAP Search Results.
+use {
+    crate::prelude::{Common, Extension},
+    serde::{Deserialize, Serialize},
+};
+
+use super::{domain::Domain, entity::Entity, nameserver::Nameserver, CommonFields, ToResponse};
+
+/// Represents RDAP domain search results.
+#[derive(Serialize, Deserialize, Clone, PartialEq, Debug, Eq)]
+pub struct DomainSearchResults {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(rename = "domainSearchResults")]
+    pub results: Vec<Domain>,
+}
+
+#[buildstructor::buildstructor]
+impl DomainSearchResults {
+    /// Builds a domain search result.
+    #[builder(visibility = "pub")]
+    fn new(results: Vec<Domain>, extensions: Vec<Extension>) -> Self {
+        Self {
+            common: Common::level0().extensions(extensions).build(),
+            results,
+        }
+    }
+}
+
+impl CommonFields for DomainSearchResults {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ToResponse for DomainSearchResults {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::DomainSearchResults(Box::new(self))
+    }
+}
+
+/// Represents RDAP nameserver search results.
+#[derive(Serialize, Deserialize, Clone, PartialEq, Debug, Eq)]
+pub struct NameserverSearchResults {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(rename = "nameserverSearchResults")]
+    pub results: Vec<Nameserver>,
+}
+
+#[buildstructor::buildstructor]
+impl NameserverSearchResults {
+    /// Builds a nameserver search result.
+    #[builder(visibility = "pub")]
+    fn new(results: Vec<Nameserver>, extensions: Vec<Extension>) -> Self {
+        Self {
+            common: Common::level0().extensions(extensions).build(),
+            results,
+        }
+    }
+}
+
+impl CommonFields for NameserverSearchResults {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ToResponse for NameserverSearchResults {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::NameserverSearchResults(Box::new(self))
+    }
+}
+
+/// Represents RDAP entity search results.
+#[derive(Serialize, Deserialize, Clone, PartialEq, Debug, Eq)]
+pub struct EntitySearchResults {
+    #[serde(flatten)]
+    pub common: Common,
+
+    #[serde(rename = "entitySearchResults")]
+    pub results: Vec<Entity>,
+}
+
+#[buildstructor::buildstructor]
+impl EntitySearchResults {
+    /// Builds an entity search result.
+    #[builder(visibility = "pub")]
+    fn new(results: Vec<Entity>, extensions: Vec<Extension>) -> Self {
+        Self {
+            common: Common::level0().extensions(extensions).build(),
+            results,
+        }
+    }
+}
+
+impl CommonFields for EntitySearchResults {
+    fn common(&self) -> &Common {
+        &self.common
+    }
+}
+
+impl ToResponse for EntitySearchResults {
+    fn to_response(self) -> super::RdapResponse {
+        super::RdapResponse::EntitySearchResults(Box::new(self))
+    }
+}

