dom/permission/StorageAccessPermissionStatus.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/StorageAccessPermissionStatus.h"
   8
   9 #include "mozilla/AntiTrackingUtils.h"
  10 #include "mozilla/dom/WindowGlobalChild.h"
  11 #include "mozilla/dom/BrowsingContext.h"
  12 #include "mozilla/dom/FeaturePolicyUtils.h"
  13 #include "mozilla/dom/PermissionStatus.h"
  14 #include "mozilla/dom/PermissionStatusBinding.h"
  15 #include "nsGlobalWindowInner.h"
  16 #include "nsIPermissionManager.h"
  17
  18 namespace mozilla::dom {
  19
  20 StorageAccessPermissionStatus::StorageAccessPermissionStatus(
  21     nsPIDOMWindowInner* aWindow)
  22     : PermissionStatus(aWindow, PermissionName::Storage_access) {}
  23
  24 RefPtr<PermissionStatus::SimplePromise>
  25 StorageAccessPermissionStatus::UpdateState() {
  26   nsGlobalWindowInner* window = GetOwnerWindow();
  27   if (NS_WARN_IF(!window)) {
  28     return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
  29   }
  30
  31   WindowGlobalChild* wgc = window->GetWindowGlobalChild();
  32   if (NS_WARN_IF(!wgc)) {
  33     return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
  34   }
  35
  36   // Perform a Permission Policy Request
  37   if (!FeaturePolicyUtils::IsFeatureAllowed(window->GetExtantDoc(),
  38                                             u"storage-access"_ns)) {
  39     mState = PermissionState::Prompt;
  40     return SimplePromise::CreateAndResolve(NS_OK, __func__);
  41   }
  42
  43   RefPtr<StorageAccessPermissionStatus> self(this);
  44   return wgc->SendGetStorageAccessPermission()->Then(
  45       GetMainThreadSerialEventTarget(), __func__,
  46       [self](uint32_t aAction) {
  47         if (aAction == nsIPermissionManager::ALLOW_ACTION) {
  48           self->mState = PermissionState::Granted;
  49         } else {
  50           // We never reveal PermissionState::Denied here
  51           self->mState = PermissionState::Prompt;
  52         }
  53         return SimplePromise::CreateAndResolve(NS_OK, __func__);
  54       },
  55       [](mozilla::ipc::ResponseRejectReason aError) {
  56         return SimplePromise::CreateAndResolve(NS_ERROR_FAILURE, __func__);
  57       });
  58 }
  59
  60 bool StorageAccessPermissionStatus::MaybeUpdatedBy(
  61     nsIPermission* aPermission) const {
  62   return false;
  63 }
  64
  65 bool StorageAccessPermissionStatus::MaybeUpdatedByNotifyOnly(
  66     nsPIDOMWindowInner* aInnerWindow) const {
  67   nsPIDOMWindowInner* owner = GetOwnerWindow();
  68   NS_ENSURE_TRUE(owner, false);
  69   NS_ENSURE_TRUE(aInnerWindow, false);
  70   return owner->WindowID() == aInnerWindow->WindowID();
  71 }
  72
  73 }  // namespace mozilla::dom