Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 17 | //#define LOG_NDEBUG 0 |
| 18 | #define LOG_TAG "ARTSPConnection" |
| 19 | #include <utils/Log.h> |
| 20 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 21 | #include "ARTSPConnection.h" |
| 22 | |
| 23 | #include <media/stagefright/foundation/ABuffer.h> |
| 24 | #include <media/stagefright/foundation/ADebug.h> |
| 25 | #include <media/stagefright/foundation/AMessage.h> |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 26 | #include <media/stagefright/MediaErrors.h> |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 27 | |
| 28 | #include <arpa/inet.h> |
| 29 | #include <fcntl.h> |
| 30 | #include <netdb.h> |
| 31 | #include <sys/socket.h> |
| 32 | |
| 33 | namespace android { |
| 34 | |
| 35 | // static |
| 36 | const int64_t ARTSPConnection::kSelectTimeoutUs = 1000ll; |
| 37 | |
| 38 | ARTSPConnection::ARTSPConnection() |
| 39 | : mState(DISCONNECTED), |
| 40 | mSocket(-1), |
| 41 | mConnectionID(0), |
| 42 | mNextCSeq(0), |
| 43 | mReceiveResponseEventPending(false) { |
| 44 | } |
| 45 | |
| 46 | ARTSPConnection::~ARTSPConnection() { |
| 47 | if (mSocket >= 0) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 48 | LOGE("Connection is still open, closing the socket."); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 49 | close(mSocket); |
| 50 | mSocket = -1; |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | void ARTSPConnection::connect(const char *url, const sp<AMessage> &reply) { |
| 55 | sp<AMessage> msg = new AMessage(kWhatConnect, id()); |
| 56 | msg->setString("url", url); |
| 57 | msg->setMessage("reply", reply); |
| 58 | msg->post(); |
| 59 | } |
| 60 | |
| 61 | void ARTSPConnection::disconnect(const sp<AMessage> &reply) { |
| 62 | sp<AMessage> msg = new AMessage(kWhatDisconnect, id()); |
| 63 | msg->setMessage("reply", reply); |
| 64 | msg->post(); |
| 65 | } |
| 66 | |
| 67 | void ARTSPConnection::sendRequest( |
| 68 | const char *request, const sp<AMessage> &reply) { |
| 69 | sp<AMessage> msg = new AMessage(kWhatSendRequest, id()); |
| 70 | msg->setString("request", request); |
| 71 | msg->setMessage("reply", reply); |
| 72 | msg->post(); |
| 73 | } |
| 74 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 75 | void ARTSPConnection::observeBinaryData(const sp<AMessage> &reply) { |
| 76 | sp<AMessage> msg = new AMessage(kWhatObserveBinaryData, id()); |
| 77 | msg->setMessage("reply", reply); |
| 78 | msg->post(); |
| 79 | } |
| 80 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 81 | void ARTSPConnection::onMessageReceived(const sp<AMessage> &msg) { |
| 82 | switch (msg->what()) { |
| 83 | case kWhatConnect: |
| 84 | onConnect(msg); |
| 85 | break; |
| 86 | |
| 87 | case kWhatDisconnect: |
| 88 | onDisconnect(msg); |
| 89 | break; |
| 90 | |
| 91 | case kWhatCompleteConnection: |
| 92 | onCompleteConnection(msg); |
| 93 | break; |
| 94 | |
| 95 | case kWhatSendRequest: |
| 96 | onSendRequest(msg); |
| 97 | break; |
| 98 | |
| 99 | case kWhatReceiveResponse: |
| 100 | onReceiveResponse(); |
| 101 | break; |
| 102 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 103 | case kWhatObserveBinaryData: |
| 104 | { |
| 105 | CHECK(msg->findMessage("reply", &mObserveBinaryMessage)); |
| 106 | break; |
| 107 | } |
| 108 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 109 | default: |
| 110 | TRESPASS(); |
| 111 | break; |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | // static |
| 116 | bool ARTSPConnection::ParseURL( |
| 117 | const char *url, AString *host, unsigned *port, AString *path) { |
| 118 | host->clear(); |
