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/*
* Copyright (C) 2014 Igalia S.L.
* Copyright (C) 2016-2022 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "UserMediaPermissionCheckProxy.h"
#include "UserMediaPermissionRequestProxy.h"
#include <WebCore/MediaProducer.h>
#include <WebCore/PermissionDescriptor.h>
#include <WebCore/PermissionState.h>
#include <WebCore/RealtimeMediaSourceCenter.h>
#include <WebCore/RealtimeMediaSourceFactory.h>
#include <WebCore/SecurityOrigin.h>
#include <wtf/CompletionHandler.h>
#include <wtf/Deque.h>
#include <wtf/HashMap.h>
#include <wtf/LoggerHelper.h>
#include <wtf/RunLoop.h>
#include <wtf/Seconds.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class CaptureDevice;
class SecurityOrigin;
enum class PermissionName : uint8_t;
struct CaptureDeviceWithCapabilities;
struct ClientOrigin;
struct MediaConstraints;
struct MediaStreamRequest;
};
namespace WebKit {
class WebPageProxy;
enum MediaDevicePermissionRequestIdentifierType { };
using MediaDevicePermissionRequestIdentifier = ObjectIdentifier<MediaDevicePermissionRequestIdentifierType>;
class UserMediaPermissionRequestManagerProxy
#if ENABLE(MEDIA_STREAM)
: public WebCore::AudioCaptureFactory::ExtensiveObserver
#else
: public CanMakeWeakPtr<UserMediaPermissionRequestManagerProxy>
#endif
#if !RELEASE_LOG_DISABLED
, private LoggerHelper
#endif
{
WTF_MAKE_FAST_ALLOCATED;
public:
explicit UserMediaPermissionRequestManagerProxy(WebPageProxy&);
~UserMediaPermissionRequestManagerProxy();
WebPageProxy& page() const { return m_page; }
#if ENABLE(MEDIA_STREAM)
static void forEach(const WTF::Function<void(UserMediaPermissionRequestManagerProxy&)>&);
#endif
static bool permittedToCaptureAudio();
static bool permittedToCaptureVideo();
void invalidatePendingRequests();
void requestUserMediaPermissionForFrame(WebCore::UserMediaRequestIdentifier, WebCore::FrameIdentifier, Ref<WebCore::SecurityOrigin>&& userMediaDocumentOrigin, Ref<WebCore::SecurityOrigin>&& topLevelDocumentOrigin, WebCore::MediaStreamRequest&&);
void resetAccess(std::optional<WebCore::FrameIdentifier> mainFrameID = { });
void didCommitLoadForFrame(WebCore::FrameIdentifier);
void viewIsBecomingVisible();
void grantRequest(UserMediaPermissionRequestProxy&);
void denyRequest(UserMediaPermissionRequestProxy&, UserMediaPermissionRequestProxy::UserMediaAccessDenialReason, const String& invalidConstraint = { });
void enumerateMediaDevicesForFrame(WebCore::FrameIdentifier, Ref<WebCore::SecurityOrigin>&& userMediaDocumentOrigin, Ref<WebCore::SecurityOrigin>&& topLevelDocumentOrigin, CompletionHandler<void(const Vector<WebCore::CaptureDeviceWithCapabilities>&, WebCore::MediaDeviceHashSalts&&)>&&);
void stopCapture();
void scheduleNextRejection();
void rejectionTimerFired();
void clearCachedState();
void captureDevicesChanged();
void captureStateChanged(WebCore::MediaProducerMediaStateFlags oldState, WebCore::MediaProducerMediaStateFlags newState);
void syncWithWebCorePrefs() const;
enum class RequestAction {
Deny,
Grant,
Prompt
};
bool canAudioCaptureSucceed() const;
bool canVideoCaptureSucceed() const;
void setMockCaptureDevicesEnabledOverride(std::optional<bool>);
bool hasPendingCapture() const { return m_hasPendingCapture; }
void checkUserMediaPermissionForSpeechRecognition(WebCore::FrameIdentifier, const WebCore::SecurityOrigin&, const WebCore::SecurityOrigin&, const WebCore::CaptureDevice&, CompletionHandler<void(bool)>&&);
struct DeniedRequest {
WebCore::FrameIdentifier mainFrameID;
Ref<WebCore::SecurityOrigin> userMediaDocumentOrigin;
Ref<WebCore::SecurityOrigin> topLevelDocumentOrigin;
bool isAudioDenied;
bool isVideoDenied;
bool isScreenCaptureDenied;
};
std::optional<WebCore::PermissionState> filterPermissionQuery(const WebCore::ClientOrigin&, const WebCore::PermissionDescriptor&, WebCore::PermissionState);
bool shouldChangeDeniedToPromptForCamera(const WebCore::ClientOrigin&) const;
bool shouldChangeDeniedToPromptForMicrophone(const WebCore::ClientOrigin&) const;
bool shouldChangePromptToGrantForCamera(const WebCore::ClientOrigin&) const;
bool shouldChangePromptToGrantForMicrophone(const WebCore::ClientOrigin&) const;
void clearUserMediaPermissionRequestHistory(WebCore::PermissionName);
private:
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final;
const void* logIdentifier() const final { return m_logIdentifier; }
