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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libwebrtc/pc/webrtc_sdp_unittest.cc | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/pc/webrtc_sdp_unittest.cc | 4982 |
1 files changed, 4982 insertions, 0 deletions
diff --git a/third_party/libwebrtc/pc/webrtc_sdp_unittest.cc b/third_party/libwebrtc/pc/webrtc_sdp_unittest.cc new file mode 100644 index 0000000000..9f1cfc9c96 --- /dev/null +++ b/third_party/libwebrtc/pc/webrtc_sdp_unittest.cc @@ -0,0 +1,4982 @@ +/* + * Copyright 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <stdio.h> +#include <string.h> + +#include <cstdint> +#include <map> +#include <memory> +#include <sstream> +#include <string> +#include <utility> +#include <vector> + +#include "absl/algorithm/container.h" +#include "absl/memory/memory.h" +#include "absl/strings/str_replace.h" +#include "absl/strings/string_view.h" +#include "absl/types/optional.h" +#include "api/array_view.h" +#include "api/crypto_params.h" +#include "api/jsep_session_description.h" +#include "api/media_types.h" +#include "api/rtp_parameters.h" +#include "api/rtp_transceiver_direction.h" +#include "media/base/codec.h" +#include "media/base/media_constants.h" +#include "media/base/rid_description.h" +#include "media/base/stream_params.h" +#include "p2p/base/p2p_constants.h" +#include "p2p/base/port.h" +#include "p2p/base/transport_description.h" +#include "p2p/base/transport_info.h" +#include "pc/media_protocol_names.h" +#include "pc/media_session.h" +#include "pc/session_description.h" +#include "pc/simulcast_description.h" +#include "rtc_base/checks.h" +#include "rtc_base/message_digest.h" +#include "rtc_base/socket_address.h" +#include "rtc_base/ssl_fingerprint.h" +#include "rtc_base/string_encode.h" +#include "test/gmock.h" +#include "test/gtest.h" + +#ifdef WEBRTC_ANDROID +#include "pc/test/android_test_initializer.h" +#endif +#include "pc/webrtc_sdp.h" + +using cricket::AudioCodec; +using cricket::AudioContentDescription; +using cricket::Candidate; +using cricket::ContentGroup; +using cricket::ContentInfo; +using cricket::CryptoParams; +using cricket::ICE_CANDIDATE_COMPONENT_RTCP; +using cricket::ICE_CANDIDATE_COMPONENT_RTP; +using cricket::kFecSsrcGroupSemantics; +using cricket::LOCAL_PORT_TYPE; +using cricket::MediaProtocolType; +using cricket::RELAY_PORT_TYPE; +using cricket::RidDescription; +using cricket::RidDirection; +using cricket::SctpDataContentDescription; +using cricket::SessionDescription; +using cricket::SimulcastDescription; +using cricket::SimulcastLayer; +using cricket::StreamParams; +using cricket::STUN_PORT_TYPE; +using cricket::TransportDescription; +using cricket::TransportInfo; +using cricket::VideoCodec; +using cricket::VideoContentDescription; +using ::testing::ElementsAre; +using ::testing::Field; +using webrtc::IceCandidateCollection; +using webrtc::IceCandidateInterface; +using webrtc::JsepIceCandidate; +using webrtc::JsepSessionDescription; +using webrtc::RtpExtension; +using webrtc::RtpTransceiverDirection; +using webrtc::SdpParseError; +using webrtc::SdpType; +using webrtc::SessionDescriptionInterface; + +typedef std::vector<AudioCodec> AudioCodecs; +typedef std::vector<Candidate> Candidates; + +static const uint32_t kDefaultSctpPort = 5000; +static const uint16_t kUnusualSctpPort = 9556; +static const char kSessionTime[] = "t=0 0\r\n"; +static const uint32_t kCandidatePriority = 2130706432U; // pref = 1.0 +static const char kAttributeIceUfragVoice[] = "a=ice-ufrag:ufrag_voice\r\n"; +static const char kAttributeIcePwdVoice[] = "a=ice-pwd:pwd_voice\r\n"; +static const char kAttributeIceUfragVideo[] = "a=ice-ufrag:ufrag_video\r\n"; +static const char kAttributeIcePwdVideo[] = "a=ice-pwd:pwd_video\r\n"; +static const uint32_t kCandidateGeneration = 2; +static const char kCandidateFoundation1[] = "a0+B/1"; +static const char kCandidateFoundation2[] = "a0+B/2"; +static const char kCandidateFoundation3[] = "a0+B/3"; +static const char kCandidateFoundation4[] = "a0+B/4"; +static const char kAttributeCryptoVoice[] = + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n"; +static const char kAttributeCryptoVideo[] = + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"; +static const char kFingerprint[] = + "a=fingerprint:sha-1 " + "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n"; +static const char kExtmapAllowMixed[] = "a=extmap-allow-mixed\r\n"; +static const int kExtmapId = 1; +static const char kExtmapUri[] = "http://example.com/082005/ext.htm#ttime"; +static const char kExtmap[] = + "a=extmap:1 http://example.com/082005/ext.htm#ttime\r\n"; +static const char kExtmapWithDirectionAndAttribute[] = + "a=extmap:1/sendrecv http://example.com/082005/ext.htm#ttime a1 a2\r\n"; +static const char kExtmapWithDirectionAndAttributeEncrypted[] = + "a=extmap:1/sendrecv urn:ietf:params:rtp-hdrext:encrypt " + "http://example.com/082005/ext.htm#ttime a1 a2\r\n"; + +static const uint8_t kIdentityDigest[] = { + 0x4A, 0xAD, 0xB9, 0xB1, 0x3F, 0x82, 0x18, 0x3B, 0x54, 0x02, + 0x12, 0xDF, 0x3E, 0x5D, 0x49, 0x6B, 0x19, 0xE5, 0x7C, 0xAB}; + +static const char kDtlsSctp[] = "DTLS/SCTP"; +static const char kUdpDtlsSctp[] = "UDP/DTLS/SCTP"; +static const char kTcpDtlsSctp[] = "TCP/DTLS/SCTP"; + +struct CodecParams { + int max_ptime; + int ptime; + int min_ptime; + int sprop_stereo; + int stereo; + int useinband; + int maxaveragebitrate; +}; + +// TODO(deadbeef): In these reference strings, use "a=fingerprint" by default +// instead of "a=crypto", and have an explicit test for adding "a=crypto". +// Currently it's the other way around. + +// Reference sdp string +static const char kSdpFullString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=extmap-allow-mixed\r\n" + "a=msid-semantic: WMS local_stream_1\r\n" + "m=audio 2345 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 74.125.127.126\r\n" + "a=rtcp:2347 IN IP4 74.125.127.126\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " + "generation 2\r\n" + "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " + "raddr 192.168.1.5 rport 2346 " + "generation 2\r\n" + "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " + "raddr 192.168.1.5 rport 2348 " + "generation 2\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:1 cname:stream_1_cname\r\n" + "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n" + "m=video 3457 RTP/SAVPF 120\r\n" + "c=IN IP4 74.125.224.39\r\n" + "a=rtcp:3456 IN IP4 74.125.224.39\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " + "generation 2\r\n" + "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " + "generation 2\r\n" + "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " + "generation 2\r\n" + "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" + "a=mid:video_content_name\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc-group:FEC 2 3\r\n" + "a=ssrc:2 cname:stream_1_cname\r\n" + "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n" + "a=ssrc:3 cname:stream_1_cname\r\n" + "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n"; + +// SDP reference string without the candidates. +static const char kSdpString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=extmap-allow-mixed\r\n" + "a=msid-semantic: WMS local_stream_1\r\n" + "m=audio 9 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:1 cname:stream_1_cname\r\n" + "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n" + "m=video 9 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" + "a=mid:video_content_name\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc-group:FEC 2 3\r\n" + "a=ssrc:2 cname:stream_1_cname\r\n" + "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n" + "a=ssrc:3 cname:stream_1_cname\r\n" + "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n"; + +// draft-ietf-mmusic-sctp-sdp-03 +static const char kSdpSctpDataChannelString[] = + "m=application 9 UDP/DTLS/SCTP 5000\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_data\r\n" + "a=ice-pwd:pwd_data\r\n" + "a=mid:data_content_name\r\n" + "a=sctpmap:5000 webrtc-datachannel 1024\r\n"; + +// draft-ietf-mmusic-sctp-sdp-12 +// Note - this is invalid per draft-ietf-mmusic-sctp-sdp-26, +// since the separator after "sctp-port" needs to be a colon. +static const char kSdpSctpDataChannelStringWithSctpPort[] = + "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n" + "a=sctp-port 5000\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_data\r\n" + "a=ice-pwd:pwd_data\r\n" + "a=mid:data_content_name\r\n"; + +// draft-ietf-mmusic-sctp-sdp-26 +static const char kSdpSctpDataChannelStringWithSctpColonPort[] = + "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n" + "a=sctp-port:5000\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_data\r\n" + "a=ice-pwd:pwd_data\r\n" + "a=mid:data_content_name\r\n"; + +static const char kSdpSctpDataChannelWithCandidatesString[] = + "m=application 2345 UDP/DTLS/SCTP 5000\r\n" + "c=IN IP4 74.125.127.126\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " + "generation 2\r\n" + "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " + "raddr 192.168.1.5 rport 2346 " + "generation 2\r\n" + "a=ice-ufrag:ufrag_data\r\n" + "a=ice-pwd:pwd_data\r\n" + "a=mid:data_content_name\r\n" + "a=sctpmap:5000 webrtc-datachannel 1024\r\n"; + +static const char kSdpConferenceString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=msid-semantic: WMS\r\n" + "m=audio 9 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=x-google-flag:conference\r\n" + "m=video 9 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=x-google-flag:conference\r\n"; + +static const char kSdpSessionString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=msid-semantic: WMS local_stream\r\n"; + +static const char kSdpAudioString[] = + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=sendrecv\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=ssrc:1 cname:stream_1_cname\r\n" + "a=ssrc:1 msid:local_stream audio_track_id_1\r\n"; + +static const char kSdpVideoString[] = + "m=video 9 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" + "a=mid:video_content_name\r\n" + "a=sendrecv\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc:2 cname:stream_1_cname\r\n" + "a=ssrc:2 msid:local_stream video_track_id_1\r\n"; + +// Reference sdp string using bundle-only. +static const char kBundleOnlySdpFullString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=extmap-allow-mixed\r\n" + "a=group:BUNDLE audio_content_name video_content_name\r\n" + "a=msid-semantic: WMS local_stream_1\r\n" + "m=audio 2345 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 74.125.127.126\r\n" + "a=rtcp:2347 IN IP4 74.125.127.126\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " + "generation 2\r\n" + "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " + "raddr 192.168.1.5 rport 2346 " + "generation 2\r\n" + "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " + "raddr 192.168.1.5 rport 2348 " + "generation 2\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:1 cname:stream_1_cname\r\n" + "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n" + "m=video 0 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=bundle-only\r\n" + "a=mid:video_content_name\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc-group:FEC 2 3\r\n" + "a=ssrc:2 cname:stream_1_cname\r\n" + "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n" + "a=ssrc:3 cname:stream_1_cname\r\n" + "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n"; + +// Plan B SDP reference string, with 2 streams, 2 audio tracks and 3 video +// tracks. +static const char kPlanBSdpFullString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=extmap-allow-mixed\r\n" + "a=msid-semantic: WMS local_stream_1 local_stream_2\r\n" + "m=audio 2345 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 74.125.127.126\r\n" + "a=rtcp:2347 IN IP4 74.125.127.126\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " + "generation 2\r\n" + "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " + "raddr 192.168.1.5 rport 2346 " + "generation 2\r\n" + "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " + "raddr 192.168.1.5 rport 2348 " + "generation 2\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:1 cname:stream_1_cname\r\n" + "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n" + "a=ssrc:4 cname:stream_2_cname\r\n" + "a=ssrc:4 msid:local_stream_2 audio_track_id_2\r\n" + "m=video 3457 RTP/SAVPF 120\r\n" + "c=IN IP4 74.125.224.39\r\n" + "a=rtcp:3456 IN IP4 74.125.224.39\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " + "generation 2\r\n" + "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " + "generation 2\r\n" + "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " + "generation 2\r\n" + "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" + "a=mid:video_content_name\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc-group:FEC 2 3\r\n" + "a=ssrc:2 cname:stream_1_cname\r\n" + "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n" + "a=ssrc:3 cname:stream_1_cname\r\n" + "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n" + "a=ssrc:5 cname:stream_2_cname\r\n" + "a=ssrc:5 msid:local_stream_2 video_track_id_2\r\n" + "a=ssrc:6 cname:stream_2_cname\r\n" + "a=ssrc:6 msid:local_stream_2 video_track_id_3\r\n"; + +// Unified Plan SDP reference string, with 2 streams, 2 audio tracks and 3 video +// tracks. +static const char kUnifiedPlanSdpFullString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=extmap-allow-mixed\r\n" + "a=msid-semantic: WMS local_stream_1\r\n" + // Audio track 1, stream 1 (with candidates). + "m=audio 2345 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 74.125.127.126\r\n" + "a=rtcp:2347 IN IP4 74.125.127.126\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " + "generation 2\r\n" + "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " + "raddr 192.168.1.5 rport 2346 " + "generation 2\r\n" + "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " + "raddr 192.168.1.5 rport 2348 " + "generation 2\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=msid:local_stream_1 audio_track_id_1\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:1 cname:stream_1_cname\r\n" + // Video track 1, stream 1 (with candidates). + "m=video 3457 RTP/SAVPF 120\r\n" + "c=IN IP4 74.125.224.39\r\n" + "a=rtcp:3456 IN IP4 74.125.224.39\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " + "generation 2\r\n" + "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " + "generation 2\r\n" + "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " + "generation 2\r\n" + "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" + "a=mid:video_content_name\r\n" + "a=msid:local_stream_1 video_track_id_1\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc-group:FEC 2 3\r\n" + "a=ssrc:2 cname:stream_1_cname\r\n" + "a=ssrc:3 cname:stream_1_cname\r\n" + // Audio track 2, stream 2. + "m=audio 9 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n" + "a=mid:audio_content_name_2\r\n" + "a=msid:local_stream_2 audio_track_id_2\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:4 cname:stream_2_cname\r\n" + // Video track 2, stream 2. + "m=video 9 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_video_2\r\na=ice-pwd:pwd_video_2\r\n" + "a=mid:video_content_name_2\r\n" + "a=msid:local_stream_2 video_track_id_2\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc:5 cname:stream_2_cname\r\n" + // Video track 3, stream 2. + "m=video 9 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_video_3\r\na=ice-pwd:pwd_video_3\r\n" + "a=mid:video_content_name_3\r\n" + "a=msid:local_stream_2 video_track_id_3\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=ssrc:6 cname:stream_2_cname\r\n"; + +// Unified Plan SDP reference string: +// - audio track 1 has 1 a=msid lines +// - audio track 2 has 2 a=msid lines +// - audio track 3 has 1 a=msid line with the special "-" marker signifying that +// there are 0 media stream ids. +// This Unified Plan SDP represents a SDP that signals the msid using both +// a=msid and a=ssrc msid semantics. +static const char kUnifiedPlanSdpFullStringWithSpecialMsid[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=extmap-allow-mixed\r\n" + "a=msid-semantic: WMS local_stream_1\r\n" + // Audio track 1, with 1 stream id. + "m=audio 2345 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 74.125.127.126\r\n" + "a=rtcp:2347 IN IP4 74.125.127.126\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " + "generation 2\r\n" + "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " + "raddr 192.168.1.5 rport 2346 " + "generation 2\r\n" + "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " + "raddr 192.168.1.5 rport 2348 " + "generation 2\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=sendrecv\r\n" + "a=msid:local_stream_1 audio_track_id_1\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:1 cname:stream_1_cname\r\n" + "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n" + // Audio track 2, with two stream ids. + "m=audio 9 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n" + "a=mid:audio_content_name_2\r\n" + "a=sendrecv\r\n" + "a=msid:local_stream_1 audio_track_id_2\r\n" + "a=msid:local_stream_2 audio_track_id_2\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:4 cname:stream_1_cname\r\n" + // The support for Plan B msid signaling only includes the + // first media stream id "local_stream_1." + "a=ssrc:4 msid:local_stream_1 audio_track_id_2\r\n" + // Audio track 3, with no stream ids. + "m=audio 9 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice_3\r\na=ice-pwd:pwd_voice_3\r\n" + "a=mid:audio_content_name_3\r\n" + "a=sendrecv\r\n" + "a=msid:- audio_track_id_3\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=ssrc:7 cname:stream_2_cname\r\n" + "a=ssrc:7 msid:- audio_track_id_3\r\n"; + +// SDP string for unified plan without SSRCs +static const char kUnifiedPlanSdpFullStringNoSsrc[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=msid-semantic: WMS local_stream_1\r\n" + // Audio track 1, stream 1 (with candidates). + "m=audio 2345 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 74.125.127.126\r\n" + "a=rtcp:2347 IN IP4 74.125.127.126\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " + "generation 2\r\n" + "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " + "raddr 192.168.1.5 rport 2346 " + "generation 2\r\n" + "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " + "raddr 192.168.1.5 rport 2348 " + "generation 2\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=mid:audio_content_name\r\n" + "a=msid:local_stream_1 audio_track_id_1\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + // Video track 1, stream 1 (with candidates). + "m=video 3457 RTP/SAVPF 120\r\n" + "c=IN IP4 74.125.224.39\r\n" + "a=rtcp:3456 IN IP4 74.125.224.39\r\n" + "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " + "generation 2\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " + "generation 2\r\n" + "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " + "generation 2\r\n" + "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " + "generation 2\r\n" + "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " + "generation 2\r\n" + "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" + "a=mid:video_content_name\r\n" + "a=msid:local_stream_1 video_track_id_1\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + // Audio track 2, stream 2. + "m=audio 9 RTP/SAVPF 111 103 104\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n" + "a=mid:audio_content_name_2\r\n" + "a=msid:local_stream_2 audio_track_id_2\r\n" + "a=sendrecv\r\n" + "a=rtcp-mux\r\n" + "a=rtcp-rsize\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_32 " + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 " + "dummy_session_params\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + // Video track 2, stream 2. + "m=video 9 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_video_2\r\na=ice-pwd:pwd_video_2\r\n" + "a=mid:video_content_name_2\r\n" + "a=msid:local_stream_2 video_track_id_2\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n" + // Video track 3, stream 2. + "m=video 9 RTP/SAVPF 120\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_video_3\r\na=ice-pwd:pwd_video_3\r\n" + "a=mid:video_content_name_3\r\n" + "a=msid:local_stream_2 video_track_id_3\r\n" + "a=sendrecv\r\n" + "a=crypto:1 AES_CM_128_HMAC_SHA1_80 " + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n" + "a=rtpmap:120 VP8/90000\r\n"; + +// One candidate reference string as per W3c spec. +// candidate:<blah> not a=candidate:<blah>CRLF +static const char kRawCandidate[] = + "candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host generation 2"; +// One candidate reference string. +static const char kSdpOneCandidate[] = + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n"; + +static const char kSdpTcpActiveCandidate[] = + "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " + "tcptype active generation 2"; +static const char kSdpTcpPassiveCandidate[] = + "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " + "tcptype passive generation 2"; +static const char kSdpTcpSOCandidate[] = + "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " + "tcptype so generation 2"; +static const char