mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-02 01:21:33 +08:00
1065 lines
34 KiB
C++
1065 lines
34 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2016 xiongziliang <771730766@qq.com>
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <atomic>
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#include "Common/config.h"
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#include "UDPServer.h"
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#include "RtspSession.h"
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#include "Device/base64.h"
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#include "Util/mini.h"
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#include "Util/MD5.h"
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#include "Util/onceToken.h"
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#include "Util/TimeTicker.h"
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#include "Util/NoticeCenter.h"
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#include "Network/sockutil.h"
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using namespace Config;
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using namespace ZL::Util;
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using namespace ZL::Network;
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namespace ZL {
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namespace Rtsp {
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string dateHeader() {
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char buf[200];
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time_t tt = time(NULL);
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strftime(buf, sizeof buf, "Date: %a, %b %d %Y %H:%M:%S GMT\r\n", gmtime(&tt));
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return buf;
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}
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unordered_map<string, weak_ptr<RtspSession> > RtspSession::g_mapGetter;
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unordered_map<void *, std::shared_ptr<RtspSession> > RtspSession::g_mapPostter;
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recursive_mutex RtspSession::g_mtxGetter; //对quicktime上锁保护
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recursive_mutex RtspSession::g_mtxPostter; //对quicktime上锁保护
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unordered_map<string, RtspSession::rtspCMDHandle> RtspSession::g_mapCmd;
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RtspSession::RtspSession(const std::shared_ptr<ThreadPool> &pTh, const Socket::Ptr &pSock) :
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TcpSession(pTh, pSock), m_pSender(pSock) {
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static onceToken token( []() {
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g_mapCmd.emplace("OPTIONS",&RtspSession::handleReq_Options);
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g_mapCmd.emplace("DESCRIBE",&RtspSession::handleReq_Describe);
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g_mapCmd.emplace("SETUP",&RtspSession::handleReq_Setup);
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g_mapCmd.emplace("PLAY",&RtspSession::handleReq_Play);
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g_mapCmd.emplace("PAUSE",&RtspSession::handleReq_Pause);
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g_mapCmd.emplace("TEARDOWN",&RtspSession::handleReq_Teardown);
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g_mapCmd.emplace("GET",&RtspSession::handleReq_Get);
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g_mapCmd.emplace("POST",&RtspSession::handleReq_Post);
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g_mapCmd.emplace("SET_PARAMETER",&RtspSession::handleReq_SET_PARAMETER);
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g_mapCmd.emplace("GET_PARAMETER",&RtspSession::handleReq_SET_PARAMETER);
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}, []() {});
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DebugL << get_peer_ip();
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}
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RtspSession::~RtspSession() {
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if (m_onDestory) {
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m_onDestory();
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}
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DebugL << get_peer_ip();
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}
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void RtspSession::shutdown(){
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if (_sock) {
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_sock->emitErr(SockException(Err_other, "self shutdown"));
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}
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if (m_bBase64need && !_sock) {
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//quickTime http postter,and self is detached from tcpServer
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lock_guard<recursive_mutex> lock(g_mtxPostter);
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g_mapPostter.erase(this);
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}
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if (m_pBrdcaster) {
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m_pBrdcaster->setDetachCB(this, nullptr);
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m_pBrdcaster.reset();
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}
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if (m_pRtpReader) {
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m_pRtpReader.reset();
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}
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}
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void RtspSession::onError(const SockException& err) {
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TraceL << err.getErrCode() << " " << err.what();
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if (m_bListenPeerUdpData) {
