格式化HttpSession.cpp代码

This commit is contained in:
xia-chu 2023-06-10 09:45:46 +08:00 committed by 夏楚
parent 7e1078bbcc
commit fff53cf0e2

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@ -24,16 +24,16 @@ using namespace toolkit;
namespace mediakit {
HttpSession::HttpSession(const Socket::Ptr &pSock) : Session(pSock) {
GET_CONFIG(uint32_t,keep_alive_sec,Http::kKeepAliveSecond);
GET_CONFIG(uint32_t, keep_alive_sec, Http::kKeepAliveSecond);
pSock->setSendTimeOutSecond(keep_alive_sec);
}
HttpSession::~HttpSession() = default;
void HttpSession::Handle_Req_HEAD(ssize_t &content_len){
//暂时全部返回200 OK因为HTTP GET存在按需生成流的操作所以不能按照HTTP GET的流程返回
//如果直接返回404那么又会导致按需生成流的逻辑失效所以HTTP HEAD在静态文件或者已存在资源时才有效
//对于按需生成流的直播场景并不适用
void HttpSession::Handle_Req_HEAD(ssize_t &content_len) {
// 暂时全部返回200 OK因为HTTP GET存在按需生成流的操作所以不能按照HTTP GET的流程返回
// 如果直接返回404那么又会导致按需生成流的逻辑失效所以HTTP HEAD在静态文件或者已存在资源时才有效
// 对于按需生成流的直播场景并不适用
sendResponse(200, false);
}
@ -52,16 +52,16 @@ void HttpSession::Handle_Req_OPTIONS(ssize_t &content_len) {
sendResponse(200, true, nullptr, header);
}
ssize_t HttpSession::onRecvHeader(const char *header,size_t len) {
typedef void (HttpSession::*HttpCMDHandle)(ssize_t &);
static unordered_map<string, HttpCMDHandle> s_func_map;
ssize_t HttpSession::onRecvHeader(const char *header, size_t len) {
using func_type = void (HttpSession::*)(ssize_t &);
static unordered_map<string, func_type> s_func_map;
static onceToken token([]() {
s_func_map.emplace("GET",&HttpSession::Handle_Req_GET);
s_func_map.emplace("DELETE",&HttpSession::Handle_Req_GET);
s_func_map.emplace("POST",&HttpSession::Handle_Req_POST);
s_func_map.emplace("HEAD",&HttpSession::Handle_Req_HEAD);
s_func_map.emplace("OPTIONS",&HttpSession::Handle_Req_OPTIONS);
}, nullptr);
s_func_map.emplace("GET", &HttpSession::Handle_Req_GET);
s_func_map.emplace("DELETE", &HttpSession::Handle_Req_GET);
s_func_map.emplace("POST", &HttpSession::Handle_Req_POST);
s_func_map.emplace("HEAD", &HttpSession::Handle_Req_HEAD);
s_func_map.emplace("OPTIONS", &HttpSession::Handle_Req_OPTIONS);
});
_parser.Parse(header);
CHECK(_parser.Url()[0] == '/');
@ -75,60 +75,54 @@ ssize_t HttpSession::onRecvHeader(const char *header,size_t len) {
return 0;
}
//跨域
// 跨域
_origin = _parser["Origin"];
//默认后面数据不是content而是header
ssize_t content_len = 0;
(this->*(it->second))(content_len);
//清空解析器节省内存
// 清空解析器节省内存
_parser.Clear();
//返回content长度
// 返回content长度
return content_len;
}
void HttpSession::onRecvContent(const char *data,size_t len) {
if(_contentCallBack){
if(!_contentCallBack(data,len)){
void HttpSession::onRecvContent(const char *data, size_t len) {
if (_contentCallBack && !_contentCallBack(data, len)) {
_contentCallBack = nullptr;
}
}
}
void HttpSession::onRecv(const Buffer::Ptr &pBuf) {
_ticker.resetTime();
input(pBuf->data(),pBuf->size());
input(pBuf->data(), pBuf->size());
}
void HttpSession::onError(const SockException& err) {
void HttpSession::onError(const SockException &err) {
if (_is_live_stream) {
//flv/ts播放器
// flv/ts播放器
