blob: b05393a58b03ef2ccdad6906a2707dd7308f75f5 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/media/media_stream_devices_controller.h"
#include <map>
#include <utility>
#include "base/auto_reset.h"
#include "base/callback_helpers.h"
#include "base/metrics/histogram.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/content_settings/host_content_settings_map_factory.h"
#include "chrome/browser/content_settings/tab_specific_content_settings.h"
#include "chrome/browser/media/media_capture_devices_dispatcher.h"
#include "chrome/browser/media/media_permission.h"
#include "chrome/browser/media/media_stream_capture_indicator.h"
#include "chrome/browser/media/media_stream_device_permissions.h"
#include "chrome/browser/permissions/permission_uma_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/features.h"
#include "chrome/common/pref_names.h"
#include "chrome/grit/generated_resources.h"
#include "components/content_settings/core/browser/host_content_settings_map.h"
#include "components/content_settings/core/common/content_settings_pattern.h"
#include "components/pref_registry/pref_registry_syncable.h"
#include "components/prefs/scoped_user_pref_update.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/permission_type.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/common/media_stream_request.h"
#include "content/public/common/origin_util.h"
#include "extensions/common/constants.h"
#include "grit/theme_resources.h"
#include "ui/base/l10n/l10n_util.h"
#if BUILDFLAG(ANDROID_JAVA_UI)
#include <vector>
#include "chrome/browser/android/preferences/pref_service_bridge.h"
#include "chrome/browser/permissions/permission_update_infobar_delegate_android.h"
#include "content/public/browser/android/content_view_core.h"
#include "ui/android/window_android.h"
#endif // BUILDFLAG(ANDROID_JAVA_UI)
using content::BrowserThread;
namespace {
// Returns true if the given ContentSettingsType is being requested in
// |request|.
bool ContentTypeIsRequested(content::PermissionType type,
const content::MediaStreamRequest& request) {
if (request.request_type == content::MEDIA_OPEN_DEVICE_PEPPER_ONLY)
return true;
if (type == content::PermissionType::AUDIO_CAPTURE)
return request.audio_type == content::MEDIA_DEVICE_AUDIO_CAPTURE;
if (type == content::PermissionType::VIDEO_CAPTURE)
return request.video_type == content::MEDIA_DEVICE_VIDEO_CAPTURE;
return false;
}
using PermissionActionCallback =
base::Callback<void(content::PermissionType, const GURL&)>;
// Calls |action_function| for each permission requested by |request|.
void RecordPermissionAction(const content::MediaStreamRequest& request,
PermissionActionCallback callback) {
if (ContentTypeIsRequested(content::PermissionType::VIDEO_CAPTURE, request)) {
callback.Run(content::PermissionType::VIDEO_CAPTURE,
request.security_origin);
}
if (ContentTypeIsRequested(content::PermissionType::AUDIO_CAPTURE, request)) {
callback.Run(content::PermissionType::AUDIO_CAPTURE,
request.security_origin);
}
}
// This helper class helps to measure the number of media stream requests that
// occur. It ensures that only one request will be recorded per navigation, per
// frame. TODO(raymes): Remove this when https://crbug.com/526324 is fixed.
class MediaPermissionRequestLogger : content::WebContentsObserver {
// Map of <render process id, render frame id> ->
// MediaPermissionRequestLogger.
