638 lines
22 KiB
C++
638 lines
22 KiB
C++
/*
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* Copyright (C) 2015 Ericsson AB. All rights reserved.
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* Copyright (C) 2016-2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of Ericsson nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "PeerConnectionBackend.h"
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#if ENABLE(WEB_RTC)
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#include "EventNames.h"
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#include "JSDOMPromiseDeferred.h"
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#include "JSRTCSessionDescriptionInit.h"
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#include "LibWebRTCCertificateGenerator.h"
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#include "Logging.h"
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#include "Page.h"
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#include "RTCDtlsTransport.h"
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#include "RTCIceCandidate.h"
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#include "RTCPeerConnection.h"
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#include "RTCPeerConnectionIceEvent.h"
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#include "RTCRtpCapabilities.h"
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#include "RTCSessionDescriptionInit.h"
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#include "RTCTrackEvent.h"
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#include "RuntimeEnabledFeatures.h"
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#include <wtf/UUID.h>
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#include <wtf/text/StringBuilder.h>
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#include <wtf/text/StringConcatenateNumbers.h>
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namespace WebCore {
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#if !USE(LIBWEBRTC)
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static std::unique_ptr<PeerConnectionBackend> createNoPeerConnectionBackend(RTCPeerConnection&)
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{
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return nullptr;
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}
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CreatePeerConnectionBackend PeerConnectionBackend::create = createNoPeerConnectionBackend;
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std::optional<RTCRtpCapabilities> PeerConnectionBackend::receiverCapabilities(ScriptExecutionContext&, const String&)
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{
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ASSERT_NOT_REACHED();
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return { };
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}
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std::optional<RTCRtpCapabilities> PeerConnectionBackend::senderCapabilities(ScriptExecutionContext&, const String&)
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{
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ASSERT_NOT_REACHED();
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return { };
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}
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#endif
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PeerConnectionBackend::PeerConnectionBackend(RTCPeerConnection& peerConnection)
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: m_peerConnection(peerConnection)
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#if !RELEASE_LOG_DISABLED
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, m_logger(peerConnection.logger())
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, m_logIdentifier(peerConnection.logIdentifier())
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#endif
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{
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}
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PeerConnectionBackend::~PeerConnectionBackend() = default;
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void PeerConnectionBackend::createOffer(RTCOfferOptions&& options, PeerConnection::SessionDescriptionPromise&& promise)
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{
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ASSERT(!m_offerAnswerPromise);
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ASSERT(!m_peerConnection.isClosed());
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m_offerAnswerPromise = WTF::makeUnique<PeerConnection::SessionDescriptionPromise>(WTFMove(promise));
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doCreateOffer(WTFMove(options));
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}
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void PeerConnectionBackend::createOfferSucceeded(String&& sdp)
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Create offer succeeded:\n", sdp);
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ASSERT(m_offerAnswerPromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_offerAnswerPromise), sdp = filterSDP(WTFMove(sdp))]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->resolve(RTCSessionDescriptionInit { RTCSdpType::Offer, sdp });
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});
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}
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void PeerConnectionBackend::createOfferFailed(Exception&& exception)
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Create offer failed:", exception.message());
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ASSERT(m_offerAnswerPromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_offerAnswerPromise), exception = WTFMove(exception)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->reject(WTFMove(exception));
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});
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}
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void PeerConnectionBackend::createAnswer(RTCAnswerOptions&& options, PeerConnection::SessionDescriptionPromise&& promise)
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{
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ASSERT(!m_offerAnswerPromise);
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ASSERT(!m_peerConnection.isClosed());
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m_offerAnswerPromise = WTF::makeUnique<PeerConnection::SessionDescriptionPromise>(WTFMove(promise));
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doCreateAnswer(WTFMove(options));
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}
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void PeerConnectionBackend::createAnswerSucceeded(String&& sdp)
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Create answer succeeded:\n", sdp);
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ASSERT(m_offerAnswerPromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_offerAnswerPromise), sdp = WTFMove(sdp)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->resolve(RTCSessionDescriptionInit { RTCSdpType::Answer, sdp });
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});
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}
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void PeerConnectionBackend::createAnswerFailed(Exception&& exception)
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Create answer failed:", exception.message());
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ASSERT(m_offerAnswerPromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_offerAnswerPromise), exception = WTFMove(exception)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->reject(WTFMove(exception));
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});
