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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2013 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 "talk/app/webrtc/webrtcsessiondescriptionfactory.h" | |
| 29 | |
| 30 #include <utility> | |
| 31 | |
| 32 #include "talk/app/webrtc/dtlsidentitystore.h" | |
| 33 #include "talk/app/webrtc/jsep.h" | |
| 34 #include "talk/app/webrtc/jsepsessiondescription.h" | |
| 35 #include "talk/app/webrtc/mediaconstraintsinterface.h" | |
| 36 #include "talk/app/webrtc/webrtcsession.h" | |
| 37 #include "webrtc/base/sslidentity.h" | |
| 38 | |
| 39 using cricket::MediaSessionOptions; | |
| 40 | |
| 41 namespace webrtc { | |
| 42 namespace { | |
| 43 static const char kFailedDueToIdentityFailed[] = | |
| 44 " failed because DTLS identity request failed"; | |
| 45 static const char kFailedDueToSessionShutdown[] = | |
| 46 " failed because the session was shut down"; | |
| 47 | |
| 48 static const uint64_t kInitSessionVersion = 2; | |
| 49 | |
| 50 static bool CompareStream(const MediaSessionOptions::Stream& stream1, | |
| 51 const MediaSessionOptions::Stream& stream2) { | |
| 52 return stream1.id < stream2.id; | |
| 53 } | |
| 54 | |
| 55 static bool SameId(const MediaSessionOptions::Stream& stream1, | |
| 56 const MediaSessionOptions::Stream& stream2) { | |
| 57 return stream1.id == stream2.id; | |
| 58 } | |
| 59 | |
| 60 // Checks if each Stream within the |streams| has unique id. | |
| 61 static bool ValidStreams(const MediaSessionOptions::Streams& streams) { | |
| 62 MediaSessionOptions::Streams sorted_streams = streams; | |
| 63 std::sort(sorted_streams.begin(), sorted_streams.end(), CompareStream); | |
| 64 MediaSessionOptions::Streams::iterator it = | |
| 65 std::adjacent_find(sorted_streams.begin(), sorted_streams.end(), | |
| 66 SameId); | |
| 67 return it == sorted_streams.end(); | |
| 68 } | |
| 69 | |
| 70 enum { | |
| 71 MSG_CREATE_SESSIONDESCRIPTION_SUCCESS, | |
| 72 MSG_CREATE_SESSIONDESCRIPTION_FAILED, | |
| 73 MSG_USE_CONSTRUCTOR_CERTIFICATE | |
| 74 }; | |
| 75 | |
| 76 struct CreateSessionDescriptionMsg : public rtc::MessageData { | |
| 77 explicit CreateSessionDescriptionMsg( | |
| 78 webrtc::CreateSessionDescriptionObserver* observer) | |
| 79 : observer(observer) { | |
| 80 } | |
| 81 | |
| 82 rtc::scoped_refptr<webrtc::CreateSessionDescriptionObserver> observer; | |
| 83 std::string error; | |
| 84 rtc::scoped_ptr<webrtc::SessionDescriptionInterface> description; | |
| 85 }; | |
| 86 } // namespace | |
| 87 | |
| 88 void WebRtcIdentityRequestObserver::OnFailure(int error) { | |
| 89 SignalRequestFailed(error); | |
| 90 } | |
| 91 | |
| 92 void WebRtcIdentityRequestObserver::OnSuccess( | |
| 93 const std::string& der_cert, const std::string& der_private_key) { | |
| 94 std::string pem_cert = rtc::SSLIdentity::DerToPem( | |
| 95 rtc::kPemTypeCertificate, | |
| 96 reinterpret_cast<const unsigned char*>(der_cert.data()), | |
| 97 der_cert.length()); | |
| 98 std::string pem_key = rtc::SSLIdentity::DerToPem( | |
| 99 rtc::kPemTypeRsaPrivateKey, | |
| 100 reinterpret_cast<const unsigned char*>(der_private_key.data()), | |
| 101 der_private_key.length()); | |
| 102 rtc::scoped_ptr<rtc::SSLIdentity> identity( | |
| 103 rtc::SSLIdentity::FromPEMStrings(pem_key, pem_cert)); | |
