/
WebProcess.cpp
1615 lines (1313 loc) · 56.7 KB
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WebProcess.cpp
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/*
* Copyright (C) 2009-2017 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 "WebProcess.h"
#include "APIFrameHandle.h"
#include "APIPageGroupHandle.h"
#include "APIPageHandle.h"
#include "AuthenticationManager.h"
#include "ChildProcessMessages.h"
#include "DrawingArea.h"
#include "EventDispatcher.h"
#include "InjectedBundle.h"
#include "LibWebRTCNetwork.h"
#include "Logging.h"
#include "NetworkConnectionToWebProcessMessages.h"
#include "NetworkProcessConnection.h"
#include "NetworkSession.h"
#include "PluginProcessConnectionManager.h"
#include "SessionTracker.h"
#include "StatisticsData.h"
#include "UserData.h"
#include "WebAutomationSessionProxy.h"
#include "WebConnectionToUIProcess.h"
#include "WebCookieManager.h"
#include "WebCoreArgumentCoders.h"
#include "WebFrame.h"
#include "WebFrameNetworkingContext.h"
#include "WebGamepadProvider.h"
#include "WebGeolocationManager.h"
#include "WebLoaderStrategy.h"
#include "WebMediaKeyStorageManager.h"
#include "WebMemorySampler.h"
#include "WebPage.h"
#include "WebPageGroupProxy.h"
#include "WebPlatformStrategies.h"
#include "WebPluginInfoProvider.h"
#include "WebProcessCreationParameters.h"
#include "WebProcessMessages.h"
#include "WebProcessPoolMessages.h"
#include "WebProcessProxyMessages.h"
#include "WebResourceLoadStatisticsStoreMessages.h"
#include "WebSocketStream.h"
#include "WebToStorageProcessConnection.h"
#include "WebsiteData.h"
#include "WebsiteDataType.h"
#include <JavaScriptCore/JSLock.h>
#include <JavaScriptCore/MemoryStatistics.h>
#include <JavaScriptCore/WasmFaultSignalHandler.h>
#include <WebCore/AXObjectCache.h>
#include <WebCore/ApplicationCacheStorage.h>
#include <WebCore/AuthenticationChallenge.h>
#include <WebCore/CPUMonitor.h>
#include <WebCore/CommonVM.h>
#include <WebCore/CrossOriginPreflightResultCache.h>
#include <WebCore/DNS.h>
#include <WebCore/DatabaseManager.h>
#include <WebCore/DatabaseTracker.h>
#include <WebCore/DiagnosticLoggingClient.h>
#include <WebCore/DiagnosticLoggingKeys.h>
#include <WebCore/FontCache.h>
#include <WebCore/FontCascade.h>
#include <WebCore/Frame.h>
#include <WebCore/FrameLoader.h>
#include <WebCore/GCController.h>
#include <WebCore/GlyphPage.h>
#include <WebCore/HTMLMediaElement.h>
#include <WebCore/JSDOMWindow.h>
#include <WebCore/Language.h>
#include <WebCore/MainFrame.h>
#include <WebCore/MemoryCache.h>
#include <WebCore/MemoryRelease.h>
#include <WebCore/NetworkStorageSession.h>
#include <WebCore/Page.h>
#include <WebCore/PageCache.h>
#include <WebCore/PageGroup.h>
#include <WebCore/PlatformMediaSessionManager.h>
#include <WebCore/ResourceHandle.h>
#include <WebCore/ResourceLoadObserver.h>
#include <WebCore/ResourceLoadStatistics.h>
#include <WebCore/RuntimeApplicationChecks.h>
#include <WebCore/SchemeRegistry.h>
#include <WebCore/SecurityOrigin.h>
#include <WebCore/Settings.h>
#include <WebCore/URLParser.h>
#include <WebCore/UserGestureIndicator.h>
#include <unistd.h>
#include <wtf/CurrentTime.h>
#include <wtf/HashCountedSet.h>
#include <wtf/RunLoop.h>
#include <wtf/text/StringHash.h>
#if PLATFORM(WAYLAND)
#include "WaylandCompositorDisplay.h"
#endif
#if PLATFORM(COCOA)
#include "CookieStorageShim.h"
#include "ObjCObjectGraph.h"
#include "UserMediaCaptureManager.h"
#endif
#if ENABLE(SEC_ITEM_SHIM)
#include "SecItemShim.h"
#endif
#if ENABLE(NOTIFICATIONS)
#include "WebNotificationManager.h"
#endif
#if ENABLE(REMOTE_INSPECTOR)
#include <JavaScriptCore/RemoteInspector.h>
#endif
using namespace JSC;
using namespace WebCore;
// This should be less than plugInAutoStartExpirationTimeThreshold in PlugInAutoStartProvider.
static const double plugInAutoStartExpirationTimeUpdateThreshold = 29 * 24 * 60 * 60;
// This should be greater than tileRevalidationTimeout in TileController.