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//取消UDP端口监听
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UDPServer::Instance().stopListenPeer(get_peer_ip().data(), this);
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m_bListenPeerUdpData = false;
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}
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if (!m_bBase64need && m_strSessionCookie.size() != 0) {
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//quickTime http getter
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lock_guard<recursive_mutex> lock(g_mtxGetter);
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g_mapGetter.erase(m_strSessionCookie);
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}
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if (m_bBase64need && err.getErrCode() == Err_eof) {
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//quickTime http postter,正在发送rtp; QuickTime只是断开了请求连接,请继续发送rtp
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_sock = nullptr;
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lock_guard<recursive_mutex> lock(g_mtxPostter);
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//为了保证脱离TCPServer后还能正常运作,需要保持本对象的强引用
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g_mapPostter.emplace(this, dynamic_pointer_cast<RtspSession>(shared_from_this()));
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TraceL << "quickTime will not send request any more!";
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}
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//流量统计事件广播
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GET_CONFIG_AND_REGISTER(uint32_t,iFlowThreshold,Broadcast::kFlowThreshold);
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if(m_ui64TotalBytes > iFlowThreshold * 1024){
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport,m_mediaInfo,m_ui64TotalBytes,*this);
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}
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}
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void RtspSession::onManager() {
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if (m_ticker.createdTime() > 10 * 1000) {
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if (m_strSession.size() == 0) {
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WarnL << "非法链接:" << get_peer_ip();
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shutdown();
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return;
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}
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}
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if (m_rtpType != PlayerBase::RTP_TCP && m_ticker.elapsedTime() > 15 * 1000) {
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WarnL << "RTSP会话超时:" << get_peer_ip();
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shutdown();
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return;
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}
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}
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void RtspSession::onRecv(const Buffer::Ptr &pBuf) {
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m_ticker.resetTime();
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char tmp[2 * 1024];
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m_pcBuf = tmp;
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m_ui64TotalBytes += pBuf->size();
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if (m_bBase64need) {
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//quicktime 加密后的rtsp请求，需要解密
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av_base64_decode((uint8_t *) m_pcBuf, pBuf->data(), sizeof(tmp));
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m_parser.Parse(m_pcBuf); //rtsp请求解析
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//TraceL << buf;
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} else {
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//TraceL << request;
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m_parser.Parse(pBuf->data()); //rtsp请求解析
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}
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string strCmd = m_parser.Method(); //提取出请求命令字
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m_iCseq = atoi(m_parser["CSeq"].data());
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bool ret = false;
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auto it = g_mapCmd.find(strCmd);
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if (it != g_mapCmd.end()) {
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auto fun = it->second;
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ret = (this->*fun)();
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m_parser.Clear();
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} else {
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ret = (m_rtpType == PlayerBase::RTP_TCP);
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}
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if (!ret) {
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shutdown();
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WarnL << "cmd=" << strCmd;
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}
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}
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bool RtspSession::handleReq_Options() {
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//支持这些命令
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int n = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
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"CSeq: %d\r\n"
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"Server: %s-%0.2f(build in %s)\r\n"
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"%s"
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"Public: OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY,"
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" PAUSE, SET_PARAMETER, GET_PARAMETER\r\n\r\n",
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m_iCseq, SERVER_NAME,
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RTSP_VERSION, RTSP_BUILDTIME,