| 104 SignalCertificateReady(rtc::RTCCertificate::Create(std::move(identity))); | |
| 105 } | |
| 106 | |
| 107 void WebRtcIdentityRequestObserver::OnSuccess( | |
| 108 rtc::scoped_ptr<rtc::SSLIdentity> identity) { | |
| 109 SignalCertificateReady(rtc::RTCCertificate::Create(std::move(identity))); | |
| 110 } | |
| 111 | |
| 112 // static | |
| 113 void WebRtcSessionDescriptionFactory::CopyCandidatesFromSessionDescription( | |
| 114 const SessionDescriptionInterface* source_desc, | |
| 115 SessionDescriptionInterface* dest_desc) { | |
| 116 if (!source_desc) | |
| 117 return; | |
| 118 for (size_t m = 0; m < source_desc->number_of_mediasections() && | |
| 119 m < dest_desc->number_of_mediasections(); ++m) { | |
| 120 const IceCandidateCollection* source_candidates = | |
| 121 source_desc->candidates(m); | |
| 122 const IceCandidateCollection* dest_candidates = dest_desc->candidates(m); | |
| 123 for (size_t n = 0; n < source_candidates->count(); ++n) { | |
| 124 const IceCandidateInterface* new_candidate = source_candidates->at(n); | |
| 125 if (!dest_candidates->HasCandidate(new_candidate)) | |
| 126 dest_desc->AddCandidate(source_candidates->at(n)); | |
| 127 } | |
| 128 } | |
| 129 } | |
| 130 | |
| 131 // Private constructor called by other constructors. | |
| 132 WebRtcSessionDescriptionFactory::WebRtcSessionDescriptionFactory( | |
| 133 rtc::Thread* signaling_thread, | |
| 134 cricket::ChannelManager* channel_manager, | |
| 135 rtc::scoped_ptr<DtlsIdentityStoreInterface> dtls_identity_store, | |
| 136 const rtc::scoped_refptr<WebRtcIdentityRequestObserver>& | |
| 137 identity_request_observer, | |
| 138 WebRtcSession* session, | |
| 139 const std::string& session_id, | |
| 140 bool dtls_enabled) | |
| 141 : signaling_thread_(signaling_thread), | |
| 142 session_desc_factory_(channel_manager, &transport_desc_factory_), | |
| 143 // RFC 4566 suggested a Network Time Protocol (NTP) format timestamp | |
| 144 // as the session id and session version. To simplify, it should be fine | |
| 145 // to just use a random number as session id and start version from | |
| 146 // |kInitSessionVersion|. | |
| 147 session_version_(kInitSessionVersion), | |
| 148 dtls_identity_store_(std::move(dtls_identity_store)), | |
| 149 identity_request_observer_(identity_request_observer), | |
| 150 session_(session), | |
| 151 session_id_(session_id), | |
| 152 certificate_request_state_(CERTIFICATE_NOT_NEEDED) { | |
| 153 session_desc_factory_.set_add_legacy_streams(false); | |
| 154 // SRTP-SDES is disabled if DTLS is on. | |
| 155 SetSdesPolicy(dtls_enabled ? cricket::SEC_DISABLED : cricket::SEC_REQUIRED); | |
| 156 } | |
| 157 | |
| 158 WebRtcSessionDescriptionFactory::WebRtcSessionDescriptionFactory( | |
| 159 rtc::Thread* signaling_thread, | |
| 160 cricket::ChannelManager* channel_manager, | |
| 161 WebRtcSession* session, | |
| 162 const std::string& session_id) | |
| 163 : WebRtcSessionDescriptionFactory(signaling_thread, | |
| 164 channel_manager, | |
| 165 nullptr, | |
| 166 nullptr, | |
| 167 session, | |
| 168 session_id, | |
| 169 false) { | |
| 170 LOG(LS_VERBOSE) << "DTLS-SRTP disabled."; | |
| 171 } | |
| 172 | |
| 173 WebRtcSessionDescriptionFactory::WebRtcSessionDescriptionFactory( | |
| 174 rtc::Thread* signaling_thread, | |
| 175 cricket::ChannelManager* channel_manager, | |