kSdpTcpInvalidCandidate[] = + "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " + "tcptype invalid generation 2"; + +// One candidate reference string with IPV6 address. +static const char kRawIPV6Candidate[] = + "candidate:a0+B/1 1 udp 2130706432 " + "abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd 1234 typ host generation 2"; + +// One candidate reference string. +static const char kSdpOneCandidateWithUfragPwd[] = + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host network_name" + " eth0 ufrag user_rtp pwd password_rtp generation 2\r\n"; + +static const char kRawHostnameCandidate[] = + "candidate:a0+B/1 1 udp 2130706432 a.test 1234 typ host generation 2"; + +// Session id and version +static const char kSessionId[] = "18446744069414584320"; +static const char kSessionVersion[] = "18446462598732840960"; + +// ICE options. +static const char kIceOption1[] = "iceoption1"; +static const char kIceOption2[] = "iceoption2"; +static const char kIceOption3[] = "iceoption3"; + +// ICE ufrags/passwords. +static const char kUfragVoice[] = "ufrag_voice"; +static const char kPwdVoice[] = "pwd_voice"; +static const char kUfragVideo[] = "ufrag_video"; +static const char kPwdVideo[] = "pwd_video"; +static const char kUfragData[] = "ufrag_data"; +static const char kPwdData[] = "pwd_data"; + +// Extra ufrags/passwords for extra unified plan m= sections. +static const char kUfragVoice2[] = "ufrag_voice_2"; +static const char kPwdVoice2[] = "pwd_voice_2"; +static const char kUfragVoice3[] = "ufrag_voice_3"; +static const char kPwdVoice3[] = "pwd_voice_3"; +static const char kUfragVideo2[] = "ufrag_video_2"; +static const char kPwdVideo2[] = "pwd_video_2"; +static const char kUfragVideo3[] = "ufrag_video_3"; +static const char kPwdVideo3[] = "pwd_video_3"; + +// Content name +static const char kAudioContentName[] = "audio_content_name"; +static const char kVideoContentName[] = "video_content_name"; +static const char kDataContentName[] = "data_content_name"; + +// Extra content names for extra unified plan m= sections. +static const char kAudioContentName2[] = "audio_content_name_2"; +static const char kAudioContentName3[] = "audio_content_name_3"; +static const char kVideoContentName2[] = "video_content_name_2"; +static const char kVideoContentName3[] = "video_content_name_3"; + +// MediaStream 1 +static const char kStreamId1[] = "local_stream_1"; +static const char kStream1Cname[] = "stream_1_cname"; +static const char kAudioTrackId1[] = "audio_track_id_1"; +static const uint32_t kAudioTrack1Ssrc = 1; +static const char kVideoTrackId1[] = "video_track_id_1"; +static const uint32_t kVideoTrack1Ssrc1 = 2; +static const uint32_t kVideoTrack1Ssrc2 = 3; + +// MediaStream 2 +static const char kStreamId2[] = "local_stream_2"; +static const char kStream2Cname[] = "stream_2_cname"; +static const char kAudioTrackId2[] = "audio_track_id_2"; +static const uint32_t kAudioTrack2Ssrc = 4; +static const char kVideoTrackId2[] = "video_track_id_2"; +static const uint32_t kVideoTrack2Ssrc = 5; +static const char kVideoTrackId3[] = "video_track_id_3"; +static const uint32_t kVideoTrack3Ssrc = 6; +static const char kAudioTrackId3[] = "audio_track_id_3"; +static const uint32_t kAudioTrack3Ssrc = 7; + +// Candidate +static const char kDummyMid[] = "dummy_mid"; +static const int kDummyIndex = 123; + +// Misc +static SdpType kDummyType = SdpType::kOffer; + +// Helper functions + +static bool SdpDeserialize(const std::string& message, + JsepSessionDescription* jdesc) { + return webrtc::SdpDeserialize(message, jdesc, NULL); +} + +static bool SdpDeserializeCandidate(const std::string& message, + JsepIceCandidate* candidate) { + return webrtc::SdpDeserializeCandidate(message, candidate, NULL); +} + +// Add some extra `newlines` to the `message` after `line`. +static void InjectAfter(const std::string& line, + const std::string& newlines, + std::string* message) { + absl::StrReplaceAll({{line, line + newlines}}, message); +} + +static void Replace(const std::string& line, + const std::string& newlines, + std::string* message) { + absl::StrReplaceAll({{line, newlines}}, message); +} + +// Expect a parse failure on the line containing `bad_part` when attempting to +// parse `bad_sdp`. +static void ExpectParseFailure(const std::string& bad_sdp, + const std::string& bad_part) { + JsepSessionDescription desc(kDummyType); + SdpParseError error; + bool ret = webrtc::SdpDeserialize(bad_sdp, &desc, &error); + ASSERT_FALSE(ret); + EXPECT_NE(std::string::npos, error.line.find(bad_part.c_str())) + << "Did not find " << bad_part << " in " << error.line; +} + +// Expect fail to parse kSdpFullString if replace `good_part` with `bad_part`. +static void ExpectParseFailure(const char* good_part, const char* bad_part) { + std::string bad_sdp = kSdpFullString; + Replace(good_part, bad_part, &bad_sdp); + ExpectParseFailure(bad_sdp, bad_part); +} + +// Expect fail to parse kSdpFullString if add `newlines` after `injectpoint`. +static void ExpectParseFailureWithNewLines(const std::string& injectpoint, + const std::string& newlines, + const std::string& bad_part) { + std::string bad_sdp = kSdpFullString; + InjectAfter(injectpoint, newlines, &bad_sdp); + ExpectParseFailure(bad_sdp, bad_part); +} + +static void ReplaceDirection(RtpTransceiverDirection direction, + std::string* message) { + std::string new_direction; + switch (direction) { + case RtpTransceiverDirection::kInactive: + new_direction = "a=inactive"; + break; + case RtpTransceiverDirection::kSendOnly: + new_direction = "a=sendonly"; + break; + case RtpTransceiverDirection::kRecvOnly: + new_direction = "a=recvonly"; + break; + case RtpTransceiverDirection::kSendRecv: + new_direction = "a=sendrecv"; + break; + case RtpTransceiverDirection::kStopped: + default: + RTC_DCHECK_NOTREACHED(); + new_direction = "a=sendrecv"; + break; + } + Replace("a=sendrecv", new_direction, message); +} + +static void ReplaceRejected(bool audio_rejected, + bool video_rejected, + std::string* message) { + if (audio_rejected) { + Replace("m=audio 9", "m=audio 0", message); + Replace(kAttributeIceUfragVoice, "", message); + Replace(kAttributeIcePwdVoice, "", message); + } + if (video_rejected) { + Replace("m=video 9", "m=video 0", message); + Replace(kAttributeIceUfragVideo, "", message); + Replace(kAttributeIcePwdVideo, "", message); + } +} + +// WebRtcSdpTest + +class WebRtcSdpTest : public ::testing::Test { + public: + WebRtcSdpTest() : jdesc_(kDummyType) { +#ifdef WEBRTC_ANDROID + webrtc::InitializeAndroidObjects(); +#endif + // AudioContentDescription + audio_desc_ = CreateAudioContentDescription(); + StreamParams audio_stream; + audio_stream.id = kAudioTrackId1; + audio_stream.cname = kStream1Cname; + audio_stream.set_stream_ids({kStreamId1}); + audio_stream.ssrcs.push_back(kAudioTrack1Ssrc); + audio_desc_->AddStream(audio_stream); + rtc::SocketAddress audio_addr("74.125.127.126", 2345); + audio_desc_->set_connection_address(audio_addr); + desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, + absl::WrapUnique(audio_desc_)); + + // VideoContentDescription + video_desc_ = CreateVideoContentDescription(); + StreamParams video_stream; + video_stream.id = kVideoTrackId1; + video_stream.cname = kStream1Cname; + video_stream.set_stream_ids({kStreamId1}); + video_stream.ssrcs.push_back(kVideoTrack1Ssrc1); + video_stream.ssrcs.push_back(kVideoTrack1Ssrc2); + cricket::SsrcGroup ssrc_group(kFecSsrcGroupSemantics, video_stream.ssrcs); + video_stream.ssrc_groups.push_back(ssrc_group); + video_desc_->AddStream(video_stream); + rtc::SocketAddress video_addr("74.125.224.39", 3457); + video_desc_->set_connection_address(video_addr); + desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, + absl::WrapUnique(video_desc_)); + + // TransportInfo + desc_.AddTransportInfo(TransportInfo( + kAudioContentName, TransportDescription(kUfragVoice, kPwdVoice))); + desc_.AddTransportInfo(TransportInfo( + kVideoContentName, TransportDescription(kUfragVideo, kPwdVideo))); + + // v4 host + int port = 1234; + rtc::SocketAddress address("192.168.1.5", port++); + Candidate candidate1(ICE_CANDIDATE_COMPONENT_RTP, "udp", address, + kCandidatePriority, "", "", LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation1); + address.SetPort(port++); + Candidate candidate2(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address, + kCandidatePriority, "", "", LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation1); + address.SetPort(port++); + Candidate candidate3(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address, + kCandidatePriority, "", "", LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation1); + address.SetPort(port++); + Candidate candidate4(ICE_CANDIDATE_COMPONENT_RTP, "udp", address, + kCandidatePriority, "", "", LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation1); + + // v6 host + rtc::SocketAddress v6_address("::1", port++); + cricket::Candidate candidate5(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp", + v6_address, kCandidatePriority, "", "", + cricket::LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation2); + v6_address.SetPort(port++); + cricket::Candidate candidate6(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp", + v6_address, kCandidatePriority, "", "", + cricket::LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation2); + v6_address.SetPort(port++); + cricket::Candidate candidate7(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp", + v6_address, kCandidatePriority, "", "", + cricket::LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation2); + v6_address.SetPort(port++); + cricket::Candidate candidate8(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp", + v6_address, kCandidatePriority, "", "", + cricket::LOCAL_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation2); + + // stun + int port_stun = 2345; + rtc::SocketAddress address_stun("74.125.127.126", port_stun++); + rtc::SocketAddress rel_address_stun("192.168.1.5", port_stun++); + cricket::Candidate candidate9(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp", + address_stun, kCandidatePriority, "", "", + STUN_PORT_TYPE, kCandidateGeneration, + kCandidateFoundation3); + candidate9.set_related_address(rel_address_stun); + + address_stun.SetPort(port_stun++); + rel_address_stun.SetPort(port_stun++); + cricket::Candidate candidate10(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp", + address_stun, kCandidatePriority, "", "", + STUN_PORT_TYPE, kCandidateGeneration, + kCandidateFoundation3); + candidate10.set_related_address(rel_address_stun); + + // relay + int port_relay = 3456; + rtc::SocketAddress address_relay("74.125.224.39", port_relay++); + cricket::Candidate candidate11(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp", + address_relay, kCandidatePriority, "", "", + cricket::RELAY_PORT_TYPE, + kCandidateGeneration, kCandidateFoundation4); + address_relay.SetPort(port_relay++); + cricket::Candidate candidate12(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp", + address_relay, kCandidatePriority, "", "", + RELAY_PORT_TYPE, kCandidateGeneration, + kCandidateFoundation4); + + // voice + candidates_.push_back(candidate1); + candidates_.push_back(candidate2); + candidates_.push_back(candidate5); + candidates_.push_back(candidate6); + candidates_.push_back(candidate9); + candidates_.push_back(candidate10); + + // video + candidates_.push_back(candidate3); + candidates_.push_back(candidate4); + candidates_.push_back(candidate7); + candidates_.push_back(candidate8); + candidates_.push_back(candidate11); + candidates_.push_back(candidate12); + + jcandidate_.reset( + new JsepIceCandidate(std::string("audio_content_name"), 0, candidate1)); + + // Set up JsepSessionDescription. + jdesc_.Initialize(desc_.Clone(), kSessionId, kSessionVersion); + std::string mline_id; + int mline_index = 0; + for (size_t i = 0; i < candidates_.size(); ++i) { + // In this test, the audio m line index will be 0, and the video m line + // will be 1. + bool is_video = (i > 5); + mline_id = is_video ? "video_content_name" : "audio_content_name"; + mline_index = is_video ? 1 : 0; + JsepIceCandidate jice(mline_id, mline_index, candidates_.at(i)); + jdesc_.AddCandidate(&jice); + } + } + + void RemoveVideoCandidates() { + const IceCandidateCollection* video_candidates_collection = + jdesc_.candidates(1); + ASSERT_NE(nullptr, video_candidates_collection); + std::vector<cricket::Candidate> video_candidates; + for (size_t i = 0; i < video_candidates_collection->count(); ++i) { + cricket::Candidate c = video_candidates_collection->at(i)->candidate(); + c.set_transport_name("video_content_name"); + video_candidates.push_back(c); + } + jdesc_.RemoveCandidates(video_candidates); + } + + // Turns the existing reference description into a description using + // a=bundle-only. This means no transport attributes and a 0 port value on + // the m= sections not associated with the BUNDLE-tag. + void MakeBundleOnlyDescription() { + RemoveVideoCandidates(); + + // And the rest of the transport attributes. + desc_.transport_infos()[1].description.ice_ufrag.clear(); + desc_.transport_infos()[1].description.ice_pwd.clear(); + desc_.transport_infos()[1].description.connection_role = + cricket::CONNECTIONROLE_NONE; + + // Set bundle-only flag. + desc_.contents()[1].bundle_only = true; + + // Add BUNDLE group. + ContentGroup group(cricket::GROUP_TYPE_BUNDLE); + group.AddContentName(kAudioContentName); + group.AddContentName(kVideoContentName); + desc_.AddGroup(group); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + } + + // Turns the existing reference description into a plan B description, + // with 2 audio tracks and 3 video tracks. + void MakePlanBDescription() { + audio_desc_ = new AudioContentDescription(*audio_desc_); + video_desc_ = new VideoContentDescription(*video_desc_); + + StreamParams audio_track_2; + audio_track_2.id = kAudioTrackId2; + audio_track_2.cname = kStream2Cname; + audio_track_2.set_stream_ids({kStreamId2}); + audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc); + audio_desc_->AddStream(audio_track_2); + + StreamParams video_track_2; + video_track_2.id = kVideoTrackId2; + video_track_2.cname = kStream2Cname; + video_track_2.set_stream_ids({kStreamId2}); + video_track_2.ssrcs.push_back(kVideoTrack2Ssrc); + video_desc_->AddStream(video_track_2); + + StreamParams video_track_3; + video_track_3.id = kVideoTrackId3; + video_track_3.cname = kStream2Cname; + video_track_3.set_stream_ids({kStreamId2}); + video_track_3.ssrcs.push_back(kVideoTrack3Ssrc); + video_desc_->AddStream(video_track_3); + + desc_.RemoveContentByName(kAudioContentName); + desc_.RemoveContentByName(kVideoContentName); + desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, + absl::WrapUnique(audio_desc_)); + desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, + absl::WrapUnique(video_desc_)); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + } + + // Turns the existing reference description into a unified plan description, + // with 2 audio tracks and 3 video tracks. + void MakeUnifiedPlanDescription(bool use_ssrcs = true) { + // Audio track 2. + AudioContentDescription* audio_desc_2 = CreateAudioContentDescription(); + StreamParams audio_track_2; + audio_track_2.id = kAudioTrackId2; + audio_track_2.set_stream_ids({kStreamId2}); + if (use_ssrcs) { + audio_track_2.cname = kStream2Cname; + audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc); + } + audio_desc_2->AddStream(audio_track_2); + desc_.AddContent(kAudioContentName2, MediaProtocolType::kRtp, + absl::WrapUnique(audio_desc_2)); + desc_.AddTransportInfo(TransportInfo( + kAudioContentName2, TransportDescription(kUfragVoice2, kPwdVoice2))); + // Video track 2, in stream 2. + VideoContentDescription* video_desc_2 = CreateVideoContentDescription(); + StreamParams video_track_2; + video_track_2.id = kVideoTrackId2; + video_track_2.set_stream_ids({kStreamId2}); + if (use_ssrcs) { + video_track_2.cname = kStream2Cname; + video_track_2.ssrcs.push_back(kVideoTrack2Ssrc); + } + video_desc_2->AddStream(video_track_2); + desc_.AddContent(kVideoContentName2, MediaProtocolType::kRtp, + absl::WrapUnique(video_desc_2)); + desc_.AddTransportInfo(TransportInfo( + kVideoContentName2, TransportDescription(kUfragVideo2, kPwdVideo2))); + + // Video track 3, in stream 2. + VideoContentDescription* video_desc_3 = CreateVideoContentDescription(); + StreamParams video_track_3; + video_track_3.id = kVideoTrackId3; + video_track_3.set_stream_ids({kStreamId2}); + if (use_ssrcs) { + video_track_3.cname = kStream2Cname; + video_track_3.ssrcs.push_back(kVideoTrack3Ssrc); + } + video_desc_3->AddStream(video_track_3); + desc_.AddContent(kVideoContentName3, MediaProtocolType::kRtp, + absl::WrapUnique(video_desc_3)); + desc_.AddTransportInfo(TransportInfo( + kVideoContentName3, TransportDescription(kUfragVideo3, kPwdVideo3))); + desc_.set_msid_signaling(cricket::kMsidSignalingMediaSection); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + } + + // Creates an audio content description with no streams, and some default + // configuration. + AudioContentDescription* CreateAudioContentDescription() { + AudioContentDescription* audio = new AudioContentDescription(); + audio->set_rtcp_mux(true); + audio->set_rtcp_reduced_size(true); + audio->AddCrypto(CryptoParams( + 1, "AES_CM_128_HMAC_SHA1_32", + "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32", + "dummy_session_params")); + audio->set_protocol(cricket::kMediaProtocolSavpf); + audio->AddCodec(AudioCodec(111, "opus", 48000, 0, 2)); + audio->AddCodec(AudioCodec(103, "ISAC", 16000, 0, 1)); + audio->AddCodec(AudioCodec(104, "ISAC", 32000, 0, 1)); + return audio; + } + + // Turns the existing reference description into a unified plan description, + // with 3 audio MediaContentDescriptions with special StreamParams that + // contain 0 or multiple stream ids: - audio track 1 has 1 media stream id - + // audio track 2 has 2 media stream ids - audio track 3 has 0 media stream ids + void MakeUnifiedPlanDescriptionMultipleStreamIds(const int msid_signaling) { + desc_.RemoveContentByName(kVideoContentName); + desc_.RemoveTransportInfoByName(kVideoContentName); + RemoveVideoCandidates(); + + // Audio track 2 has 2 media stream ids. + AudioContentDescription* audio_desc_2 = CreateAudioContentDescription(); + StreamParams audio_track_2; + audio_track_2.id = kAudioTrackId2; + audio_track_2.cname = kStream1Cname; + audio_track_2.set_stream_ids({kStreamId1, kStreamId2}); + audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc); + audio_desc_2->AddStream(audio_track_2); + desc_.AddContent(kAudioContentName2, MediaProtocolType::kRtp, + absl::WrapUnique(audio_desc_2)); + desc_.AddTransportInfo(TransportInfo( + kAudioContentName2, TransportDescription(kUfragVoice2, kPwdVoice2))); + + // Audio track 3 has no stream ids. + AudioContentDescription* audio_desc_3 = CreateAudioContentDescription(); + StreamParams audio_track_3; + audio_track_3.id = kAudioTrackId3; + audio_track_3.cname = kStream2Cname; + audio_track_3.set_stream_ids({}); + audio_track_3.ssrcs.push_back(kAudioTrack3Ssrc); + audio_desc_3->AddStream(audio_track_3); + desc_.AddContent(kAudioContentName3, MediaProtocolType::kRtp, + absl::WrapUnique(audio_desc_3)); + desc_.AddTransportInfo(TransportInfo( + kAudioContentName3, TransportDescription(kUfragVoice3, kPwdVoice3))); + desc_.set_msid_signaling(msid_signaling); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + } + + // Turns the existing reference description into a unified plan description + // with one audio MediaContentDescription that contains one StreamParams with + // 0 ssrcs. + void MakeUnifiedPlanDescriptionNoSsrcSignaling() { + desc_.RemoveContentByName(kVideoContentName); + desc_.RemoveContentByName(kAudioContentName); + desc_.RemoveTransportInfoByName(kVideoContentName); + RemoveVideoCandidates(); + + AudioContentDescription* audio_desc = CreateAudioContentDescription(); + StreamParams audio_track; + audio_track.id = kAudioTrackId1; + audio_track.set_stream_ids({kStreamId1}); + audio_desc->AddStream(audio_track); + desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, + absl::WrapUnique(audio_desc)); + + // Enable signaling a=msid lines. + desc_.set_msid_signaling(cricket::kMsidSignalingMediaSection); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + } + + // Creates a video content description with no streams, and some default + // configuration. + VideoContentDescription* CreateVideoContentDescription() { + VideoContentDescription* video = new VideoContentDescription(); + video->AddCrypto(CryptoParams( + 1, "AES_CM_128_HMAC_SHA1_80", + "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32", "")); + video->set_protocol(cricket::kMediaProtocolSavpf); + video->AddCodec( + VideoCodec(120, JsepSessionDescription::kDefaultVideoCodecName)); + return video; + } + + template <class MCD> + void CompareMediaContentDescription(const MCD* cd1, const MCD* cd2) { + // type + EXPECT_EQ(cd1->type(), cd2->type()); + + // content direction + EXPECT_EQ(cd1->direction(), cd2->direction()); + + // rtcp_mux + EXPECT_EQ(cd1->rtcp_mux(), cd2->rtcp_mux()); + + // rtcp_reduced_size + EXPECT_EQ(cd1->rtcp_reduced_size(), cd2->rtcp_reduced_size()); + + // cryptos + EXPECT_EQ(cd1->cryptos().size(), cd2->cryptos().size()); + if (cd1->cryptos().size() != cd2->cryptos().size()) { + ADD_FAILURE(); + return; + } + for (size_t i = 0; i < cd1->cryptos().size(); ++i) { + const CryptoParams c1 = cd1->cryptos().at(i); + const CryptoParams c2 = cd2->cryptos().at(i); + EXPECT_TRUE(c1.Matches(c2)); + EXPECT_EQ(c1.key_params, c2.key_params); + EXPECT_EQ(c1.session_params, c2.session_params); + } + + // protocol + // Use an equivalence class here, for old and new versions of the + // protocol description. + if (cd1->protocol() == cricket::kMediaProtocolDtlsSctp || + cd1->protocol() == cricket::kMediaProtocolUdpDtlsSctp || + cd1->protocol() == cricket::kMediaProtocolTcpDtlsSctp) { + const bool cd2_is_also_dtls_sctp = + cd2->protocol() == cricket::kMediaProtocolDtlsSctp || + cd2->protocol() == cricket::kMediaProtocolUdpDtlsSctp || + cd2->protocol() == cricket::kMediaProtocolTcpDtlsSctp; + EXPECT_TRUE(cd2_is_also_dtls_sctp); + } else { + EXPECT_EQ(cd1->protocol(), cd2->protocol()); + } + + // codecs + EXPECT_EQ(cd1->codecs(), cd2->codecs()); + + // bandwidth + EXPECT_EQ(cd1->bandwidth(), cd2->bandwidth()); + + // streams + EXPECT_EQ(cd1->streams(), cd2->streams()); + + // extmap-allow-mixed + EXPECT_EQ(cd1->extmap_allow_mixed_enum(), cd2->extmap_allow_mixed_enum()); + + // extmap + ASSERT_EQ(cd1->rtp_header_extensions().size(), + cd2->rtp_header_extensions().size()); + for (size_t i = 0; i < cd1->rtp_header_extensions().size(); ++i) { + const RtpExtension ext1 = cd1->rtp_header_extensions().at(i); + const RtpExtension ext2 = cd2->rtp_header_extensions().at(i); + EXPECT_EQ(ext1.uri, ext2.uri); + EXPECT_EQ(ext1.id, ext2.id); + EXPECT_EQ(ext1.encrypt, ext2.encrypt); + } + } + + void CompareRidDescriptionIds(const std::vector<RidDescription>& rids, + const std::vector<std::string>& ids) { + // Order of elements does not matter, only equivalence of sets. + EXPECT_EQ(rids.size(), ids.size()); + for (const std::string& id : ids) { + EXPECT_EQ(1l, absl::c_count_if(rids, [id](const RidDescription& rid) { + return rid.rid == id; + })); + } + } + + void CompareSimulcastDescription(const SimulcastDescription& simulcast1, + const SimulcastDescription& simulcast2) { + EXPECT_EQ(simulcast1.send_layers().size(), simulcast2.send_layers().size()); + EXPECT_EQ(simulcast1.receive_layers().size(), + simulcast2.receive_layers().size()); + } + + void CompareSctpDataContentDescription( + const SctpDataContentDescription* dcd1, + const SctpDataContentDescription* dcd2) { + EXPECT_EQ(dcd1->use_sctpmap(), dcd2->use_sctpmap()); + EXPECT_EQ(dcd1->port(), dcd2->port()); + EXPECT_EQ(dcd1->max_message_size(), dcd2->max_message_size()); + } + + void CompareSessionDescription(const SessionDescription& desc1, + const SessionDescription& desc2) { + // Compare content descriptions. + if (desc1.contents().size() != desc2.contents().size()) { + ADD_FAILURE(); + return; + } + for (size_t i = 0; i < desc1.contents().size(); ++i) { + const cricket::ContentInfo& c1 = desc1.contents().at(i); + const cricket::ContentInfo& c2 = desc2.contents().at(i); + // ContentInfo properties. + EXPECT_EQ(c1.name, c2.name); + EXPECT_EQ(c1.type, c2.type); + EXPECT_EQ(c1.rejected, c2.rejected); + EXPECT_EQ(c1.bundle_only, c2.bundle_only); + + ASSERT_EQ(IsAudioContent(&c1), IsAudioContent(&c2)); + if (IsAudioContent(&c1)) { + const AudioContentDescription* acd1 = + c1.media_description()->as_audio(); + const AudioContentDescription* acd2 = + c2.media_description()->as_audio(); + CompareMediaContentDescription<AudioContentDescription>(acd1, acd2); + } + + ASSERT_EQ(IsVideoContent(&c1), IsVideoContent(&c2)); + if (IsVideoContent(&c1)) { + const VideoContentDescription* vcd1 = + c1.media_description()->as_video(); + const VideoContentDescription* vcd2 = + c2.media_description()->as_video(); + CompareMediaContentDescription<VideoContentDescription>(vcd1, vcd2); + } + + ASSERT_EQ(IsDataContent(&c1), IsDataContent(&c2)); + if (c1.media_description()->as_sctp()) { + ASSERT_TRUE(c2.media_description()->as_sctp()); + const SctpDataContentDescription* scd1 = + c1.media_description()->as_sctp(); + const SctpDataContentDescription* scd2 = + c2.media_description()->as_sctp(); + CompareSctpDataContentDescription(scd1, scd2); + } + + CompareSimulcastDescription( + c1.media_description()->simulcast_description(), + c2.media_description()->simulcast_description()); + } + + // group + const cricket::ContentGroups groups1 = desc1.groups(); + const cricket::ContentGroups groups2 = desc2.groups(); + EXPECT_EQ(groups1.size(), groups1.size()); + if (groups1.size() != groups2.size()) { + ADD_FAILURE(); + return; + } + for (size_t i = 0; i < groups1.size(); ++i) { + const cricket::ContentGroup group1 = groups1.at(i); + const cricket::ContentGroup group2 = groups2.at(i); + EXPECT_EQ(group1.semantics(), group2.semantics()); + const cricket::ContentNames names1 = group1.content_names(); + const cricket::ContentNames names2 = group2.content_names(); + EXPECT_EQ(names1.size(), names2.size()); + if (names1.size() != names2.size()) { + ADD_FAILURE(); + return; + } + cricket::ContentNames::const_iterator iter1 = names1.begin(); + cricket::ContentNames::const_iterator iter2 = names2.begin(); + while (iter1 != names1.end()) { + EXPECT_EQ(*iter1++, *iter2++); + } + } + + // transport info + const cricket::TransportInfos transports1 = desc1.transport_infos(); + const cricket::TransportInfos transports2 = desc2.transport_infos(); + EXPECT_EQ(transports1.size(), transports2.size()); + if (transports1.size() != transports2.size()) { + ADD_FAILURE(); + return; + } + for (size_t i = 0; i < transports1.size(); ++i) { + const cricket::TransportInfo transport1 = transports1.at(i); + const cricket::TransportInfo transport2 = transports2.at(i); + EXPECT_EQ(transport1.content_name, transport2.content_name); + EXPECT_EQ(transport1.description.ice_ufrag, + transport2.description.ice_ufrag); + EXPECT_EQ(transport1.description.ice_pwd, transport2.description.ice_pwd); + EXPECT_EQ(transport1.description.ice_mode, + transport2.description.ice_mode); + if (transport1.description.identity_fingerprint) { + EXPECT_EQ(*transport1.description.identity_fingerprint, + *transport2.description.identity_fingerprint); + } else { + EXPECT_EQ(transport1.description.identity_fingerprint.get(), + transport2.description.identity_fingerprint.get()); + } + EXPECT_EQ(transport1.description.transport_options, + transport2.description.transport_options); + } + + // global attributes + EXPECT_EQ(desc1.msid_supported(), desc2.msid_supported()); + EXPECT_EQ(desc1.extmap_allow_mixed(), desc2.extmap_allow_mixed()); + } + + bool CompareSessionDescription(const JsepSessionDescription& desc1, + const JsepSessionDescription& desc2) { + EXPECT_EQ(desc1.session_id(), desc2.session_id()); + EXPECT_EQ(desc1.session_version(), desc2.session_version()); + CompareSessionDescription(*desc1.description(), *desc2.description()); + if (desc1.number_of_mediasections() != desc2.number_of_mediasections()) + return false; + for (size_t i = 0; i < desc1.number_of_mediasections(); ++i) { + const IceCandidateCollection* cc1 = desc1.candidates(i); + const IceCandidateCollection* cc2 = desc2.candidates(i); + if (cc1->count() != cc2->count()) { + ADD_FAILURE(); + return false; + } + for (size_t j = 0; j < cc1->count(); ++j) { + const IceCandidateInterface* c1 = cc1->at(j); + const IceCandidateInterface* c2 = cc2->at(j); + EXPECT_EQ(c1->sdp_mid(), c2->sdp_mid()); + EXPECT_EQ(c1->sdp_mline_index(), c2->sdp_mline_index()); + EXPECT_TRUE(c1->candidate().IsEquivalent(c2->candidate())); + } + } + return true; + } + + // Disable the ice-ufrag and ice-pwd in given `sdp` message by replacing + // them with invalid keywords so that the parser will just ignore them. + bool RemoveCandidateUfragPwd(std::string* sdp) { + absl::StrReplaceAll( + {{"a=ice-ufrag", "a=xice-ufrag"}, {"a=ice-pwd", "a=xice-pwd"}}, sdp); + return true; + } + + // Update the candidates in `jdesc` to use the given `ufrag` and `pwd`. + bool UpdateCandidateUfragPwd(JsepSessionDescription* jdesc, + int mline_index, + const std::string& ufrag, + const std::string& pwd) { + std::string content_name; + if (mline_index == 0) { + content_name = kAudioContentName; + } else if (mline_index == 1) { + content_name = kVideoContentName; + } else { + RTC_DCHECK_NOTREACHED(); + } + TransportInfo transport_info(content_name, + TransportDescription(ufrag, pwd)); + SessionDescription* desc = + const_cast<SessionDescription*>(jdesc->description()); + desc->RemoveTransportInfoByName(content_name); + desc->AddTransportInfo(transport_info); + for (size_t i = 0; i < jdesc_.number_of_mediasections(); ++i) { + const IceCandidateCollection* cc = jdesc_.candidates(i); + for (size_t j = 0; j < cc->count(); ++j) { + if (cc->at(j)->sdp_mline_index() == mline_index) { + const_cast<Candidate&>(cc->at(j)->candidate()).set_username(ufrag); + const_cast<Candidate&>(cc->at(j)->candidate()).set_password(pwd); + } + } + } + return true; + } + + void AddIceOptions(const std::string& content_name, + const std::vector<std::string>& transport_options) { + ASSERT_TRUE(desc_.GetTransportInfoByName(content_name) != NULL); + cricket::TransportInfo transport_info = + *(desc_.GetTransportInfoByName(content_name)); + desc_.RemoveTransportInfoByName(content_name); + transport_info.description.transport_options = transport_options; + desc_.AddTransportInfo(transport_info); + } + + void SetIceUfragPwd(const std::string& content_name, + const std::string& ice_ufrag, + const std::string& ice_pwd) { + ASSERT_TRUE(desc_.GetTransportInfoByName(content_name) != NULL); + cricket::TransportInfo transport_info = + *(desc_.GetTransportInfoByName(content_name)); + desc_.RemoveTransportInfoByName(content_name); + transport_info.description.ice_ufrag = ice_ufrag; + transport_info.description.ice_pwd = ice_pwd; + desc_.AddTransportInfo(transport_info); + } + + void AddFingerprint() { + desc_.RemoveTransportInfoByName(kAudioContentName); + desc_.RemoveTransportInfoByName(kVideoContentName); + rtc::SSLFingerprint fingerprint(rtc::DIGEST_SHA_1, kIdentityDigest); + desc_.AddTransportInfo(TransportInfo( + kAudioContentName, + TransportDescription(std::vector<std::string>(), kUfragVoice, kPwdVoice, + cricket::ICEMODE_FULL, + cricket::CONNECTIONROLE_NONE, &fingerprint))); + desc_.AddTransportInfo(TransportInfo( + kVideoContentName, + TransportDescription(std::vector<std::string>(), kUfragVideo, kPwdVideo, + cricket::ICEMODE_FULL, + cricket::CONNECTIONROLE_NONE, &fingerprint))); + } + + void AddExtmap(bool encrypted) { + audio_desc_ = new AudioContentDescription(*audio_desc_); + video_desc_ = new VideoContentDescription(*video_desc_); + audio_desc_->AddRtpHeaderExtension( + RtpExtension(kExtmapUri, kExtmapId, encrypted)); + video_desc_->AddRtpHeaderExtension( + RtpExtension(kExtmapUri, kExtmapId, encrypted)); + desc_.RemoveContentByName(kAudioContentName); + desc_.RemoveContentByName(kVideoContentName); + desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, + absl::WrapUnique(audio_desc_)); + desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, + absl::WrapUnique(video_desc_)); + } + + void RemoveCryptos() { + audio_desc_->set_cryptos(std::vector<CryptoParams>()); + video_desc_->set_cryptos(std::vector<CryptoParams>()); + } + + // Removes everything in StreamParams from the session description that is + // used for a=ssrc lines. + void RemoveSsrcSignalingFromStreamParams() { + for (cricket::ContentInfo& content_info : + jdesc_.description()->contents()) { + // With Unified Plan there should be one StreamParams per m= section. + StreamParams& stream = + content_info.media_description()->mutable_streams()[0]; + stream.ssrcs.clear(); + stream.ssrc_groups.clear(); + stream.cname.clear(); + } + } + + // Removes all a=ssrc lines from the SDP string, except for the + // "a=ssrc:... cname:..." lines. + void RemoveSsrcMsidLinesFromSdpString(std::string* sdp_string) { + const char kAttributeSsrc[] = "a=ssrc"; + const char kAttributeCname[] = "cname"; + size_t ssrc_line_pos = sdp_string->find(kAttributeSsrc); + while (ssrc_line_pos != std::string::npos) { + size_t beg_line_pos = sdp_string->rfind('\n', ssrc_line_pos); + size_t end_line_pos = sdp_string->find('\n', ssrc_line_pos); + size_t cname_pos = sdp_string->find(kAttributeCname, ssrc_line_pos); + if (cname_pos == std::string::npos || cname_pos > end_line_pos) { + // Only erase a=ssrc lines that don't contain "cname". + sdp_string->erase(beg_line_pos, end_line_pos - beg_line_pos); + ssrc_line_pos = sdp_string->find(kAttributeSsrc, beg_line_pos); + } else { + // Skip the "a=ssrc:... cname" line and find the next "a=ssrc" line. + ssrc_line_pos = sdp_string->find(kAttributeSsrc, end_line_pos); + } + } + } + + // Removes all a=ssrc lines from the SDP string. + void RemoveSsrcLinesFromSdpString(std::string* sdp_string) { + const char kAttributeSsrc[] = "a=ssrc"; + while (sdp_string->find(kAttributeSsrc) != std::string::npos) { + size_t pos_ssrc_attribute = sdp_string->find(kAttributeSsrc); + size_t beg_line_pos = sdp_string->rfind('\n', pos_ssrc_attribute); + size_t end_line_pos = sdp_string->find('\n', pos_ssrc_attribute); + sdp_string->erase(beg_line_pos, end_line_pos - beg_line_pos); + } + } + + bool TestSerializeDirection(RtpTransceiverDirection direction) { + audio_desc_->set_direction(direction); + video_desc_->set_direction(direction); + std::string new_sdp = kSdpFullString; + ReplaceDirection(direction, &new_sdp); + + if (!jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())) { + return false; + } + std::string message = webrtc::SdpSerialize(jdesc_); + EXPECT_EQ(new_sdp, message); + return true; + } + + bool TestSerializeRejected(bool audio_rejected, bool video_rejected) { + audio_desc_ = new AudioContentDescription(*audio_desc_); + video_desc_ = new VideoContentDescription(*video_desc_); + + desc_.RemoveContentByName(kAudioContentName); + desc_.RemoveContentByName(kVideoContentName); + desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, audio_rejected, + absl::WrapUnique(audio_desc_)); + desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, video_rejected, + absl::WrapUnique(video_desc_)); + SetIceUfragPwd(kAudioContentName, audio_rejected ? "" : kUfragVoice, + audio_rejected ? "" : kPwdVoice); + SetIceUfragPwd(kVideoContentName, video_rejected ? "" : kUfragVideo, + video_rejected ? "" : kPwdVideo); + + std::string new_sdp = kSdpString; + ReplaceRejected(audio_rejected, video_rejected, &new_sdp); + + JsepSessionDescription jdesc_no_candidates(kDummyType); + MakeDescriptionWithoutCandidates(&jdesc_no_candidates); + std::string message = webrtc::SdpSerialize(jdesc_no_candidates); + EXPECT_EQ(new_sdp, message); + return true; + } + + void AddSctpDataChannel(bool use_sctpmap) { + std::unique_ptr<SctpDataContentDescription> data( + new SctpDataContentDescription()); + sctp_desc_ = data.get(); + sctp_desc_->set_use_sctpmap(use_sctpmap); + sctp_desc_->set_protocol(cricket::kMediaProtocolUdpDtlsSctp); + sctp_desc_->set_port(kDefaultSctpPort); + desc_.AddContent(kDataContentName, MediaProtocolType::kSctp, + std::move(data)); + desc_.AddTransportInfo(TransportInfo( + kDataContentName, TransportDescription(kUfragData, kPwdData))); + } + + bool TestDeserializeDirection(RtpTransceiverDirection direction) { + std::string new_sdp = kSdpFullString; + ReplaceDirection(direction, &new_sdp); + JsepSessionDescription new_jdesc(kDummyType); + + EXPECT_TRUE(SdpDeserialize(new_sdp, &new_jdesc)); + + audio_desc_->set_direction(direction); + video_desc_->set_direction(direction); + if (!jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())) { + return false; + } + EXPECT_TRUE(CompareSessionDescription(jdesc_, new_jdesc)); + return true; + } + + bool TestDeserializeRejected(bool audio_rejected, bool video_rejected) { + std::string new_sdp = kSdpString; + ReplaceRejected(audio_rejected, video_rejected, &new_sdp); + JsepSessionDescription new_jdesc(SdpType::kOffer); + EXPECT_TRUE(SdpDeserialize(new_sdp, &new_jdesc)); + + audio_desc_ = new AudioContentDescription(*audio_desc_); + video_desc_ = new VideoContentDescription(*video_desc_); + desc_.RemoveContentByName(kAudioContentName); + desc_.RemoveContentByName(kVideoContentName); + desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, audio_rejected, + absl::WrapUnique(audio_desc_)); + desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, video_rejected, + absl::WrapUnique(video_desc_)); + SetIceUfragPwd(kAudioContentName, audio_rejected ? "" : kUfragVoice, + audio_rejected ? "" : kPwdVoice); + SetIceUfragPwd(kVideoContentName, video_rejected ? "" : kUfragVideo, + video_rejected ? "" : kPwdVideo); + JsepSessionDescription jdesc_no_candidates(kDummyType); + if (!jdesc_no_candidates.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())) { + return false; + } + EXPECT_TRUE(CompareSessionDescription(jdesc_no_candidates, new_jdesc)); + return true; + } + + void TestDeserializeExtmap(bool session_level, + bool media_level, + bool encrypted) { + AddExtmap(encrypted); + JsepSessionDescription new_jdesc(SdpType::kOffer); + ASSERT_TRUE(new_jdesc.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + JsepSessionDescription jdesc_with_extmap(SdpType::kOffer); + std::string sdp_with_extmap = kSdpString; + if (session_level) { + InjectAfter(kSessionTime, + encrypted ? kExtmapWithDirectionAndAttributeEncrypted + : kExtmapWithDirectionAndAttribute, + &sdp_with_extmap); + } + if (media_level) { + InjectAfter(kAttributeIcePwdVoice, + encrypted ? kExtmapWithDirectionAndAttributeEncrypted + : kExtmapWithDirectionAndAttribute, + &sdp_with_extmap); + InjectAfter(kAttributeIcePwdVideo, + encrypted ? kExtmapWithDirectionAndAttributeEncrypted + : kExtmapWithDirectionAndAttribute, + &sdp_with_extmap); + } + // The extmap can't be present at the same time in both session level and + // media level. + if (session_level && media_level) { + SdpParseError error; + EXPECT_FALSE( + webrtc::SdpDeserialize(sdp_with_extmap, &jdesc_with_extmap, &error)); + EXPECT_NE(std::string::npos, error.description.find("a=extmap")); + } else { + EXPECT_TRUE(SdpDeserialize(sdp_with_extmap, &jdesc_with_extmap)); + EXPECT_TRUE(CompareSessionDescription(jdesc_with_extmap, new_jdesc)); + } + } + + void VerifyCodecParameter(const cricket::CodecParameterMap& params, + const std::string& name, + int expected_value) { + cricket::CodecParameterMap::const_iterator found = params.find(name); + ASSERT_TRUE(found != params.end()); + EXPECT_EQ(found->second, rtc::ToString(expected_value)); + } + + void TestDeserializeCodecParams(const CodecParams& params, + JsepSessionDescription* jdesc_output) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + // Include semantics for WebRTC Media Streams since it is supported by + // this parser, and will be added to the SDP when serializing a session + // description. + "a=msid-semantic: WMS\r\n" + // Pl type 111 preferred. + "m=audio 9 RTP/SAVPF 111 104 103 105\r\n" + // Pltype 111 listed before 103 and 104 in the map. + "a=rtpmap:111 opus/48000/2\r\n" + // Pltype 103 listed before 104. + "a=rtpmap:103 ISAC/16000\r\n" + "a=rtpmap:104 ISAC/32000\r\n" + "a=rtpmap:105 telephone-event/8000\r\n" + "a=fmtp:105 0-15,66,70\r\n" + "a=fmtp:111 "; + std::ostringstream os; + os << "minptime=" << params.min_ptime << "; stereo=" << params.stereo + << "; sprop-stereo=" << params.sprop_stereo + << "; useinbandfec=" << params.useinband + << "; maxaveragebitrate=" << params.maxaveragebitrate + << "\r\n" + "a=ptime:" + << params.ptime + << "\r\n" + "a=maxptime:" + << params.max_ptime << "\r\n"; + sdp += os.str(); + + os.clear(); + os.str(""); + // Pl type 100 preferred. + os << "m=video 9 RTP/SAVPF 99 95 96\r\n" + "a=rtpmap:96 VP9/90000\r\n" // out-of-order wrt the m= line. + "a=rtpmap:99 VP8/90000\r\n" + "a=rtpmap:95 RTX/90000\r\n" + "a=fmtp:95 apt=99;\r\n"; + sdp += os.str(); + + // Deserialize + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, jdesc_output, &error)); + + const AudioContentDescription* acd = + GetFirstAudioContentDescription(jdesc_output->description()); + ASSERT_TRUE(acd); + ASSERT_FALSE(acd->codecs().empty()); + cricket::AudioCodec opus = acd->codecs()[0]; + EXPECT_EQ("opus", opus.name); + EXPECT_EQ(111, opus.id); + VerifyCodecParameter(opus.params, "minptime", params.min_ptime); + VerifyCodecParameter(opus.params, "stereo", params.stereo); + VerifyCodecParameter(opus.params, "sprop-stereo", params.sprop_stereo); + VerifyCodecParameter(opus.params, "useinbandfec", params.useinband); + VerifyCodecParameter(opus.params, "maxaveragebitrate", + params.maxaveragebitrate); + for (size_t i = 0; i < acd->codecs().size(); ++i) { + cricket::AudioCodec codec = acd->codecs()[i]; + VerifyCodecParameter(codec.params, "ptime", params.ptime); + VerifyCodecParameter(codec.params, "maxptime", params.max_ptime); + } + + cricket::AudioCodec dtmf = acd->codecs()[3]; + EXPECT_EQ("telephone-event", dtmf.name); + EXPECT_EQ(105, dtmf.id); + EXPECT_EQ(3u, + dtmf.params.size()); // ptime and max_ptime count as parameters. + EXPECT_EQ(dtmf.params.begin()->first, ""); + EXPECT_EQ(dtmf.params.begin()->second, "0-15,66,70"); + + const VideoContentDescription* vcd = + GetFirstVideoContentDescription(jdesc_output->description()); + ASSERT_TRUE(vcd); + ASSERT_FALSE(vcd->codecs().empty()); + cricket::VideoCodec vp8 = vcd->codecs()[0]; + EXPECT_EQ("VP8", vp8.name); + EXPECT_EQ(99, vp8.id); + cricket::VideoCodec rtx = vcd->codecs()[1]; + EXPECT_EQ("RTX", rtx.name); + EXPECT_EQ(95, rtx.id); + VerifyCodecParameter(rtx.params, "apt", vp8.id); + // VP9 is listed last in the m= line so should come after VP8 and RTX. + cricket::VideoCodec vp9 = vcd->codecs()[2]; + EXPECT_EQ("VP9", vp9.name); + EXPECT_EQ(96, vp9.id); + } + + void TestDeserializeRtcpFb(JsepSessionDescription* jdesc_output, + bool use_wildcard) { + std::string sdp_session_and_audio = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + // Include semantics for WebRTC Media Streams since it is supported by + // this parser, and will be added to the SDP when serializing a session + // description. + "a=msid-semantic: WMS\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "a=rtpmap:111 opus/48000/2\r\n"; + std::string sdp_video = + "m=video 3457 RTP/SAVPF 101\r\n" + "a=rtpmap:101 VP8/90000\r\n" + "a=rtcp-fb:101 goog-lntf\r\n" + "a=rtcp-fb:101 nack\r\n" + "a=rtcp-fb:101 nack pli\r\n" + "a=rtcp-fb:101 goog-remb\r\n"; + std::ostringstream os; + os << sdp_session_and_audio; + os << "a=rtcp-fb:" << (use_wildcard ? "*" : "111") << " nack\r\n"; + os << sdp_video; + os << "a=rtcp-fb:" << (use_wildcard ? "*" : "101") << " ccm fir\r\n"; + std::string sdp = os.str(); + // Deserialize + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, jdesc_output, &error)); + const AudioContentDescription* acd = + GetFirstAudioContentDescription(jdesc_output->description()); + ASSERT_TRUE(acd); + ASSERT_FALSE(acd->codecs().empty()); + cricket::AudioCodec opus = acd->codecs()[0]; + EXPECT_EQ(111, opus.id); + EXPECT_TRUE(opus.HasFeedbackParam(cricket::FeedbackParam( + cricket::kRtcpFbParamNack, cricket::kParamValueEmpty))); + + const VideoContentDescription* vcd = + GetFirstVideoContentDescription(jdesc_output->description()); + ASSERT_TRUE(vcd); + ASSERT_FALSE(vcd->codecs().empty()); + cricket::VideoCodec vp8 = vcd->codecs()[0]; + EXPECT_STREQ(webrtc::JsepSessionDescription::kDefaultVideoCodecName, + vp8.name.c_str()); + EXPECT_EQ(101, vp8.id); + EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam( + cricket::kRtcpFbParamLntf, cricket::kParamValueEmpty))); + EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam( + cricket::kRtcpFbParamNack, cricket::kParamValueEmpty))); + EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam( + cricket::kRtcpFbParamNack, cricket::kRtcpFbNackParamPli))); + EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam( + cricket::kRtcpFbParamRemb, cricket::kParamValueEmpty))); + EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam( + cricket::kRtcpFbParamCcm, cricket::kRtcpFbCcmParamFir))); + } + + // Two SDP messages can mean the same thing but be different strings, e.g. + // some of the lines can be serialized in different order. + // However, a deserialized description can be compared field by field and has + // no order. If deserializer has already been tested, serializing then + // deserializing and comparing JsepSessionDescription will test + // the serializer sufficiently. + void TestSerialize(const JsepSessionDescription& jdesc) { + std::string message = webrtc::SdpSerialize(jdesc); + JsepSessionDescription jdesc_output_des(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(message, &jdesc_output_des, &error)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output_des)); + } + + // Calling 'Initialize' with a copy of the inner SessionDescription will + // create a copy of the JsepSessionDescription without candidates. The + // 'connection address' field, previously set from the candidates, must also + // be reset. + void MakeDescriptionWithoutCandidates(JsepSessionDescription* jdesc) { + rtc::SocketAddress audio_addr("0.0.0.0", 9); + rtc::SocketAddress video_addr("0.0.0.0", 9); + audio_desc_->set_connection_address(audio_addr); + video_desc_->set_connection_address(video_addr); + ASSERT_TRUE(jdesc->Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + } + + protected: + SessionDescription desc_; + AudioContentDescription* audio_desc_; + VideoContentDescription* video_desc_; + SctpDataContentDescription* sctp_desc_; + Candidates candidates_; + std::unique_ptr<IceCandidateInterface> jcandidate_; + JsepSessionDescription jdesc_; +}; + +void TestMismatch(const std::string& string1, const std::string& string2) { + int position = 0; + for (size_t i = 0; i < string1.length() && i < string2.length(); ++i) { + if (string1.c_str()[i] != string2.c_str()[i]) { + position = static_cast<int>(i); + break; + } + } + EXPECT_EQ(0, position) << "Strings mismatch at the " << position + << " character\n" + " 1: " + << string1.substr(position, 20) + << "\n" + " 2: " + << string2.substr(position, 20) << "\n"; +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescription) { + // SessionDescription with desc and candidates. + std::string message = webrtc::SdpSerialize(jdesc_); + TestMismatch(std::string(kSdpFullString), message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionEmpty) { + JsepSessionDescription jdesc_empty(kDummyType); + EXPECT_EQ("", webrtc::SdpSerialize(jdesc_empty)); +} + +// This tests serialization of SDP with a=crypto and a=fingerprint, as would be +// the case in a DTLS offer. +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithFingerprint) { + AddFingerprint(); + JsepSessionDescription jdesc_with_fingerprint(kDummyType); + MakeDescriptionWithoutCandidates(&jdesc_with_fingerprint); + std::string message = webrtc::SdpSerialize(jdesc_with_fingerprint); + + std::string sdp_with_fingerprint = kSdpString; + InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_fingerprint); + InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_fingerprint); + + EXPECT_EQ(sdp_with_fingerprint, message); +} + +// This tests serialization of SDP with a=fingerprint with no a=crypto, as would +// be the case in a DTLS answer. +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithFingerprintNoCryptos) { + AddFingerprint(); + RemoveCryptos(); + JsepSessionDescription jdesc_with_fingerprint(kDummyType); + MakeDescriptionWithoutCandidates(&jdesc_with_fingerprint); + std::string message = webrtc::SdpSerialize(jdesc_with_fingerprint); + + std::string sdp_with_fingerprint = kSdpString; + Replace(kAttributeCryptoVoice, "", &sdp_with_fingerprint); + Replace(kAttributeCryptoVideo, "", &sdp_with_fingerprint); + InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_fingerprint); + InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_fingerprint); + + EXPECT_EQ(sdp_with_fingerprint, message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithoutCandidates) { + // JsepSessionDescription with desc but without candidates. + JsepSessionDescription jdesc_no_candidates(kDummyType); + MakeDescriptionWithoutCandidates(&jdesc_no_candidates); + std::string message = webrtc::SdpSerialize(jdesc_no_candidates); + EXPECT_EQ(std::string(kSdpString), message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithBundles) { + ContentGroup group1(cricket::GROUP_TYPE_BUNDLE); + group1.AddContentName(kAudioContentName); + group1.AddContentName(kVideoContentName); + desc_.AddGroup(group1); + ContentGroup group2(cricket::GROUP_TYPE_BUNDLE); + group2.AddContentName(kAudioContentName2); + desc_.AddGroup(group2); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_bundle = kSdpFullString; + InjectAfter(kSessionTime, + "a=group:BUNDLE audio_content_name video_content_name\r\n" + "a=group:BUNDLE audio_content_name_2\r\n", + &sdp_with_bundle); + EXPECT_EQ(sdp_with_bundle, message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithBandwidth) { + VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); + vcd->set_bandwidth(100 * 1000 + 755); // Integer division will drop the 755. + vcd->set_bandwidth_type("AS"); + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + acd->set_bandwidth(555); + acd->set_bandwidth_type("TIAS"); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_bandwidth = kSdpFullString; + InjectAfter("c=IN IP4 74.125.224.39\r\n", "b=AS:100\r\n", + &sdp_with_bandwidth); + InjectAfter("c=IN IP4 74.125.127.126\r\n", "b=TIAS:555\r\n", + &sdp_with_bandwidth); + EXPECT_EQ(sdp_with_bandwidth, message); +} + +// Should default to b=AS if bandwidth_type isn't set. +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithMissingBandwidthType) { + VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); + vcd->set_bandwidth(100 * 1000); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_bandwidth = kSdpFullString; + InjectAfter("c=IN IP4 74.125.224.39\r\n", "b=AS:100\r\n", + &sdp_with_bandwidth); + EXPECT_EQ(sdp_with_bandwidth, message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithIceOptions) { + std::vector<std::string> transport_options; + transport_options.push_back(kIceOption1); + transport_options.push_back(kIceOption3); + AddIceOptions(kAudioContentName, transport_options); + transport_options.clear(); + transport_options.push_back(kIceOption2); + transport_options.push_back(kIceOption3); + AddIceOptions(kVideoContentName, transport_options); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_ice_options = kSdpFullString; + InjectAfter(kAttributeIcePwdVoice, "a=ice-options:iceoption1 iceoption3\r\n", + &sdp_with_ice_options); + InjectAfter(kAttributeIcePwdVideo, "a=ice-options:iceoption2 iceoption3\r\n", + &sdp_with_ice_options); + EXPECT_EQ(sdp_with_ice_options, message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithRecvOnlyContent) { + EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kRecvOnly)); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithSendOnlyContent) { + EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kSendOnly)); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithInactiveContent) { + EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kInactive)); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithAudioRejected) { + EXPECT_TRUE(TestSerializeRejected(true, false)); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithVideoRejected) { + EXPECT_TRUE(TestSerializeRejected(false, true)); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithAudioVideoRejected) { + EXPECT_TRUE(TestSerializeRejected(true, true)); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithSctpDataChannel) { + bool use_sctpmap = true; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jsep_desc(kDummyType); + + MakeDescriptionWithoutCandidates(&jsep_desc); + std::string message = webrtc::SdpSerialize(jsep_desc); + + std::string expected_sdp = kSdpString; + expected_sdp.append(kSdpSctpDataChannelString); + EXPECT_EQ(message, expected_sdp); +} + +void MutateJsepSctpPort(JsepSessionDescription* jdesc, + const SessionDescription& desc, + int port) { + // Take our pre-built session description and change the SCTP port. + std::unique_ptr<cricket::SessionDescription> mutant = desc.Clone(); + SctpDataContentDescription* dcdesc = + mutant->GetContentDescriptionByName(kDataContentName)->as_sctp(); + dcdesc->set_port(port); + ASSERT_TRUE( + jdesc->Initialize(std::move(mutant), kSessionId, kSessionVersion)); +} + +TEST_F(WebRtcSdpTest, SerializeWithSctpDataChannelAndNewPort) { + bool use_sctpmap = true; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jsep_desc(kDummyType); + MakeDescriptionWithoutCandidates(&jsep_desc); + + const int kNewPort = 1234; + MutateJsepSctpPort(&jsep_desc, desc_, kNewPort); + + std::string message = webrtc::SdpSerialize(jsep_desc); + + std::string expected_sdp = kSdpString; + expected_sdp.append(kSdpSctpDataChannelString); + + absl::StrReplaceAll( + {{rtc::ToString(kDefaultSctpPort), rtc::ToString(kNewPort)}}, + &expected_sdp); + + EXPECT_EQ(expected_sdp, message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmapAllowMixed) { + jdesc_.description()->set_extmap_allow_mixed(true); + TestSerialize(jdesc_); +} + +TEST_F(WebRtcSdpTest, SerializeMediaContentDescriptionWithExtmapAllowMixed) { + cricket::MediaContentDescription* video_desc = + jdesc_.description()->GetContentDescriptionByName(kVideoContentName); + ASSERT_TRUE(video_desc); + cricket::MediaContentDescription* audio_desc = + jdesc_.description()->GetContentDescriptionByName(kAudioContentName); + ASSERT_TRUE(audio_desc); + video_desc->set_extmap_allow_mixed_enum( + cricket::MediaContentDescription::kMedia); + audio_desc->set_extmap_allow_mixed_enum( + cricket::MediaContentDescription::kMedia); + TestSerialize(jdesc_); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmap) { + bool encrypted = false; + AddExtmap(encrypted); + JsepSessionDescription desc_with_extmap(kDummyType); + MakeDescriptionWithoutCandidates(&desc_with_extmap); + std::string message = webrtc::SdpSerialize(desc_with_extmap); + + std::string sdp_with_extmap = kSdpString; + InjectAfter("a=mid:audio_content_name\r\n", kExtmap, &sdp_with_extmap); + InjectAfter("a=mid:video_content_name\r\n", kExtmap, &sdp_with_extmap); + + EXPECT_EQ(sdp_with_extmap, message); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmapEncrypted) { + bool encrypted = true; + AddExtmap(encrypted); + JsepSessionDescription desc_with_extmap(kDummyType); + ASSERT_TRUE( + desc_with_extmap.Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + TestSerialize(desc_with_extmap); +} + +TEST_F(WebRtcSdpTest, SerializeCandidates) { + std::string message = webrtc::SdpSerializeCandidate(*jcandidate_); + EXPECT_EQ(std::string(kRawCandidate), message); + + Candidate candidate_with_ufrag(candidates_.front()); + candidate_with_ufrag.set_username("ABC"); + jcandidate_.reset(new JsepIceCandidate(std::string("audio_content_name"), 0, + candidate_with_ufrag)); + message = webrtc::SdpSerializeCandidate(*jcandidate_); + EXPECT_EQ(std::string(kRawCandidate) + " ufrag ABC", message); + + Candidate candidate_with_network_info(candidates_.front()); + candidate_with_network_info.set_network_id(1); + jcandidate_.reset(new JsepIceCandidate(std::string("audio"), 0, + candidate_with_network_info)); + message = webrtc::SdpSerializeCandidate(*jcandidate_); + EXPECT_EQ(std::string(kRawCandidate) + " network-id 1", message); + candidate_with_network_info.set_network_cost(999); + jcandidate_.reset(new JsepIceCandidate(std::string("audio"), 0, + candidate_with_network_info)); + message = webrtc::SdpSerializeCandidate(*jcandidate_); + EXPECT_EQ(std::string(kRawCandidate) + " network-id 1 network-cost 999", + message); +} + +TEST_F(WebRtcSdpTest, SerializeHostnameCandidate) { + rtc::SocketAddress address("a.test", 1234); + cricket::Candidate candidate( + cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp", address, kCandidatePriority, + "", "", LOCAL_PORT_TYPE, kCandidateGeneration, kCandidateFoundation1); + JsepIceCandidate jcandidate(std::string("audio_content_name"), 0, candidate); + std::string message = webrtc::SdpSerializeCandidate(jcandidate); + EXPECT_EQ(std::string(kRawHostnameCandidate), message); +} + +TEST_F(WebRtcSdpTest, SerializeTcpCandidates) { + Candidate candidate(ICE_CANDIDATE_COMPONENT_RTP, "tcp", + rtc::SocketAddress("192.168.1.5", 9), kCandidatePriority, + "", "", LOCAL_PORT_TYPE, kCandidateGeneration, + kCandidateFoundation1); + candidate.set_tcptype(cricket::TCPTYPE_ACTIVE_STR); + std::unique_ptr<IceCandidateInterface> jcandidate( + new JsepIceCandidate(std::string("audio_content_name"), 0, candidate)); + + std::string message = webrtc::SdpSerializeCandidate(*jcandidate); + EXPECT_EQ(std::string(kSdpTcpActiveCandidate), message); +} + +// Test serializing a TCP candidate that came in with a missing tcptype. This +// shouldn't happen according to the spec, but our implementation has been +// accepting this for quite some time, treating it as a passive candidate. +// +// So, we should be able to at least convert such candidates to and from SDP. +// See: bugs.webrtc.org/11423 +TEST_F(WebRtcSdpTest, ParseTcpCandidateWithoutTcptype) { + std::string missing_tcptype = + "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9999 typ host"; + JsepIceCandidate jcandidate(kDummyMid, kDummyIndex); + EXPECT_TRUE(SdpDeserializeCandidate(missing_tcptype, &jcandidate)); + + EXPECT_EQ(std::string(cricket::TCPTYPE_PASSIVE_STR), + jcandidate.candidate().tcptype()); +} + +TEST_F(WebRtcSdpTest, ParseSslTcpCandidate) { + std::string ssltcp = + "candidate:a0+B/1 1 ssltcp 2130706432 192.168.1.5 9999 typ host tcptype " + "passive"; + JsepIceCandidate jcandidate(kDummyMid, kDummyIndex); + EXPECT_TRUE(SdpDeserializeCandidate(ssltcp, &jcandidate)); + + EXPECT_EQ(std::string("ssltcp"), jcandidate.candidate().protocol()); +} + +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithH264) { + cricket::VideoCodec h264_codec("H264"); + h264_codec.SetParam("profile-level-id", "42e01f"); + h264_codec.SetParam("level-asymmetry-allowed", "1"); + h264_codec.SetParam("packetization-mode", "1"); + video_desc_->AddCodec(h264_codec); + + jdesc_.Initialize(desc_.Clone(), kSessionId, kSessionVersion); + + std::string message = webrtc::SdpSerialize(jdesc_); + size_t after_pt = message.find(" H264/90000"); + ASSERT_NE(after_pt, std::string::npos); + size_t before_pt = message.rfind("a=rtpmap:", after_pt); + ASSERT_NE(before_pt, std::string::npos); + before_pt += strlen("a=rtpmap:"); + std::string pt = message.substr(before_pt, after_pt - before_pt); + // TODO(hta): Check if payload type `pt` occurs in the m=video line. + std::string to_find = "a=fmtp:" + pt + " "; + size_t fmtp_pos = message.find(to_find); + ASSERT_NE(std::string::npos, fmtp_pos) << "Failed to find " << to_find; + size_t fmtp_endpos = message.find('\n', fmtp_pos); + ASSERT_NE(std::string::npos, fmtp_endpos); + std::string fmtp_value = message.substr(fmtp_pos, fmtp_endpos); + EXPECT_NE(std::string::npos, fmtp_value.find("level-asymmetry-allowed=1")); + EXPECT_NE(std::string::npos, fmtp_value.find("packetization-mode=1")); + EXPECT_NE(std::string::npos, fmtp_value.find("profile-level-id=42e01f")); + // Check that there are no spaces after semicolons. + // https://bugs.webrtc.org/5793 + EXPECT_EQ(std::string::npos, fmtp_value.find("; ")); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescription) { + JsepSessionDescription jdesc(kDummyType); + // Deserialize + EXPECT_TRUE(SdpDeserialize(kSdpFullString, &jdesc)); + // Verify + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutMline) { + JsepSessionDescription jdesc(kDummyType); + const char kSdpWithoutMline[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "a=msid-semantic: WMS local_stream_1 local_stream_2\r\n"; + // Deserialize + EXPECT_TRUE(SdpDeserialize(kSdpWithoutMline, &jdesc)); + EXPECT_EQ(0u, jdesc.description()->contents().size()); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCarriageReturn) { + JsepSessionDescription jdesc(kDummyType); + std::string sdp_without_carriage_return = kSdpFullString; + Replace("\r\n", "\n", &sdp_without_carriage_return); + // Deserialize + EXPECT_TRUE(SdpDeserialize(sdp_without_carriage_return, &jdesc)); + // Verify + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCandidates) { + // SessionDescription with desc but without candidates. + JsepSessionDescription jdesc_no_candidates(kDummyType); + ASSERT_TRUE(jdesc_no_candidates.Initialize(desc_.Clone(), kSessionId, + kSessionVersion)); + JsepSessionDescription new_jdesc(kDummyType); + EXPECT_TRUE(SdpDeserialize(kSdpString, &new_jdesc)); + EXPECT_TRUE(CompareSessionDescription(jdesc_no_candidates, new_jdesc)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutRtpmap) { + static const char kSdpNoRtpmapString[] = + "v=0\r\n" + "o=- 11 22 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 49232 RTP/AVP 0 18 103\r\n" + // Codec that doesn't appear in the m= line will be ignored. + "a=rtpmap:104 ISAC/32000\r\n" + // The rtpmap line for static payload codec is optional. + "a=rtpmap:18 G729/8000\r\n" + "a=rtpmap:103 ISAC/16000\r\n"; + + JsepSessionDescription jdesc(kDummyType); + EXPECT_TRUE(SdpDeserialize(kSdpNoRtpmapString, &jdesc)); + cricket::AudioContentDescription* audio = + cricket::GetFirstAudioContentDescription(jdesc.description()); + AudioCodecs ref_codecs; + // The codecs in the AudioContentDescription should be in the same order as + // the payload types (<fmt>s) on the m= line. + ref_codecs.push_back(AudioCodec(0, "PCMU", 8000, 0, 1)); + ref_codecs.push_back(AudioCodec(18, "G729", 8000, 0, 1)); + ref_codecs.push_back(AudioCodec(103, "ISAC", 16000, 0, 1)); + EXPECT_EQ(ref_codecs, audio->codecs()); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutRtpmapButWithFmtp) { + static const char kSdpNoRtpmapString[] = + "v=0\r\n" + "o=- 11 22 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 49232 RTP/AVP 18 103\r\n" + "a=fmtp:18 annexb=yes\r\n" + "a=rtpmap:103 ISAC/16000\r\n"; + + JsepSessionDescription jdesc(kDummyType); + EXPECT_TRUE(SdpDeserialize(kSdpNoRtpmapString, &jdesc)); + cricket::AudioContentDescription* audio = + cricket::GetFirstAudioContentDescription(jdesc.description()); + + cricket::AudioCodec g729 = audio->codecs()[0]; + EXPECT_EQ("G729", g729.name); + EXPECT_EQ(8000, g729.clockrate); + EXPECT_EQ(18, g729.id); + cricket::CodecParameterMap::iterator found = g729.params.find("annexb"); + ASSERT_TRUE(found != g729.params.end()); + EXPECT_EQ(found->second, "yes"); + + cricket::AudioCodec isac = audio->codecs()[1]; + EXPECT_EQ("ISAC", isac.name); + EXPECT_EQ(103, isac.id); + EXPECT_EQ(16000, isac.clockrate); +} + +// Ensure that we can deserialize SDP with a=fingerprint properly. +TEST_F(WebRtcSdpTest, DeserializeJsepSessionDescriptionWithFingerprint) { + // Add a DTLS a=fingerprint attribute to our session description. + AddFingerprint(); + JsepSessionDescription new_jdesc(kDummyType); + ASSERT_TRUE(new_jdesc.