uint64_t duration = _ticker.createdTime() / 1000;
WarnP(this) << "FLV/TS/FMP4播放器("
<< _mediaInfo.shortUrl()
<< ")断开:" << err
<< ",耗时(s):" << duration;
WarnP(this) << "FLV/TS/FMP4播放器(" << _mediaInfo.shortUrl() << ")断开:" << err << ",耗时(s):" << duration;
GET_CONFIG(uint32_t, iFlowThreshold, General::kFlowThreshold);
if (_total_bytes_usage >= iFlowThreshold * 1024) {
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport, _mediaInfo, _total_bytes_usage,
duration, true, static_cast<SockInfo &>(*this));
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport, _mediaInfo, _total_bytes_usage, duration, true, static_cast<SockInfo &>(*this));
}
return;
}
}
void HttpSession::onManager() {
GET_CONFIG(uint32_t,keepAliveSec,Http::kKeepAliveSecond);
GET_CONFIG(uint32_t, keepAliveSec, Http::kKeepAliveSecond);
if(_ticker.elapsedTime() > keepAliveSec * 1000){
//1分钟超时
shutdown(SockException(Err_timeout,"session timeout"));
if (_ticker.elapsedTime() > keepAliveSec * 1000) {
// 1分钟超时
shutdown(SockException(Err_timeout, "session timeout"));
}
}
bool HttpSession::checkWebSocket(){
bool HttpSession::checkWebSocket() {
auto Sec_WebSocket_Key = _parser["Sec-WebSocket-Key"];
if (Sec_WebSocket_Key.empty()) {
return false;
@ -154,25 +148,25 @@ bool HttpSession::checkWebSocket(){
sendResponse(101, false, nullptr, headerOut, nullptr, true);
};
//判断是否为websocket-flv
// 判断是否为websocket-flv
if (checkLiveStreamFlv(res_cb_flv)) {
//这里是websocket-flv直播请求
// 这里是websocket-flv直播请求
return true;
}
//判断是否为websocket-ts
// 判断是否为websocket-ts
if (checkLiveStreamTS(res_cb)) {
//这里是websocket-ts直播请求
// 这里是websocket-ts直播请求
return true;
}
//判断是否为websocket-fmp4
// 判断是否为websocket-fmp4
if (checkLiveStreamFMP4(res_cb)) {
//这里是websocket-fmp4直播请求
// 这里是websocket-fmp4直播请求
return true;
}
//这是普通的websocket连接
// 这是普通的websocket连接
if (!onWebSocketConnect(_parser)) {
sendResponse(501, true, nullptr, headerOut);
return true;
@ -181,7 +175,7 @@ bool HttpSession::checkWebSocket(){
return true;
}
bool HttpSession::checkLiveStream(const string &schema, const string &url_suffix, const function<void(const MediaSource::Ptr &src)> &cb){
bool HttpSession::checkLiveStream(const string &schema, const string &url_suffix, const function<void(const MediaSource::Ptr &src)> &cb) {
std::string url = _parser.Url();
auto it = _parser.getUrlArgs().find("schema");
if (it != _parser.getUrlArgs().end()) {
@ -192,57 +186,57 @@ bool HttpSession::checkLiveStream(const string &schema, const string &url_suffi
} else {
auto prefix_size = url_suffix.size();
if (url.size() < prefix_size || strcasecmp(url.data() + (url.size() - prefix_size), url_suffix.data())) {
//未找到后缀
// 未找到后缀
return false;
}
// url去除特殊后缀
url.resize(url.size() - prefix_size);
}
//带参数的url
// 带参数的url
if (!_parser.Params().empty()) {
url += "?";
url += _parser.Params();
}
//解析带上协议+参数完整的url
// 解析带上协议+参数完整的url
_mediaInfo.parse(schema + "://" + _parser["Host"] + url);
if (_mediaInfo.app.empty() || _mediaInfo.stream.empty()) {
//url不合法
// url不合法
return false;
}
bool close_flag = !strcasecmp(_parser["Connection"].data(), "close");