| 176 rtc::scoped_ptr<DtlsIdentityStoreInterface> dtls_identity_store, | |
| 177 WebRtcSession* session, | |
| 178 const std::string& session_id) | |
| 179 : WebRtcSessionDescriptionFactory( | |
| 180 signaling_thread, | |
| 181 channel_manager, | |
| 182 std::move(dtls_identity_store), | |
| 183 new rtc::RefCountedObject<WebRtcIdentityRequestObserver>(), | |
| 184 session, | |
| 185 session_id, | |
| 186 true) { | |
| 187 RTC_DCHECK(dtls_identity_store_); | |
| 188 | |
| 189 certificate_request_state_ = CERTIFICATE_WAITING; | |
| 190 | |
| 191 identity_request_observer_->SignalRequestFailed.connect( | |
| 192 this, &WebRtcSessionDescriptionFactory::OnIdentityRequestFailed); | |
| 193 identity_request_observer_->SignalCertificateReady.connect( | |
| 194 this, &WebRtcSessionDescriptionFactory::SetCertificate); | |
| 195 | |
| 196 rtc::KeyType key_type = rtc::KT_DEFAULT; | |
| 197 LOG(LS_VERBOSE) << "DTLS-SRTP enabled; sending DTLS identity request (key " | |
| 198 << "type: " << key_type << ")."; | |
| 199 | |
| 200 // Request identity. This happens asynchronously, so the caller will have a | |
| 201 // chance to connect to SignalIdentityReady. | |
| 202 dtls_identity_store_->RequestIdentity(key_type, identity_request_observer_); | |
| 203 } | |
| 204 | |
| 205 WebRtcSessionDescriptionFactory::WebRtcSessionDescriptionFactory( | |
| 206 rtc::Thread* signaling_thread, | |
| 207 cricket::ChannelManager* channel_manager, | |
| 208 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate, | |
| 209 WebRtcSession* session, | |
| 210 const std::string& session_id) | |
| 211 : WebRtcSessionDescriptionFactory(signaling_thread, | |
| 212 channel_manager, | |
| 213 nullptr, | |
| 214 nullptr, | |
| 215 session, | |
| 216 session_id, | |
| 217 true) { | |
| 218 RTC_DCHECK(certificate); | |
| 219 | |
| 220 certificate_request_state_ = CERTIFICATE_WAITING; | |
| 221 | |
| 222 LOG(LS_VERBOSE) << "DTLS-SRTP enabled; has certificate parameter."; | |
| 223 // We already have a certificate but we wait to do SetIdentity; if we do | |
| 224 // it in the constructor then the caller has not had a chance to connect to | |
| 225 // SignalIdentityReady. | |
| 226 signaling_thread_->Post( | |
| 227 this, MSG_USE_CONSTRUCTOR_CERTIFICATE, | |
| 228 new rtc::ScopedRefMessageData<rtc::RTCCertificate>(certificate)); | |
| 229 } | |
| 230 | |
| 231 WebRtcSessionDescriptionFactory::~WebRtcSessionDescriptionFactory() { | |
| 232 ASSERT(signaling_thread_->IsCurrent()); | |
| 233 | |
| 234 // Fail any requests that were asked for before identity generation completed. | |
| 235 FailPendingRequests(kFailedDueToSessionShutdown); | |
| 236 | |
| 237 // Process all pending notifications in the message queue. If we don't do | |
| 238 // this, requests will linger and not know they succeeded or failed. | |
| 239 rtc::MessageList list; | |
| 240 signaling_thread_->Clear(this, rtc::MQID_ANY, &list); | |
| 241 for (auto& msg : list) { | |
| 242 if (msg.message_id != MSG_USE_CONSTRUCTOR_CERTIFICATE) { | |
| 243 OnMessage(&msg); | |
| 244 } else { | |
| 245 // Skip MSG_USE_CONSTRUCTOR_CERTIFICATE because we don't want to trigger | |
| 246 // SetIdentity-related callbacks in the destructor. This can be a problem | |
| 247 // when WebRtcSession listens to the callback but it was the WebRtcSession | |