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + + JsepSessionDescription jdesc_with_fingerprint(kDummyType); + std::string sdp_with_fingerprint = kSdpString; + InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_fingerprint); + InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_fingerprint); + EXPECT_TRUE(SdpDeserialize(sdp_with_fingerprint, &jdesc_with_fingerprint)); + EXPECT_TRUE(CompareSessionDescription(jdesc_with_fingerprint, new_jdesc)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithBundle) { + JsepSessionDescription jdesc_with_bundle(kDummyType); + std::string sdp_with_bundle = kSdpFullString; + InjectAfter(kSessionTime, + "a=group:BUNDLE audio_content_name video_content_name\r\n", + &sdp_with_bundle); + EXPECT_TRUE(SdpDeserialize(sdp_with_bundle, &jdesc_with_bundle)); + ContentGroup group(cricket::GROUP_TYPE_BUNDLE); + group.AddContentName(kAudioContentName); + group.AddContentName(kVideoContentName); + desc_.AddGroup(group); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bundle)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithBandwidth) { + JsepSessionDescription jdesc_with_bandwidth(kDummyType); + std::string sdp_with_bandwidth = kSdpFullString; + InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", "b=AS:100\r\n", + &sdp_with_bandwidth); + InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", "b=AS:50\r\n", + &sdp_with_bandwidth); + EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth)); + VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); + vcd->set_bandwidth(100 * 1000); + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + acd->set_bandwidth(50 * 1000); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bandwidth)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithTiasBandwidth) { + JsepSessionDescription jdesc_with_bandwidth(kDummyType); + std::string sdp_with_bandwidth = kSdpFullString; + InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", "b=TIAS:100000\r\n", + &sdp_with_bandwidth); + InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", "b=TIAS:50000\r\n", + &sdp_with_bandwidth); + EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth)); + VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); + vcd->set_bandwidth(100 * 1000); + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + acd->set_bandwidth(50 * 1000); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bandwidth)); +} + +TEST_F(WebRtcSdpTest, + DeserializeSessionDescriptionWithUnknownBandwidthModifier) { + JsepSessionDescription jdesc_with_bandwidth(kDummyType); + std::string sdp_with_bandwidth = kSdpFullString; + InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", + "b=unknown:100000\r\n", &sdp_with_bandwidth); + InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", + "b=unknown:50000\r\n", &sdp_with_bandwidth); + EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth)); + VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); + vcd->set_bandwidth(-1); + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + acd->set_bandwidth(-1); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bandwidth)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithIceOptions) { + JsepSessionDescription jdesc_with_ice_options(kDummyType); + std::string sdp_with_ice_options = kSdpFullString; + InjectAfter(kSessionTime, "a=ice-options:iceoption3\r\n", + &sdp_with_ice_options); + InjectAfter(kAttributeIcePwdVoice, "a=ice-options:iceoption1\r\n", + &sdp_with_ice_options); + InjectAfter(kAttributeIcePwdVideo, "a=ice-options:iceoption2\r\n", + &sdp_with_ice_options); + EXPECT_TRUE(SdpDeserialize(sdp_with_ice_options, &jdesc_with_ice_options)); + std::vector<std::string> transport_options; + transport_options.push_back(kIceOption3); + transport_options.push_back(kIceOption1); + AddIceOptions(kAudioContentName, transport_options); + transport_options.clear(); + transport_options.push_back(kIceOption3); + transport_options.push_back(kIceOption2); + AddIceOptions(kVideoContentName, transport_options); + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_ice_options)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithUfragPwd) { + // Remove the original ice-ufrag and ice-pwd + JsepSessionDescription jdesc_with_ufrag_pwd(kDummyType); + std::string sdp_with_ufrag_pwd = kSdpFullString; + EXPECT_TRUE(RemoveCandidateUfragPwd(&sdp_with_ufrag_pwd)); + // Add session level ufrag and pwd + InjectAfter(kSessionTime, + "a=ice-pwd:session+level+icepwd\r\n" + "a=ice-ufrag:session+level+iceufrag\r\n", + &sdp_with_ufrag_pwd); + // Add media level ufrag and pwd for audio + InjectAfter( + "a=mid:audio_content_name\r\n", + "a=ice-pwd:media+level+icepwd\r\na=ice-ufrag:media+level+iceufrag\r\n", + &sdp_with_ufrag_pwd); + // Update the candidate ufrag and pwd to the expected ones. + EXPECT_TRUE(UpdateCandidateUfragPwd(&jdesc_, 0, "media+level+iceufrag", + "media+level+icepwd")); + EXPECT_TRUE(UpdateCandidateUfragPwd(&jdesc_, 1, "session+level+iceufrag", + "session+level+icepwd")); + EXPECT_TRUE(SdpDeserialize(sdp_with_ufrag_pwd, &jdesc_with_ufrag_pwd)); + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_ufrag_pwd)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRecvOnlyContent) { + EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kRecvOnly)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithSendOnlyContent) { + EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kSendOnly)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithInactiveContent) { + EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kInactive)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedAudio) { + EXPECT_TRUE(TestDeserializeRejected(true, false)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedVideo) { + EXPECT_TRUE(TestDeserializeRejected(false, true)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedAudioVideo) { + EXPECT_TRUE(TestDeserializeRejected(true, true)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithExtmapAllowMixed) { + jdesc_.description()->set_extmap_allow_mixed(true); + std::string sdp_with_extmap_allow_mixed = kSdpFullString; + // Deserialize + JsepSessionDescription jdesc_deserialized(kDummyType); + ASSERT_TRUE(SdpDeserialize(sdp_with_extmap_allow_mixed, &jdesc_deserialized)); + // Verify + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_deserialized)); +} + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutExtmapAllowMixed) { + jdesc_.description()->set_extmap_allow_mixed(false); + std::string sdp_without_extmap_allow_mixed = kSdpFullString; + Replace(kExtmapAllowMixed, "", &sdp_without_extmap_allow_mixed); + // Deserialize + JsepSessionDescription jdesc_deserialized(kDummyType); + ASSERT_TRUE( + SdpDeserialize(sdp_without_extmap_allow_mixed, &jdesc_deserialized)); + // Verify + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_deserialized)); +} + +TEST_F(WebRtcSdpTest, DeserializeMediaContentDescriptionWithExtmapAllowMixed) { + cricket::MediaContentDescription* video_desc = + jdesc_.description()->GetContentDescriptionByName(kVideoContentName); + ASSERT_TRUE(video_desc); + cricket::MediaContentDescription* audio_desc = + jdesc_.description()->GetContentDescriptionByName(kAudioContentName); + ASSERT_TRUE(audio_desc); + video_desc->set_extmap_allow_mixed_enum( + cricket::MediaContentDescription::kMedia); + audio_desc->set_extmap_allow_mixed_enum( + cricket::MediaContentDescription::kMedia); + + std::string sdp_with_extmap_allow_mixed = kSdpFullString; + InjectAfter("a=mid:audio_content_name\r\n", kExtmapAllowMixed, + &sdp_with_extmap_allow_mixed); + InjectAfter("a=mid:video_content_name\r\n", kExtmapAllowMixed, + &sdp_with_extmap_allow_mixed); + + // Deserialize + JsepSessionDescription jdesc_deserialized(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp_with_extmap_allow_mixed, &jdesc_deserialized)); + // Verify + EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_deserialized)); +} + +TEST_F(WebRtcSdpTest, DeserializeCandidate) { + JsepIceCandidate jcandidate(kDummyMid, kDummyIndex); + + std::string sdp = kSdpOneCandidate; + EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate)); + EXPECT_EQ(kDummyMid, jcandidate.sdp_mid()); + EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index()); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(jcandidate_->candidate())); + EXPECT_EQ(0, jcandidate.candidate().network_cost()); + + // Candidate line without generation extension. + sdp = kSdpOneCandidate; + Replace(" generation 2", "", &sdp); + EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate)); + EXPECT_EQ(kDummyMid, jcandidate.sdp_mid()); + EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index()); + Candidate expected = jcandidate_->candidate(); + expected.set_generation(0); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected)); + + // Candidate with network id and/or cost. + sdp = kSdpOneCandidate; + Replace(" generation 2", " generation 2 network-id 2", &sdp); + EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate)); + EXPECT_EQ(kDummyMid, jcandidate.sdp_mid()); + EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index()); + expected = jcandidate_->candidate(); + expected.set_network_id(2); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected)); + EXPECT_EQ(0, jcandidate.candidate().network_cost()); + // Add network cost + Replace(" network-id 2", " network-id 2 network-cost 9", &sdp); + EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate)); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected)); + EXPECT_EQ(9, jcandidate.candidate().network_cost()); + + sdp = kSdpTcpActiveCandidate; + EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate)); + // Make a cricket::Candidate equivalent to kSdpTcpCandidate string. + Candidate candidate(ICE_CANDIDATE_COMPONENT_RTP, "tcp", + rtc::SocketAddress("192.168.1.5", 9), kCandidatePriority, + "", "", LOCAL_PORT_TYPE, kCandidateGeneration, + kCandidateFoundation1); + std::unique_ptr<IceCandidateInterface> jcandidate_template( + new JsepIceCandidate(std::string("audio_content_name"), 0, candidate)); + EXPECT_TRUE( + jcandidate.candidate().IsEquivalent(jcandidate_template->candidate())); + sdp = kSdpTcpPassiveCandidate; + EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate)); + sdp = kSdpTcpSOCandidate; + EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate)); +} + +// This test verifies the deserialization of candidate-attribute +// as per RFC 5245. Candidate-attribute will be of the format +// candidate:<blah>. This format will be used when candidates +// are trickled. +TEST_F(WebRtcSdpTest, DeserializeRawCandidateAttribute) { + JsepIceCandidate jcandidate(kDummyMid, kDummyIndex); + + std::string candidate_attribute = kRawCandidate; + EXPECT_TRUE(SdpDeserializeCandidate(candidate_attribute, &jcandidate)); + EXPECT_EQ(kDummyMid, jcandidate.sdp_mid()); + EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index()); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(jcandidate_->candidate())); + EXPECT_EQ(2u, jcandidate.candidate().generation()); + + // Candidate line without generation extension. + candidate_attribute = kRawCandidate; + Replace(" generation 2", "", &candidate_attribute); + EXPECT_TRUE(SdpDeserializeCandidate(candidate_attribute, &jcandidate)); + EXPECT_EQ(kDummyMid, jcandidate.sdp_mid()); + EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index()); + Candidate expected = jcandidate_->candidate(); + expected.set_generation(0); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected)); + + // Candidate line without candidate: + candidate_attribute = kRawCandidate; + Replace("candidate:", "", &candidate_attribute); + EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate)); + + // Candidate line with IPV6 address. + EXPECT_TRUE(SdpDeserializeCandidate(kRawIPV6Candidate, &jcandidate)); + + // Candidate line with hostname address. + EXPECT_TRUE(SdpDeserializeCandidate(kRawHostnameCandidate, &jcandidate)); +} + +// This test verifies that the deserialization of an invalid candidate string +// fails. +TEST_F(WebRtcSdpTest, DeserializeInvalidCandidiate) { + JsepIceCandidate jcandidate(kDummyMid, kDummyIndex); + + std::string candidate_attribute = kRawCandidate; + candidate_attribute.replace(0, 1, "x"); + EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate)); + + candidate_attribute = kSdpOneCandidate; + candidate_attribute.replace(0, 1, "x"); + EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate)); + + candidate_attribute = kRawCandidate; + candidate_attribute.append("\r\n"); + candidate_attribute.append(kRawCandidate); + EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate)); + + EXPECT_FALSE(SdpDeserializeCandidate(kSdpTcpInvalidCandidate, &jcandidate)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannels) { + bool use_sctpmap = true; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + + std::string sdp_with_data = kSdpString; + sdp_with_data.append(kSdpSctpDataChannelString); + JsepSessionDescription jdesc_output(kDummyType); + + // Verify with UDP/DTLS/SCTP (already in kSdpSctpDataChannelString). + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); + + // Verify with DTLS/SCTP. + sdp_with_data.replace(sdp_with_data.find(kUdpDtlsSctp), strlen(kUdpDtlsSctp), + kDtlsSctp); + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); + + // Verify with TCP/DTLS/SCTP. + sdp_with_data.replace(sdp_with_data.find(kDtlsSctp), strlen(kDtlsSctp), + kTcpDtlsSctp); + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpPort) { + bool use_sctpmap = false; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + + std::string sdp_with_data = kSdpString; + sdp_with_data.append(kSdpSctpDataChannelStringWithSctpPort); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpColonPort) { + bool use_sctpmap = false; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + + std::string sdp_with_data = kSdpString; + sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsButWrongMediaType) { + bool use_sctpmap = true; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + + std::string sdp = kSdpSessionString; + sdp += kSdpSctpDataChannelString; + + const char needle[] = "m=application "; + sdp.replace(sdp.find(needle), strlen(needle), "m=application:bogus "); + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + + EXPECT_EQ(1u, jdesc_output.description()->contents().size()); + EXPECT_TRUE(jdesc_output.description()->contents()[0].rejected); +} + +// Helper function to set the max-message-size parameter in the +// SCTP data codec. +void MutateJsepSctpMaxMessageSize(const SessionDescription& desc, + int new_value, + JsepSessionDescription* jdesc) { + std::unique_ptr<cricket::SessionDescription> mutant = desc.Clone(); + SctpDataContentDescription* dcdesc = + mutant->GetContentDescriptionByName(kDataContentName)->as_sctp(); + dcdesc->set_max_message_size(new_value); + jdesc->Initialize(std::move(mutant), kSessionId, kSessionVersion); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithMaxMessageSize) { + bool use_sctpmap = false; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + std::string sdp_with_data = kSdpString; + + sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort); + sdp_with_data.append("a=max-message-size:12345\r\n"); + MutateJsepSctpMaxMessageSize(desc_, 12345, &jdesc); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +TEST_F(WebRtcSdpTest, SerializeSdpWithSctpDataChannelWithMaxMessageSize) { + bool use_sctpmap = false; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + MutateJsepSctpMaxMessageSize(desc_, 12345, &jdesc); + std::string message = webrtc::SdpSerialize(jdesc); + EXPECT_NE(std::string::npos, + message.find("\r\na=max-message-size:12345\r\n")); + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(message, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +TEST_F(WebRtcSdpTest, + SerializeSdpWithSctpDataChannelWithDefaultMaxMessageSize) { + // https://tools.ietf.org/html/draft-ietf-mmusic-sctp-sdp-26#section-6 + // The default max message size is 64K. + bool use_sctpmap = false; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + MutateJsepSctpMaxMessageSize(desc_, 65536, &jdesc); + std::string message = webrtc::SdpSerialize(jdesc); + EXPECT_EQ(std::string::npos, message.find("\r\na=max-message-size:")); + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(message, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +// Test to check the behaviour if sctp-port is specified +// on the m= line and in a=sctp-port. +TEST_F(WebRtcSdpTest, DeserializeSdpWithMultiSctpPort) { + bool use_sctpmap = true; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + + std::string sdp_with_data = kSdpString; + // Append m= attributes + sdp_with_data.append(kSdpSctpDataChannelString); + // Append a=sctp-port attribute + sdp_with_data.append("a=sctp-port 5000\r\n"); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_FALSE(SdpDeserialize(sdp_with_data, &jdesc_output)); +} + +// Test behavior if a=rtpmap occurs in an SCTP section. +TEST_F(WebRtcSdpTest, DeserializeSdpWithRtpmapAttribute) { + std::string sdp_with_data = kSdpString; + // Append m= attributes + sdp_with_data.append(kSdpSctpDataChannelString); + // Append a=rtpmap attribute + sdp_with_data.append("a=rtpmap:111 opus/48000/2\r\n"); + JsepSessionDescription jdesc_output(kDummyType); + // Correct behavior is to ignore the extra attribute. + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithStrangeApplicationProtocolNames) { + static const char* bad_strings[] = { + "DTLS/SCTPRTP/", "obviously-bogus", "UDP/TL/RTSP/SAVPF", + "UDP/TL/RTSP/S", "DTLS/SCTP/RTP/FOO", "obviously-bogus/RTP/"}; + for (auto proto : bad_strings) { + std::string sdp_with_data = kSdpString; + sdp_with_data.append("m=application 9 "); + sdp_with_data.append(proto); + sdp_with_data.append(" 47\r\n"); + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(sdp_with_data, &jdesc_output)) + << "Parsing should have failed on " << proto; + } +} + +// For crbug/344475. +TEST_F(WebRtcSdpTest, DeserializeSdpWithCorruptedSctpDataChannels) { + std::string sdp_with_data = kSdpString; + sdp_with_data.append(kSdpSctpDataChannelString); + // Remove the "\n" at the end. + sdp_with_data = sdp_with_data.substr(0, sdp_with_data.size() - 1); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_FALSE(SdpDeserialize(sdp_with_data, &jdesc_output)); + // No crash is a pass. +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelAndUnusualPort) { + bool use_sctpmap = true; + AddSctpDataChannel(use_sctpmap); + + // First setup the expected JsepSessionDescription. + JsepSessionDescription jdesc(kDummyType); + MutateJsepSctpPort(&jdesc, desc_, kUnusualSctpPort); + + // Then get the deserialized JsepSessionDescription. + std::string sdp_with_data = kSdpString; + sdp_with_data.append(kSdpSctpDataChannelString); + absl::StrReplaceAll( + {{rtc::ToString(kDefaultSctpPort), rtc::ToString(kUnusualSctpPort)}}, + &sdp_with_data); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +TEST_F(WebRtcSdpTest, + DeserializeSdpWithSctpDataChannelAndUnusualPortInAttribute) { + bool use_sctpmap = false; + AddSctpDataChannel(use_sctpmap); + + JsepSessionDescription jdesc(kDummyType); + MutateJsepSctpPort(&jdesc, desc_, kUnusualSctpPort); + + // We need to test the deserialized JsepSessionDescription from + // kSdpSctpDataChannelStringWithSctpPort for + // draft-ietf-mmusic-sctp-sdp-07 + // a=sctp-port + std::string sdp_with_data = kSdpString; + sdp_with_data.append(kSdpSctpDataChannelStringWithSctpPort); + absl::StrReplaceAll( + {{rtc::ToString(kDefaultSctpPort), rtc::ToString(kUnusualSctpPort)}}, + &sdp_with_data); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsAndBandwidth) { + bool use_sctpmap = true; + AddSctpDataChannel(use_sctpmap); + JsepSessionDescription jdesc(kDummyType); + SctpDataContentDescription* dcd = GetFirstSctpDataContentDescription(&desc_); + dcd->set_bandwidth(100 * 1000); + ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion)); + + std::string sdp_with_bandwidth = kSdpString; + sdp_with_bandwidth.append(kSdpSctpDataChannelString); + InjectAfter("a=mid:data_content_name\r\n", "b=AS:100\r\n", + &sdp_with_bandwidth); + JsepSessionDescription jdesc_with_bandwidth(kDummyType); + + // SCTP has congestion control, so we shouldn't limit the bandwidth + // as we do for RTP. + EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth)); + EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_with_bandwidth)); +} + +class WebRtcSdpExtmapTest : public WebRtcSdpTest, + public ::testing::WithParamInterface<bool> {}; + +TEST_P(WebRtcSdpExtmapTest, + DeserializeSessionDescriptionWithSessionLevelExtmap) { + bool encrypted = GetParam(); + TestDeserializeExtmap(true, false, encrypted); +} + +TEST_P(WebRtcSdpExtmapTest, DeserializeSessionDescriptionWithMediaLevelExtmap) { + bool