New record handled: TXT

services/txt.go

@@ -0,0 +1,101 @@
+// Copyright or © or Copr. happyDNS (2020)
+//
+// contact@happydns.org
+//
+// This software is a computer program whose purpose is to provide a modern
+// interface to interact with DNS systems.
+//
+// This software is governed by the CeCILL license under French law and abiding
+// by the rules of distribution of free software.  You can use, modify and/or
+// redistribute the software under the terms of the CeCILL license as
+// circulated by CEA, CNRS and INRIA at the following URL
+// "http://www.cecill.info".
+//
+// As a counterpart to the access to the source code and rights to copy, modify
+// and redistribute granted by the license, users are provided only with a
+// limited warranty and the software's author, the holder of the economic
+// rights, and the successive licensors have only limited liability.
+//
+// In this respect, the user's attention is drawn to the risks associated with
+// loading, using, modifying and/or developing or reproducing the software by
+// the user in light of its specific status of free software, that may mean
+// that it is complicated to manipulate, and that also therefore means that it
+// is reserved for developers and experienced professionals having in-depth
+// computer knowledge. Users are therefore encouraged to load and test the
+// software's suitability as regards their requirements in conditions enabling
+// the security of their systems and/or data to be ensured and, more generally,
+// to use and operate it in the same conditions as regards security.
+//
+// The fact that you are presently reading this means that you have had
+// knowledge of the CeCILL license and that you accept its terms.
+
+package svcs
+
+import (
+	"strings"
+
+	"github.com/miekg/dns"
+
+	"git.happydns.org/happydns/model"
+)
+
+type TXT struct {
+	Content string `json:"content" happydns:"label=Content,description=Your text to publish in the zone"`
+}
+
+func (ss *TXT) GetNbResources() int {
+	return 1
+}
+
+func (ss *TXT) GenComment(origin string) string {
+	return ss.Content
+}
+
+func (ss *TXT) GenRRs(domain string, ttl uint32, origin string) (rrs []dns.RR) {
+	rrs = append(rrs, &dns.TXT{
+		Hdr: dns.RR_Header{
+			Name:   domain,
+			Rrtype: dns.TypeTXT,
+			Class:  dns.ClassINET,
+			Ttl:    ttl,
+		},
+		Txt: []string{ss.Content},
+	})
+	return
+}
+
+func txt_analyze(a *Analyzer) (err error) {
+	for _, record := range a.SearchRR(AnalyzerRecordFilter{Type: dns.TypeTXT}) {
+		if txt, ok := record.(*dns.TXT); ok {
+			err = a.UseRR(
+				record,
+				txt.Header().Name,
+				&TXT{Content: strings.Join(txt.Txt, "")},
+			)
+			if err != nil {
+				return
+			}
+		}
+	}
+
+	return nil
+}
+
+func init() {
+	RegisterService(
+		func() happydns.Service {
+			return &TXT{}
+		},
+		txt_analyze,
+		ServiceInfos{
+			Name:        "Text record",
+			Description: "Publish some text in your zone.",
+			Restrictions: ServiceRestrictions{
+				NeedTypes: []uint16{
+					dns.TypeTXT,
+				},
+			},
+		},
+		100,
+	)
+}