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}
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static inline bool isLocalDescriptionTypeValidForState(RTCSdpType type, RTCSignalingState state)
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{
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switch (state) {
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case RTCSignalingState::Stable:
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return type == RTCSdpType::Offer;
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case RTCSignalingState::HaveLocalOffer:
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return type == RTCSdpType::Offer;
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case RTCSignalingState::HaveRemoteOffer:
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return type == RTCSdpType::Answer || type == RTCSdpType::Pranswer;
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case RTCSignalingState::HaveLocalPranswer:
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return type == RTCSdpType::Answer || type == RTCSdpType::Pranswer;
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default:
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return false;
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};
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ASSERT_NOT_REACHED();
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return false;
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}
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void PeerConnectionBackend::setLocalDescription(const RTCSessionDescription* sessionDescription, DOMPromiseDeferred<void>&& promise)
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{
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ASSERT(!m_peerConnection.isClosed());
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if (sessionDescription && !isLocalDescriptionTypeValidForState(sessionDescription->type(), m_peerConnection.signalingState())) {
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promise.reject(InvalidStateError, makeString("Local description type ", sessionDescription->type(), " is incompatible with current signaling state ", m_peerConnection.signalingState()));
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return;
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}
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m_setDescriptionPromise = WTF::makeUnique<DOMPromiseDeferred<void>>(WTFMove(promise));
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doSetLocalDescription(sessionDescription);
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}
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void PeerConnectionBackend::setLocalDescriptionSucceeded()
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER);
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ASSERT(m_setDescriptionPromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_setDescriptionPromise)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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m_peerConnection.updateTransceiversAfterSuccessfulLocalDescription();
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promise->resolve();
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});
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}
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void PeerConnectionBackend::setLocalDescriptionFailed(Exception&& exception)
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Set local description failed:", exception.message());
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ASSERT(m_setDescriptionPromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_setDescriptionPromise), exception = WTFMove(exception)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->reject(WTFMove(exception));
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});
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}
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static inline bool isRemoteDescriptionTypeValidForState(RTCSdpType type, RTCSignalingState state)
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{
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switch (state) {
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case RTCSignalingState::Stable:
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return type == RTCSdpType::Offer;
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case RTCSignalingState::HaveLocalOffer:
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return type == RTCSdpType::Answer || type == RTCSdpType::Pranswer;
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case RTCSignalingState::HaveRemoteOffer:
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return type == RTCSdpType::Offer;
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case RTCSignalingState::HaveRemotePranswer:
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return type == RTCSdpType::Answer || type == RTCSdpType::Pranswer;
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default:
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return false;
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};
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ASSERT_NOT_REACHED();
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return false;
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}
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void PeerConnectionBackend::setRemoteDescription(const RTCSessionDescription& sessionDescription, DOMPromiseDeferred<void>&& promise)
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{
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ASSERT(!m_peerConnection.isClosed());
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if (!isRemoteDescriptionTypeValidForState(sessionDescription.type(), m_peerConnection.signalingState())) {
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promise.reject(InvalidStateError, makeString("Remote description type ", sessionDescription.type(), " is incompatible with current signaling state ", m_peerConnection.signalingState()));
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return;
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}
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m_setDescriptionPromise = WTF::makeUnique<DOMPromiseDeferred<void>>(WTFMove(promise));
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doSetRemoteDescription(sessionDescription);
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}
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void PeerConnectionBackend::setRemoteDescriptionSucceeded()
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Set remote description succeeded");
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ASSERT(m_setDescriptionPromise);
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auto promise = WTFMove(m_setDescriptionPromise);
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auto events = WTFMove(m_pendingTrackEvents);
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for (auto& event : events) {
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auto& track = event.track.get();
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m_peerConnection.dispatchEventWhenFeasible(RTCTrackEvent::create(eventNames().trackEvent, Event::CanBubble::No, Event::IsCancelable::No, WTFMove(event.receiver), WTFMove(event.track), WTFMove(event.streams), WTFMove(event.transceiver)));
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ALWAYS_LOG(LOGIDENTIFIER, "Dispatched if feasible track of type ", track.source().type());
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if (m_peerConnection.isClosed())
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return;
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// FIXME: As per spec, we should set muted to 'false' when starting to receive the content from network.