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dateHeader().data());
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send(m_pcBuf, n);
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return true;
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}
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bool RtspSession::handleReq_Describe() {
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{
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//解析url获取媒体名称
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m_strUrl = m_parser.Url();
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m_mediaInfo.parse(m_parser.FullUrl());
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}
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if (!findStream()) {
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//未找到相应的MediaSource
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send_StreamNotFound();
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return false;
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}
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weak_ptr<RtspSession> weakSelf = dynamic_pointer_cast<RtspSession>(shared_from_this());
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//该请求中的认证信息
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auto authorization = m_parser["Authorization"];
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onGetRealm invoker = [weakSelf,authorization](const string &realm){
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if(realm.empty()){
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//无需认证,回复sdp
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onAuthSuccess(weakSelf);
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return;
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}
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//该流需要认证
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onAuthUser(weakSelf,realm,authorization);
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};
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//广播是否需要认证事件
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if(!NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastOnGetRtspRealm,
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m_mediaInfo.m_app,
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m_mediaInfo.m_streamid,
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invoker,
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*this)){
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//无人监听此事件，说明无需认证
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invoker("");
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}
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return true;
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}
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void RtspSession::onAuthSuccess(const weak_ptr<RtspSession> &weakSelf) {
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auto strongSelf = weakSelf.lock();
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if(!strongSelf){
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//本对象已销毁
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return;
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}
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strongSelf->async([weakSelf](){
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auto strongSelf = weakSelf.lock();
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if(!strongSelf){
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//本对象已销毁
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return;
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}
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char response[2 * 1024];
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int n = sprintf(response,
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"RTSP/1.0 200 OK\r\n"
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"CSeq: %d\r\n"
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"Server: %s-%0.2f(build in %s)\r\n"
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"%s"
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"x-Accept-Retransmit: our-retransmit\r\n"
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"x-Accept-Dynamic-Rate: 1\r\n"
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"Content-Base: %s/\r\n"
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"Content-Type: application/sdp\r\n"
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"Content-Length: %d\r\n\r\n%s",
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strongSelf->m_iCseq, SERVER_NAME,
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RTSP_VERSION, RTSP_BUILDTIME,
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dateHeader().data(), strongSelf->m_strUrl.data(),
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(int) strongSelf->m_strSdp.length(), strongSelf->m_strSdp.data());
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strongSelf->send(response, n);
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});
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}
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void RtspSession::onAuthFailed(const weak_ptr<RtspSession> &weakSelf,const string &realm) {
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auto strongSelf = weakSelf.lock();
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if(!strongSelf){
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//本对象已销毁
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return;
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}
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strongSelf->async([weakSelf,realm]() {
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auto strongSelf = weakSelf.lock();
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if (!strongSelf) {
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//本对象已销毁
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return;
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}
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int n;
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char response[2 * 1024];
