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fune/dom/indexedDB/IDBFactory.cpp
Nicholas Nethercote ca40b738e4 Bug 1294620 - Use infallible XPIDL attribute getters more. r=erahm. 
This makes a lot of code more compact, and also avoids some redundant nsresult
checks.

The patch also removes a handful of redundant checks on infallible setters.

--HG--
extra : rebase_source : f82426e7584d0d5cddf7c2524356f0f318fbea7d
2016-08-12 15:19:29 +10:00

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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 "IDBFactory.h"
#include "BackgroundChildImpl.h"
#include "IDBRequest.h"
#include "IndexedDatabaseManager.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/Preferences.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/IDBFactoryBinding.h"
#include "mozilla/dom/TabChild.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/BackgroundUtils.h"
#include "mozilla/ipc/PBackground.h"
#include "mozilla/ipc/PBackgroundChild.h"
#include "mozIThirdPartyUtil.h"
#include "nsAboutProtocolUtils.h"
#include "nsContentUtils.h"
#include "nsGlobalWindow.h"
#include "nsIAboutModule.h"
#include "nsIIPCBackgroundChildCreateCallback.h"
#include "nsILoadContext.h"
#include "nsIPrincipal.h"
#include "nsIURI.h"
#include "nsIUUIDGenerator.h"
#include "nsIWebNavigation.h"
#include "nsSandboxFlags.h"
#include "nsServiceManagerUtils.h"
#include "ProfilerHelpers.h"
#include "ReportInternalError.h"
// Include this last to avoid path problems on Windows.
#include "ActorsChild.h"
#ifdef DEBUG
#include "nsContentUtils.h" // For assertions.
#endif
namespace mozilla {
namespace dom {
using namespace mozilla::dom::quota;
using namespace mozilla::ipc;
namespace {
const char kPrefIndexedDBEnabled[] = "dom.indexedDB.enabled";
} // namespace
class IDBFactory::BackgroundCreateCallback final
: public nsIIPCBackgroundChildCreateCallback
{
RefPtr<IDBFactory> mFactory;
LoggingInfo mLoggingInfo;
public:
explicit
BackgroundCreateCallback(IDBFactory* aFactory,
const LoggingInfo& aLoggingInfo)
: mFactory(aFactory)
, mLoggingInfo(aLoggingInfo)
{
MOZ_ASSERT(aFactory);
}
NS_DECL_ISUPPORTS
private:
~BackgroundCreateCallback()
{ }
NS_DECL_NSIIPCBACKGROUNDCHILDCREATECALLBACK
};
struct IDBFactory::PendingRequestInfo
{
RefPtr<IDBOpenDBRequest> mRequest;
FactoryRequestParams mParams;
PendingRequestInfo(IDBOpenDBRequest* aRequest,
const FactoryRequestParams& aParams)
: mRequest(aRequest), mParams(aParams)
{
MOZ_ASSERT(aRequest);
MOZ_ASSERT(aParams.type() != FactoryRequestParams::T__None);
}
};
IDBFactory::IDBFactory()
: mOwningObject(nullptr)
, mBackgroundActor(nullptr)
, mInnerWindowID(0)
, mBackgroundActorFailed(false)
, mPrivateBrowsingMode(false)
{
#ifdef DEBUG
mOwningThread = PR_GetCurrentThread();
#endif
AssertIsOnOwningThread();
}
IDBFactory::~IDBFactory()
{
MOZ_ASSERT_IF(mBackgroundActorFailed, !mBackgroundActor);
mOwningObject = nullptr;
mozilla::DropJSObjects(this);
if (mBackgroundActor) {
mBackgroundActor->SendDeleteMeInternal();
MOZ_ASSERT(!mBackgroundActor, "SendDeleteMeInternal should have cleared!");
}
}
// static
nsresult
IDBFactory::CreateForWindow(nsPIDOMWindowInner* aWindow,
IDBFactory** aFactory)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aWindow);
MOZ_ASSERT(aFactory);
nsCOMPtr<nsIPrincipal> principal;
nsresult rv = AllowedForWindowInternal(aWindow, getter_AddRefs(principal));
if (!(NS_SUCCEEDED(rv) && nsContentUtils::IsSystemPrincipal(principal)) &&
NS_WARN_IF(!Preferences::GetBool(kPrefIndexedDBEnabled, false))) {
*aFactory = nullptr;
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
if (rv == NS_ERROR_DOM_NOT_SUPPORTED_ERR) {
NS_WARNING("IndexedDB is not permitted in a third-party window.");
*aFactory = nullptr;
return NS_OK;
}
if (NS_WARN_IF(NS_FAILED(rv))) {
if (rv == NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR) {
IDB_REPORT_INTERNAL_ERR();
}
return rv;
}
MOZ_ASSERT(principal);
nsAutoPtr<PrincipalInfo> principalInfo(new PrincipalInfo());
rv = PrincipalToPrincipalInfo(principal, principalInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
MOZ_ASSERT(principalInfo->type() == PrincipalInfo::TContentPrincipalInfo ||
principalInfo->type() == PrincipalInfo::TSystemPrincipalInfo);
nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(webNav);
RefPtr<IDBFactory> factory = new IDBFactory();
factory->mPrincipalInfo = Move(principalInfo);
factory->mWindow = aWindow;
factory->mTabChild = TabChild::GetFrom(aWindow);
factory->mInnerWindowID = aWindow->WindowID();
factory->mPrivateBrowsingMode =
loadContext && loadContext->UsePrivateBrowsing();
factory.forget(aFactory);
return NS_OK;
}
// static
nsresult
IDBFactory::CreateForMainThreadJS(JSContext* aCx,
JS::Handle<JSObject*> aOwningObject,
IDBFactory** aFactory)
{
MOZ_ASSERT(NS_IsMainThread());
nsAutoPtr<PrincipalInfo> principalInfo(new PrincipalInfo());
nsIPrincipal* principal = nsContentUtils::ObjectPrincipal(aOwningObject);
MOZ_ASSERT(principal);
bool isSystem;
if (!AllowedForPrincipal(principal, &isSystem)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsresult rv = PrincipalToPrincipalInfo(principal, principalInfo);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = CreateForMainThreadJSInternal(aCx, aOwningObject, principalInfo, aFactory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(!principalInfo);
return NS_OK;
}
// static
nsresult
IDBFactory::CreateForWorker(JSContext* aCx,
JS::Handle<JSObject*> aOwningObject,
const PrincipalInfo& aPrincipalInfo,
uint64_t aInnerWindowID,
IDBFactory** aFactory)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aPrincipalInfo.type() != PrincipalInfo::T__None);
nsAutoPtr<PrincipalInfo> principalInfo(new PrincipalInfo(aPrincipalInfo));
nsresult rv =
CreateForJSInternal(aCx,
aOwningObject,
principalInfo,
aInnerWindowID,
aFactory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(!principalInfo);
return NS_OK;
}
// static
nsresult
IDBFactory::CreateForMainThreadJSInternal(
JSContext* aCx,
JS::Handle<JSObject*> aOwningObject,
nsAutoPtr<PrincipalInfo>& aPrincipalInfo,
IDBFactory** aFactory)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aPrincipalInfo);
if (aPrincipalInfo->type() != PrincipalInfo::TSystemPrincipalInfo &&
NS_WARN_IF(!Preferences::GetBool(kPrefIndexedDBEnabled, false))) {
*aFactory = nullptr;
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
IndexedDatabaseManager* mgr = IndexedDatabaseManager::GetOrCreate();
if (NS_WARN_IF(!mgr)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsresult rv =
CreateForJSInternal(aCx,
aOwningObject,
aPrincipalInfo,
/* aInnerWindowID */ 0,
aFactory);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
// static
nsresult
IDBFactory::CreateForJSInternal(JSContext* aCx,
JS::Handle<JSObject*> aOwningObject,
nsAutoPtr<PrincipalInfo>& aPrincipalInfo,
uint64_t aInnerWindowID,
IDBFactory** aFactory)
{
MOZ_ASSERT(aCx);
MOZ_ASSERT(aOwningObject);
MOZ_ASSERT(aPrincipalInfo);
MOZ_ASSERT(aPrincipalInfo->type() != PrincipalInfo::T__None);
MOZ_ASSERT(aFactory);
MOZ_ASSERT(JS_GetGlobalForObject(aCx, aOwningObject) == aOwningObject,
"Not a global object!");
if (aPrincipalInfo->type() != PrincipalInfo::TContentPrincipalInfo &&
aPrincipalInfo->type() != PrincipalInfo::TSystemPrincipalInfo) {
NS_WARNING("IndexedDB not allowed for this principal!");
aPrincipalInfo = nullptr;
*aFactory = nullptr;
return NS_OK;
}
RefPtr<IDBFactory> factory = new IDBFactory();
factory->mPrincipalInfo = aPrincipalInfo.forget();
factory->mOwningObject = aOwningObject;
mozilla::HoldJSObjects(factory.get());
factory->mInnerWindowID = aInnerWindowID;
factory.forget(aFactory);
return NS_OK;
}
// static
bool
IDBFactory::AllowedForWindow(nsPIDOMWindowInner* aWindow)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aWindow);
nsCOMPtr<nsIPrincipal> principal;
nsresult rv = AllowedForWindowInternal(aWindow, getter_AddRefs(principal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
return true;
}
// static
nsresult
IDBFactory::AllowedForWindowInternal(nsPIDOMWindowInner* aWindow,
nsIPrincipal** aPrincipal)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aWindow);
if (NS_WARN_IF(!IndexedDatabaseManager::GetOrCreate())) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsContentUtils::StorageAccess access =
nsContentUtils::StorageAllowedForWindow(aWindow);
// the factory callsite records whether the browser is in private browsing.