weak_ptr<HttpSession> weak_self = static_pointer_cast<HttpSession>(shared_from_this());
//鉴权结果回调
// 鉴权结果回调
auto onRes = [cb, weak_self, close_flag](const string &err) {
auto strong_self = weak_self.lock();
if (!strong_self) {
//本对象已经销毁
// 本对象已经销毁
return;
}
if (!err.empty()) {
//播放鉴权失败
// 播放鉴权失败
strong_self->sendResponse(401, close_flag, nullptr, KeyValue(), std::make_shared<HttpStringBody>(err));
return;
}
//异步查找直播流
// 异步查找直播流
MediaSource::findAsync(strong_self->_mediaInfo, strong_self, [weak_self, close_flag, cb](const MediaSource::Ptr &src) {
auto strong_self = weak_self.lock();
if (!strong_self) {
//本对象已经销毁
// 本对象已经销毁
return;
}
if (!src) {
//未找到该流
// 未找到该流
strong_self->sendNotFound(close_flag);
} else {
strong_self->_is_live_stream = true;
//触发回调
// 触发回调
cb(src);
}
});
@ -256,26 +250,26 @@ bool HttpSession::checkLiveStream(const string &schema, const string &url_suffi
auto flag = NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaPlayed, _mediaInfo, invoker, static_cast<SockInfo &>(*this));
if (!flag) {
//该事件无人监听,默认不鉴权
// 该事件无人监听,默认不鉴权
onRes("");
}
return true;
}
//http-fmp4 链接格式:http://vhost-url:port/app/streamid.live.mp4?key1=value1&key2=value2
bool HttpSession::checkLiveStreamFMP4(const function<void()> &cb){
// http-fmp4 链接格式:http://vhost-url:port/app/streamid.live.mp4?key1=value1&key2=value2
bool HttpSession::checkLiveStreamFMP4(const function<void()> &cb) {
return checkLiveStream(FMP4_SCHEMA, ".live.mp4", [this, cb](const MediaSource::Ptr &src) {
auto fmp4_src = dynamic_pointer_cast<FMP4MediaSource>(src);
assert(fmp4_src);
if (!cb) {
//找到源发送http头负载后续发送
// 找到源发送http头负载后续发送
sendResponse(200, false, HttpFileManager::getContentType(".mp4").data(), KeyValue(), nullptr, true);
} else {
//自定义发送http头
// 自定义发送http头
cb();
}
//直播牺牲延时提升发送性能
// 直播牺牲延时提升发送性能
setSocketFlags();
onWrite(std::make_shared<BufferString>(fmp4_src->getInitSegment()), true);
weak_ptr<HttpSession> weak_self = static_pointer_cast<HttpSession>(shared_from_this());
@ -285,7 +279,7 @@ bool HttpSession::checkLiveStreamFMP4(const function<void()> &cb){
_fmp4_reader->setDetachCB([weak_self]() {
auto strong_self = weak_self.lock();
if (!strong_self) {
//本对象已经销毁
// 本对象已经销毁
return;
}
strong_self->shutdown(SockException(Err_shutdown, "fmp4 ring buffer detached"));
@ -293,85 +287,80 @@ bool HttpSession::checkLiveStreamFMP4(const function<void()> &cb){
_fmp4_reader->setReadCB([weak_self](const FMP4MediaSource::RingDataType &fmp4_list) {
auto strong_self = weak_self.lock();
if (!strong_self) {
//本对象已经销毁
// 本对象已经销毁
return;
}
size_t i = 0;
auto size = fmp4_list->size();
fmp4_list->for_each([&](const FMP4Packet::Ptr &ts) {
strong_self->onWrite(ts, ++i == size);
});
fmp4_list->for_each([&](const FMP4Packet::Ptr &ts) { strong_self->onWrite(ts, ++i == size); });
});
});
}
//http-ts 链接格式:http://vhost-url:port/app/streamid.live.ts?key1=value1&key2=value2
bool HttpSession::checkLiveStreamTS(const function<void()> &cb){
// http-ts 链接格式:http://vhost-url:port/app/streamid.live.ts?key1=value1&key2=value2
