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WorkerGlobalScope.cpp
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776 lines (658 loc) · 29 KB
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/*
* Copyright (C) 2008-2025 Apple Inc. All rights reserved.
* Copyright (C) 2009, 2011 Google 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. ``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
* 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 "WorkerGlobalScope.h"
#include "CSSFontSelector.h"
#include "CSSValueList.h"
#include "CSSValuePool.h"
#include "CacheStorageProvider.h"
#include "CommonVM.h"
#include "ContentSecurityPolicy.h"
#include "CrossOriginMode.h"
#include "Crypto.h"
#include "CryptoKeyData.h"
#include "DOMTimer.h"
#include "FontCustomPlatformData.h"
#include "FontFaceSet.h"
#include "FrameConsoleClient.h"
#include "GarbageCollectionController.h"
#include "IDBConnectionProxy.h"
#include "ImageBitmapOptions.h"
#include "InspectorInstrumentation.h"
#include "JSDOMExceptionHandling.h"
#include "Logging.h"
#include "NotImplemented.h"
#include "Performance.h"
#include "RTCDataChannelRemoteHandlerConnection.h"
#include "ReportingScope.h"
#include "ScheduledAction.h"
#include "ScriptExecutionContextInlines.h"
#include "ScriptSourceCode.h"
#include "SecurityOrigin.h"
#include "SecurityOriginPolicy.h"
#include "ServiceWorker.h"
#include "ServiceWorkerClientData.h"
#include "ServiceWorkerGlobalScope.h"
#include "SocketProvider.h"
#include "TrustedType.h"
#include "URLKeepingBlobAlive.h"
#include "ViolationReportType.h"
#include "WindowOrWorkerGlobalScopeTrustedTypes.h"
#include "WorkerClient.h"
#include "WorkerFileSystemStorageConnection.h"
#include "WorkerFontLoadRequest.h"
#include "WorkerLoaderProxy.h"
#include "WorkerLocation.h"
#include "WorkerMessagePortChannelProvider.h"
#include "WorkerMessagingProxy.h"
#include "WorkerNavigator.h"
#include "WorkerOrWorkletGlobalScope.h"
#include "WorkerReportingProxy.h"
#include "WorkerSWClientConnection.h"
#include "WorkerScriptLoader.h"
#include "WorkerStorageConnection.h"
#include "WorkerThread.h"
#include <JavaScriptCore/ScriptArguments.h>
#include <JavaScriptCore/ScriptCallStack.h>
#include <wtf/Lock.h>
#include <wtf/TZoneMallocInlines.h>
#include <wtf/WorkQueue.h>
#include <wtf/threads/BinarySemaphore.h>
#if ENABLE(WEBDRIVER_BIDI)
#include "AutomationInstrumentation.h"
#endif
namespace WebCore {
using namespace Inspector;
static Lock allWorkerGlobalScopeIdentifiersLock;
static HashSet<ScriptExecutionContextIdentifier>& NODELETE allWorkerGlobalScopeIdentifiers() WTF_REQUIRES_LOCK(allWorkerGlobalScopeIdentifiersLock)
{
static NeverDestroyed<HashSet<ScriptExecutionContextIdentifier>> identifiers;
ASSERT(allWorkerGlobalScopeIdentifiersLock.isLocked());
return identifiers;
}
static WorkQueue& sharedFileSystemStorageQueueSingleton()
{
static NeverDestroyed<Ref<WorkQueue>> queue(WorkQueue::create("Shared File System Storage Queue"_s, WorkQueue::QOS::Default));
return queue.get();
}
WTF_MAKE_TZONE_ALLOCATED_IMPL(WorkerGlobalScope);
WorkerGlobalScope::WorkerGlobalScope(WorkerThreadType type, const WorkerParameters& params, Ref<SecurityOrigin>&& origin, WorkerThread& thread, Ref<SecurityOrigin>&& topOrigin, IDBClient::IDBConnectionProxy* connectionProxy, SocketProvider* socketProvider, std::unique_ptr<WorkerClient>&& workerClient)