// and thus we don't have to respect that setting here. IndexedDB has no
// concept of session-local storage, and thus ignores it.
if (access == nsContentUtils::StorageAccess::eDeny) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIScriptObjectPrincipal> sop = do_QueryInterface(aWindow);
MOZ_ASSERT(sop);
nsCOMPtr<nsIPrincipal> principal = sop->GetPrincipal();
if (NS_WARN_IF(!principal)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (nsContentUtils::IsSystemPrincipal(principal)) {
principal.forget(aPrincipal);
return NS_OK;
}
// About URIs shouldn't be able to access IndexedDB unless they have the
// nsIAboutModule::ENABLE_INDEXED_DB flag set on them.
nsCOMPtr<nsIURI> uri;
MOZ_ALWAYS_SUCCEEDS(principal->GetURI(getter_AddRefs(uri)));
MOZ_ASSERT(uri);
bool isAbout = false;
MOZ_ALWAYS_SUCCEEDS(uri->SchemeIs("about", &isAbout));
if (isAbout) {
nsCOMPtr<nsIAboutModule> module;
if (NS_SUCCEEDED(NS_GetAboutModule(uri, getter_AddRefs(module)))) {
uint32_t flags;
if (NS_SUCCEEDED(module->GetURIFlags(uri, &flags))) {
if (!(flags & nsIAboutModule::ENABLE_INDEXED_DB)) {
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
} else {
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
} else {
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
}
principal.forget(aPrincipal);
return NS_OK;
}
// static
bool
IDBFactory::AllowedForPrincipal(nsIPrincipal* aPrincipal,
bool* aIsSystemPrincipal)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aPrincipal);
if (NS_WARN_IF(!IndexedDatabaseManager::GetOrCreate())) {
return false;
}
if (nsContentUtils::IsSystemPrincipal(aPrincipal)) {
if (aIsSystemPrincipal) {
*aIsSystemPrincipal = true;
}
return true;
} else if (aIsSystemPrincipal) {
*aIsSystemPrincipal = false;
}
if (aPrincipal->GetIsNullPrincipal()) {
return false;
}
return true;
}
#ifdef DEBUG
void
IDBFactory::AssertIsOnOwningThread() const
{
MOZ_ASSERT(mOwningThread);
MOZ_ASSERT(PR_GetCurrentThread() == mOwningThread);
}
PRThread*
IDBFactory::OwningThread() const
{
MOZ_ASSERT(mOwningThread);
return mOwningThread;
}
#endif // DEBUG
bool
IDBFactory::IsChrome() const
{
AssertIsOnOwningThread();
MOZ_ASSERT(mPrincipalInfo);
return mPrincipalInfo->type() == PrincipalInfo::TSystemPrincipalInfo;
}
void
IDBFactory::IncrementParentLoggingRequestSerialNumber()
{
AssertIsOnOwningThread();
MOZ_ASSERT(mBackgroundActor);
mBackgroundActor->SendIncrementLoggingRequestSerialNumber();
}
already_AddRefed<IDBOpenDBRequest>
IDBFactory::Open(JSContext* aCx,
const nsAString& aName,
uint64_t aVersion,
ErrorResult& aRv)
{
return OpenInternal(aCx,
/* aPrincipal */ nullptr,
aName,
Optional<uint64_t>(aVersion),
Optional<StorageType>(),
/* aDeleting */ false,
aRv);
}
already_AddRefed<IDBOpenDBRequest>
IDBFactory::Open(JSContext* aCx,
const nsAString& aName,
const IDBOpenDBOptions& aOptions,
ErrorResult& aRv)
{
return OpenInternal(aCx,
/* aPrincipal */ nullptr,
aName,
aOptions.mVersion,
aOptions.mStorage,
/* aDeleting */ false,
aRv);
}
already_AddRefed<IDBOpenDBRequest>
IDBFactory::DeleteDatabase(JSContext* aCx,
const nsAString& aName,
const IDBOpenDBOptions& aOptions,
ErrorResult& aRv)
{
return OpenInternal(aCx,
/* aPrincipal */ nullptr,
aName,
Optional<uint64_t>(),