| 248 // destructor that caused WebRtcSessionDescriptionFactory's destruction. | |
| 249 // The callback is then ignored, leaking memory allocated by OnMessage for | |
| 250 // MSG_USE_CONSTRUCTOR_CERTIFICATE. | |
| 251 delete msg.pdata; | |
| 252 } | |
| 253 } | |
| 254 } | |
| 255 | |
| 256 void WebRtcSessionDescriptionFactory::CreateOffer( | |
| 257 CreateSessionDescriptionObserver* observer, | |
| 258 const PeerConnectionInterface::RTCOfferAnswerOptions& options, | |
| 259 const cricket::MediaSessionOptions& session_options) { | |
| 260 std::string error = "CreateOffer"; | |
| 261 if (certificate_request_state_ == CERTIFICATE_FAILED) { | |
| 262 error += kFailedDueToIdentityFailed; | |
| 263 LOG(LS_ERROR) << error; | |
| 264 PostCreateSessionDescriptionFailed(observer, error); | |
| 265 return; | |
| 266 } | |
| 267 | |
| 268 if (!ValidStreams(session_options.streams)) { | |
| 269 error += " called with invalid media streams."; | |
| 270 LOG(LS_ERROR) << error; | |
| 271 PostCreateSessionDescriptionFailed(observer, error); | |
| 272 return; | |
| 273 } | |
| 274 | |
| 275 CreateSessionDescriptionRequest request( | |
| 276 CreateSessionDescriptionRequest::kOffer, observer, session_options); | |
| 277 if (certificate_request_state_ == CERTIFICATE_WAITING) { | |
| 278 create_session_description_requests_.push(request); | |
| 279 } else { | |
| 280 ASSERT(certificate_request_state_ == CERTIFICATE_SUCCEEDED || | |
| 281 certificate_request_state_ == CERTIFICATE_NOT_NEEDED); | |
| 282 InternalCreateOffer(request); | |
| 283 } | |
| 284 } | |
| 285 | |
| 286 void WebRtcSessionDescriptionFactory::CreateAnswer( | |
| 287 CreateSessionDescriptionObserver* observer, | |
| 288 const MediaConstraintsInterface* constraints, | |
| 289 const cricket::MediaSessionOptions& session_options) { | |
| 290 std::string error = "CreateAnswer"; | |
| 291 if (certificate_request_state_ == CERTIFICATE_FAILED) { | |
| 292 error += kFailedDueToIdentityFailed; | |
| 293 LOG(LS_ERROR) << error; | |
| 294 PostCreateSessionDescriptionFailed(observer, error); | |
| 295 return; | |
| 296 } | |
| 297 if (!session_->remote_description()) { | |
| 298 error += " can't be called before SetRemoteDescription."; | |
| 299 LOG(LS_ERROR) << error; | |
| 300 PostCreateSessionDescriptionFailed(observer, error); | |
| 301 return; | |
| 302 } | |
| 303 if (session_->remote_description()->type() != | |
| 304 JsepSessionDescription::kOffer) { | |
| 305 error += " failed because remote_description is not an offer."; | |
| 306 LOG(LS_ERROR) << error; | |
| 307 PostCreateSessionDescriptionFailed(observer, error); | |
| 308 return; | |
| 309 } | |
| 310 | |
| 311 if (!ValidStreams(session_options.streams)) { | |
| 312 error += " called with invalid media streams."; | |
| 313 LOG(LS_ERROR) << error; | |
| 314 PostCreateSessionDescriptionFailed(observer, error); | |
| 315 return; | |
| 316 } | |
| 317 | |
| 318 CreateSessionDescriptionRequest request( | |
| 319 CreateSessionDescriptionRequest::kAnswer, observer, session_options); | |
| 320 if (certificate_request_state_ == CERTIFICATE_WAITING) { | |
| 321 create_session_description_requests_.push(request); | |
| 322 } else { | |
| 323 ASSERT(certificate_request_state_ == CERTIFICATE_SUCCEEDED || | |