: WorkerOrWorkletGlobalScope(type, params.sessionID, isMainThread() ? Ref { commonVM() } : JSC::VM::create(JSC::HeapType::Medium), params.referrerPolicy, &thread, params.noiseInjectionHashSalt, params.advancedPrivacyProtections, params.clientIdentifier)
, m_url(params.scriptURL)
, m_ownerURL(params.ownerURL)
, m_inspectorIdentifier(params.inspectorIdentifier)
, m_userAgent(params.userAgent)
, m_isOnline(params.isOnline)
, m_shouldBypassMainWorldContentSecurityPolicy(params.shouldBypassMainWorldContentSecurityPolicy)
, m_topOrigin(WTF::move(topOrigin))
, m_connectionProxy(connectionProxy)
, m_socketProvider(socketProvider)
, m_performance(Performance::create(this, params.timeOrigin))
, m_reportingScope(ReportingScope::create(*this))
, m_workerClient(WTF::move(workerClient))
, m_settingsValues(params.settingsValues)
, m_workerType(params.workerType)
, m_credentials(params.credentials)
{
{
Locker locker { allWorkerGlobalScopeIdentifiersLock };
allWorkerGlobalScopeIdentifiers().add(identifier());
}
if (m_topOrigin->hasUniversalAccess())
origin->grantUniversalAccess();
if (m_topOrigin->needsStorageAccessFromFileURLsQuirk())
origin->grantStorageAccessFromFileURLsQuirk();
setStorageBlockingPolicy(m_settingsValues.storageBlockingPolicy);
setSecurityOriginPolicy(SecurityOriginPolicy::create(WTF::move(origin)));
setContentSecurityPolicy(makeUnique<ContentSecurityPolicy>(URL { m_url }, *this));
setCrossOriginEmbedderPolicy(params.crossOriginEmbedderPolicy);
}
WorkerGlobalScope::~WorkerGlobalScope()
{
ASSERT(thread()->thread() == &Thread::currentSingleton());
{
Locker locker { allWorkerGlobalScopeIdentifiersLock };
allWorkerGlobalScopeIdentifiers().remove(identifier());
}
m_performance = nullptr;
m_crypto = nullptr;
// Notify proxy that we are going away. This can free the WorkerThread object, so do not access it after this.
if (auto* workerReportingProxy = thread()->workerReportingProxy())
workerReportingProxy->workerGlobalScopeDestroyed();
}
String WorkerGlobalScope::origin() const
{
RefPtr securityOrigin = this->securityOrigin();
return securityOrigin ? securityOrigin->toString() : emptyString();
}
void WorkerGlobalScope::prepareForDestruction()
{
WorkerOrWorkletGlobalScope::prepareForDestruction();
if (auto* trustedTypes = downcast<WorkerGlobalScopeTrustedTypes>(requireSupplement(WorkerGlobalScopeTrustedTypes::supplementName())))
trustedTypes->prepareForDestruction();
if (settingsValues().serviceWorkersEnabled)
swClientConnection().unregisterServiceWorkerClient(identifier());
if (RefPtr connectionProxy = m_connectionProxy)
connectionProxy->abortActivitiesForCurrentThread();
if (m_storageConnection)
m_storageConnection->scopeClosed();
if (RefPtr fileSystemStorageConnection = m_fileSystemStorageConnection)
fileSystemStorageConnection->scopeClosed();
}
void WorkerGlobalScope::removeAllEventListeners()
{
WorkerOrWorkletGlobalScope::removeAllEventListeners();
Ref performance = *m_performance;
performance->removeAllEventListeners();
performance->removeAllObservers();
m_reportingScope->removeAllObservers();
}
bool WorkerGlobalScope::isSecureContext() const
{
if (!settingsValues().secureContextChecksEnabled)
return true;
return m_topOrigin->isPotentiallyTrustworthy();
}
void WorkerGlobalScope::applyContentSecurityPolicyResponseHeaders(const ContentSecurityPolicyResponseHeaders& contentSecurityPolicyResponseHeaders)
{
protect(contentSecurityPolicy())->didReceiveHeaders(contentSecurityPolicyResponseHeaders, String { });
}
URL WorkerGlobalScope::completeURL(const String& url, ForceUTF8) const
{
// Always return a null URL when passed a null string.