aOptions.mStorage,
/* aDeleting */ true,
aRv);
}
int16_t
IDBFactory::Cmp(JSContext* aCx, JS::Handle<JS::Value> aFirst,
JS::Handle<JS::Value> aSecond, ErrorResult& aRv)
{
Key first, second;
nsresult rv = first.SetFromJSVal(aCx, aFirst);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return 0;
}
rv = second.SetFromJSVal(aCx, aSecond);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return 0;
}
if (first.IsUnset() || second.IsUnset()) {
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_DATA_ERR);
return 0;
}
return Key::CompareKeys(first, second);
}
already_AddRefed<IDBOpenDBRequest>
IDBFactory::OpenForPrincipal(JSContext* aCx,
nsIPrincipal* aPrincipal,
const nsAString& aName,
uint64_t aVersion,
ErrorResult& aRv)
{
MOZ_ASSERT(aPrincipal);
if (!NS_IsMainThread()) {
MOZ_CRASH("Figure out security checks for workers!");
}
MOZ_ASSERT(nsContentUtils::IsCallerChrome());
return OpenInternal(aCx,
aPrincipal,
aName,
Optional<uint64_t>(aVersion),
Optional<StorageType>(),
/* aDeleting */ false,
aRv);
}
already_AddRefed<IDBOpenDBRequest>
IDBFactory::OpenForPrincipal(JSContext* aCx,
nsIPrincipal* aPrincipal,
const nsAString& aName,
const IDBOpenDBOptions& aOptions,
ErrorResult& aRv)
{
MOZ_ASSERT(aPrincipal);
if (!NS_IsMainThread()) {
MOZ_CRASH("Figure out security checks for workers!");
}
MOZ_ASSERT(nsContentUtils::IsCallerChrome());
return OpenInternal(aCx,
aPrincipal,
aName,
aOptions.mVersion,
aOptions.mStorage,
/* aDeleting */ false,
aRv);
}
already_AddRefed<IDBOpenDBRequest>
IDBFactory::DeleteForPrincipal(JSContext* aCx,
nsIPrincipal* aPrincipal,
const nsAString& aName,
const IDBOpenDBOptions& aOptions,
ErrorResult& aRv)
{
MOZ_ASSERT(aPrincipal);
if (!NS_IsMainThread()) {
MOZ_CRASH("Figure out security checks for workers!");
}
MOZ_ASSERT(nsContentUtils::IsCallerChrome());
return OpenInternal(aCx,
aPrincipal,
aName,
Optional<uint64_t>(),
aOptions.mStorage,
/* aDeleting */ true,
aRv);
}
already_AddRefed<IDBOpenDBRequest>
IDBFactory::OpenInternal(JSContext* aCx,
nsIPrincipal* aPrincipal,
const nsAString& aName,
const Optional<uint64_t>& aVersion,
const Optional<StorageType>& aStorageType,
bool aDeleting,
ErrorResult& aRv)
{
MOZ_ASSERT(mWindow || mOwningObject);
MOZ_ASSERT_IF(!mWindow, !mPrivateBrowsingMode);
CommonFactoryRequestParams commonParams;
commonParams.privateBrowsingMode() = mPrivateBrowsingMode;
PrincipalInfo& principalInfo = commonParams.principalInfo();
if (aPrincipal) {
if (!NS_IsMainThread()) {
MOZ_CRASH("Figure out security checks for workers!");
}
MOZ_ASSERT(nsContentUtils::IsCallerChrome());
if (NS_WARN_IF(NS_FAILED(PrincipalToPrincipalInfo(aPrincipal,
&principalInfo)))) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
if (principalInfo.type() != PrincipalInfo::TContentPrincipalInfo &&
principalInfo.type() != PrincipalInfo::TSystemPrincipalInfo) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
} else {
principalInfo = *mPrincipalInfo;
}
uint64_t version = 0;
if (!aDeleting && aVersion.WasPassed()) {
if (aVersion.Value() < 1) {
aRv.ThrowTypeError<MSG_INVALID_VERSION>();
return nullptr;
}
version = aVersion.Value();
}
// Nothing can be done here if we have previously failed to create a
// background actor.
