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content / browser / permissions / permission_controller_impl.cc [blame]
// Copyright 2018 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/permissions/permission_controller_impl.h"
#include "base/functional/bind.h"
#include "content/browser/permissions/permission_service_context.h"
#include "content/browser/permissions/permission_util.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/disallow_activation_reason.h"
#include "content/public/browser/permission_controller.h"
#include "content/public/browser/permission_controller_delegate.h"
#include "content/public/browser/permission_request_description.h"
#include "content/public/browser/permission_result.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "third_party/blink/public/common/permissions/permission_utils.h"
#include "third_party/blink/public/common/web_preferences/web_preferences.h"
#include "third_party/blink/public/mojom/devtools/console_message.mojom.h"
#include "third_party/blink/public/mojom/permissions/permission_status.mojom.h"
#include "url/origin.h"
#if !BUILDFLAG(IS_ANDROID)
#include "content/common/features.h"
#endif
namespace content {
namespace {
constexpr char kPermissionBlockedFencedFrameMessage[] =
"%s permission has been blocked because it was requested inside a fenced "
"frame. Fenced frames don't currently support permission requests.";
#if !BUILDFLAG(IS_ANDROID)
const char kPermissionBlockedPermissionsPolicyMessage[] =
"%s permission has been blocked because of a permissions policy applied to"
" the current document. See https://goo.gl/EuHzyv for more details.";
#endif
std::optional<blink::scheduler::WebSchedulerTrackedFeature>
PermissionToSchedulingFeature(PermissionType permission_name) {
switch (permission_name) {
case PermissionType::MIDI:
case PermissionType::MIDI_SYSEX:
return blink::scheduler::WebSchedulerTrackedFeature::
kRequestedMIDIPermission;
case PermissionType::AUDIO_CAPTURE:
return blink::scheduler::WebSchedulerTrackedFeature::
kRequestedAudioCapturePermission;
case PermissionType::VIDEO_CAPTURE:
return blink::scheduler::WebSchedulerTrackedFeature::
kRequestedVideoCapturePermission;
case PermissionType::BACKGROUND_SYNC:
case PermissionType::BACKGROUND_FETCH:
case PermissionType::PERIODIC_BACKGROUND_SYNC:
return blink::scheduler::WebSchedulerTrackedFeature::
kRequestedBackgroundWorkPermission;
case PermissionType::STORAGE_ACCESS_GRANT:
// These two permissions are in the process of being split; they share logic
// for now. TODO(crbug.com/40246640): split and consolidate as much as
// possible.
case PermissionType::TOP_LEVEL_STORAGE_ACCESS:
return blink::scheduler::WebSchedulerTrackedFeature::
kRequestedStorageAccessGrant;
case PermissionType::PROTECTED_MEDIA_IDENTIFIER:
case PermissionType::DURABLE_STORAGE:
case PermissionType::CLIPBOARD_READ_WRITE:
case PermissionType::CLIPBOARD_SANITIZED_WRITE:
case PermissionType::PAYMENT_HANDLER:
case PermissionType::IDLE_DETECTION:
case PermissionType::WAKE_LOCK_SCREEN:
case PermissionType::WAKE_LOCK_SYSTEM:
case PermissionType::NFC:
case PermissionType::NUM:
case PermissionType::SENSORS:
case PermissionType::AR:
case PermissionType::VR:
case PermissionType::HAND_TRACKING:
case PermissionType::CAMERA_PAN_TILT_ZOOM:
case PermissionType::WINDOW_MANAGEMENT:
case PermissionType::LOCAL_FONTS:
case PermissionType::DISPLAY_CAPTURE:
case PermissionType::GEOLOCATION:
case PermissionType::NOTIFICATIONS:
case PermissionType::CAPTURED_SURFACE_CONTROL:
case PermissionType::SMART_CARD:
case PermissionType::WEB_PRINTING:
case PermissionType::SPEAKER_SELECTION:
case PermissionType::KEYBOARD_LOCK:
case PermissionType::POINTER_LOCK:
case PermissionType::AUTOMATIC_FULLSCREEN:
case PermissionType::WEB_APP_INSTALLATION:
return std::nullopt;
}
}
void LogPermissionBlockedMessage(PermissionType permission,
RenderFrameHost* rfh,
const char* message) {
rfh->GetOutermostMainFrame()->AddMessageToConsole(
blink::mojom::ConsoleMessageLevel::kWarning,
base::StringPrintfNonConstexpr(
message, blink::GetPermissionString(permission).c_str()));
}
#if !BUILDFLAG(IS_ANDROID)
bool PermissionAllowedByPermissionsPolicy(PermissionType permission_type,
RenderFrameHost* rfh) {
const auto permission_policy =
blink::PermissionTypeToPermissionsPolicyFeature(permission_type);
// Some features don't have an associated permissions policy yet. Allow those.