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GET_CONFIG_AND_REGISTER(bool,authBasic,Config::Rtsp::kAuthBasic);
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if (!authBasic) {
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//我们需要客户端优先以md5方式认证
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strongSelf->m_strNonce = makeRandStr(32);
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n = sprintf(response,
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"RTSP/1.0 401 Unauthorized\r\n"
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"CSeq: %d\r\n"
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"Server: %s-%0.2f(build in %s)\r\n"
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"%s"
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"WWW-Authenticate:Digest realm=\"%s\",nonce=\"%s\"\r\n\r\n",
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strongSelf->m_iCseq, SERVER_NAME,
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RTSP_VERSION, RTSP_BUILDTIME,
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dateHeader().data(), realm.data(), strongSelf->m_strNonce.data());
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}else {
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//当然我们也支持base64认证,但是我们不建议这样做
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n = sprintf(response,
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"RTSP/1.0 401 Unauthorized\r\n"
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"CSeq: %d\r\n"
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"Server: %s-%0.2f(build in %s)\r\n"
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"%s"
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"WWW-Authenticate:Basic realm=\"%s\"\r\n\r\n",
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strongSelf->m_iCseq, SERVER_NAME,
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RTSP_VERSION, RTSP_BUILDTIME,
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dateHeader().data(), realm.data());
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}
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strongSelf->send(response, n);
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});
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}
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void RtspSession::onAuthBasic(const weak_ptr<RtspSession> &weakSelf,const string &realm,const string &strBase64){
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//base64认证
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char user_pwd_buf[512];
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av_base64_decode((uint8_t *)user_pwd_buf,strBase64.data(),strBase64.size());
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auto user_pwd_vec = split(user_pwd_buf,":");
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if(user_pwd_vec.size() < 2){
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//认证信息格式不合法，回复401 Unauthorized
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onAuthFailed(weakSelf,realm);
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return;
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}
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auto user = user_pwd_vec[0];
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auto pwd = user_pwd_vec[1];
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onAuth invoker = [pwd,realm,weakSelf](bool encrypted,const string &good_pwd){
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if(!encrypted && pwd == good_pwd){
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//提供的是明文密码且匹配正确
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onAuthSuccess(weakSelf);
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}else{
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//密码错误
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onAuthFailed(weakSelf,realm);
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}
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};
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auto strongSelf = weakSelf.lock();
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if(!strongSelf){
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//本对象已销毁
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return;
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}
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//此时必须提供明文密码
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bool must_no_encrypt = true;
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if(!NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastOnRtspAuth,user,must_no_encrypt,invoker,*strongSelf)){
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//表明该流需要认证却没监听请求密码事件，这一般是大意的程序所为，警告之
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WarnL << "请监听kBroadcastOnRtspAuth事件！";
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//但是我们还是忽略认证以便完成播放
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//我们输入的密码是明文
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invoker(false,pwd);
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}
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}
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void RtspSession::onAuthDigest(const weak_ptr<RtspSession> &weakSelf,const string &realm,const string &strMd5){
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auto strongSelf = weakSelf.lock();
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if(!strongSelf){
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return;
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}
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DebugL << strMd5;
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auto mapTmp = Parser::parseArgs(strMd5,",","=");
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decltype(mapTmp) map;
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for(auto &pr : mapTmp){
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map[trim(string(pr.first)," \"")] = trim(pr.second," \"");
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}
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//check realm
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if(realm != map["realm"]){
