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| 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 #include <algorithm> |
| 12 |
| 13 #include "webrtc/base/httpcommon-inl.h" |
| 14 |
| 15 #include "webrtc/base/asyncsocket.h" |
| 16 #include "webrtc/base/checks.h" |
| 17 #include "webrtc/base/httpserver.h" |
| 18 #include "webrtc/base/logging.h" |
| 19 #include "webrtc/base/socketstream.h" |
| 20 #include "webrtc/base/thread.h" |
| 21 |
| 22 namespace rtc { |
| 23 |
| 24 /////////////////////////////////////////////////////////////////////////////// |
| 25 // HttpServer |
| 26 /////////////////////////////////////////////////////////////////////////////// |
| 27 |
| 28 HttpServer::HttpServer() : next_connection_id_(1), closing_(false) { |
| 29 } |
| 30 |
| 31 HttpServer::~HttpServer() { |
| 32 if (closing_) { |
| 33 LOG(LS_WARNING) << "HttpServer::CloseAll has not completed"; |
| 34 } |
| 35 for (ConnectionMap::iterator it = connections_.begin(); |
| 36 it != connections_.end(); |
| 37 ++it) { |
| 38 StreamInterface* stream = it->second->EndProcess(); |
| 39 delete stream; |
| 40 delete it->second; |
| 41 } |
| 42 } |
| 43 |
| 44 int |
| 45 HttpServer::HandleConnection(StreamInterface* stream) { |
| 46 int connection_id = next_connection_id_++; |
| 47 RTC_DCHECK(connection_id != HTTP_INVALID_CONNECTION_ID); |
| 48 Connection* connection = new Connection(connection_id, this); |
| 49 connections_.insert(ConnectionMap::value_type(connection_id, connection)); |
| 50 connection->BeginProcess(stream); |
| 51 return connection_id; |
| 52 } |
| 53 |
| 54 void |
| 55 HttpServer::Respond(HttpServerTransaction* transaction) { |
| 56 int connection_id = transaction->connection_id(); |
| 57 if (Connection* connection = Find(connection_id)) { |
| 58 connection->Respond(transaction); |
| 59 } else { |
| 60 delete transaction; |
| 61 // We may be tempted to SignalHttpComplete, but that implies that a |
| 62 // connection still exists. |
| 63 } |
| 64 } |
| 65 |
| 66 void |
| 67 HttpServer::Close(int connection_id, bool force) { |
| 68 if (Connection* connection = Find(connection_id)) { |
| 69 connection->InitiateClose(force); |
| 70 } |
| 71 } |
| 72 |
| 73 void |
| 74 HttpServer::CloseAll(bool force) { |
| 75 if (connections_.empty()) { |
| 76 SignalCloseAllComplete(this); |
| 77 return; |
| 78 } |
| 79 closing_ = true; |
| 80 std::list<Connection*> connections; |
| 81 for (ConnectionMap::const_iterator it = connections_.begin(); |
| 82 it != connections_.end(); ++it) { |
| 83 connections.push_back(it->second); |
| 84 } |
| 85 for (std::list<Connection*>::const_iterator it = connections.begin(); |
| 86 it != connections.end(); ++it) { |
| 87 (*it)->InitiateClose(force); |
| 88 } |
| 89 } |
| 90 |
| 91 HttpServer::Connection* |
| 92 HttpServer::Find(int connection_id) { |
| 93 ConnectionMap::iterator it = connections_.find(connection_id); |
| 94 if (it == connections_.end()) |
| 95 return nullptr; |
| 96 return it->second; |
| 97 } |
| 98 |
| 99 void |
| 100 HttpServer::Remove(int connection_id) { |
| 101 ConnectionMap::iterator it = connections_.find(connection_id); |
| 102 if (it == connections_.end()) { |
| 103 RTC_NOTREACHED(); |