encrypted = GetParam(); + TestDeserializeExtmap(false, true, encrypted); +} + +TEST_P(WebRtcSdpExtmapTest, DeserializeSessionDescriptionWithInvalidExtmap) { + bool encrypted = GetParam(); + TestDeserializeExtmap(true, true, encrypted); +} + +INSTANTIATE_TEST_SUITE_P(Encrypted, + WebRtcSdpExtmapTest, + ::testing::Values(false, true)); + +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutEndLineBreak) { + JsepSessionDescription jdesc(kDummyType); + std::string sdp = kSdpFullString; + sdp = sdp.substr(0, sdp.size() - 2); // Remove \r\n at the end. + // Deserialize + SdpParseError error; + EXPECT_FALSE(webrtc::SdpDeserialize(sdp, &jdesc, &error)); + const std::string lastline = "a=ssrc:3 msid:local_stream_1 video_track_id_1"; + EXPECT_EQ(lastline, error.line); + EXPECT_EQ("Invalid SDP line.", error.description); +} + +TEST_F(WebRtcSdpTest, DeserializeCandidateWithDifferentTransport) { + JsepIceCandidate jcandidate(kDummyMid, kDummyIndex); + std::string new_sdp = kSdpOneCandidate; + Replace("udp", "unsupported_transport", &new_sdp); + EXPECT_FALSE(SdpDeserializeCandidate(new_sdp, &jcandidate)); + new_sdp = kSdpOneCandidate; + Replace("udp", "uDP", &new_sdp); + EXPECT_TRUE(SdpDeserializeCandidate(new_sdp, &jcandidate)); + EXPECT_EQ(kDummyMid, jcandidate.sdp_mid()); + EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index()); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(jcandidate_->candidate())); +} + +TEST_F(WebRtcSdpTest, DeserializeCandidateWithUfragPwd) { + JsepIceCandidate jcandidate(kDummyMid, kDummyIndex); + EXPECT_TRUE( + SdpDeserializeCandidate(kSdpOneCandidateWithUfragPwd, &jcandidate)); + EXPECT_EQ(kDummyMid, jcandidate.sdp_mid()); + EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index()); + Candidate ref_candidate = jcandidate_->candidate(); + ref_candidate.set_username("user_rtp"); + ref_candidate.set_password("password_rtp"); + EXPECT_TRUE(jcandidate.candidate().IsEquivalent(ref_candidate)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithConferenceFlag) { + JsepSessionDescription jdesc(kDummyType); + + // Deserialize + EXPECT_TRUE(SdpDeserialize(kSdpConferenceString, &jdesc)); + + // Verify + cricket::AudioContentDescription* audio = + cricket::GetFirstAudioContentDescription(jdesc.description()); + EXPECT_TRUE(audio->conference_mode()); + + cricket::VideoContentDescription* video = + cricket::GetFirstVideoContentDescription(jdesc.description()); + EXPECT_TRUE(video->conference_mode()); +} + +TEST_F(WebRtcSdpTest, SerializeSdpWithConferenceFlag) { + JsepSessionDescription jdesc(kDummyType); + + // We tested deserialization already above, so just test that if we serialize + // and deserialize the flag doesn't disappear. + EXPECT_TRUE(SdpDeserialize(kSdpConferenceString, &jdesc)); + std::string reserialized = webrtc::SdpSerialize(jdesc); + EXPECT_TRUE(SdpDeserialize(reserialized, &jdesc)); + + // Verify. + cricket::AudioContentDescription* audio = + cricket::GetFirstAudioContentDescription(jdesc.description()); + EXPECT_TRUE(audio->conference_mode()); + + cricket::VideoContentDescription* video = + cricket::GetFirstVideoContentDescription(jdesc.description()); + EXPECT_TRUE(video->conference_mode()); +} + +TEST_F(WebRtcSdpTest, SerializeAndDeserializeRemoteNetEstimate) { + { + // By default remote estimates are disabled. + JsepSessionDescription dst(kDummyType); + SdpDeserialize(webrtc::SdpSerialize(jdesc_), &dst); + EXPECT_FALSE(cricket::GetFirstVideoContentDescription(dst.description()) + ->remote_estimate()); + } + { + // When remote estimate is enabled, the setting is propagated via SDP. + cricket::GetFirstVideoContentDescription(jdesc_.description()) + ->set_remote_estimate(true); + JsepSessionDescription dst(kDummyType); + SdpDeserialize(webrtc::SdpSerialize(jdesc_), &dst); + EXPECT_TRUE(cricket::GetFirstVideoContentDescription(dst.description()) + ->remote_estimate()); + } +} + +TEST_F(WebRtcSdpTest, DeserializeBrokenSdp) { + const char kSdpDestroyer[] = "!@#$%^&"; + const char kSdpEmptyType[] = " =candidate"; + const char kSdpEqualAsPlus[] = "a+candidate"; + const char kSdpSpaceAfterEqual[] = "a= candidate"; + const char kSdpUpperType[] = "A=candidate"; + const char kSdpEmptyLine[] = ""; + const char kSdpMissingValue[] = "a="; + + const char kSdpBrokenFingerprint[] = + "a=fingerprint:sha-1 " + "4AAD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB"; + const char kSdpExtraField[] = + "a=fingerprint:sha-1 " + "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB XXX"; + const char kSdpMissingSpace[] = + "a=fingerprint:sha-1" + "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB"; + // MD5 is not allowed in fingerprints. + const char kSdpMd5[] = + "a=fingerprint:md5 " + "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B"; + + // Broken session description + ExpectParseFailure("v=", kSdpDestroyer); + ExpectParseFailure("o=", kSdpDestroyer); + ExpectParseFailure("s=-", kSdpDestroyer); + // Broken time description + ExpectParseFailure("t=", kSdpDestroyer); + + // Broken media description + ExpectParseFailure("m=audio", "c=IN IP4 74.125.224.39"); + ExpectParseFailure("m=video", kSdpDestroyer); + ExpectParseFailure("m=", "c=IN IP4 74.125.224.39"); + + // Invalid lines + ExpectParseFailure("a=candidate", kSdpEmptyType); + ExpectParseFailure("a=candidate", kSdpEqualAsPlus); + ExpectParseFailure("a=candidate", kSdpSpaceAfterEqual); + ExpectParseFailure("a=candidate", kSdpUpperType); + + // Bogus fingerprint replacing a=sendrev. We selected this attribute + // because it's orthogonal to what we are replacing and hence + // safe. + ExpectParseFailure("a=sendrecv", kSdpBrokenFingerprint); + ExpectParseFailure("a=sendrecv", kSdpExtraField); + ExpectParseFailure("a=sendrecv", kSdpMissingSpace); + ExpectParseFailure("a=sendrecv", kSdpMd5); + + // Empty Line + ExpectParseFailure("a=rtcp:2347 IN IP4 74.125.127.126", kSdpEmptyLine); + ExpectParseFailure("a=rtcp:2347 IN IP4 74.125.127.126", kSdpMissingValue); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithInvalidAttributeValue) { + // ssrc + ExpectParseFailure("a=ssrc:1", "a=ssrc:badvalue"); + ExpectParseFailure("a=ssrc-group:FEC 2 3", "a=ssrc-group:FEC badvalue 3"); + // crypto + ExpectParseFailure("a=crypto:1 ", "a=crypto:badvalue "); + // rtpmap + ExpectParseFailure("a=rtpmap:111 ", "a=rtpmap:badvalue "); + ExpectParseFailure("opus/48000/2", "opus/badvalue/2"); + ExpectParseFailure("opus/48000/2", "opus/48000/badvalue"); + // candidate + ExpectParseFailure("1 udp 2130706432", "badvalue udp 2130706432"); + ExpectParseFailure("1 udp 2130706432", "1 udp badvalue"); + ExpectParseFailure("192.168.1.5 1234", "192.168.1.5 badvalue"); + ExpectParseFailure("rport 2346", "rport badvalue"); + ExpectParseFailure("rport 2346 generation 2", + "rport 2346 generation badvalue"); + // m line + ExpectParseFailure("m=audio 2345 RTP/SAVPF 111 103 104", + "m=audio 2345 RTP/SAVPF 111 badvalue 104"); + + // bandwidth + ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", + "b=AS:badvalue\r\n", "b=AS:badvalue"); + ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS\r\n", + "b=AS"); + ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS:\r\n", + "b=AS:"); + ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", + "b=AS:12:34\r\n", "b=AS:12:34"); + + // rtcp-fb + ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", + "a=rtcp-fb:badvalue nack\r\n", + "a=rtcp-fb:badvalue nack"); + // extmap + ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", + "a=extmap:badvalue http://example.com\r\n", + "a=extmap:badvalue http://example.com"); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithReorderedPltypes) { + JsepSessionDescription jdesc_output(kDummyType); + + const char kSdpWithReorderedPlTypesString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 104 103\r\n" // Pl type 104 preferred. + "a=rtpmap:111 opus/48000/2\r\n" // Pltype 111 listed before 103 and 104 + // in the map. + "a=rtpmap:103 ISAC/16000\r\n" // Pltype 103 listed before 104 in the map. + "a=rtpmap:104 ISAC/32000\r\n"; + + // Deserialize + EXPECT_TRUE(SdpDeserialize(kSdpWithReorderedPlTypesString, &jdesc_output)); + + const AudioContentDescription* acd = + GetFirstAudioContentDescription(jdesc_output.description()); + ASSERT_TRUE(acd); + ASSERT_FALSE(acd->codecs().empty()); + EXPECT_EQ("ISAC", acd->codecs()[0].name); + EXPECT_EQ(32000, acd->codecs()[0].clockrate); + EXPECT_EQ(104, acd->codecs()[0].id); +} + +TEST_F(WebRtcSdpTest, DeserializeSerializeCodecParams) { + JsepSessionDescription jdesc_output(kDummyType); + CodecParams params; + params.max_ptime = 40; + params.ptime = 30; + params.min_ptime = 10; + params.sprop_stereo = 1; + params.stereo = 1; + params.useinband = 1; + params.maxaveragebitrate = 128000; + TestDeserializeCodecParams(params, &jdesc_output); + TestSerialize(jdesc_output); +} + +TEST_F(WebRtcSdpTest, DeserializeSerializeRtcpFb) { + const bool kUseWildcard = false; + JsepSessionDescription jdesc_output(kDummyType); + TestDeserializeRtcpFb(&jdesc_output, kUseWildcard); + TestSerialize(jdesc_output); +} + +TEST_F(WebRtcSdpTest, DeserializeSerializeRtcpFbWildcard) { + const bool kUseWildcard = true; + JsepSessionDescription jdesc_output(kDummyType); + TestDeserializeRtcpFb(&jdesc_output, kUseWildcard); + TestSerialize(jdesc_output); +} + +TEST_F(WebRtcSdpTest, DeserializeVideoFmtp) { + JsepSessionDescription jdesc_output(kDummyType); + + const char kSdpWithFmtpString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 3457 RTP/SAVPF 120\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=fmtp:120 x-google-min-bitrate=10;x-google-max-quantization=40\r\n"; + + // Deserialize + SdpParseError error; + EXPECT_TRUE( + webrtc::SdpDeserialize(kSdpWithFmtpString, &jdesc_output, &error)); + + const VideoContentDescription* vcd = + GetFirstVideoContentDescription(jdesc_output.description()); + ASSERT_TRUE(vcd); + ASSERT_FALSE(vcd->codecs().empty()); + cricket::VideoCodec vp8 = vcd->codecs()[0]; + EXPECT_EQ("VP8", vp8.name); + EXPECT_EQ(120, vp8.id); + cricket::CodecParameterMap::iterator found = + vp8.params.find("x-google-min-bitrate"); + ASSERT_TRUE(found != vp8.params.end()); + EXPECT_EQ(found->second, "10"); + found = vp8.params.find("x-google-max-quantization"); + ASSERT_TRUE(found != vp8.params.end()); + EXPECT_EQ(found->second, "40"); +} + +TEST_F(WebRtcSdpTest, DeserializeVideoFmtpWithSprops) { + JsepSessionDescription jdesc_output(kDummyType); + + const char kSdpWithFmtpString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 49170 RTP/AVP 98\r\n" + "a=rtpmap:98 H264/90000\r\n" + "a=fmtp:98 profile-level-id=42A01E; " + "sprop-parameter-sets=Z0IACpZTBYmI,aMljiA==\r\n"; + + // Deserialize. + SdpParseError error; + EXPECT_TRUE( + webrtc::SdpDeserialize(kSdpWithFmtpString, &jdesc_output, &error)); + + const VideoContentDescription* vcd = + GetFirstVideoContentDescription(jdesc_output.description()); + ASSERT_TRUE(vcd); + ASSERT_FALSE(vcd->codecs().empty()); + cricket::VideoCodec h264 = vcd->codecs()[0]; + EXPECT_EQ("H264", h264.name); + EXPECT_EQ(98, h264.id); + cricket::CodecParameterMap::const_iterator found = + h264.params.find("profile-level-id"); + ASSERT_TRUE(found != h264.params.end()); + EXPECT_EQ(found->second, "42A01E"); + found = h264.params.find("sprop-parameter-sets"); + ASSERT_TRUE(found != h264.params.end()); + EXPECT_EQ(found->second, "Z0IACpZTBYmI,aMljiA=="); +} + +TEST_F(WebRtcSdpTest, DeserializeVideoFmtpWithSpace) { + JsepSessionDescription jdesc_output(kDummyType); + + const char kSdpWithFmtpString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 3457 RTP/SAVPF 120\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=fmtp:120 x-google-min-bitrate=10; x-google-max-quantization=40\r\n"; + + // Deserialize + SdpParseError error; + EXPECT_TRUE( + webrtc::SdpDeserialize(kSdpWithFmtpString, &jdesc_output, &error)); + + const VideoContentDescription* vcd = + GetFirstVideoContentDescription(jdesc_output.description()); + ASSERT_TRUE(vcd); + ASSERT_FALSE(vcd->codecs().empty()); + cricket::VideoCodec vp8 = vcd->codecs()[0]; + EXPECT_EQ("VP8", vp8.name); + EXPECT_EQ(120, vp8.id); + cricket::CodecParameterMap::iterator found = + vp8.params.find("x-google-min-bitrate"); + ASSERT_TRUE(found != vp8.params.end()); + EXPECT_EQ(found->second, "10"); + found = vp8.params.find("x-google-max-quantization"); + ASSERT_TRUE(found != vp8.params.end()); + EXPECT_EQ(found->second, "40"); +} + +TEST_F(WebRtcSdpTest, DeserializePacketizationAttributeWithIllegalValue) { + JsepSessionDescription jdesc_output(kDummyType); + + const char kSdpWithPacketizationString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=packetization:111 unknownpacketizationattributeforaudio\r\n" + "m=video 3457 RTP/SAVPF 120 121 122\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=packetization:120 raw\r\n" + "a=rtpmap:121 VP9/90000\r\n" + "a=rtpmap:122 H264/90000\r\n" + "a=packetization:122 unknownpacketizationattributevalue\r\n"; + + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(kSdpWithPacketizationString, &jdesc_output, + &error)); + + AudioContentDescription* acd = + GetFirstAudioContentDescription(jdesc_output.description()); + ASSERT_TRUE(acd); + ASSERT_THAT(acd->codecs(), testing::SizeIs(1)); + cricket::AudioCodec opus = acd->codecs()[0]; + EXPECT_EQ(opus.name, "opus"); + EXPECT_EQ(opus.id, 111); + + const VideoContentDescription* vcd = + GetFirstVideoContentDescription(jdesc_output.description()); + ASSERT_TRUE(vcd); + ASSERT_THAT(vcd->codecs(), testing::SizeIs(3)); + cricket::VideoCodec vp8 = vcd->codecs()[0]; + EXPECT_EQ(vp8.name, "VP8"); + EXPECT_EQ(vp8.id, 120); + EXPECT_EQ(vp8.packetization, "raw"); + cricket::VideoCodec vp9 = vcd->codecs()[1]; + EXPECT_EQ(vp9.name, "VP9"); + EXPECT_EQ(vp9.id, 121); + EXPECT_EQ(vp9.packetization, absl::nullopt); + cricket::VideoCodec h264 = vcd->codecs()[2]; + EXPECT_EQ(h264.name, "H264"); + EXPECT_EQ(h264.id, 122); + EXPECT_EQ(h264.packetization, absl::nullopt); +} + +TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithUnknownParameter) { + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + + cricket::AudioCodecs codecs = acd->codecs(); + codecs[0].params["unknown-future-parameter"] = "SomeFutureValue"; + acd->set_codecs(codecs); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_fmtp = kSdpFullString; + InjectAfter("a=rtpmap:111 opus/48000/2\r\n", + "a=fmtp:111 unknown-future-parameter=SomeFutureValue\r\n", + &sdp_with_fmtp); + EXPECT_EQ(sdp_with_fmtp, message); +} + +TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithKnownFmtpParameter) { + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + + cricket::AudioCodecs codecs = acd->codecs(); + codecs[0].params["stereo"] = "1"; + acd->set_codecs(codecs); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_fmtp = kSdpFullString; + InjectAfter("a=rtpmap:111 opus/48000/2\r\n", "a=fmtp:111 stereo=1\r\n", + &sdp_with_fmtp); + EXPECT_EQ(sdp_with_fmtp, message); +} + +TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithPTimeAndMaxPTime) { + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + + cricket::AudioCodecs codecs = acd->codecs(); + codecs[0].params["ptime"] = "20"; + codecs[0].params["maxptime"] = "120"; + acd->set_codecs(codecs); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_fmtp = kSdpFullString; + InjectAfter("a=rtpmap:104 ISAC/32000\r\n", + "a=maxptime:120\r\n" // No comma here. String merging! + "a=ptime:20\r\n", + &sdp_with_fmtp); + EXPECT_EQ(sdp_with_fmtp, message); +} + +TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithTelephoneEvent) { + AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); + + cricket::AudioCodecs codecs = acd->codecs(); + cricket::AudioCodec dtmf(105, "telephone-event", 8000, 0, 1); + dtmf.params[""] = "0-15"; + codecs.push_back(dtmf); + acd->set_codecs(codecs); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_fmtp = kSdpFullString; + InjectAfter("m=audio 2345 RTP/SAVPF 111 103 104", " 105", &sdp_with_fmtp); + InjectAfter( + "a=rtpmap:104 ISAC/32000\r\n", + "a=rtpmap:105 telephone-event/8000\r\n" // No comma here. String merging! + "a=fmtp:105 0-15\r\n", + &sdp_with_fmtp); + EXPECT_EQ(sdp_with_fmtp, message); +} + +TEST_F(WebRtcSdpTest, SerializeVideoFmtp) { + VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); + + cricket::VideoCodecs codecs = vcd->codecs(); + codecs[0].params["x-google-min-bitrate"] = "10"; + vcd->set_codecs(codecs); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_fmtp = kSdpFullString; + InjectAfter("a=rtpmap:120 VP8/90000\r\n", + "a=fmtp:120 x-google-min-bitrate=10\r\n", &sdp_with_fmtp); + EXPECT_EQ(sdp_with_fmtp, message); +} + +TEST_F(WebRtcSdpTest, SerializeVideoPacketizationAttribute) { + VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); + + cricket::VideoCodecs codecs = vcd->codecs(); + codecs[0].packetization = "raw"; + vcd->set_codecs(codecs); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_packetization = kSdpFullString; + InjectAfter("a=rtpmap:120 VP8/90000\r\n", "a=packetization:120 raw\r\n", + &sdp_with_packetization); + EXPECT_EQ(sdp_with_packetization, message); +} + +TEST_F(WebRtcSdpTest, DeserializeAndSerializeSdpWithIceLite) { + // Deserialize the baseline description, making sure it's ICE full. + JsepSessionDescription jdesc_with_icelite(kDummyType); + std::string sdp_with_icelite = kSdpFullString; + EXPECT_TRUE(SdpDeserialize(sdp_with_icelite, &jdesc_with_icelite)); + cricket::SessionDescription* desc = jdesc_with_icelite.description(); + const cricket::TransportInfo* tinfo1 = + desc->GetTransportInfoByName("audio_content_name"); + EXPECT_EQ(cricket::ICEMODE_FULL, tinfo1->description.ice_mode); + const cricket::TransportInfo* tinfo2 = + desc->GetTransportInfoByName("video_content_name"); + EXPECT_EQ(cricket::ICEMODE_FULL, tinfo2->description.ice_mode); + + // Add "a=ice-lite" and deserialize, making sure it's ICE lite. + InjectAfter(kSessionTime, "a=ice-lite\r\n", &sdp_with_icelite); + EXPECT_TRUE(SdpDeserialize(sdp_with_icelite, &jdesc_with_icelite)); + desc = jdesc_with_icelite.description(); + const cricket::TransportInfo* atinfo = + desc->GetTransportInfoByName("audio_content_name"); + EXPECT_EQ(cricket::ICEMODE_LITE, atinfo->description.ice_mode); + const cricket::TransportInfo* vtinfo = + desc->GetTransportInfoByName("video_content_name"); + EXPECT_EQ(cricket::ICEMODE_LITE, vtinfo->description.ice_mode); + + // Now that we know deserialization works, we can use TestSerialize to test + // serialization. + TestSerialize(jdesc_with_icelite); +} + +// Verifies that the candidates in the input SDP are parsed and serialized +// correctly in the output SDP. +TEST_F(WebRtcSdpTest, RoundTripSdpWithSctpDataChannelsWithCandidates) { + std::string sdp_with_data = kSdpString; + sdp_with_data.append(kSdpSctpDataChannelWithCandidatesString); + JsepSessionDescription jdesc_output(kDummyType); + + EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output)); + EXPECT_EQ(sdp_with_data, webrtc::SdpSerialize(jdesc_output)); +} + +TEST_F(WebRtcSdpTest, SerializeDtlsSetupAttribute) { + AddFingerprint(); + TransportInfo audio_transport_info = + *(desc_.GetTransportInfoByName(kAudioContentName)); + EXPECT_EQ(cricket::CONNECTIONROLE_NONE, + audio_transport_info.description.connection_role); + audio_transport_info.description.connection_role = + cricket::CONNECTIONROLE_ACTIVE; + + TransportInfo video_transport_info = + *(desc_.GetTransportInfoByName(kVideoContentName)); + EXPECT_EQ(cricket::CONNECTIONROLE_NONE, + video_transport_info.description.connection_role); + video_transport_info.description.connection_role = + cricket::CONNECTIONROLE_ACTIVE; + + desc_.RemoveTransportInfoByName(kAudioContentName); + desc_.RemoveTransportInfoByName(kVideoContentName); + + desc_.AddTransportInfo(audio_transport_info); + desc_.AddTransportInfo(video_transport_info); + + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + std::string message = webrtc::SdpSerialize(jdesc_); + std::string sdp_with_dtlssetup = kSdpFullString; + + // Fingerprint attribute is necessary to add DTLS setup attribute. + InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_dtlssetup); + InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_dtlssetup); + // Now adding `setup` attribute. + InjectAfter(kFingerprint, "a=setup:active\r\n", &sdp_with_dtlssetup); + EXPECT_EQ(sdp_with_dtlssetup, message); +} + +TEST_F(WebRtcSdpTest, DeserializeDtlsSetupAttributeActpass) { + JsepSessionDescription jdesc_with_dtlssetup(kDummyType); + std::string sdp_with_dtlssetup = kSdpFullString; + InjectAfter(kSessionTime, "a=setup:actpass\r\n", &sdp_with_dtlssetup); + EXPECT_TRUE(SdpDeserialize(sdp_with_dtlssetup, &jdesc_with_dtlssetup)); + cricket::SessionDescription* desc = jdesc_with_dtlssetup.description(); + const cricket::TransportInfo* atinfo = + desc->GetTransportInfoByName("audio_content_name"); + EXPECT_EQ(cricket::CONNECTIONROLE_ACTPASS, + atinfo->description.connection_role); + const cricket::TransportInfo* vtinfo = + desc->GetTransportInfoByName("video_content_name"); + EXPECT_EQ(cricket::CONNECTIONROLE_ACTPASS, + vtinfo->description.connection_role); +} + +TEST_F(WebRtcSdpTest, DeserializeDtlsSetupAttributeActive) { + JsepSessionDescription