mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-22 02:34:26 +08:00
parent
67d5c42007
commit
5f936663b4
@ -1 +1 @@
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Subproject commit b6e5af3e7ad95d87f4e45a89e36d9a8ab45209a9
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Subproject commit e4744a0a523817356f2ec995ee5a732264c31629
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@ -30,14 +30,14 @@ HttpSession::HttpSession(const Socket::Ptr &pSock) : Session(pSock) {
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HttpSession::~HttpSession() = default;
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void HttpSession::Handle_Req_HEAD(ssize_t &content_len) {
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void HttpSession::onHttpRequest_HEAD() {
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// 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
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// 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
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// 对于按需生成流的直播场景并不适用
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sendResponse(200, false);
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}
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void HttpSession::Handle_Req_OPTIONS(ssize_t &content_len) {
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void HttpSession::onHttpRequest_OPTIONS() {
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KeyValue header;
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header.emplace("Allow", "GET, POST, HEAD, OPTIONS");
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GET_CONFIG(bool, allow_cross_domains, Http::kAllowCrossDomains);
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@ -53,21 +53,22 @@ void HttpSession::Handle_Req_OPTIONS(ssize_t &content_len) {
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}
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ssize_t HttpSession::onRecvHeader(const char *header, size_t len) {
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using func_type = void (HttpSession::*)(ssize_t &);
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using func_type = void (HttpSession::*)();
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static unordered_map<string, func_type> s_func_map;
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static onceToken token([]() {
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s_func_map.emplace("GET", &HttpSession::Handle_Req_GET);
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s_func_map.emplace("DELETE", &HttpSession::Handle_Req_GET);
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s_func_map.emplace("POST", &HttpSession::Handle_Req_POST);
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s_func_map.emplace("HEAD", &HttpSession::Handle_Req_HEAD);
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s_func_map.emplace("OPTIONS", &HttpSession::Handle_Req_OPTIONS);
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s_func_map.emplace("GET", &HttpSession::onHttpRequest_GET);
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s_func_map.emplace("POST", &HttpSession::onHttpRequest_POST);
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// DELETE命令用于whip/whep用,只用于触发http api
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s_func_map.emplace("DELETE", &HttpSession::onHttpRequest_POST);
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s_func_map.emplace("HEAD", &HttpSession::onHttpRequest_HEAD);
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s_func_map.emplace("OPTIONS", &HttpSession::onHttpRequest_OPTIONS);
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});
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_parser.parse(header, len);
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CHECK(_parser.url()[0] == '/');
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urlDecode(_parser);
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string cmd = _parser.method();
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auto &cmd = _parser.method();
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auto it = s_func_map.find(cmd);
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if (it == s_func_map.end()) {
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WarnP(this) << "Http method not supported: " << cmd;
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@ -75,19 +76,84 @@ ssize_t HttpSession::onRecvHeader(const char *header, size_t len) {
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return 0;
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}
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//默认后面数据不是content而是header
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ssize_t content_len = 0;
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(this->*(it->second))(content_len);
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size_t content_len;
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auto &content_len_str = _parser["Content-Length"];
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if (content_len_str.empty()) {
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if (it->first == "POST") {
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// Http post未指定长度,我们认为是不定长的body
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WarnL << "Received http post request without content-length, consider it to be unlimited length";
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content_len = SIZE_MAX;
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} else {
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content_len = 0;
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}
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} else {
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// 已经指定长度
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content_len = atoll(content_len_str.data());
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}
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// 清空解析器节省内存
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_parser.clear();
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// 返回content长度
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return content_len;
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if (content_len == 0) {
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//// 没有body的情况,直接触发回调 ////
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(this->*(it->second))();
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_parser.clear();
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// 如果设置了_on_recv_body, 那么说明后续要处理body
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return _on_recv_body ? -1 : 0;
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}
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GET_CONFIG(size_t, maxReqSize, Http::kMaxReqSize);
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if (content_len > maxReqSize) {
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//// 不定长body或超大body ////
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if (content_len != SIZE_MAX) {
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WarnL << "Http body size is too huge: " << content_len << " > " << maxReqSize
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<< ", please set " << Http::kMaxReqSize << " in config.ini file.";
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}
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size_t received = 0;
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auto parser = std::move(_parser);
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_on_recv_body = [this, parser, received, content_len](const char *data, size_t len) mutable {
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received += len;
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onRecvUnlimitedContent(parser, data, len, content_len, received);
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if (received != content_len) {
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// 还没收满
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return true;
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}
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// 收满了
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setContentLen(0);
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return false;
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};
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// 声明后续都是body;Http body在本对象缓冲,不通过HttpRequestSplitter保存
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return -1;
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}
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//// body size明确指定且小于最大值的情况 ////
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auto body = std::make_shared<std::string>();
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// 预留一定的内存buffer,防止频繁的内存拷贝
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body->reserve(content_len);
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_on_recv_body = [this, body, content_len, it](const char *data, size_t len) mutable {
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body->append(data, len);
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if (body->size() < content_len) {
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// 未收满数据
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return true;
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}
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// 收集body完毕
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_parser.setContent(std::move(*body));
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(this->*(it->second))();
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_parser.clear();
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// 后续是header
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setContentLen(0);
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return false;
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};