// FIXME: Should we change the URL constructor to have this behavior?
if (url.isNull())
return URL();
// Always use UTF-8 in Workers.
return URL(m_url, url);
}
String WorkerGlobalScope::userAgent(const URL&) const
{
return m_userAgent;
}
SocketProvider* WorkerGlobalScope::socketProvider()
{
return m_socketProvider.get();
}
RefPtr<RTCDataChannelRemoteHandlerConnection> WorkerGlobalScope::createRTCDataChannelRemoteHandlerConnection()
{
RefPtr<RTCDataChannelRemoteHandlerConnection> connection;
callOnMainThreadAndWait([workerThread = Ref { thread() }, &connection]() mutable {
if (CheckedPtr workerLoaderProxy = workerThread->workerLoaderProxy())
connection = workerLoaderProxy->createRTCDataChannelRemoteHandlerConnection();
});
ASSERT(connection);
return connection;
}
IDBClient::IDBConnectionProxy* WorkerGlobalScope::idbConnectionProxy()
{
return m_connectionProxy.get();
}
void WorkerGlobalScope::replaceIDBConnectionProxy(RefPtr<IDBClient::IDBConnectionProxy>&& proxy)
{
m_connectionProxy = WTF::move(proxy);
}
void WorkerGlobalScope::replaceIDBConnectionProxyOnAllWorkers(RefPtr<IDBClient::IDBConnectionProxy>&& proxy)
{
Locker locker { allWorkerGlobalScopeIdentifiersLock };
for (auto& globalScopeIdentifier : allWorkerGlobalScopeIdentifiers()) {
postTaskTo(globalScopeIdentifier, [proxy](auto& context) {
downcast<WorkerGlobalScope>(context).replaceIDBConnectionProxy(RefPtr { proxy });
});
}
}
GraphicsClient* WorkerGlobalScope::graphicsClient()
{
return workerClient();
}
void WorkerGlobalScope::suspend()
{
if (RefPtr connectionProxy = m_connectionProxy)
connectionProxy->setContextSuspended(*this, true);
if (settingsValues().serviceWorkersEnabled)
swClientConnection().unregisterServiceWorkerClient(identifier());
}
void WorkerGlobalScope::resume()
{
if (settingsValues().serviceWorkersEnabled)
updateServiceWorkerClientData();
if (RefPtr connectionProxy = m_connectionProxy)
connectionProxy->setContextSuspended(*this, false);
}
WorkerStorageConnection& WorkerGlobalScope::storageConnection()
{
if (!m_storageConnection)
lazyInitialize(m_storageConnection, WorkerStorageConnection::create(*this));
return *m_storageConnection;
}
void WorkerGlobalScope::postFileSystemStorageTask(Function<void()>&& task)
{
sharedFileSystemStorageQueueSingleton().dispatch(WTF::move(task));
}
WorkerFileSystemStorageConnection& WorkerGlobalScope::getFileSystemStorageConnection(Ref<FileSystemStorageConnection>&& mainThreadConnection)
{
if (!m_fileSystemStorageConnection)
m_fileSystemStorageConnection = WorkerFileSystemStorageConnection::create(*this, WTF::move(mainThreadConnection));
else if (m_fileSystemStorageConnection->mainThreadConnection() != mainThreadConnection.ptr()) {
Ref { *m_fileSystemStorageConnection }->connectionClosed();
m_fileSystemStorageConnection = WorkerFileSystemStorageConnection::create(*this, WTF::move(mainThreadConnection));
}
return *m_fileSystemStorageConnection;
}
WorkerFileSystemStorageConnection* WorkerGlobalScope::fileSystemStorageConnection()
{
return m_fileSystemStorageConnection.get();
}
WorkerLocation& WorkerGlobalScope::location() const
{
if (!m_location)
lazyInitialize(m_location, WorkerLocation::create(URL { m_url }, origin()));
return *m_location;
}
void WorkerGlobalScope::close()
{
if (isClosing())
return;
// Let current script run to completion but prevent future script evaluations.