using RequestMap =
std::map<std::pair<int, int>, scoped_ptr<MediaPermissionRequestLogger>>;
public:
static void LogRequest(content::WebContents* contents,
int render_process_id,
int render_frame_id,
bool is_secure) {
RequestMap::key_type key =
std::make_pair(render_process_id, render_frame_id);
if (!ContainsKey(GetRequestMap(), key)) {
UMA_HISTOGRAM_BOOLEAN("Pepper.SecureOrigin.MediaStreamRequest",
is_secure);
GetRequestMap()[key] =
make_scoped_ptr(new MediaPermissionRequestLogger(contents, key));
}
}
private:
MediaPermissionRequestLogger(content::WebContents* contents,
RequestMap::key_type key)
: WebContentsObserver(contents), key_(key) {}
void PageChanged(content::RenderFrameHost* render_frame_host) {
if (std::make_pair(render_frame_host->GetProcess()->GetID(),
render_frame_host->GetRoutingID()) == key_) {
GetRequestMap().erase(key_);
}
}
static RequestMap& GetRequestMap() {
CR_DEFINE_STATIC_LOCAL(RequestMap, request_map, ());
return request_map;
}
// content::WebContentsObserver overrides
void DidNavigateAnyFrame(
content::RenderFrameHost* render_frame_host,
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) override {
PageChanged(render_frame_host);
}
void RenderFrameDeleted(
content::RenderFrameHost* render_frame_host) override {
PageChanged(render_frame_host);
}
RequestMap::key_type key_;
};
} // namespace
MediaStreamDevicesController::MediaStreamDevicesController(
content::WebContents* web_contents,
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback)
: web_contents_(web_contents),
request_(request),
callback_(callback),
persist_permission_changes_(true) {
if (request_.request_type == content::MEDIA_OPEN_DEVICE_PEPPER_ONLY) {
MediaPermissionRequestLogger::LogRequest(
web_contents, request.render_process_id, request.render_frame_id,
content::IsOriginSecure(request_.security_origin));
}
profile_ = Profile::FromBrowserContext(web_contents->GetBrowserContext());
content_settings_ = TabSpecificContentSettings::FromWebContents(web_contents);
content::MediaStreamRequestResult denial_reason = content::MEDIA_DEVICE_OK;
old_audio_setting_ = GetContentSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
request_, &denial_reason);
old_video_setting_ = GetContentSetting(
CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA, request_, &denial_reason);
// If either setting is ask, we show the infobar.
if (old_audio_setting_ == CONTENT_SETTING_ASK ||
old_video_setting_ == CONTENT_SETTING_ASK) {
return;
}
#if BUILDFLAG(ANDROID_JAVA_UI)
std::vector<ContentSettingsType> content_settings_types;
if (IsAllowedForAudio())
content_settings_types.push_back(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC);
if (IsAllowedForVideo()) {
content_settings_types.push_back(
CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
}
// If the site had been previously granted the access to audio or video but
// Chrome is now missing the necessary permission, we need to show an infobar
// to resolve the difference.
if (!content_settings_types.empty() &&
PermissionUpdateInfoBarDelegate::ShouldShowPermissionInfobar(
web_contents, content_settings_types)) {
return;
}
#endif
// Otherwise we can run the callback immediately.
RunCallback(old_audio_setting_, old_video_setting_, denial_reason);
}
MediaStreamDevicesController::~MediaStreamDevicesController() {
if (!callback_.is_null()) {
RecordPermissionAction(
request_, base::Bind(PermissionUmaUtil::PermissionIgnored));
callback_.Run(content::MediaStreamDevices(),
content::MEDIA_DEVICE_FAILED_DUE_TO_SHUTDOWN,
scoped_ptr<content::MediaStreamUI>());
}
}
// static
void MediaStreamDevicesController::RegisterProfilePrefs(
user_prefs::PrefRegistrySyncable* prefs) {
prefs->RegisterBooleanPref(prefs::kVideoCaptureAllowed, true);
prefs->RegisterBooleanPref(prefs::kAudioCaptureAllowed, true);
prefs->RegisterListPref(prefs::kVideoCaptureAllowedUrls);
prefs->RegisterListPref(prefs::kAudioCaptureAllowedUrls);
}
bool MediaStreamDevicesController::IsAllowedForAudio() const {
return old_audio_setting_ == CONTENT_SETTING_ALLOW;
}
bool MediaStreamDevicesController::IsAllowedForVideo() const {
return old_video_setting_ == CONTENT_SETTING_ALLOW;
}
bool MediaStreamDevicesController::IsAskingForAudio() const {
return old_audio_setting_ == CONTENT_SETTING_ASK;
}
bool MediaStreamDevicesController::IsAskingForVideo() const {
return old_video_setting_ == CONTENT_SETTING_ASK;
}
const std::string& MediaStreamDevicesController::GetSecurityOriginSpec() const {
return request_.security_origin.spec();
}
void MediaStreamDevicesController::ForcePermissionDeniedTemporarily() {
base::AutoReset<bool> persist_permissions(
&persist_permission_changes_, false);
// TODO(tsergeant): Determine whether it is appropriate to record permission
// action metrics here, as this is a different sort of user action.
