henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004--2005, Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #include <algorithm> |
| 29 | |
| 30 | #include "talk/base/httpcommon-inl.h" |
| 31 | |
| 32 | #include "talk/base/asyncsocket.h" |
| 33 | #include "talk/base/common.h" |
| 34 | #include "talk/base/httpserver.h" |
| 35 | #include "talk/base/logging.h" |
| 36 | #include "talk/base/socketstream.h" |
| 37 | #include "talk/base/thread.h" |
| 38 | |
| 39 | namespace talk_base { |
| 40 | |
| 41 | /////////////////////////////////////////////////////////////////////////////// |
| 42 | // HttpServer |
| 43 | /////////////////////////////////////////////////////////////////////////////// |
| 44 | |
| 45 | HttpServer::HttpServer() : next_connection_id_(1), closing_(false) { |
| 46 | } |
| 47 | |
| 48 | HttpServer::~HttpServer() { |
| 49 | if (closing_) { |
| 50 | LOG(LS_WARNING) << "HttpServer::CloseAll has not completed"; |
| 51 | } |
| 52 | for (ConnectionMap::iterator it = connections_.begin(); |
| 53 | it != connections_.end(); |
| 54 | ++it) { |
| 55 | StreamInterface* stream = it->second->EndProcess(); |
| 56 | delete stream; |
| 57 | delete it->second; |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | int |
| 62 | HttpServer::HandleConnection(StreamInterface* stream) { |
| 63 | int connection_id = next_connection_id_++; |
| 64 | ASSERT(connection_id != HTTP_INVALID_CONNECTION_ID); |
| 65 | Connection* connection = new Connection(connection_id, this); |
| 66 | connections_.insert(ConnectionMap::value_type(connection_id, connection)); |
| 67 | connection->BeginProcess(stream); |
| 68 | return connection_id; |
| 69 | } |
| 70 | |
| 71 | void |
| 72 | HttpServer::Respond(HttpServerTransaction* transaction) { |
| 73 | int connection_id = transaction->connection_id(); |
| 74 | if (Connection* connection = Find(connection_id)) { |
| 75 | connection->Respond(transaction); |
| 76 | } else { |
| 77 | delete transaction; |
| 78 | // We may be tempted to SignalHttpComplete, but that implies that a |
| 79 | // connection still exists. |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | void |
| 84 | HttpServer::Close(int connection_id, bool force) { |
| 85 | if (Connection* connection = Find(connection_id)) { |
| 86 | connection->InitiateClose(force); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | void |
| 91 | HttpServer::CloseAll(bool force) { |
| 92 | if (connections_.empty()) { |
| 93 | SignalCloseAllComplete(this); |
| 94 | return; |
| 95 | } |
| 96 | closing_ = true; |
| 97 | std::list<Connection*> connections; |
| 98 | for (ConnectionMap::const_iterator it = connections_.begin(); |
| 99 | it != connections_.end(); ++it) { |
| 100 | connections.push_back(it->second); |
| 101 | } |
| 102 | for (std::list<Connection*>::const_iterator it = connections.begin(); |
| 103 | it != connections.end(); ++it) { |
| 104 | (*it)->InitiateClose(force); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | HttpServer::Connection* |
| 109 | HttpServer::Find(int connection_id) { |
| 110 | ConnectionMap::iterator it = connections_.find(connection_id); |
| 111 | if (it == connections_.end()) |
| 112 | return NULL; |
| 113 | return it->second; |
| 114 | } |
| 115 | |
| 116 | void |
| 117 | HttpServer::Remove(int connection_id) { |
| 118 | ConnectionMap::iterator it = connections_.find(connection_id); |
| 119 | if (it == connections_.end()) { |
