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// Copyright 2019, Chef. All rights reserved.
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// https://github.com/q191201771/lal
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//
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// Use of this source code is governed by a MIT-style license
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// that can be found in the License file.
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//
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// Author: Chef (191201771@qq.com)
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package rtmp
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import (
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"net"
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log "github.com/q191201771/naza/pkg/nazalog"
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)
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type ServerObserver interface {
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OnRtmpConnect(session *ServerSession, opa ObjectPairArray)
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OnNewRtmpPubSession(session *ServerSession) bool // 返回true则允许推流，返回false则强制关闭这个连接
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OnDelRtmpPubSession(session *ServerSession)
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OnNewRtmpSubSession(session *ServerSession) bool // 返回true则允许拉流，返回false则强制关闭这个连接
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OnDelRtmpSubSession(session *ServerSession)
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}
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type Server struct {
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observer ServerObserver
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addr string
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ln net.Listener
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}
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func NewServer(observer ServerObserver, addr string) *Server {
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return &Server{
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observer: observer,
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addr: addr,
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}
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}
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func (server *Server) Listen() (err error) {
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if server.ln, err = net.Listen("tcp", server.addr); err != nil {
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return
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}
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log.Infof("start rtmp server listen. addr=%s", server.addr)
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return
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}
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func (server *Server) RunLoop() error {
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for {
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conn, err := server.ln.Accept()
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if err != nil {
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return err
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}
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go server.handleTcpConnect(conn)
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}
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}
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func (server *Server) Dispose() {
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if server.ln == nil {
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return
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}
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if err := server.ln.Close(); err != nil {
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log.Error(err)
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}
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}
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func (server *Server) handleTcpConnect(conn net.Conn) {
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log.Infof("accept a rtmp connection. remoteAddr=%s", conn.RemoteAddr().String())
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session := NewServerSession(server, conn)
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err := session.RunLoop()
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log.Infof("[%s] rtmp loop done. err=%v", session.uniqueKey, err)
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switch session.t {
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case ServerSessionTypeUnknown:
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// noop
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case ServerSessionTypePub:
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server.observer.OnDelRtmpPubSession(session)
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case ServerSessionTypeSub:
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server.observer.OnDelRtmpSubSession(session)
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}
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}
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// ServerSessionObserver
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func (server *Server) OnRtmpConnect(session *ServerSession, opa ObjectPairArray) {
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server.observer.OnRtmpConnect(session, opa)
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}
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// ServerSessionObserver
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func (server *Server) OnNewRtmpPubSession(session *ServerSession) {
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if !server.observer.OnNewRtmpPubSession(session) {
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log.Warnf("dispose PubSession since pub exist.")
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session.Dispose()
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return
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}
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}
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// ServerSessionObserver
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func (server *Server) OnNewRtmpSubSession(session *ServerSession) {
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if !server.observer.OnNewRtmpSubSession(session) {
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session.Dispose()
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return
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}
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}
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