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/*
* Copyright (C) 2015, 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "IDBOpenDBRequest.h"
#if ENABLE(INDEXED_DATABASE)
#include "DOMException.h"
#include "EventNames.h"
#include "IDBConnectionProxy.h"
#include "IDBConnectionToServer.h"
#include "IDBDatabase.h"
#include "IDBError.h"
#include "IDBRequestCompletionEvent.h"
#include "IDBResultData.h"
#include "IDBTransaction.h"
#include "IDBVersionChangeEvent.h"
#include "Logging.h"
#include "ScriptExecutionContext.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(IDBOpenDBRequest);
Ref<IDBOpenDBRequest> IDBOpenDBRequest::createDeleteRequest(ScriptExecutionContext& context, IDBClient::IDBConnectionProxy& connectionProxy, const IDBDatabaseIdentifier& databaseIdentifier)
{
return adoptRef(*new IDBOpenDBRequest(context, connectionProxy, databaseIdentifier, 0, IndexedDB::RequestType::Delete));
}
Ref<IDBOpenDBRequest> IDBOpenDBRequest::createOpenRequest(ScriptExecutionContext& context, IDBClient::IDBConnectionProxy& connectionProxy, const IDBDatabaseIdentifier& databaseIdentifier, uint64_t version)
{
return adoptRef(*new IDBOpenDBRequest(context, connectionProxy, databaseIdentifier, version, IndexedDB::RequestType::Open));
}
IDBOpenDBRequest::IDBOpenDBRequest(ScriptExecutionContext& context, IDBClient::IDBConnectionProxy& connectionProxy, const IDBDatabaseIdentifier& databaseIdentifier, uint64_t version, IndexedDB::RequestType requestType)
: IDBRequest(context, connectionProxy)
, m_databaseIdentifier(databaseIdentifier)
, m_version(version)
{
m_requestType = requestType;
}
IDBOpenDBRequest::~IDBOpenDBRequest()
{
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
}
void IDBOpenDBRequest::onError(const IDBResultData& data)
{
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
m_domError = data.error().toDOMException();
enqueueEvent(IDBRequestCompletionEvent::create(eventNames().errorEvent, Event::CanBubble::Yes, Event::IsCancelable::Yes, *this));
}
void IDBOpenDBRequest::versionChangeTransactionDidFinish()
{
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
// 3.3.7 "versionchange" transaction steps
// When the transaction is finished, after firing complete/abort on the transaction, immediately set request's transaction property to null.
m_shouldExposeTransactionToDOM = false;
}
void IDBOpenDBRequest::fireSuccessAfterVersionChangeCommit()
{
LOG(IndexedDB, "IDBOpenDBRequest::fireSuccessAfterVersionChangeCommit() - %s", resourceIdentifier().loggingString().utf8().data());
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
ASSERT(hasPendingActivity());
m_transaction->addRequest(*this);
auto event = IDBRequestCompletionEvent::create(eventNames().successEvent, Event::CanBubble::No, Event::IsCancelable::No, *this);
m_openDatabaseSuccessEvent = &event.get();
enqueueEvent(WTFMove(event));
}
void IDBOpenDBRequest::fireErrorAfterVersionChangeCompletion()
{
LOG(IndexedDB, "IDBOpenDBRequest::fireErrorAfterVersionChangeCompletion() - %s", resourceIdentifier().loggingString().utf8().data());
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
ASSERT(hasPendingActivity());
IDBError idbError(AbortError);
m_domError = DOMException::create(AbortError);
setResultToUndefined();
m_transaction->addRequest(*this);
enqueueEvent(IDBRequestCompletionEvent::create(eventNames().errorEvent, Event::CanBubble::Yes, Event::IsCancelable::Yes, *this));
}
void IDBOpenDBRequest::cancelForStop()
{
connectionProxy().openDBRequestCancelled({ connectionProxy(), *this });
if (m_transaction && m_transaction->isVersionChange())
m_transaction->removeRequest(*this);
}
void IDBOpenDBRequest::dispatchEvent(Event& event)
{
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
auto protectedThis = makeRef(*this);
IDBRequest::dispatchEvent(event);
if (m_transaction && m_transaction->isVersionChange() && (event.type() == eventNames().errorEvent || event.type() == eventNames().successEvent))
m_transaction->database().connectionProxy().didFinishHandlingVersionChangeTransaction(m_transaction->database().databaseConnectionIdentifier(), *m_transaction);