icann-rdap-common/src/response/test_files/autnum_16509.json

@@ -0,0 +1,866 @@
+{
+   "endAutnum" : 16509,
+   "entities" : [
+      {
+         "entities" : [
+            {
+               "events" : [
+                  {
+                     "eventAction" : "last changed",
+                     "eventDate" : "2022-09-30T16:26:55-04:00"
+                  },
+                  {
+                     "eventAction" : "registration",
+                     "eventDate" : "2021-07-22T10:42:42-04:00"
+                  }
+               ],
+               "handle" : "ARMP-ARIN",
+               "links" : [
+                  {
+                     "href" : "https://rdap.arin.net/registry/entity/ARMP-ARIN",
+                     "rel" : "self",
+                     "type" : "application/rdap+json",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  },
+                  {
+                     "href" : "https://whois.arin.net/rest/poc/ARMP-ARIN",
+                     "rel" : "alternate",
+                     "type" : "application/xml",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  }
+               ],
+               "objectClassName" : "entity",
+               "port43" : "whois.arin.net",
+               "roles" : [
+                  "routing"
+               ],
+               "status" : [
+                  "validated"
+               ],
+               "vcardArray" : [
+                  "vcard",
+                  [
+                     [
+                        "version",
+                        {},
+                        "text",
+                        "4.0"
+                     ],
+                     [
+                        "adr",
+                        {
+                           "label" : "13200 Woodland Park Dr\nHerndon\nHerndon\nVA\n20171\nUnited States"
+                        },
+                        "text",
+                        [
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "fn",
+                        {},
+                        "text",
+                        "AWS RPKI Management POC"
+                     ],
+                     [
+                        "org",
+                        {},
+                        "text",
+                        "AWS RPKI Management POC"
+                     ],
+                     [
+                        "kind",
+                        {},
+                        "text",
+                        "group"
+                     ],
+                     [
+                        "email",
+                        {},
+                        "text",
+                        "aws-rpki-routing-poc@amazon.com"
+                     ],
+                     [
+                        "tel",
+                        {
+                           "type" : [
+                              "work",
+                              "voice"
+                           ]
+                        },
+                        "text",
+                        "+1-206-555-0000"
+                     ]
+                  ]
+               ]
+            },
+            {
+               "events" : [
+                  {
+                     "eventAction" : "last changed",
+                     "eventDate" : "2022-09-07T22:23:27-04:00"
+                  },
+                  {
+                     "eventAction" : "registration",
+                     "eventDate" : "2019-07-24T13:17:11-04:00"
+                  }
+               ],
+               "handle" : "IPROU3-ARIN",
+               "links" : [
+                  {
+                     "href" : "https://rdap.arin.net/registry/entity/IPROU3-ARIN",
+                     "rel" : "self",
+                     "type" : "application/rdap+json",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  },
+                  {
+                     "href" : "https://whois.arin.net/rest/poc/IPROU3-ARIN",
+                     "rel" : "alternate",
+                     "type" : "application/xml",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  }
+               ],
+               "objectClassName" : "entity",
+               "port43" : "whois.arin.net",
+               "remarks" : [
+                  {
+                     "description" : [
+                        "Report abuse incidents to our Abuse POC AEA8-ARIN.  ",
+                        "",
+                        "Thank you for your cooperation."
+                     ],
+                     "title" : "Registration Comments"
+                  }
+               ],
+               "roles" : [
+                  "routing"
+               ],
+               "status" : [
+                  "validated"
+               ],
+               "vcardArray" : [
+                  "vcard",
+                  [
+                     [
+                        "version",
+                        {},
+                        "text",
+                        "4.0"
+                     ],
+                     [
+                        "adr",
+                        {
+                           "label" : "1918 8th Ave\nSeattle\nWA\n98109\nUnited States"
+                        },
+                        "text",
+                        [
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "fn",
+                        {},
+                        "text",
+                        "IP Routing"
+                     ],
+                     [
+                        "org",
+                        {},
+                        "text",
+                        "IP Routing"
+                     ],
+                     [
+                        "kind",
+                        {},
+                        "text",
+                        "group"
+                     ],
+                     [
+                        "email",
+                        {},
+                        "text",
+                        "aws-routing-poc@amazon.com"
+                     ],
+                     [
+                        "tel",
+                        {
+                           "type" : [
+                              "work",
+                              "voice"
+                           ]
+                        },
+                        "text",
+                        "+1-206-555-0000"
+                     ]
+                  ]
+               ]
+            },
+            {
+               "events" : [
+                  {
+                     "eventAction" : "last changed",
+                     "eventDate" : "2022-08-22T19:08:51-04:00"
+                  },
+                  {
+                     "eventAction" : "registration",
+                     "eventDate" : "2008-03-24T14:12:07-04:00"
+                  }
+               ],
+               "handle" : "AEA8-ARIN",
+               "links" : [
+                  {
+                     "href" : "https://rdap.arin.net/registry/entity/AEA8-ARIN",
+                     "rel" : "self",
+                     "type" : "application/rdap+json",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  },
+                  {
+                     "href" : "https://whois.arin.net/rest/poc/AEA8-ARIN",
+                     "rel" : "alternate",
+                     "type" : "application/xml",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  }
+               ],
+               "objectClassName" : "entity",
+               "port43" : "whois.arin.net",
+               "remarks" : [
+                  {
+                     "description" : [
+                        "Amazon Web Services Abuse - The activity you have detected originates from a dynamic hosting environment. For fastest response, please submit abuse reports to abuse@amazonaws.com",
+                        "All reports MUST include:",
+                        "* src IP",
+                        "* dest IP (your IP)",
+                        "* dest port",
+                        "* Accurate date/timestamp and timezone of activity",
+                        "* Intensity/frequency (short log extracts)",
+                        "* Your contact details (phone and email)",
+                        "Without these we will be unable to identify the correct owner of the IP address at that point in time."
+                     ],
+                     "title" : "Registration Comments"
+                  }
+               ],
+               "roles" : [
+                  "abuse"
+               ],
+               "status" : [
+                  "validated"
+               ],
+               "vcardArray" : [
+                  "vcard",
+                  [
+                     [
+                        "version",
+                        {},
+                        "text",
+                        "4.0"
+                     ],
+                     [
+                        "adr",
+                        {
+                           "label" : "Amazon Web Services Elastic Compute Cloud, EC2\n410 Terry Avenue North\nSeattle\nWA\n98109-5210\nUnited States"
+                        },
+                        "text",
+                        [
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "fn",
+                        {},
+                        "text",
+                        "Amazon EC2 Abuse"
+                     ],
+                     [
+                        "org",
+                        {},
+                        "text",
+                        "Amazon EC2 Abuse"
+                     ],
+                     [
+                        "kind",
+                        {},
+                        "text",
+                        "group"
+                     ],
+                     [
+                        "email",
+                        {},
+                        "text",
+                        "abuse@amazonaws.com"
+                     ],
+                     [
+                        "tel",
+                        {
+                           "type" : [
+                              "work",
+                              "voice"
+                           ]
+                        },
+                        "text",
+                        "+1-206-555-0000"
+                     ]
+                  ]
+               ]
+            },
+            {
+               "events" : [
+                  {
+                     "eventAction" : "last changed",
+                     "eventDate" : "2022-08-24T13:17:35-04:00"
+                  },
+                  {
+                     "eventAction" : "registration",
+                     "eventDate" : "2005-09-19T06:00:05-04:00"
+                  }
+               ],
+               "handle" : "ANO24-ARIN",
+               "links" : [
+                  {
+                     "href" : "https://rdap.arin.net/registry/entity/ANO24-ARIN",
+                     "rel" : "self",
+                     "type" : "application/rdap+json",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  },
+                  {
+                     "href" : "https://whois.arin.net/rest/poc/ANO24-ARIN",
+                     "rel" : "alternate",
+                     "type" : "application/xml",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  }
+               ],
+               "objectClassName" : "entity",
+               "port43" : "whois.arin.net",
+               "roles" : [
+                  "technical"
+               ],
+               "status" : [
+                  "validated"
+               ],
+               "vcardArray" : [
+                  "vcard",
+                  [
+                     [
+                        "version",
+                        {},
+                        "text",
+                        "4.0"
+                     ],
+                     [
+                        "adr",
+                        {
+                           "label" : "PO BOX 81226\nSeattle\nWA\n98108-1226\nUnited States"
+                        },
+                        "text",
+                        [
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "fn",
+                        {},
+                        "text",
+                        "Amazon EC2 Network Operations"
+                     ],
+                     [
+                        "org",
+                        {},
+                        "text",
+                        "Amazon EC2 Network Operations"
+                     ],
+                     [
+                        "kind",
+                        {},
+                        "text",
+                        "group"
+                     ],
+                     [
+                        "email",
+                        {},
+                        "text",
+                        "amzn-noc-contact@amazon.com"
+                     ],
+                     [
+                        "tel",
+                        {
+                           "type" : [
+                              "work",
+                              "voice"
+                           ]
+                        },
