1/* 2 * Copyright (C) 2010 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#import "config.h" 27#import "WebProcess.h" 28 29#import "CustomProtocolManager.h" 30#import "SandboxExtension.h" 31#import "SandboxInitializationParameters.h" 32#import "WKFullKeyboardAccessWatcher.h" 33#import "WebFrame.h" 34#import "WebInspector.h" 35#import "WebPage.h" 36#import "WebProcessCreationParameters.h" 37#import "WebProcessProxyMessages.h" 38#import <WebCore/AXObjectCache.h> 39#import <WebCore/FileSystem.h> 40#import <WebCore/Font.h> 41#import <WebCore/LocalizedStrings.h> 42#import <WebCore/MemoryCache.h> 43#import <WebCore/PageCache.h> 44#import <WebCore/WebCoreNSURLExtras.h> 45#import <WebKitSystemInterface.h> 46#import <algorithm> 47#import <dispatch/dispatch.h> 48#import <mach/host_info.h> 49#import <mach/mach.h> 50#import <mach/mach_error.h> 51#import <objc/runtime.h> 52#import <stdio.h> 53 54#if USE(SECURITY_FRAMEWORK) 55#import "SecItemShim.h" 56#endif 57 58using namespace WebCore; 59 60const CFStringRef kLSActivePageUserVisibleOriginsKey = CFSTR("LSActivePageUserVisibleOriginsKey"); 61 62namespace WebKit { 63 64static uint64_t memorySize() 65{ 66 static host_basic_info_data_t hostInfo; 67 68 static dispatch_once_t once; 69 dispatch_once(&once, ^() { 70 mach_port_t host = mach_host_self(); 71 mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT; 72 kern_return_t r = host_info(host, HOST_BASIC_INFO, (host_info_t)&hostInfo, &count); 73 mach_port_deallocate(mach_task_self(), host); 74 75 if (r != KERN_SUCCESS) 76 LOG_ERROR("%s : host_info(%d) : %s.\n", __FUNCTION__, r, mach_error_string(r)); 77 }); 78 79 return hostInfo.max_mem; 80} 81 82static uint64_t volumeFreeSize(NSString *path) 83{ 84 NSDictionary *fileSystemAttributesDictionary = [[NSFileManager defaultManager] attributesOfFileSystemForPath:path error:NULL]; 85 return [[fileSystemAttributesDictionary objectForKey:NSFileSystemFreeSize] unsignedLongLongValue]; 86} 87 88void WebProcess::platformSetCacheModel(CacheModel cacheModel) 89{ 90 RetainPtr<NSString> nsurlCacheDirectory = adoptNS((NSString *)WKCopyFoundationCacheDirectory()); 91 if (!nsurlCacheDirectory) 92 nsurlCacheDirectory = NSHomeDirectory(); 93 94 // As a fudge factor, use 1000 instead of 1024, in case the reported byte 95 // count doesn't align exactly to a megabyte boundary. 96 uint64_t memSize = memorySize() / 1024 / 1000; 97 uint64_t diskFreeSize = volumeFreeSize(nsurlCacheDirectory.get()) / 1024 / 1000; 98 99 unsigned cacheTotalCapacity = 0; 100 unsigned cacheMinDeadCapacity = 0; 101 unsigned cacheMaxDeadCapacity = 0; 102 double deadDecodedDataDeletionInterval = 0; 103 unsigned pageCacheCapacity = 0; 104 unsigned long urlCacheMemoryCapacity = 0; 105 unsigned long urlCacheDiskCapacity = 0; 106 107 calculateCacheSizes(cacheModel, memSize, diskFreeSize, 108 cacheTotalCapacity, cacheMinDeadCapacity, cacheMaxDeadCapacity, deadDecodedDataDeletionInterval, 109 pageCacheCapacity, urlCacheMemoryCapacity, urlCacheDiskCapacity); 110 111 112 memoryCache()->setCapacities(cacheMinDeadCapacity, cacheMaxDeadCapacity, cacheTotalCapacity); 113 memoryCache()->setDeadDecodedDataDeletionInterval(deadDecodedDataDeletionInterval); 114 pageCache()->setCapacity(pageCacheCapacity); 115 116 NSURLCache *nsurlCache = [NSURLCache sharedURLCache]; 117 118#if ENABLE(NETWORK_PROCESS) 119 // FIXME: Once there is no loading being done in the WebProcess, we should remove this, 120 // as calling [NSURLCache sharedURLCache] initializes the cache, which we would rather not do. 121 if (m_usesNetworkProcess) { 122 [nsurlCache setMemoryCapacity:0]; 123 [nsurlCache setDiskCapacity:0]; 124 return; 125 } 126#endif 127 128 [nsurlCache setMemoryCapacity:urlCacheMemoryCapacity]; 129 [nsurlCache setDiskCapacity:max<unsigned long>(urlCacheDiskCapacity, [nsurlCache diskCapacity])]; // Don't shrink a big disk cache, since that would cause churn. 130} 131 132void WebProcess::platformClearResourceCaches(ResourceCachesToClear cachesToClear) 133{ 134 if (cachesToClear == InMemoryResourceCachesOnly) 135 return; 136 137 // If we're using the network process then it is the only one that needs to clear the disk cache. 138 if (usesNetworkProcess()) 139 return; 140 141 if (!m_clearResourceCachesDispatchGroup) 142 m_clearResourceCachesDispatchGroup = dispatch_group_create(); 143 144 dispatch_group_async(m_clearResourceCachesDispatchGroup, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 145 [[NSURLCache sharedURLCache] removeAllCachedResponses]; 146 }); 147} 148 149static id NSApplicationAccessibilityFocusedUIElement(NSApplication*, SEL) 150{ 151 WebPage* page = WebProcess::shared().focusedWebPage(); 152 if (!page || !page->accessibilityRemoteObject()) 153 return 0; 154 155 return [page->accessibilityRemoteObject() accessibilityFocusedUIElement]; 156} 157 158void WebProcess::platformInitializeWebProcess(const WebProcessCreationParameters& parameters, CoreIPC::MessageDecoder&) 159{ 160 SandboxExtension::consumePermanently(parameters.uiProcessBundleResourcePathExtensionHandle); 161 SandboxExtension::consumePermanently(parameters.localStorageDirectoryExtensionHandle); 162 SandboxExtension::consumePermanently(parameters.databaseDirectoryExtensionHandle); 163 SandboxExtension::consumePermanently(parameters.applicationCacheDirectoryExtensionHandle); 164 SandboxExtension::consumePermanently(parameters.diskCacheDirectoryExtensionHandle); 165 166 // When the network process is enabled, each web process wants a stand-alone 167 // NSURLCache, which it can disable to save memory. 168#if ENABLE(NETWORK_PROCESS) 169 if (!m_usesNetworkProcess) { 170#endif 171 if (!parameters.diskCacheDirectory.isNull()) { 172 [NSURLCache setSharedURLCache:adoptNS([[NSURLCache alloc] 173 initWithMemoryCapacity:parameters.nsURLCacheMemoryCapacity 174 diskCapacity:parameters.nsURLCacheDiskCapacity 175 diskPath:parameters.diskCacheDirectory]).get()]; 176 } 177#if ENABLE(NETWORK_PROCESS) 178 } 179#endif 180 181 m_shouldForceScreenFontSubstitution = parameters.shouldForceScreenFontSubstitution; 182 Font::setDefaultTypesettingFeatures(parameters.shouldEnableKerningAndLigaturesByDefault ? Kerning | Ligatures : 0); 183 184 m_compositingRenderServerPort = parameters.acceleratedCompositingPort.port(); 185 186 m_presenterApplicationPid = parameters.presenterApplicationPid; 187 188 setEnhancedAccessibility(parameters.accessibilityEnhancedUserInterfaceEnabled); 189 190 // rdar://9118639 accessibilityFocusedUIElement in NSApplication defaults to use the keyWindow. Since there's 191 // no window in WK2, NSApplication needs to use the focused page's focused element. 