| 324 certificate_request_state_ == CERTIFICATE_NOT_NEEDED); | |
| 325 InternalCreateAnswer(request); | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 void WebRtcSessionDescriptionFactory::SetSdesPolicy( | |
| 330 cricket::SecurePolicy secure_policy) { | |
| 331 session_desc_factory_.set_secure(secure_policy); | |
| 332 } | |
| 333 | |
| 334 cricket::SecurePolicy WebRtcSessionDescriptionFactory::SdesPolicy() const { | |
| 335 return session_desc_factory_.secure(); | |
| 336 } | |
| 337 | |
| 338 void WebRtcSessionDescriptionFactory::OnMessage(rtc::Message* msg) { | |
| 339 switch (msg->message_id) { | |
| 340 case MSG_CREATE_SESSIONDESCRIPTION_SUCCESS: { | |
| 341 CreateSessionDescriptionMsg* param = | |
| 342 static_cast<CreateSessionDescriptionMsg*>(msg->pdata); | |
| 343 param->observer->OnSuccess(param->description.release()); | |
| 344 delete param; | |
| 345 break; | |
| 346 } | |
| 347 case MSG_CREATE_SESSIONDESCRIPTION_FAILED: { | |
| 348 CreateSessionDescriptionMsg* param = | |
| 349 static_cast<CreateSessionDescriptionMsg*>(msg->pdata); | |
| 350 param->observer->OnFailure(param->error); | |
| 351 delete param; | |
| 352 break; | |
| 353 } | |
| 354 case MSG_USE_CONSTRUCTOR_CERTIFICATE: { | |
| 355 rtc::ScopedRefMessageData<rtc::RTCCertificate>* param = | |
| 356 static_cast<rtc::ScopedRefMessageData<rtc::RTCCertificate>*>( | |
| 357 msg->pdata); | |
| 358 LOG(LS_INFO) << "Using certificate supplied to the constructor."; | |
| 359 SetCertificate(param->data()); | |
| 360 delete param; | |
| 361 break; | |
| 362 } | |
| 363 default: | |
| 364 ASSERT(false); | |
| 365 break; | |
| 366 } | |
| 367 } | |
| 368 | |
| 369 void WebRtcSessionDescriptionFactory::InternalCreateOffer( | |
| 370 CreateSessionDescriptionRequest request) { | |
| 371 cricket::SessionDescription* desc(session_desc_factory_.CreateOffer( | |
| 372 request.options, session_->local_description() | |
| 373 ? session_->local_description()->description() | |
| 374 : nullptr)); | |
| 375 // RFC 3264 | |
| 376 // When issuing an offer that modifies the session, | |
| 377 // the "o=" line of the new SDP MUST be identical to that in the | |
| 378 // previous SDP, except that the version in the origin field MUST | |
| 379 // increment by one from the previous SDP. | |
| 380 | |
| 381 // Just increase the version number by one each time when a new offer | |
| 382 // is created regardless if it's identical to the previous one or not. | |
| 383 // The |session_version_| is a uint64_t, the wrap around should not happen. | |
| 384 ASSERT(session_version_ + 1 > session_version_); | |
| 385 JsepSessionDescription* offer(new JsepSessionDescription( | |
| 386 JsepSessionDescription::kOffer)); | |
| 387 if (!offer->Initialize(desc, session_id_, | |
| 388 rtc::ToString(session_version_++))) { | |
| 389 delete offer; | |
| 390 PostCreateSessionDescriptionFailed(request.observer, | |
| 391 "Failed to initialize the offer."); | |
| 392 return; | |
| 393 } | |
| 394 if (session_->local_description() && | |
| 395 !request.options.audio_transport_options.ice_restart && | |
| 396 !request.options.video_transport_options.ice_restart && | |
| 397 !request.options.data_transport_options.ice_restart) { | |
| 398 // Include all local ice candidates in the SessionDescription unless | |
| 399 // the an ice restart has been requested. | |