+                        "text",
+                        "+1-206-555-0000"
+                     ]
+                  ]
+               ]
+            },
+            {
+               "events" : [
+                  {
+                     "eventAction" : "last changed",
+                     "eventDate" : "2022-08-24T13:17:49-04:00"
+                  },
+                  {
+                     "eventAction" : "registration",
+                     "eventDate" : "2010-03-04T18:38:30-05:00"
+                  }
+               ],
+               "handle" : "AANO1-ARIN",
+               "links" : [
+                  {
+                     "href" : "https://rdap.arin.net/registry/entity/AANO1-ARIN",
+                     "rel" : "self",
+                     "type" : "application/rdap+json",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  },
+                  {
+                     "href" : "https://whois.arin.net/rest/poc/AANO1-ARIN",
+                     "rel" : "alternate",
+                     "type" : "application/xml",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  }
+               ],
+               "objectClassName" : "entity",
+               "port43" : "whois.arin.net",
+               "roles" : [
+                  "noc"
+               ],
+               "status" : [
+                  "validated"
+               ],
+               "vcardArray" : [
+                  "vcard",
+                  [
+                     [
+                        "version",
+                        {},
+                        "text",
+                        "4.0"
+                     ],
+                     [
+                        "adr",
+                        {
+                           "label" : "410 Terry Ave N\nSeattle\nWA\n98109\nUnited States"
+                        },
+                        "text",
+                        [
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "fn",
+                        {},
+                        "text",
+                        "Amazon AWS Network Operations"
+                     ],
+                     [
+                        "org",
+                        {},
+                        "text",
+                        "Amazon AWS Network Operations"
+                     ],
+                     [
+                        "kind",
+                        {},
+                        "text",
+                        "group"
+                     ],
+                     [
+                        "email",
+                        {},
+                        "text",
+                        "amzn-noc-contact@amazon.com"
+                     ],
+                     [
+                        "tel",
+                        {
+                           "type" : [
+                              "work",
+                              "voice"
+                           ]
+                        },
+                        "text",
+                        "+1-206-555-0000"
+                     ]
+                  ]
+               ]
+            },
+            {
+               "events" : [
+                  {
+                     "eventAction" : "last changed",
+                     "eventDate" : "2022-09-23T09:50:49-04:00"
+                  },
+                  {
+                     "eventAction" : "registration",
+                     "eventDate" : "2013-11-12T22:06:06-05:00"
+                  }
+               ],
+               "handle" : "IPMAN40-ARIN",
+               "links" : [
+                  {
+                     "href" : "https://rdap.arin.net/registry/entity/IPMAN40-ARIN",
+                     "rel" : "self",
+                     "type" : "application/rdap+json",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  },
+                  {
+                     "href" : "https://whois.arin.net/rest/poc/IPMAN40-ARIN",
+                     "rel" : "alternate",
+                     "type" : "application/xml",
+                     "value" : "https://rdap.arin.net/registry/autnum/16509"
+                  }
+               ],
+               "objectClassName" : "entity",
+               "port43" : "whois.arin.net",
+               "remarks" : [
+                  {
+                     "description" : [
+                        "Report abuse incidents to our Abuse POC AEA8-ARIN.  ",
+                        "",
+                        "Thank you for your cooperation."
+                     ],
+                     "title" : "Registration Comments"
+                  }
+               ],
+               "roles" : [
+                  "administrative"
+               ],
+               "status" : [
+                  "validated"
+               ],
+               "vcardArray" : [
+                  "vcard",
+                  [
+                     [
+                        "version",
+                        {},
+                        "text",
+                        "4.0"
+                     ],
+                     [
+                        "adr",
+                        {
+                           "label" : "1918 8th Ave\nSeattle\nWA\n98109\nUnited States"
+                        },
+                        "text",
+                        [
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "fn",
+                        {},
+                        "text",
+                        "IP Management"
+                     ],
+                     [
+                        "org",
+                        {},
+                        "text",
+                        "IP Management"
+                     ],
+                     [
+                        "kind",
+                        {},
+                        "text",
+                        "group"
+                     ],
+                     [
+                        "email",
+                        {},
+                        "text",
+                        "ipmanagement@amazon.com"
+                     ],
+                     [
+                        "tel",
+                        {
+                           "type" : [
+                              "work",
+                              "voice"
+                           ]
+                        },
+                        "text",
+                        "+1-206-555-0000"
+                     ]
+                  ]
+               ]
+            }
+         ],
+         "events" : [
+            {
+               "eventAction" : "last changed",
+               "eventDate" : "2022-09-30T16:19:20-04:00"
+            },
+            {
+               "eventAction" : "registration",
+               "eventDate" : "1995-01-23T00:00:00-05:00"
+            }
+         ],
+         "handle" : "AMAZON-4",
+         "links" : [
+            {
+               "href" : "https://rdap.arin.net/registry/entity/AMAZON-4",
+               "rel" : "self",
+               "type" : "application/rdap+json",
+               "value" : "https://rdap.arin.net/registry/autnum/16509"
+            },
+            {
+               "href" : "https://whois.arin.net/rest/org/AMAZON-4",
+               "rel" : "alternate",
+               "type" : "application/xml",
+               "value" : "https://rdap.arin.net/registry/autnum/16509"
+            }
+         ],
+         "objectClassName" : "entity",
+         "port43" : "whois.arin.net",
+         "roles" : [
+            "registrant"
+         ],
+         "vcardArray" : [
+            "vcard",
+            [
+               [
+                  "version",
+                  {},
+                  "text",
+                  "4.0"
+               ],
+               [
+                  "fn",
+                  {},
+                  "text",
+                  "Amazon.com, Inc."
+               ],
+               [
+                  "adr",
+                  {
+                     "label" : "1918 8th Ave\nSEATTLE\nWA\n98101-1244\nUnited States"
+                  },
+                  "text",
+                  [
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     ""
+                  ]
+               ],
+               [
+                  "kind",
+                  {},
+                  "text",
+                  "org"
+               ]
+            ]
+         ]
+      },
+      {
+         "events" : [
+            {
+               "eventAction" : "last changed",
+               "eventDate" : "2022-01-14T12:21:19-05:00"
+            },
+            {
+               "eventAction" : "registration",
+               "eventDate" : "1999-06-11T10:53:13-04:00"
+            }
+         ],
+         "handle" : "AC6-ORG-ARIN",
+         "links" : [
+            {
+               "href" : "https://rdap.arin.net/registry/entity/AC6-ORG-ARIN",
+               "rel" : "self",
+               "type" : "application/rdap+json",
+               "value" : "https://rdap.arin.net/registry/autnum/16509"
+            },
+            {
+               "href" : "https://whois.arin.net/rest/poc/AC6-ORG-ARIN",
+               "rel" : "alternate",
+               "type" : "application/xml",
+               "value" : "https://rdap.arin.net/registry/autnum/16509"
+            }
+         ],
+         "objectClassName" : "entity",
+         "port43" : "whois.arin.net",
+         "roles" : [
+            "technical"
+         ],
+         "status" : [
+            "validated"
+         ],
+         "vcardArray" : [
+            "vcard",
+            [
+               [
+                  "version",
+                  {},
+                  "text",
+                  "4.0"
+               ],
+               [
+                  "adr",
+                  {
+                     "label" : "PO BOX 81226\nSeattle\nWA\n98108-1226\nUnited States"
+                  },
+                  "text",
+                  [
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     ""
+                  ]
+               ],
+               [
+                  "fn",
+                  {},
+                  "text",
+                  "Amazon-com Incorporated"
+               ],
+               [
+                  "org",
+                  {},
+                  "text",
+                  "Amazon-com Incorporated"
+               ],
+               [
+                  "kind",
+                  {},
+                  "text",
+                  "group"
+               ],
+               [
+                  "email",
+                  {},
+                  "text",
+                  "ipmanagement@amazon.com"
+               ],
+               [
+                  "tel",
+                  {
+                     "type" : [
+                        "work",
+                        "voice"
+                     ]
+                  },
+                  "text",
+                  "+1-206-266-2187"
+               ]
+            ]
+         ]
+      }
+   ],
+   "events" : [
+      {
+         "eventAction" : "last changed",
+         "eventDate" : "2012-03-02T08:03:18-05:00"
+      },
+      {
+         "eventAction" : "registration",
+         "eventDate" : "2000-05-04T00:00:00-04:00"
+      }
+   ],
+   "handle" : "AS16509",
+   "links" : [
+      {
+         "href" : "https://rdap.arin.net/registry/autnum/16509",
+         "rel" : "self",
+         "type" : "application/rdap+json",
+         "value" : "https://rdap.arin.net/registry/autnum/16509"
+      },
+      {
+         "href" : "https://whois.arin.net/rest/asn/AS16509",
+         "rel" : "alternate",
+         "type" : "application/xml",
+         "value" : "https://rdap.arin.net/registry/autnum/16509"
+      }
+   ],
+   "name" : "AMAZON-02",
+   "notices" : [
+      {
+         "description" : [
+            "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
+         ],
+         "links" : [
+            {
+               "href" : "https://www.arin.net/resources/registry/whois/tou/",
+               "rel" : "terms-of-service",
+               "type" : "text/html",
+               "value" : "https://rdap.arin.net/registry/autnum/16509"
+            }
+         ],
+         "title" : "Terms of Service"
+      },
+      {
+         "description" : [
+            "If you see inaccuracies in the results, please visit: "
+         ],
+         "links" : [
+            {
+               "href" : "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
+               "rel" : "inaccuracy-report",
+               "type" : "text/html",
+               "value" : "https://rdap.arin.net/registry/autnum/16509"
+            }
+         ],
+         "title" : "Whois Inaccuracy Reporting"
+      },
+      {
+         "description" : [
+            "Copyright 1997-2023, American Registry for Internet Numbers, Ltd."
+         ],
+         "title" : "Copyright Notice"
+      }
+   ],
+   "objectClassName" : "autnum",
+   "port43" : "whois.arin.net",
+   "rdapConformance" : [
+      "nro_rdap_profile_0",
+      "rdap_level_0",
+      "nro_rdap_profile_asn_flat_0"
+   ],
+   "startAutnum" : 16509,
+   "status" : [
+      "active"
+   ]
+}