jdesc_with_dtlssetup(kDummyType); + std::string sdp_with_dtlssetup = kSdpFullString; + InjectAfter(kSessionTime, "a=setup:active\r\n", &sdp_with_dtlssetup); + EXPECT_TRUE(SdpDeserialize(sdp_with_dtlssetup, &jdesc_with_dtlssetup)); + cricket::SessionDescription* desc = jdesc_with_dtlssetup.description(); + const cricket::TransportInfo* atinfo = + desc->GetTransportInfoByName("audio_content_name"); + EXPECT_EQ(cricket::CONNECTIONROLE_ACTIVE, + atinfo->description.connection_role); + const cricket::TransportInfo* vtinfo = + desc->GetTransportInfoByName("video_content_name"); + EXPECT_EQ(cricket::CONNECTIONROLE_ACTIVE, + vtinfo->description.connection_role); +} +TEST_F(WebRtcSdpTest, DeserializeDtlsSetupAttributePassive) { + JsepSessionDescription jdesc_with_dtlssetup(kDummyType); + std::string sdp_with_dtlssetup = kSdpFullString; + InjectAfter(kSessionTime, "a=setup:passive\r\n", &sdp_with_dtlssetup); + EXPECT_TRUE(SdpDeserialize(sdp_with_dtlssetup, &jdesc_with_dtlssetup)); + cricket::SessionDescription* desc = jdesc_with_dtlssetup.description(); + const cricket::TransportInfo* atinfo = + desc->GetTransportInfoByName("audio_content_name"); + EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE, + atinfo->description.connection_role); + const cricket::TransportInfo* vtinfo = + desc->GetTransportInfoByName("video_content_name"); + EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE, + vtinfo->description.connection_role); +} + +// Verifies that the order of the serialized m-lines follows the order of the +// ContentInfo in SessionDescription, and vise versa for deserialization. +TEST_F(WebRtcSdpTest, MediaContentOrderMaintainedRoundTrip) { + JsepSessionDescription jdesc(kDummyType); + const std::string media_content_sdps[3] = {kSdpAudioString, kSdpVideoString, + kSdpSctpDataChannelString}; + const cricket::MediaType media_types[3] = {cricket::MEDIA_TYPE_AUDIO, + cricket::MEDIA_TYPE_VIDEO, + cricket::MEDIA_TYPE_DATA}; + + // Verifies all 6 permutations. + for (size_t i = 0; i < 6; ++i) { + size_t media_content_in_sdp[3]; + // The index of the first media content. + media_content_in_sdp[0] = i / 2; + // The index of the second media content. + media_content_in_sdp[1] = (media_content_in_sdp[0] + i % 2 + 1) % 3; + // The index of the third media content. + media_content_in_sdp[2] = (media_content_in_sdp[0] + (i + 1) % 2 + 1) % 3; + + std::string sdp_string = kSdpSessionString; + for (size_t i = 0; i < 3; ++i) + sdp_string += media_content_sdps[media_content_in_sdp[i]]; + + EXPECT_TRUE(SdpDeserialize(sdp_string, &jdesc)); + cricket::SessionDescription* desc = jdesc.description(); + EXPECT_EQ(3u, desc->contents().size()); + + for (size_t i = 0; i < 3; ++i) { + const cricket::MediaContentDescription* mdesc = + desc->contents()[i].media_description(); + EXPECT_EQ(media_types[media_content_in_sdp[i]], mdesc->type()); + } + + std::string serialized_sdp = webrtc::SdpSerialize(jdesc); + EXPECT_EQ(sdp_string, serialized_sdp); + } +} + +TEST_F(WebRtcSdpTest, DeserializeBundleOnlyAttribute) { + MakeBundleOnlyDescription(); + JsepSessionDescription deserialized_description(kDummyType); + ASSERT_TRUE( + SdpDeserialize(kBundleOnlySdpFullString, &deserialized_description)); + EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); +} + +// The semantics of "a=bundle-only" are only defined when it's used in +// combination with a 0 port on the m= line. We should ignore it if used with a +// nonzero port. +TEST_F(WebRtcSdpTest, IgnoreBundleOnlyWithNonzeroPort) { + // Make the base bundle-only description but unset the bundle-only flag. + MakeBundleOnlyDescription(); + jdesc_.description()->contents()[1].bundle_only = false; + + std::string modified_sdp = kBundleOnlySdpFullString; + Replace("m=video 0", "m=video 9", &modified_sdp); + JsepSessionDescription deserialized_description(kDummyType); + ASSERT_TRUE(SdpDeserialize(modified_sdp, &deserialized_description)); + EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); +} + +TEST_F(WebRtcSdpTest, SerializeBundleOnlyAttribute) { + MakeBundleOnlyDescription(); + TestSerialize(jdesc_); +} + +TEST_F(WebRtcSdpTest, DeserializePlanBSessionDescription) { + MakePlanBDescription(); + + JsepSessionDescription deserialized_description(kDummyType); + EXPECT_TRUE(SdpDeserialize(kPlanBSdpFullString, &deserialized_description)); + + EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); +} + +TEST_F(WebRtcSdpTest, SerializePlanBSessionDescription) { + MakePlanBDescription(); + TestSerialize(jdesc_); +} + +TEST_F(WebRtcSdpTest, DeserializeUnifiedPlanSessionDescription) { + MakeUnifiedPlanDescription(); + + JsepSessionDescription deserialized_description(kDummyType); + EXPECT_TRUE( + SdpDeserialize(kUnifiedPlanSdpFullString, &deserialized_description)); + + EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); +} + +TEST_F(WebRtcSdpTest, SerializeUnifiedPlanSessionDescription) { + MakeUnifiedPlanDescription(); + TestSerialize(jdesc_); +} + +// This tests deserializing a Unified Plan SDP that is compatible with both +// Unified Plan and Plan B style SDP, meaning that it contains both "a=ssrc +// msid" lines and "a=msid " lines. It tests the case for audio/video tracks +// with no stream ids and multiple stream ids. For parsing this, the Unified +// Plan a=msid lines should take priority, because the Plan B style a=ssrc msid +// lines do not support multiple stream ids and no stream ids. +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionSpecialMsid) { + // Create both msid lines for Plan B and Unified Plan support. + MakeUnifiedPlanDescriptionMultipleStreamIds( + cricket::kMsidSignalingMediaSection | + cricket::kMsidSignalingSsrcAttribute); + + JsepSessionDescription deserialized_description(kDummyType); + EXPECT_TRUE(SdpDeserialize(kUnifiedPlanSdpFullStringWithSpecialMsid, + &deserialized_description)); + + EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); + EXPECT_EQ(cricket::kMsidSignalingMediaSection | + cricket::kMsidSignalingSsrcAttribute, + deserialized_description.description()->msid_signaling()); +} + +// Tests the serialization of a Unified Plan SDP that is compatible for both +// Unified Plan and Plan B style SDPs, meaning that it contains both "a=ssrc +// msid" lines and "a=msid " lines. It tests the case for no stream ids and +// multiple stream ids. +TEST_F(WebRtcSdpTest, SerializeSessionDescriptionSpecialMsid) { + // Create both msid lines for Plan B and Unified Plan support. + MakeUnifiedPlanDescriptionMultipleStreamIds( + cricket::kMsidSignalingMediaSection | + cricket::kMsidSignalingSsrcAttribute); + std::string serialized_sdp = webrtc::SdpSerialize(jdesc_); + // We explicitly test that the serialized SDP string is equal to the hard + // coded SDP string. This is necessary, because in the parser "a=msid" lines + // take priority over "a=ssrc msid" lines. This means if we just used + // TestSerialize(), it could serialize an SDP that omits "a=ssrc msid" lines, + // and still pass, because the deserialized version would be the same. + EXPECT_EQ(kUnifiedPlanSdpFullStringWithSpecialMsid, serialized_sdp); +} + +// Tests that a Unified Plan style SDP (does not contain "a=ssrc msid" lines +// that signal stream IDs) is deserialized appropriately. It tests the case for +// no stream ids and multiple stream ids. +TEST_F(WebRtcSdpTest, UnifiedPlanDeserializeSessionDescriptionSpecialMsid) { + // Only create a=msid lines for strictly Unified Plan stream ID support. + MakeUnifiedPlanDescriptionMultipleStreamIds( + cricket::kMsidSignalingMediaSection); + + JsepSessionDescription deserialized_description(kDummyType); + std::string unified_plan_sdp_string = + kUnifiedPlanSdpFullStringWithSpecialMsid; + RemoveSsrcMsidLinesFromSdpString(&unified_plan_sdp_string); + EXPECT_TRUE( + SdpDeserialize(unified_plan_sdp_string, &deserialized_description)); + + EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); +} + +// Tests that a Unified Plan style SDP (does not contain "a=ssrc msid" lines +// that signal stream IDs) is serialized appropriately. It tests the case for no +// stream ids and multiple stream ids. +TEST_F(WebRtcSdpTest, UnifiedPlanSerializeSessionDescriptionSpecialMsid) { + // Only create a=msid lines for strictly Unified Plan stream ID support. + MakeUnifiedPlanDescriptionMultipleStreamIds( + cricket::kMsidSignalingMediaSection); + + TestSerialize(jdesc_); +} + +// This tests that a Unified Plan SDP with no a=ssrc lines is +// serialized/deserialized appropriately. In this case the +// MediaContentDescription will contain a StreamParams object that doesn't have +// any SSRCs. Vice versa, this will be created upon deserializing an SDP with no +// SSRC lines. +TEST_F(WebRtcSdpTest, DeserializeUnifiedPlanSessionDescriptionNoSsrcSignaling) { + MakeUnifiedPlanDescription(); + RemoveSsrcSignalingFromStreamParams(); + std::string unified_plan_sdp_string = kUnifiedPlanSdpFullString; + RemoveSsrcLinesFromSdpString(&unified_plan_sdp_string); + + JsepSessionDescription deserialized_description(kDummyType); + EXPECT_TRUE( + SdpDeserialize(unified_plan_sdp_string, &deserialized_description)); + EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); +} + +TEST_F(WebRtcSdpTest, SerializeUnifiedPlanSessionDescriptionNoSsrcSignaling) { + MakeUnifiedPlanDescription(); + RemoveSsrcSignalingFromStreamParams(); + + TestSerialize(jdesc_); +} + +TEST_F(WebRtcSdpTest, EmptyDescriptionHasNoMsidSignaling) { + JsepSessionDescription jsep_desc(kDummyType); + ASSERT_TRUE(SdpDeserialize(kSdpSessionString, &jsep_desc)); + EXPECT_EQ(0, jsep_desc.description()->msid_signaling()); +} + +TEST_F(WebRtcSdpTest, DataChannelOnlyHasNoMsidSignaling) { + JsepSessionDescription jsep_desc(kDummyType); + std::string sdp = kSdpSessionString; + sdp += kSdpSctpDataChannelString; + ASSERT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + EXPECT_EQ(0, jsep_desc.description()->msid_signaling()); +} + +TEST_F(WebRtcSdpTest, PlanBHasSsrcAttributeMsidSignaling) { + JsepSessionDescription jsep_desc(kDummyType); + ASSERT_TRUE(SdpDeserialize(kPlanBSdpFullString, &jsep_desc)); + EXPECT_EQ(cricket::kMsidSignalingSsrcAttribute, + jsep_desc.description()->msid_signaling()); +} + +TEST_F(WebRtcSdpTest, UnifiedPlanHasMediaSectionMsidSignaling) { + JsepSessionDescription jsep_desc(kDummyType); + ASSERT_TRUE(SdpDeserialize(kUnifiedPlanSdpFullString, &jsep_desc)); + EXPECT_EQ(cricket::kMsidSignalingMediaSection, + jsep_desc.description()->msid_signaling()); +} + +const char kMediaSectionMsidLine[] = "a=msid:local_stream_1 audio_track_id_1"; +const char kSsrcAttributeMsidLine[] = + "a=ssrc:1 msid:local_stream_1 audio_track_id_1"; + +TEST_F(WebRtcSdpTest, SerializeOnlyMediaSectionMsid) { + jdesc_.description()->set_msid_signaling(cricket::kMsidSignalingMediaSection); + std::string sdp = webrtc::SdpSerialize(jdesc_); + + EXPECT_NE(std::string::npos, sdp.find(kMediaSectionMsidLine)); + EXPECT_EQ(std::string::npos, sdp.find(kSsrcAttributeMsidLine)); +} + +TEST_F(WebRtcSdpTest, SerializeOnlySsrcAttributeMsid) { + jdesc_.description()->set_msid_signaling( + cricket::kMsidSignalingSsrcAttribute); + std::string sdp = webrtc::SdpSerialize(jdesc_); + + EXPECT_EQ(std::string::npos, sdp.find(kMediaSectionMsidLine)); + EXPECT_NE(std::string::npos, sdp.find(kSsrcAttributeMsidLine)); +} + +TEST_F(WebRtcSdpTest, SerializeBothMediaSectionAndSsrcAttributeMsid) { + jdesc_.description()->set_msid_signaling( + cricket::kMsidSignalingMediaSection | + cricket::kMsidSignalingSsrcAttribute); + std::string sdp = webrtc::SdpSerialize(jdesc_); + + EXPECT_NE(std::string::npos, sdp.find(kMediaSectionMsidLine)); + EXPECT_NE(std::string::npos, sdp.find(kSsrcAttributeMsidLine)); +} + +// Regression test for integer overflow bug: +// https://bugs.chromium.org/p/chromium/issues/detail?id=648071 +TEST_F(WebRtcSdpTest, DeserializeLargeBandwidthLimit) { + // Bandwidth attribute is the max signed 32-bit int, which will get + // multiplied by 1000 and cause int overflow if not careful. + static const char kSdpWithLargeBandwidth[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 3457 RTP/SAVPF 120\r\n" + "b=AS:2147483647\r\n" + "foo=fail\r\n"; + + ExpectParseFailure(std::string(kSdpWithLargeBandwidth), "foo=fail"); +} + +// Similar to the above, except that negative values are illegal, not just +// error-prone as large values are. +// https://bugs.chromium.org/p/chromium/issues/detail?id=675361 +TEST_F(WebRtcSdpTest, DeserializingNegativeBandwidthLimitFails) { + static const char kSdpWithNegativeBandwidth[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 3457 RTP/SAVPF 120\r\n" + "b=AS:-1000\r\n"; + + ExpectParseFailure(std::string(kSdpWithNegativeBandwidth), "b=AS:-1000"); +} + +// An exception to the above rule: a value of -1 for b=AS should just be +// ignored, resulting in "kAutoBandwidth" in the deserialized object. +// Applications historically may be using "b=AS:-1" to mean "no bandwidth +// limit", but this is now what ommitting the attribute entirely will do, so +// ignoring it will have the intended effect. +TEST_F(WebRtcSdpTest, BandwidthLimitOfNegativeOneIgnored) { + static const char kSdpWithBandwidthOfNegativeOne[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 3457 RTP/SAVPF 120\r\n" + "b=AS:-1\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(kSdpWithBandwidthOfNegativeOne, &jdesc_output)); + const VideoContentDescription* vcd = + GetFirstVideoContentDescription(jdesc_output.description()); + ASSERT_TRUE(vcd); + EXPECT_EQ(cricket::kAutoBandwidth, vcd->bandwidth()); +} + +// Test that "ufrag"/"pwd" in the candidate line itself are ignored, and only +// the "a=ice-ufrag"/"a=ice-pwd" attributes are used. +// Regression test for: +// https://bugs.chromium.org/p/chromium/issues/detail?id=681286 +TEST_F(WebRtcSdpTest, IceCredentialsInCandidateStringIgnored) { + // Important piece is "ufrag foo pwd bar". + static const char kSdpWithIceCredentialsInCandidateString[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2 ufrag foo pwd bar\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE( + SdpDeserialize(kSdpWithIceCredentialsInCandidateString, &jdesc_output)); + const IceCandidateCollection* candidates = jdesc_output.candidates(0); + ASSERT_NE(nullptr, candidates); + ASSERT_EQ(1U, candidates->count()); + cricket::Candidate c = candidates->at(0)->candidate(); + EXPECT_EQ("ufrag_voice", c.username()); + EXPECT_EQ("pwd_voice", c.password()); +} + +// Test that attribute lines "a=ice-ufrag-something"/"a=ice-pwd-something" are +// ignored, and only the "a=ice-ufrag"/"a=ice-pwd" attributes are used. +// Regression test for: +// https://bugs.chromium.org/p/webrtc/issues/detail?id=9712 +TEST_F(WebRtcSdpTest, AttributeWithPartialMatchingNameIsIgnored) { + static const char kSdpWithFooIceCredentials[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag-something:foo\r\na=ice-pwd-something:bar\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " + "generation 2\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(kSdpWithFooIceCredentials, &jdesc_output)); + const IceCandidateCollection* candidates = jdesc_output.candidates(0); + ASSERT_NE(nullptr, candidates); + ASSERT_EQ(1U, candidates->count()); + cricket::Candidate c = candidates->at(0)->candidate(); + EXPECT_EQ("ufrag_voice", c.username()); + EXPECT_EQ("pwd_voice", c.password()); +} + +// Test that SDP with an invalid port number in "a=candidate" lines is +// rejected, without crashing. +// Regression test for: +// https://bugs.chromium.org/p/chromium/issues/detail?id=677029 +TEST_F(WebRtcSdpTest, DeserializeInvalidPortInCandidateAttribute) { + static const char kSdpWithInvalidCandidatePort[] = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtcp:9 IN IP4 0.0.0.0\r\n" + "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 12345678 typ host " + "generation 2 raddr 192.168.1.1 rport 87654321\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(kSdpWithInvalidCandidatePort, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithStreamIdAndTrackId) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id track_id\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 1u); + EXPECT_EQ(stream.stream_ids()[0], "stream_id"); + EXPECT_EQ(stream.id, "track_id"); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithEmptyStreamIdAndTrackId) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:- track_id\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 0u); + EXPECT_EQ(stream.id, "track_id"); +} + +// Test that "a=msid" with a missing track ID is rejected and doesn't crash. +// Regression test for: +// https://bugs.chromium.org/p/chromium/issues/detail?id=686405 +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithMissingTrackId) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id \r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(sdp, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutColon) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(sdp, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAttributes) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(sdp, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithTooManySpaces) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id track_id bogus\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(sdp, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithDifferentTrackIds) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id track_id\r\n" + "a=msid:stream_id2 track_id2\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(sdp, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppData) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 1u); + EXPECT_EQ(stream.stream_ids()[0], "stream_id"); + // Track id is randomly generated. + EXPECT_NE(stream.id, ""); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataTwoStreams) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id\r\n" + "a=msid:stream_id2\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 2u); + EXPECT_EQ(stream.stream_ids()[0], "stream_id"); + EXPECT_EQ(stream.stream_ids()[1], "stream_id2"); + // Track id is randomly generated. + EXPECT_NE(stream.id, ""); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataDuplicate) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id\r\n" + "a=msid:stream_id\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + // This is somewhat silly but accept it. Duplicates get filtered. + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 1u); + EXPECT_EQ(stream.stream_ids()[0], "stream_id"); + // Track id is randomly generated. + EXPECT_NE(stream.id, ""); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataMixed) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id\r\n" + "a=msid:stream_id2 track_id\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + // Mixing the syntax like this is not a good idea but we accept it + // and the result is the second track_id. + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 2u); + EXPECT_EQ(stream.stream_ids()[0], "stream_id"); + EXPECT_EQ(stream.stream_ids()[1], "stream_id2"); + + // Track id is taken from second line. + EXPECT_EQ(stream.id, "track_id"); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataMixed2) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id track_id\r\n" + "a=msid:stream_id2\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + // Mixing the syntax like this is not a good idea but we accept it + // and the result is the second track_id. + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 2u); + EXPECT_EQ(stream.stream_ids()[0], "stream_id"); + EXPECT_EQ(stream.stream_ids()[1], "stream_id2"); + + // Track id is taken from first line. + EXPECT_EQ(stream.id, "track_id"); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataMixedNoStream) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid:stream_id\r\n" + "a=msid:- track_id\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + // This is somewhat undefined behavior but accept it and expect a single + // stream. + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + auto stream = jdesc_output.description() + ->contents()[0] + .media_description() + ->streams()[0]; + ASSERT_EQ(stream.stream_ids().size(), 1u); + EXPECT_EQ(stream.stream_ids()[0], "stream_id"); + EXPECT_EQ(stream.id, "track_id"); +} + +TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithMissingStreamId) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 9 RTP/SAVPF 111\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=msid: track_id\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_FALSE(SdpDeserialize(sdp, &jdesc_output)); +} + +// Tests that if both session-level address and media-level address exist, use +// the media-level address. +TEST_F(WebRtcSdpTest, ParseConnectionData) { + JsepSessionDescription jsep_desc(kDummyType); + + // Sesssion-level address. + std::string sdp = kSdpFullString; + InjectAfter("s=-\r\n", "c=IN IP4 192.168.0.3\r\n", &sdp); + EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + + const auto& content1 = jsep_desc.description()->contents()[0]; + EXPECT_EQ("74.125.127.126:2345", + content1.media_description()->connection_address().ToString()); + const auto& content2 = jsep_desc.description()->contents()[1]; + EXPECT_EQ("74.125.224.39:3457", + content2.media_description()->connection_address().ToString()); +} + +// Tests