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TraceL << "realm not mached:" << realm << "," << map["realm"];
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onAuthFailed(weakSelf,realm);
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return ;
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}
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//check nonce
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auto nonce = map["nonce"];
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if(strongSelf->m_strNonce != nonce){
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TraceL << "nonce not mached:" << nonce << "," << strongSelf->m_strNonce;
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onAuthFailed(weakSelf,realm);
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return ;
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}
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//check username and uri
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auto username = map["username"];
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auto uri = map["uri"];
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auto response = map["response"];
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if(username.empty() || uri.empty() || response.empty()){
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TraceL << "username/uri/response empty:" << username << "," << uri << "," << response;
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onAuthFailed(weakSelf,realm);
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return ;
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}
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auto realInvoker = [weakSelf,realm,nonce,uri,username,response](bool ignoreAuth,bool encrypted,const string &good_pwd){
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if(ignoreAuth){
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//忽略认证
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onAuthSuccess(weakSelf);
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TraceL << "auth ignored";
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return;
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}
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/*
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response计算方法如下：
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RTSP客户端应该使用username + password并计算response如下:
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(1)当password为MD5编码,则
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response = md5( password:nonce:md5(public_method:url) );
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(2)当password为ANSI字符串,则
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response= md5( md5(username:realm:password):nonce:md5(public_method:url) );
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*/
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auto encrypted_pwd = good_pwd;
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if(!encrypted){
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//提供的是明文密码
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encrypted_pwd = MD5(username+ ":" + realm + ":" + good_pwd).hexdigest();
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}
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auto good_response = MD5( encrypted_pwd + ":" + nonce + ":" + MD5(string("DESCRIBE") + ":" + uri).hexdigest()).hexdigest();
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if(strcasecmp(good_response.data(),response.data()) == 0){
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//认证成功！md5不区分大小写
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onAuthSuccess(weakSelf);
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TraceL << "onAuthSuccess";
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}else{
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//认证失败！
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onAuthFailed(weakSelf,realm);
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TraceL << "onAuthFailed";
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}
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};
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onAuth invoker = [realInvoker](bool encrypted,const string &good_pwd){
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realInvoker(false,encrypted,good_pwd);
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};
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|
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//此时可以提供明文或md5加密的密码
|
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bool must_no_encrypt = false;
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if(!NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastOnRtspAuth,username,must_no_encrypt,invoker,*strongSelf)){
|
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//表明该流需要认证却没监听请求密码事件，这一般是大意的程序所为，警告之
|
||
WarnL << "请监听kBroadcastOnRtspAuth事件！";
|
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//但是我们还是忽略认证以便完成播放
|
||
realInvoker(true,true,"");
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}
|
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}
|
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|
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void RtspSession::onAuthUser(const weak_ptr<RtspSession> &weakSelf,const string &realm,const string &authorization){
|
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//请求中包含认证信息
|
||
auto authType = FindField(authorization.data(),NULL," ");
|
||
auto authStr = FindField(authorization.data()," ",NULL);
|
||
if(authType.empty() || authStr.empty()){
|
||
//认证信息格式不合法，回复401 Unauthorized
|
||
onAuthFailed(weakSelf,realm);
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return;
|
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}
|
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if(authType == "Basic"){
|
||
//base64认证，需要明文密码
|
||
onAuthBasic(weakSelf,realm,authStr);
|
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}else if(authType == "Digest"){
|
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//md5认证
|
||