| 119 | *port = 0; |
| 120 | path->clear(); |
| 121 | |
| 122 | if (strncasecmp("rtsp://", url, 7)) { |
| 123 | return false; |
| 124 | } |
| 125 | |
| 126 | const char *slashPos = strchr(&url[7], '/'); |
| 127 | |
| 128 | if (slashPos == NULL) { |
| 129 | host->setTo(&url[7]); |
| 130 | path->setTo("/"); |
| 131 | } else { |
| 132 | host->setTo(&url[7], slashPos - &url[7]); |
| 133 | path->setTo(slashPos); |
| 134 | } |
| 135 | |
| 136 | char *colonPos = strchr(host->c_str(), ':'); |
| 137 | |
| 138 | if (colonPos != NULL) { |
| 139 | unsigned long x; |
| 140 | if (!ParseSingleUnsignedLong(colonPos + 1, &x) || x >= 65536) { |
| 141 | return false; |
| 142 | } |
| 143 | |
| 144 | *port = x; |
| 145 | |
| 146 | size_t colonOffset = colonPos - host->c_str(); |
| 147 | size_t trailing = host->size() - colonOffset; |
| 148 | host->erase(colonOffset, trailing); |
| 149 | } else { |
| 150 | *port = 554; |
| 151 | } |
| 152 | |
| 153 | return true; |
| 154 | } |
| 155 | |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 156 | static void MakeSocketBlocking(int s, bool blocking) { |
| 157 | // Make socket non-blocking. |
| 158 | int flags = fcntl(s, F_GETFL, 0); |
| 159 | CHECK_NE(flags, -1); |
| 160 | |
| 161 | if (blocking) { |
| 162 | flags &= ~O_NONBLOCK; |
| 163 | } else { |
| 164 | flags |= O_NONBLOCK; |
| 165 | } |
| 166 | |
| 167 | CHECK_NE(fcntl(s, F_SETFL, flags), -1); |
| 168 | } |
| 169 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 170 | void ARTSPConnection::onConnect(const sp<AMessage> &msg) { |
| 171 | ++mConnectionID; |
| 172 | |
| 173 | if (mState != DISCONNECTED) { |
| 174 | close(mSocket); |
| 175 | mSocket = -1; |
| 176 | |
| 177 | flushPendingRequests(); |
| 178 | } |
| 179 | |
| 180 | mState = CONNECTING; |
| 181 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 182 | AString url; |
| 183 | CHECK(msg->findString("url", &url)); |
| 184 | |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 185 | sp<AMessage> reply; |
| 186 | CHECK(msg->findMessage("reply", &reply)); |
| 187 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 188 | AString host, path; |
| 189 | unsigned port; |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 190 | if (!ParseURL(url.c_str(), &host, &port, &path)) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 191 | LOGE("Malformed rtsp url %s", url.c_str()); |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 192 | |
| 193 | reply->setInt32("result", ERROR_MALFORMED); |
| 194 | reply->post(); |
| 195 | |
| 196 | mState = DISCONNECTED; |
| 197 | return; |
| 198 | } |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 199 | |
| 200 | struct hostent *ent = gethostbyname(host.c_str()); |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 201 | if (ent == NULL) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 202 | LOGE("Unknown host %s", host.c_str()); |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 203 | |
| 204 | reply->setInt32("result", -ENOENT); |
| 205 | reply->post(); |
| 206 | |
| 207 | mState = DISCONNECTED; |
| 208 | return; |
| 209 | } |
| 210 | |
| 211 | mSocket = socket(AF_INET, SOCK_STREAM, 0); |
| 212 | |
| 213 | MakeSocketBlocking(mSocket, false); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 214 | |
| 215 | struct sockaddr_in remote; |
| 216 | memset(remote.sin_zero, 0, sizeof(remote.sin_zero)); |
| 217 | remote.sin_family = AF_INET; |
| 218 | remote.sin_addr.s_addr = *(in_addr_t *)ent->h_addr; |
| 219 | remote.sin_port = htons(port); |
| 220 | |
| 221 | int err = ::connect( |
| 222 | mSocket, (const struct sockaddr *)&remote, sizeof(remote)); |
