henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #ifndef WEBRTC_BASE_HTTPSERVER_H__ |
| 12 | #define WEBRTC_BASE_HTTPSERVER_H__ |
| 13 | |
| 14 | #include <map> |
| 15 | #include "webrtc/base/httpbase.h" |
| 16 | |
| 17 | namespace rtc { |
| 18 | |
| 19 | class AsyncSocket; |
| 20 | class HttpServer; |
| 21 | class SocketAddress; |
| 22 | |
| 23 | ////////////////////////////////////////////////////////////////////// |
| 24 | // HttpServer |
| 25 | ////////////////////////////////////////////////////////////////////// |
| 26 | |
| 27 | const int HTTP_INVALID_CONNECTION_ID = 0; |
| 28 | |
| 29 | struct HttpServerTransaction : public HttpTransaction { |
| 30 | public: |
| 31 | HttpServerTransaction(int id) : connection_id_(id) { } |
| 32 | int connection_id() const { return connection_id_; } |
| 33 | |
| 34 | private: |
| 35 | int connection_id_; |
| 36 | }; |
| 37 | |
| 38 | class HttpServer { |
| 39 | public: |
| 40 | HttpServer(); |
| 41 | virtual ~HttpServer(); |
| 42 | |
| 43 | int HandleConnection(StreamInterface* stream); |
| 44 | // Due to sigslot issues, we can't destroy some streams at an arbitrary time. |
| 45 | sigslot::signal3<HttpServer*, int, StreamInterface*> SignalConnectionClosed; |
| 46 | |
| 47 | // This signal occurs when the HTTP request headers have been received, but |
| 48 | // before the request body is written to the request document. By default, |
| 49 | // the request document is a MemoryStream. By handling this signal, the |
| 50 | // document can be overridden, in which case the third signal argument should |
| 51 | // be set to true. In the case where the request body should be ignored, |
| 52 | // the document can be set to NULL. Note that the transaction object is still |
| 53 | // owened by the HttpServer at this point. |
| 54 | sigslot::signal3<HttpServer*, HttpServerTransaction*, bool*> |
| 55 | SignalHttpRequestHeader; |
| 56 | |
| 57 | // An HTTP request has been made, and is available in the transaction object. |
| 58 | // Populate the transaction's response, and then return the object via the |
| 59 | // Respond method. Note that during this time, ownership of the transaction |
| 60 | // object is transferred, so it may be passed between threads, although |
| 61 | // respond must be called on the server's active thread. |
| 62 | sigslot::signal2<HttpServer*, HttpServerTransaction*> SignalHttpRequest; |
| 63 | void Respond(HttpServerTransaction* transaction); |
| 64 | |
| 65 | // If you want to know when a request completes, listen to this event. |
| 66 | sigslot::signal3<HttpServer*, HttpServerTransaction*, int> |
| 67 | SignalHttpRequestComplete; |
| 68 | |
| 69 | // Stop processing the connection indicated by connection_id. |
| 70 | // Unless force is true, the server will complete sending a response that is |
| 71 | // in progress. |
| 72 | void Close(int connection_id, bool force); |
| 73 | void CloseAll(bool force); |
| 74 | |
| 75 | // After calling CloseAll, this event is signalled to indicate that all |
| 76 | // outstanding connections have closed. |
| 77 | sigslot::signal1<HttpServer*> SignalCloseAllComplete; |
| 78 | |
| 79 | private: |
| 80 | class Connection : private IHttpNotify { |
| 81 | public: |
| 82 | Connection(int connection_id, HttpServer* server); |
| 83 | virtual ~Connection(); |
| 84 | |
| 85 | void BeginProcess(StreamInterface* stream); |
| 86 | StreamInterface* EndProcess(); |
| 87 | |
| 88 | void Respond(HttpServerTransaction* transaction); |
| 89 | void InitiateClose(bool force); |
| 90 | |
| 91 | // IHttpNotify Interface |
| 92 | virtual HttpError onHttpHeaderComplete(bool chunked, size_t& data_size); |
| 93 | virtual void onHttpComplete(HttpMode mode, HttpError err); |
| 94 | virtual void onHttpClosed(HttpError err); |
| 95 | |
| 96 | int connection_id_; |
| 97 | HttpServer* server_; |
| 98 | HttpBase base_; |
| 99 | HttpServerTransaction* current_; |
| 100 | bool signalling_, close_; |
| 101 | }; |
| 102 | |
| 103 | Connection* Find(int connection_id); |
| 104 | void Remove(int connection_id); |
| 105 | |
| 106 | friend class Connection; |
| 107 | typedef std::map<int,Connection*> ConnectionMap; |
| 108 | |
| 109 | ConnectionMap connections_; |
| 110 | int next_connection_id_; |
| 111 | bool closing_; |
| 112 | }; |
| 113 | |
| 114 | ////////////////////////////////////////////////////////////////////// |
| 115 | |
| 116 | class HttpListenServer : public HttpServer, public sigslot::has_slots<> { |
| 117 | public: |
| 118 | HttpListenServer(); |
| 119 | virtual ~HttpListenServer(); |
| 120 | |
| 121 | int Listen(const SocketAddress& address); |
| 122 | bool GetAddress(SocketAddress* address) const; |
| 123 | void StopListening(); |
| 124 | |
| 125 | private: |
| 126 | void OnReadEvent(AsyncSocket* socket); |
| 127 | void OnConnectionClosed(HttpServer* server, int connection_id, |
| 128 | StreamInterface* stream); |
| 129 | |
| 130 | scoped_ptr<AsyncSocket> listener_; |
| 131 | }; |
| 132 | |
| 133 | ////////////////////////////////////////////////////////////////////// |
| 134 | |
| 135 | } // namespace rtc |
| 136 | |
| 137 | #endif // WEBRTC_BASE_HTTPSERVER_H__ |