static const Seconds nonVisibleProcessCleanupDelay { 10_s };
namespace WebKit {
WebProcess& WebProcess::singleton()
{
static WebProcess& process = *new WebProcess;
return process;
}
WebProcess::WebProcess()
: m_eventDispatcher(EventDispatcher::create())
#if PLATFORM(IOS)
, m_viewUpdateDispatcher(ViewUpdateDispatcher::create())
#endif
, m_webInspectorInterruptDispatcher(WebInspectorInterruptDispatcher::create())
, m_webLoaderStrategy(*new WebLoaderStrategy)
, m_dnsPrefetchHystereris([this](HysteresisState state) { if (state == HysteresisState::Stopped) m_dnsPrefetchedHosts.clear(); })
#if ENABLE(NETSCAPE_PLUGIN_API)
, m_pluginProcessConnectionManager(PluginProcessConnectionManager::create())
#endif
, m_nonVisibleProcessCleanupTimer(*this, &WebProcess::nonVisibleProcessCleanupTimerFired)
#if PLATFORM(IOS)
, m_webSQLiteDatabaseTracker(*this)
#endif
{
// Initialize our platform strategies.
WebPlatformStrategies::initialize();
// FIXME: This should moved to where WebProcess::initialize is called,
// so that ports have a chance to customize, and ifdefs in this file are
// limited.
addSupplement<WebGeolocationManager>();
addSupplement<WebCookieManager>();
addSupplement<AuthenticationManager>();
#if ENABLE(NOTIFICATIONS)
addSupplement<WebNotificationManager>();
#endif
#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
addSupplement<WebMediaKeyStorageManager>();
#endif
#if PLATFORM(COCOA) && ENABLE(MEDIA_STREAM)
addSupplement<UserMediaCaptureManager>();
#endif
m_plugInAutoStartOriginHashes.add(SessionID::defaultSessionID(), HashMap<unsigned, double>());
ResourceLoadObserver::shared().setNotificationCallback([this] (Vector<ResourceLoadStatistics>&& statistics) {
ASSERT(!statistics.isEmpty());
parentProcessConnection()->send(Messages::WebResourceLoadStatisticsStore::ResourceLoadStatisticsUpdated(WTFMove(statistics)), 0);
});
Gigacage::disableDisablingPrimitiveGigacageIfShouldBeEnabled();
}
WebProcess::~WebProcess()
{
}
void WebProcess::initializeProcess(const ChildProcessInitializationParameters& parameters)
{
platformInitializeProcess(parameters);
}
void WebProcess::initializeConnection(IPC::Connection* connection)
{
ChildProcess::initializeConnection(connection);
connection->setShouldExitOnSyncMessageSendFailure(true);
#if HAVE(QOS_CLASSES)
connection->setShouldBoostMainThreadOnSyncMessage(true);
#endif
m_eventDispatcher->initializeConnection(connection);
#if PLATFORM(IOS)
m_viewUpdateDispatcher->initializeConnection(connection);
#endif // PLATFORM(IOS)
m_webInspectorInterruptDispatcher->initializeConnection(connection);
#if ENABLE(NETSCAPE_PLUGIN_API)
m_pluginProcessConnectionManager->initializeConnection(connection);
#endif
for (auto& supplement : m_supplements.values())
supplement->initializeConnection(connection);
m_webConnection = WebConnectionToUIProcess::create(this);
// In order to ensure that the asynchronous messages that are used for notifying the UI process
// about when WebFrame objects come and go are always delivered before the synchronous policy messages,
// use this flag to force synchronous messages to be treated as asynchronous messages in the UI process
// unless when doing so would lead to a deadlock.
connection->setOnlySendMessagesAsDispatchWhenWaitingForSyncReplyWhenProcessingSuchAMessage(true);
}
void WebProcess::initializeWebProcess(WebProcessCreationParameters&& parameters)
{
ASSERT(m_pageMap.isEmpty());
WebCore::setPresentingApplicationPID(parameters.presentingApplicationPID);
#if OS(LINUX)
if (parameters.memoryPressureMonitorHandle.fileDescriptor() != -1)
MemoryPressureHandler::singleton().setMemoryPressureMonitorHandle(parameters.memoryPressureMonitorHandle.releaseFileDescriptor());
MemoryPressureHandler::ReliefLogger::setLoggingEnabled(parameters.shouldEnableMemoryPressureReliefLogging);
#endif
platformInitializeWebProcess(WTFMove(parameters));
// Match the QoS of the UIProcess and the scrolling thread but use a slightly lower priority.
