happyDomain/services/abstract/matrix.go

138 lines
3.3 KiB
Go

// This file is part of the happyDomain (R) project.
// Copyright (c) 2020-2024 happyDomain
// Authors: Pierre-Olivier Mercier, et al.
//
// This program is offered under a commercial and under the AGPL license.
// For commercial licensing, contact us at <contact@happydomain.org>.
//
// For AGPL licensing:
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package abstract
import (
"bytes"
"strconv"
"strings"
"github.com/StackExchange/dnscontrol/v4/models"
"github.com/miekg/dns"
"git.happydns.org/happyDomain/model"
"git.happydns.org/happyDomain/services"
"git.happydns.org/happyDomain/utils"
)
type MatrixIM struct {
Matrix []*svcs.SRV `json:"matrix"`
}
func (s *MatrixIM) GetNbResources() int {
return len(s.Matrix)
}
func (s *MatrixIM) GenComment(origin string) string {
dest := map[string][]uint16{}
destloop:
for _, srv := range s.Matrix {
for _, port := range dest[srv.Target] {
if port == srv.Port {
continue destloop
}
}
dest[srv.Target] = append(dest[srv.Target], srv.Port)
}
var buffer bytes.Buffer
first := true
for dn, ports := range dest {
dn = strings.TrimSuffix(dn, "."+origin)
if !first {
buffer.WriteString("; ")
} else {
first = !first
}
buffer.WriteString(dn)
buffer.WriteString(" (")
firstport := true
for _, port := range ports {
if !firstport {
buffer.WriteString(", ")
} else {
firstport = !firstport
}
buffer.WriteString(strconv.Itoa(int(port)))
}
buffer.WriteString(")")
}
return buffer.String()
}
func (s *MatrixIM) GenRRs(domain string, ttl uint32, origin string) (rrs models.Records) {
for _, matrix := range s.Matrix {
rrs = append(rrs, matrix.GenRRs(utils.DomainJoin("_matrix._tcp", domain), ttl, origin)...)
}
return
}
func matrix_analyze(a *svcs.Analyzer) error {
matrixDomains := map[string]*MatrixIM{}
for _, record := range a.SearchRR(svcs.AnalyzerRecordFilter{Prefix: "_matrix._tcp.", Type: dns.TypeSRV}) {
if srv := svcs.ParseSRV(record); srv != nil {
domain := strings.TrimPrefix(record.NameFQDN, "_matrix._tcp.")
if _, ok := matrixDomains[domain]; !ok {
matrixDomains[domain] = &MatrixIM{}
}
matrixDomains[domain].Matrix = append(matrixDomains[domain].Matrix, srv)
a.UseRR(
record,
domain,
matrixDomains[domain],
)
}
}
return nil
}
func init() {
svcs.RegisterService(
func() happydns.Service {
return &MatrixIM{}
},
matrix_analyze,
svcs.ServiceInfos{
Name: "Matrix IM",
Description: "Communicate on Matrix using your domain.",
Family: svcs.Abstract,
Categories: []string{
"im",
},
Restrictions: svcs.ServiceRestrictions{
NearAlone: true,
Single: true,
NeedTypes: []uint16{
dns.TypeSRV,
},
},
},
1,
)
}