| 223 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 224 | reply->setInt32("server-ip", ntohl(remote.sin_addr.s_addr)); |
| 225 | |
| 226 | if (err < 0) { |
| 227 | if (errno == EINPROGRESS) { |
| 228 | sp<AMessage> msg = new AMessage(kWhatCompleteConnection, id()); |
| 229 | msg->setMessage("reply", reply); |
| 230 | msg->setInt32("connection-id", mConnectionID); |
| 231 | msg->post(); |
| 232 | return; |
| 233 | } |
| 234 | |
| 235 | reply->setInt32("result", -errno); |
| 236 | mState = DISCONNECTED; |
| 237 | |
| 238 | close(mSocket); |
| 239 | mSocket = -1; |
| 240 | } else { |
| 241 | reply->setInt32("result", OK); |
| 242 | mState = CONNECTED; |
| 243 | mNextCSeq = 1; |
| 244 | |
| 245 | postReceiveReponseEvent(); |
| 246 | } |
| 247 | |
| 248 | reply->post(); |
| 249 | } |
| 250 | |
| 251 | void ARTSPConnection::onDisconnect(const sp<AMessage> &msg) { |
| 252 | if (mState == CONNECTED || mState == CONNECTING) { |
| 253 | close(mSocket); |
| 254 | mSocket = -1; |
| 255 | |
| 256 | flushPendingRequests(); |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 257 | } |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 258 | |
| 259 | sp<AMessage> reply; |
| 260 | CHECK(msg->findMessage("reply", &reply)); |
| 261 | |
| 262 | reply->setInt32("result", OK); |
| 263 | mState = DISCONNECTED; |
| 264 | |
| 265 | reply->post(); |
| 266 | } |
| 267 | |
| 268 | void ARTSPConnection::onCompleteConnection(const sp<AMessage> &msg) { |
| 269 | sp<AMessage> reply; |
| 270 | CHECK(msg->findMessage("reply", &reply)); |
| 271 | |
| 272 | int32_t connectionID; |
| 273 | CHECK(msg->findInt32("connection-id", &connectionID)); |
| 274 | |
| 275 | if ((connectionID != mConnectionID) || mState != CONNECTING) { |
| 276 | // While we were attempting to connect, the attempt was |
| 277 | // cancelled. |
| 278 | reply->setInt32("result", -ECONNABORTED); |
| 279 | reply->post(); |
| 280 | return; |
| 281 | } |
| 282 | |
| 283 | struct timeval tv; |
| 284 | tv.tv_sec = 0; |
| 285 | tv.tv_usec = kSelectTimeoutUs; |
| 286 | |
| 287 | fd_set ws; |
| 288 | FD_ZERO(&ws); |
| 289 | FD_SET(mSocket, &ws); |
| 290 | |
| 291 | int res = select(mSocket + 1, NULL, &ws, NULL, &tv); |
| 292 | CHECK_GE(res, 0); |
| 293 | |
| 294 | if (res == 0) { |
| 295 | // Timed out. Not yet connected. |
| 296 | |
| 297 | msg->post(); |
| 298 | return; |
| 299 | } |
| 300 | |
| 301 | int err; |
| 302 | socklen_t optionLen = sizeof(err); |
| 303 | CHECK_EQ(getsockopt(mSocket, SOL_SOCKET, SO_ERROR, &err, &optionLen), 0); |
| 304 | CHECK_EQ(optionLen, (socklen_t)sizeof(err)); |
| 305 | |
| 306 | if (err != 0) { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 307 | LOGE("err = %d (%s)", err, strerror(err)); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 308 | |
| 309 | reply->setInt32("result", -err); |
| 310 | |
| 311 | mState = DISCONNECTED; |
| 312 | close(mSocket); |
| 313 | mSocket = -1; |
| 314 | } else { |
| 315 | reply->setInt32("result", OK); |
| 316 | mState = CONNECTED; |
| 317 | mNextCSeq = 1; |
| 318 | |
| 319 | postReceiveReponseEvent(); |
| 320 | } |
| 321 | |
| 322 | reply->post(); |
| 323 | } |
| 324 | |
| 325 | void ARTSPConnection::onSendRequest(const sp<AMessage> &msg) { |
| 326 | sp<AMessage> reply; |
| 327 | CHECK(msg->findMessage("reply", &reply)); |
| 328 | |
| 329 | if (mState != CONNECTED) { |
| 330 | reply->setInt32("result", -ENOTCONN); |
| 331 | reply->post(); |
| 332 | return; |
| 333 | } |
| 334 | |
| 335 | AString request; |
| 336 | CHECK(msg->findString("request", &request)); |
| 337 | |