icann-rdap-common/src/response/test_files/domain_search_with_redaction.json

@@ -0,0 +1,70 @@
+{
+  "rdapConformance": [
+    "rdap_level_0",
+    "redacted"
+  ],
+  "domainSearchResults":[
+    {
+      "objectClassName": "domain",
+      "ldhName": "example1.com",
+      "links":[
+        {
+          "value":"https://example.com/rdap/domain/example1.com",
+          "rel":"self",
+          "href":"https://example.com/rdap/domain/example1.com",
+          "type":"application/rdap+json"
+        },
+        {
+          "value":"https://example.com/rdap/domain/example1.com",
+          "rel":"related",
+          "href":"https://example.com/rdap/domain/example1.com",
+          "type":"application/rdap+json"
+        }
+      ],
+      "redacted": [
+        {
+          "name": {
+            "type": "Registry Domain ID"
+          },
+          "prePath": "$.domainSearchResults[0].handle",
+          "pathLang": "jsonpath",
+          "method": "removal",
+          "reason": {
+            "type": "Server policy"
+          }
+        }
+      ]
+    },
+    {
+      "objectClassName": "domain",
+      "ldhName": "example2.com",
+      "links":[
+        {
+          "value":"https://example.com/rdap/domain/example2.com",
+          "rel":"self",
+          "href":"https://example.com/rdap/domain/example2.com",
+          "type":"application/rdap+json"
+        },
+        {
+          "value":"https://example.com/rdap/domain/example2.com",
+          "rel":"related",
+          "href":"https://example.com/rdap/domain/example2.com",
+          "type":"application/rdap+json"
+        }
+      ],
+      "redacted": [
+        {
+          "name": {
+            "description": "Registry Domain ID"
+          },
+          "prePath": "$.domainSearchResults[1].handle",
+          "pathLang": "jsonpath",
+          "method": "removal",
+          "reason": {
+            "description": "Server policy"
+          }
+        }
+      ]
+    }
+  ]
+}