if (mBackgroundActorFailed) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
PersistenceType persistenceType;
if (principalInfo.type() == PrincipalInfo::TSystemPrincipalInfo) {
// Chrome privilege always gets persistent storage.
persistenceType = PERSISTENCE_TYPE_PERSISTENT;
} else {
persistenceType = PersistenceTypeFromStorage(aStorageType);
}
DatabaseMetadata& metadata = commonParams.metadata();
metadata.name() = aName;
metadata.persistenceType() = persistenceType;
FactoryRequestParams params;
if (aDeleting) {
metadata.version() = 0;
params = DeleteDatabaseRequestParams(commonParams);
} else {
metadata.version() = version;
params = OpenDatabaseRequestParams(commonParams);
}
if (!mBackgroundActor && mPendingRequests.IsEmpty()) {
BackgroundChildImpl::ThreadLocal* threadLocal =
BackgroundChildImpl::GetThreadLocalForCurrentThread();
nsAutoPtr<ThreadLocal> newIDBThreadLocal;
ThreadLocal* idbThreadLocal;
if (threadLocal && threadLocal->mIndexedDBThreadLocal) {
idbThreadLocal = threadLocal->mIndexedDBThreadLocal;
} else {
nsCOMPtr<nsIUUIDGenerator> uuidGen =
do_GetService("@mozilla.org/uuid-generator;1");
MOZ_ASSERT(uuidGen);
nsID id;
MOZ_ALWAYS_SUCCEEDS(uuidGen->GenerateUUIDInPlace(&id));
newIDBThreadLocal = idbThreadLocal = new ThreadLocal(id);
}
if (PBackgroundChild* actor = BackgroundChild::GetForCurrentThread()) {
BackgroundActorCreated(actor, idbThreadLocal->GetLoggingInfo());
} else {
// We need to start the sequence to create a background actor for this
// thread.
RefPtr<BackgroundCreateCallback> cb =
new BackgroundCreateCallback(this, idbThreadLocal->GetLoggingInfo());
if (NS_WARN_IF(!BackgroundChild::GetOrCreateForCurrentThread(cb))) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
}
if (newIDBThreadLocal) {
if (!threadLocal) {
threadLocal = BackgroundChildImpl::GetThreadLocalForCurrentThread();
}
MOZ_ASSERT(threadLocal);
MOZ_ASSERT(!threadLocal->mIndexedDBThreadLocal);
threadLocal->mIndexedDBThreadLocal = newIDBThreadLocal.forget();
}
}
RefPtr<IDBOpenDBRequest> request;
if (mWindow) {
JS::Rooted<JSObject*> scriptOwner(aCx,
nsGlobalWindow::Cast(mWindow.get())->FastGetGlobalJSObject());
MOZ_ASSERT(scriptOwner);
request = IDBOpenDBRequest::CreateForWindow(aCx, this, mWindow, scriptOwner);
} else {
JS::Rooted<JSObject*> scriptOwner(aCx, mOwningObject);
request = IDBOpenDBRequest::CreateForJS(aCx, this, scriptOwner);
if (!request) {
MOZ_ASSERT(!NS_IsMainThread());
aRv.ThrowUncatchableException();
return nullptr;
}
}
MOZ_ASSERT(request);
if (aDeleting) {
IDB_LOG_MARK("IndexedDB %s: Child Request[%llu]: "
"indexedDB.deleteDatabase(\"%s\")",
"IndexedDB %s: C R[%llu]: IDBFactory.deleteDatabase()",
IDB_LOG_ID_STRING(),
request->LoggingSerialNumber(),
NS_ConvertUTF16toUTF8(aName).get());
} else {
IDB_LOG_MARK("IndexedDB %s: Child Request[%llu]: "
"indexedDB.open(\"%s\", %s)",
"IndexedDB %s: C R[%llu]: IDBFactory.open()",
IDB_LOG_ID_STRING(),
request->LoggingSerialNumber(),
NS_ConvertUTF16toUTF8(aName).get(),
IDB_LOG_STRINGIFY(aVersion));
}
// If we already have a background actor then we can start this request now.