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// 声明后续都是body;Http body在本对象缓冲,不通过HttpRequestSplitter保存
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return -1;
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}
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void HttpSession::onRecvContent(const char *data, size_t len) {
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if (_contentCallBack && !_contentCallBack(data, len)) {
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_contentCallBack = nullptr;
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if (_on_recv_body && !_on_recv_body(data, len)) {
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_on_recv_body = nullptr;
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}
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}
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@ -369,17 +435,13 @@ bool HttpSession::checkLiveStreamFlv(const function<void()> &cb) {
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});
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}
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void HttpSession::Handle_Req_GET(ssize_t &content_len) {
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Handle_Req_GET_l(content_len, true);
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}
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void HttpSession::Handle_Req_GET_l(ssize_t &content_len, bool sendBody) {
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void HttpSession::onHttpRequest_GET() {
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// 先看看是否为WebSocket请求
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if (checkWebSocket()) {
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content_len = -1;
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_contentCallBack = [this](const char *data, size_t len) {
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// 后续都是websocket body数据
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_on_recv_body = [this](const char *data, size_t len) {
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WebSocketSplitter::decode((uint8_t *)data, len);
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//_contentCallBack是可持续的,后面还要处理后续数据
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// _contentCallBack是可持续的,后面还要处理后续数据
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return true;
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};
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return;
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@ -658,74 +720,8 @@ std::string HttpSession::get_peer_ip() {
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return Session::get_peer_ip();
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}
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void HttpSession::Handle_Req_POST(ssize_t &content_len) {
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GET_CONFIG(size_t, maxReqSize, Http::kMaxReqSize);
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ssize_t totalContentLen = _parser["Content-Length"].empty() ? -1 : atoll(_parser["Content-Length"].data());
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if (totalContentLen == 0) {
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// content为空
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// emitHttpEvent内部会选择是否关闭连接
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emitHttpEvent(true);
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return;
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}
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if (totalContentLen > 0 && (size_t)totalContentLen < maxReqSize) {
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// 返回固定长度的content
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content_len = totalContentLen;
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auto parserCopy = _parser;
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_contentCallBack = [this, parserCopy](const char *data, size_t len) {
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// 恢复http头
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_parser = parserCopy;
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// 设置content
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_parser.setContent(string(data, len));
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// 触发http事件,emitHttpEvent内部会选择是否关闭连接
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emitHttpEvent(true);
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// 清空数据,节省内存
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_parser.clear();
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// content已经接收完毕
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return false;
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};
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} else {
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// 返回不固定长度的content或者超过长度限制的content
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content_len = -1;
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auto parserCopy = _parser;
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std::shared_ptr<size_t> recvedContentLen = std::make_shared<size_t>(0);
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bool bClose = !strcasecmp(_parser["Connection"].data(), "close");
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_contentCallBack = [this, parserCopy, totalContentLen, recvedContentLen, bClose](const char *data, size_t len) {
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*(recvedContentLen) += len;
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if (totalContentLen < 0) {
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// 不固定长度的content,源源不断接收数据
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onRecvUnlimitedContent(parserCopy, data, len, SIZE_MAX, *(recvedContentLen));
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return true;
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}
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// 长度超过限制的content
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onRecvUnlimitedContent(parserCopy, data, len, totalContentLen, *(recvedContentLen));
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if (*(recvedContentLen) < (size_t)totalContentLen) {
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// 数据还没接收完毕
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//_contentCallBack是可持续的,后面还要处理后续content数据
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return true;
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}
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// 数据接收完毕
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if (!bClose) {
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// keep-alive类型连接
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// content接收完毕,后续都是http header
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setContentLen(0);
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// content已经接收完毕
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return false;
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}
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// 连接类型是close类型,收完content就关闭连接
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shutdown(SockException(Err_shutdown, "recv http content completed"));
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// content已经接收完毕
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return false;
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};
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}
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// 有后续content数据要处理,暂时不关闭连接
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void HttpSession::onHttpRequest_POST() {
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emitHttpEvent(true);
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}
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void HttpSession::sendNotFound(bool bClose) {
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@ -101,11 +101,10 @@ protected:
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std::string get_peer_ip() override;
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private:
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void Handle_Req_GET(ssize_t &content_len);
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void Handle_Req_GET_l(ssize_t &content_len, bool sendBody);
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void Handle_Req_POST(ssize_t &content_len);
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void Handle_Req_HEAD(ssize_t &content_len);
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void Handle_Req_OPTIONS(ssize_t &content_len);
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void onHttpRequest_GET();
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void onHttpRequest_POST();
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void onHttpRequest_HEAD();
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void onHttpRequest_OPTIONS();
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bool checkLiveStream(const std::string &schema, const std::string &url_suffix, const std::function<void(const MediaSource::Ptr &src)> &cb);
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@ -137,7 +136,7 @@ private:
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TSMediaSource::RingType::RingReader::Ptr _ts_reader;
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FMP4MediaSource::RingType::RingReader::Ptr _fmp4_reader;
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//处理content数据的callback
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std::function<bool (const char *data,size_t len) > _contentCallBack;
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std::function<bool (const char *data,size_t len) > _on_recv_body;
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};
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using HttpsSession = toolkit::SessionWithSSL<HttpSession>;
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