WTF::Thread::setCurrentThreadIsUserInteractive(-1);
m_suppressMemoryPressureHandler = parameters.shouldSuppressMemoryPressureHandler;
if (!m_suppressMemoryPressureHandler) {
auto& memoryPressureHandler = MemoryPressureHandler::singleton();
memoryPressureHandler.setLowMemoryHandler([] (Critical critical, Synchronous synchronous) {
WebCore::releaseMemory(critical, synchronous);
});
#if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 101200) || PLATFORM(GTK) || PLATFORM(WPE)
#if CPU(X86_64) || CPU(ARM64)
memoryPressureHandler.setShouldUsePeriodicMemoryMonitor(true);
memoryPressureHandler.setMemoryKillCallback([this] () {
WebCore::logMemoryStatisticsAtTimeOfDeath();
if (MemoryPressureHandler::singleton().processState() == WebsamProcessState::Active)
parentProcessConnection()->send(Messages::WebProcessProxy::DidExceedActiveMemoryLimit(), 0);
else
parentProcessConnection()->send(Messages::WebProcessProxy::DidExceedInactiveMemoryLimit(), 0);
});
memoryPressureHandler.setDidExceedInactiveLimitWhileActiveCallback([this] () {
parentProcessConnection()->send(Messages::WebProcessProxy::DidExceedInactiveMemoryLimitWhileActive(), 0);
});
#endif
#endif
memoryPressureHandler.setMemoryPressureStatusChangedCallback([this](bool isUnderMemoryPressure) {
if (parentProcessConnection())
parentProcessConnection()->send(Messages::WebProcessProxy::MemoryPressureStatusChanged(isUnderMemoryPressure), 0);
});
memoryPressureHandler.install();
}
for (size_t i = 0, size = parameters.additionalSandboxExtensionHandles.size(); i < size; ++i)
SandboxExtension::consumePermanently(parameters.additionalSandboxExtensionHandles[i]);
if (!parameters.injectedBundlePath.isEmpty())
m_injectedBundle = InjectedBundle::create(parameters, transformHandlesToObjects(parameters.initializationUserData.object()).get());
for (auto& supplement : m_supplements.values())
supplement->initialize(parameters);
auto& databaseManager = DatabaseManager::singleton();
databaseManager.initialize(parameters.webSQLDatabaseDirectory);
// FIXME: This should be constructed per data store, not per process.
m_applicationCacheStorage = ApplicationCacheStorage::create(parameters.applicationCacheDirectory, parameters.applicationCacheFlatFileSubdirectoryName);
#if PLATFORM(IOS)
m_applicationCacheStorage->setDefaultOriginQuota(25ULL * 1024 * 1024);
#endif
#if ENABLE(VIDEO)
if (!parameters.mediaCacheDirectory.isEmpty())
WebCore::HTMLMediaElement::setMediaCacheDirectory(parameters.mediaCacheDirectory);
#endif
setCacheModel(static_cast<uint32_t>(parameters.cacheModel));
if (!parameters.languages.isEmpty())
overrideUserPreferredLanguages(parameters.languages);
m_textCheckerState = parameters.textCheckerState;
m_fullKeyboardAccessEnabled = parameters.fullKeyboardAccessEnabled;
for (auto& scheme : parameters.urlSchemesRegisteredAsEmptyDocument)
registerURLSchemeAsEmptyDocument(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsSecure)
registerURLSchemeAsSecure(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsBypassingContentSecurityPolicy)
registerURLSchemeAsBypassingContentSecurityPolicy(scheme);
for (auto& scheme : parameters.urlSchemesForWhichDomainRelaxationIsForbidden)
setDomainRelaxationForbiddenForURLScheme(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsLocal)
registerURLSchemeAsLocal(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsNoAccess)
registerURLSchemeAsNoAccess(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsDisplayIsolated)
registerURLSchemeAsDisplayIsolated(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsCORSEnabled)
registerURLSchemeAsCORSEnabled(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsAlwaysRevalidated)
registerURLSchemeAsAlwaysRevalidated(scheme);
for (auto& scheme : parameters.urlSchemesRegisteredAsCachePartitioned)
registerURLSchemeAsCachePartitioned(scheme);
setDefaultRequestTimeoutInterval(parameters.defaultRequestTimeoutInterval);
setResourceLoadStatisticsEnabled(parameters.resourceLoadStatisticsEnabled);
if (parameters.shouldAlwaysUseComplexTextCodePath)
setAlwaysUsesComplexTextCodePath(true);
if (parameters.shouldUseFontSmoothing)
setShouldUseFontSmoothing(true);
if (parameters.shouldUseTestingNetworkSession)
NetworkStorageSession::switchToNewTestingSession();
ensureNetworkProcessConnection();
#if PLATFORM(COCOA)
CookieStorageShim::singleton().initialize();
#endif