| 120 | ASSERT(false); |
| 121 | return; |
| 122 | } |
| 123 | Connection* connection = it->second; |
| 124 | connections_.erase(it); |
| 125 | SignalConnectionClosed(this, connection_id, connection->EndProcess()); |
| 126 | delete connection; |
| 127 | if (closing_ && connections_.empty()) { |
| 128 | closing_ = false; |
| 129 | SignalCloseAllComplete(this); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | /////////////////////////////////////////////////////////////////////////////// |
| 134 | // HttpServer::Connection |
| 135 | /////////////////////////////////////////////////////////////////////////////// |
| 136 | |
| 137 | HttpServer::Connection::Connection(int connection_id, HttpServer* server) |
| 138 | : connection_id_(connection_id), server_(server), |
| 139 | current_(NULL), signalling_(false), close_(false) { |
| 140 | } |
| 141 | |
| 142 | HttpServer::Connection::~Connection() { |
| 143 | // It's possible that an object hosted inside this transaction signalled |
| 144 | // an event which caused the connection to close. |
| 145 | Thread::Current()->Dispose(current_); |
| 146 | } |
| 147 | |
| 148 | void |
| 149 | HttpServer::Connection::BeginProcess(StreamInterface* stream) { |
| 150 | base_.notify(this); |
| 151 | base_.attach(stream); |
| 152 | current_ = new HttpServerTransaction(connection_id_); |
| 153 | if (base_.mode() != HM_CONNECT) |
| 154 | base_.recv(¤t_->request); |
| 155 | } |
| 156 | |
| 157 | StreamInterface* |
| 158 | HttpServer::Connection::EndProcess() { |
| 159 | base_.notify(NULL); |
| 160 | base_.abort(HE_DISCONNECTED); |
| 161 | return base_.detach(); |
| 162 | } |
| 163 | |
| 164 | void |
| 165 | HttpServer::Connection::Respond(HttpServerTransaction* transaction) { |
| 166 | ASSERT(current_ == NULL); |
| 167 | current_ = transaction; |
| 168 | if (current_->response.begin() == current_->response.end()) { |
| 169 | current_->response.set_error(HC_INTERNAL_SERVER_ERROR); |
| 170 | } |
| 171 | bool keep_alive = HttpShouldKeepAlive(current_->request); |
| 172 | current_->response.setHeader(HH_CONNECTION, |
| 173 | keep_alive ? "Keep-Alive" : "Close", |
| 174 | false); |
| 175 | close_ = !HttpShouldKeepAlive(current_->response); |
| 176 | base_.send(¤t_->response); |
| 177 | } |
| 178 | |
| 179 | void |
| 180 | HttpServer::Connection::InitiateClose(bool force) { |
| 181 | bool request_in_progress = (HM_SEND == base_.mode()) || (NULL == current_); |
| 182 | if (!signalling_ && (force || !request_in_progress)) { |
| 183 | server_->Remove(connection_id_); |
| 184 | } else { |
| 185 | close_ = true; |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | // |
| 190 | // IHttpNotify Implementation |
| 191 | // |
| 192 | |
| 193 | HttpError |
| 194 | HttpServer::Connection::onHttpHeaderComplete(bool chunked, size_t& data_size) { |
| 195 | if (data_size == SIZE_UNKNOWN) { |
| 196 | data_size = 0; |
| 197 | } |
| 198 | ASSERT(current_ != NULL); |
| 199 | bool custom_document = false; |
| 200 | server_->SignalHttpRequestHeader(server_, current_, &custom_document); |
| 201 | if (!custom_document) { |
| 202 | current_->request.document.reset(new MemoryStream); |
| 203 | } |
| 204 | return HE_NONE; |
| 205 | } |
| 206 | |
| 207 | void |
| 208 | HttpServer::Connection::onHttpComplete(HttpMode mode, HttpError err) { |
| 209 | if (mode == HM_SEND) { |
| 210 | ASSERT(current_ != NULL); |
| 211 | signalling_ = true; |