// After m_closing is set, all the tasks in the queue continue to be fetched but only
// tasks with isCleanupTask()==true will be executed.
markAsClosing();
postTask({ ScriptExecutionContext::Task::CleanupTask, [] (ScriptExecutionContext& context) {
ASSERT_WITH_SECURITY_IMPLICATION(is<WorkerGlobalScope>(context));
WorkerGlobalScope& workerGlobalScope = downcast<WorkerGlobalScope>(context);
// Notify parent that this context is closed. Parent is responsible for calling WorkerThread::stop().
if (auto* workerReportingProxy = workerGlobalScope.thread()->workerReportingProxy())
workerReportingProxy->workerGlobalScopeClosed();
} });
}
WorkerNavigator& WorkerGlobalScope::navigator()
{
if (!m_navigator)
lazyInitialize(m_navigator, WorkerNavigator::create(*this, m_userAgent, m_isOnline));
return *m_navigator;
}
void WorkerGlobalScope::setIsOnline(bool isOnline)
{
m_isOnline = isOnline;
if (m_navigator)
m_navigator->setIsOnline(isOnline);
}
ExceptionOr<int> WorkerGlobalScope::setTimeout(std::unique_ptr<ScheduledAction> action, int timeout, FixedVector<JSC::Strong<JSC::Unknown>>&& arguments)
{
// FIXME: Should this check really happen here? Or should it happen when code is about to eval?
if (action->type() == ScheduledAction::Type::Code) {
if (!protect(contentSecurityPolicy())->allowEval(globalObject(), LogToConsole::Yes, action->code()))
return 0;
}
action->addArguments(WTF::move(arguments));
return DOMTimer::install(*this, WTF::move(action), Seconds::fromMilliseconds(timeout), DOMTimer::Type::SingleShot);
}
void WorkerGlobalScope::clearTimeout(int timeoutId)
{
DOMTimer::removeById(*this, timeoutId);
}
ExceptionOr<int> WorkerGlobalScope::setInterval(std::unique_ptr<ScheduledAction> action, int timeout, FixedVector<JSC::Strong<JSC::Unknown>>&& arguments)
{
// FIXME: Should this check really happen here? Or should it happen when code is about to eval?
if (action->type() == ScheduledAction::Type::Code) {
if (!protect(contentSecurityPolicy())->allowEval(globalObject(), LogToConsole::Yes, action->code()))
return 0;
}
action->addArguments(WTF::move(arguments));
return DOMTimer::install(*this, WTF::move(action), Seconds::fromMilliseconds(timeout), DOMTimer::Type::Repeating);
}
void WorkerGlobalScope::clearInterval(int timeoutId)
{
DOMTimer::removeById(*this, timeoutId);
}
ExceptionOr<void> WorkerGlobalScope::importScripts(const FixedVector<Variant<Ref<TrustedScriptURL>, String>>& urls)
{
ASSERT(contentSecurityPolicy());
Vector<String> urlStrings;
urlStrings.reserveInitialCapacity(urls.size());
for (auto&& entry : urls) {
auto stringValueHolder = WTF::switchOn(entry,
[this](const String& str) -> ExceptionOr<String> {
return trustedTypeCompliantString(TrustedType::TrustedScriptURL, *this, str, "WorkerGlobalScope importScripts"_s);
},
[](const Ref<TrustedScriptURL>& trustedScriptURL) -> ExceptionOr<String> {
return trustedScriptURL->toString();
}
);
if (stringValueHolder.hasException())
return stringValueHolder.releaseException();
urlStrings.append(stringValueHolder.releaseReturnValue());
}
// https://html.spec.whatwg.org/multipage/workers.html#importing-scripts-and-libraries
// 1. If worker global scope's type is "module", throw a TypeError exception.
