ZLMediaKit/server/WebHook.cpp

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#include <sstream>
#include <unordered_map>
#include <mutex>
#include "System.h"
#include "jsoncpp/json.h"
#include "Util/logger.h"
#include "Util/util.h"
#include "Util/onceToken.h"
#include "Util/NoticeCenter.h"
#include "Common/config.h"
#include "Common/MediaSource.h"
#include "Http/HttpRequester.h"
#include "Network/TcpSession.h"
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#include "Rtsp/RtspSession.h"
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using namespace Json;
using namespace toolkit;
using namespace mediakit;
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//支持json或urlencoded方式传输参数
#define JSON_ARGS
#ifdef JSON_ARGS
typedef Value ArgsType;
#else
typedef HttpArgs ArgsType;
#endif
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namespace Hook {
#define HOOK_FIELD "hook."
const char kEnable[] = HOOK_FIELD"enable";
const char kTimeoutSec[] = HOOK_FIELD"timeoutSec";
const char kOnPublish[] = HOOK_FIELD"on_publish";
const char kOnPlay[] = HOOK_FIELD"on_play";
const char kOnFlowReport[] = HOOK_FIELD"on_flow_report";
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const char kOnRtspRealm[] = HOOK_FIELD"on_rtsp_realm";
const char kOnRtspAuth[] = HOOK_FIELD"on_rtsp_auth";
const char kOnStreamChanged[] = HOOK_FIELD"on_stream_changed";
const char kOnStreamNotFound[] = HOOK_FIELD"on_stream_not_found";
const char kOnRecordMp4[] = HOOK_FIELD"on_record_mp4";
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const char kAdminParams[] = HOOK_FIELD"admin_params";
onceToken token([](){
mINI::Instance()[kEnable] = false;
mINI::Instance()[kTimeoutSec] = 10;
mINI::Instance()[kOnPublish] = "http://127.0.0.1/index/hook/on_publish";
mINI::Instance()[kOnPlay] = "http://127.0.0.1/index/hook/on_play";
mINI::Instance()[kOnFlowReport] = "http://127.0.0.1/index/hook/on_flow_report";
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mINI::Instance()[kOnRtspRealm] = "http://127.0.0.1/index/hook/on_rtsp_realm";
mINI::Instance()[kOnRtspAuth] = "http://127.0.0.1/index/hook/on_rtsp_auth";
mINI::Instance()[kOnStreamChanged] = "http://127.0.0.1/index/hook/on_stream_changed";
mINI::Instance()[kOnStreamNotFound] = "http://127.0.0.1/index/hook/on_stream_not_found";
mINI::Instance()[kOnRecordMp4] = "http://127.0.0.1/index/hook/on_record_mp4";
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mINI::Instance()[kAdminParams] = "token=035c73f7-bb6b-4889-a715-d9eb2d1925cc";
},nullptr);
}//namespace Hook
static void parse_http_response(const SockException &ex,
const string &status,
const HttpClient::HttpHeader &header,
const string &strRecvBody,
const function<void(const Value &,const string &)> &fun){
if(ex){
auto errStr = StrPrinter << "[network err]:" << ex.what() << endl;
fun(Json::nullValue,errStr);
return;
}
if(status != "200"){
auto errStr = StrPrinter << "[bad http status code]:" << status << endl;
fun(Json::nullValue,errStr);
return;
}
try {
stringstream ss(strRecvBody);
Value result;
ss >> result;
if(result["code"].asInt() != 0) {
auto errStr = StrPrinter << "[json code]:" << "code=" << result["code"] << ",msg=" << result["msg"] << endl;
fun(Json::nullValue,errStr);
return;
}
fun(result,"");
}catch (std::exception &ex){
auto errStr = StrPrinter << "[parse json failed]:" << ex.what() << endl;
fun(Json::nullValue,errStr);
}
}
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string to_string(const Value &value){
return value.toStyledString();
}
string to_string(const HttpArgs &value){
return value.make();
}
const char *getContentType(const Value &value){
return "application/json";
}
const char *getContentType(const HttpArgs &value){
return "application/x-www-form-urlencoded";
}
static void do_http_hook(const string &url,const ArgsType &body,const function<void(const Value &,const string &)> &fun){
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GET_CONFIG_AND_REGISTER(float,hook_timeoutSec,Hook::kTimeoutSec);
HttpRequester::Ptr requester(new HttpRequester);