bool HttpSession::checkLiveStreamTS(const function<void()> &cb) {
return checkLiveStream(TS_SCHEMA, ".live.ts", [this, cb](const MediaSource::Ptr &src) {
auto ts_src = dynamic_pointer_cast<TSMediaSource>(src);
assert(ts_src);
if (!cb) {
//找到源发送http头负载后续发送
// 找到源发送http头负载后续发送
sendResponse(200, false, HttpFileManager::getContentType(".ts").data(), KeyValue(), nullptr, true);
} else {
//自定义发送http头
// 自定义发送http头
cb();
}
//直播牺牲延时提升发送性能
// 直播牺牲延时提升发送性能
setSocketFlags();
weak_ptr<HttpSession> weak_self = static_pointer_cast<HttpSession>(shared_from_this());
ts_src->pause(false);
_ts_reader = ts_src->getRing()->attach(getPoller());
_ts_reader->setGetInfoCB([weak_self]() { return weak_self.lock(); });
_ts_reader->setDetachCB([weak_self](){
_ts_reader->setDetachCB([weak_self]() {
auto strong_self = weak_self.lock();
if (!strong_self) {
//本对象已经销毁
// 本对象已经销毁
return;
}
strong_self->shutdown(SockException(Err_shutdown,"ts ring buffer detached"));
strong_self->shutdown(SockException(Err_shutdown, "ts ring buffer detached"));
});
_ts_reader->setReadCB([weak_self](const TSMediaSource::RingDataType &ts_list) {
auto strong_self = weak_self.lock();
if (!strong_self) {
//本对象已经销毁
// 本对象已经销毁
return;
}
size_t i = 0;
auto size = ts_list->size();
ts_list->for_each([&](const TSPacket::Ptr &ts) {
strong_self->onWrite(ts, ++i == size);
});
ts_list->for_each([&](const TSPacket::Ptr &ts) { strong_self->onWrite(ts, ++i == size); });
});
});
}
//http-flv 链接格式:http://vhost-url:port/app/streamid.live.flv?key1=value1&key2=value2
bool HttpSession::checkLiveStreamFlv(const function<void()> &cb){
// http-flv 链接格式:http://vhost-url:port/app/streamid.live.flv?key1=value1&key2=value2
bool HttpSession::checkLiveStreamFlv(const function<void()> &cb) {
auto start_pts = atoll(_parser.getUrlArgs()["starPts"].data());
return checkLiveStream(RTMP_SCHEMA, ".live.flv", [this, cb, start_pts](const MediaSource::Ptr &src) {
auto rtmp_src = dynamic_pointer_cast<RtmpMediaSource>(src);
assert(rtmp_src);
if (!cb) {
//找到源发送http头负载后续发送
// 找到源发送http头负载后续发送
KeyValue headerOut;
headerOut["Cache-Control"] = "no-store";
sendResponse(200, false, HttpFileManager::getContentType(".flv").data(), headerOut, nullptr, true);
} else {
//自定义发送http头
// 自定义发送http头
cb();
}
//直播牺牲延时提升发送性能
// 直播牺牲延时提升发送性能
setSocketFlags();
//非H264/AAC时打印警告日志防止用户提无效问题
// 非H264/AAC时打印警告日志防止用户提无效问题
auto tracks = src->getTracks(false);
for (auto &track : tracks) {
switch (track->getCodecId()) {
case CodecH264:
case CodecAAC:
break;
case CodecAAC: break;
default: {
WarnP(this) << "flv播放器一般只支持H264和AAC编码,该编码格式可能不被播放器支持:" << track->getCodecName();
break;
@ -388,11 +377,11 @@ void HttpSession::Handle_Req_GET(ssize_t &content_len) {
}
void HttpSession::Handle_Req_GET_l(ssize_t &content_len, bool sendBody) {
//先看看是否为WebSocket请求
// 先看看是否为WebSocket请求
if (checkWebSocket()) {
content_len = -1;
_contentCallBack = [this](const char *data, size_t len) {
WebSocketSplitter::decode((uint8_t *) data, len);
WebSocketSplitter::decode((uint8_t *)data, len);
