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| 1 /* | |
| 2 * Copyright 2009 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 #ifndef WEBRTC_P2P_BASE_FAKESESSION_H_ | |
| 12 #define WEBRTC_P2P_BASE_FAKESESSION_H_ | |
| 13 | |
| 14 #include <map> | |
| 15 #include <string> | |
| 16 #include <vector> | |
| 17 | |
| 18 #include "webrtc/p2p/base/session.h" | |
| 19 #include "webrtc/p2p/base/transport.h" | |
| 20 #include "webrtc/p2p/base/transportchannel.h" | |
| 21 #include "webrtc/p2p/base/transportchannelimpl.h" | |
| 22 #include "webrtc/base/buffer.h" | |
| 23 #include "webrtc/base/fakesslidentity.h" | |
| 24 #include "webrtc/base/messagequeue.h" | |
| 25 #include "webrtc/base/sigslot.h" | |
| 26 #include "webrtc/base/sslfingerprint.h" | |
| 27 | |
| 28 namespace cricket { | |
| 29 | |
| 30 class FakeTransport; | |
| 31 | |
| 32 struct PacketMessageData : public rtc::MessageData { | |
| 33 PacketMessageData(const char* data, size_t len) : packet(data, len) { | |
| 34 } | |
| 35 rtc::Buffer packet; | |
| 36 }; | |
| 37 | |
| 38 // Fake transport channel class, which can be passed to anything that needs a | |
| 39 // transport channel. Can be informed of another FakeTransportChannel via | |
| 40 // SetDestination. | |
| 41 // TODO(hbos): Move implementation to .cc file, this and other classes in file. | |
| 42 class FakeTransportChannel : public TransportChannelImpl, | |
| 43 public rtc::MessageHandler { | |
| 44 public: | |
| 45 explicit FakeTransportChannel(Transport* transport, | |
| 46 const std::string& content_name, | |
| 47 int component) | |
| 48 : TransportChannelImpl(content_name, component), | |
| 49 transport_(transport), | |
| 50 dest_(NULL), | |
| 51 state_(STATE_INIT), | |
| 52 async_(false), | |
| 53 identity_(NULL), | |
| 54 do_dtls_(false), | |
| 55 role_(ICEROLE_UNKNOWN), | |
| 56 tiebreaker_(0), | |
| 57 remote_ice_mode_(ICEMODE_FULL), | |
| 58 dtls_fingerprint_("", NULL, 0), | |
| 59 ssl_role_(rtc::SSL_CLIENT), | |
| 60 connection_count_(0) { | |
| 61 } | |
| 62 ~FakeTransportChannel() { | |
| 63 Reset(); | |
| 64 } | |
| 65 | |
| 66 uint64 IceTiebreaker() const { return tiebreaker_; } | |
| 67 IceMode remote_ice_mode() const { return remote_ice_mode_; } | |
| 68 const std::string& ice_ufrag() const { return ice_ufrag_; } | |
| 69 const std::string& ice_pwd() const { return ice_pwd_; } | |
| 70 const std::string& remote_ice_ufrag() const { return remote_ice_ufrag_; } | |
| 71 const std::string& remote_ice_pwd() const { return remote_ice_pwd_; } | |
| 72 const rtc::SSLFingerprint& dtls_fingerprint() const { | |
| 73 return dtls_fingerprint_; | |
| 74 } | |
| 75 | |
| 76 void SetAsync(bool async) { | |
| 77 async_ = async; | |
| 78 } | |
| 79 | |
| 80 virtual Transport* GetTransport() { | |
| 81 return transport_; | |
| 82 } | |
| 83 | |
| 84 virtual TransportChannelState GetState() const { | |
| 85 if (connection_count_ == 0) { | |
| 86 return TransportChannelState::STATE_FAILED; | |
| 87 } | |
| 88 | |
| 89 if (connection_count_ == 1) { | |
| 90 return TransportChannelState::STATE_COMPLETED; | |
| 91 } | |
| 92 | |
| 93 return TransportChannelState::STATE_FAILED; | |
| 94 } | |
| 95 | |
| 96 virtual void SetIceRole(IceRole role) { role_ = role; } | |
| 97 virtual IceRole GetIceRole() const { return role_; } | |
| 98 virtual void SetIceTiebreaker(uint64 tiebreaker) { tiebreaker_ = tiebreaker; } | |
| 99 virtual void SetIceCredentials(const std::string& ice_ufrag, | |
| 100 const std::string& ice_pwd) { | |
| 101 ice_ufrag_ = ice_ufrag; | |
| 102 ice_pwd_ = ice_pwd; | |
| 103 } | |