192 Method methodToPatch = class_getInstanceMethod([NSApplication class], @selector(accessibilityFocusedUIElement)); 193 method_setImplementation(methodToPatch, (IMP)NSApplicationAccessibilityFocusedUIElement); 194} 195 196void WebProcess::initializeProcessName(const ChildProcessInitializationParameters& parameters) 197{ 198 NSString *applicationName = [NSString stringWithFormat:WEB_UI_STRING("%@ Web Content", "Visible name of the web process. The argument is the application name."), (NSString *)parameters.uiProcessName]; 199 WKSetVisibleApplicationName((CFStringRef)applicationName); 200} 201 202void WebProcess::platformInitializeProcess(const ChildProcessInitializationParameters&) 203{ 204 WKAXRegisterRemoteApp(); 205 206#if USE(SECURITY_FRAMEWORK) 207 SecItemShim::shared().initialize(this); 208#endif 209} 210 211void WebProcess::stopRunLoop() 212{ 213 ChildProcess::stopNSAppRunLoop(); 214} 215 216void WebProcess::platformTerminate() 217{ 218 if (m_clearResourceCachesDispatchGroup) { 219 dispatch_group_wait(m_clearResourceCachesDispatchGroup, DISPATCH_TIME_FOREVER); 220 dispatch_release(m_clearResourceCachesDispatchGroup); 221 m_clearResourceCachesDispatchGroup = 0; 222 } 223} 224 225void WebProcess::initializeSandbox(const ChildProcessInitializationParameters& parameters, SandboxInitializationParameters& sandboxParameters) 226{ 227 // Need to overide the default, because service has a different bundle ID. 228 NSBundle *webkit2Bundle = [NSBundle bundleForClass:NSClassFromString(@"WKView")]; 229 sandboxParameters.setOverrideSandboxProfilePath([webkit2Bundle pathForResource:@"com.apple.WebProcess" ofType:@"sb"]); 230 231 ChildProcess::initializeSandbox(parameters, sandboxParameters); 232} 233 234void WebProcess::updateActivePages() 235{ 236#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090 237 RetainPtr<CFMutableArrayRef> activePageURLs = adoptCF(CFArrayCreateMutable(0, 0, &kCFTypeArrayCallBacks)); 238 for (const auto& iter: m_pageMap) { 239 WebPage* page = iter.value.get(); 240 WebFrame* mainFrame = page->mainWebFrame(); 241 if (!mainFrame) 242 continue; 243 String mainFrameOriginString; 244 RefPtr<SecurityOrigin> mainFrameOrigin = SecurityOrigin::createFromString(mainFrame->url()); 245 if (!mainFrameOrigin->isUnique()) 246 mainFrameOriginString = mainFrameOrigin->toRawString(); 247 else 248 mainFrameOriginString = KURL(KURL(), mainFrame->url()).protocol() + ':'; // toRawString() is not supposed to work with unique origins, and would just return "://". 249 250 NSURL *originAsNSURL = [NSURL URLWithString:mainFrameOriginString]; 251 // +[NSURL URLWithString:] returns nil when its argument is malformed. It's unclear how we can possibly have a malformed URL here, 252 // but it happens in practice according to <rdar://problem/14173389>. Leaving an assertion in to catch a reproducible case. 253 ASSERT(originAsNSURL); 254 NSString *userVisibleOriginString = originAsNSURL ? userVisibleString(originAsNSURL) : @"(null)"; 255 256 CFArrayAppendValue(activePageURLs.get(), userVisibleOriginString); 257 } 258 WKSetApplicationInformationItem(kLSActivePageUserVisibleOriginsKey, activePageURLs.get()); 259#endif 260} 261 262} // namespace WebKit 263