if (mBackgroundActor) {
nsresult rv = InitiateRequest(request, params);
if (NS_WARN_IF(NS_FAILED(rv))) {
IDB_REPORT_INTERNAL_ERR();
aRv.Throw(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return nullptr;
}
} else {
mPendingRequests.AppendElement(new PendingRequestInfo(request, params));
}
return request.forget();
}
nsresult
IDBFactory::BackgroundActorCreated(PBackgroundChild* aBackgroundActor,
const LoggingInfo& aLoggingInfo)
{
MOZ_ASSERT(aBackgroundActor);
MOZ_ASSERT(!mBackgroundActor);
MOZ_ASSERT(!mBackgroundActorFailed);
{
BackgroundFactoryChild* actor = new BackgroundFactoryChild(this);
mBackgroundActor =
static_cast<BackgroundFactoryChild*>(
aBackgroundActor->SendPBackgroundIDBFactoryConstructor(actor,
aLoggingInfo));
}
if (NS_WARN_IF(!mBackgroundActor)) {
BackgroundActorFailed();
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsresult rv = NS_OK;
for (uint32_t index = 0, count = mPendingRequests.Length();
index < count;
index++) {
nsAutoPtr<PendingRequestInfo> info(mPendingRequests[index].forget());
nsresult rv2 = InitiateRequest(info->mRequest, info->mParams);
// Warn for every failure, but just return the first failure if there are
// multiple failures.
if (NS_WARN_IF(NS_FAILED(rv2)) && NS_SUCCEEDED(rv)) {
rv = rv2;
}
}
mPendingRequests.Clear();
return rv;
}
void
IDBFactory::BackgroundActorFailed()
{
MOZ_ASSERT(!mPendingRequests.IsEmpty());
MOZ_ASSERT(!mBackgroundActor);
MOZ_ASSERT(!mBackgroundActorFailed);
mBackgroundActorFailed = true;
for (uint32_t index = 0, count = mPendingRequests.Length();
index < count;
index++) {
nsAutoPtr<PendingRequestInfo> info(mPendingRequests[index].forget());
info->mRequest->
DispatchNonTransactionError(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
mPendingRequests.Clear();
}
nsresult
IDBFactory::InitiateRequest(IDBOpenDBRequest* aRequest,
const FactoryRequestParams& aParams)
{
MOZ_ASSERT(aRequest);
MOZ_ASSERT(mBackgroundActor);
MOZ_ASSERT(!mBackgroundActorFailed);
bool deleting;
uint64_t requestedVersion;
switch (aParams.type()) {
case FactoryRequestParams::TDeleteDatabaseRequestParams: {
const DatabaseMetadata& metadata =
aParams.get_DeleteDatabaseRequestParams().commonParams().metadata();
deleting = true;
requestedVersion = metadata.version();
break;
}
case FactoryRequestParams::TOpenDatabaseRequestParams: {
const DatabaseMetadata& metadata =
aParams.get_OpenDatabaseRequestParams().commonParams().metadata();
deleting = false;
requestedVersion = metadata.version();
break;
}
default:
MOZ_CRASH("Should never get here!");
}
auto actor =
new BackgroundFactoryRequestChild(this,
aRequest,
deleting,
requestedVersion);
if (!mBackgroundActor->SendPBackgroundIDBFactoryRequestConstructor(actor,
aParams)) {
aRequest->DispatchNonTransactionError(NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
return NS_OK;
}
NS_IMPL_CYCLE_COLLECTING_ADDREF(IDBFactory)
NS_IMPL_CYCLE_COLLECTING_RELEASE(IDBFactory)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IDBFactory)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_CLASS(IDBFactory)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IDBFactory)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IDBFactory)
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
tmp->mOwningObject = nullptr;
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(IDBFactory)
NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mOwningObject)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
JSObject*
IDBFactory::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return IDBFactoryBinding::Wrap(aCx, this, aGivenProto);
}
NS_IMPL_ISUPPORTS(IDBFactory::BackgroundCreateCallback,
nsIIPCBackgroundChildCreateCallback)
void
IDBFactory::BackgroundCreateCallback::ActorCreated(PBackgroundChild* aActor)
{
MOZ_ASSERT(aActor);
MOZ_ASSERT(mFactory);
RefPtr<IDBFactory> factory;
mFactory.swap(factory);
factory->BackgroundActorCreated(aActor, mLoggingInfo);
}
void
IDBFactory::BackgroundCreateCallback::ActorFailed()
{
MOZ_ASSERT(mFactory);
RefPtr<IDBFactory> factory;
mFactory.swap(factory);
factory->BackgroundActorFailed();
}
} // namespace dom
} // namespace mozilla
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