| 104 virtual void SetRemoteIceCredentials(const std::string& ice_ufrag, | |
| 105 const std::string& ice_pwd) { | |
| 106 remote_ice_ufrag_ = ice_ufrag; | |
| 107 remote_ice_pwd_ = ice_pwd; | |
| 108 } | |
| 109 | |
| 110 virtual void SetRemoteIceMode(IceMode mode) { remote_ice_mode_ = mode; } | |
| 111 virtual bool SetRemoteFingerprint(const std::string& alg, const uint8* digest, | |
| 112 size_t digest_len) { | |
| 113 dtls_fingerprint_ = rtc::SSLFingerprint(alg, digest, digest_len); | |
| 114 return true; | |
| 115 } | |
| 116 virtual bool SetSslRole(rtc::SSLRole role) { | |
| 117 ssl_role_ = role; | |
| 118 return true; | |
| 119 } | |
| 120 virtual bool GetSslRole(rtc::SSLRole* role) const { | |
| 121 *role = ssl_role_; | |
| 122 return true; | |
| 123 } | |
| 124 | |
| 125 virtual void Connect() { | |
| 126 if (state_ == STATE_INIT) { | |
| 127 state_ = STATE_CONNECTING; | |
| 128 } | |
| 129 } | |
| 130 virtual void Reset() { | |
| 131 if (state_ != STATE_INIT) { | |
| 132 state_ = STATE_INIT; | |
| 133 if (dest_) { | |
| 134 dest_->state_ = STATE_INIT; | |
| 135 dest_->dest_ = NULL; | |
| 136 dest_ = NULL; | |
| 137 } | |
| 138 } | |
| 139 } | |
| 140 | |
| 141 void SetWritable(bool writable) { | |
| 142 set_writable(writable); | |
| 143 } | |
| 144 | |
| 145 void SetDestination(FakeTransportChannel* dest) { | |
| 146 if (state_ == STATE_CONNECTING && dest) { | |
| 147 // This simulates the delivery of candidates. | |
| 148 dest_ = dest; | |
| 149 dest_->dest_ = this; | |
| 150 if (identity_ && dest_->identity_) { | |
| 151 do_dtls_ = true; | |
| 152 dest_->do_dtls_ = true; | |
| 153 NegotiateSrtpCiphers(); | |
| 154 } | |
| 155 state_ = STATE_CONNECTED; | |
| 156 dest_->state_ = STATE_CONNECTED; | |
| 157 set_writable(true); | |
| 158 dest_->set_writable(true); | |
| 159 } else if (state_ == STATE_CONNECTED && !dest) { | |
| 160 // Simulates loss of connectivity, by asymmetrically forgetting dest_. | |
| 161 dest_ = NULL; | |
| 162 state_ = STATE_CONNECTING; | |
| 163 set_writable(false); | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 void SetConnectionCount(size_t connection_count) { | |
| 168 size_t old_connection_count = connection_count_; | |
| 169 connection_count_ = connection_count; | |
| 170 if (connection_count_ < old_connection_count) | |
| 171 SignalConnectionRemoved(this); | |
| 172 } | |
| 173 | |
| 174 void SetReceiving(bool receiving) { | |
| 175 set_receiving(receiving); | |
| 176 } | |
| 177 | |
| 178 void SetReceivingTimeout(int timeout) override {} | |
| 179 | |
| 180 virtual int SendPacket(const char* data, size_t len, | |
| 181 const rtc::PacketOptions& options, int flags) { | |
| 182 if (state_ != STATE_CONNECTED) { | |
| 183 return -1; | |
| 184 } | |
| 185 | |
| 186 if (flags != PF_SRTP_BYPASS && flags != 0) { | |
| 187 return -1; | |
| 188 } | |
| 189 | |
| 190 PacketMessageData* packet = new PacketMessageData(data, len); | |
| 191 if (async_) { | |
| 192 rtc::Thread::Current()->Post(this, 0, packet); | |
| 193 } else { | |
| 194 rtc::Thread::Current()->Send(this, 0, packet); | |
| 195 } | |
| 196 return static_cast<int>(len); | |
| 197 } | |
| 198 virtual int SetOption(rtc::Socket::Option opt, int value) { | |
| 199 return true; | |
| 200 } | |
| 201 virtual bool GetOption(rtc::Socket::Option opt, int* value) { | |
| 202 return true; | |
| 203 } | |
| 204 virtual int GetError() { | |
| 205 return 0; | |
| 206 } | |
| 207 | |
| 208 virtual void OnSignalingReady() { | |
| 209 } | |
| 210 virtual void OnCandidate(const Candidate& candidate) { | |
| 211 } | |
| 212 | |
| 213 virtual void OnMessage(rtc::Message* msg) { | |