| 400 CopyCandidatesFromSessionDescription(session_->local_description(), offer); | |
| 401 } | |
| 402 PostCreateSessionDescriptionSucceeded(request.observer, offer); | |
| 403 } | |
| 404 | |
| 405 void WebRtcSessionDescriptionFactory::InternalCreateAnswer( | |
| 406 CreateSessionDescriptionRequest request) { | |
| 407 // According to http://tools.ietf.org/html/rfc5245#section-9.2.1.1 | |
| 408 // an answer should also contain new ice ufrag and password if an offer has | |
| 409 // been received with new ufrag and password. | |
| 410 request.options.audio_transport_options.ice_restart = | |
| 411 session_->IceRestartPending(); | |
| 412 request.options.video_transport_options.ice_restart = | |
| 413 session_->IceRestartPending(); | |
| 414 request.options.data_transport_options.ice_restart = | |
| 415 session_->IceRestartPending(); | |
| 416 // We should pass current ssl role to the transport description factory, if | |
| 417 // there is already an existing ongoing session. | |
| 418 rtc::SSLRole ssl_role; | |
| 419 if (session_->GetSslRole(session_->voice_channel(), &ssl_role)) { | |
| 420 request.options.audio_transport_options.prefer_passive_role = | |
| 421 (rtc::SSL_SERVER == ssl_role); | |
| 422 } | |
| 423 if (session_->GetSslRole(session_->video_channel(), &ssl_role)) { | |
| 424 request.options.video_transport_options.prefer_passive_role = | |
| 425 (rtc::SSL_SERVER == ssl_role); | |
| 426 } | |
| 427 if (session_->GetSslRole(session_->data_channel(), &ssl_role)) { | |
| 428 request.options.data_transport_options.prefer_passive_role = | |
| 429 (rtc::SSL_SERVER == ssl_role); | |
| 430 } | |
| 431 | |
| 432 cricket::SessionDescription* desc(session_desc_factory_.CreateAnswer( | |
| 433 session_->remote_description() | |
| 434 ? session_->remote_description()->description() | |
| 435 : nullptr, | |
| 436 request.options, session_->local_description() | |
| 437 ? session_->local_description()->description() | |
| 438 : nullptr)); | |
| 439 // RFC 3264 | |
| 440 // If the answer is different from the offer in any way (different IP | |
| 441 // addresses, ports, etc.), the origin line MUST be different in the answer. | |
| 442 // In that case, the version number in the "o=" line of the answer is | |
| 443 // unrelated to the version number in the o line of the offer. | |
| 444 // Get a new version number by increasing the |session_version_answer_|. | |
| 445 // The |session_version_| is a uint64_t, the wrap around should not happen. | |
| 446 ASSERT(session_version_ + 1 > session_version_); | |
| 447 JsepSessionDescription* answer(new JsepSessionDescription( | |
| 448 JsepSessionDescription::kAnswer)); | |
| 449 if (!answer->Initialize(desc, session_id_, | |
| 450 rtc::ToString(session_version_++))) { | |
| 451 delete answer; | |
| 452 PostCreateSessionDescriptionFailed(request.observer, | |
| 453 "Failed to initialize the answer."); | |
| 454 return; | |
| 455 } | |
| 456 if (session_->local_description() && | |
| 457 !request.options.audio_transport_options.ice_restart && | |
| 458 !request.options.video_transport_options.ice_restart && | |
| 459 !request.options.data_transport_options.ice_restart) { | |
| 460 // Include all local ice candidates in the SessionDescription unless | |
| 461 // the remote peer has requested an ice restart. | |