if (m_workerType == WorkerType::Module)
return Exception { ExceptionCode::TypeError, "importScripts cannot be used if worker type is \"module\""_s };
Vector<URLKeepingBlobAlive> completedURLs;
completedURLs.reserveInitialCapacity(urls.size());
for (auto& entry : urlStrings) {
URL url = completeURL(entry);
if (!url.isValid())
return Exception { ExceptionCode::SyntaxError };
completedURLs.append({ WTF::move(url), m_topOrigin->data() });
}
FetchOptions::Cache cachePolicy = FetchOptions::Cache::Default;
if (auto* serviceWorkerGlobalScope = dynamicDowncast<ServiceWorkerGlobalScope>(*this)) {
// FIXME: We need to add support for the 'imported scripts updated' flag as per:
// https://w3c.github.io/ServiceWorker/#importscripts
auto& registration = serviceWorkerGlobalScope->registration();
if (registration.updateViaCache() == ServiceWorkerUpdateViaCache::None || registration.needsUpdate())
cachePolicy = FetchOptions::Cache::NoCache;
}
for (auto& url : completedURLs) {
// FIXME: Convert this to check the isolated world's Content Security Policy once webkit.org/b/104520 is solved.
bool shouldBypassMainWorldContentSecurityPolicy = this->shouldBypassMainWorldContentSecurityPolicy();
if (!shouldBypassMainWorldContentSecurityPolicy && !protect(contentSecurityPolicy())->allowScriptFromSource(url))
return Exception { ExceptionCode::NetworkError };
auto scriptLoader = WorkerScriptLoader::create();
auto cspEnforcement = shouldBypassMainWorldContentSecurityPolicy ? ContentSecurityPolicyEnforcement::DoNotEnforce : ContentSecurityPolicyEnforcement::EnforceScriptSrcDirective;
if (auto exception = scriptLoader->loadSynchronously(this, url, WorkerScriptLoader::Source::ClassicWorkerImport, FetchOptions::Mode::NoCors, cachePolicy, cspEnforcement, resourceRequestIdentifier()))
return WTF::move(*exception);
// https://html.spec.whatwg.org/multipage/webappapis.html#fetch-a-classic-worker-imported-script (step 7).
bool mutedErrors = scriptLoader->responseTainting() == ResourceResponse::Tainting::Opaque || scriptLoader->responseTainting() == ResourceResponse::Tainting::Opaqueredirect;
WeakPtr<ScriptBufferSourceProvider> sourceProvider;
{
NakedPtr<JSC::Exception> exception;
ScriptSourceCode sourceCode(scriptLoader->script(), URL(scriptLoader->responseURL()), scriptLoader->isRedirected() ? URL(scriptLoader->url()) : URL());
sourceProvider = downcast<ScriptBufferSourceProvider>(sourceCode.provider());
script()->evaluate(sourceCode, exception);
if (exception) {
if (mutedErrors)
return Exception { ExceptionCode::NetworkError, "Network response is CORS-cross-origin"_s };
script()->setException(exception);
return { };
}
}
if (sourceProvider)
addImportedScriptSourceProvider(url, *sourceProvider);
}
return { };
}
EventTarget* WorkerGlobalScope::errorEventTarget()
{
return this;
}
void WorkerGlobalScope::logExceptionToConsole(const String& errorMessage, const String& sourceURL, int lineNumber, int columnNumber, RefPtr<ScriptCallStack>&&)
{
if (auto* workerReportingProxy = thread()->workerReportingProxy())
workerReportingProxy->postExceptionToWorkerObject(errorMessage, lineNumber, columnNumber, sourceURL);
}
void WorkerGlobalScope::addConsoleMessage(std::unique_ptr<Inspector::ConsoleMessage>&& message)