| 214 PacketMessageData* data = static_cast<PacketMessageData*>( | |
| 215 msg->pdata); | |
| 216 dest_->SignalReadPacket(dest_, data->packet.data<char>(), | |
| 217 data->packet.size(), rtc::CreatePacketTime(0), 0); | |
| 218 delete data; | |
| 219 } | |
| 220 | |
| 221 bool SetLocalIdentity(rtc::SSLIdentity* identity) { | |
| 222 identity_ = identity; | |
| 223 return true; | |
| 224 } | |
| 225 | |
| 226 | |
| 227 void SetRemoteCertificate(rtc::FakeSSLCertificate* cert) { | |
| 228 remote_cert_ = cert; | |
| 229 } | |
| 230 | |
| 231 virtual bool IsDtlsActive() const { | |
| 232 return do_dtls_; | |
| 233 } | |
| 234 | |
| 235 virtual bool SetSrtpCiphers(const std::vector<std::string>& ciphers) { | |
| 236 srtp_ciphers_ = ciphers; | |
| 237 return true; | |
| 238 } | |
| 239 | |
| 240 virtual bool GetSrtpCipher(std::string* cipher) { | |
| 241 if (!chosen_srtp_cipher_.empty()) { | |
| 242 *cipher = chosen_srtp_cipher_; | |
| 243 return true; | |
| 244 } | |
| 245 return false; | |
| 246 } | |
| 247 | |
| 248 virtual bool GetSslCipher(std::string* cipher) { | |
| 249 return false; | |
| 250 } | |
| 251 | |
| 252 virtual bool GetLocalIdentity(rtc::SSLIdentity** identity) const { | |
| 253 if (!identity_) | |
| 254 return false; | |
| 255 | |
| 256 *identity = identity_->GetReference(); | |
| 257 return true; | |
| 258 } | |
| 259 | |
| 260 virtual bool GetRemoteCertificate(rtc::SSLCertificate** cert) const { | |
| 261 if (!remote_cert_) | |
| 262 return false; | |
| 263 | |
| 264 *cert = remote_cert_->GetReference(); | |
| 265 return true; | |
| 266 } | |
| 267 | |
| 268 virtual bool ExportKeyingMaterial(const std::string& label, | |
| 269 const uint8* context, | |
| 270 size_t context_len, | |
| 271 bool use_context, | |
| 272 uint8* result, | |
| 273 size_t result_len) { | |
| 274 if (!chosen_srtp_cipher_.empty()) { | |
| 275 memset(result, 0xff, result_len); | |
| 276 return true; | |
| 277 } | |
| 278 | |
| 279 return false; | |
| 280 } | |
| 281 | |
| 282 virtual void NegotiateSrtpCiphers() { | |
| 283 for (std::vector<std::string>::const_iterator it1 = srtp_ciphers_.begin(); | |
| 284 it1 != srtp_ciphers_.end(); ++it1) { | |
| 285 for (std::vector<std::string>::const_iterator it2 = | |
| 286 dest_->srtp_ciphers_.begin(); | |
| 287 it2 != dest_->srtp_ciphers_.end(); ++it2) { | |
| 288 if (*it1 == *it2) { | |
| 289 chosen_srtp_cipher_ = *it1; | |
| 290 dest_->chosen_srtp_cipher_ = *it2; | |
| 291 return; | |
| 292 } | |
| 293 } | |
| 294 } | |
| 295 } | |
| 296 | |
| 297 bool GetStats(ConnectionInfos* infos) override { | |
| 298 ConnectionInfo info; | |
| 299 infos->clear(); | |
| 300 infos->push_back(info); | |
| 301 return true; | |
| 302 } | |
| 303 | |
| 304 private: | |
| 305 enum State { STATE_INIT, STATE_CONNECTING, STATE_CONNECTED }; | |
| 306 Transport* transport_; | |
| 307 FakeTransportChannel* dest_; | |
| 308 State state_; | |
| 309 bool async_; | |
| 310 rtc::SSLIdentity* identity_; | |
| 311 rtc::FakeSSLCertificate* remote_cert_; | |
| 312 bool do_dtls_; | |
| 313 std::vector<std::string> srtp_ciphers_; | |
| 314 std::string chosen_srtp_cipher_; | |
| 315 IceRole role_; | |
| 316 uint64 tiebreaker_; | |
| 317 std::string ice_ufrag_; | |
| 318 std::string ice_pwd_; | |
| 319 std::string remote_ice_ufrag_; | |
| 320 std::string remote_ice_pwd_; | |
| 321 IceMode remote_ice_mode_; | |
| 322 rtc::SSLFingerprint dtls_fingerprint_; | |
| 323 rtc::SSLRole ssl_role_; | |
| 324 size_t connection_count_; | |
| 325 }; | |
| 326 | |
| 327 // Fake transport class, which can be passed to anything that needs a Transport. | |