setTerminationTimeout(parameters.terminationTimeout);
resetPlugInAutoStartOriginHashes(parameters.plugInAutoStartOriginHashes);
for (auto& origin : parameters.plugInAutoStartOrigins)
m_plugInAutoStartOrigins.add(origin);
setMemoryCacheDisabled(parameters.memoryCacheDisabled);
#if ENABLE(SERVICE_CONTROLS)
setEnabledServices(parameters.hasImageServices, parameters.hasSelectionServices, parameters.hasRichContentServices);
#endif
#if ENABLE(REMOTE_INSPECTOR) && PLATFORM(COCOA)
audit_token_t auditToken;
if (parentProcessConnection()->getAuditToken(auditToken)) {
RetainPtr<CFDataRef> auditData = adoptCF(CFDataCreate(nullptr, (const UInt8*)&auditToken, sizeof(auditToken)));
Inspector::RemoteInspector::singleton().setParentProcessInformation(WebCore::presentingApplicationPID(), auditData);
}
#endif
#if ENABLE(NETSCAPE_PLUGIN_API) && PLATFORM(MAC)
resetPluginLoadClientPolicies(parameters.pluginLoadClientPolicies);
#endif
#if ENABLE(GAMEPAD)
GamepadProvider::singleton().setSharedProvider(WebGamepadProvider::singleton());
#endif
#if ENABLE(WEBASSEMBLY)
JSC::Wasm::enableFastMemory();
#endif
}
void WebProcess::ensureNetworkProcessConnection()
{
if (m_networkProcessConnection)
return;
IPC::Attachment encodedConnectionIdentifier;
if (!parentProcessConnection()->sendSync(Messages::WebProcessProxy::GetNetworkProcessConnection(),
Messages::WebProcessProxy::GetNetworkProcessConnection::Reply(encodedConnectionIdentifier), 0))
return;
#if USE(UNIX_DOMAIN_SOCKETS)
IPC::Connection::Identifier connectionIdentifier = encodedConnectionIdentifier.releaseFileDescriptor();
#elif OS(DARWIN)
IPC::Connection::Identifier connectionIdentifier(encodedConnectionIdentifier.port());
#else
ASSERT_NOT_REACHED();
#endif
if (IPC::Connection::identifierIsNull(connectionIdentifier))
return;
m_networkProcessConnection = NetworkProcessConnection::create(connectionIdentifier);
}
void WebProcess::registerURLSchemeAsEmptyDocument(const String& urlScheme)
{
SchemeRegistry::registerURLSchemeAsEmptyDocument(urlScheme);
}
void WebProcess::registerURLSchemeAsSecure(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsSecure(urlScheme);
}
void WebProcess::registerURLSchemeAsBypassingContentSecurityPolicy(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsBypassingContentSecurityPolicy(urlScheme);
}
void WebProcess::setDomainRelaxationForbiddenForURLScheme(const String& urlScheme) const
{
SchemeRegistry::setDomainRelaxationForbiddenForURLScheme(true, urlScheme);
}
void WebProcess::registerURLSchemeAsLocal(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsLocal(urlScheme);
}
void WebProcess::registerURLSchemeAsNoAccess(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsNoAccess(urlScheme);
}
void WebProcess::registerURLSchemeAsDisplayIsolated(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsDisplayIsolated(urlScheme);
}
void WebProcess::registerURLSchemeAsCORSEnabled(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsCORSEnabled(urlScheme);
}
void WebProcess::registerURLSchemeAsAlwaysRevalidated(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsAlwaysRevalidated(urlScheme);
}
void WebProcess::registerURLSchemeAsCachePartitioned(const String& urlScheme) const
{
SchemeRegistry::registerURLSchemeAsCachePartitioned(urlScheme);
}
void WebProcess::setDefaultRequestTimeoutInterval(double timeoutInterval)
{
ResourceRequest::setDefaultTimeoutInterval(timeoutInterval);
}
void WebProcess::setAlwaysUsesComplexTextCodePath(bool alwaysUseComplexText)
{
WebCore::FontCascade::setCodePath(alwaysUseComplexText ? WebCore::FontCascade::Complex : WebCore::FontCascade::Auto);
}
void WebProcess::setShouldUseFontSmoothing(bool useFontSmoothing)
{
WebCore::FontCascade::setShouldUseSmoothing(useFontSmoothing);
}
void WebProcess::userPreferredLanguagesChanged(const Vector<String>& languages) const
{
overrideUserPreferredLanguages(languages);
languageDidChange();
}
void WebProcess::fullKeyboardAccessModeChanged(bool fullKeyboardAccessEnabled)
{
m_fullKeyboardAccessEnabled = fullKeyboardAccessEnabled;
}
void WebProcess::ensurePrivateBrowsingSession(SessionID sessionID)
{
WebFrameNetworkingContext::ensurePrivateBrowsingSession(sessionID);
}
void WebProcess::addWebsiteDataStore(WebsiteDataStoreParameters&& parameters)
{
WebFrameNetworkingContext::ensureWebsiteDataStoreSession(WTFMove(parameters));
}