{
if (!isContextThread()) {
postTask(AddConsoleMessageTask(message->source(), message->level(), message->message()));
return;
}
auto sessionID = this->sessionID();
if (settingsValues().logsPageMessagesToSystemConsoleEnabled && sessionID && !sessionID->isEphemeral()) [[unlikely]]
FrameConsoleClient::logMessageToSystemConsole(*message);
#if ENABLE(WEBDRIVER_BIDI)
AutomationInstrumentation::addMessageToConsole(message);
#endif
InspectorInstrumentation::addMessageToConsole(*this, WTF::move(message));
}
void WorkerGlobalScope::addConsoleMessage(MessageSource source, MessageLevel level, const String& message, unsigned long requestIdentifier)
{
addMessage(source, level, message, { }, 0, 0, nullptr, nullptr, requestIdentifier);
}
void WorkerGlobalScope::addMessage(MessageSource source, MessageLevel level, const String& messageText, const String& sourceURL, unsigned lineNumber, unsigned columnNumber, RefPtr<ScriptCallStack>&& callStack, JSC::JSGlobalObject* state, unsigned long requestIdentifier)
{
if (!isContextThread()) {
postTask(AddConsoleMessageTask(source, level, messageText));
return;
}
std::unique_ptr<Inspector::ConsoleMessage> message;
if (callStack)
message = makeUnique<Inspector::ConsoleMessage>(source, MessageType::Log, level, messageText, callStack.releaseNonNull(), requestIdentifier);
else
message = makeUnique<Inspector::ConsoleMessage>(source, MessageType::Log, level, messageText, sourceURL, lineNumber, columnNumber, state, requestIdentifier);
#if ENABLE(WEBDRIVER_BIDI)
AutomationInstrumentation::addMessageToConsole(message);
#endif
InspectorInstrumentation::addMessageToConsole(*this, WTF::move(message));
}
std::optional<Vector<uint8_t>> WorkerGlobalScope::serializeAndWrapCryptoKey(CryptoKeyData&& keyData)
{
Ref protectedThis { *this };
auto* workerLoaderProxy = thread()->workerLoaderProxy();
if (!workerLoaderProxy)
return std::nullopt;
BinarySemaphore semaphore;
std::optional<Vector<uint8_t>> wrappedKey;
workerLoaderProxy->postTaskToLoader([&semaphore, &wrappedKey, keyData = crossThreadCopy(WTF::move(keyData))](auto& context) mutable {
wrappedKey = context.serializeAndWrapCryptoKey(WTF::move(keyData));
semaphore.signal();
});
semaphore.wait();
return wrappedKey;
}
std::optional<Vector<uint8_t>> WorkerGlobalScope::unwrapCryptoKey(const Vector<uint8_t>& wrappedKey)
{
Ref protectedThis { *this };
auto* workerLoaderProxy = thread()->workerLoaderProxy();
if (!workerLoaderProxy)
return std::nullopt;
BinarySemaphore semaphore;
std::optional<Vector<uint8_t>> key;
workerLoaderProxy->postTaskToLoader([&semaphore, &key, &wrappedKey](auto& context) {
key = context.unwrapCryptoKey(wrappedKey);
semaphore.signal();
});
semaphore.wait();
return key;
}
Crypto& WorkerGlobalScope::crypto()
{
if (!m_crypto)
m_crypto = Crypto::create(this);
return *m_crypto;
}
Performance& WorkerGlobalScope::performance() const
{
return *m_performance;
}
CacheStorageConnection& WorkerGlobalScope::cacheStorageConnection()
{
if (!m_cacheStorageConnection) {
RefPtr<CacheStorageConnection> mainThreadConnection;
callOnMainThreadAndWait([workerThread = Ref { thread() }, &mainThreadConnection]() mutable {
if (workerThread->runLoop().terminated())
return;
if (CheckedPtr workerLoaderProxy = workerThread->workerLoaderProxy())
