mirror of
https://github.com/strukturag/nextcloud-spreed-signaling.git
synced 2024-09-07 21:43:04 +00:00
151 lines
4.4 KiB
Go
151 lines
4.4 KiB
Go
/**
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* Standalone signaling server for the Nextcloud Spreed app.
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* Copyright (C) 2024 struktur AG
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*
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* @author Joachim Bauch <bauch@struktur.de>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package signaling
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import (
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"context"
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"log"
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"sync/atomic"
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"github.com/notedit/janus-go"
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)
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type mcuJanusRemotePublisher struct {
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mcuJanusPublisher
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ref atomic.Int64
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port int
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rtcpPort int
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}
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func (p *mcuJanusRemotePublisher) addRef() int64 {
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return p.ref.Add(1)
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}
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func (p *mcuJanusRemotePublisher) release() bool {
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return p.ref.Add(-1) == 0
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}
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func (p *mcuJanusRemotePublisher) Port() int {
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return p.port
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}
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func (p *mcuJanusRemotePublisher) RtcpPort() int {
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return p.rtcpPort
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}
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func (p *mcuJanusRemotePublisher) handleEvent(event *janus.EventMsg) {
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if videoroom := getPluginStringValue(event.Plugindata, pluginVideoRoom, "videoroom"); videoroom != "" {
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ctx := context.TODO()
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switch videoroom {
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case "destroyed":
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log.Printf("Remote publisher %d: associated room has been destroyed, closing", p.handleId)
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go p.Close(ctx)
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case "slow_link":
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// Ignore, processed through "handleSlowLink" in the general events.
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default:
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log.Printf("Unsupported videoroom remote publisher event in %d: %+v", p.handleId, event)
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}
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} else {
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log.Printf("Unsupported remote publisher event in %d: %+v", p.handleId, event)
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}
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}
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func (p *mcuJanusRemotePublisher) handleHangup(event *janus.HangupMsg) {
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log.Printf("Remote publisher %d received hangup (%s), closing", p.handleId, event.Reason)
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go p.Close(context.Background())
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}
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func (p *mcuJanusRemotePublisher) handleDetached(event *janus.DetachedMsg) {
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log.Printf("Remote publisher %d received detached, closing", p.handleId)
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go p.Close(context.Background())
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}
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func (p *mcuJanusRemotePublisher) handleConnected(event *janus.WebRTCUpMsg) {
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log.Printf("Remote publisher %d received connected", p.handleId)
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p.mcu.publisherConnected.Notify(getStreamId(p.id, p.streamType))
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}
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func (p *mcuJanusRemotePublisher) handleSlowLink(event *janus.SlowLinkMsg) {
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if event.Uplink {
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log.Printf("Remote publisher %s (%d) is reporting %d lost packets on the uplink (Janus -> client)", p.listener.PublicId(), p.handleId, event.Lost)
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} else {
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log.Printf("Remote publisher %s (%d) is reporting %d lost packets on the downlink (client -> Janus)", p.listener.PublicId(), p.handleId, event.Lost)
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}
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}
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func (p *mcuJanusRemotePublisher) NotifyReconnected() {
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ctx := context.TODO()
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handle, session, roomId, _, err := p.mcu.getOrCreatePublisherHandle(ctx, p.id, p.streamType, p.bitrate)
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if err != nil {
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log.Printf("Could not reconnect remote publisher %s: %s", p.id, err)
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// TODO(jojo): Retry
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return
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}
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p.handle = handle
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p.handleId = handle.Id
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p.session = session
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p.roomId = roomId
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log.Printf("Remote publisher %s reconnected on handle %d", p.id, p.handleId)
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}
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func (p *mcuJanusRemotePublisher) Close(ctx context.Context) {
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if !p.release() {
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return
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}
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p.mu.Lock()
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if handle := p.handle; handle != nil {
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response, err := p.handle.Request(ctx, map[string]interface{}{
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"request": "remove_remote_publisher",
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"room": p.roomId,
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"id": streamTypeUserIds[p.streamType],
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})
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if err != nil {
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log.Printf("Error removing remote publisher %s in room %d: %s", p.id, p.roomId, err)
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} else {
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log.Printf("Removed remote publisher: %+v", response)
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}
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if p.roomId != 0 {
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destroy_msg := map[string]interface{}{
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"request": "destroy",
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"room": p.roomId,
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}
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if _, err := handle.Request(ctx, destroy_msg); err != nil {
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log.Printf("Error destroying room %d: %s", p.roomId, err)
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} else {
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log.Printf("Room %d destroyed", p.roomId)
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}
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p.mcu.mu.Lock()
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delete(p.mcu.remotePublishers, getStreamId(p.id, p.streamType))
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p.mcu.mu.Unlock()
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p.roomId = 0
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}
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}
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p.closeClient(ctx)
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p.mu.Unlock()
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}
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