void WebProcess::destroySession(SessionID sessionID)
{
SessionTracker::destroySession(sessionID);
}
void WebProcess::ensureLegacyPrivateBrowsingSessionInNetworkProcess()
{
networkConnection().connection().send(Messages::NetworkConnectionToWebProcess::EnsureLegacyPrivateBrowsingSession(), 0);
}
#if ENABLE(NETSCAPE_PLUGIN_API)
PluginProcessConnectionManager& WebProcess::pluginProcessConnectionManager()
{
return *m_pluginProcessConnectionManager;
}
#endif
void WebProcess::setCacheModel(uint32_t cm)
{
CacheModel cacheModel = static_cast<CacheModel>(cm);
if (m_hasSetCacheModel && (cacheModel == m_cacheModel))
return;
m_hasSetCacheModel = true;
m_cacheModel = cacheModel;
unsigned cacheTotalCapacity = 0;
unsigned cacheMinDeadCapacity = 0;
unsigned cacheMaxDeadCapacity = 0;
Seconds deadDecodedDataDeletionInterval;
unsigned pageCacheSize = 0;
calculateMemoryCacheSizes(cacheModel, cacheTotalCapacity, cacheMinDeadCapacity, cacheMaxDeadCapacity, deadDecodedDataDeletionInterval, pageCacheSize);
auto& memoryCache = MemoryCache::singleton();
memoryCache.setCapacities(cacheMinDeadCapacity, cacheMaxDeadCapacity, cacheTotalCapacity);
memoryCache.setDeadDecodedDataDeletionInterval(deadDecodedDataDeletionInterval);
PageCache::singleton().setMaxSize(pageCacheSize);
platformSetCacheModel(cacheModel);
}
void WebProcess::clearCachedCredentials()
{
NetworkStorageSession::defaultStorageSession().credentialStorage().clearCredentials();
#if USE(NETWORK_SESSION)
NetworkSession::defaultSession().clearCredentials();
#endif
}
WebPage* WebProcess::focusedWebPage() const
{
for (auto& page : m_pageMap.values()) {
if (page->windowAndWebPageAreFocused())
return page.get();
}
return 0;
}
WebPage* WebProcess::webPage(uint64_t pageID) const
{
return m_pageMap.get(pageID);
}
void WebProcess::createWebPage(uint64_t pageID, WebPageCreationParameters&& parameters)
{
// It is necessary to check for page existence here since during a window.open() (or targeted
// link) the WebPage gets created both in the synchronous handler and through the normal way.
HashMap<uint64_t, RefPtr<WebPage>>::AddResult result = m_pageMap.add(pageID, nullptr);
if (result.isNewEntry) {
ASSERT(!result.iterator->value);
result.iterator->value = WebPage::create(pageID, WTFMove(parameters));
// Balanced by an enableTermination in removeWebPage.
disableTermination();
updateCPULimit();
} else
result.iterator->value->reinitializeWebPage(WTFMove(parameters));
ASSERT(result.iterator->value);
}
void WebProcess::removeWebPage(uint64_t pageID)
{
ASSERT(m_pageMap.contains(pageID));
pageWillLeaveWindow(pageID);
m_pageMap.remove(pageID);
enableTermination();
updateCPULimit();
}
bool WebProcess::shouldTerminate()
{
ASSERT(m_pageMap.isEmpty());
// FIXME: the ShouldTerminate message should also send termination parameters, such as any session cookies that need to be preserved.
bool shouldTerminate = false;
if (parentProcessConnection()->sendSync(Messages::WebProcessProxy::ShouldTerminate(), Messages::WebProcessProxy::ShouldTerminate::Reply(shouldTerminate), 0)
&& !shouldTerminate)
return false;
return true;
}
void WebProcess::terminate()
{
#ifndef NDEBUG
GCController::singleton().garbageCollectNow();
FontCache::singleton().invalidate();
MemoryCache::singleton().setDisabled(true);
#endif
m_webConnection->invalidate();
m_webConnection = nullptr;
platformTerminate();
ChildProcess::terminate();
}
void WebProcess::didReceiveSyncMessage(IPC::Connection& connection, IPC::Decoder& decoder, std::unique_ptr<IPC::Encoder>& replyEncoder)
{
if (messageReceiverMap().dispatchSyncMessage(connection, decoder, replyEncoder))
return;
didReceiveSyncWebProcessMessage(connection, decoder, replyEncoder);
}
void WebProcess::didReceiveMessage(IPC::Connection& connection, IPC::Decoder& decoder)
{
if (messageReceiverMap().dispatchMessage(connection, decoder))
return;
if (decoder.messageReceiverName() == Messages::WebProcess::messageReceiverName()) {
didReceiveWebProcessMessage(connection, decoder);
return;
}
if (decoder.messageReceiverName() == Messages::ChildProcess::messageReceiverName()) {
ChildProcess::didReceiveMessage(connection, decoder);
return;
}
LOG_ERROR("Unhandled web process message '%s:%s'", decoder.messageReceiverName().toString().data(), decoder.messageName().toString().data());
}
void WebProcess::didClose(IPC::Connection&)
{
#ifndef NDEBUG
// Close all the live pages.