| 338 | // Find the boundary between headers and the body. |
| 339 | ssize_t i = request.find("\r\n\r\n"); |
| 340 | CHECK_GE(i, 0); |
| 341 | |
| 342 | int32_t cseq = mNextCSeq++; |
| 343 | |
| 344 | AString cseqHeader = "CSeq: "; |
| 345 | cseqHeader.append(cseq); |
| 346 | cseqHeader.append("\r\n"); |
| 347 | |
| 348 | request.insert(cseqHeader, i + 2); |
| 349 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 350 | LOGV("%s", request.c_str()); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 351 | |
| 352 | size_t numBytesSent = 0; |
| 353 | while (numBytesSent < request.size()) { |
| 354 | ssize_t n = |
| 355 | send(mSocket, request.c_str() + numBytesSent, |
| 356 | request.size() - numBytesSent, 0); |
| 357 | |
| 358 | if (n == 0) { |
| 359 | // Server closed the connection. |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 360 | LOGE("Server unexpectedly closed the connection."); |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 361 | |
| 362 | reply->setInt32("result", ERROR_IO); |
| 363 | reply->post(); |
| 364 | return; |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 365 | } else if (n < 0) { |
| 366 | if (errno == EINTR) { |
| 367 | continue; |
| 368 | } |
| 369 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 370 | LOGE("Error sending rtsp request."); |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 371 | reply->setInt32("result", -errno); |
| 372 | reply->post(); |
| 373 | return; |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 374 | } |
| 375 | |
| 376 | numBytesSent += (size_t)n; |
| 377 | } |
| 378 | |
| 379 | mPendingRequests.add(cseq, reply); |
| 380 | } |
| 381 | |
| 382 | void ARTSPConnection::onReceiveResponse() { |
| 383 | mReceiveResponseEventPending = false; |
| 384 | |
| 385 | if (mState != CONNECTED) { |
| 386 | return; |
| 387 | } |
| 388 | |
| 389 | struct timeval tv; |
| 390 | tv.tv_sec = 0; |
| 391 | tv.tv_usec = kSelectTimeoutUs; |
| 392 | |
| 393 | fd_set rs; |
| 394 | FD_ZERO(&rs); |
| 395 | FD_SET(mSocket, &rs); |
| 396 | |
| 397 | int res = select(mSocket + 1, &rs, NULL, NULL, &tv); |
| 398 | CHECK_GE(res, 0); |
| 399 | |
| 400 | if (res == 1) { |
Andreas Huber | af063a6 | 2010-08-18 10:17:18 -0700 | [diff] [blame] | 401 | MakeSocketBlocking(mSocket, true); |
| 402 | |
| 403 | bool success = receiveRTSPReponse(); |
| 404 | |
| 405 | MakeSocketBlocking(mSocket, false); |
| 406 | |
| 407 | if (!success) { |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 408 | // Something horrible, irreparable has happened. |
| 409 | flushPendingRequests(); |
| 410 | return; |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | postReceiveReponseEvent(); |
| 415 | } |
| 416 | |
| 417 | void ARTSPConnection::flushPendingRequests() { |
| 418 | for (size_t i = 0; i < mPendingRequests.size(); ++i) { |
| 419 | sp<AMessage> reply = mPendingRequests.valueAt(i); |
| 420 | |
| 421 | reply->setInt32("result", -ECONNABORTED); |
| 422 | reply->post(); |
| 423 | } |
| 424 | |
| 425 | mPendingRequests.clear(); |
| 426 | } |
| 427 | |
| 428 | void ARTSPConnection::postReceiveReponseEvent() { |
| 429 | if (mReceiveResponseEventPending) { |
| 430 | return; |
| 431 | } |
| 432 | |
| 433 | sp<AMessage> msg = new AMessage(kWhatReceiveResponse, id()); |
| 434 | msg->post(); |
| 435 | |
| 436 | mReceiveResponseEventPending = true; |
| 437 | } |
| 438 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 439 | status_t ARTSPConnection::receive(void *data, size_t size) { |
| 440 | size_t offset = 0; |
| 441 | while (offset < size) { |