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track.source().setMuted(false);
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}
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m_peerConnection.doTask([this, promise = WTFMove(promise)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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m_peerConnection.updateTransceiversAfterSuccessfulRemoteDescription();
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promise->resolve();
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});
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}
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void PeerConnectionBackend::setRemoteDescriptionFailed(Exception&& exception)
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Set remote description failed:", exception.message());
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ASSERT(m_pendingTrackEvents.isEmpty());
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m_pendingTrackEvents.clear();
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ASSERT(m_setDescriptionPromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_setDescriptionPromise), exception = WTFMove(exception)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->reject(WTFMove(exception));
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});
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}
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void PeerConnectionBackend::addPendingTrackEvent(PendingTrackEvent&& event)
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{
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ASSERT(!m_peerConnection.isStopped());
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m_pendingTrackEvents.append(WTFMove(event));
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}
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static String extractIPAddress(StringView sdp)
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{
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unsigned counter = 0;
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for (auto item : StringView { sdp }.split(' ')) {
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if (++counter == 5)
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return item.toString();
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}
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return { };
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}
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static inline bool shouldIgnoreIceCandidate(const RTCIceCandidate& iceCandidate)
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{
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auto address = extractIPAddress(iceCandidate.candidate());
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if (!address.endsWithIgnoringASCIICase(".local"_s))
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return false;
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if (!WTF::isVersion4UUID(StringView { address }.substring(0, address.length() - 6))) {
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RELEASE_LOG_ERROR(WebRTC, "mDNS candidate is not a Version 4 UUID");
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return true;
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}
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return false;
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}
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void PeerConnectionBackend::addIceCandidate(RTCIceCandidate* iceCandidate, DOMPromiseDeferred<void>&& promise)
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{
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ASSERT(!m_peerConnection.isClosed());
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if (!iceCandidate) {
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endOfIceCandidates(WTFMove(promise));
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return;
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}
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// FIXME: As per https://w3c.github.io/webrtc-pc/#dom-rtcpeerconnection-addicecandidate(), this check should be done before enqueuing the task.