if (!permission_policy.has_value()) {
return true;
}
return rfh->IsFeatureEnabled(permission_policy.value());
}
#endif
PermissionResult VerifyContextOfCurrentDocument(
PermissionType permission,
RenderFrameHost* render_frame_host) {
WebContents* web_contents =
WebContents::FromRenderFrameHost(render_frame_host);
DCHECK(web_contents);
// Permissions are denied for fenced frames.
if (render_frame_host->IsNestedWithinFencedFrame()) {
return PermissionResult(PermissionStatus::DENIED,
PermissionStatusSource::FENCED_FRAME);
}
#if !BUILDFLAG(IS_ANDROID)
if (base::FeatureList::IsEnabled(
features::kPermissionsPolicyVerificationInContent)) {
// Check whether the feature is enabled for the frame by permissions policy.
if (!PermissionAllowedByPermissionsPolicy(permission, render_frame_host)) {
return PermissionResult(PermissionStatus::DENIED,
PermissionStatusSource::FEATURE_POLICY);
}
}
#endif
return PermissionResult(PermissionStatus::ASK,
PermissionStatusSource::UNSPECIFIED);
}
bool IsRequestAllowed(
const std::vector<blink::PermissionType>& permissions,
RenderFrameHost* render_frame_host,
base::OnceCallback<void(const std::vector<PermissionStatus>&)>& callback) {
if (!render_frame_host) {
// Permission request is not allowed without a valid RenderFrameHost.
std::move(callback).Run(std::vector<PermissionStatus>(
permissions.size(), PermissionStatus::ASK));
return false;
}
// Verifies and evicts `render_frame_host` from BFcache. Returns true if
// render_frame_host was evicted, returns false otherwise.
if (render_frame_host->IsInactiveAndDisallowActivation(
DisallowActivationReasonId::kRequestPermission)) {
std::move(callback).Run(std::vector<PermissionStatus>(
permissions.size(), PermissionStatus::ASK));
return false;
}
// Verify each permission independently to generate proper warning messages.
bool is_permission_allowed = true;
for (PermissionType permission : permissions) {
PermissionResult result =
VerifyContextOfCurrentDocument(permission, render_frame_host);
if (result.status == PermissionStatus::DENIED) {
switch (result.source) {
case PermissionStatusSource::FENCED_FRAME:
LogPermissionBlockedMessage(permission, render_frame_host,
kPermissionBlockedFencedFrameMessage);
break;
#if !BUILDFLAG(IS_ANDROID)
case PermissionStatusSource::FEATURE_POLICY:
LogPermissionBlockedMessage(
permission, render_frame_host,
kPermissionBlockedPermissionsPolicyMessage);
break;
#endif
default:
break;
}
is_permission_allowed = false;
}
}
if (!is_permission_allowed) {
std::move(callback).Run(std::vector<PermissionStatus>(
permissions.size(), PermissionStatus::DENIED));
return false;
}
return true;
}
void NotifySchedulerAboutPermissionRequest(RenderFrameHost* render_frame_host,
PermissionType permission_name) {
DCHECK(render_frame_host);
std::optional<blink::scheduler::WebSchedulerTrackedFeature> feature =
PermissionToSchedulingFeature(permission_name);
if (!feature) {
return;
}
static_cast<RenderFrameHostImpl*>(render_frame_host)
->OnBackForwardCacheDisablingStickyFeatureUsed(feature.value());
}
// Calls |original_cb|, a callback expecting the PermissionStatus of a set of
// permissions, after joining the results of overridden permissions and
// non-overridden permissions.