RunCallback(CONTENT_SETTING_BLOCK,
CONTENT_SETTING_BLOCK,
content::MEDIA_DEVICE_PERMISSION_DENIED);
}
int MediaStreamDevicesController::GetIconId() const {
if (IsAskingForVideo())
return IDR_INFOBAR_MEDIA_STREAM_CAMERA;
return IDR_INFOBAR_MEDIA_STREAM_MIC;
}
base::string16 MediaStreamDevicesController::GetMessageText() const {
int message_id = IDS_MEDIA_CAPTURE_AUDIO_AND_VIDEO;
if (!IsAskingForAudio())
message_id = IDS_MEDIA_CAPTURE_VIDEO_ONLY;
else if (!IsAskingForVideo())
message_id = IDS_MEDIA_CAPTURE_AUDIO_ONLY;
return l10n_util::GetStringFUTF16(
message_id, base::UTF8ToUTF16(GetSecurityOriginSpec()));
}
base::string16 MediaStreamDevicesController::GetMessageTextFragment() const {
int message_id = IDS_MEDIA_CAPTURE_AUDIO_AND_VIDEO_PERMISSION_FRAGMENT;
if (!IsAskingForAudio())
message_id = IDS_MEDIA_CAPTURE_VIDEO_ONLY_PERMISSION_FRAGMENT;
else if (!IsAskingForVideo())
message_id = IDS_MEDIA_CAPTURE_AUDIO_ONLY_PERMISSION_FRAGMENT;
return l10n_util::GetStringUTF16(message_id);
}
bool MediaStreamDevicesController::HasUserGesture() const {
return request_.user_gesture;
}
GURL MediaStreamDevicesController::GetOrigin() const {
return request_.security_origin;
}
void MediaStreamDevicesController::PermissionGranted() {
RecordPermissionAction(
request_, base::Bind(PermissionUmaUtil::PermissionGranted));
RunCallback(GetNewSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
old_audio_setting_, CONTENT_SETTING_ALLOW),
GetNewSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA,
old_video_setting_, CONTENT_SETTING_ALLOW),
content::MEDIA_DEVICE_PERMISSION_DENIED);
}
void MediaStreamDevicesController::PermissionDenied() {
RecordPermissionAction(
request_, base::Bind(PermissionUmaUtil::PermissionDenied));
RunCallback(GetNewSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
old_audio_setting_, CONTENT_SETTING_BLOCK),
GetNewSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA,
old_video_setting_, CONTENT_SETTING_BLOCK),
content::MEDIA_DEVICE_PERMISSION_DENIED);
}
void MediaStreamDevicesController::Cancelled() {
RecordPermissionAction(
request_, base::Bind(PermissionUmaUtil::PermissionDismissed));
RunCallback(old_audio_setting_, old_video_setting_,
content::MEDIA_DEVICE_PERMISSION_DISMISSED);
}
void MediaStreamDevicesController::RequestFinished() {
delete this;
}
content::MediaStreamDevices MediaStreamDevicesController::GetDevices(
ContentSetting audio_setting,
ContentSetting video_setting) {
bool audio_allowed = audio_setting == CONTENT_SETTING_ALLOW;
bool video_allowed = video_setting == CONTENT_SETTING_ALLOW;
if (!audio_allowed && !video_allowed)
return content::MediaStreamDevices();
content::MediaStreamDevices devices;
switch (request_.request_type) {
case content::MEDIA_OPEN_DEVICE_PEPPER_ONLY: {
const content::MediaStreamDevice* device = NULL;
// For open device request, when requested device_id is empty, pick
// the first available of the given type. If requested device_id is
// not empty, return the desired device if it's available. Otherwise,
// return no device.
