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/*
* 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.
*/
#include "WebProcess.h"
#include "SandboxExtension.h"
#include "WebProcessCreationParameters.h"
#include <WebCore/MemoryCache.h>
#include <WebCore/PageCache.h>
#include <WebKitSystemInterface.h>
#include <algorithm>
#include <dispatch/dispatch.h>
#include <mach/host_info.h>
#include <mach/mach.h>
#include <mach/mach_error.h>
#if ENABLE(WEB_PROCESS_SANDBOX)
#include <sandbox.h>
#include <stdlib.h>
#include <sysexits.h>
#endif
using namespace WebCore;
using namespace std;
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.adoptNS(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];
[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()
{
[[NSURLCache sharedURLCache] removeAllCachedResponses];
}
static void initializeSandbox(const WebProcessCreationParameters& parameters)
{
#if ENABLE(WEB_PROCESS_SANDBOX)
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"DisableSandbox"]) {
fprintf(stderr, "Bypassing sandbox due to DisableSandbox user default.\n");
return;
}
char* errorBuf;
char tmpPath[PATH_MAX];
char tmpRealPath[PATH_MAX];
char cachePath[PATH_MAX];
char cacheRealPath[PATH_MAX];
const char* frameworkPath = [[[[NSBundle bundleForClass:NSClassFromString(@"WKView")] bundlePath] stringByDeletingLastPathComponent] UTF8String];
const char* profilePath = [[[NSBundle mainBundle] pathForResource:@"com.apple.WebProcess" ofType:@"sb"] UTF8String];
if (confstr(_CS_DARWIN_USER_TEMP_DIR, tmpPath, PATH_MAX) <= 0 || !realpath(tmpPath, tmpRealPath))
tmpRealPath[0] = '\0';
if (confstr(_CS_DARWIN_USER_CACHE_DIR, cachePath, PATH_MAX) <= 0 || !realpath(cachePath, cacheRealPath))
cacheRealPath[0] = '\0';
const char* const sandboxParam[] = {
"WEBKIT2_FRAMEWORK_DIR", frameworkPath,
"DARWIN_USER_TEMP_DIR", (const char*)tmpRealPath,
"DARWIN_USER_CACHE_DIR", (const char*)cacheRealPath,
"NSURL_CACHE_DIR", (const char*)parameters.nsURLCachePath.data(),
"UI_PROCESS_BUNDLE_RESOURCE_DIR", (const char*)parameters.uiProcessBundleResourcePath.data(),
NULL
};
if (sandbox_init_with_parameters(profilePath, SANDBOX_NAMED_EXTERNAL, sandboxParam, &errorBuf)) {
fprintf(stderr, "WebProcess: couldn't initialize sandbox profile [%s] with framework path [%s], tmp path [%s], cache path [%s]: %s\n", profilePath, frameworkPath, tmpRealPath, cacheRealPath, errorBuf);
exit(EX_NOPERM);
}
#endif
}
void WebProcess::platformInitializeWebProcess(const WebProcessCreationParameters& parameters, CoreIPC::ArgumentDecoder*)
{
initializeSandbox(parameters);
if (!parameters.parentProcessName.isNull()) {
// FIXME (WebKit2) <rdar://problem/8728860> WebKit2 needs to be localized
NSString *applicationName = [NSString stringWithFormat:@"%@ Web Content", (NSString *)parameters.parentProcessName];
WKSetVisibleApplicationName((CFStringRef)applicationName);
}
if (!parameters.nsURLCachePath.isNull()) {
NSUInteger cacheMemoryCapacity = parameters.nsURLCacheMemoryCapacity;
NSUInteger cacheDiskCapacity = parameters.nsURLCacheDiskCapacity;
NSString *nsCachePath = [[NSFileManager defaultManager] stringWithFileSystemRepresentation:parameters.nsURLCachePath.data() length:parameters.nsURLCachePath.length()];
RetainPtr<NSURLCache> parentProcessURLCache(AdoptNS, [[NSURLCache alloc] initWithMemoryCapacity:cacheMemoryCapacity diskCapacity:cacheDiskCapacity diskPath:nsCachePath]);
[NSURLCache setSharedURLCache:parentProcessURLCache.get()];
}
m_compositingRenderServerPort = parameters.acceleratedCompositingPort.port();
}
void WebProcess::platformShutdown()
{
}
} // namespace WebKit
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