//_contentCallBack是可持续的后面还要处理后续数据
return true;
};
@ -400,26 +389,26 @@ void HttpSession::Handle_Req_GET_l(ssize_t &content_len, bool sendBody) {
}
if (emitHttpEvent(false)) {
//拦截http api事件
// 拦截http api事件
return;
}
if (checkLiveStreamFlv()) {
//拦截http-flv播放器
// 拦截http-flv播放器
return;
}
if (checkLiveStreamTS()) {
//拦截http-ts播放器
// 拦截http-ts播放器
return;
}
if (checkLiveStreamFMP4()) {
//拦截http-fmp4播放器
// 拦截http-fmp4播放器
return;
}
bool bClose = !strcasecmp(_parser["Connection"].data(),"close");
bool bClose = !strcasecmp(_parser["Connection"].data(), "close");
weak_ptr<HttpSession> weak_self = static_pointer_cast<HttpSession>(shared_from_this());
HttpFileManager::onAccessPath(*this, _parser, [weak_self, bClose](int code, const string &content_type,
const StrCaseMap &responseHeader, const HttpBody::Ptr &body) {
@ -468,7 +457,7 @@ public:
static bool onSocketFlushed(const AsyncSenderData::Ptr &data) {
if (data->_read_complete) {
if (data->_close_when_complete) {
//发送完毕需要关闭socket
// 发送完毕需要关闭socket
shutdown(data->_session.lock());
}
return false;
@ -478,13 +467,13 @@ public:
data->_body->readDataAsync(sendBufSize, [data](const Buffer::Ptr &sendBuf) {
auto session = data->_session.lock();
if (!session) {
//本对象已经销毁
// 本对象已经销毁
return;
}
session->async([data, sendBuf]() {
auto session = data->_session.lock();
if (!session) {
//本对象已经销毁
// 本对象已经销毁
return;
}
onRequestData(data, session, sendBuf);
@ -497,14 +486,14 @@ private:
static void onRequestData(const AsyncSenderData::Ptr &data, const std::shared_ptr<HttpSession> &session, const Buffer::Ptr &sendBuf) {
session->_ticker.resetTime();
if (sendBuf && session->send(sendBuf) != -1) {
//文件还未读完,还需要继续发送
// 文件还未读完,还需要继续发送
if (!session->isSocketBusy()) {
//socket还可写继续请求数据
// socket还可写继续请求数据
onSocketFlushed(data);
}
return;
}
//文件写完了
// 文件写完了
data->_read_complete = true;
if (!session->isSocketBusy() && data->_close_when_complete) {
shutdown(session);
@ -512,7 +501,7 @@ private:
}
static void shutdown(const std::shared_ptr<HttpSession> &session) {
if(session){
if (session) {
session->shutdown(SockException(Err_shutdown, StrPrinter << "close connection after send http body completed."));
}
}
@ -532,14 +521,14 @@ void HttpSession::sendResponse(int code,
const char *pcContentType,
const HttpSession::KeyValue &header,
const HttpBody::Ptr &body,
bool no_content_length ){
GET_CONFIG(string,charSet,Http::kCharSet);
GET_CONFIG(uint32_t,keepAliveSec,Http::kKeepAliveSecond);
bool no_content_length) {
GET_CONFIG(string, charSet, Http::kCharSet);
GET_CONFIG(uint32_t, keepAliveSec, Http::kKeepAliveSecond);
//body默认为空
// body默认为空
int64_t size = 0;
if (body && body->remainSize()) {
//有body获取body大小
// 有body获取body大小
size = body->remainSize();
}
@ -547,7 +536,7 @@ void HttpSession::sendResponse(int code,
// http-flv直播是Keep-Alive类型
bClose = false;
} else if ((size_t)size >= SIZE_MAX || size < 0) {
//不固定长度的body那么发送完body后应该关闭socket以便浏览器做下载完毕的判断
// 不固定长度的body那么发送完body后应该关闭socket以便浏览器做下载完毕的判断
bClose = true;
}