that the session-level connection address will be used if the media +// level-addresses are not specified. +TEST_F(WebRtcSdpTest, ParseConnectionDataSessionLevelOnly) { + JsepSessionDescription jsep_desc(kDummyType); + + // Sesssion-level address. + std::string sdp = kSdpString; + InjectAfter("s=-\r\n", "c=IN IP4 192.168.0.3\r\n", &sdp); + // Remove the media level addresses. + Replace("c=IN IP4 0.0.0.0\r\n", "", &sdp); + Replace("c=IN IP4 0.0.0.0\r\n", "", &sdp); + EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + + const auto& content1 = jsep_desc.description()->contents()[0]; + EXPECT_EQ("192.168.0.3:9", + content1.media_description()->connection_address().ToString()); + const auto& content2 = jsep_desc.description()->contents()[1]; + EXPECT_EQ("192.168.0.3:9", + content2.media_description()->connection_address().ToString()); +} + +TEST_F(WebRtcSdpTest, ParseConnectionDataIPv6) { + JsepSessionDescription jsep_desc(kDummyType); + + std::string sdp = kSdpString; + EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + Replace("m=audio 9 RTP/SAVPF 111 103 104\r\nc=IN IP4 0.0.0.0\r\n", + "m=audio 9 RTP/SAVPF 111 103 104\r\nc=IN IP6 " + "2001:0db8:85a3:0000:0000:8a2e:0370:7335\r\n", + &sdp); + Replace("m=video 9 RTP/SAVPF 120\r\nc=IN IP4 0.0.0.0\r\n", + "m=video 9 RTP/SAVPF 120\r\nc=IN IP6 " + "2001:0db8:85a3:0000:0000:8a2e:0370:7336\r\n", + &sdp); + EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + const auto& content1 = jsep_desc.description()->contents()[0]; + EXPECT_EQ("[2001:db8:85a3::8a2e:370:7335]:9", + content1.media_description()->connection_address().ToString()); + const auto& content2 = jsep_desc.description()->contents()[1]; + EXPECT_EQ("[2001:db8:85a3::8a2e:370:7336]:9", + content2.media_description()->connection_address().ToString()); +} + +// Test that a c= line that contains a hostname connection address can be +// parsed. +TEST_F(WebRtcSdpTest, ParseConnectionDataWithHostnameConnectionAddress) { + JsepSessionDescription jsep_desc(kDummyType); + std::string sdp = kSdpString; + EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + + sdp = kSdpString; + Replace("c=IN IP4 0.0.0.0\r\n", "c=IN IP4 example.local\r\n", &sdp); + Replace("c=IN IP4 0.0.0.0\r\n", "c=IN IP4 example.local\r\n", &sdp); + ASSERT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + + ASSERT_NE(nullptr, jsep_desc.description()); + const auto& content1 = jsep_desc.description()->contents()[0]; + EXPECT_EQ("example.local:9", + content1.media_description()->connection_address().ToString()); + const auto& content2 = jsep_desc.description()->contents()[1]; + EXPECT_EQ("example.local:9", + content2.media_description()->connection_address().ToString()); +} + +// Test that the invalid or unsupported connection data cannot be parsed. +TEST_F(WebRtcSdpTest, ParseConnectionDataFailure) { + JsepSessionDescription jsep_desc(kDummyType); + std::string sdp = kSdpString; + EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc)); + + // Unsupported multicast IPv4 address. + sdp = kSdpFullString; + Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP4 74.125.224.39/127\r\n", &sdp); + EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc)); + + // Unsupported multicast IPv6 address. + sdp = kSdpFullString; + Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP6 ::1/3\r\n", &sdp); + EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc)); + + // Mismatched address type. + sdp = kSdpFullString; + Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP6 74.125.224.39\r\n", &sdp); + EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc)); + + sdp = kSdpFullString; + Replace("c=IN IP4 74.125.224.39\r\n", + "c=IN IP4 2001:0db8:85a3:0000:0000:8a2e:0370:7334\r\n", &sdp); + EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc)); +} + +TEST_F(WebRtcSdpTest, SerializeAndDeserializeWithConnectionAddress) { + JsepSessionDescription expected_jsep(kDummyType); + MakeDescriptionWithoutCandidates(&expected_jsep); + // Serialization. + std::string message = webrtc::SdpSerialize(expected_jsep); + // Deserialization. + JsepSessionDescription jdesc(kDummyType); + EXPECT_TRUE(SdpDeserialize(message, &jdesc)); + auto audio_desc = jdesc.description() + ->GetContentByName(kAudioContentName) + ->media_description(); + auto video_desc = jdesc.description() + ->GetContentByName(kVideoContentName) + ->media_description(); + EXPECT_EQ(audio_desc_->connection_address().ToString(), + audio_desc->connection_address().ToString()); + EXPECT_EQ(video_desc_->connection_address().ToString(), + video_desc->connection_address().ToString()); +} + +// RFC4566 says "If a session has no meaningful name, the value "s= " SHOULD be +// used (i.e., a single space as the session name)." So we should accept that. +TEST_F(WebRtcSdpTest, DeserializeEmptySessionName) { + JsepSessionDescription jsep_desc(kDummyType); + std::string sdp = kSdpString; + Replace("s=-\r\n", "s= \r\n", &sdp); + EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc)); +} + +// Simulcast malformed input test for invalid format. +TEST_F(WebRtcSdpTest, DeserializeSimulcastNegative_EmptyAttribute) { + ExpectParseFailureWithNewLines( + "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n", "a=simulcast:\r\n", + "a=simulcast:"); +} + +// Tests that duplicate simulcast entries in the SDP triggers a parse failure. +TEST_F(WebRtcSdpTest, DeserializeSimulcastNegative_DuplicateAttribute) { + ExpectParseFailureWithNewLines( + "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n", + "a=simulcast:send 1\r\na=simulcast:recv 2\r\n", "a=simulcast:"); +} + +// Validates that deserialization uses the a=simulcast: attribute +TEST_F(WebRtcSdpTest, TestDeserializeSimulcastAttribute) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send\r\n"; + sdp += "a=rid:2 send\r\n"; + sdp += "a=rid:3 send\r\n"; + sdp += "a=rid:4 recv\r\n"; + sdp += "a=rid:5 recv\r\n"; + sdp += "a=rid:6 recv\r\n"; + sdp += "a=simulcast:send 1,2;3 recv 4;5;6\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + EXPECT_EQ(2ul, media->simulcast_description().send_layers().size()); + EXPECT_EQ(3ul, media->simulcast_description().receive_layers().size()); + EXPECT_FALSE(media->streams().empty()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + CompareRidDescriptionIds(rids, {"1", "2", "3"}); +} + +// Validates that deserialization removes rids that do not appear in SDP +TEST_F(WebRtcSdpTest, TestDeserializeSimulcastAttributeRemovesUnknownRids) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send\r\n"; + sdp += "a=rid:3 send\r\n"; + sdp += "a=rid:4 recv\r\n"; + sdp += "a=simulcast:send 1,2;3 recv 4;5,6\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + const SimulcastDescription& simulcast = media->simulcast_description(); + EXPECT_EQ(2ul, simulcast.send_layers().size()); + EXPECT_EQ(1ul, simulcast.receive_layers().size()); + + std::vector<SimulcastLayer> all_send_layers = + simulcast.send_layers().GetAllLayers(); + EXPECT_EQ(2ul, all_send_layers.size()); + EXPECT_EQ(0, + absl::c_count_if(all_send_layers, [](const SimulcastLayer& layer) { + return layer.rid == "2"; + })); + + std::vector<SimulcastLayer> all_receive_layers = + simulcast.receive_layers().GetAllLayers(); + ASSERT_EQ(1ul, all_receive_layers.size()); + EXPECT_EQ("4", all_receive_layers[0].rid); + + EXPECT_FALSE(media->streams().empty()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + CompareRidDescriptionIds(rids, {"1", "3"}); +} + +// Validates that Simulcast removes rids that appear in both send and receive. +TEST_F(WebRtcSdpTest, + TestDeserializeSimulcastAttributeRemovesDuplicateSendReceive) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send\r\n"; + sdp += "a=rid:2 send\r\n"; + sdp += "a=rid:3 send\r\n"; + sdp += "a=rid:4 recv\r\n"; + sdp += "a=simulcast:send 1;2;3 recv 2;4\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + const SimulcastDescription& simulcast = media->simulcast_description(); + EXPECT_EQ(2ul, simulcast.send_layers().size()); + EXPECT_EQ(1ul, simulcast.receive_layers().size()); + EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); + EXPECT_EQ(1ul, simulcast.receive_layers().GetAllLayers().size()); + + EXPECT_FALSE(media->streams().empty()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + CompareRidDescriptionIds(rids, {"1", "3"}); +} + +// Ignores empty rid line. +TEST_F(WebRtcSdpTest, TestDeserializeIgnoresEmptyRidLines) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send\r\n"; + sdp += "a=rid:2 send\r\n"; + sdp += "a=rid\r\n"; // Should ignore this line. + sdp += "a=rid:\r\n"; // Should ignore this line. + sdp += "a=simulcast:send 1;2\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + const SimulcastDescription& simulcast = media->simulcast_description(); + EXPECT_TRUE(simulcast.receive_layers().empty()); + EXPECT_EQ(2ul, simulcast.send_layers().size()); + EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); + + EXPECT_FALSE(media->streams().empty()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + CompareRidDescriptionIds(rids, {"1", "2"}); +} + +// Ignores malformed rid lines. +TEST_F(WebRtcSdpTest, TestDeserializeIgnoresMalformedRidLines) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send pt=\r\n"; // Should ignore this line. + sdp += "a=rid:2 receive\r\n"; // Should ignore this line. + sdp += "a=rid:3 max-width=720;pt=120\r\n"; // Should ignore this line. + sdp += "a=rid:4\r\n"; // Should ignore this line. + sdp += "a=rid:5 send\r\n"; + sdp += "a=simulcast:send 1,2,3;4,5\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + const SimulcastDescription& simulcast = media->simulcast_description(); + EXPECT_TRUE(simulcast.receive_layers().empty()); + EXPECT_EQ(1ul, simulcast.send_layers().size()); + EXPECT_EQ(1ul, simulcast.send_layers().GetAllLayers().size()); + + EXPECT_FALSE(media->streams().empty()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + CompareRidDescriptionIds(rids, {"5"}); +} + +// Removes RIDs that specify a different format than the m= section. +TEST_F(WebRtcSdpTest, TestDeserializeRemovesRidsWithInvalidCodec) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send pt=121,120\r\n"; // Should remove 121 and keep RID. + sdp += "a=rid:2 send pt=121\r\n"; // Should remove RID altogether. + sdp += "a=simulcast:send 1;2\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + const SimulcastDescription& simulcast = media->simulcast_description(); + EXPECT_TRUE(simulcast.receive_layers().empty()); + EXPECT_EQ(1ul, simulcast.send_layers().size()); + EXPECT_EQ(1ul, simulcast.send_layers().GetAllLayers().size()); + EXPECT_EQ("1", simulcast.send_layers()[0][0].rid); + EXPECT_EQ(1ul, media->streams().size()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + EXPECT_EQ(1ul, rids.size()); + EXPECT_EQ("1", rids[0].rid); + EXPECT_EQ(1ul, rids[0].payload_types.size()); + EXPECT_EQ(120, rids[0].payload_types[0]); +} + +// Ignores duplicate rid lines +TEST_F(WebRtcSdpTest, TestDeserializeIgnoresDuplicateRidLines) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send\r\n"; + sdp += "a=rid:2 send\r\n"; + sdp += "a=rid:2 send\r\n"; + sdp += "a=rid:3 send\r\n"; + sdp += "a=rid:4 recv\r\n"; + sdp += "a=simulcast:send 1,2;3 recv 4\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + const SimulcastDescription& simulcast = media->simulcast_description(); + EXPECT_EQ(2ul, simulcast.send_layers().size()); + EXPECT_EQ(1ul, simulcast.receive_layers().size()); + EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); + EXPECT_EQ(1ul, simulcast.receive_layers().GetAllLayers().size()); + + EXPECT_FALSE(media->streams().empty()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + CompareRidDescriptionIds(rids, {"1", "3"}); +} + +TEST_F(WebRtcSdpTest, TestDeserializeRidSendDirection) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 recv\r\n"; + sdp += "a=rid:2 recv\r\n"; + sdp += "a=simulcast:send 1;2\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_FALSE(media->HasSimulcast()); +} + +TEST_F(WebRtcSdpTest, TestDeserializeRidRecvDirection) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send\r\n"; + sdp += "a=rid:2 send\r\n"; + sdp += "a=simulcast:recv 1;2\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_FALSE(media->HasSimulcast()); +} + +TEST_F(WebRtcSdpTest, TestDeserializeIgnoresWrongRidDirectionLines) { + std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; + sdp += "a=rid:1 send\r\n"; + sdp += "a=rid:2 send\r\n"; + sdp += "a=rid:3 send\r\n"; + sdp += "a=rid:4 recv\r\n"; + sdp += "a=rid:5 recv\r\n"; + sdp += "a=rid:6 recv\r\n"; + sdp += "a=simulcast:send 1;5;3 recv 4;2;6\r\n"; + JsepSessionDescription output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + const cricket::ContentInfos& contents = output.description()->contents(); + const cricket::MediaContentDescription* media = + contents.back().media_description(); + EXPECT_TRUE(media->HasSimulcast()); + const SimulcastDescription& simulcast = media->simulcast_description(); + EXPECT_EQ(2ul, simulcast.send_layers().size()); + EXPECT_EQ(2ul, simulcast.receive_layers().size()); + EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); + EXPECT_EQ(2ul, simulcast.receive_layers().GetAllLayers().size()); + + EXPECT_FALSE(media->streams().empty()); + const std::vector<RidDescription>& rids = media->streams()[0].rids(); + CompareRidDescriptionIds(rids, {"1", "3"}); +} + +// Simulcast serialization integration test. +// This test will serialize and deserialize the description and compare. +// More detailed tests for parsing simulcast can be found in +// unit tests for SdpSerializer. +TEST_F(WebRtcSdpTest, SerializeSimulcast_ComplexSerialization) { + MakeUnifiedPlanDescription(/* use_ssrcs = */ false); + auto description = jdesc_.description(); + auto media = description->GetContentDescriptionByName(kVideoContentName3); + ASSERT_EQ(media->streams().size(), 1ul); + StreamParams& send_stream = media->mutable_streams()[0]; + std::vector<RidDescription> send_rids; + send_rids.push_back(RidDescription("1", RidDirection::kSend)); + send_rids.push_back(RidDescription("2", RidDirection::kSend)); + send_rids.push_back(RidDescription("3", RidDirection::kSend)); + send_rids.push_back(RidDescription("4", RidDirection::kSend)); + send_stream.set_rids(send_rids); + std::vector<RidDescription> receive_rids; + receive_rids.push_back(RidDescription("5", RidDirection::kReceive)); + receive_rids.push_back(RidDescription("6", RidDirection::kReceive)); + receive_rids.push_back(RidDescription("7", RidDirection::kReceive)); + media->set_receive_rids(receive_rids); + + SimulcastDescription& simulcast = media->simulcast_description(); + simulcast.send_layers().AddLayerWithAlternatives( + {SimulcastLayer("2", false), SimulcastLayer("1", true)}); + simulcast.send_layers().AddLayerWithAlternatives( + {SimulcastLayer("4", false), SimulcastLayer("3", false)}); + simulcast.receive_layers().AddLayer({SimulcastLayer("5", false)}); + simulcast.receive_layers().AddLayer({SimulcastLayer("6", false)}); + simulcast.receive_layers().AddLayer({SimulcastLayer("7", false)}); + + TestSerialize(jdesc_); +} + +// Test that the content name is empty if the media section does not have an +// a=mid line. +TEST_F(WebRtcSdpTest, ParseNoMid) { + std::string sdp = kSdpString; + Replace("a=mid:audio_content_name\r\n", "", &sdp); + Replace("a=mid:video_content_name\r\n", "", &sdp); + + JsepSessionDescription output(kDummyType); + SdpParseError error; + ASSERT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); + + EXPECT_THAT(output.description()->contents(), + ElementsAre(Field("name", &cricket::ContentInfo::name, ""), + Field("name", &cricket::ContentInfo::name, ""))); +} + +TEST_F(WebRtcSdpTest, SerializeWithDefaultSctpProtocol) { + AddSctpDataChannel(false); // Don't use sctpmap + JsepSessionDescription jsep_desc(kDummyType); + MakeDescriptionWithoutCandidates(&jsep_desc); + std::string message = webrtc::SdpSerialize(jsep_desc); + EXPECT_NE(std::string::npos, + message.find(cricket::kMediaProtocolUdpDtlsSctp)); +} + +TEST_F(WebRtcSdpTest, DeserializeWithAllSctpProtocols) { + AddSctpDataChannel(false); + std::string protocols[] = {cricket::kMediaProtocolDtlsSctp, + cricket::kMediaProtocolUdpDtlsSctp, + cricket::kMediaProtocolTcpDtlsSctp}; + for (const auto& protocol : protocols) { + sctp_desc_->set_protocol(protocol); + JsepSessionDescription jsep_desc(kDummyType); + MakeDescriptionWithoutCandidates(&jsep_desc); + std::string message = webrtc::SdpSerialize(jsep_desc); + EXPECT_NE(std::string::npos, message.find(protocol)); + JsepSessionDescription jsep_output(kDummyType); + SdpParseError error; + EXPECT_TRUE(webrtc::SdpDeserialize(message, &jsep_output, &error)); + } +} + +// According to https://tools.ietf.org/html/rfc5576#section-6.1, the CNAME +// attribute is mandatory, but we relax that restriction. +TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCname) { + std::string sdp_without_cname = kSdpFullString; + Replace("a=ssrc:1 cname:stream_1_cname\r\n", "", &sdp_without_cname); + JsepSessionDescription new_jdesc(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp_without_cname, &new_jdesc)); + + audio_desc_->mutable_streams()[0].cname = ""; + ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(), + jdesc_.session_version())); + EXPECT_TRUE(CompareSessionDescription(jdesc_, new_jdesc)); +} + +TEST_F(WebRtcSdpTest, DeserializeSdpWithUnsupportedMediaType) { + std::string sdp = kSdpSessionString; + sdp += + "m=bogus 9 RTP/SAVPF 0 8\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=mid:bogusmid\r\n"; + sdp += + "m=audio/something 9 RTP/SAVPF 0 8\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=mid:somethingmid\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); + + ASSERT_EQ(2u, jdesc_output.description()->contents().size()); + ASSERT_NE(nullptr, jdesc_output.description() + ->contents()[0] + .media_description() + ->as_unsupported()); + ASSERT_NE(nullptr, jdesc_output.description() + ->contents()[1] + .media_description() + ->as_unsupported()); + + EXPECT_TRUE(jdesc_output.description()->contents()[0].rejected); + EXPECT_TRUE(jdesc_output.description()->contents()[1].rejected); + + EXPECT_EQ(jdesc_output.description()->contents()[0].name, "bogusmid"); + EXPECT_EQ(jdesc_output.description()->contents()[1].name, "somethingmid"); +} + +TEST_F(WebRtcSdpTest, MediaTypeProtocolMismatch) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n"; + + ExpectParseFailure(std::string(sdp + "m=audio 9 UDP/DTLS/SCTP 120\r\n"), + "m=audio"); + ExpectParseFailure(std::string(sdp + "m=video 9 UDP/DTLS/SCTP 120\r\n"), + "m=video"); + ExpectParseFailure(std::string(sdp + "m=video 9 SOMETHING 120\r\n"), + "m=video"); + ExpectParseFailure(std::string(sdp + "m=application 9 SOMETHING 120\r\n"), + "m=application"); +} + +// Regression test for: +// https://bugs.chromium.org/p/chromium/issues/detail?id=1171965 +TEST_F(WebRtcSdpTest, SctpPortInUnsupportedContent) { + std::string sdp = + "v=0\r\n" + "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=o 1 DTLS/SCTP 5000\r\n" + "a=sctp-port\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, IllegalMidCharacterValue) { + std::string sdp = kSdpString; + // [ is an illegal token value. + Replace("a=mid:", "a=mid:[]", &sdp); + ExpectParseFailure(std::string(sdp), "a=mid:[]"); +} + +TEST_F(WebRtcSdpTest, MaxChannels) { + std::string sdp = + "v=0\r\n" + "o=- 11 22 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 49232 RTP/AVP 108\r\n" + "a=rtpmap:108 ISAC/16000/512\r\n"; + + ExpectParseFailure(sdp, "a=rtpmap:108 ISAC/16000/512"); +} + +TEST_F(WebRtcSdpTest, DuplicateAudioRtpmapWithConflict) { + std::string sdp = + "v=0\r\n" + "o=- 11 22 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 49232 RTP/AVP 108\r\n" + "a=rtpmap:108 ISAC/16000\r\n" + "a=rtpmap:108 G711/16000\r\n"; + + ExpectParseFailure(sdp, "a=rtpmap:108 G711/16000"); +} + +TEST_F(WebRtcSdpTest, DuplicateVideoRtpmapWithConflict) { + std::string sdp = + "v=0\r\n" + "o=- 11 22 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 49232 RTP/AVP 108\r\n" + "a=rtpmap:108 VP8/90000\r\n" + "a=rtpmap:108 VP9/90000\r\n"; + + ExpectParseFailure(sdp, "a=rtpmap:108 VP9/90000"); +} + +TEST_F(WebRtcSdpTest, FmtpBeforeRtpMap) { + std::string sdp = + "v=0\r\n" + "o=- 11 22 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=video 49232 RTP/AVP 108\r\n" + "a=fmtp:108 profile-level=1\r\n" + "a=rtpmap:108 VP9/90000\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); +} + +TEST_F(WebRtcSdpTest, StaticallyAssignedPayloadTypeWithDifferentCasing) { + std::string sdp = + "v=0\r\n" + "o=- 11 22 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "t=0 0\r\n" + "m=audio 49232 RTP/AVP 18\r\n" + // Casing differs from statically assigned type, this should + // still be accepted. + "a=rtpmap:18 g729/8000\r\n"; + + JsepSessionDescription jdesc_output(kDummyType); + EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output)); +} + +// This tests parsing of SDP with unknown ssrc-specific attributes. +TEST_F(WebRtcSdpTest, ParseIgnoreUnknownSsrcSpecificAttribute) { + std::string sdp = kSdpString; + sdp += "a=ssrc:1 mslabel:something\r\n"; + + JsepSessionDescription output(kDummyType); + SdpParseError error; + ASSERT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error)); +} |