// |overridden_results| is an array of permissions that have already been
// overridden by DevTools.
// |delegated_results| contains results that did not have overrides - they
// were delegated - their results need to be inserted in order.
void MergeOverriddenAndDelegatedResults(
base::OnceCallback<void(const std::vector<PermissionStatus>&)> original_cb,
std::vector<std::optional<PermissionStatus>> overridden_results,
const std::vector<PermissionStatus>& delegated_results) {
std::vector<PermissionStatus> full_results;
full_results.reserve(overridden_results.size());
auto delegated_it = delegated_results.begin();
for (auto& status : overridden_results) {
if (!status) {
CHECK(delegated_it != delegated_results.end());
status.emplace(*delegated_it++);
}
full_results.emplace_back(*status);
}
CHECK(delegated_it == delegated_results.end());
std::move(original_cb).Run(full_results);
}
void PermissionStatusCallbackWrapper(
base::OnceCallback<void(PermissionStatus)> callback,
const std::vector<PermissionStatus>& vector) {
DCHECK_EQ(1ul, vector.size());
std::move(callback).Run(vector.at(0));
}
// Removes from |description.permissions| the entries that have an override
// status (as per the provided overrides). Returns a result vector that contains
// all the statuses for permissions after applying overrides, using `nullopt`
// for those permissions that do not have an override.
std::vector<std::optional<blink::mojom::PermissionStatus>> OverridePermissions(
PermissionRequestDescription& description,
RenderFrameHost* render_frame_host,
const PermissionOverrides& permission_overrides) {
std::vector<blink::PermissionType> permissions_without_overrides;
std::vector<std::optional<blink::mojom::PermissionStatus>> results;
const url::Origin& origin = render_frame_host->GetLastCommittedOrigin();
for (const auto& permission : description.permissions) {
std::optional<blink::mojom::PermissionStatus> override_status =
permission_overrides.Get(origin, permission);
if (!override_status) {
permissions_without_overrides.push_back(permission);
}
results.push_back(override_status);
}
description.permissions = std::move(permissions_without_overrides);
return results;
}
} // namespace
PermissionControllerImpl::PermissionControllerImpl(
BrowserContext* browser_context)
: browser_context_(browser_context) {}
// static
PermissionControllerImpl* PermissionControllerImpl::FromBrowserContext(
BrowserContext* browser_context) {
return static_cast<PermissionControllerImpl*>(
browser_context->GetPermissionController());
}
PermissionControllerImpl::~PermissionControllerImpl() {
// Ideally we need to unsubscribe from delegate subscriptions here,
// but browser_context_ is already destroyed by this point, so
// we can't fetch our delegate.
}
PermissionStatus PermissionControllerImpl::GetSubscriptionCurrentValue(
const PermissionStatusSubscription& subscription) {
// The RFH may be null if the request is for a worker.