@ -563,30 +552,30 @@ void HttpSession::sendResponse(int code,
}
if (!_origin.empty()) {
//设置跨域
// 设置跨域
headerOut.emplace(kAccessControlAllowOrigin, _origin);
headerOut.emplace(kAccessControlAllowCredentials, "true");
}
if (!no_content_length && size >= 0 && (size_t)size < SIZE_MAX) {
//文件长度为固定值,且不是http-flv强制设置Content-Length
// 文件长度为固定值,且不是http-flv强制设置Content-Length
headerOut[kContentLength] = to_string(size);
}
if (size && !pcContentType) {
//有body时设置缺省类型
// 有body时设置缺省类型
pcContentType = "text/plain";
}
if ((size || no_content_length) && pcContentType) {
//有body时设置文件类型
// 有body时设置文件类型
string strContentType = pcContentType;
strContentType += "; charset=";
strContentType += charSet;
headerOut.emplace(kContentType, std::move(strContentType));
}
//发送http头
// 发送http头
string str;
str.reserve(256);
str += "HTTP/1.1 ";
@ -605,9 +594,9 @@ void HttpSession::sendResponse(int code,
_ticker.resetTime();
if (!size) {
//没有body
// 没有body
if (bClose) {
shutdown(SockException(Err_shutdown,StrPrinter << "close connection after send http header completed with status code:" << code));
shutdown(SockException(Err_shutdown, StrPrinter << "close connection after send http header completed with status code:" << code));
}
return;
}
@ -622,20 +611,20 @@ void HttpSession::sendResponse(int code,
GET_CONFIG(uint32_t, sendBufSize, Http::kSendBufSize);
if (body->remainSize() > sendBufSize) {
//文件下载提升发送性能
// 文件下载提升发送性能
setSocketFlags();
}
//发送http body
// 发送http body
AsyncSenderData::Ptr data = std::make_shared<AsyncSenderData>(static_pointer_cast<HttpSession>(shared_from_this()), body, bClose);
getSock()->setOnFlush([data]() { return AsyncSender::onSocketFlushed(data); });
AsyncSender::onSocketFlushed(data);
}
string HttpSession::urlDecode(const string &str){
string HttpSession::urlDecode(const string &str) {
auto ret = strCoding::UrlDecode(str);
#ifdef _WIN32
GET_CONFIG(string,charSet,Http::kCharSet);
GET_CONFIG(string, charSet, Http::kCharSet);
bool isGb2312 = !strcasecmp(charSet.data(), "gb2312");
if (isGb2312) {
ret = strCoding::UTF8ToGB2312(ret);
@ -644,117 +633,117 @@ string HttpSession::urlDecode(const string &str){
return ret;
}
void HttpSession::urlDecode(Parser &parser){
void HttpSession::urlDecode(Parser &parser) {
parser.setUrl(urlDecode(parser.Url()));
for(auto &pr : _parser.getUrlArgs()){
for (auto &pr : _parser.getUrlArgs()) {
const_cast<string &>(pr.second) = urlDecode(pr.second);
}
}
bool HttpSession::emitHttpEvent(bool doInvoke){
bool bClose = !strcasecmp(_parser["Connection"].data(),"close");
bool HttpSession::emitHttpEvent(bool doInvoke) {
bool bClose = !strcasecmp(_parser["Connection"].data(), "close");
/////////////////////异步回复Invoker///////////////////////////////
weak_ptr<HttpSession> weak_self = static_pointer_cast<HttpSession>(shared_from_this());
HttpResponseInvoker invoker = [weak_self,bClose](int code, const KeyValue &headerOut, const HttpBody::Ptr &body){
HttpResponseInvoker invoker = [weak_self, bClose](int code, const KeyValue &headerOut, const HttpBody::Ptr &body) {
auto strong_self = weak_self.lock();
