From 5da14042f70711ea5cf66e034699730335462f66 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 5 May 2024 14:08:03 +0200
Subject: Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../go.d.plugin/modules/dnsquery/dnsquery.go       | 120 +++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 src/go/collectors/go.d.plugin/modules/dnsquery/dnsquery.go

(limited to 'src/go/collectors/go.d.plugin/modules/dnsquery/dnsquery.go')

diff --git a/src/go/collectors/go.d.plugin/modules/dnsquery/dnsquery.go b/src/go/collectors/go.d.plugin/modules/dnsquery/dnsquery.go
new file mode 100644
index 000000000..04a8603e0
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/dnsquery/dnsquery.go
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package dnsquery
+
+import (
+	_ "embed"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+
+	"github.com/miekg/dns"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("dns_query", module.Creator{
+		JobConfigSchema: configSchema,
+		Defaults: module.Defaults{
+			UpdateEvery: 5,
+		},
+		Create: func() module.Module { return New() },
+	})
+}
+
+func New() *DNSQuery {
+	return &DNSQuery{
+		Config: Config{
+			Timeout:     web.Duration(time.Second * 2),
+			Network:     "udp",
+			RecordTypes: []string{"A"},
+			Port:        53,
+		},
+		newDNSClient: func(network string, timeout time.Duration) dnsClient {
+			return &dns.Client{
+				Net:         network,
+				ReadTimeout: timeout,
+			}
+		},
+	}
+}
+
+type Config struct {
+	UpdateEvery int          `yaml:"update_every" json:"update_every"`
+	Timeout     web.Duration `yaml:"timeout" json:"timeout"`
+	Domains     []string     `yaml:"domains" json:"domains"`
+	Servers     []string     `yaml:"servers" json:"servers"`
+	Network     string       `yaml:"network" json:"network"`
+	RecordType  string       `yaml:"record_type" json:"record_type"`
+	RecordTypes []string     `yaml:"record_types" json:"record_types"`
+	Port        int          `yaml:"port" json:"port"`
+}
+
+type (
+	DNSQuery struct {
+		module.Base
+		Config `yaml:",inline" json:""`
+
+		charts *module.Charts
+
+		dnsClient    dnsClient
+		newDNSClient func(network string, duration time.Duration) dnsClient
+
+		recordTypes map[string]uint16
+	}
+	dnsClient interface {
+		Exchange(msg *dns.Msg, address string) (response *dns.Msg, rtt time.Duration, err error)
+	}
+)
+
+func (d *DNSQuery) Configuration() any {
+	return d.Config
+}
+
+func (d *DNSQuery) Init() error {
+	if err := d.verifyConfig(); err != nil {
+		d.Errorf("config validation: %v", err)
+		return err
+	}
+
+	rt, err := d.initRecordTypes()
+	if err != nil {
+		d.Errorf("init record type: %v", err)
+		return err
+	}
+	d.recordTypes = rt
+
+	charts, err := d.initCharts()
+	if err != nil {
+		d.Errorf("init charts: %v", err)
+		return err
+	}
+	d.charts = charts
+
+	return nil
+}
+
+func (d *DNSQuery) Check() error {
+	return nil
+}
+
+func (d *DNSQuery) Charts() *module.Charts {
+	return d.charts
+}
+
+func (d *DNSQuery) Collect() map[string]int64 {
+	mx, err := d.collect()
+	if err != nil {
+		d.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+	return mx
+}
+
+func (d *DNSQuery) Cleanup() {}
-- 
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