icann-rdap-common/src/response/test_files/entity_arin_hostmaster.json

@@ -0,0 +1,52 @@
+{
+  "rdapConformance" : [ "nro_rdap_profile_0", "rdap_level_0" ],
+  "notices" : [ {
+    "title" : "Terms of Service",
+    "description" : [ "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use" ],
+    "links" : [ {
+      "value" : "https://rdap.arin.net/registry/entity/arin-hostmaster",
+      "rel" : "terms-of-service",
+      "type" : "text/html",
+      "href" : "https://www.arin.net/resources/registry/whois/tou/"
+    } ]
+  }, {
+    "title" : "Whois Inaccuracy Reporting",
+    "description" : [ "If you see inaccuracies in the results, please visit: " ],
+    "links" : [ {
+      "value" : "https://rdap.arin.net/registry/entity/arin-hostmaster",
+      "rel" : "inaccuracy-report",
+      "type" : "text/html",
+      "href" : "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
+    } ]
+  }, {
+    "title" : "Copyright Notice",
+    "description" : [ "Copyright 1997-2023, American Registry for Internet Numbers, Ltd." ]
+  } ],
+  "handle" : "ARIN-HOSTMASTER",
+  "vcardArray" : [ "vcard", [ [ "version", { }, "text", "4.0" ], [ "adr", {
+    "label" : "P.O. Box 232290\nCentreville\nVA\n20120\nUnited States"
+  }, "text", [ "", "", "", "", "", "", "" ] ], [ "fn", { }, "text", "Registration Services Department" ], [ "org", { }, "text", "Registration Services Department" ], [ "kind", { }, "text", "group" ], [ "email", { }, "text", "hostmaster@arin.net" ], [ "tel", {
+    "type" : [ "work", "voice" ]
+  }, "text", "+1-703-227-0660" ] ] ],
+  "links" : [ {
+    "value" : "https://rdap.arin.net/registry/entity/arin-hostmaster",
+    "rel" : "self",
+    "type" : "application/rdap+json",
+    "href" : "https://rdap.arin.net/registry/entity/ARIN-HOSTMASTER"
+  }, {
+    "value" : "https://rdap.arin.net/registry/entity/arin-hostmaster",
+    "rel" : "alternate",
+    "type" : "application/xml",
+    "href" : "https://whois.arin.net/rest/poc/ARIN-HOSTMASTER"
+  } ],
+  "events" : [ {
+    "eventAction" : "last changed",
+    "eventDate" : "2022-08-02T15:17:32-04:00"
+  }, {
+    "eventAction" : "registration",
+    "eventDate" : "2003-04-30T12:32:56-04:00"
+  } ],
+  "status" : [ "validated" ],
+  "port43" : "whois.arin.net",
+  "objectClassName" : "entity"
+}

icann-rdap-common/src/response/test_files/error_ripe_net.json

@@ -0,0 +1,35 @@
+{
+   "description" : [
+      "Nameserver not supported"
+   ],
+   "errorCode" : 501,
+   "links" : [
+      {
+         "href" : "http://www.ripe.net/data-tools/support/documentation/terms",
+         "rel" : "copyright",
+         "value" : "http://www.ripe.net/data-tools/support/documentation/terms"
+      }
+   ],
+   "notices" : [
+      {
+         "description" : [
+            "This is the RIPE Database query service. The objects are in RDAP format."
+         ],
+         "links" : [
+            {
+               "href" : "http://www.ripe.net/db/support/db-terms-conditions.pdf",
+               "rel" : "terms-of-service",
+               "type" : "application/pdf"
+            }
+         ],
+         "title" : "Terms and Conditions"
+      }
+   ],
+   "port43" : "whois.ripe.net",
+   "rdapConformance" : [
+      "cidr0",
+      "rdap_level_0",
+      "nro_rdap_profile_0"
+   ],
+   "title" : "501 Not Implemented"
+}

icann-rdap-common/src/response/test_files/help_nic_fr.json

@@ -0,0 +1,52 @@
+{
+   "notices" : [
+      {
+         "description" : [
+            "domain/XXXX",
+            "domains?name=XXXX",
+            "entity/XXXX",
+            "entities?fn=XXXX",
+            "nameserver/XXXX",
+            "nameservers?ip=XXXX",
+            "help"
+         ],
+         "links" : [
+            {
+               "href" : "https://rdap.nic.fr/help",
+               "media" : "application/json",
+               "rel" : "self",
+               "value" : "https://rdap.nic.fr/help"
+            }
+         ],
+         "title" : "RDAP queries can be made on the following types"
+      },
+      {
+         "description" : [
+            "(1) DOMAIN     : Domain queries are made based only on the domain name criterion.",
+            "                 Example: domain/example.tld",
+            "(2) ENTITY     : Registrar queries are made based only on the registrar gurid criterion (IANA ID).",
+            "                 Example: entity/9995",
+            "                 Registrar searches are made based only on the registrar name criterion.",
+            "                 Example: entities?fn=Registry%20Testing%201 for the registrar with name 'Registry Testing 1'",
+            "(3) NAMESERVER : Nameserver queries are made based only on the nameserver name criterion.",
+            "                 Example: nameserver/ns1.example.tld",
+            "                 Nameserver searches are made based only on the IP address criterion.",
+            "                 Example: nameservers?ip=198.51.100.0"
+         ],
+         "links" : [
+            {
+               "href" : "https://rdap.nic.fr/help",
+               "media" : "application/json",
+               "rel" : "self",
+               "value" : "https://rdap.nic.fr/help"
+            }
+         ],
+         "title" : "USE"
+      }
+   ],
+   "rdapConformance" : [
+      "rdap_level_0",
+      "icann_rdap_technical_implementation_guide_0",
+      "icann_rdap_response_profile_0"
+   ]
+}

