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content / browser / media / media_devices_permission_checker.cc [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/media/media_devices_permission_checker.h"
#include <utility>
#include <vector>
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "build/build_config.h"
#include "content/browser/permissions/permission_util.h"
#include "content/browser/renderer_host/render_frame_host_delegate.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/permission_controller.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_switches.h"
#include "third_party/blink/public/common/mediastream/media_devices.h"
#include "third_party/blink/public/common/permissions/permission_utils.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace content {
namespace {
MediaDevicesManager::BoolDeviceTypes DoCheckPermissionsOnUIThread(
MediaDevicesManager::BoolDeviceTypes requested_device_types,
int render_process_id,
int render_frame_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
RenderFrameHostImpl* frame_host =
RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
// If there is no |frame_host|, return false for all permissions.
if (!frame_host)
return MediaDevicesManager::BoolDeviceTypes();
RenderFrameHostDelegate* delegate = frame_host->delegate();
url::Origin origin = frame_host->GetLastCommittedOrigin();
bool microphone_permission = delegate->CheckMediaAccessPermission(
frame_host, origin, blink::mojom::MediaStreamType::DEVICE_AUDIO_CAPTURE);
bool speaker_selection_permission =
frame_host->GetBrowserContext()
->GetPermissionController()
->GetPermissionStatusForCurrentDocument(
blink::PermissionType::SPEAKER_SELECTION, frame_host) ==
blink::mojom::PermissionStatus::GRANTED;
bool mic_permissions_policy = frame_host->IsFeatureEnabled(
blink::mojom::PermissionsPolicyFeature::kMicrophone);
bool camera_permissions_policy = frame_host->IsFeatureEnabled(
blink::mojom::PermissionsPolicyFeature::kCamera);
bool speaker_selection_permissions_policy = frame_host->IsFeatureEnabled(
blink::mojom::PermissionsPolicyFeature::kSpeakerSelection);
MediaDevicesManager::BoolDeviceTypes result;
// Speakers. Also allow speakers if the microphone permission is given, even
// if speaker permission is not explicitly given.
result[static_cast<size_t>(MediaDeviceType::kMediaAudioOutput)] =
requested_device_types[static_cast<size_t>(
MediaDeviceType::kMediaAudioOutput)] &&
((microphone_permission && mic_permissions_policy) ||
(speaker_selection_permission && speaker_selection_permissions_policy));
// Mic.
result[static_cast<size_t>(MediaDeviceType::kMediaAudioInput)] =
requested_device_types[static_cast<size_t>(
MediaDeviceType::kMediaAudioInput)] &&
microphone_permission && mic_permissions_policy;
// Camera.
result[static_cast<size_t>(MediaDeviceType::kMediaVideoInput)] =
requested_device_types[static_cast<size_t>(
MediaDeviceType::kMediaVideoInput)] &&
delegate->CheckMediaAccessPermission(
frame_host, origin,
blink::mojom::MediaStreamType::DEVICE_VIDEO_CAPTURE) &&
camera_permissions_policy;
return result;
}
MediaDevicesManager::PermissionDeniedState IsSpeakerSelectionPermissionDenied(
int render_process_id,
int render_frame_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
RenderFrameHostImpl* frame_host =
RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
// If there is no |frame_host|, return PermissionDeniedState::kDenied.
if (!frame_host) {
return MediaDevicesManager::PermissionDeniedState::kDenied;
}
blink::mojom::PermissionStatus speaker_selection_permission_status =
frame_host->GetBrowserContext()
->GetPermissionController()
->GetPermissionStatusForCurrentDocument(
blink::PermissionType::SPEAKER_SELECTION, frame_host);
bool speaker_selection_permissions_policy = frame_host->IsFeatureEnabled(
blink::mojom::PermissionsPolicyFeature::kSpeakerSelection);
// Check if permission is DENIED or permissions policy is not enabled.
