Adding upstream version 1.34.4.

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

plugins/inputs/webhooks/mandrill/README.md

@@ -0,0 +1,22 @@
+# mandrill webhook
+
+You should configure your Mandrill's Webhooks to point at the `webhooks`
+service. To do this go to [mandrillapp.com](https://mandrillapp.com) and click
+`Settings > Webhooks`. In the resulting page, click on `Add a Webhook`, select
+all events, and set the `URL` to `http://<my_ip>:1619/mandrill`, and click on
+`Create Webhook`.
+
+## Events
+
+See the [webhook doc](https://mandrill.zendesk.com/hc/en-us/articles/205583307-Message-Event-Webhook-format).
+
+All events for logs the original timestamp, the event name and the unique
+identifier of the message that generated the event.
+
+**Tags:**
+
+* 'event' = `event.event` string
+
+**Fields:**
+
+* 'id' = `event._id` string

plugins/inputs/webhooks/mandrill/mandrill_webhooks.go

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+package mandrill
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/gorilla/mux"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/common/auth"
+)
+
+type Webhook struct {
+	Path string
+	acc  telegraf.Accumulator
+	log  telegraf.Logger
+	auth.BasicAuth
+}
+
+// Register registers the webhook with the provided router
+func (md *Webhook) Register(router *mux.Router, acc telegraf.Accumulator, log telegraf.Logger) {
+	router.HandleFunc(md.Path, returnOK).Methods("HEAD")
+	router.HandleFunc(md.Path, md.eventHandler).Methods("POST")
+
+	md.log = log
+	md.log.Infof("Started the webhooks_mandrill on %s", md.Path)
+	md.acc = acc
+}
+
+func returnOK(w http.ResponseWriter, _ *http.Request) {
+	w.WriteHeader(http.StatusOK)
+}
+
+func (md *Webhook) eventHandler(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+
+	if !md.Verify(r) {
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	body, err := io.ReadAll(r.Body)
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	data, err := url.ParseQuery(string(body))
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	var events []mandrillEvent
+	err = json.Unmarshal([]byte(data.Get("mandrill_events")), &events)
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+
+	for _, event := range events {
+		md.acc.AddFields("mandrill_webhooks", event.fields(), event.tags(), time.Unix(event.TimeStamp, 0))
+	}
+
+	w.WriteHeader(http.StatusOK)
+}

plugins/inputs/webhooks/mandrill/mandrill_webhooks_events.go

@@ -0,0 +1,19 @@
+package mandrill
+
+type mandrillEvent struct {
+	EventName string `json:"event"`
+	TimeStamp int64  `json:"ts"`
+	ID        string `json:"_id"`
+}
+
+func (me *mandrillEvent) tags() map[string]string {
+	return map[string]string{
+		"event": me.EventName,
+	}
+}
+
+func (me *mandrillEvent) fields() map[string]interface{} {
+	return map[string]interface{}{
+		"id": me.ID,
+	}
+}

plugins/inputs/webhooks/mandrill/mandrill_webhooks_test.go

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+package mandrill
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/influxdata/telegraf/testutil"
+)
+
+func postWebhooks(t *testing.T, md *Webhook, eventBody string) *httptest.ResponseRecorder {
+	body := url.Values{}
+	body.Set("mandrill_events", eventBody)
+	req, err := http.NewRequest("POST", "/mandrill", strings.NewReader(body.Encode()))
+	require.NoError(t, err)
+	w := httptest.NewRecorder()
+
+	md.eventHandler(w, req)
+
+	return w
+}
+
+func headRequest(t *testing.T) *httptest.ResponseRecorder {
+	req, err := http.NewRequest("HEAD", "/mandrill", strings.NewReader(""))
+	require.NoError(t, err)
+	w := httptest.NewRecorder()
+
+	returnOK(w, req)
+
+	return w
+}
+
+func TestHead(t *testing.T) {
+	resp := headRequest(t)
+	if resp.Code != http.StatusOK {
+		t.Errorf("HEAD returned HTTP status code %v.\nExpected %v", resp.Code, http.StatusOK)
+	}
+}
+
+func TestSendEvent(t *testing.T) {
+	var acc testutil.Accumulator
+	md := &Webhook{Path: "/mandrill", acc: &acc}
+	resp := postWebhooks(t, md, "["+readFile(t, "testdata/send_event.json")+"]")
+	if resp.Code != http.StatusOK {
+		t.Errorf("POST send returned HTTP status code %v.\nExpected %v", resp.Code, http.StatusOK)
+	}
+
+	fields := map[string]interface{}{
+		"id": "id1",
+	}
+
+	tags := map[string]string{
+		"event": "send",
+	}
+
+	acc.AssertContainsTaggedFields(t, "mandrill_webhooks", fields, tags)
+}
+
+func TestMultipleEvents(t *testing.T) {
+	var acc testutil.Accumulator
+	md := &Webhook{Path: "/mandrill", acc: &acc}
+	resp := postWebhooks(t, md, "["+readFile(t, "testdata/send_event.json")+","+readFile(t, "testdata/hard_bounce_event.json")+"]")
+	if resp.Code != http.StatusOK {
+		t.Errorf("POST send returned HTTP status code %v.\nExpected %v", resp.Code, http.StatusOK)
+	}
+
+	fields := map[string]interface{}{
+		"id": "id1",
+	}
+
+	tags := map[string]string{
+		"event": "send",
+	}
+
+	acc.AssertContainsTaggedFields(t, "mandrill_webhooks", fields, tags)
+
+	fields = map[string]interface{}{
+		"id": "id2",
+	}
+
+	tags = map[string]string{
+		"event": "hard_bounce",
+	}
+	acc.AssertContainsTaggedFields(t, "mandrill_webhooks", fields, tags)
+}
+
+func readFile(t *testing.T, filePath string) string {
+	data, err := os.ReadFile(filePath)
+	require.NoErrorf(t, err, "could not read from file %s", filePath)
+
+	return string(data)
+}

plugins/inputs/webhooks/mandrill/testdata/hard_bounce_event.json

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+{
+  "event": "hard_bounce",
+  "msg": {
+    "ts": 1365109999,
+    "subject": "This an example webhook message",
+    "email": "example.webhook@mandrillapp.com",
+    "sender": "example.sender@mandrillapp.com",
+    "tags": [
+      "webhook-example"
+    ],
+    "state": "bounced",
+    "metadata": {
+      "user_id": 111
+    },
+    "_id": "exampleaaaaaaaaaaaaaaaaaaaaaaaaa2",
+    "_version": "exampleaaaaaaaaaaaaaaa",
+    "bounce_description": "bad_mailbox",
+    "bgtools_code": 10,
+    "diag": "smtp;550 5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces."
+  },
+  "_id": "id2",
+  "ts": 1384954004
+}

plugins/inputs/webhooks/mandrill/testdata/send_event.json

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+{
+  "event": "send",
+  "msg": {
+    "ts": 1365109999,
+    "subject": "This an example webhook message",
+    "email": "example.webhook@mandrillapp.com",
+    "sender": "example.sender@mandrillapp.com",
+    "tags": [
+      "webhook-example"
+    ],
+    "opens": [
+
+    ],
+    "clicks": [
+
+    ],
+    "state": "sent",
+    "metadata": {
+      "user_id": 111
+    },
+    "_id": "exampleaaaaaaaaaaaaaaaaaaaaaaaaa",
+    "_version": "exampleaaaaaaaaaaaaaaa"
+  },
+  "_id": "id1",
+  "ts": 1384954004
+}