| 104 return; |
| 105 } |
| 106 Connection* connection = it->second; |
| 107 connections_.erase(it); |
| 108 SignalConnectionClosed(this, connection_id, connection->EndProcess()); |
| 109 delete connection; |
| 110 if (closing_ && connections_.empty()) { |
| 111 closing_ = false; |
| 112 SignalCloseAllComplete(this); |
| 113 } |
| 114 } |
| 115 |
| 116 /////////////////////////////////////////////////////////////////////////////// |
| 117 // HttpServer::Connection |
| 118 /////////////////////////////////////////////////////////////////////////////// |
| 119 |
| 120 HttpServer::Connection::Connection(int connection_id, HttpServer* server) |
| 121 : connection_id_(connection_id), |
| 122 server_(server), |
| 123 current_(nullptr), |
| 124 signalling_(false), |
| 125 close_(false) {} |
| 126 |
| 127 HttpServer::Connection::~Connection() { |
| 128 // It's possible that an object hosted inside this transaction signalled |
| 129 // an event which caused the connection to close. |
| 130 Thread::Current()->Dispose(current_); |
| 131 } |
| 132 |
| 133 void |
| 134 HttpServer::Connection::BeginProcess(StreamInterface* stream) { |
| 135 base_.notify(this); |
| 136 base_.attach(stream); |
| 137 current_ = new HttpServerTransaction(connection_id_); |
| 138 if (base_.mode() != HM_CONNECT) |
| 139 base_.recv(¤t_->request); |
| 140 } |
| 141 |
| 142 StreamInterface* |
| 143 HttpServer::Connection::EndProcess() { |
| 144 base_.notify(nullptr); |
| 145 base_.abort(HE_DISCONNECTED); |
| 146 return base_.detach(); |
| 147 } |
| 148 |
| 149 void |
| 150 HttpServer::Connection::Respond(HttpServerTransaction* transaction) { |
| 151 RTC_DCHECK(current_ == nullptr); |
| 152 current_ = transaction; |
| 153 if (current_->response.begin() == current_->response.end()) { |
| 154 current_->response.set_error(HC_INTERNAL_SERVER_ERROR); |
| 155 } |
| 156 bool keep_alive = HttpShouldKeepAlive(current_->request); |
| 157 current_->response.setHeader(HH_CONNECTION, |
| 158 keep_alive ? "Keep-Alive" : "Close", |
| 159 false); |
| 160 close_ = !HttpShouldKeepAlive(current_->response); |
| 161 base_.send(¤t_->response); |
| 162 } |
| 163 |
| 164 void |
| 165 HttpServer::Connection::InitiateClose(bool force) { |
| 166 bool request_in_progress = (HM_SEND == base_.mode()) || (nullptr == current_); |
| 167 if (!signalling_ && (force || !request_in_progress)) { |
| 168 server_->Remove(connection_id_); |
| 169 } else { |
| 170 close_ = true; |
| 171 } |
| 172 } |
| 173 |
| 174 // |
| 175 // IHttpNotify Implementation |
| 176 // |
| 177 |
| 178 HttpError |
| 179 HttpServer::Connection::onHttpHeaderComplete(bool chunked, size_t& data_size) { |
| 180 if (data_size == SIZE_UNKNOWN) { |
| 181 data_size = 0; |
| 182 } |
| 183 RTC_DCHECK(current_ != nullptr); |
| 184 bool custom_document = false; |
| 185 server_->SignalHttpRequestHeader(server_, current_, &custom_document); |
| 186 if (!custom_document) { |
| 187 current_->request.document.reset(new MemoryStream); |
| 188 } |
| 189 return HE_NONE; |
| 190 } |
| 191 |
| 192 void |
| 193 HttpServer::Connection::onHttpComplete(HttpMode mode, HttpError err) { |
| 194 if (mode == HM_SEND) { |
| 195 RTC_DCHECK(current_ != nullptr); |
| 196 signalling_ = true; |
