Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 216 insertions, 0 deletions

diff --git a/dom/storage/LocalStorage.cpp b/dom/storage/LocalStorage.cpp
new file mode 100644
index 0000000000..ec75566242
--- /dev/null
+++ b/dom/storage/LocalStorage.cpp
@@ -0,0 +1,216 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "LocalStorage.h"
+#include "LocalStorageCache.h"
+#include "LocalStorageManager.h"
+#include "StorageUtils.h"
+
+#include "nsIPrincipal.h"
+
+#include "mozilla/dom/PermissionMessageUtils.h"
+#include "mozilla/dom/StorageBinding.h"
+#include "mozilla/dom/StorageEvent.h"
+#include "mozilla/dom/StorageEventBinding.h"
+#include "mozilla/ipc/BackgroundChild.h"
+#include "mozilla/ipc/PBackgroundChild.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/EnumSet.h"
+#include "nsThreadUtils.h"
+#include "nsContentUtils.h"
+#include "nsServiceManagerUtils.h"
+
+namespace mozilla {
+
+using namespace ipc;
+
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(LocalStorage)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(LocalStorage, Storage)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mManager)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK_WEAK_REFERENCE
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(LocalStorage, Storage)
+  CycleCollectionNoteChild(
+      cb, NS_ISUPPORTS_CAST(nsIDOMStorageManager*, tmp->mManager.get()),
+      "mManager");
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(LocalStorage)
+  NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+NS_INTERFACE_MAP_END_INHERITING(Storage)
+
+NS_IMPL_ADDREF_INHERITED(LocalStorage, Storage)
+NS_IMPL_RELEASE_INHERITED(LocalStorage, Storage)
+
+LocalStorage::LocalStorage(nsPIDOMWindowInner* aWindow,
+                           LocalStorageManager* aManager,
+                           LocalStorageCache* aCache,
+                           const nsAString& aDocumentURI,
+                           nsIPrincipal* aPrincipal,
+                           nsIPrincipal* aStoragePrincipal, bool aIsPrivate)
+    : Storage(aWindow, aPrincipal, aStoragePrincipal),
+      mManager(aManager),
+      mCache(aCache),
+      mDocumentURI(aDocumentURI),
+      mIsPrivate(aIsPrivate) {
+  mCache->Preload();
+}
+
+LocalStorage::~LocalStorage() = default;
+
+int64_t LocalStorage::GetOriginQuotaUsage() const {
+  return mCache->GetOriginQuotaUsage(this);
+}
+
+uint32_t LocalStorage::GetLength(nsIPrincipal& aSubjectPrincipal,
+                                 ErrorResult& aRv) {
+  if (!CanUseStorage(aSubjectPrincipal)) {
+    aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+    return 0;
+  }
+
+  uint32_t length;
+  aRv = mCache->GetLength(this, &length);
+  return length;
+}
+
+void LocalStorage::Key(uint32_t aIndex, nsAString& aResult,
+                       nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv) {
+  if (!CanUseStorage(aSubjectPrincipal)) {
+    aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+    return;
+  }
+
+  aRv = mCache->GetKey(this, aIndex, aResult);
+}
+
+void LocalStorage::GetItem(const nsAString& aKey, nsAString& aResult,
+                           nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv) {
+  if (!CanUseStorage(aSubjectPrincipal)) {
+    aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+    return;
+  }
+
+  aRv = mCache->GetItem(this, aKey, aResult);
+}
+
+void LocalStorage::SetItem(const nsAString& aKey, const nsAString& aData,
+                           nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv) {
+  if (!CanUseStorage(aSubjectPrincipal)) {
+    aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+    return;
+  }
+
+  nsString data;
+  bool ok = data.Assign(aData, fallible);
+  if (!ok) {
+    aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
+    return;
+  }
+
+  nsString old;
+  aRv = mCache->SetItem(this, aKey, data, old);
+  if (aRv.Failed()) {
+    return;
+  }
+
+  if (!aRv.ErrorCodeIs(NS_SUCCESS_DOM_NO_OPERATION)) {
+    OnChange(aKey, old, aData);
+  }
+}
+
+void LocalStorage::RemoveItem(const nsAString& aKey,
+                              nsIPrincipal& aSubjectPrincipal,
+                              ErrorResult& aRv) {
+  if (!CanUseStorage(aSubjectPrincipal)) {
+    aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+    return;
+  }
+
+  nsAutoString old;
+  aRv = mCache->RemoveItem(this, aKey, old);
+  if (aRv.Failed()) {
+    return;
+  }
+
+  if (!aRv.ErrorCodeIs(NS_SUCCESS_DOM_NO_OPERATION)) {
+    OnChange(aKey, old, VoidString());
+  }
+}
+
+void LocalStorage::Clear(nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv) {
+  if (!CanUseStorage(aSubjectPrincipal)) {
+    aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+    return;
+  }
+
+  aRv = mCache->Clear(this);
+  if (NS_WARN_IF(aRv.Failed())) {
+    return;
+  }
+
+  if (!aRv.ErrorCodeIs(NS_SUCCESS_DOM_NO_OPERATION)) {
+    OnChange(VoidString(), VoidString(), VoidString());
+  }
+}
+
+void LocalStorage::OnChange(const nsAString& aKey, const nsAString& aOldValue,
+                            const nsAString& aNewValue) {
+  NotifyChange(/* aStorage */ this, StoragePrincipal(), aKey, aOldValue,
+               aNewValue, /* aStorageType */ u"localStorage", mDocumentURI,
+               mIsPrivate, /* aImmediateDispatch */ false);
+}
+
+void LocalStorage::ApplyEvent(StorageEvent* aStorageEvent) {
+  MOZ_ASSERT(aStorageEvent);
+
+  nsAutoString key;
+  nsAutoString old;
+  nsAutoString value;
+
+  aStorageEvent->GetKey(key);
+  aStorageEvent->GetNewValue(value);
+
+  // No key means clearing the full storage.
+  if (key.IsVoid()) {
+    MOZ_ASSERT(value.IsVoid());
+    mCache->Clear(this, LocalStorageCache::E10sPropagated);
+    return;
+  }
+
+  // No new value means removing the key.
+  if (value.IsVoid()) {
+    mCache->RemoveItem(this, key, old, LocalStorageCache::E10sPropagated);
+    return;
+  }
+
+  // Otherwise, we set the new value.
+  mCache->SetItem(this, key, value, old, LocalStorageCache::E10sPropagated);
+}
+
+void LocalStorage::GetSupportedNames(nsTArray<nsString>& aKeys) {
+  if (!CanUseStorage(*nsContentUtils::SubjectPrincipal())) {
+    // return just an empty array
+    aKeys.Clear();
+    return;
+  }
+
+  mCache->GetKeys(this, aKeys);
+}
+
+bool LocalStorage::IsForkOf(const Storage* aOther) const {
+  MOZ_ASSERT(aOther);
+  if (aOther->Type() != eLocalStorage) {
+    return false;
+  }
+
+  return mCache == static_cast<const LocalStorage*>(aOther)->mCache;
+}
+
+}  // namespace dom
+}  // namespace mozilla