if(!strong_self) {
if (!strong_self) {
return;
}
strong_self->async([weak_self, bClose, code, headerOut, body]() {
auto strong_self = weak_self.lock();
if (!strong_self) {
//本对象已经销毁
// 本对象已经销毁
return;
}
strong_self->sendResponse(code, bClose, nullptr, headerOut, body);
});
};
///////////////////广播HTTP事件///////////////////////////
bool consumed = false;//该事件是否被消费
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpRequest,_parser,invoker,consumed,static_cast<SockInfo &>(*this));
if(!consumed && doInvoke){
//该事件无人消费所以返回404
invoker(404,KeyValue(), HttpBody::Ptr());
bool consumed = false; // 该事件是否被消费
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpRequest, _parser, invoker, consumed, static_cast<SockInfo &>(*this));
if (!consumed && doInvoke) {
// 该事件无人消费所以返回404
invoker(404, KeyValue(), HttpBody::Ptr());
}
return consumed;
}
std::string HttpSession::get_peer_ip() {
GET_CONFIG(string, forwarded_ip_header, Http::kForwardedIpHeader);
if(!forwarded_ip_header.empty() && !_parser.getHeader()[forwarded_ip_header].empty()){
if (!forwarded_ip_header.empty() && !_parser.getHeader()[forwarded_ip_header].empty()) {
return _parser.getHeader()[forwarded_ip_header];
}
return Session::get_peer_ip();
}
void HttpSession::Handle_Req_POST(ssize_t &content_len) {
GET_CONFIG(size_t,maxReqSize,Http::kMaxReqSize);
GET_CONFIG(size_t, maxReqSize, Http::kMaxReqSize);
ssize_t totalContentLen = _parser["Content-Length"].empty() ? -1 : atoll(_parser["Content-Length"].data());
if(totalContentLen == 0){
//content为空
//emitHttpEvent内部会选择是否关闭连接
if (totalContentLen == 0) {
// content为空
// emitHttpEvent内部会选择是否关闭连接
emitHttpEvent(true);
return;
}
if(totalContentLen > 0 && (size_t)totalContentLen < maxReqSize ){
//返回固定长度的content
if (totalContentLen > 0 && (size_t)totalContentLen < maxReqSize) {
// 返回固定长度的content
content_len = totalContentLen;
auto parserCopy = _parser;
_contentCallBack = [this,parserCopy](const char *data,size_t len){
//恢复http头
_contentCallBack = [this, parserCopy](const char *data, size_t len) {
// 恢复http头
_parser = parserCopy;
//设置content
_parser.setContent(string(data,len));
//触发http事件emitHttpEvent内部会选择是否关闭连接
// 设置content
_parser.setContent(string(data, len));
// 触发http事件emitHttpEvent内部会选择是否关闭连接
emitHttpEvent(true);
//清空数据,节省内存
// 清空数据,节省内存
_parser.Clear();
//content已经接收完毕
// content已经接收完毕
return false;
};
}else{
//返回不固定长度的content或者超过长度限制的content
} else {
// 返回不固定长度的content或者超过长度限制的content
content_len = -1;
auto parserCopy = _parser;
std::shared_ptr<size_t> recvedContentLen = std::make_shared<size_t>(0);
bool bClose = !strcasecmp(_parser["Connection"].data(),"close");
bool bClose = !strcasecmp(_parser["Connection"].data(), "close");
_contentCallBack = [this,parserCopy,totalContentLen,recvedContentLen,bClose](const char *data,size_t len){
_contentCallBack = [this, parserCopy, totalContentLen, recvedContentLen, bClose](const char *data, size_t len) {
*(recvedContentLen) += len;
if (totalContentLen < 0) {
//不固定长度的content,源源不断接收数据
// 不固定长度的content,源源不断接收数据