RenderFrameHost* rfh = RenderFrameHost::FromID(subscription.render_process_id,
subscription.render_frame_id);
if (rfh) {
return GetPermissionStatusForCurrentDocument(subscription.permission, rfh);
}
RenderProcessHost* rph =
RenderProcessHost::FromID(subscription.render_process_id);
if (rph) {
return GetPermissionStatusForWorker(
subscription.permission, rph,
url::Origin::Create(subscription.requesting_origin));
}
return GetPermissionStatusInternal(subscription.permission,
subscription.requesting_origin,
subscription.embedding_origin);
}
PermissionControllerImpl::SubscriptionsStatusMap
PermissionControllerImpl::GetSubscriptionsStatuses(
const std::optional<GURL>& origin) {
SubscriptionsStatusMap statuses;
for (SubscriptionsMap::iterator iter(&subscriptions_); !iter.IsAtEnd();
iter.Advance()) {
PermissionStatusSubscription* subscription = iter.GetCurrentValue();
if (origin.has_value() && subscription->requesting_origin != *origin) {
continue;
}
statuses[iter.GetCurrentKey()] = GetSubscriptionCurrentValue(*subscription);
}
return statuses;
}
void PermissionControllerImpl::NotifyChangedSubscriptions(
const SubscriptionsStatusMap& old_statuses) {
std::vector<base::OnceClosure> callbacks;
for (const auto& it : old_statuses) {
auto key = it.first;
PermissionStatusSubscription* subscription = subscriptions_.Lookup(key);
if (!subscription) {
continue;
}
PermissionStatus old_status = it.second;
PermissionStatus new_status = GetSubscriptionCurrentValue(*subscription);
if (new_status != old_status) {
// This is a private method that is called internally if a permission
// status was set by DevTools. Suppress permission status override
// verification and always notify listeners.
callbacks.push_back(base::BindOnce(subscription->callback, new_status,
/*ignore_status_override=*/true));
}
}
for (auto& callback : callbacks)
std::move(callback).Run();
}
PermissionControllerImpl::OverrideStatus
PermissionControllerImpl::GrantOverridesForDevTools(
const std::optional<url::Origin>& origin,
const std::vector<PermissionType>& permissions) {
return GrantPermissionOverrides(origin, permissions);
}
PermissionControllerImpl::OverrideStatus
PermissionControllerImpl::SetOverrideForDevTools(
const std::optional<url::Origin>& origin,
PermissionType permission,
const PermissionStatus& status) {
return SetPermissionOverride(origin, permission, status);
}
void PermissionControllerImpl::ResetOverridesForDevTools() {
ResetPermissionOverrides();
}
PermissionControllerImpl::OverrideStatus
PermissionControllerImpl::SetPermissionOverride(
const std::optional<url::Origin>& origin,
PermissionType permission,
const PermissionStatus& status) {
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (delegate && !delegate->IsPermissionOverridable(permission, origin)) {
return OverrideStatus::kOverrideNotSet;
}
const auto old_statuses = GetSubscriptionsStatuses(
origin ? std::make_optional(origin->GetURL()) : std::nullopt);
permission_overrides_.Set(origin, permission, status);
NotifyChangedSubscriptions(old_statuses);
return OverrideStatus::kOverrideSet;
}
PermissionControllerImpl::OverrideStatus
PermissionControllerImpl::GrantPermissionOverrides(
const std::optional<url::Origin>& origin,
const std::vector<PermissionType>& permissions) {
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (delegate) {
for (const auto permission : permissions) {
if (!delegate->IsPermissionOverridable(permission, origin)) {
return OverrideStatus::kOverrideNotSet;
}
}
}
const auto old_statuses = GetSubscriptionsStatuses(
origin ? std::make_optional(origin->GetURL()) : std::nullopt);
permission_overrides_.GrantPermissions(origin, permissions);
// If any statuses changed because they lose overrides or the new overrides
// modify their previous state (overridden or not), subscribers must be
// notified manually.
NotifyChangedSubscriptions(old_statuses);
return OverrideStatus::kOverrideSet;
}
void PermissionControllerImpl::ResetPermissionOverrides() {
const auto old_statuses = GetSubscriptionsStatuses();
permission_overrides_ = PermissionOverrides();
// If any statuses changed because they lost their overrides, the subscribers
// must be notified manually.