if (audio_allowed &&
request_.audio_type == content::MEDIA_DEVICE_AUDIO_CAPTURE) {
DCHECK_EQ(content::MEDIA_NO_SERVICE, request_.video_type);
if (!request_.requested_audio_device_id.empty()) {
device =
MediaCaptureDevicesDispatcher::GetInstance()
->GetRequestedAudioDevice(request_.requested_audio_device_id);
} else {
device = MediaCaptureDevicesDispatcher::GetInstance()
->GetFirstAvailableAudioDevice();
}
} else if (video_allowed &&
request_.video_type == content::MEDIA_DEVICE_VIDEO_CAPTURE) {
DCHECK_EQ(content::MEDIA_NO_SERVICE, request_.audio_type);
// Pepper API opens only one device at a time.
if (!request_.requested_video_device_id.empty()) {
device =
MediaCaptureDevicesDispatcher::GetInstance()
->GetRequestedVideoDevice(request_.requested_video_device_id);
} else {
device = MediaCaptureDevicesDispatcher::GetInstance()
->GetFirstAvailableVideoDevice();
}
}
if (device)
devices.push_back(*device);
break;
}
case content::MEDIA_GENERATE_STREAM: {
bool get_default_audio_device = audio_allowed;
bool get_default_video_device = video_allowed;
// Get the exact audio or video device if an id is specified.
if (audio_allowed && !request_.requested_audio_device_id.empty()) {
const content::MediaStreamDevice* audio_device =
MediaCaptureDevicesDispatcher::GetInstance()
->GetRequestedAudioDevice(request_.requested_audio_device_id);
if (audio_device) {
devices.push_back(*audio_device);
get_default_audio_device = false;
}
}
if (video_allowed && !request_.requested_video_device_id.empty()) {
const content::MediaStreamDevice* video_device =
MediaCaptureDevicesDispatcher::GetInstance()
->GetRequestedVideoDevice(request_.requested_video_device_id);
if (video_device) {
devices.push_back(*video_device);
get_default_video_device = false;
}
}
// If either or both audio and video devices were requested but not
// specified by id, get the default devices.
if (get_default_audio_device || get_default_video_device) {
MediaCaptureDevicesDispatcher::GetInstance()
->GetDefaultDevicesForProfile(profile_, get_default_audio_device,
get_default_video_device, &devices);
}
break;
}
case content::MEDIA_DEVICE_ACCESS: {
// Get the default devices for the request.
MediaCaptureDevicesDispatcher::GetInstance()->GetDefaultDevicesForProfile(
profile_, audio_allowed, video_allowed, &devices);
break;
}
case content::MEDIA_ENUMERATE_DEVICES: {
// Do nothing.
NOTREACHED();
break;
}
} // switch
if (audio_allowed) {
HostContentSettingsMapFactory::GetForProfile(profile_)
->UpdateLastUsageByPattern(
ContentSettingsPattern::FromURLNoWildcard(request_.security_origin),
ContentSettingsPattern::Wildcard(),
CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC);
}
if (video_allowed) {
HostContentSettingsMapFactory::GetForProfile(profile_)
->UpdateLastUsageByPattern(
ContentSettingsPattern::FromURLNoWildcard(request_.security_origin),
ContentSettingsPattern::Wildcard(),
CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
}
return devices;
}
void MediaStreamDevicesController::RunCallback(
ContentSetting audio_setting,
ContentSetting video_setting,
content::MediaStreamRequestResult denial_reason) {
CHECK(!callback_.is_null());
// If the kill switch is on we don't update the tab context or persist the
// setting.