requester->setMethod("POST");
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auto bodyStr = to_string(body);
requester->setBody(bodyStr);
requester->addHeader("Content-Type",getContentType(body));
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std::shared_ptr<Ticker> pTicker(new Ticker);
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requester->startRequester(url,[url,fun,bodyStr,requester,pTicker](const SockException &ex,
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const string &status,
const HttpClient::HttpHeader &header,
const string &strRecvBody){
onceToken token(nullptr,[&](){
const_cast<HttpRequester::Ptr &>(requester).reset();
});
parse_http_response(ex,status,header,strRecvBody,[&](const Value &obj,const string &err){
if(fun){
fun(obj,err);
}
if(!err.empty()) {
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WarnL << "hook " << url << " " <<pTicker->elapsedTime() << "ms,failed" << err << ":" << bodyStr;
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}else if(pTicker->elapsedTime() > 500){
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DebugL << "hook " << url << " " <<pTicker->elapsedTime() << "ms,success:" << bodyStr;
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}
});
},hook_timeoutSec);
}
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static ArgsType make_json(const MediaInfo &args){
ArgsType body;
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body["schema"] = args._schema;
body["vhost"] = args._vhost;
body["app"] = args._app;
body["stream"] = args._streamid;
body["params"] = args._param_strs;
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return std::move(body);
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}
void installWebHook(){
GET_CONFIG_AND_REGISTER(bool,hook_enable,Hook::kEnable);
GET_CONFIG_AND_REGISTER(string,hook_publish,Hook::kOnPublish);
GET_CONFIG_AND_REGISTER(string,hook_play,Hook::kOnPlay);
GET_CONFIG_AND_REGISTER(string,hook_flowreport,Hook::kOnFlowReport);
GET_CONFIG_AND_REGISTER(string,hook_adminparams,Hook::kAdminParams);
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GET_CONFIG_AND_REGISTER(string,hook_rtsp_realm,Hook::kOnRtspRealm);
GET_CONFIG_AND_REGISTER(string,hook_rtsp_auth,Hook::kOnRtspAuth);
GET_CONFIG_AND_REGISTER(string,hook_stream_chaned,Hook::kOnStreamChanged);
GET_CONFIG_AND_REGISTER(string,hook_stream_not_found,Hook::kOnStreamNotFound);
GET_CONFIG_AND_REGISTER(string,hook_record_mp4,Hook::kOnRecordMp4);
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NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastMediaPublish,[](BroadcastMediaPublishArgs){
if(!hook_enable || args._param_strs == hook_adminparams || hook_publish.empty()){
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invoker("");
return;
}
//异步执行该hook api防止阻塞NoticeCenter
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auto body = make_json(args);
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body["ip"] = sender.get_peer_ip();
body["port"] = sender.get_peer_port();
body["id"] = sender.getIdentifier();
EventPollerPool::Instance().getExecutor()->async([body,invoker](){
//执行hook
do_http_hook(hook_publish,body,[invoker](const Value &obj,const string &err){
invoker(err);
});
});
});
NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastMediaPlayed,[](BroadcastMediaPlayedArgs){
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if(!hook_enable || args._param_strs == hook_adminparams || hook_play.empty()){
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invoker("");
return;
}
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auto body = make_json(args);
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body["ip"] = sender.get_peer_ip();
body["port"] = sender.get_peer_port();
body["id"] = sender.getIdentifier();
//异步执行该hook api防止阻塞NoticeCenter
EventPollerPool::Instance().getExecutor()->async([body,invoker](){
//执行hook
do_http_hook(hook_play,body,[invoker](const Value &obj,const string &err){
invoker(err);
});
});
});
NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastFlowReport,[](BroadcastFlowReportArgs){
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if(!hook_enable || args._param_strs == hook_adminparams || hook_flowreport.empty()){
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return;
}
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auto body = make_json(args);
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body["ip"] = sender.get_peer_ip();
body["port"] = sender.get_peer_port();
body["id"] = sender.getIdentifier();
body["totalBytes"] = (Json::UInt64)totalBytes;
body["duration"] = (Json::UInt64)totalDuration;
//流量统计事件
EventPollerPool::Instance().getExecutor()->async([body,totalBytes](){
//执行hook
do_http_hook(hook_flowreport,body, nullptr);
});
});
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static const string unAuthedRealm = "unAuthedRealm";
//监听kBroadcastOnGetRtspRealm事件决定rtsp链接是否需要鉴权(传统的rtsp鉴权方案)才能访问
NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastOnGetRtspRealm,[](BroadcastOnGetRtspRealmArgs){
if(!hook_enable || args._param_strs == hook_adminparams || hook_rtsp_realm.empty()){
//无需认证
invoker("");
return;
}
auto body = make_json(args);
body["ip"] = sender.get_peer_ip();
body["port"] = sender.get_peer_port();
body["id"] = sender.getIdentifier();
EventPollerPool::Instance().getExecutor()->async([body,invoker](){
//执行hook
do_http_hook(hook_rtsp_realm,body, [invoker](const Value &obj,const string &err){
if(!err.empty()){
//如果接口访问失败那么该rtsp流认证失败
invoker(unAuthedRealm);
return;
}
invoker(obj["realm"].asString());
});
});
});
//监听kBroadcastOnRtspAuth事件返回正确的rtsp鉴权用户密码
NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastOnRtspAuth,[](BroadcastOnRtspAuthArgs){
if(unAuthedRealm == realm || !hook_enable || hook_rtsp_auth.empty()){
//认证失败
invoker(false,makeRandStr(12));
return;
}
auto body = make_json(args);
body["ip"] = sender.get_peer_ip();
body["port"] = sender.get_peer_port();
body["id"] = sender.getIdentifier();
body["user_name"] = user_name;
body["must_no_encrypt"] = must_no_encrypt;
body["realm"] = realm;
EventPollerPool::Instance().getExecutor()->async([body,invoker](){
//执行hook
do_http_hook(hook_rtsp_auth,body, [invoker](const Value &obj,const string &err){
if(!err.empty()){
//认证失败
invoker(false,makeRandStr(12));
return;
}
invoker(obj["encrypted"].asBool(),obj["passwd"].asString());
});
});
});
//监听rtsp、rtmp源注册或注销事件
NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastMediaChanged,[](BroadcastMediaChangedArgs){
if(!hook_enable || hook_stream_chaned.empty()){
return;
}
ArgsType body;
body["regist"] = bRegist;
body["schema"] = schema;
body["vhost"] = vhost;
body["app"] = app;
body["stream"] = stream;
EventPollerPool::Instance().getExecutor()->async([body](){
//执行hook
do_http_hook(hook_stream_chaned,body, nullptr);
});
});
//监听播放失败(未找到特定的流)事件
NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastNotFoundStream,[](BroadcastNotFoundStreamArgs){
if(!hook_enable || hook_stream_not_found.empty()){
return;
}
auto body = make_json(args);
body["ip"] = sender.get_peer_ip();
body["port"] = sender.get_peer_port();
body["id"] = sender.getIdentifier();
EventPollerPool::Instance().getExecutor()->async([body](){
//执行hook
do_http_hook(hook_stream_not_found,body, nullptr);
});
});
#ifdef ENABLE_MP4V2
//录制mp4文件成功后广播
NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastRecordMP4,[](BroadcastRecordMP4Args){
if(!hook_enable || hook_record_mp4.empty()){
return;
}
ArgsType body;
body["start_time"] = (uint64_t)info.ui64StartedTime;
body["time_len"] = (uint64_t)info.ui64TimeLen;
body["file_size"] = info.ui64FileSize;
body["file_path"] = info.strFilePath;
body["file_name"] = info.strFileName;
body["folder"] = info.strFolder;
body["url"] = info.strUrl;
body["app"] = info.strAppName;
body["stream"] = info.strStreamId;
body["vhost"] = info.strVhost;
EventPollerPool::Instance().getExecutor()->async([body](){
//执行hook
do_http_hook(hook_record_mp4,body, nullptr);
});
});
#endif //ENABLE_MP4V2
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}