| 462 CopyCandidatesFromSessionDescription(session_->local_description(), answer); | |
| 463 } | |
| 464 session_->ResetIceRestartLatch(); | |
| 465 PostCreateSessionDescriptionSucceeded(request.observer, answer); | |
| 466 } | |
| 467 | |
| 468 void WebRtcSessionDescriptionFactory::FailPendingRequests( | |
| 469 const std::string& reason) { | |
| 470 ASSERT(signaling_thread_->IsCurrent()); | |
| 471 while (!create_session_description_requests_.empty()) { | |
| 472 const CreateSessionDescriptionRequest& request = | |
| 473 create_session_description_requests_.front(); | |
| 474 PostCreateSessionDescriptionFailed(request.observer, | |
| 475 ((request.type == CreateSessionDescriptionRequest::kOffer) ? | |
| 476 "CreateOffer" : "CreateAnswer") + reason); | |
| 477 create_session_description_requests_.pop(); | |
| 478 } | |
| 479 } | |
| 480 | |
| 481 void WebRtcSessionDescriptionFactory::PostCreateSessionDescriptionFailed( | |
| 482 CreateSessionDescriptionObserver* observer, const std::string& error) { | |
| 483 CreateSessionDescriptionMsg* msg = new CreateSessionDescriptionMsg(observer); | |
| 484 msg->error = error; | |
| 485 signaling_thread_->Post(this, MSG_CREATE_SESSIONDESCRIPTION_FAILED, msg); | |
| 486 LOG(LS_ERROR) << "Create SDP failed: " << error; | |
| 487 } | |
| 488 | |
| 489 void WebRtcSessionDescriptionFactory::PostCreateSessionDescriptionSucceeded( | |
| 490 CreateSessionDescriptionObserver* observer, | |
| 491 SessionDescriptionInterface* description) { | |
| 492 CreateSessionDescriptionMsg* msg = new CreateSessionDescriptionMsg(observer); | |
| 493 msg->description.reset(description); | |
| 494 signaling_thread_->Post(this, MSG_CREATE_SESSIONDESCRIPTION_SUCCESS, msg); | |
| 495 } | |
| 496 | |
| 497 void WebRtcSessionDescriptionFactory::OnIdentityRequestFailed(int error) { | |
| 498 ASSERT(signaling_thread_->IsCurrent()); | |
| 499 | |
| 500 LOG(LS_ERROR) << "Async identity request failed: error = " << error; | |
| 501 certificate_request_state_ = CERTIFICATE_FAILED; | |
| 502 | |
| 503 FailPendingRequests(kFailedDueToIdentityFailed); | |
| 504 } | |
| 505 | |
| 506 void WebRtcSessionDescriptionFactory::SetCertificate( | |
| 507 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) { | |
| 508 RTC_DCHECK(certificate); | |
| 509 LOG(LS_VERBOSE) << "Setting new certificate"; | |
| 510 | |
| 511 certificate_request_state_ = CERTIFICATE_SUCCEEDED; | |
| 512 SignalCertificateReady(certificate); | |
| 513 | |
| 514 transport_desc_factory_.set_certificate(certificate); | |
| 515 transport_desc_factory_.set_secure(cricket::SEC_ENABLED); | |
| 516 | |
| 517 while (!create_session_description_requests_.empty()) { | |
| 518 if (create_session_description_requests_.front().type == | |
| 519 CreateSessionDescriptionRequest::kOffer) { | |
| 520 InternalCreateOffer(create_session_description_requests_.front()); | |
| 521 } else { | |
| 522 InternalCreateAnswer(create_session_description_requests_.front()); | |
| 523 } | |
| 524 create_session_description_requests_.pop(); | |
| 525 } | |
| 526 } | |
| 527 } // namespace webrtc | |
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Chromium Code Reviews
Issue 1610243002:
Move talk/app/webrtc to webrtc/api (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master