| 442 | ssize_t n = recv(mSocket, (uint8_t *)data + offset, size - offset, 0); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 443 | if (n == 0) { |
| 444 | // Server closed the connection. |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 445 | LOGE("Server unexpectedly closed the connection."); |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 446 | return ERROR_IO; |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 447 | } else if (n < 0) { |
| 448 | if (errno == EINTR) { |
| 449 | continue; |
| 450 | } |
| 451 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 452 | LOGE("Error reading rtsp response."); |
Andreas Huber | f3d2bdf | 2010-09-15 11:18:13 -0700 | [diff] [blame] | 453 | return -errno; |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 454 | } |
| 455 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 456 | offset += (size_t)n; |
| 457 | } |
| 458 | |
| 459 | return OK; |
| 460 | } |
| 461 | |
| 462 | bool ARTSPConnection::receiveLine(AString *line) { |
| 463 | line->clear(); |
| 464 | |
| 465 | bool sawCR = false; |
| 466 | for (;;) { |
| 467 | char c; |
| 468 | if (receive(&c, 1) != OK) { |
| 469 | return false; |
| 470 | } |
| 471 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 472 | if (sawCR && c == '\n') { |
| 473 | line->erase(line->size() - 1, 1); |
| 474 | return true; |
| 475 | } |
| 476 | |
| 477 | line->append(&c, 1); |
| 478 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 479 | if (c == '$' && line->size() == 1) { |
| 480 | // Special-case for interleaved binary data. |
| 481 | return true; |
| 482 | } |
| 483 | |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 484 | sawCR = (c == '\r'); |
| 485 | } |
| 486 | } |
| 487 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 488 | sp<ABuffer> ARTSPConnection::receiveBinaryData() { |
| 489 | uint8_t x[3]; |
| 490 | if (receive(x, 3) != OK) { |
| 491 | return NULL; |
| 492 | } |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 493 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 494 | sp<ABuffer> buffer = new ABuffer((x[1] << 8) | x[2]); |
| 495 | if (receive(buffer->data(), buffer->size()) != OK) { |
| 496 | return NULL; |
| 497 | } |
| 498 | |
| 499 | buffer->meta()->setInt32("index", (int32_t)x[0]); |
| 500 | |
| 501 | return buffer; |
| 502 | } |
| 503 | |
| 504 | bool ARTSPConnection::receiveRTSPReponse() { |
| 505 | AString statusLine; |
| 506 | |
| 507 | if (!receiveLine(&statusLine)) { |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 508 | return false; |
| 509 | } |
| 510 | |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 511 | if (statusLine == "$") { |
| 512 | sp<ABuffer> buffer = receiveBinaryData(); |
| 513 | |
| 514 | if (buffer == NULL) { |
| 515 | return false; |
| 516 | } |
| 517 | |
| 518 | if (mObserveBinaryMessage != NULL) { |
| 519 | sp<AMessage> notify = mObserveBinaryMessage->dup(); |
| 520 | notify->setObject("buffer", buffer); |
| 521 | notify->post(); |
| 522 | } else { |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 523 | LOGW("received binary data, but no one cares."); |
Andreas Huber | 0416da7 | 2010-08-26 11:17:32 -0700 | [diff] [blame] | 524 | } |
| 525 | |
| 526 | return true; |
| 527 | } |
| 528 | |
| 529 | sp<ARTSPResponse> response = new ARTSPResponse; |
| 530 | response->mStatusLine = statusLine; |
| 531 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 532 | LOGI("status: %s", response->mStatusLine.c_str()); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 533 | |
| 534 | ssize_t space1 = response->mStatusLine.find(" "); |
| 535 | if (space1 < 0) { |
| 536 | return false; |
| 537 | } |