if (persist_permission_changes_ &&
denial_reason != content::MEDIA_DEVICE_KILL_SWITCH_ON) {
StorePermission(audio_setting, video_setting);
UpdateTabSpecificContentSettings(audio_setting, video_setting);
}
content::MediaStreamDevices devices =
GetDevices(audio_setting, video_setting);
// If either audio or video are allowed then the callback should report
// success, otherwise we report |denial_reason|.
content::MediaStreamRequestResult request_result = content::MEDIA_DEVICE_OK;
if (audio_setting != CONTENT_SETTING_ALLOW &&
video_setting != CONTENT_SETTING_ALLOW) {
DCHECK_NE(content::MEDIA_DEVICE_OK, denial_reason);
request_result = denial_reason;
} else if (devices.empty()) {
// Even if one of the content settings was allowed, if there are no devices
// at this point we still report a failure.
request_result = content::MEDIA_DEVICE_NO_HARDWARE;
}
scoped_ptr<content::MediaStreamUI> ui;
if (!devices.empty()) {
ui = MediaCaptureDevicesDispatcher::GetInstance()
->GetMediaStreamCaptureIndicator()
->RegisterMediaStream(web_contents_, devices);
}
base::ResetAndReturn(&callback_).Run(devices, request_result, std::move(ui));
}
void MediaStreamDevicesController::StorePermission(
ContentSetting new_audio_setting,
ContentSetting new_video_setting) const {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
ContentSettingsPattern primary_pattern =
ContentSettingsPattern::FromURLNoWildcard(request_.security_origin);
bool is_pepper_request =
request_.request_type == content::MEDIA_OPEN_DEVICE_PEPPER_ONLY;
if (IsAskingForAudio() && new_audio_setting != CONTENT_SETTING_ASK) {
if (ShouldPersistContentSetting(new_audio_setting, request_.security_origin,
is_pepper_request)) {
HostContentSettingsMapFactory::GetForProfile(profile_)->SetContentSetting(
primary_pattern, ContentSettingsPattern::Wildcard(),
CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC, std::string(),
new_audio_setting);
}
}
if (IsAskingForVideo() && new_video_setting != CONTENT_SETTING_ASK) {
if (ShouldPersistContentSetting(new_video_setting, request_.security_origin,
is_pepper_request)) {
HostContentSettingsMapFactory::GetForProfile(profile_)->SetContentSetting(
primary_pattern, ContentSettingsPattern::Wildcard(),
CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA, std::string(),
new_video_setting);
}
}
}
void MediaStreamDevicesController::UpdateTabSpecificContentSettings(
ContentSetting audio_setting,
ContentSetting video_setting) const {
if (!content_settings_)
return;
TabSpecificContentSettings::MicrophoneCameraState microphone_camera_state =
TabSpecificContentSettings::MICROPHONE_CAMERA_NOT_ACCESSED;
std::string selected_audio_device;
std::string selected_video_device;
std::string requested_audio_device = request_.requested_audio_device_id;
std::string requested_video_device = request_.requested_video_device_id;
// TODO(raymes): Why do we use the defaults here for the selected devices?
// Shouldn't we just use the devices that were actually selected?