| 197 server_->SignalHttpRequestComplete(server_, current_, err); |
| 198 signalling_ = false; |
| 199 if (close_) { |
| 200 // Force a close |
| 201 err = HE_DISCONNECTED; |
| 202 } |
| 203 } |
| 204 if (err != HE_NONE) { |
| 205 server_->Remove(connection_id_); |
| 206 } else if (mode == HM_CONNECT) { |
| 207 base_.recv(¤t_->request); |
| 208 } else if (mode == HM_RECV) { |
| 209 RTC_DCHECK(current_ != nullptr); |
| 210 // TODO: do we need this? |
| 211 //request_.document_->rewind(); |
| 212 HttpServerTransaction* transaction = current_; |
| 213 current_ = nullptr; |
| 214 server_->SignalHttpRequest(server_, transaction); |
| 215 } else if (mode == HM_SEND) { |
| 216 Thread::Current()->Dispose(current_->response.document.release()); |
| 217 current_->request.clear(true); |
| 218 current_->response.clear(true); |
| 219 base_.recv(¤t_->request); |
| 220 } else { |
| 221 RTC_NOTREACHED(); |
| 222 } |
| 223 } |
| 224 |
| 225 void |
| 226 HttpServer::Connection::onHttpClosed(HttpError err) { |
| 227 server_->Remove(connection_id_); |
| 228 } |
| 229 |
| 230 /////////////////////////////////////////////////////////////////////////////// |
| 231 // HttpListenServer |
| 232 /////////////////////////////////////////////////////////////////////////////// |
| 233 |
| 234 HttpListenServer::HttpListenServer() { |
| 235 SignalConnectionClosed.connect(this, &HttpListenServer::OnConnectionClosed); |
| 236 } |
| 237 |
| 238 HttpListenServer::~HttpListenServer() { |
| 239 } |
| 240 |
| 241 int HttpListenServer::Listen(const SocketAddress& address) { |
| 242 AsyncSocket* sock = |
| 243 Thread::Current()->socketserver()->CreateAsyncSocket(address.family(), |
| 244 SOCK_STREAM); |
| 245 if (!sock) { |
| 246 return SOCKET_ERROR; |
| 247 } |
| 248 listener_.reset(sock); |
| 249 listener_->SignalReadEvent.connect(this, &HttpListenServer::OnReadEvent); |
| 250 if ((listener_->Bind(address) != SOCKET_ERROR) && |
| 251 (listener_->Listen(5) != SOCKET_ERROR)) |
| 252 return 0; |
| 253 return listener_->GetError(); |
| 254 } |
| 255 |
| 256 bool HttpListenServer::GetAddress(SocketAddress* address) const { |
| 257 if (!listener_) { |
| 258 return false; |
| 259 } |
| 260 *address = listener_->GetLocalAddress(); |
| 261 return !address->IsNil(); |
| 262 } |
| 263 |
| 264 void HttpListenServer::StopListening() { |
| 265 if (listener_) { |
| 266 listener_->Close(); |
| 267 } |
| 268 } |
| 269 |
| 270 void HttpListenServer::OnReadEvent(AsyncSocket* socket) { |
| 271 RTC_DCHECK(socket == listener_.get()); |
| 272 AsyncSocket* incoming = listener_->Accept(nullptr); |
| 273 if (incoming) { |
| 274 StreamInterface* stream = new SocketStream(incoming); |
| 275 //stream = new LoggingAdapter(stream, LS_VERBOSE, "HttpServer", false); |
| 276 HandleConnection(stream); |
| 277 } |
| 278 } |
| 279 |
| 280 void HttpListenServer::OnConnectionClosed(HttpServer* server, |
| 281 int connection_id, |
| 282 StreamInterface* stream) { |
| 283 Thread::Current()->Dispose(stream); |
| 284 } |
| 285 |
| 286 /////////////////////////////////////////////////////////////////////////////// |
| 287 |
| 288 } // namespace rtc |
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