| 538 | ssize_t space2 = response->mStatusLine.find(" ", space1 + 1); |
| 539 | if (space2 < 0) { |
| 540 | return false; |
| 541 | } |
| 542 | |
| 543 | AString statusCodeStr( |
| 544 | response->mStatusLine, space1 + 1, space2 - space1 - 1); |
| 545 | |
| 546 | if (!ParseSingleUnsignedLong( |
| 547 | statusCodeStr.c_str(), &response->mStatusCode) |
| 548 | || response->mStatusCode < 100 || response->mStatusCode > 999) { |
| 549 | return false; |
| 550 | } |
| 551 | |
| 552 | AString line; |
| 553 | for (;;) { |
| 554 | if (!receiveLine(&line)) { |
| 555 | break; |
| 556 | } |
| 557 | |
| 558 | if (line.empty()) { |
| 559 | break; |
| 560 | } |
| 561 | |
Andreas Huber | 6e3fa44 | 2010-09-21 13:13:15 -0700 | [diff] [blame] | 562 | LOGV("line: %s", line.c_str()); |
Andreas Huber | 7a747b8 | 2010-06-07 15:19:40 -0700 | [diff] [blame] | 563 | |
| 564 | ssize_t colonPos = line.find(":"); |
| 565 | if (colonPos < 0) { |
| 566 | // Malformed header line. |
| 567 | return false; |
| 568 | } |
| 569 | |
| 570 | AString key(line, 0, colonPos); |
| 571 | key.trim(); |
| 572 | key.tolower(); |
| 573 | |
| 574 | line.erase(0, colonPos + 1); |
| 575 | line.trim(); |
| 576 | |
| 577 | response->mHeaders.add(key, line); |
| 578 | } |
| 579 | |
| 580 | unsigned long contentLength = 0; |
| 581 | |
| 582 | ssize_t i = response->mHeaders.indexOfKey("content-length"); |
| 583 | |
| 584 | if (i >= 0) { |
| 585 | AString value = response->mHeaders.valueAt(i); |
| 586 | if (!ParseSingleUnsignedLong(value.c_str(), &contentLength)) { |
| 587 | return false; |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | if (contentLength > 0) { |
| 592 | response->mContent = new ABuffer(contentLength); |
| 593 | |
| 594 | size_t numBytesRead = 0; |
| 595 | while (numBytesRead < contentLength) { |
| 596 | ssize_t n = recv( |
| 597 | mSocket, response->mContent->data() + numBytesRead, |
| 598 | contentLength - numBytesRead, 0); |
| 599 | |
| 600 | if (n == 0) { |
| 601 | // Server closed the connection. |
| 602 | TRESPASS(); |
| 603 | } else if (n < 0) { |
| 604 | if (errno == EINTR) { |
| 605 | continue; |
| 606 | } |
| 607 | |
| 608 | TRESPASS(); |
| 609 | } |
| 610 | |
| 611 | numBytesRead += (size_t)n; |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | return notifyResponseListener(response); |
| 616 | } |
| 617 | |
| 618 | // static |
| 619 | bool ARTSPConnection::ParseSingleUnsignedLong( |
| 620 | const char *from, unsigned long *x) { |
| 621 | char *end; |
| 622 | *x = strtoul(from, &end, 10); |
| 623 | |
| 624 | if (end == from || *end != '\0') { |
| 625 | return false; |
| 626 | } |
| 627 | |
| 628 | return true; |
| 629 | } |
| 630 | |
| 631 | bool ARTSPConnection::notifyResponseListener( |
| 632 | const sp<ARTSPResponse> &response) { |
| 633 | ssize_t i = response->mHeaders.indexOfKey("cseq"); |
| 634 | |
| 635 | if (i < 0) { |
| 636 | return true; |
| 637 | } |
| 638 | |
| 639 | AString value = response->mHeaders.valueAt(i); |
| 640 | |
| 641 | unsigned long cseq; |
| 642 | if (!ParseSingleUnsignedLong(value.c_str(), &cseq)) { |
| 643 | return false; |
| 644 | } |
| 645 | |
| 646 | i = mPendingRequests.indexOfKey(cseq); |
| 647 | |
| 648 | if (i < 0) { |
| 649 | // Unsolicited response? |
| 650 | TRESPASS(); |
| 651 | } |
| 652 | |
| 653 | sp<AMessage> reply = mPendingRequests.valueAt(i); |
| 654 | mPendingRequests.removeItemsAt(i); |
| 655 | |
| 656 | reply->setInt32("result", OK); |
| 657 | reply->setObject("response", response); |
| 658 | reply->post(); |
| 659 | |
| 660 | return true; |
| 661 | } |
| 662 | |
| 663 | } // namespace android |