const char* logClassName() const override { return "UserMediaPermissionRequestManagerProxy"; }
WTFLogChannel& logChannel() const final;
#endif
Ref<UserMediaPermissionRequestProxy> createPermissionRequest(WebCore::UserMediaRequestIdentifier, WebCore::FrameIdentifier mainFrameID, WebCore::FrameIdentifier, Ref<WebCore::SecurityOrigin>&& userMediaDocumentOrigin, Ref<WebCore::SecurityOrigin>&& topLevelDocumentOrigin, Vector<WebCore::CaptureDevice>&& audioDevices, Vector<WebCore::CaptureDevice>&& videoDevices, WebCore::MediaStreamRequest&&);
#if ENABLE(MEDIA_STREAM)
void finishGrantingRequest(UserMediaPermissionRequestProxy&);
const UserMediaPermissionRequestProxy* searchForGrantedRequest(WebCore::FrameIdentifier, const WebCore::SecurityOrigin& userMediaDocumentOrigin, const WebCore::SecurityOrigin& topLevelDocumentOrigin, bool needsAudio, bool needsVideo) const;
bool wasRequestDenied(const UserMediaPermissionRequestProxy&, bool needsAudio, bool needsVideo, bool needsScreenCapture);
using PermissionInfo = UserMediaPermissionCheckProxy::PermissionInfo;
void getUserMediaPermissionInfo(WebCore::FrameIdentifier, Ref<WebCore::SecurityOrigin>&& userMediaDocumentOrigin, Ref<WebCore::SecurityOrigin>&& topLevelDocumentOrigin, CompletionHandler<void(PermissionInfo)>&&);
void captureDevicesChanged(PermissionInfo);
RequestAction getRequestAction(const UserMediaPermissionRequestProxy&);
bool wasGrantedVideoOrAudioAccess(WebCore::FrameIdentifier);
void computeFilteredDeviceList(bool revealIdsAndLabels, CompletionHandler<void(Vector<WebCore::CaptureDeviceWithCapabilities>&&)>&&);
void platformGetMediaStreamDevices(bool revealIdsAndLabels, CompletionHandler<void(Vector<WebCore::CaptureDeviceWithCapabilities>&&)>&&);
void processUserMediaPermissionRequest();
void processUserMediaPermissionInvalidRequest(const String& invalidConstraint);
void processUserMediaPermissionValidRequest(Vector<WebCore::CaptureDevice>&& audioDevices, Vector<WebCore::CaptureDevice>&& videoDevices, WebCore::MediaDeviceHashSalts&&);
void startProcessingUserMediaPermissionRequest(Ref<UserMediaPermissionRequestProxy>&&);
static void requestSystemValidation(const WebPageProxy&, UserMediaPermissionRequestProxy&, CompletionHandler<void(bool)>&&);
void platformValidateUserMediaRequestConstraints(WebCore::RealtimeMediaSourceCenter::ValidConstraintsHandler&& validHandler, WebCore::RealtimeMediaSourceCenter::InvalidConstraintsHandler&& invalidHandler, WebCore::MediaDeviceHashSalts&&);
#endif
bool mockCaptureDevicesEnabled() const;
void watchdogTimerFired();
void processNextUserMediaRequestIfNeeded();
void decidePolicyForUserMediaPermissionRequest();
void updateStoredRequests(UserMediaPermissionRequestProxy&);
String ephemeralDeviceHashSaltForFrame(WebCore::FrameIdentifier);
RefPtr<UserMediaPermissionRequestProxy> m_currentUserMediaRequest;
Deque<Ref<UserMediaPermissionRequestProxy>> m_pendingUserMediaRequests;
HashSet<MediaDevicePermissionRequestIdentifier> m_pendingDeviceRequests;
WebPageProxy& m_page;
RunLoop::Timer m_rejectionTimer;
Deque<Ref<UserMediaPermissionRequestProxy>> m_pendingRejections;
Vector<Ref<UserMediaPermissionRequestProxy>> m_pregrantedRequests;
Vector<Ref<UserMediaPermissionRequestProxy>> m_grantedRequests;
HashMap<WebCore::FrameIdentifier, String> m_frameEphemeralHashSalts;
Vector<DeniedRequest> m_deniedRequests;
WebCore::MediaProducerMediaStateFlags m_captureState;
RunLoop::Timer m_watchdogTimer;
Seconds m_currentWatchdogInterval;
#if !RELEASE_LOG_DISABLED
Ref<const Logger> m_logger;
const void* m_logIdentifier;
#endif
bool m_hasFilteredDeviceList { false };
#if PLATFORM(COCOA)
bool m_hasCreatedSandboxExtensionForTCCD { false };
#endif
uint64_t m_hasPendingCapture { 0 };
std::optional<bool> m_mockDevicesEnabledOverride;
HashSet<WebCore::FrameIdentifier> m_grantedFrames;
};
String convertEnumerationToString(UserMediaPermissionRequestManagerProxy::RequestAction);
} // namespace WebKit
#if ENABLE(MEDIA_STREAM)
namespace WTF {
template<typename Type>
struct LogArgument;
template <>
struct LogArgument<WebKit::UserMediaPermissionRequestManagerProxy::RequestAction> {
static String toString(const WebKit::UserMediaPermissionRequestManagerProxy::RequestAction type)
{
return convertEnumerationToString(type);
}
};
}; // namespace WTF
#endif
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