PrefService* prefs = Profile::FromBrowserContext(
web_contents_->GetBrowserContext())->GetPrefs();
if (audio_setting != CONTENT_SETTING_DEFAULT) {
selected_audio_device =
requested_audio_device.empty()
? prefs->GetString(prefs::kDefaultAudioCaptureDevice)
: requested_audio_device;
microphone_camera_state |=
TabSpecificContentSettings::MICROPHONE_ACCESSED |
(audio_setting == CONTENT_SETTING_ALLOW
? 0
: TabSpecificContentSettings::MICROPHONE_BLOCKED);
}
if (video_setting != CONTENT_SETTING_DEFAULT) {
selected_video_device =
requested_video_device.empty()
? prefs->GetString(prefs::kDefaultVideoCaptureDevice)
: requested_video_device;
microphone_camera_state |=
TabSpecificContentSettings::CAMERA_ACCESSED |
(video_setting == CONTENT_SETTING_ALLOW
? 0
: TabSpecificContentSettings::CAMERA_BLOCKED);
}
content_settings_->OnMediaStreamPermissionSet(
request_.security_origin, microphone_camera_state, selected_audio_device,
selected_video_device, requested_audio_device, requested_video_device);
}
ContentSetting MediaStreamDevicesController::GetContentSetting(
ContentSettingsType content_type,
const content::MediaStreamRequest& request,
content::MediaStreamRequestResult* denial_reason) const {
DCHECK(content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC ||
content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
std::string requested_device_id;
if (content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC)
requested_device_id = request.requested_audio_device_id;
else if (content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA)
requested_device_id = request.requested_video_device_id;
if (!IsUserAcceptAllowed(content_type)) {
*denial_reason = content::MEDIA_DEVICE_PERMISSION_DENIED;
return CONTENT_SETTING_BLOCK;
}
content::PermissionType permission_type;
if (content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC) {
permission_type = content::PermissionType::AUDIO_CAPTURE;
} else {
DCHECK(content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
permission_type = content::PermissionType::VIDEO_CAPTURE;
}
if (ContentTypeIsRequested(permission_type, request)) {
bool is_insecure_pepper_request =
request.request_type == content::MEDIA_OPEN_DEVICE_PEPPER_ONLY &&
request.security_origin.SchemeIs(url::kHttpScheme);
MediaPermission permission(
content_type, is_insecure_pepper_request, request.security_origin,
web_contents_->GetLastCommittedURL().GetOrigin(), profile_);
return permission.GetPermissionStatusWithDeviceRequired(requested_device_id,
denial_reason);
}
// Return the default content setting if the device is not requested.
return CONTENT_SETTING_DEFAULT;
}
ContentSetting MediaStreamDevicesController::GetNewSetting(
ContentSettingsType content_type,
ContentSetting old_setting,
ContentSetting user_decision) const {
DCHECK(user_decision == CONTENT_SETTING_ALLOW ||
user_decision == CONTENT_SETTING_BLOCK);
ContentSetting result = old_setting;
if (old_setting == CONTENT_SETTING_ASK) {
if (user_decision == CONTENT_SETTING_ALLOW &&
IsUserAcceptAllowed(content_type)) {
result = CONTENT_SETTING_ALLOW;
} else if (user_decision == CONTENT_SETTING_BLOCK) {
result = CONTENT_SETTING_BLOCK;
}
}
return result;
}
bool MediaStreamDevicesController::IsUserAcceptAllowed(
ContentSettingsType content_type) const {
#if BUILDFLAG(ANDROID_JAVA_UI)
content::ContentViewCore* cvc =
content::ContentViewCore::FromWebContents(web_contents_);
if (!cvc)
return false;
ui::WindowAndroid* window_android = cvc->GetWindowAndroid();
if (!window_android)
return false;
std::string android_permission =
PrefServiceBridge::GetAndroidPermissionForContentSetting(content_type);
bool android_permission_blocked = false;
if (!android_permission.empty()) {
android_permission_blocked =
!window_android->HasPermission(android_permission) &&
!window_android->CanRequestPermission(android_permission);
}
if (android_permission_blocked)
return false;
// Don't approve device requests if the tab was hidden.
// TODO(qinmin): Add a test for this. http://crbug.com/396869.
// TODO(raymes): Shouldn't this apply to all permissions not just audio/video?
return web_contents_->GetRenderWidgetHostView()->IsShowing();
#endif
return true;
}