| 212 | server_->SignalHttpRequestComplete(server_, current_, err); |
| 213 | signalling_ = false; |
| 214 | if (close_) { |
| 215 | // Force a close |
| 216 | err = HE_DISCONNECTED; |
| 217 | } |
| 218 | } |
| 219 | if (err != HE_NONE) { |
| 220 | server_->Remove(connection_id_); |
| 221 | } else if (mode == HM_CONNECT) { |
| 222 | base_.recv(¤t_->request); |
| 223 | } else if (mode == HM_RECV) { |
| 224 | ASSERT(current_ != NULL); |
| 225 | // TODO: do we need this? |
| 226 | //request_.document_->rewind(); |
| 227 | HttpServerTransaction* transaction = current_; |
| 228 | current_ = NULL; |
| 229 | server_->SignalHttpRequest(server_, transaction); |
| 230 | } else if (mode == HM_SEND) { |
| 231 | Thread::Current()->Dispose(current_->response.document.release()); |
| 232 | current_->request.clear(true); |
| 233 | current_->response.clear(true); |
| 234 | base_.recv(¤t_->request); |
| 235 | } else { |
| 236 | ASSERT(false); |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | void |
| 241 | HttpServer::Connection::onHttpClosed(HttpError err) { |
| 242 | UNUSED(err); |
| 243 | server_->Remove(connection_id_); |
| 244 | } |
| 245 | |
| 246 | /////////////////////////////////////////////////////////////////////////////// |
| 247 | // HttpListenServer |
| 248 | /////////////////////////////////////////////////////////////////////////////// |
| 249 | |
| 250 | HttpListenServer::HttpListenServer() { |
| 251 | SignalConnectionClosed.connect(this, &HttpListenServer::OnConnectionClosed); |
| 252 | } |
| 253 | |
| 254 | HttpListenServer::~HttpListenServer() { |
| 255 | } |
| 256 | |
| 257 | int HttpListenServer::Listen(const SocketAddress& address) { |
| 258 | AsyncSocket* sock = |
| 259 | Thread::Current()->socketserver()->CreateAsyncSocket(address.family(), |
| 260 | SOCK_STREAM); |
| 261 | if (!sock) { |
| 262 | return SOCKET_ERROR; |
| 263 | } |
| 264 | listener_.reset(sock); |
| 265 | listener_->SignalReadEvent.connect(this, &HttpListenServer::OnReadEvent); |
| 266 | if ((listener_->Bind(address) != SOCKET_ERROR) && |
| 267 | (listener_->Listen(5) != SOCKET_ERROR)) |
| 268 | return 0; |
| 269 | return listener_->GetError(); |
| 270 | } |
| 271 | |
| 272 | bool HttpListenServer::GetAddress(SocketAddress* address) const { |
| 273 | if (!listener_) { |
| 274 | return false; |
| 275 | } |
| 276 | *address = listener_->GetLocalAddress(); |
| 277 | return !address->IsNil(); |
| 278 | } |
| 279 | |
| 280 | void HttpListenServer::StopListening() { |
| 281 | if (listener_) { |
| 282 | listener_->Close(); |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | void HttpListenServer::OnReadEvent(AsyncSocket* socket) { |
| 287 | ASSERT(socket == listener_.get()); |
| 288 | ASSERT(listener_); |
| 289 | AsyncSocket* incoming = listener_->Accept(NULL); |
| 290 | if (incoming) { |
| 291 | StreamInterface* stream = new SocketStream(incoming); |
| 292 | //stream = new LoggingAdapter(stream, LS_VERBOSE, "HttpServer", false); |
| 293 | HandleConnection(stream); |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | void HttpListenServer::OnConnectionClosed(HttpServer* server, |
| 298 | int connection_id, |
| 299 | StreamInterface* stream) { |
| 300 | Thread::Current()->Dispose(stream); |
| 301 | } |
| 302 | |
| 303 | /////////////////////////////////////////////////////////////////////////////// |
| 304 | |
| 305 | } // namespace talk_base |