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/* -*- 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 "SessionStorage.h"
#include "SessionStorageCache.h"
#include "SessionStorageManager.h"
#include "mozilla/dom/StorageBinding.h"
#include "mozilla/Preferences.h"
#include "nsContentUtils.h"
#include "nsIPrincipal.h"
#include "nsPIDOMWindow.h"
#define DATASET \
IsSessionOnly() ? SessionStorageCache::eSessionSetType \
: SessionStorageCache::eDefaultSetType
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED(SessionStorage, Storage, mManager);
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SessionStorage)
NS_INTERFACE_MAP_END_INHERITING(Storage)
NS_IMPL_ADDREF_INHERITED(SessionStorage, Storage)
NS_IMPL_RELEASE_INHERITED(SessionStorage, Storage)
SessionStorage::SessionStorage(nsPIDOMWindowInner* aWindow,
nsIPrincipal* aPrincipal,
nsIPrincipal* aStoragePrincipal,
SessionStorageCache* aCache,
SessionStorageManager* aManager,
const nsAString& aDocumentURI, bool aIsPrivate)
: Storage(aWindow, aPrincipal, aStoragePrincipal),
mCache(aCache),
mManager(aManager),
mDocumentURI(aDocumentURI),
mIsPrivate(aIsPrivate) {
MOZ_ASSERT(aCache);
}
SessionStorage::~SessionStorage() = default;
int64_t SessionStorage::GetOriginQuotaUsage() const {
return mCache->GetOriginQuotaUsage(DATASET);
}
uint32_t SessionStorage::GetLength(nsIPrincipal& aSubjectPrincipal,
ErrorResult& aRv) {
if (!CanUseStorage(aSubjectPrincipal)) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return 0;
}
return mCache->Length(DATASET);
}
void SessionStorage::Key(uint32_t aIndex, nsAString& aResult,
nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv) {
if (!CanUseStorage(aSubjectPrincipal)) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return;
}
mCache->Key(DATASET, aIndex, aResult);
}
void SessionStorage::GetItem(const nsAString& aKey, nsAString& aResult,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aRv) {
if (!CanUseStorage(aSubjectPrincipal)) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return;
}
mCache->GetItem(DATASET, aKey, aResult);
}
void SessionStorage::GetSupportedNames(nsTArray<nsString>& aKeys) {
if (!CanUseStorage(*nsContentUtils::SubjectPrincipal())) {
// return just an empty array
aKeys.Clear();
return;
}
mCache->GetKeys(DATASET, aKeys);
}
void SessionStorage::SetItem(const nsAString& aKey, const nsAString& aValue,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aRv) {
if (!CanUseStorage(aSubjectPrincipal)) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return;
}
nsString oldValue;
nsresult rv = mCache->SetItem(DATASET, aKey, aValue, oldValue);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
if (rv == NS_SUCCESS_DOM_NO_OPERATION) {
return;
}
BroadcastChangeNotification(aKey, oldValue, aValue);
}
void SessionStorage::RemoveItem(const nsAString& aKey,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aRv) {
if (!CanUseStorage(aSubjectPrincipal)) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return;
}
nsString oldValue;
nsresult rv = mCache->RemoveItem(DATASET, aKey, oldValue);
MOZ_ASSERT(NS_SUCCEEDED(rv));
if (rv == NS_SUCCESS_DOM_NO_OPERATION) {
return;
}
BroadcastChangeNotification(aKey, oldValue, VoidString());
}
void SessionStorage::Clear(nsIPrincipal& aSubjectPrincipal, ErrorResult& aRv) {
uint32_t length = GetLength(aSubjectPrincipal, aRv);
if (!length) {
return;
}
mCache->Clear(DATASET);
BroadcastChangeNotification(VoidString(), VoidString(), VoidString());
}
void SessionStorage::BroadcastChangeNotification(const nsAString& aKey,
const nsAString& aOldValue,
const nsAString& aNewValue) {
NotifyChange(this, StoragePrincipal(), aKey, aOldValue, aNewValue,
u"sessionStorage", mDocumentURI, mIsPrivate, false);
}
bool SessionStorage::IsForkOf(const Storage* aOther) const {
MOZ_ASSERT(aOther);
if (aOther->Type() != eSessionStorage) {
return false;
}
return mCache == static_cast<const SessionStorage*>(aOther)->mCache;
}
} // namespace dom
} // namespace mozilla