/*
* Copyright (C) 2010 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.
*/
#import "config.h"
#import "WebProcess.h"
#import "CustomProtocolManager.h"
#import "SandboxExtension.h"
#import "SandboxInitializationParameters.h"
#import "WKFullKeyboardAccessWatcher.h"
#import "WebFrame.h"
#import "WebInspector.h"
#import "WebPage.h"
#import "WebProcessCreationParameters.h"
#import "WebProcessProxyMessages.h"
#import <WebCore/AXObjectCache.h>
#import <WebCore/FileSystem.h>
#import <WebCore/Font.h>
#import <WebCore/LocalizedStrings.h>
#import <WebCore/MemoryCache.h>
#import <WebCore/PageCache.h>
#import <WebCore/WebCoreNSURLExtras.h>
#import <WebKitSystemInterface.h>
#import <algorithm>
#import <dispatch/dispatch.h>
#import <mach/host_info.h>
#import <mach/mach.h>
#import <mach/mach_error.h>
#import <objc/runtime.h>
#import <stdio.h>
#if USE(SECURITY_FRAMEWORK)
#import "SecItemShim.h"
#endif
using namespace WebCore;
const CFStringRef kLSActivePageUserVisibleOriginsKey = CFSTR("LSActivePageUserVisibleOriginsKey");
namespace WebKit {
static uint64_t memorySize()
{
static host_basic_info_data_t hostInfo;
static dispatch_once_t once;
dispatch_once(&once, ^() {
mach_port_t host = mach_host_self();
mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
kern_return_t r = host_info(host, HOST_BASIC_INFO, (host_info_t)&hostInfo, &count);
mach_port_deallocate(mach_task_self(), host);
if (r != KERN_SUCCESS)
LOG_ERROR("%s : host_info(%d) : %s.\n", __FUNCTION__, r, mach_error_string(r));
});
return hostInfo.max_mem;
}
static uint64_t volumeFreeSize(NSString *path)
{
NSDictionary *fileSystemAttributesDictionary = [[NSFileManager defaultManager] attributesOfFileSystemForPath:path error:NULL];
return [[fileSystemAttributesDictionary objectForKey:NSFileSystemFreeSize] unsignedLongLongValue];
}
void WebProcess::platformSetCacheModel(CacheModel cacheModel)
{
RetainPtr<NSString> nsurlCacheDirectory = adoptNS((NSString *)WKCopyFoundationCacheDirectory());
if (!nsurlCacheDirectory)
nsurlCacheDirectory = NSHomeDirectory();
// As a fudge factor, use 1000 instead of 1024, in case the reported byte
// count doesn't align exactly to a megabyte boundary.
uint64_t memSize = memorySize() / 1024 / 1000;
uint64_t diskFreeSize = volumeFreeSize(nsurlCacheDirectory.get()) / 1024 / 1000;
unsigned cacheTotalCapacity = 0;
unsigned cacheMinDeadCapacity = 0;
unsigned cacheMaxDeadCapacity = 0;
double deadDecodedDataDeletionInterval = 0;
unsigned pageCacheCapacity = 0;
unsigned long urlCacheMemoryCapacity = 0;
unsigned long urlCacheDiskCapacity = 0;
calculateCacheSizes(cacheModel, memSize, diskFreeSize,
cacheTotalCapacity, cacheMinDeadCapacity, cacheMaxDeadCapacity, deadDecodedDataDeletionInterval,
pageCacheCapacity, urlCacheMemoryCapacity, urlCacheDiskCapacity);
memoryCache()->setCapacities(cacheMinDeadCapacity, cacheMaxDeadCapacity, cacheTotalCapacity);
memoryCache()->setDeadDecodedDataDeletionInterval(deadDecodedDataDeletionInterval);
pageCache()->setCapacity(pageCacheCapacity);
NSURLCache *nsurlCache = [NSURLCache sharedURLCache];
#if ENABLE(NETWORK_PROCESS)
// FIXME: Once there is no loading being done in the WebProcess, we should remove this,
// as calling [NSURLCache sharedURLCache] initializes the cache, which we would rather not do.
if (m_usesNetworkProcess) {
[nsurlCache setMemoryCapacity:0];
[nsurlCache setDiskCapacity:0];
return;
}
#endif
[nsurlCache setMemoryCapacity:urlCacheMemoryCapacity];
[nsurlCache setDiskCapacity:max<unsigned long>(urlCacheDiskCapacity, [nsurlCache diskCapacity])]; // Don't shrink a big disk cache, since that would cause churn.
