| /* |
| * Copyright (C) 2006 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. ``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. |
| */ |
| |
| #import "WebCache.h" |
| |
| #import "NetworkStorageSessionMap.h" |
| #import "WebApplicationCacheInternal.h" |
| #import "WebNSObjectExtras.h" |
| #import "WebPreferences.h" |
| #import "WebView.h" |
| #import "WebViewInternal.h" |
| #import <JavaScriptCore/InitializeThreading.h> |
| #import <WebCore/ApplicationCacheStorage.h> |
| #import <WebCore/CookieJar.h> |
| #import <WebCore/CredentialStorage.h> |
| #import <WebCore/CrossOriginPreflightResultCache.h> |
| #import <WebCore/Document.h> |
| #import <WebCore/MemoryCache.h> |
| #import <WebCore/NetworkStorageSession.h> |
| #import <WebCore/StorageSessionProvider.h> |
| #import <WebCore/WebCoreJITOperations.h> |
| #import <wtf/MainThread.h> |
| #import <wtf/RunLoop.h> |
| |
| #if PLATFORM(IOS_FAMILY) |
| #import "WebFrameInternal.h" |
| #import <WebCore/BackForwardCache.h> |
| #import <WebCore/CachedImage.h> |
| #import <WebCore/Frame.h> |
| #import <WebCore/WebCoreThreadRun.h> |
| #endif |
| |
| class DefaultStorageSessionProvider : public WebCore::StorageSessionProvider { |
| WebCore::NetworkStorageSession* storageSession() const final |
| { |
| return &NetworkStorageSessionMap::defaultStorageSession(); |
| } |
| }; |
| |
| @implementation WebCache |
| |
| + (void)initialize |
| { |
| #if !PLATFORM(IOS_FAMILY) |
| JSC::initialize(); |
| WTF::initializeMainThread(); |
| WebCore::populateJITOperations(); |
| #endif |
| } |
| |
| + (NSArray *)statistics |
| { |
| auto s = WebCore::MemoryCache::singleton().getStatistics(); |
| return @[ |
| @{ |
| @"Images": @(s.images.count), |
| @"CSS": @(s.cssStyleSheets.count), |
| #if ENABLE(XSLT) |
| @"XSL": @(s.xslStyleSheets.count), |
| #else |
| @"XSL": @(0), |
| #endif |
| @"JavaScript": @(s.scripts.count), |
| }, |
| @{ |
| @"Images": @(s.images.size), |
| @"CSS": @(s.cssStyleSheets.size), |
| #if ENABLE(XSLT) |
| @"XSL": @(s.xslStyleSheets.size), |
| #else |
| @"XSL": @(0), |
| #endif |
| @"JavaScript": @(s.scripts.size), |
| }, |
| @{ |
| @"Images": @(s.images.liveSize), |
| @"CSS": @(s.cssStyleSheets.liveSize), |
| #if ENABLE(XSLT) |
| @"XSL": @(s.xslStyleSheets.liveSize), |
| #else |
| @"XSL": @(0), |
| #endif |
| @"JavaScript": @(s.scripts.liveSize), |
| }, |
| @{ |
| @"Images": @(s.images.decodedSize), |
| @"CSS": @(s.cssStyleSheets.decodedSize), |
| #if ENABLE(XSLT) |
| @"XSL": @(s.xslStyleSheets.decodedSize), |
| #else |
| @"XSL": @(0), |
| #endif |
| @"JavaScript": @(s.scripts.decodedSize), |
| }, |
| ]; |
| } |
| |
| + (void)empty |
| { |
| // Toggling the cache model like this forces the cache to evict all its in-memory resources. |
| WebCacheModel cacheModel = [WebView _cacheModel]; |
| [WebView _setCacheModel:WebCacheModelDocumentViewer]; |
| [WebView _setCacheModel:cacheModel]; |
| |
| // Empty the application cache. |
| webApplicationCacheStorage().empty(); |
| |
| // Empty the Cross-Origin Preflight cache |
| WebCore::CrossOriginPreflightResultCache::singleton().clear(); |
| } |
| |
| #if PLATFORM(IOS_FAMILY) |
| |
| + (void)emptyInMemoryResources |
| { |
| // This method gets called from MobileSafari after it calls [WebView |
| // _close]. [WebView _close] schedules its work on the WebThread. So we |
| // schedule this method on the WebThread as well so as to pick up all the |
| // dead resources left behind after closing the WebViews |
| WebThreadRun(^{ |
| // Toggling the cache model like this forces the cache to evict all its in-memory resources. |
| WebCacheModel cacheModel = [WebView _cacheModel]; |
| [WebView _setCacheModel:WebCacheModelDocumentViewer]; |
| [WebView _setCacheModel:cacheModel]; |
| |
| WebCore::MemoryCache::singleton().pruneLiveResources(true); |
| }); |
| } |
| |
| + (void)sizeOfDeadResources:(int *)resources |
| { |
| WebCore::MemoryCache::Statistics stats = WebCore::MemoryCache::singleton().getStatistics(); |
| if (resources) { |
| *resources = (stats.images.size - stats.images.liveSize) |
| + (stats.cssStyleSheets.size - stats.cssStyleSheets.liveSize) |
| #if ENABLE(XSLT) |
| + (stats.xslStyleSheets.size - stats.xslStyleSheets.liveSize) |
| #endif |
| + (stats.scripts.size - stats.scripts.liveSize); |
| } |
| } |
| |
| + (CGImageRef)imageForURL:(NSURL *)url |
| { |
| if (!url) |
| return nullptr; |
| |
| WebCore::ResourceRequest request(url); |
| WebCore::CachedResource* cachedResource = WebCore::MemoryCache::singleton().resourceForRequest(request, PAL::SessionID::defaultSessionID()); |
| if (!is<WebCore::CachedImage>(cachedResource)) |
| return nullptr; |
| |
| auto& cachedImage = downcast<WebCore::CachedImage>(*cachedResource); |
| if (!cachedImage.hasImage()) |
| return nullptr; |
| |
| auto nativeImage = cachedImage.image()->nativeImage(); |
| if (!nativeImage) |
| return nullptr; |
| |
| return nativeImage->platformImage().get(); |
| } |
| |
| #endif // PLATFORM(IOS_FAMILY) |
| |
| + (void)setDisabled:(BOOL)disabled |
| { |
| if (!pthread_main_np()) |
| return [[self _webkit_invokeOnMainThread] setDisabled:disabled]; |
| |
| WebCore::MemoryCache::singleton().setDisabled(disabled); |
| } |
| |
| + (BOOL)isDisabled |
| { |
| return WebCore::MemoryCache::singleton().disabled(); |
| } |
| |
| + (void)clearCachedCredentials |
| { |
| [WebView _makeAllWebViewsPerformSelector:@selector(_clearCredentials)]; |
| NetworkStorageSessionMap::defaultStorageSession().credentialStorage().clearCredentials(); |
| } |
| |
| @end |