NotifyChangedSubscriptions(old_statuses);
}
void PermissionControllerImpl::RequestPermissions(
RenderFrameHost* render_frame_host,
PermissionRequestDescription request_description,
base::OnceCallback<void(const std::vector<PermissionStatus>&)> callback) {
if (!IsRequestAllowed(request_description.permissions, render_frame_host,
callback)) {
return;
}
for (PermissionType permission : request_description.permissions) {
NotifySchedulerAboutPermissionRequest(render_frame_host, permission);
}
std::vector<std::optional<blink::mojom::PermissionStatus>> override_results =
OverridePermissions(request_description, render_frame_host,
permission_overrides_);
auto wrapper = base::BindOnce(&MergeOverriddenAndDelegatedResults,
std::move(callback), override_results);
if (request_description.permissions.empty()) {
std::move(wrapper).Run({});
return;
}
// Use delegate to find statuses of other permissions that have been requested
// but do not have overrides.
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
std::move(wrapper).Run(std::vector<PermissionStatus>(
request_description.permissions.size(), PermissionStatus::DENIED));
return;
}
delegate->RequestPermissions(render_frame_host, request_description,
std::move(wrapper));
}
void PermissionControllerImpl::RequestPermissionFromCurrentDocument(
RenderFrameHost* render_frame_host,
PermissionRequestDescription request_description,
base::OnceCallback<void(PermissionStatus)> callback) {
RequestPermissionsFromCurrentDocument(
render_frame_host, std::move(request_description),
base::BindOnce(&PermissionStatusCallbackWrapper, std::move(callback)));
}
void PermissionControllerImpl::RequestPermissionsFromCurrentDocument(
RenderFrameHost* render_frame_host,
PermissionRequestDescription request_description,
base::OnceCallback<void(const std::vector<PermissionStatus>&)> callback) {
if (!IsRequestAllowed(request_description.permissions, render_frame_host,
callback)) {
return;
}
for (PermissionType permission : request_description.permissions) {
NotifySchedulerAboutPermissionRequest(render_frame_host, permission);
}
request_description.requesting_origin =
render_frame_host->GetLastCommittedOrigin().GetURL();
std::vector<std::optional<blink::mojom::PermissionStatus>> override_results =
OverridePermissions(request_description, render_frame_host,
permission_overrides_);
auto wrapper = base::BindOnce(&MergeOverriddenAndDelegatedResults,
std::move(callback), override_results);
if (request_description.permissions.empty()) {
std::move(wrapper).Run({});
return;
}
// Use delegate to find statuses of other permissions that have been requested
// but do not have overrides.
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
std::move(wrapper).Run(std::vector<PermissionStatus>(
request_description.permissions.size(), PermissionStatus::DENIED));
return;
}
delegate->RequestPermissionsFromCurrentDocument(
render_frame_host, request_description, std::move(wrapper));
}
void PermissionControllerImpl::ResetPermission(blink::PermissionType permission,
const url::Origin& origin) {
ResetPermission(permission, origin.GetURL(), origin.GetURL());
}
PermissionStatus PermissionControllerImpl::GetPermissionStatusInternal(
PermissionType permission,
const GURL& requesting_origin,
const GURL& embedding_origin) {
std::optional<PermissionStatus> status = permission_overrides_.Get(
url::Origin::Create(requesting_origin), permission);
if (status) {
return *status;
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
return PermissionStatus::DENIED;
}
return delegate->GetPermissionStatus(permission, requesting_origin,
embedding_origin);
}
PermissionStatus
PermissionControllerImpl::GetPermissionStatusForCurrentDocumentInternal(
PermissionType permission,
RenderFrameHost* render_frame_host,
bool should_include_device_status) {
std::optional<PermissionStatus> status = permission_overrides_.Get(
render_frame_host->GetLastCommittedOrigin(), permission);
if (status) {
return *status;
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
return PermissionStatus::DENIED;
}
if (VerifyContextOfCurrentDocument(permission, render_frame_host).status ==
PermissionStatus::DENIED) {
return PermissionStatus::DENIED;
}
return delegate->GetPermissionStatusForCurrentDocument(
permission, render_frame_host, should_include_device_status);
}
PermissionStatus PermissionControllerImpl::GetPermissionStatusForWorker(
PermissionType permission,