| 328 // Can be informed of another FakeTransport via SetDestination (low-tech way | |
| 329 // of doing candidates) | |
| 330 class FakeTransport : public Transport { | |
| 331 public: | |
| 332 typedef std::map<int, FakeTransportChannel*> ChannelMap; | |
| 333 FakeTransport(rtc::Thread* signaling_thread, | |
| 334 rtc::Thread* worker_thread, | |
| 335 const std::string& content_name, | |
| 336 PortAllocator* alllocator = nullptr) | |
| 337 : Transport(signaling_thread, worker_thread, | |
| 338 content_name, nullptr), | |
| 339 dest_(nullptr), | |
| 340 async_(false) { | |
| 341 } | |
| 342 ~FakeTransport() { | |
| 343 DestroyAllChannels(); | |
| 344 } | |
| 345 | |
| 346 const ChannelMap& channels() const { return channels_; } | |
| 347 | |
| 348 void SetAsync(bool async) { async_ = async; } | |
| 349 void SetDestination(FakeTransport* dest) { | |
| 350 dest_ = dest; | |
| 351 for (ChannelMap::iterator it = channels_.begin(); it != channels_.end(); | |
| 352 ++it) { | |
| 353 // TODO(hbos): SetLocalCertificate | |
| 354 it->second->SetLocalIdentity( | |
| 355 certificate_ ? certificate_->identity() : nullptr); | |
| 356 SetChannelDestination(it->first, it->second); | |
| 357 } | |
| 358 } | |
| 359 | |
| 360 void SetWritable(bool writable) { | |
| 361 for (ChannelMap::iterator it = channels_.begin(); it != channels_.end(); | |
| 362 ++it) { | |
| 363 it->second->SetWritable(writable); | |
| 364 } | |
| 365 } | |
| 366 | |
| 367 void set_certificate( | |
| 368 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) { | |
| 369 certificate_ = certificate; | |
| 370 } | |
| 371 | |
| 372 using Transport::local_description; | |
| 373 using Transport::remote_description; | |
| 374 | |
| 375 protected: | |
| 376 virtual TransportChannelImpl* CreateTransportChannel(int component) { | |
| 377 if (channels_.find(component) != channels_.end()) { | |
| 378 return NULL; | |
| 379 } | |
| 380 FakeTransportChannel* channel = | |
| 381 new FakeTransportChannel(this, content_name(), component); | |
| 382 channel->SetAsync(async_); | |
| 383 SetChannelDestination(component, channel); | |
| 384 channels_[component] = channel; | |
| 385 return channel; | |
| 386 } | |
| 387 virtual void DestroyTransportChannel(TransportChannelImpl* channel) { | |
| 388 channels_.erase(channel->component()); | |
| 389 delete channel; | |
| 390 } | |
| 391 void SetCertificate_w( | |
| 392 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) override { | |
| 393 certificate_ = certificate; | |
| 394 } | |
| 395 bool GetCertificate_w( | |
| 396 rtc::scoped_refptr<rtc::RTCCertificate>* certificate) override { | |
| 397 if (!certificate_) | |
| 398 return false; | |
| 399 | |
| 400 *certificate = certificate_; | |
| 401 return true; | |
| 402 } | |
| 403 | |
| 404 private: | |
| 405 FakeTransportChannel* GetFakeChannel(int component) { | |
| 406 ChannelMap::iterator it = channels_.find(component); | |
| 407 return (it != channels_.end()) ? it->second : NULL; | |
| 408 } | |
| 409 void SetChannelDestination(int component, | |
| 410 FakeTransportChannel* channel) { | |
| 411 FakeTransportChannel* dest_channel = NULL; | |
| 412 if (dest_) { | |
| 413 dest_channel = dest_->GetFakeChannel(component); | |
| 414 if (dest_channel) { | |
| 415 // TODO(hbos): SetLocalCertificate | |
| 416 dest_channel->SetLocalIdentity( | |
| 417 dest_->certificate_ ? dest_->certificate_->identity() : nullptr); | |
| 418 } | |
| 419 } | |
| 420 channel->SetDestination(dest_channel); | |
| 421 } | |
| 422 | |
| 423 // Note, this is distinct from the Channel map owned by Transport. | |