Vector<RefPtr<WebPage>> pages;
copyValuesToVector(m_pageMap, pages);
for (auto& page : pages)
page->close();
pages.clear();
GCController::singleton().garbageCollectSoon();
FontCache::singleton().invalidate();
MemoryCache::singleton().setDisabled(true);
#endif
#if ENABLE(VIDEO)
// FIXME(146657): This explicit media stop command should not be necessary
if (auto* platformMediaSessionManager = PlatformMediaSessionManager::sharedManagerIfExists())
platformMediaSessionManager->stopAllMediaPlaybackForProcess();
#endif
// The UI process closed this connection, shut down.
stopRunLoop();
}
WebFrame* WebProcess::webFrame(uint64_t frameID) const
{
return m_frameMap.get(frameID);
}
void WebProcess::addWebFrame(uint64_t frameID, WebFrame* frame)
{
m_frameMap.set(frameID, frame);
}
void WebProcess::removeWebFrame(uint64_t frameID)
{
m_frameMap.remove(frameID);
// We can end up here after our connection has closed when WebCore's frame life-support timer
// fires when the application is shutting down. There's no need (and no way) to update the UI
// process in this case.
if (!parentProcessConnection())
return;
parentProcessConnection()->send(Messages::WebProcessProxy::DidDestroyFrame(frameID), 0);
}
WebPageGroupProxy* WebProcess::webPageGroup(PageGroup* pageGroup)
{
for (auto& page : m_pageGroupMap.values()) {
if (page->corePageGroup() == pageGroup)
return page.get();
}
return 0;
}
WebPageGroupProxy* WebProcess::webPageGroup(uint64_t pageGroupID)
{
return m_pageGroupMap.get(pageGroupID);
}
WebPageGroupProxy* WebProcess::webPageGroup(const WebPageGroupData& pageGroupData)
{
auto result = m_pageGroupMap.add(pageGroupData.pageGroupID, nullptr);
if (result.isNewEntry) {
ASSERT(!result.iterator->value);
result.iterator->value = WebPageGroupProxy::create(pageGroupData);
}
return result.iterator->value.get();
}
static uint64_t nextUserGestureTokenIdentifier()
{
static uint64_t identifier = 1;
return identifier++;
}
uint64_t WebProcess::userGestureTokenIdentifier(RefPtr<UserGestureToken> token)
{
if (!token || !token->processingUserGesture())
return 0;
auto result = m_userGestureTokens.ensure(token.get(), [] { return nextUserGestureTokenIdentifier(); });
if (result.isNewEntry) {
result.iterator->key->addDestructionObserver([] (UserGestureToken& tokenBeingDestroyed) {
WebProcess::singleton().userGestureTokenDestroyed(tokenBeingDestroyed);
});
}
return result.iterator->value;
}
void WebProcess::userGestureTokenDestroyed(UserGestureToken& token)
{
auto identifier = m_userGestureTokens.take(&token);
parentProcessConnection()->send(Messages::WebProcessProxy::DidDestroyUserGestureToken(identifier), 0);
}
void WebProcess::clearResourceCaches(ResourceCachesToClear resourceCachesToClear)
{
// Toggling the cache model like this forces the cache to evict all its in-memory resources.
// FIXME: We need a better way to do this.
CacheModel cacheModel = m_cacheModel;
setCacheModel(CacheModelDocumentViewer);
setCacheModel(cacheModel);
MemoryCache::singleton().evictResources();
// Empty the cross-origin preflight cache.
CrossOriginPreflightResultCache::singleton().empty();
}
static inline void addCaseFoldedCharacters(StringHasher& hasher, const String& string)
{
if (string.isEmpty())
return;
if (string.is8Bit()) {
hasher.addCharacters<LChar, ASCIICaseInsensitiveHash::foldCase<LChar>>(string.characters8(), string.length());
return;
}
hasher.addCharacters<UChar, ASCIICaseInsensitiveHash::foldCase<UChar>>(string.characters16(), string.length());
}
static unsigned hashForPlugInOrigin(const String& pageOrigin, const String& pluginOrigin, const String& mimeType)
{
// We want to avoid concatenating the strings and then taking the hash, since that could lead to an expensive conversion.
// We also want to avoid using the hash() function in StringImpl or ASCIICaseInsensitiveHash because that masks out bits for the use of flags.
StringHasher hasher;
addCaseFoldedCharacters(hasher, pageOrigin);
hasher.addCharacter(0);
addCaseFoldedCharacters(hasher, pluginOrigin);
hasher.addCharacter(0);
addCaseFoldedCharacters(hasher, mimeType);
return hasher.hash();
}
bool WebProcess::isPlugInAutoStartOriginHash(unsigned plugInOriginHash, SessionID sessionID)
{
HashMap<WebCore::SessionID, HashMap<unsigned, double>>::const_iterator sessionIterator = m_plugInAutoStartOriginHashes.find(sessionID);
HashMap<unsigned, double>::const_iterator it;
bool contains = false;
if (sessionIterator != m_plugInAutoStartOriginHashes.end()) {
it = sessionIterator->value.find(plugInOriginHash);
contains = it != sessionIterator->value.end();
}
if (!contains) {
sessionIterator = m_plugInAutoStartOriginHashes.find(SessionID::defaultSessionID());
it = sessionIterator->value.find(plugInOriginHash);
if (it == sessionIterator->value.end())
return false;
}
return currentTime() < it->value;
}
bool WebProcess::shouldPlugInAutoStartFromOrigin(WebPage& webPage, const String& pageOrigin, const String& pluginOrigin, const String& mimeType)
{
if (!pluginOrigin.isEmpty() && m_plugInAutoStartOrigins.contains(pluginOrigin))
return true;
#ifdef ENABLE_PRIMARY_SNAPSHOTTED_PLUGIN_HEURISTIC
// The plugin wasn't in the general whitelist, so check if it similar to the primary plugin for the page (if we've found one).