icann-rdap-common/src/response/test_files/lookup_with_redaction.json

@@ -0,0 +1,393 @@
+{
+  "rdapConformance": [
+    "rdap_level_0",
+    "redacted"
+  ],
+  "objectClassName": "domain",
+  "ldhName": "example.com",
+  "secureDNS": {
+    "delegationSigned": false
+  },
+  "notices": [
+    {
+      "title": "Terms of Use",
+      "description": [
+        "Service subject to Terms of Use."
+      ],
+      "links": [
+        {
+          "rel": "self",
+          "href": "https://www.example.com/terms-of-use",
+          "type": "text/html",
+          "value": "https://www.example.com/terms-of-use"
+        }
+      ]
+    }
+  ],
+  "nameservers": [
+    {
+      "objectClassName": "nameserver",
+      "ldhName": "ns1.example.com"
+    },
+    {
+      "objectClassName": "nameserver",
+      "ldhName": "ns2.example.com"
+    }
+  ],
+  "entities": [
+    {
+      "objectClassName": "entity",
+      "handle": "123",
+      "roles": [
+        "registrar"
+      ],
+      "publicIds": [
+        {
+          "type": "IANA Registrar ID",
+          "identifier": "1"
+        }
+      ],
+      "vcardArray": [
+        "vcard",
+        [
+          [
+            "version",
+            {},
+            "text",
+            "4.0"
+          ],
+          [
+            "fn",
+            {},
+            "text",
+            "Example Registrar Inc."
+          ],
+          [
+            "adr",
+            {},
+            "text",
+            [
+              "",
+              "Suite 100",
+              "123 Example Dr.",
+              "Dulles",
+              "VA",
+              "20166-6503",
+              "US"
+            ]
+          ],
+          [
+            "email",
+            {},
+            "text",
+            "contact@organization.example"
+          ],
+          [
+            "tel",
+            {
+              "type": "voice"
+            },
+            "uri",
+            "tel:+1.7035555555"
+          ],
+          [
+            "tel",
+            {
+              "type": "fax"
+            },
+            "uri",
+            "tel:+1.7035555556"
+          ]
+        ]
+      ],
+      "entities": [
+        {
+          "objectClassName": "entity",
+          "roles": [
+            "abuse"
+          ],
+          "vcardArray": [
+            "vcard",
+            [
+              [
+                "version",
+                {},
+                "text",
+                "4.0"
+              ],
+              [
+                "fn",
+                {},
+                "text",
+                "Abuse Contact"
+              ],
+              [
+                "email",
+                {},
+                "text",
+                "abuse@organization.example"
+              ],
+              [
+                "tel",
+                {
+                  "type": "voice"
+                },
+                "uri",
+                "tel:+1.7035555555"
+              ]
+            ]
+          ]
+        }
+      ]
+    },
+    {
+      "objectClassName": "entity",
+      "handle": "XXXX",
+      "roles": [
+        "registrant"
+      ],
+      "vcardArray": [
+        "vcard",
+        [
+          [
+            "version",
+            {},
+            "text",
+            "4.0"
+          ],
+          [
+            "fn",
+            {},
+            "text",
+            ""
+          ],
+          [
+            "adr",
+            {},
+            "text",
+            [
+              "",
+              "",
+              "",
+              "",
+              "QC",
+              "",
+              "Canada"
+            ]
+          ]
+        ]
+      ]
+    },
+    {
+      "objectClassName": "entity",
+      "handle": "YYYY",
+      "roles": [
+        "technical"
+      ],
+      "vcardArray": [
+        "vcard",
+        [
+          [
+            "version",
+            {},
+            "text",
+            "4.0"
+          ],
+          [
+            "fn",
+            {},
+            "text",
+            ""
+          ],
+          [
+            "org",
+            {},
+            "text",
+            "Example Inc."
+          ],
+          [
+            "adr",
+            {},
+            "text",
+            [
+              "",
+              "Suite 1234",
+              "4321 Rue Somewhere",
+              "Quebec",
+              "QC",
+              "G1V 2M2",
+              "Canada"
+            ]
+          ]
+        ]
+      ]
+    }
+  ],
+  "events": [
+    {
+      "eventAction": "registration",
+      "eventDate": "1997-06-03T00:00:00Z"
+    },
+    {
+      "eventAction": "last changed",
+      "eventDate": "2020-05-28T01:35:00Z"
+    },
+    {
+      "eventAction": "expiration",
+      "eventDate": "2021-06-03T04:00:00Z"
+    }
+  ],
+  "status": [
+    "server delete prohibited",
+    "server update prohibited",
+    "server transfer prohibited",
+    "client transfer prohibited"
+  ],
+  "redacted": [
+    {
+      "name": {
+        "description": "Registry Domain ID"
+      },
+      "prePath": "$.handle",
+      "pathLang": "jsonpath",
+      "method": "removal",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Registrant Name"
+      },
+      "postPath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='fn')][3]",
+      "pathLang": "jsonpath",
+      "method": "emptyValue",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Registrant Organization"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='org')]",
+      "pathLang": "jsonpath",
+      "method": "removal",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Registrant Street"
+      },
+      "postPath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='adr')][3][:3]",
+      "pathLang": "jsonpath",
+      "method": "emptyValue",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Registrant City"
+      },
+      "postPath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='adr')][3][3]",
+      "pathLang": "jsonpath",
+      "method": "emptyValue",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Registrant Postal Code"
+      },
+      "postPath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='adr')][3][5]",
+      "pathLang": "jsonpath",
+      "method": "emptyValue",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Registrant Email"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='email')]",
+      "method": "removal",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Registrant Phone"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[1].type=='voice')]",
+      "method": "removal",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Technical Name"
+      },
+      "postPath": "$.entities[?(@.roles[0]=='technical')].vcardArray[1][?(@[0]=='fn')][3]",
+      "method": "emptyValue",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Technical Email"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='technical')].vcardArray[1][?(@[0]=='email')]",
+      "method": "removal",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Technical Phone"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='technical')].vcardArray[1][?(@[1].type=='voice')]",
+      "method": "removal",
+      "reason": {
+        "description": "Server policy"
+      }
+    },
+    {
+      "name": {
+        "description": "Technical Fax"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='technical')].vcardArray[1][?(@[1].type=='fax')]",
+      "reason": {
+        "description": "Client request"
+      }
+    },
+    {
+      "name": {
+        "description": "Administrative Contact"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='administrative')]",
+      "method": "removal",
+      "reason": {
+        "description": "Refer to the technical contact"
+      }
+    },
+    {
+      "name": {
+        "description": "Billing Contact"
+      },
+      "prePath": "$.entities[?(@.roles[0]=='billing')]",
+      "method": "removal",
+      "reason": {
+        "description": "Refer to the registrant contact"
+      }
+    }
+  ]
+}