onRecvUnlimitedContent(parserCopy, data, len, SIZE_MAX, *(recvedContentLen));
return true;
}
//长度超过限制的content
onRecvUnlimitedContent(parserCopy,data,len,totalContentLen,*(recvedContentLen));
// 长度超过限制的content
onRecvUnlimitedContent(parserCopy, data, len, totalContentLen, *(recvedContentLen));
if(*(recvedContentLen) < (size_t)totalContentLen){
//数据还没接收完毕
if (*(recvedContentLen) < (size_t)totalContentLen) {
// 数据还没接收完毕
//_contentCallBack是可持续的后面还要处理后续content数据
return true;
}
//数据接收完毕
if(!bClose){
//keep-alive类型连接
//content接收完毕后续都是http header
// 数据接收完毕
if (!bClose) {
// keep-alive类型连接
// content接收完毕后续都是http header
setContentLen(0);
//content已经接收完毕
// content已经接收完毕
return false;
}
//连接类型是close类型收完content就关闭连接
shutdown(SockException(Err_shutdown,"recv http content completed"));
//content已经接收完毕
return false ;
// 连接类型是close类型收完content就关闭连接
shutdown(SockException(Err_shutdown, "recv http content completed"));
// content已经接收完毕
return false;
};
}
//有后续content数据要处理,暂时不关闭连接
// 有后续content数据要处理,暂时不关闭连接
}
void HttpSession::sendNotFound(bool bClose) {
@ -762,19 +751,19 @@ void HttpSession::sendNotFound(bool bClose) {
sendResponse(404, bClose, "text/html", KeyValue(), std::make_shared<HttpStringBody>(notFound));
}
void HttpSession::setSocketFlags(){
void HttpSession::setSocketFlags() {
GET_CONFIG(int, mergeWriteMS, General::kMergeWriteMS);
if(mergeWriteMS > 0) {
//推流模式下关闭TCP_NODELAY会增加推流端的延时但是服务器性能将提高
if (mergeWriteMS > 0) {
// 推流模式下关闭TCP_NODELAY会增加推流端的延时但是服务器性能将提高
SockUtil::setNoDelay(getSock()->rawFD(), false);
//播放模式下开启MSG_MORE会增加延时但是能提高发送性能
// 播放模式下开启MSG_MORE会增加延时但是能提高发送性能
setSendFlags(SOCKET_DEFAULE_FLAGS | FLAG_MORE);
}
}
void HttpSession::onWrite(const Buffer::Ptr &buffer, bool flush) {
if(flush){
//需要flush那么一次刷新缓存
if (flush) {
// 需要flush那么一次刷新缓存
HttpSession::setSendFlushFlag(true);
}
@ -792,18 +781,18 @@ void HttpSession::onWrite(const Buffer::Ptr &buffer, bool flush) {
}
if (flush) {
//本次刷新缓存后,下次不用刷新缓存
// 本次刷新缓存后,下次不用刷新缓存
HttpSession::setSendFlushFlag(false);
}
}
void HttpSession::onWebSocketEncodeData(Buffer::Ptr buffer){
void HttpSession::onWebSocketEncodeData(Buffer::Ptr buffer) {
_total_bytes_usage += buffer->size();
send(std::move(buffer));
}
void HttpSession::onWebSocketDecodeComplete(const WebSocketHeader &header_in){
WebSocketHeader& header = const_cast<WebSocketHeader&>(header_in);
void HttpSession::onWebSocketDecodeComplete(const WebSocketHeader &header_in) {
WebSocketHeader &header = const_cast<WebSocketHeader &>(header_in);
header._mask_flag = false;
switch (header._opcode) {
@ -813,15 +802,15 @@ void HttpSession::onWebSocketDecodeComplete(const WebSocketHeader &header_in){
break;
}
default : break;
default: break;
}
}
void HttpSession::onDetach() {
shutdown(SockException(Err_shutdown,"rtmp ring buffer detached"));
shutdown(SockException(Err_shutdown, "rtmp ring buffer detached"));
}
std::shared_ptr<FlvMuxer> HttpSession::getSharedPtr(){
std::shared_ptr<FlvMuxer> HttpSession::getSharedPtr() {
return dynamic_pointer_cast<FlvMuxer>(shared_from_this());
}