if (webPage.matchesPrimaryPlugIn(pageOrigin, pluginOrigin, mimeType))
return true;
#else
UNUSED_PARAM(webPage);
#endif
// Lastly check against the more explicit hash list.
return isPlugInAutoStartOriginHash(hashForPlugInOrigin(pageOrigin, pluginOrigin, mimeType), webPage.sessionID());
}
void WebProcess::plugInDidStartFromOrigin(const String& pageOrigin, const String& pluginOrigin, const String& mimeType, SessionID sessionID)
{
if (pageOrigin.isEmpty()) {
LOG(Plugins, "Not adding empty page origin");
return;
}
unsigned plugInOriginHash = hashForPlugInOrigin(pageOrigin, pluginOrigin, mimeType);
if (isPlugInAutoStartOriginHash(plugInOriginHash, sessionID)) {
LOG(Plugins, "Hash %x already exists as auto-start origin (request for %s)", plugInOriginHash, pageOrigin.utf8().data());
return;
}
// We might attempt to start another plugin before the didAddPlugInAutoStartOrigin message
// comes back from the parent process. Temporarily add this hash to the list with a thirty
// second timeout. That way, even if the parent decides not to add it, we'll only be
// incorrect for a little while.
m_plugInAutoStartOriginHashes.add(sessionID, HashMap<unsigned, double>()).iterator->value.set(plugInOriginHash, currentTime() + 30 * 1000);
parentProcessConnection()->send(Messages::WebProcessPool::AddPlugInAutoStartOriginHash(pageOrigin, plugInOriginHash, sessionID), 0);
}
void WebProcess::didAddPlugInAutoStartOriginHash(unsigned plugInOriginHash, double expirationTime, SessionID sessionID)
{
// When called, some web process (which also might be this one) added the origin for auto-starting,
// or received user interaction.
// Set the bit to avoid having redundantly call into the UI process upon user interaction.
m_plugInAutoStartOriginHashes.add(sessionID, HashMap<unsigned, double>()).iterator->value.set(plugInOriginHash, expirationTime);
}
void WebProcess::resetPlugInAutoStartOriginDefaultHashes(const HashMap<unsigned, double>& hashes)
{
m_plugInAutoStartOriginHashes.clear();
m_plugInAutoStartOriginHashes.add(SessionID::defaultSessionID(), HashMap<unsigned, double>()).iterator->value.swap(const_cast<HashMap<unsigned, double>&>(hashes));
}
void WebProcess::resetPlugInAutoStartOriginHashes(const HashMap<SessionID, HashMap<unsigned, double>>& hashes)
{
m_plugInAutoStartOriginHashes.swap(const_cast<HashMap<SessionID, HashMap<unsigned, double>>&>(hashes));
}
void WebProcess::plugInDidReceiveUserInteraction(const String& pageOrigin, const String& pluginOrigin, const String& mimeType, SessionID sessionID)
{
if (pageOrigin.isEmpty())
return;
unsigned plugInOriginHash = hashForPlugInOrigin(pageOrigin, pluginOrigin, mimeType);
if (!plugInOriginHash)
return;
HashMap<WebCore::SessionID, HashMap<unsigned, double>>::const_iterator sessionIterator = m_plugInAutoStartOriginHashes.find(sessionID);
HashMap<unsigned, double>::const_iterator it;
bool contains = false;
if (sessionIterator != m_plugInAutoStartOriginHashes.end()) {
it = sessionIterator->value.find(plugInOriginHash);
contains = it != sessionIterator->value.end();
}
if (!contains) {
sessionIterator = m_plugInAutoStartOriginHashes.find(SessionID::defaultSessionID());
it = sessionIterator->value.find(plugInOriginHash);
if (it == sessionIterator->value.end())
return;
}
if (it->value - currentTime() > plugInAutoStartExpirationTimeUpdateThreshold)
return;
parentProcessConnection()->send(Messages::WebProcessPool::PlugInDidReceiveUserInteraction(plugInOriginHash, sessionID), 0);
}
void WebProcess::setPluginLoadClientPolicy(uint8_t policy, const String& host, const String& bundleIdentifier, const String& versionString)
{
#if ENABLE(NETSCAPE_PLUGIN_API) && PLATFORM(MAC)
WebPluginInfoProvider::singleton().setPluginLoadClientPolicy(static_cast<PluginLoadClientPolicy>(policy), host, bundleIdentifier, versionString);
#endif
}