mainThreadConnection = workerLoaderProxy->createCacheStorageConnection();
});
if (!mainThreadConnection) {
RELEASE_LOG_INFO(ServiceWorker, "Creating worker dummy CacheStorageConnection");
mainThreadConnection = CacheStorageProvider::DummyCacheStorageConnection::create();
}
lazyInitialize(m_cacheStorageConnection, mainThreadConnection.releaseNonNull());
}
return *m_cacheStorageConnection;
}
MessagePortChannelProvider& WorkerGlobalScope::messagePortChannelProvider()
{
if (!m_messagePortChannelProvider)
lazyInitialize(m_messagePortChannelProvider, WorkerMessagePortChannelProvider::create(*this));
return *m_messagePortChannelProvider;
}
WorkerSWClientConnection& WorkerGlobalScope::swClientConnection()
{
if (!m_swClientConnection)
lazyInitialize(m_swClientConnection, WorkerSWClientConnection::create(*this));
return *m_swClientConnection;
}
void WorkerGlobalScope::createImageBitmap(ImageBitmap::Source&& source, ImageBitmapOptions&& options, ImageBitmap::Promise&& promise)
{
ImageBitmap::createPromise(*this, WTF::move(source), WTF::move(options), WTF::move(promise));
}
void WorkerGlobalScope::createImageBitmap(ImageBitmap::Source&& source, int sx, int sy, int sw, int sh, ImageBitmapOptions&& options, ImageBitmap::Promise&& promise)
{
ImageBitmap::createPromise(*this, WTF::move(source), WTF::move(options), sx, sy, sw, sh, WTF::move(promise));
}
CSSValuePool& WorkerGlobalScope::cssValuePool()
{
if (!m_cssValuePool)
lazyInitialize(m_cssValuePool, makeUnique<CSSValuePool>());
return *m_cssValuePool;
}
CSSFontSelector* WorkerGlobalScope::cssFontSelector()
{
if (!m_cssFontSelector)
lazyInitialize(m_cssFontSelector, CSSFontSelector::create(*this));
return m_cssFontSelector.get();
}
Ref<FontFaceSet> WorkerGlobalScope::fonts()
{
ASSERT(cssFontSelector());
return cssFontSelector()->fontFaceSet();
}
RefPtr<FontLoadRequest> WorkerGlobalScope::fontLoadRequest(const String& url, bool, bool, LoadedFromOpaqueSource loadedFromOpaqueSource)
{
return WorkerFontLoadRequest::create(completeURL(url), loadedFromOpaqueSource);
}
void WorkerGlobalScope::beginLoadingFontSoon(FontLoadRequest& request)
{
downcast<WorkerFontLoadRequest>(request).load(*this);
}
Ref<WorkerThread> WorkerGlobalScope::thread() const
{
return downcast<WorkerThread>(workerOrWorkletThread()).releaseNonNull();
}
void WorkerGlobalScope::releaseMemory(Synchronous synchronous)
{
ASSERT(isContextThread());
deleteJSCodeAndGC(synchronous);
clearDecodedScriptData();
}
void WorkerGlobalScope::deleteJSCodeAndGC(Synchronous synchronous)
{
ASSERT(isContextThread());
JSC::JSLockHolder lock(vm());
vm().deleteAllCode(JSC::DeleteAllCodeIfNotCollecting);
if (synchronous == Synchronous::Yes) {
if (!vm().heap.currentThreadIsDoingGCWork()) {
vm().heap.collectNow(JSC::Sync, JSC::CollectionScope::Full);
WTF::releaseFastMallocFreeMemory();
return;
}
}
#if PLATFORM(IOS_FAMILY)
if (!vm().heap.currentThreadIsDoingGCWork()) {
vm().heap.collectNowFullIfNotDoneRecently(JSC::Async);
return;
}
#endif
vm().heap.reportAbandonedObjectGraph();
}
void WorkerGlobalScope::releaseMemoryInWorkers(Synchronous synchronous)
{
Locker locker { allWorkerGlobalScopeIdentifiersLock };
for (auto& globalScopeIdentifier : allWorkerGlobalScopeIdentifiers()) {
