138 lines
3.6 KiB
Go
138 lines
3.6 KiB
Go
// Copyright or © or Copr. happyDNS (2020)
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//
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// contact@happydns.org
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//
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// This software is a computer program whose purpose is to provide a modern
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// interface to interact with DNS systems.
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//
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// This software is governed by the CeCILL license under French law and abiding
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// by the rules of distribution of free software. You can use, modify and/or
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// redistribute the software under the terms of the CeCILL license as
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// circulated by CEA, CNRS and INRIA at the following URL
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// "http://www.cecill.info".
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//
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// As a counterpart to the access to the source code and rights to copy, modify
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// and redistribute granted by the license, users are provided only with a
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// limited warranty and the software's author, the holder of the economic
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// rights, and the successive licensors have only limited liability.
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//
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// In this respect, the user's attention is drawn to the risks associated with
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// loading, using, modifying and/or developing or reproducing the software by
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// the user in light of its specific status of free software, that may mean
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// that it is complicated to manipulate, and that also therefore means that it
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// is reserved for developers and experienced professionals having in-depth
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// computer knowledge. Users are therefore encouraged to load and test the
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// software's suitability as regards their requirements in conditions enabling
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// the security of their systems and/or data to be ensured and, more generally,
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// to use and operate it in the same conditions as regards security.
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//
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// The fact that you are presently reading this means that you have had
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// knowledge of the CeCILL license and that you accept its terms.
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package svcs
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import (
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"bytes"
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"strconv"
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"strings"
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"github.com/miekg/dns"
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"git.happydns.org/happydns/model"
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)
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type MatrixIM struct {
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Matrix []*SRV `json:"matrix"`
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}
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func (s *MatrixIM) GetNbResources() int {
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return len(s.Matrix)
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}
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func (s *MatrixIM) GenComment(origin string) string {
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dest := map[string][]uint16{}
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destloop:
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for _, srv := range s.Matrix {
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for _, port := range dest[srv.Target] {
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if port == srv.Port {
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continue destloop
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}
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}
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dest[srv.Target] = append(dest[srv.Target], srv.Port)
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}
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var buffer bytes.Buffer
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first := true
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for dn, ports := range dest {
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dn = strings.TrimSuffix(dn, "."+origin)
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if !first {
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buffer.WriteString("; ")
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} else {
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first = !first
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}
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buffer.WriteString(dn)
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buffer.WriteString(" (")
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firstport := true
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for _, port := range ports {
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if !firstport {
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buffer.WriteString(", ")
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} else {
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firstport = !firstport
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}
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buffer.WriteString(strconv.Itoa(int(port)))
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}
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buffer.WriteString(")")
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}
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return buffer.String()
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}
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func (s *MatrixIM) GenRRs(domain string, ttl uint32) (rrs []dns.RR) {
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for _, matrix := range s.Matrix {
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rrs = append(rrs, matrix.GenRRs("_matrix._tcp."+domain, ttl)...)
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}
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return
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}
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func matrix_analyze(a *Analyzer) error {
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matrixDomains := map[string]*MatrixIM{}
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for _, record := range a.searchRR(AnalyzerRecordFilter{Prefix: "_matrix._tcp.", Type: dns.TypeSRV}) {
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if srv := parseSRV(record); srv != nil {
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domain := strings.TrimPrefix(record.Header().Name, "_matrix._tcp.")
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if _, ok := matrixDomains[domain]; !ok {
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matrixDomains[domain] = &MatrixIM{}
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}
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matrixDomains[domain].Matrix = append(matrixDomains[domain].Matrix, srv)
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a.useRR(
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record,
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domain,
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matrixDomains[domain],
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)
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}
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}
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return nil
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}
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func init() {
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RegisterService(
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"git.happydns.org/happydns/services/MatrixIM",
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func() happydns.Service {
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return &MatrixIM{}
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},
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matrix_analyze,
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ServiceInfos{
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Name: "Matrix IM",
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Description: "This indicates a Matrix IM server",
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Categories: []string{
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"im",
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},
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},
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0,
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)
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}
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