onAuthDigest(weakSelf,realm,authStr);
|
||
}else{
|
||
//其他认证方式？不支持！
|
||
onAuthFailed(weakSelf,realm);
|
||
}
|
||
}
|
||
inline void RtspSession::send_StreamNotFound() {
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 404 Stream Not Found\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Connection: Close\r\n\r\n",
|
||
m_iCseq, SERVER_NAME,
|
||
RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data());
|
||
send(m_pcBuf, n);
|
||
}
|
||
inline void RtspSession::send_UnsupportedTransport() {
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 461 Unsupported Transport\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Connection: Close\r\n\r\n",
|
||
m_iCseq, SERVER_NAME,
|
||
RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data());
|
||
send(m_pcBuf, n);
|
||
}
|
||
|
||
inline void RtspSession::send_SessionNotFound() {
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 454 Session Not Found\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Connection: Close\r\n\r\n",
|
||
m_iCseq, SERVER_NAME,
|
||
RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data());
|
||
send(m_pcBuf, n);
|
||
|
||
/*405 Method Not Allowed*/
|
||
|
||
}
|
||
bool RtspSession::handleReq_Setup() {
|
||
//处理setup命令，该函数可能进入多次
|
||
//track id
|
||
int trackid = atoi( FindField( m_parser.Url().data(),
|
||
m_aTrackInfo[0].trackStyle.data(),
|
||
NULL).data());
|
||
int trackIdx = getTrackIndexByTrackId(trackid);
|
||
if (trackIdx == -1) {
|
||
//未找到相应track
|
||
return false;
|
||
}
|
||
RtspTrack &trackRef = m_aTrackInfo[trackIdx];
|
||
if (trackRef.inited) {
|
||
//已经初始化过该Track
|
||
return false;
|
||
}
|
||
trackRef.inited = true; //现在初始化
|
||
|
||
auto strongRing = m_pWeakRing.lock();
|
||
if (!strongRing) {
|
||
//the media source is released!
|
||
send_NotAcceptable();
|
||
return false;
|
||
}
|
||
|
||
if(!m_bSetUped){
|
||
m_bSetUped = true;
|
||
auto strTransport = m_parser["Transport"];
|
||
if(strTransport.find("TCP") != string::npos){
|
||
m_rtpType = PlayerBase::RTP_TCP;
|
||
}else if(strTransport.find("multicast") != string::npos){
|
||
m_rtpType = PlayerBase::RTP_MULTICAST;
|
||
}else{
|
||
m_rtpType = PlayerBase::RTP_UDP;
|
||
}
|
||
}
|
||
|
||
if (!m_pRtpReader && m_rtpType != PlayerBase::RTP_MULTICAST) {
|
||
m_pRtpReader = strongRing->attach();
|
||
weak_ptr<RtspSession> weakSelf = dynamic_pointer_cast<RtspSession>(shared_from_this());
|
||
m_pRtpReader->setDetachCB([weakSelf]() {
|
||
auto strongSelf = weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return;
|
||
}
|
||
strongSelf->safeShutdown();
|
||
});
|
||
}
|
||
|
||
switch (m_rtpType) {
|
||
case PlayerBase::RTP_TCP: {
|
||
int iLen = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Transport: RTP/AVP/TCP;unicast;"
|
||
"interleaved=%d-%d;ssrc=%s;mode=play\r\n"
|
||
"Session: %s\r\n"
|
||
"x-Transport-Options: late-tolerance=1.400000\r\n"
|
||
"x-Dynamic-Rate: 1\r\n\r\n",
|
||
m_iCseq, SERVER_NAME,
|
||
RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(), trackid * 2,
|
||
trackid * 2 + 1,
|
||
printSSRC(trackRef.ssrc).data(),
|
||
m_strSession.data());
|
||
send(m_pcBuf, iLen);
|
||
}
|
||
break;
|
||
case PlayerBase::RTP_UDP: {
|
||
//我们用trackIdx区分rtp和rtcp包
|
||
auto pSockRtp = UDPServer::Instance().getSock(get_local_ip().data(),2*trackIdx);
|
||
if (!pSockRtp) {
|
||
//分配端口失败
|
||
WarnL << "分配rtp端口失败";
|
||
send_NotAcceptable();
|
||
return false;
|
||
}
|
||
auto pSockRtcp = UDPServer::Instance().getSock(get_local_ip().data(),2*trackIdx + 1 ,pSockRtp->get_local_port() + 1);
|
||
if (!pSockRtcp) {
|
||
//分配端口失败
|
||
WarnL << "分配rtcp端口失败";
|
||
send_NotAcceptable();
|
||
return false;
|
||
}
|
||
m_apUdpSock[trackIdx] = pSockRtp;
|
||
//设置客户端内网端口信息
|
||
string strClientPort = FindField(m_parser["Transport"].data(), "client_port=", NULL);
|
||
uint16_t ui16PeerPort = atoi( FindField(strClientPort.data(), NULL, "-").data());
|
||
struct sockaddr_in peerAddr;
|
||
peerAddr.sin_family = AF_INET;
|
||
peerAddr.sin_port = htons(ui16PeerPort);
|
||
peerAddr.sin_addr.s_addr = inet_addr(get_peer_ip().data());
|
||
bzero(&(peerAddr.sin_zero), sizeof peerAddr.sin_zero);
|
||
m_apPeerUdpAddr[trackIdx].reset((struct sockaddr *) (new struct sockaddr_in(peerAddr)));
|
||
//尝试获取客户端nat映射地址
|
||
startListenPeerUdpData();
|
||
//InfoL << "分配端口:" << srv_port;
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Transport: RTP/AVP/UDP;unicast;"
|
||
"client_port=%s;server_port=%d-%d;ssrc=%s;mode=play\r\n"
|
||
"Session: %s\r\n\r\n",
|
||
m_iCseq, SERVER_NAME,
|
||
RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(), strClientPort.data(),
|
||
pSockRtp->get_local_port(), pSockRtcp->get_local_port(),
|
||
printSSRC(trackRef.ssrc).data(),
|
||
m_strSession.data());
|
||
send(m_pcBuf, n);
|
||
}
|
||
break;
|
||
case PlayerBase::RTP_MULTICAST: {
|
||
if(!m_pBrdcaster){
|
||
m_pBrdcaster = RtpBroadCaster::get(get_local_ip(),m_mediaInfo.m_vhost, m_mediaInfo.m_app, m_mediaInfo.m_streamid);
|
||
if (!m_pBrdcaster) {
|
||
send_NotAcceptable();
|
||
return false;
|
||
}
|
||
weak_ptr<RtspSession> weakSelf = dynamic_pointer_cast<RtspSession>(shared_from_this());
|
||
m_pBrdcaster->setDetachCB(this, [weakSelf]() {
|
||
auto strongSelf = weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return;
|
||
}
|
||
strongSelf->safeShutdown();
|
||
});
|
||
}
|
||
int iSrvPort = m_pBrdcaster->getPort(trackid);
|
||
//我们用trackIdx区分rtp和rtcp包
|
||
auto pSockRtcp = UDPServer::Instance().getSock(get_local_ip().data(),2*trackIdx + 1,iSrvPort + 1);
|
||
if (!pSockRtcp) {
|
||
//分配端口失败
|
||
WarnL << "分配rtcp端口失败";
|
||
send_NotAcceptable();
|
||
return false;
|
||
}
|
||
startListenPeerUdpData();
|
||
GET_CONFIG_AND_REGISTER(uint32_t,udpTTL,MultiCast::kUdpTTL);
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Transport: RTP/AVP;multicast;destination=%s;"
|
||
"source=%s;port=%d-%d;ttl=%d;ssrc=%s\r\n"
|
||
"Session: %s\r\n\r\n",
|
||
m_iCseq, SERVER_NAME,
|
||
RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(), m_pBrdcaster->getIP().data(),
|
||
get_local_ip().data(), iSrvPort, pSockRtcp->get_local_port(),
|
||
udpTTL,printSSRC(trackRef.ssrc).data(),
|
||
m_strSession.data());
|
||
send(m_pcBuf, n);
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