icann-rdap-common/src/response/test_files/nameserver_ns1_nic_fr.json

@@ -0,0 +1,146 @@
+{
+   "entities" : [
+      {
+         "events" : [
+            {
+               "eventAction" : "registration",
+               "eventDate" : "2014-07-29T15:35:33Z"
+            },
+            {
+               "eventAction" : "last changed",
+               "eventDate" : "2022-10-12T18:54:01.785057Z"
+            }
+         ],
+         "handle" : "RAR939-FRNIC",
+         "links" : [
+            {
+               "href" : "https://rdap.nic.fr/entity/RAR939-FRNIC",
+               "rel" : "self",
+               "value" : "https://rdap.nic.fr/entity/RAR939-FRNIC"
+            }
+         ],
+         "objectClassName" : "entity",
+         "port43" : "whois.nic.fr",
+         "publicIds" : [
+            {
+               "identifier" : "9999",
+               "type" : "IANA Registrar ID"
+            }
+         ],
+         "remarks" : [
+            {
+               "description" : [
+                  "No"
+               ],
+               "type" : "registrar restricted publication"
+            }
+         ],
+         "roles" : [
+            "sponsor",
+            "registrar"
+         ],
+         "status" : [
+            "active"
+         ],
+         "vcardArray" : [
+            "vcard",
+            [
+               [
+                  "version",
+                  {},
+                  "text",
+                  "4.0"
+               ],
+               [
+                  "fn",
+                  {},
+                  "text",
+                  "Registry Operations"
+               ],
+               [
+                  "tel",
+                  {},
+                  "text",
+                  "+33.139308300"
+               ],
+               [
+                  "tel",
+                  {
+                     "type" : "fax"
+                  },
+                  "text",
+                  "+33.139308301"
+               ],
+               [
+                  "email",
+                  {},
+                  "text",
+                  "support@afnic.fr"
+               ],
+               [
+                  "url",
+                  {},
+                  "uri",
+                  "https://www.afnic.fr"
+               ],
+               [
+                  "adr",
+                  {},
+                  "text",
+                  [
+                     "",
+                     "",
+                     [
+                        "AFNIC",
+                        "immeuble le Stephenson",
+                        "1, rue Stephenson"
+                     ],
+                     "Montigny-Le-Bretonneux",
+                     "",
+                     "78180",
+                     "FR"
+                  ]
+               ]
+            ]
+         ]
+      }
+   ],
+   "handle" : "HOST05-FRNIC",
+   "ipAddresses" : {
+      "v4" : [
+         "192.134.4.1"
+      ],
+      "v6" : [
+         "2001:67c:2218:2::4:1"
+      ]
+   },
+   "ldhName" : "ns1.nic.fr",
+   "links" : [
+      {
+         "href" : "https://rdap.nic.fr/nameserver/ns1.nic.fr",
+         "rel" : "self",
+         "value" : "https://rdap.nic.fr/nameserver/ns1.nic.fr"
+      }
+   ],
+   "objectClassName" : "nameserver",
+   "port43" : "whois.nic.fr",
+   "rdapConformance" : [
+      "rdap_level_0",
+      "icann_rdap_technical_implementation_guide_0",
+      "icann_rdap_response_profile_0"
+   ],
+   "remarks" : [
+      {
+         "description" : [
+            "The list of results does not contain all results due to lack of authorization.",
+            "This may indicate to some clients that proper authorization will yield a longer result set."
+         ],
+         "title" : "result set truncated due to authorization"
+      }
+   ],
+   "status" : [
+      "server update prohibited",
+      "server delete prohibited",
+      "associated"
+   ]
+}