RenderProcessHost* render_process_host,
const url::Origin& worker_origin) {
std::optional<PermissionStatus> status =
permission_overrides_.Get(worker_origin, permission);
if (status.has_value()) {
return *status;
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
return PermissionStatus::DENIED;
}
return delegate->GetPermissionStatusForWorker(permission, render_process_host,
worker_origin.GetURL());
}
PermissionStatus
PermissionControllerImpl::GetPermissionStatusForCurrentDocument(
PermissionType permission,
RenderFrameHost* render_frame_host) {
return GetPermissionStatusForCurrentDocumentInternal(permission,
render_frame_host);
}
PermissionResult
PermissionControllerImpl::GetPermissionResultForCurrentDocument(
PermissionType permission,
RenderFrameHost* render_frame_host) {
std::optional<PermissionStatus> status = permission_overrides_.Get(
render_frame_host->GetLastCommittedOrigin(), permission);
if (status) {
return PermissionResult(*status, PermissionStatusSource::UNSPECIFIED);
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
return PermissionResult(PermissionStatus::DENIED,
PermissionStatusSource::UNSPECIFIED);
}
PermissionResult result =
VerifyContextOfCurrentDocument(permission, render_frame_host);
if (result.status == PermissionStatus::DENIED) {
return result;
}
return delegate->GetPermissionResultForCurrentDocument(
permission, render_frame_host, /*should_include_device_status=*/false);
}
PermissionResult
PermissionControllerImpl::GetPermissionResultForOriginWithoutContext(
PermissionType permission,
const url::Origin& origin) {
return GetPermissionResultForOriginWithoutContext(permission, origin, origin);
}
PermissionResult
PermissionControllerImpl::GetPermissionResultForOriginWithoutContext(
PermissionType permission,
const url::Origin& requesting_origin,
const url::Origin& embedding_origin) {
std::optional<PermissionStatus> status =
permission_overrides_.Get(requesting_origin, permission);
if (status) {
return PermissionResult(*status, PermissionStatusSource::UNSPECIFIED);
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
return PermissionResult(PermissionStatus::DENIED,
PermissionStatusSource::UNSPECIFIED);
}
return delegate->GetPermissionResultForOriginWithoutContext(
permission, requesting_origin, embedding_origin);
}
PermissionStatus
PermissionControllerImpl::GetPermissionStatusForEmbeddedRequester(
blink::PermissionType permission,
RenderFrameHost* render_frame_host,
const url::Origin& requesting_origin) {
// This API is suited only for `TOP_LEVEL_STORAGE_ACCESS`. Do not use it for
// other permissions unless discussed with `permissions-core@`.
DCHECK(permission == blink::PermissionType::TOP_LEVEL_STORAGE_ACCESS);
if (permission != blink::PermissionType::TOP_LEVEL_STORAGE_ACCESS) {
return PermissionStatus::DENIED;
}
std::optional<PermissionStatus> status =
permission_overrides_.Get(requesting_origin, permission);
if (status) {
return *status;
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
return PermissionStatus::DENIED;
}
if (VerifyContextOfCurrentDocument(permission, render_frame_host).status ==
PermissionStatus::DENIED) {
return PermissionStatus::DENIED;
}
return delegate->GetPermissionStatusForEmbeddedRequester(
permission, render_frame_host, requesting_origin);
}
PermissionStatus PermissionControllerImpl::GetCombinedPermissionAndDeviceStatus(
PermissionType permission,
RenderFrameHost* render_frame_host) {
CHECK(permission == blink::PermissionType::VIDEO_CAPTURE ||
permission == blink::PermissionType::AUDIO_CAPTURE ||
permission == blink::PermissionType::GEOLOCATION);
return GetPermissionStatusForCurrentDocumentInternal(
permission, render_frame_host, /*should_include_device_status=*/true);
}
void PermissionControllerImpl::ResetPermission(PermissionType permission,
const GURL& requesting_origin,
const GURL& embedding_origin) {
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (!delegate) {
return;
}
delegate->ResetPermission(permission, requesting_origin, embedding_origin);
}
void PermissionControllerImpl::PermissionStatusChange(
const base::RepeatingCallback<void(PermissionStatus)>& callback,
SubscriptionId subscription_id,
PermissionStatus status,
bool ignore_status_override) {
// Check if the permission status override should be ignored. The verification
// is suppressed if a permission status change was initiated by DevTools. In
// all other cases permission status override is always checked.