void WebProcess::resetPluginLoadClientPolicies(const HashMap<WTF::String, HashMap<WTF::String, HashMap<WTF::String, uint8_t>>>& pluginLoadClientPolicies)
{
#if ENABLE(NETSCAPE_PLUGIN_API) && PLATFORM(MAC)
clearPluginClientPolicies();
for (auto& hostPair : pluginLoadClientPolicies) {
for (auto& bundleIdentifierPair : hostPair.value) {
for (auto& versionPair : bundleIdentifierPair.value)
WebPluginInfoProvider::singleton().setPluginLoadClientPolicy(static_cast<PluginLoadClientPolicy>(versionPair.value), hostPair.key, bundleIdentifierPair.key, versionPair.key);
}
}
#endif
}
void WebProcess::clearPluginClientPolicies()
{
#if ENABLE(NETSCAPE_PLUGIN_API) && PLATFORM(MAC)
WebPluginInfoProvider::singleton().clearPluginClientPolicies();
#endif
}
void WebProcess::refreshPlugins()
{
#if ENABLE(NETSCAPE_PLUGIN_API)
WebPluginInfoProvider::singleton().refresh(false);
#endif
}
static void fromCountedSetToHashMap(TypeCountSet* countedSet, HashMap<String, uint64_t>& map)
{
TypeCountSet::const_iterator end = countedSet->end();
for (TypeCountSet::const_iterator it = countedSet->begin(); it != end; ++it)
map.set(it->key, it->value);
}
static void getWebCoreMemoryCacheStatistics(Vector<HashMap<String, uint64_t>>& result)
{
String imagesString(ASCIILiteral("Images"));
String cssString(ASCIILiteral("CSS"));
String xslString(ASCIILiteral("XSL"));
String javaScriptString(ASCIILiteral("JavaScript"));
MemoryCache::Statistics memoryCacheStatistics = MemoryCache::singleton().getStatistics();
HashMap<String, uint64_t> counts;
counts.set(imagesString, memoryCacheStatistics.images.count);
counts.set(cssString, memoryCacheStatistics.cssStyleSheets.count);
counts.set(xslString, memoryCacheStatistics.xslStyleSheets.count);
counts.set(javaScriptString, memoryCacheStatistics.scripts.count);
result.append(counts);
HashMap<String, uint64_t> sizes;
sizes.set(imagesString, memoryCacheStatistics.images.size);
sizes.set(cssString, memoryCacheStatistics.cssStyleSheets.size);
sizes.set(xslString, memoryCacheStatistics.xslStyleSheets.size);
sizes.set(javaScriptString, memoryCacheStatistics.scripts.size);
result.append(sizes);
HashMap<String, uint64_t> liveSizes;
liveSizes.set(imagesString, memoryCacheStatistics.images.liveSize);
liveSizes.set(cssString, memoryCacheStatistics.cssStyleSheets.liveSize);
liveSizes.set(xslString, memoryCacheStatistics.xslStyleSheets.liveSize);
liveSizes.set(javaScriptString, memoryCacheStatistics.scripts.liveSize);
result.append(liveSizes);
HashMap<String, uint64_t> decodedSizes;
decodedSizes.set(imagesString, memoryCacheStatistics.images.decodedSize);
decodedSizes.set(cssString, memoryCacheStatistics.cssStyleSheets.decodedSize);
decodedSizes.set(xslString, memoryCacheStatistics.xslStyleSheets.decodedSize);
decodedSizes.set(javaScriptString, memoryCacheStatistics.scripts.decodedSize);
result.append(decodedSizes);
}
void WebProcess::getWebCoreStatistics(uint64_t callbackID)
{
StatisticsData data;
// Gather JavaScript statistics.
{
JSLockHolder lock(commonVM());
data.statisticsNumbers.set(ASCIILiteral("JavaScriptObjectsCount"), commonVM().heap.objectCount());
data.statisticsNumbers.set(ASCIILiteral("JavaScriptGlobalObjectsCount"), commonVM().heap.globalObjectCount());
data.statisticsNumbers.set(ASCIILiteral("JavaScriptProtectedObjectsCount"), commonVM().heap.protectedObjectCount());
data.statisticsNumbers.set(ASCIILiteral("JavaScriptProtectedGlobalObjectsCount"), commonVM().heap.protectedGlobalObjectCount());
std::unique_ptr<TypeCountSet> protectedObjectTypeCounts(commonVM().heap.protectedObjectTypeCounts());
fromCountedSetToHashMap(protectedObjectTypeCounts.get(), data.javaScriptProtectedObjectTypeCounts);
std::unique_ptr<TypeCountSet> objectTypeCounts(commonVM().heap.objectTypeCounts());
fromCountedSetToHashMap(objectTypeCounts.get(), data.javaScriptObjectTypeCounts);