if (!speaker_selection_permissions_policy ||
speaker_selection_permission_status ==
blink::mojom::PermissionStatus::DENIED) {
return MediaDevicesManager::PermissionDeniedState::kDenied;
}
return MediaDevicesManager::PermissionDeniedState::kNotDenied;
}
bool CheckSinglePermissionOnUIThread(MediaDeviceType device_type,
int render_process_id,
int render_frame_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
MediaDevicesManager::BoolDeviceTypes requested;
requested[static_cast<size_t>(device_type)] = true;
MediaDevicesManager::BoolDeviceTypes result = DoCheckPermissionsOnUIThread(
requested, render_process_id, render_frame_id);
return result[static_cast<size_t>(device_type)];
}
} // namespace
MediaDevicesPermissionChecker::MediaDevicesPermissionChecker()
: use_override_(base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kUseFakeUIForMediaStream)),
override_value_(
base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kUseFakeUIForMediaStream) != "deny") {}
MediaDevicesPermissionChecker::MediaDevicesPermissionChecker(
bool override_value)
: use_override_(true), override_value_(override_value) {}
bool MediaDevicesPermissionChecker::CheckPermissionOnUIThread(
MediaDeviceType device_type,
int render_process_id,
int render_frame_id) const {
if (use_override_)
return override_value_;
return CheckSinglePermissionOnUIThread(device_type, render_process_id,
render_frame_id);
}
void MediaDevicesPermissionChecker::IsSpeakerSelectionDenied(
int render_process_id,
int render_frame_id,
base::OnceCallback<void(MediaDevicesManager::PermissionDeniedState)>
callback) const {
if (use_override_) {
if (override_value_) {
std::move(callback).Run(
MediaDevicesManager::PermissionDeniedState::kNotDenied);
} else {
std::move(callback).Run(
MediaDevicesManager::PermissionDeniedState::kDenied);
}
return;
}
GetUIThreadTaskRunner({})->PostTaskAndReplyWithResult(
FROM_HERE,
base::BindOnce(&IsSpeakerSelectionPermissionDenied, render_process_id,
render_frame_id),
std::move(callback));
}
void MediaDevicesPermissionChecker::CheckPermission(
MediaDeviceType device_type,
int render_process_id,
int render_frame_id,
base::OnceCallback<void(bool)> callback) const {
if (use_override_) {
std::move(callback).Run(override_value_);
return;
}
GetUIThreadTaskRunner({})->PostTaskAndReplyWithResult(
FROM_HERE,
base::BindOnce(&CheckSinglePermissionOnUIThread, device_type,
render_process_id, render_frame_id),
std::move(callback));
}
void MediaDevicesPermissionChecker::CheckPermissions(
MediaDevicesManager::BoolDeviceTypes requested,
int render_process_id,
int render_frame_id,
base::OnceCallback<void(const MediaDevicesManager::BoolDeviceTypes&)>
callback) const {
if (use_override_) {
MediaDevicesManager::BoolDeviceTypes result;
result.fill(override_value_);
std::move(callback).Run(result);
return;
}
GetUIThreadTaskRunner({})->PostTaskAndReplyWithResult(
FROM_HERE,
base::BindOnce(&DoCheckPermissionsOnUIThread, requested,
render_process_id, render_frame_id),
std::move(callback));
}
// static
bool MediaDevicesPermissionChecker::HasPanTiltZoomPermissionGrantedOnUIThread(
int render_process_id,
int render_frame_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
#if BUILDFLAG(IS_ANDROID)
// The PTZ permission is automatically granted on Android. This way, zoom is
// not initially empty in ImageCapture. It is safe to do so because pan and
// tilt are not supported on Android.
return true;
#else
RenderFrameHostImpl* frame_host =
RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
if (!frame_host)
return false;
auto* permission_controller =
frame_host->GetBrowserContext()->GetPermissionController();
DCHECK(permission_controller);
blink::mojom::PermissionStatus status =
permission_controller->GetPermissionStatusForCurrentDocument(
blink::PermissionType::CAMERA_PAN_TILT_ZOOM, frame_host);
return status == blink::mojom::PermissionStatus::GRANTED;
#endif
}
} // namespace content