Adding upstream version 1.34.4.

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

plugins/inputs/ldap/openldap.go

@@ -0,0 +1,89 @@
+package ldap
+
+import (
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/go-ldap/ldap/v3"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/metric"
+)
+
+var attrMapOpenLDAP = map[string]string{
+	"monitorCounter":     "",
+	"monitoredInfo":      "",
+	"monitorOpInitiated": "_initiated",
+	"monitorOpCompleted": "_completed",
+	"olmMDBPagesMax":     "_mdb_pages_max",
+	"olmMDBPagesUsed":    "_mdb_pages_used",
+	"olmMDBPagesFree":    "_mdb_pages_free",
+	"olmMDBReadersMax":   "_mdb_readers_max",
+	"olmMDBReadersUsed":  "_mdb_readers_used",
+	"olmMDBEntries":      "_mdb_entries",
+}
+
+func (l *LDAP) newOpenLDAPConfig() []request {
+	req := ldap.NewSearchRequest(
+		"cn=Monitor",
+		ldap.ScopeWholeSubtree,
+		ldap.NeverDerefAliases,
+		0,
+		0,
+		false,
+		"(|(objectClass=monitorCounterObject)(objectClass=monitorOperation)(objectClass=monitoredObject)(objectClass=monitorContainer))",
+		[]string{"monitorCounter", "monitorOpInitiated", "monitorOpCompleted", "monitoredInfo"},
+		nil,
+	)
+	return []request{{req, l.convertOpenLDAP}}
+}
+
+func (l *LDAP) convertOpenLDAP(result *ldap.SearchResult, ts time.Time) []telegraf.Metric {
+	tags := map[string]string{
+		"server": l.host,
+		"port":   l.port,
+	}
+
+	fields := make(map[string]interface{})
+	for _, entry := range result.Entries {
+		prefix := openLDAPAttrConvertDN(entry.DN, l.ReverseFieldNames)
+		for _, attr := range entry.Attributes {
+			if len(attr.Values[0]) == 0 {
+				continue
+			}
+			if v, err := strconv.ParseInt(attr.Values[0], 10, 64); err == nil {
+				fields[prefix+attrMapOpenLDAP[attr.Name]] = v
+			}
+		}
+	}
+
+	m := metric.New("openldap", tags, fields, ts)
+	return []telegraf.Metric{m}
+}
+
+// Convert a DN to a field prefix, eg cn=Read,cn=Waiters,cn=Monitor becomes waiters_read
+// Assumes the last part of the DN is cn=Monitor and we want to drop it
+func openLDAPAttrConvertDN(dn string, reverse bool) string {
+	// Normalize DN
+	prefix := strings.TrimSpace(dn)
+	prefix = strings.ToLower(prefix)
+	prefix = strings.ReplaceAll(prefix, " ", "_")
+	prefix = strings.ReplaceAll(prefix, "cn=", "")
+
+	// Filter the base
+	parts := strings.Split(prefix, ",")
+	for i, p := range parts {
+		if p == "monitor" {
+			parts = append(parts[:i], parts[i+1:]...)
+			break
+		}
+	}
+
+	if reverse {
+		for i, j := 0, len(parts)-1; i < j; i, j = i+1, j-1 {
+			parts[i], parts[j] = parts[j], parts[i]
+		}
+	}
+	return strings.Join(parts, "_")
+}