postTaskTo(globalScopeIdentifier, [synchronous](auto& context) {
downcast<WorkerGlobalScope>(context).releaseMemory(synchronous);
});
}
}
void WorkerGlobalScope::dumpGCHeapForWorkers()
{
Locker locker { allWorkerGlobalScopeIdentifiersLock };
for (auto& globalScopeIdentifier : allWorkerGlobalScopeIdentifiers()) {
postTaskTo(globalScopeIdentifier, [](auto& context) {
GarbageCollectionController::dumpHeapForVM(downcast<WorkerGlobalScope>(context).vm());
});
}
}
void WorkerGlobalScope::setMainScriptSourceProvider(ScriptBufferSourceProvider& provider)
{
ASSERT(!m_mainScriptSourceProvider);
m_mainScriptSourceProvider = provider;
}
void WorkerGlobalScope::addImportedScriptSourceProvider(const URL& url, ScriptBufferSourceProvider& provider)
{
m_importedScriptsSourceProviders.ensure(url, [] {
return WeakHashSet<ScriptBufferSourceProvider> { };
}).iterator->value.add(provider);
}
void WorkerGlobalScope::reportErrorToWorkerObject(const String& errorMessage)
{
if (auto* workerReportingProxy = thread()->workerReportingProxy())
workerReportingProxy->reportErrorToWorkerObject(errorMessage);
}
void WorkerGlobalScope::clearDecodedScriptData()
{
ASSERT(isContextThread());
if (RefPtr provider = m_mainScriptSourceProvider.get())
provider->clearDecodedData();
for (auto& sourceProviders : m_importedScriptsSourceProviders.values()) {
for (Ref sourceProvider : sourceProviders)
sourceProvider->clearDecodedData();
}
}
bool WorkerGlobalScope::crossOriginIsolated() const
{
return ScriptExecutionContext::crossOriginMode() == CrossOriginMode::Isolated;
}
void WorkerGlobalScope::updateSourceProviderBuffers(const ScriptBuffer& mainScript, const HashMap<URL, ScriptBuffer>& importedScripts)
{
ASSERT(isContextThread());
if (mainScript) {
if (RefPtr provider = m_mainScriptSourceProvider.get())
provider->tryReplaceScriptBuffer(mainScript);
}
for (auto& pair : importedScripts) {
auto it = m_importedScriptsSourceProviders.find(pair.key);
if (it == m_importedScriptsSourceProviders.end())
continue;
for (Ref sourceProvider : it->value)
sourceProvider->tryReplaceScriptBuffer(pair.value);
}
}
void WorkerGlobalScope::updateServiceWorkerClientData()
{
if (!settingsValues().serviceWorkersEnabled)
return;
ASSERT(type() == WebCore::WorkerGlobalScope::Type::DedicatedWorker || type() == WebCore::WorkerGlobalScope::Type::SharedWorker);
auto controllingServiceWorkerRegistrationIdentifier = activeServiceWorker() ? std::make_optional<ServiceWorkerRegistrationIdentifier>(activeServiceWorker()->registrationIdentifier()) : std::nullopt;
swClientConnection().registerServiceWorkerClient(clientOrigin(), ServiceWorkerClientData::from(*this), controllingServiceWorkerRegistrationIdentifier, String { m_userAgent });
}
void WorkerGlobalScope::notifyReportObservers(Ref<Report>&& reports)
{
reportingScope().notifyReportObservers(WTF::move(reports));
}
String WorkerGlobalScope::endpointURIForToken(const String& token) const
{
return reportingScope().endpointURIForToken(token);
}
void WorkerGlobalScope::sendReportToEndpoints(const URL&, std::span<const String> /*endpointURIs*/, std::span<const String> /*endpointTokens*/, Ref<FormData>&&, ViolationReportType)
{
notImplemented();
}
} // namespace WebCore