bool RtspSession::handleReq_Play() {
|
||
if (m_uiTrackCnt == 0) {
|
||
//还没有Describe
|
||
return false;
|
||
}
|
||
if (m_parser["Session"] != m_strSession) {
|
||
send_SessionNotFound();
|
||
return false;
|
||
}
|
||
auto onRes = [this](const string &err){
|
||
bool authSuccess = err.empty();
|
||
char response[2 * 1024];
|
||
m_pcBuf = response;
|
||
if(!authSuccess && m_bFirstPlay){
|
||
//第一次play是播放，否则是恢复播放。只对播放鉴权
|
||
int n = sprintf(m_pcBuf,
|
||
"RTSP/1.0 401 Unauthorized\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Content-Type: text/plain\r\n"
|
||
"Content-Length: %d\r\n\r\n%s",
|
||
m_iCseq, SERVER_NAME,
|
||
RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(),(int)err.size(),err.data());
|
||
send(m_pcBuf,n);
|
||
shutdown();
|
||
return;
|
||
}
|
||
if(m_pRtpReader){
|
||
weak_ptr<RtspSession> weakSelf = dynamic_pointer_cast<RtspSession>(shared_from_this());
|
||
SockUtil::setNoDelay(m_pSender->rawFD(), false);
|
||
m_pRtpReader->setReadCB([weakSelf](const RtpPacket::Ptr &pack) {
|
||
auto strongSelf = weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return;
|
||
}
|
||
strongSelf->async([weakSelf,pack](){
|
||
auto strongSelf = weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return;
|
||
}
|
||
strongSelf->sendRtpPacket(pack);
|
||
});
|
||
|
||
});
|
||
}
|
||
|
||
auto pMediaSrc = m_pMediaSrc.lock();
|
||
uint32_t iStamp = 0;
|
||
if(pMediaSrc){
|
||
auto strRange = m_parser["Range"];
|
||
if (strRange.size() && !m_bFirstPlay) {
|
||
auto strStart = FindField(strRange.data(), "npt=", "-");
|
||
if (strStart == "now") {
|
||
strStart = "0";
|
||
}
|
||
auto iStartTime = atof(strStart.data());
|
||
InfoL << "rtsp seekTo:" << iStartTime;
|
||
pMediaSrc->seekTo(iStartTime * 1000);
|
||
iStamp = pMediaSrc->getStamp();
|
||
}else if(pMediaSrc->getRing()->readerCount() == 1){
|
||
//第一个消费者
|
||
pMediaSrc->seekTo(0);
|
||
iStamp = 0;
|
||
}else{
|
||
iStamp = pMediaSrc->getStamp();
|
||
}
|
||
for (unsigned int i = 0; i < m_uiTrackCnt; i++) {
|
||
auto &track = m_aTrackInfo[i];
|
||
track.ssrc = pMediaSrc->getSsrc(track.trackId);
|
||
track.seq = pMediaSrc->getSeqence(track.trackId);
|
||
track.timeStamp = pMediaSrc->getTimestamp(track.trackId);
|
||
}
|
||
}
|
||
m_bFirstPlay = false;
|
||
int iLen = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Session: %s\r\n"
|
||
"Range: npt=%.2f-\r\n"
|
||
"RTP-Info: ", m_iCseq, SERVER_NAME, RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(), m_strSession.data(),iStamp/1000.0);
|
||
|
||
for (unsigned int i = 0; i < m_uiTrackCnt; i++) {
|
||
auto &track = m_aTrackInfo[i];
|
||
if (track.inited == false) {
|
||
//还有track没有setup
|
||
shutdown();
|
||
return;
|
||
}
|
||
iLen += sprintf(m_pcBuf + iLen, "url=%s/%s%d;seq=%d;rtptime=%u,",
|
||
m_strUrl.data(), track.trackStyle.data(),
|
||
track.trackId, track.seq,track.timeStamp);
|
||
}
|
||
iLen -= 1;
|
||
(m_pcBuf)[iLen] = '\0';
|
||
iLen += sprintf(m_pcBuf + iLen, "\r\n\r\n");
|
||
send(m_pcBuf, iLen);
|
||
};
|
||
|
||
weak_ptr<RtspSession> weakSelf = dynamic_pointer_cast<RtspSession>(shared_from_this());
|
||
Broadcast::AuthInvoker invoker = [weakSelf,onRes](const string &err){
|
||
auto strongSelf = weakSelf.lock();
|
||
if(!strongSelf){
|
||
return;
|
||
}
|
||
strongSelf->async([weakSelf,onRes,err](){
|
||
auto strongSelf = weakSelf.lock();
|
||
if(!strongSelf){
|
||
return;
|
||
}
|
||
onRes(err);
|
||
});
|
||
};
|
||
auto flag = NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaPlayed,m_mediaInfo,invoker,*this);
|
||
if(!flag){
|
||
//该事件无人监听,默认不鉴权
|
||
onRes("");
|
||
}
|
||
return true;
|
||
}
|
||
|
||
bool RtspSession::handleReq_Pause() {
|
||
if (m_parser["Session"] != m_strSession) {
|
||
send_SessionNotFound();
|
||
return false;
|
||
}
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Session: %s\r\n\r\n", m_iCseq, SERVER_NAME, RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(), m_strSession.data());
|
||
send(m_pcBuf, n);
|
||
if(m_pRtpReader){
|
||
m_pRtpReader->setReadCB(nullptr);
|
||
}
|
||
return true;
|
||
|
||
}
|
||
|
||
bool RtspSession::handleReq_Teardown() {
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Session: %s\r\n\r\n", m_iCseq, SERVER_NAME, RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(), m_strSession.data());
|
||
|
||
send(m_pcBuf, n);
|
||
TraceL << "播放器断开连接!";
|
||
return false;
|
||
}
|
||
|
||
bool RtspSession::handleReq_Get() {
|
||
m_strSessionCookie = m_parser["x-sessioncookie"];
|
||
int n = sprintf(m_pcBuf, "HTTP/1.0 200 OK\r\n"
|
||
"%s"
|
||
"Connection: close\r\n"
|
||
"Cache-Control: no-store\r\n"
|
||
"Pragma: no-cache\r\n"
|
||
"Content-Type: application/x-rtsp-tunnelled\r\n\r\n",
|
||
dateHeader().data());
|
||
//注册GET
|
||
lock_guard<recursive_mutex> lock(g_mtxGetter);
|
||
g_mapGetter[m_strSessionCookie] = dynamic_pointer_cast<RtspSession>(shared_from_this());
|
||
send(m_pcBuf, n);
|
||
return true;
|
||
|
||
}
|
||
|
||
bool RtspSession::handleReq_Post() {
|
||
lock_guard<recursive_mutex> lock(g_mtxGetter);
|
||
string sessioncookie = m_parser["x-sessioncookie"];
|
||
//Poster 找到 Getter
|
||
auto it = g_mapGetter.find(sessioncookie);
|
||
if (it == g_mapGetter.end()) {
|
||
return false;
|
||
}
|
||
m_bBase64need = true;
|
||
//Poster 找到Getter的SOCK
|
||
auto strongSession = it->second.lock();
|
||
g_mapGetter.erase(sessioncookie);
|
||
if (!strongSession) {
|
||
send_SessionNotFound();
|
||
return false;
|
||
}
|
||
initSender(strongSession);
|
||
return true;
|
||
}
|
||
|
||
bool RtspSession::handleReq_SET_PARAMETER() {
|
||
//TraceL<<endl;
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 200 OK\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Session: %s\r\n\r\n", m_iCseq, SERVER_NAME, RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data(), m_strSession.data());
|
||
send(m_pcBuf, n);
|
||
return true;
|
||
}
|
||
|
||
inline void RtspSession::send_NotAcceptable() {
|
||
int n = sprintf(m_pcBuf, "RTSP/1.0 406 Not Acceptable\r\n"
|
||
"CSeq: %d\r\n"
|
||
"Server: %s-%0.2f(build in %s)\r\n"
|
||
"%s"
|
||
"Connection: Close\r\n\r\n", m_iCseq, SERVER_NAME, RTSP_VERSION, RTSP_BUILDTIME,
|
||
dateHeader().data());
|
||
send(m_pcBuf, n);
|
||
|
||
}
|
||
|
||