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if (iceCandidate->sdpMid().isNull() && !iceCandidate->sdpMLineIndex()) {
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promise.reject(Exception { TypeError, "Trying to add a candidate that is missing both sdpMid and sdpMLineIndex"_s });
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return;
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}
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if (shouldIgnoreIceCandidate(*iceCandidate)) {
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promise.resolve();
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return;
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}
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m_addIceCandidatePromise = WTF::makeUnique<DOMPromiseDeferred<void>>(WTFMove(promise));
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doAddIceCandidate(*iceCandidate);
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}
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void PeerConnectionBackend::addIceCandidateSucceeded()
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Adding ice candidate succeeded");
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ASSERT(m_addIceCandidatePromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_addIceCandidatePromise)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->resolve();
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});
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}
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void PeerConnectionBackend::addIceCandidateFailed(Exception&& exception)
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{
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ASSERT(isMainThread());
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ALWAYS_LOG(LOGIDENTIFIER, "Adding ice candidate failed:", exception.message());
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ASSERT(m_addIceCandidatePromise);
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m_peerConnection.doTask([this, promise = WTFMove(m_addIceCandidatePromise), exception = WTFMove(exception)]() mutable {
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if (m_peerConnection.isClosed())
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return;
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promise->reject(WTFMove(exception));
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});
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}
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void PeerConnectionBackend::fireICECandidateEvent(RefPtr<RTCIceCandidate>&& candidate, String&& serverURL)
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{
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ASSERT(isMainThread());
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m_peerConnection.dispatchEventWhenFeasible(RTCPeerConnectionIceEvent::create(Event::CanBubble::No, Event::IsCancelable::No, WTFMove(candidate), WTFMove(serverURL)));
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}
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void PeerConnectionBackend::enableICECandidateFiltering()
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{
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m_shouldFilterICECandidates = true;
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}
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void PeerConnectionBackend::disableICECandidateFiltering()
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{
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m_shouldFilterICECandidates = false;
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for (auto& pendingICECandidate : m_pendingICECandidates)
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fireICECandidateEvent(RTCIceCandidate::create(WTFMove(pendingICECandidate.sdp), WTFMove(pendingICECandidate.mid), pendingICECandidate.sdpMLineIndex), WTFMove(pendingICECandidate.serverURL));
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m_pendingICECandidates.clear();
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}
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static String filterICECandidate(String&& sdp)
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{
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ASSERT(!sdp.contains(" host "));
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if (!sdp.contains(" raddr "))
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return WTFMove(sdp);
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bool skipNextItem = false;
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bool isFirst = true;
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StringBuilder filteredSDP;
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sdp.split(' ', [&](StringView item) {
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if (skipNextItem) {
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skipNextItem = false;
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return;
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}
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if (item == "raddr") {
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filteredSDP.append(" raddr 0.0.0.0");
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skipNextItem = true;
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return;
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}
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if (item == "rport") {
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filteredSDP.append(" rport 0");
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skipNextItem = true;
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return;
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}
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if (isFirst)
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isFirst = false;
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else
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filteredSDP.append(' ');
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filteredSDP.append(item);
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});
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return filteredSDP.toString();
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}
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String PeerConnectionBackend::filterSDP(String&& sdp) const
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{
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if (!m_shouldFilterICECandidates)
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return WTFMove(sdp);
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StringBuilder filteredSDP;
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sdp.split('\n', [this, &filteredSDP](StringView line) {
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if (line.startsWith("c=IN IP4")) {
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filteredSDP.append("c=IN IP4 0.0.0.0\r\n");
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return;
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}
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if (line.startsWith("c=IN IP6")) {
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filteredSDP.append("c=IN IP6 ::\r\n");
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return;
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}
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if (!line.startsWith("a=candidate")) {
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filteredSDP.append(line);
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filteredSDP.append('\n');
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return;
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}
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if (line.find(" host ", 11) == notFound) {
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filteredSDP.append(filterICECandidate(line.toString()));
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filteredSDP.append('\n');
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return;
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}
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auto ipAddress = extractIPAddress(line);
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auto mdnsName = m_ipAddressToMDNSNameMap.get(ipAddress);
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if (mdnsName.isEmpty())
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return;
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auto sdp = line.toString();
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sdp.replace(ipAddress, mdnsName);
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filteredSDP.append(sdp);
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filteredSDP.append('\n');
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});
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return filteredSDP.toString();
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}
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void PeerConnectionBackend::newICECandidate(String&& sdp, String&& mid, unsigned short sdpMLineIndex, String&& serverURL)
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{
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m_peerConnection.doTask([logSiteIdentifier = LOGIDENTIFIER, this, sdp = WTFMove(sdp), mid = WTFMove(mid), sdpMLineIndex, serverURL = WTFMove(serverURL)]() mutable {
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UNUSED_PARAM(logSiteIdentifier);
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ALWAYS_LOG(logSiteIdentifier, "Gathered ice candidate:", sdp);
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m_finishedGatheringCandidates = false;
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if (!m_shouldFilterICECandidates) {
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fireICECandidateEvent(RTCIceCandidate::create(WTFMove(sdp), WTFMove(mid), sdpMLineIndex), WTFMove(serverURL));
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return;
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}
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if (sdp.find(" host ", 0) != notFound) {
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// FIXME: We might need to clear all pending candidates when setting again local description.