icann-rdap-common/src/response/test_files/network_192_198_0_0.json

@@ -0,0 +1,384 @@
+{
+   "arin_originas0_originautnums" : [
+      53301
+   ],
+   "cidr0_cidrs" : [
+      {
+         "length" : 22,
+         "v4prefix" : "192.198.0.0"
+      }
+   ],
+   "endAddress" : "192.198.3.255",
+   "entities" : [
+      {
+         "entities" : [
+            {
+               "events" : [
+                  {
+                     "eventAction" : "last changed",
+                     "eventDate" : "2022-02-07T09:20:07-05:00"
+                  },
+                  {
+                     "eventAction" : "registration",
+                     "eventDate" : "2011-10-29T11:02:59-04:00"
+                  }
+               ],
+               "handle" : "PETSI-ARIN",
+               "links" : [
+                  {
+                     "href" : "https://rdap.arin.net/registry/entity/PETSI-ARIN",
+                     "rel" : "self",
+                     "type" : "application/rdap+json",
+                     "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+                  },
+                  {
+                     "href" : "https://whois.arin.net/rest/poc/PETSI-ARIN",
+                     "rel" : "alternate",
+                     "type" : "application/xml",
+                     "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+                  }
+               ],
+               "objectClassName" : "entity",
+               "port43" : "whois.arin.net",
+               "roles" : [
+                  "noc",
+                  "technical",
+                  "administrative",
+                  "abuse"
+               ],
+               "status" : [
+                  "validated"
+               ],
+               "vcardArray" : [
+                  "vcard",
+                  [
+                     [
+                        "version",
+                        {},
+                        "text",
+                        "4.0"
+                     ],
+                     [
+                        "adr",
+                        {
+                           "label" : "8162 Sw 81st ST\nEllendale\nMN\n56026\nUnited States"
+                        },
+                        "text",
+                        [
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "fn",
+                        {},
+                        "text",
+                        "Daniel Petsinger"
+                     ],
+                     [
+                        "n",
+                        {},
+                        "text",
+                        [
+                           "Petsinger",
+                           "Daniel",
+                           "",
+                           "",
+                           ""
+                        ]
+                     ],
+                     [
+                        "kind",
+                        {},
+                        "text",
+                        "individual"
+                     ],
+                     [
+                        "email",
+                        {},
+                        "text",
+                        "daniel.petsinger@radiolinkinternet.com"
+                     ],
+                     [
+                        "tel",
+                        {
+                           "type" : [
+                              "work",
+                              "voice"
+                           ]
+                        },
+                        "text",
+                        "+1-507-417-4176"
+                     ]
+                  ]
+               ]
+            }
+         ],
+         "events" : [
+            {
+               "eventAction" : "last changed",
+               "eventDate" : "2017-01-28T08:32:29-05:00"
+            },
+            {
+               "eventAction" : "registration",
+               "eventDate" : "2011-11-02T07:36:05-04:00"
+            }
+         ],
+         "handle" : "DP-41",
+         "links" : [
+            {
+               "href" : "https://rdap.arin.net/registry/entity/DP-41",
+               "rel" : "self",
+               "type" : "application/rdap+json",
+               "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+            },
+            {
+               "href" : "https://whois.arin.net/rest/org/DP-41",
+               "rel" : "alternate",
+               "type" : "application/xml",
+               "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+            }
+         ],
+         "objectClassName" : "entity",
+         "port43" : "whois.arin.net",
+         "remarks" : [
+            {
+               "description" : [
+                  "http://www.radiolinkinternet.com",
+                  "Standard NOC hours are 9am to 5pm CST"
+               ],
+               "title" : "Registration Comments"
+            }
+         ],
+         "roles" : [
+            "registrant"
+         ],
+         "vcardArray" : [
+            "vcard",
+            [
+               [
+                  "version",
+                  {},
+                  "text",
+                  "4.0"
+               ],
+               [
+                  "fn",
+                  {},
+                  "text",
+                  "Radio Link Internet"
+               ],
+               [
+                  "adr",
+                  {
+                     "label" : "8162 SW 81st St\nEllendale\nMN\n56026\nUnited States"
+                  },
+                  "text",
+                  [
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     ""
+                  ]
+               ],
+               [
+                  "kind",
+                  {},
+                  "text",
+                  "org"
+               ]
+            ]
+         ]
+      },
+      {
+         "events" : [
+            {
+               "eventAction" : "last changed",
+               "eventDate" : "2022-02-07T09:20:07-05:00"
+            },
+            {
+               "eventAction" : "registration",
+               "eventDate" : "2011-10-29T11:02:59-04:00"
+            }
+         ],
+         "handle" : "PETSI-ARIN",
+         "links" : [
+            {
+               "href" : "https://rdap.arin.net/registry/entity/PETSI-ARIN",
+               "rel" : "self",
+               "type" : "application/rdap+json",
+               "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+            },
+            {
+               "href" : "https://whois.arin.net/rest/poc/PETSI-ARIN",
+               "rel" : "alternate",
+               "type" : "application/xml",
+               "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+            }
+         ],
+         "objectClassName" : "entity",
+         "port43" : "whois.arin.net",
+         "roles" : [
+            "noc",
+            "abuse",
+            "technical"
+         ],
+         "status" : [
+            "validated"
+         ],
+         "vcardArray" : [
+            "vcard",
+            [
+               [
+                  "version",
+                  {},
+                  "text",
+                  "4.0"
+               ],
+               [
+                  "adr",
+                  {
+                     "label" : "8162 Sw 81st ST\nEllendale\nMN\n56026\nUnited States"
+                  },
+                  "text",
+                  [
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     "",
+                     ""
+                  ]
+               ],
+               [
+                  "fn",
+                  {},
+                  "text",
+                  "Daniel Petsinger"
+               ],
+               [
+                  "n",
+                  {},
+                  "text",
+                  [
+                     "Petsinger",
+                     "Daniel",
+                     "",
+                     "",
+                     ""
+                  ]
+               ],
+               [
+                  "kind",
+                  {},
+                  "text",
+                  "individual"
+               ],
+               [
+                  "email",
+                  {},
+                  "text",
+                  "daniel.petsinger@radiolinkinternet.com"
+               ],
+               [
+                  "tel",
+                  {
+                     "type" : [
+                        "work",
+                        "voice"
+                     ]
+                  },
+                  "text",
+                  "+1-507-417-4176"
+               ]
+            ]
+         ]
+      }
+   ],
+   "events" : [
+      {
+         "eventAction" : "last changed",
+         "eventDate" : "2013-03-19T09:14:03-04:00"
+      },
+      {
+         "eventAction" : "registration",
+         "eventDate" : "2013-01-31T18:11:17-05:00"
+      }
+   ],
+   "handle" : "NET-192-198-0-0-1",
+   "ipVersion" : "v4",
+   "links" : [
+      {
+         "href" : "https://rdap.arin.net/registry/ip/192.198.0.0",
+         "rel" : "self",
+         "type" : "application/rdap+json",
+         "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+      },
+      {
+         "href" : "https://whois.arin.net/rest/net/NET-192-198-0-0-1",
+         "rel" : "alternate",
+         "type" : "application/xml",
+         "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+      }
+   ],
+   "name" : "RADIOLINK-ARIN-1",
+   "notices" : [
+      {
+         "description" : [
+            "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
+         ],
+         "links" : [
+            {
+               "href" : "https://www.arin.net/resources/registry/whois/tou/",
+               "rel" : "terms-of-service",
+               "type" : "text/html",
+               "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+            }
+         ],
+         "title" : "Terms of Service"
+      },
+      {
+         "description" : [
+            "If you see inaccuracies in the results, please visit: "
+         ],
+         "links" : [
+            {
+               "href" : "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
+               "rel" : "inaccuracy-report",
+               "type" : "text/html",
+               "value" : "https://rdap.arin.net/registry/ip/192.198.0.0"
+            }
+         ],
+         "title" : "Whois Inaccuracy Reporting"
+      },
+      {
+         "description" : [
+            "Copyright 1997-2023, American Registry for Internet Numbers, Ltd."
+         ],
+         "title" : "Copyright Notice"
+      }
+   ],
+   "objectClassName" : "ip network",
+   "parentHandle" : "NET-192-0-0-0-0",
+   "port43" : "whois.arin.net",
+   "rdapConformance" : [
+      "nro_rdap_profile_0",
+      "rdap_level_0",
+      "cidr0",
+      "arin_originas0"
+   ],
+   "startAddress" : "192.198.0.0",
+   "status" : [
+      "active"
+   ],
+   "type" : "DIRECT ALLOCATION"
+}