inline bool RtspSession::findStream() {
|
||
RtspMediaSource::Ptr pMediaSrc =
|
||
dynamic_pointer_cast<RtspMediaSource>( MediaSource::find(RTSP_SCHEMA,m_mediaInfo.m_vhost, m_mediaInfo.m_app,m_mediaInfo.m_streamid) );
|
||
if (!pMediaSrc) {
|
||
WarnL << "No such stream:" << m_mediaInfo.m_vhost << " " << m_mediaInfo.m_app << " " << m_mediaInfo.m_streamid;
|
||
return false;
|
||
}
|
||
m_strSdp = pMediaSrc->getSdp();
|
||
m_pWeakRing = pMediaSrc->getRing();
|
||
|
||
m_uiTrackCnt = parserSDP(m_strSdp, m_aTrackInfo);
|
||
if (m_uiTrackCnt == 0 || m_uiTrackCnt > 2) {
|
||
return false;
|
||
}
|
||
m_strSession = makeRandStr(12);
|
||
m_pMediaSrc = pMediaSrc;
|
||
|
||
for (unsigned int i = 0; i < m_uiTrackCnt; i++) {
|
||
auto &track = m_aTrackInfo[i];
|
||
track.ssrc = pMediaSrc->getSsrc(track.trackId);
|
||
track.seq = pMediaSrc->getSeqence(track.trackId);
|
||
track.timeStamp = pMediaSrc->getTimestamp(track.trackId);
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
inline void RtspSession::sendRtpPacket(const RtpPacket::Ptr & pkt) {
|
||
//InfoL<<(int)pkt.Interleaved;
|
||
switch (m_rtpType) {
|
||
case PlayerBase::RTP_TCP: {
|
||
BufferRtp::Ptr buffer(new BufferRtp(pkt));
|
||
send(buffer);
|
||
#ifdef RTSP_SEND_RTCP
|
||
int iTrackIndex = getTrackIndexByTrackId(pkt.interleaved / 2);
|
||
RtcpCounter &counter = m_aRtcpCnt[iTrackIndex];
|
||
counter.pktCnt += 1;
|
||
counter.octCount += (pkt.length - 12);
|
||
auto &m_ticker = m_aRtcpTicker[iTrackIndex];
|
||
if (m_ticker.elapsedTime() > 5 * 1000) {
|
||
//send rtcp every 5 second
|
||
m_ticker.resetTime();
|
||
counter.timeStamp = pkt.timeStamp;
|
||
sendRTCP();
|
||
}
|
||
#endif
|
||
}
|
||
break;
|
||
case PlayerBase::RTP_UDP: {
|
||
int iTrackIndex = getTrackIndexByTrackId(pkt->interleaved / 2);
|
||
auto pSock = m_apUdpSock[iTrackIndex].lock();
|
||
if (!pSock) {
|
||
shutdown();
|
||
return;
|
||
}
|
||
auto peerAddr = m_apPeerUdpAddr[iTrackIndex];
|
||
if (!peerAddr) {
|
||
return;
|
||
}
|
||
BufferRtp::Ptr buffer(new BufferRtp(pkt,4));
|
||
m_ui64TotalBytes += buffer->size();
|
||
pSock->send(buffer,SOCKET_DEFAULE_FLAGS, peerAddr.get());
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
inline void RtspSession::onRcvPeerUdpData(int iTrackIdx, const Buffer::Ptr &pBuf, const struct sockaddr& addr) {
|
||
if(iTrackIdx % 2 == 0){
|
||
//这是rtp探测包
|
||
if(!m_bGotAllPeerUdp){
|
||
//还没有获取完整的rtp探测包
|
||
if(SockUtil::in_same_lan(get_local_ip().data(),get_peer_ip().data())){
|
||
//在内网中，客户端上报的端口号是真实的，所以我们忽略udp打洞包
|
||
m_bGotAllPeerUdp = true;
|
||
return;
|
||
}
|
||
//设置真实的客户端nat映射端口号
|
||
m_apPeerUdpAddr[iTrackIdx / 2].reset(new struct sockaddr(addr));
|
||
m_abGotPeerUdp[iTrackIdx / 2] = true;
|
||
m_bGotAllPeerUdp = true;//先假设获取到完整的rtp探测包
|
||
for (unsigned int i = 0; i < m_uiTrackCnt; i++) {
|
||
if (!m_abGotPeerUdp[i]) {
|
||
//还有track没获取到rtp探测包
|
||
m_bGotAllPeerUdp = false;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}else{
|
||
//这是rtcp心跳包，说明播放器还存活
|
||
m_ticker.resetTime();
|
||
//TraceL << "rtcp:" << (iTrackIdx-1)/2 ;
|
||
}
|
||
}
|
||
|
||
|
||
inline void RtspSession::startListenPeerUdpData() {
|
||
m_bListenPeerUdpData = true;
|
||
weak_ptr<RtspSession> weakSelf = dynamic_pointer_cast<RtspSession>(shared_from_this());
|
||
UDPServer::Instance().listenPeer(get_peer_ip().data(), this,
|
||
[weakSelf](int iTrackIdx,const Buffer::Ptr &pBuf,struct sockaddr *pPeerAddr)->bool {
|
||
auto strongSelf=weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return false;
|
||
}
|
||
struct sockaddr addr=*pPeerAddr;
|
||
strongSelf->async_first([weakSelf,pBuf,addr,iTrackIdx]() {
|
||
auto strongSelf=weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return;
|
||
}
|
||
strongSelf->onRcvPeerUdpData(iTrackIdx,pBuf,addr);
|
||
});
|
||
return true;
|
||
});
|
||
}
|
||
|
||
inline void RtspSession::initSender(const std::shared_ptr<RtspSession>& session) {
|
||
m_pSender = session->_sock;
|
||
weak_ptr<RtspSession> weakSelf = dynamic_pointer_cast<RtspSession>(shared_from_this());
|
||
session->m_onDestory = [weakSelf]() {
|
||
auto strongSelf=weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return;
|
||
}
|
||
strongSelf->m_pSender->setOnErr([weakSelf](const SockException &err) {
|
||
auto strongSelf=weakSelf.lock();
|
||
if(!strongSelf) {
|
||
return;
|
||
}
|
||
strongSelf->safeShutdown();
|
||
});
|
||
};
|
||
session->shutdown();
|
||
}
|
||
|
||
#ifdef RTSP_SEND_RTCP
|
||
inline void RtspSession::sendRTCP() {
|
||
//DebugL;
|
||
uint8_t aui8Rtcp[60] = {0};
|
||
uint8_t *pui8Rtcp_SR = aui8Rtcp + 4, *pui8Rtcp_SDES = pui8Rtcp_SR + 28;
|
||
for (uint8_t i = 0; i < m_uiTrackCnt; i++) {
|
||
auto &track = m_aTrackInfo[i];
|
||
auto &counter = m_aRtcpCnt[i];
|
||
|
||
aui8Rtcp[0] = '$';
|
||
aui8Rtcp[1] = track.trackId * 2 + 1;
|
||
aui8Rtcp[2] = 56 / 256;
|
||
aui8Rtcp[3] = 56 % 256;
|
||
|
||
pui8Rtcp_SR[0] = 0x80;
|
||
pui8Rtcp_SR[1] = 0xC8;
|
||
pui8Rtcp_SR[2] = 0x00;
|
||
pui8Rtcp_SR[3] = 0x06;
|
||
|
||
uint32_t ssrc=htonl(track.ssrc);
|
||
memcpy(&pui8Rtcp_SR[4], &ssrc, 4);
|
||
|
||
uint64_t msw;
|
||
uint64_t lsw;
|
||
struct timeval tv;
|
||
gettimeofday(&tv, NULL);
|
||
msw = tv.tv_sec + 0x83AA7E80; /* 0x83AA7E80 is the number of seconds from 1900 to 1970 */
|
||
lsw = (uint32_t) ((double) tv.tv_usec * (double) (((uint64_t) 1) << 32) * 1.0e-6);
|
||
|
||
msw = htonl(msw);
|
||
memcpy(&pui8Rtcp_SR[8], &msw, 4);
|
||
|
||
lsw = htonl(lsw);
|
||
memcpy(&pui8Rtcp_SR[12], &lsw, 4);
|
||
|
||
uint32_t rtpStamp = htonl(counter.timeStamp);
|
||
memcpy(&pui8Rtcp_SR[16], &rtpStamp, 4);
|
||
|
||
uint32_t pktCnt = htonl(counter.pktCnt);
|
||
memcpy(&pui8Rtcp_SR[20], &pktCnt, 4);
|
||
|
||
uint32_t octCount = htonl(counter.octCount);
|
||
memcpy(&pui8Rtcp_SR[24], &octCount, 4);
|
||
|
||
pui8Rtcp_SDES[0] = 0x81;
|
||
pui8Rtcp_SDES[1] = 0xCA;
|
||
pui8Rtcp_SDES[2] = 0x00;
|
||
pui8Rtcp_SDES[3] = 0x06;
|
||
|
||
memcpy(&pui8Rtcp_SDES[4], &ssrc, 4);
|
||
|
||
pui8Rtcp_SDES[8] = 0x01;
|
||
pui8Rtcp_SDES[9] = 0x0f;
|
||
memcpy(&pui8Rtcp_SDES[10], "_ZL_RtspServer_", 15);
|
||
pui8Rtcp_SDES[25] = 0x00;
|
||
send((char *) aui8Rtcp, 60);
|
||
}
|
||
}
|
||
#endif
|
||
|
||
}
|
||
/* namespace Session */
|
||
} /* namespace ZL */
|
||
|