henrike@webrtc.org | 47be73b | 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 | #include <algorithm> |
| 12 | |
| 13 | #include "webrtc/base/httpcommon-inl.h" |
| 14 | |
| 15 | #include "webrtc/base/asyncsocket.h" |
| 16 | #include "webrtc/base/common.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 | ASSERT(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 NULL; |
| 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 | ASSERT(false); |
| 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), server_(server), |
| 122 | current_(NULL), signalling_(false), close_(false) { |
| 123 | } |
| 124 | |
| 125 | HttpServer::Connection::~Connection() { |
| 126 | // It's possible that an object hosted inside this transaction signalled |
| 127 | // an event which caused the connection to close. |
| 128 | Thread::Current()->Dispose(current_); |
| 129 | } |
| 130 | |
| 131 | void |
| 132 | HttpServer::Connection::BeginProcess(StreamInterface* stream) { |
| 133 | base_.notify(this); |
| 134 | base_.attach(stream); |
| 135 | current_ = new HttpServerTransaction(connection_id_); |
| 136 | if (base_.mode() != HM_CONNECT) |
| 137 | base_.recv(¤t_->request); |
| 138 | } |
| 139 | |
| 140 | StreamInterface* |
| 141 | HttpServer::Connection::EndProcess() { |
| 142 | base_.notify(NULL); |
| 143 | base_.abort(HE_DISCONNECTED); |
| 144 | return base_.detach(); |
| 145 | } |
| 146 | |
| 147 | void |
| 148 | HttpServer::Connection::Respond(HttpServerTransaction* transaction) { |
| 149 | ASSERT(current_ == NULL); |
| 150 | current_ = transaction; |
| 151 | if (current_->response.begin() == current_->response.end()) { |
| 152 | current_->response.set_error(HC_INTERNAL_SERVER_ERROR); |
| 153 | } |
| 154 | bool keep_alive = HttpShouldKeepAlive(current_->request); |
| 155 | current_->response.setHeader(HH_CONNECTION, |
| 156 | keep_alive ? "Keep-Alive" : "Close", |
| 157 | false); |
| 158 | close_ = !HttpShouldKeepAlive(current_->response); |
| 159 | base_.send(¤t_->response); |
| 160 | } |
| 161 | |
| 162 | void |
| 163 | HttpServer::Connection::InitiateClose(bool force) { |
| 164 | bool request_in_progress = (HM_SEND == base_.mode()) || (NULL == current_); |
| 165 | if (!signalling_ && (force || !request_in_progress)) { |
| 166 | server_->Remove(connection_id_); |
| 167 | } else { |
| 168 | close_ = true; |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | // |
| 173 | // IHttpNotify Implementation |
| 174 | // |
| 175 | |
| 176 | HttpError |
| 177 | HttpServer::Connection::onHttpHeaderComplete(bool chunked, size_t& data_size) { |
| 178 | if (data_size == SIZE_UNKNOWN) { |
| 179 | data_size = 0; |
| 180 | } |
| 181 | ASSERT(current_ != NULL); |
| 182 | bool custom_document = false; |
| 183 | server_->SignalHttpRequestHeader(server_, current_, &custom_document); |
| 184 | if (!custom_document) { |
| 185 | current_->request.document.reset(new MemoryStream); |
| 186 | } |
| 187 | return HE_NONE; |
| 188 | } |
| 189 | |
| 190 | void |
| 191 | HttpServer::Connection::onHttpComplete(HttpMode mode, HttpError err) { |
| 192 | if (mode == HM_SEND) { |
| 193 | ASSERT(current_ != NULL); |
| 194 | signalling_ = true; |
| 195 | server_->SignalHttpRequestComplete(server_, current_, err); |
| 196 | signalling_ = false; |
| 197 | if (close_) { |
| 198 | // Force a close |
| 199 | err = HE_DISCONNECTED; |
| 200 | } |
| 201 | } |
| 202 | if (err != HE_NONE) { |
| 203 | server_->Remove(connection_id_); |
| 204 | } else if (mode == HM_CONNECT) { |
| 205 | base_.recv(¤t_->request); |
| 206 | } else if (mode == HM_RECV) { |
| 207 | ASSERT(current_ != NULL); |
| 208 | // TODO: do we need this? |
| 209 | //request_.document_->rewind(); |
| 210 | HttpServerTransaction* transaction = current_; |
| 211 | current_ = NULL; |
| 212 | server_->SignalHttpRequest(server_, transaction); |
| 213 | } else if (mode == HM_SEND) { |
| 214 | Thread::Current()->Dispose(current_->response.document.release()); |
| 215 | current_->request.clear(true); |
| 216 | current_->response.clear(true); |
| 217 | base_.recv(¤t_->request); |
| 218 | } else { |
| 219 | ASSERT(false); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | void |
| 224 | HttpServer::Connection::onHttpClosed(HttpError err) { |
henrike@webrtc.org | 5199d1d | 2014-05-16 16:54:44 +0000 | [diff] [blame] | 225 | RTC_UNUSED(err); |
henrike@webrtc.org | 47be73b | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 226 | server_->Remove(connection_id_); |
| 227 | } |
| 228 | |
| 229 | /////////////////////////////////////////////////////////////////////////////// |
| 230 | // HttpListenServer |
| 231 | /////////////////////////////////////////////////////////////////////////////// |
| 232 | |
| 233 | HttpListenServer::HttpListenServer() { |
| 234 | SignalConnectionClosed.connect(this, &HttpListenServer::OnConnectionClosed); |
| 235 | } |
| 236 | |
| 237 | HttpListenServer::~HttpListenServer() { |
| 238 | } |
| 239 | |
| 240 | int HttpListenServer::Listen(const SocketAddress& address) { |
| 241 | AsyncSocket* sock = |
| 242 | Thread::Current()->socketserver()->CreateAsyncSocket(address.family(), |
| 243 | SOCK_STREAM); |
| 244 | if (!sock) { |
| 245 | return SOCKET_ERROR; |
| 246 | } |
| 247 | listener_.reset(sock); |
| 248 | listener_->SignalReadEvent.connect(this, &HttpListenServer::OnReadEvent); |
| 249 | if ((listener_->Bind(address) != SOCKET_ERROR) && |
| 250 | (listener_->Listen(5) != SOCKET_ERROR)) |
| 251 | return 0; |
| 252 | return listener_->GetError(); |
| 253 | } |
| 254 | |
| 255 | bool HttpListenServer::GetAddress(SocketAddress* address) const { |
| 256 | if (!listener_) { |
| 257 | return false; |
| 258 | } |
| 259 | *address = listener_->GetLocalAddress(); |
| 260 | return !address->IsNil(); |
| 261 | } |
| 262 | |
| 263 | void HttpListenServer::StopListening() { |
| 264 | if (listener_) { |
| 265 | listener_->Close(); |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | void HttpListenServer::OnReadEvent(AsyncSocket* socket) { |
| 270 | ASSERT(socket == listener_.get()); |
| 271 | ASSERT(listener_); |
| 272 | AsyncSocket* incoming = listener_->Accept(NULL); |
| 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 |