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m_pendingICECandidates.append(PendingICECandidate { String { sdp }, WTFMove(mid), sdpMLineIndex, WTFMove(serverURL) });
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if (RuntimeEnabledFeatures::sharedFeatures().webRTCMDNSICECandidatesEnabled()) {
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auto ipAddress = extractIPAddress(sdp);
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// We restrict to IPv4 candidates for now.
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if (ipAddress.contains('.'))
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registerMDNSName(ipAddress);
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}
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return;
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}
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fireICECandidateEvent(RTCIceCandidate::create(filterICECandidate(WTFMove(sdp)), WTFMove(mid), sdpMLineIndex), WTFMove(serverURL));
|
|
});
|
|
}
|
|
|
|
void PeerConnectionBackend::doneGatheringCandidates()
|
|
{
|
|
ASSERT(isMainThread());
|
|
ALWAYS_LOG(LOGIDENTIFIER, "Finished ice candidate gathering");
|
|
m_finishedGatheringCandidates = true;
|
|
|
|
if (m_waitingForMDNSRegistration)
|
|
return;
|
|
|
|
m_peerConnection.dispatchEventWhenFeasible(RTCPeerConnectionIceEvent::create(Event::CanBubble::No, Event::IsCancelable::No, nullptr, { }));
|
|
m_peerConnection.updateIceGatheringState(RTCIceGatheringState::Complete);
|
|
m_pendingICECandidates.clear();
|
|
}
|
|
|
|
void PeerConnectionBackend::endOfIceCandidates(DOMPromiseDeferred<void>&& promise)
|
|
{
|
|
promise.resolve();
|
|
}
|
|
|
|
void PeerConnectionBackend::registerMDNSName(const String& ipAddress)
|
|
{
|
|
++m_waitingForMDNSRegistration;
|
|
auto& document = downcast<Document>(*m_peerConnection.scriptExecutionContext());
|
|
auto& provider = document.page()->libWebRTCProvider();
|
|
provider.registerMDNSName(document.identifier(), ipAddress, [peerConnection = makeRef(m_peerConnection), this, ipAddress] (LibWebRTCProvider::MDNSNameOrError&& result) {
|
|
if (peerConnection->isStopped())
|
|
return;
|
|
|
|
--m_waitingForMDNSRegistration;
|
|
if (!result.has_value()) {
|
|
m_peerConnection.scriptExecutionContext()->addConsoleMessage(MessageSource::JS, MessageLevel::Warning, makeString("MDNS registration of a host candidate failed with error ", (unsigned)result.error()));
|
|
return;
|
|
}
|
|
|
|
this->finishedRegisteringMDNSName(ipAddress, result.value());
|
|
});
|
|
}
|
|
|
|
void PeerConnectionBackend::finishedRegisteringMDNSName(const String& ipAddress, const String& name)
|
|
{
|
|
m_ipAddressToMDNSNameMap.add(ipAddress, name);
|
|
Vector<PendingICECandidate*> candidates;
|
|
for (auto& candidate : m_pendingICECandidates) {
|
|
if (candidate.sdp.find(ipAddress) != notFound) {
|
|
auto sdp = candidate.sdp;
|
|