| 424 // This map just tracks the FakeTransportChannels created by this class. | |
| 425 ChannelMap channels_; | |
| 426 FakeTransport* dest_; | |
| 427 bool async_; | |
| 428 rtc::scoped_refptr<rtc::RTCCertificate> certificate_; | |
| 429 }; | |
| 430 | |
| 431 // Fake session class, which can be passed into a BaseChannel object for | |
| 432 // test purposes. Can be connected to other FakeSessions via Connect(). | |
| 433 class FakeSession : public BaseSession { | |
| 434 public: | |
| 435 explicit FakeSession() | |
| 436 : BaseSession(rtc::Thread::Current(), | |
| 437 rtc::Thread::Current(), | |
| 438 NULL, "", "", true), | |
| 439 fail_create_channel_(false) { | |
| 440 } | |
| 441 explicit FakeSession(bool initiator) | |
| 442 : BaseSession(rtc::Thread::Current(), | |
| 443 rtc::Thread::Current(), | |
| 444 NULL, "", "", initiator), | |
| 445 fail_create_channel_(false) { | |
| 446 } | |
| 447 FakeSession(rtc::Thread* worker_thread, bool initiator) | |
| 448 : BaseSession(rtc::Thread::Current(), | |
| 449 worker_thread, | |
| 450 NULL, "", "", initiator), | |
| 451 fail_create_channel_(false) { | |
| 452 } | |
| 453 | |
| 454 FakeTransport* GetTransport(const std::string& content_name) { | |
| 455 return static_cast<FakeTransport*>( | |
| 456 BaseSession::GetTransport(content_name)); | |
| 457 } | |
| 458 | |
| 459 void Connect(FakeSession* dest) { | |
| 460 // Simulate the exchange of candidates. | |
| 461 CompleteNegotiation(); | |
| 462 dest->CompleteNegotiation(); | |
| 463 for (TransportMap::const_iterator it = transport_proxies().begin(); | |
| 464 it != transport_proxies().end(); ++it) { | |
| 465 static_cast<FakeTransport*>(it->second->impl())->SetDestination( | |
| 466 dest->GetTransport(it->first)); | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 virtual TransportChannel* CreateChannel( | |
| 471 const std::string& content_name, | |
| 472 int component) { | |
| 473 if (fail_create_channel_) { | |
| 474 return NULL; | |
| 475 } | |
| 476 return BaseSession::CreateChannel(content_name, component); | |
| 477 } | |
| 478 | |
| 479 void set_fail_channel_creation(bool fail_channel_creation) { | |
| 480 fail_create_channel_ = fail_channel_creation; | |
| 481 } | |
| 482 | |
| 483 // TODO: Hoist this into Session when we re-work the Session code. | |
| 484 void set_ssl_rtccertificate( | |
| 485 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) { | |
| 486 for (TransportMap::const_iterator it = transport_proxies().begin(); | |
| 487 it != transport_proxies().end(); ++it) { | |
| 488 // We know that we have a FakeTransport* | |
| 489 | |
| 490 static_cast<FakeTransport*>(it->second->impl())->set_certificate | |
| 491 (certificate); | |
| 492 } | |
| 493 } | |
| 494 | |
| 495 protected: | |
| 496 virtual Transport* CreateTransport(const std::string& content_name) { | |
| 497 return new FakeTransport(signaling_thread(), worker_thread(), content_name); | |
| 498 } | |
| 499 | |
| 500 void CompleteNegotiation() { | |
| 501 for (TransportMap::const_iterator it = transport_proxies().begin(); | |
| 502 it != transport_proxies().end(); ++it) { | |
| 503 it->second->CompleteNegotiation(); | |
| 504 it->second->ConnectChannels(); | |
| 505 } | |
| 506 } | |
| 507 | |
| 508 private: | |
| 509 bool fail_create_channel_; | |
| 510 }; | |
| 511 | |
| 512 } // namespace cricket | |
| 513 | |
| 514 #endif // WEBRTC_P2P_BASE_FAKESESSION_H_ | |
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Chromium Code Reviews
Issue 1246913005:
TransportController refactoring (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master