if (ignore_status_override) {
callback.Run(status);
return;
}
PermissionStatusSubscription* subscription =
subscriptions_.Lookup(subscription_id);
DCHECK(subscription);
// TODO(crbug.com/40056329) Adding this block to prevent crashes while we
// investigate the root cause of the crash. This block will be removed as the
// DCHECK() above should be enough.
if (!subscription) {
return;
}
std::optional<PermissionStatus> status_override = permission_overrides_.Get(
url::Origin::Create(subscription->requesting_origin),
subscription->permission);
if (!status_override.has_value()) {
callback.Run(status);
}
}
PermissionController::SubscriptionId
PermissionControllerImpl::SubscribeToPermissionStatusChange(
PermissionType permission,
RenderProcessHost* render_process_host,
RenderFrameHost* render_frame_host,
const GURL& requesting_origin,
bool should_include_device_status,
const base::RepeatingCallback<void(PermissionStatus)>& callback) {
DCHECK(!render_process_host || !render_frame_host);
auto id = subscription_id_generator_.GenerateNextId();
auto subscription = std::make_unique<PermissionStatusSubscription>();
subscription->permission = permission;
subscription->callback =
base::BindRepeating(&PermissionControllerImpl::PermissionStatusChange,
base::Unretained(this), callback, id);
subscription->requesting_origin = requesting_origin;
subscription->should_include_device_status = should_include_device_status;
// The RFH may be null if the request is for a worker.
if (render_frame_host) {
subscription->embedding_origin =
PermissionUtil::GetLastCommittedOriginAsURL(
render_frame_host->GetMainFrame());
subscription->render_frame_id = render_frame_host->GetRoutingID();
subscription->render_process_id = render_frame_host->GetProcess()->GetID();
} else {
subscription->embedding_origin = requesting_origin;
subscription->render_frame_id = -1;
subscription->render_process_id =
render_process_host ? render_process_host->GetID() : -1;
}
subscriptions_.AddWithID(std::move(subscription), id);
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (delegate) {
delegate->SetSubscriptions(&subscriptions_);
delegate->OnPermissionStatusChangeSubscriptionAdded(id);
}
return id;
}
void PermissionControllerImpl::UnsubscribeFromPermissionStatusChange(
SubscriptionId subscription_id) {
PermissionStatusSubscription* subscription =
subscriptions_.Lookup(subscription_id);
if (!subscription) {
return;
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
if (delegate) {
delegate->UnsubscribeFromPermissionStatusChange(subscription_id);
}
subscriptions_.Remove(subscription_id);
}
bool PermissionControllerImpl::IsSubscribedToPermissionChangeEvent(
blink::PermissionType permission,
RenderFrameHost* render_frame_host) {
PermissionServiceContext* permission_service_context =
PermissionServiceContext::GetForCurrentDocument(render_frame_host);
if (!permission_service_context) {
return false;
}
return permission_service_context->GetOnchangeEventListeners().find(
permission) !=
permission_service_context->GetOnchangeEventListeners().end();
}
std::optional<gfx::Rect>
PermissionControllerImpl::GetExclusionAreaBoundsInScreen(
WebContents* web_contents) const {
if (exclusion_area_bounds_for_tests_.has_value()) {
return exclusion_area_bounds_for_tests_;
}
PermissionControllerDelegate* delegate =
browser_context_->GetPermissionControllerDelegate();
return delegate ? delegate->GetExclusionAreaBoundsInScreen(web_contents)
: std::nullopt;
}
void PermissionControllerImpl::NotifyEventListener() {
if (onchange_listeners_callback_for_tests_) {
onchange_listeners_callback_for_tests_.Run();
}
}
} // namespace content