sdp.replace(ipAddress, name);
|
|
fireICECandidateEvent(RTCIceCandidate::create(WTFMove(sdp), WTFMove(candidate.mid), candidate.sdpMLineIndex), WTFMove(candidate.serverURL));
|
|
candidates.append(&candidate);
|
|
}
|
|
}
|
|
m_pendingICECandidates.removeAllMatching([&] (const auto& candidate) {
|
|
return candidates.contains(&candidate);
|
|
});
|
|
|
|
if (!m_waitingForMDNSRegistration && m_finishedGatheringCandidates)
|
|
doneGatheringCandidates();
|
|
}
|
|
|
|
void PeerConnectionBackend::updateSignalingState(RTCSignalingState newSignalingState)
|
|
{
|
|
ASSERT(isMainThread());
|
|
|
|
if (newSignalingState != m_peerConnection.signalingState()) {
|
|
m_peerConnection.setSignalingState(newSignalingState);
|
|
m_peerConnection.dispatchEventWhenFeasible(Event::create(eventNames().signalingstatechangeEvent, Event::CanBubble::No, Event::IsCancelable::No));
|
|
}
|
|
}
|
|
|
|
void PeerConnectionBackend::stop()
|
|
{
|
|
m_offerAnswerPromise = nullptr;
|
|
m_setDescriptionPromise = nullptr;
|
|
m_addIceCandidatePromise = nullptr;
|
|
|
|
m_pendingTrackEvents.clear();
|
|
|
|
doStop();
|
|
}
|
|
|
|
void PeerConnectionBackend::markAsNeedingNegotiation()
|
|
{
|
|
if (m_negotiationNeeded)
|
|
return;
|
|
|
|
m_negotiationNeeded = true;
|
|
|
|
if (m_peerConnection.signalingState() == RTCSignalingState::Stable)
|
|
m_peerConnection.scheduleNegotiationNeededEvent();
|
|
}
|
|
|
|
ExceptionOr<Ref<RTCRtpSender>> PeerConnectionBackend::addTrack(MediaStreamTrack&, Vector<String>&&)
|
|
{
|
|
return Exception { NotSupportedError, "Not implemented"_s };
|
|
}
|
|
|
|
ExceptionOr<Ref<RTCRtpTransceiver>> PeerConnectionBackend::addTransceiver(const String&, const RTCRtpTransceiverInit&)
|
|
{
|
|
return Exception { NotSupportedError, "Not implemented"_s };
|
|
}
|
|
|
|
ExceptionOr<Ref<RTCRtpTransceiver>> PeerConnectionBackend::addTransceiver(Ref<MediaStreamTrack>&&, const RTCRtpTransceiverInit&)
|
|
{
|
|
return Exception { NotSupportedError, "Not implemented"_s };
|
|
}
|
|
|
|
void PeerConnectionBackend::generateCertificate(Document& document, const CertificateInformation& info, DOMPromiseDeferred<IDLInterface<RTCCertificate>>&& promise)
|
|
{
|
|
#if USE(LIBWEBRTC)
|
|
auto* page = document.page();
|
|
if (!page) {
|
|
promise.reject(InvalidStateError);
|
|
return;
|
|
}
|
|
LibWebRTCCertificateGenerator::generateCertificate(document.securityOrigin(), page->libWebRTCProvider(), info, WTFMove(promise));
|
|
#else
|
|
UNUSED_PARAM(document);
|
|
UNUSED_PARAM(expires);
|
|
UNUSED_PARAM(type);
|
|
promise.reject(NotSupportedError);
|
|
#endif
|
|
}
|
|
|
|
ScriptExecutionContext* PeerConnectionBackend::context() const
|
|
{
|
|
return m_peerConnection.scriptExecutionContext();
|
|
}
|
|
|
|
#if !RELEASE_LOG_DISABLED
|
|
WTFLogChannel& PeerConnectionBackend::logChannel() const
|
|
{
|
|
return LogWebRTC;
|
|
}
|
|
#endif
|
|
|
|
} // namespace WebCore
|
|
|
|
#endif // ENABLE(WEB_RTC)
|