}
void WebProcess::platformClearResourceCaches(ResourceCachesToClear cachesToClear)
{
if (cachesToClear == InMemoryResourceCachesOnly)
return;
// If we're using the network process then it is the only one that needs to clear the disk cache.
if (usesNetworkProcess())
return;
if (!m_clearResourceCachesDispatchGroup)
m_clearResourceCachesDispatchGroup = dispatch_group_create();
dispatch_group_async(m_clearResourceCachesDispatchGroup, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
[[NSURLCache sharedURLCache] removeAllCachedResponses];
});
}
static id NSApplicationAccessibilityFocusedUIElement(NSApplication*, SEL)
{
WebPage* page = WebProcess::shared().focusedWebPage();
if (!page || !page->accessibilityRemoteObject())
return 0;
return [page->accessibilityRemoteObject() accessibilityFocusedUIElement];
}
void WebProcess::platformInitializeWebProcess(const WebProcessCreationParameters& parameters, CoreIPC::MessageDecoder&)
{
SandboxExtension::consumePermanently(parameters.uiProcessBundleResourcePathExtensionHandle);
SandboxExtension::consumePermanently(parameters.localStorageDirectoryExtensionHandle);
SandboxExtension::consumePermanently(parameters.databaseDirectoryExtensionHandle);
SandboxExtension::consumePermanently(parameters.applicationCacheDirectoryExtensionHandle);
SandboxExtension::consumePermanently(parameters.diskCacheDirectoryExtensionHandle);
// When the network process is enabled, each web process wants a stand-alone
// NSURLCache, which it can disable to save memory.
#if ENABLE(NETWORK_PROCESS)
if (!m_usesNetworkProcess) {
#endif
if (!parameters.diskCacheDirectory.isNull()) {
[NSURLCache setSharedURLCache:adoptNS([[NSURLCache alloc]
initWithMemoryCapacity:parameters.nsURLCacheMemoryCapacity
diskCapacity:parameters.nsURLCacheDiskCapacity
diskPath:parameters.diskCacheDirectory]).get()];
}
#if ENABLE(NETWORK_PROCESS)
}
#endif
m_shouldForceScreenFontSubstitution = parameters.shouldForceScreenFontSubstitution;
Font::setDefaultTypesettingFeatures(parameters.shouldEnableKerningAndLigaturesByDefault ? Kerning | Ligatures : 0);
m_compositingRenderServerPort = parameters.acceleratedCompositingPort.port();
m_presenterApplicationPid = parameters.presenterApplicationPid;
setEnhancedAccessibility(parameters.accessibilityEnhancedUserInterfaceEnabled);
// rdar://9118639 accessibilityFocusedUIElement in NSApplication defaults to use the keyWindow. Since there's
// no window in WK2, NSApplication needs to use the focused page's focused element.
Method methodToPatch = class_getInstanceMethod([NSApplication class], @selector(accessibilityFocusedUIElement));
method_setImplementation(methodToPatch, (IMP)NSApplicationAccessibilityFocusedUIElement);
}
void WebProcess::initializeProcessName(const ChildProcessInitializationParameters& parameters)
{
NSString *applicationName = [NSString stringWithFormat:WEB_UI_STRING("%@ Web Content", "Visible name of the web process. The argument is the application name."), (NSString *)parameters.uiProcessName];
WKSetVisibleApplicationName((CFStringRef)applicationName);
}
void WebProcess::platformInitializeProcess(const ChildProcessInitializationParameters&)
{
WKAXRegisterRemoteApp();
#if USE(SECURITY_FRAMEWORK)
SecItemShim::shared().initialize(this);
#endif
}
void WebProcess::platformTerminate()
{
if (m_clearResourceCachesDispatchGroup) {
dispatch_group_wait(m_clearResourceCachesDispatchGroup, DISPATCH_TIME_FOREVER);
dispatch_release(m_clearResourceCachesDispatchGroup);
m_clearResourceCachesDispatchGroup = 0;
}
}
void WebProcess::initializeSandbox(const ChildProcessInitializationParameters& parameters, SandboxInitializationParameters& sandboxParameters)
{
// Need to overide the default, because service has a different bundle ID.
NSBundle *webkit2Bundle = [NSBundle bundleForClass:NSClassFromString(@"WKView")];
sandboxParameters.setOverrideSandboxProfilePath([webkit2Bundle pathForResource:@"com.apple.WebProcess" ofType:@"sb"]);
ChildProcess::initializeSandbox(parameters, sandboxParameters);
}
void WebProcess::updateActivePages()
{
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
RetainPtr<CFMutableArrayRef> activePageURLs = adoptCF(CFArrayCreateMutable(0, 0, &kCFTypeArrayCallBacks));
for (const auto& iter: m_pageMap) {
WebPage* page = iter.value.get();
WebFrame* mainFrame = page->mainWebFrame();
if (!mainFrame)
continue;
String mainFrameOriginString;
RefPtr<SecurityOrigin> mainFrameOrigin = SecurityOrigin::createFromString(mainFrame->url());
if (!mainFrameOrigin->isUnique())
mainFrameOriginString = mainFrameOrigin->toRawString();
else
mainFrameOriginString = KURL(KURL(), mainFrame->url()).protocol() + ':'; // toRawString() is not supposed to work with unique origins, and would just return "://".
NSURL *originAsNSURL = [NSURL URLWithString:mainFrameOriginString];
// +[NSURL URLWithString:] returns nil when its argument is malformed. It's unclear how we can possibly have a malformed URL here,
// but it happens in practice according to <rdar://problem/14173389>. Leaving an assertion in to catch a reproducible case.
ASSERT(originAsNSURL);
NSString *userVisibleOriginString = originAsNSURL ? userVisibleString(originAsNSURL) : @"(null)";
CFArrayAppendValue(activePageURLs.get(), userVisibleOriginString);
}
WKSetApplicationInformationItem(kLSActivePageUserVisibleOriginsKey, activePageURLs.get());
#endif
}
} // namespace WebKit