}
void IDBOpenDBRequest::onSuccess(const IDBResultData& resultData)
{
LOG(IndexedDB, "IDBOpenDBRequest::onSuccess()");
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
setResult(IDBDatabase::create(*scriptExecutionContext(), connectionProxy(), resultData));
m_readyState = ReadyState::Done;
enqueueEvent(IDBRequestCompletionEvent::create(eventNames().successEvent, Event::CanBubble::No, Event::IsCancelable::No, *this));
}
void IDBOpenDBRequest::onUpgradeNeeded(const IDBResultData& resultData)
{
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
Ref<IDBDatabase> database = IDBDatabase::create(*scriptExecutionContext(), connectionProxy(), resultData);
Ref<IDBTransaction> transaction = database->startVersionChangeTransaction(resultData.transactionInfo(), *this);
ASSERT(transaction->info().mode() == IDBTransactionMode::Versionchange);
ASSERT(transaction->originalDatabaseInfo());
uint64_t oldVersion = transaction->originalDatabaseInfo()->version();
uint64_t newVersion = transaction->info().newVersion();
LOG(IndexedDB, "IDBOpenDBRequest::onUpgradeNeeded() - current version is %" PRIu64 ", new is %" PRIu64, oldVersion, newVersion);
setResult(WTFMove(database));
m_readyState = ReadyState::Done;
m_transaction = WTFMove(transaction);
m_transaction->addRequest(*this);
enqueueEvent(IDBVersionChangeEvent::create(oldVersion, newVersion, eventNames().upgradeneededEvent));
}
void IDBOpenDBRequest::onDeleteDatabaseSuccess(const IDBResultData& resultData)
{
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
uint64_t oldVersion = resultData.databaseInfo().version();
LOG(IndexedDB, "IDBOpenDBRequest::onDeleteDatabaseSuccess() - current version is %" PRIu64, oldVersion);
m_readyState = ReadyState::Done;
setResultToUndefined();
enqueueEvent(IDBVersionChangeEvent::create(oldVersion, 0, eventNames().successEvent));
}
void IDBOpenDBRequest::requestCompleted(const IDBResultData& data)
{
LOG(IndexedDB, "IDBOpenDBRequest::requestCompleted");
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
m_isBlocked = false;
// If an Open request was completed after the page has navigated, leaving this request
// with a stopped script execution context, we need to message back to the server so it
// doesn't hang waiting on a database connection or transaction that will never exist.
if (m_contextStopped) {
switch (data.type()) {
case IDBResultType::OpenDatabaseSuccess:
connectionProxy().abortOpenAndUpgradeNeeded(data.databaseConnectionIdentifier(), IDBResourceIdentifier::emptyValue());
break;
case IDBResultType::OpenDatabaseUpgradeNeeded:
connectionProxy().abortOpenAndUpgradeNeeded(data.databaseConnectionIdentifier(), data.transactionInfo().identifier());
break;
default:
break;
}
return;
}
switch (data.type()) {
case IDBResultType::Error:
onError(data);
break;
case IDBResultType::OpenDatabaseSuccess:
onSuccess(data);
break;
case IDBResultType::OpenDatabaseUpgradeNeeded:
onUpgradeNeeded(data);
break;
case IDBResultType::DeleteDatabaseSuccess:
onDeleteDatabaseSuccess(data);
break;
default:
RELEASE_ASSERT_NOT_REACHED();
}
}
void IDBOpenDBRequest::requestBlocked(uint64_t oldVersion, uint64_t newVersion)
{
ASSERT(canCurrentThreadAccessThreadLocalData(originThread()));
ASSERT(!m_isBlocked);
m_isBlocked = true;
LOG(IndexedDB, "IDBOpenDBRequest::requestBlocked");
enqueueEvent(IDBVersionChangeEvent::create(oldVersion, newVersion, eventNames().blockedEvent));
}
void IDBOpenDBRequest::setIsContextSuspended(bool isContextSuspended)
{
m_isContextSuspended = isContextSuspended;
// If this request is blocked, it means this request is being processed on the server.
// The client needs to actively stop the request so it doesn't blocks the processing of subsequent requests.
if (m_isBlocked) {
IDBRequestData requestData(connectionProxy(), *this);
connectionProxy().openDBRequestCancelled(requestData);
auto result = IDBResultData::error(requestData.requestIdentifier(), IDBError { UnknownError, "Blocked open request on cached page is aborted to unblock other requests"_s });
requestCompleted(result);
}
}
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)