WebContentProcessMain.mm [plain text]
/*
* Copyright (C) 2010, 2011, 2012 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 "ChildProcessEntryPoint.h"
#import "EnvironmentUtilities.h"
#import "EnvironmentVariables.h"
#import "StringUtilities.h"
#import "WKBase.h"
#import "WebProcess.h"
#import <WebCore/ServersSPI.h>
#import <mach/mach_error.h>
#import <spawn.h>
#import <stdio.h>
#import <wtf/RetainPtr.h>
#import <wtf/RunLoop.h>
#import <wtf/text/CString.h>
#import <wtf/text/WTFString.h>
#if PLATFORM(IOS)
#import <WebCore/GraphicsServicesSPI.h>
#import <WebCore/WebCoreThreadSystemInterface.h>
#endif
#if USE(APPKIT)
@interface NSApplication (WebNSApplicationDetails)
-(void)_installAutoreleasePoolsOnCurrentThreadIfNecessary;
@end
#endif
using namespace WebCore;
namespace WebKit {
class WebContentProcessMainDelegate : public ChildProcessMainDelegate {
public:
WebContentProcessMainDelegate(const CommandLine& commandLine)
: ChildProcessMainDelegate(commandLine)
{
}
virtual void doPreInitializationWork() override
{
// Remove the WebProcess and SecItem shims from the DYLD_INSERT_LIBRARIES environment variable so any processes
// spawned by the WebProcess don't try to insert the shims and crash.
EnvironmentUtilities::stripValuesEndingWithString("DYLD_INSERT_LIBRARIES", "/WebProcessShim.dylib");
EnvironmentUtilities::stripValuesEndingWithString("DYLD_INSERT_LIBRARIES", "/SecItemShim.dylib");
#if USE(APPKIT)
// Initialize AppKit.
[NSApplication sharedApplication];
// Installs autorelease pools on the current runloop which prevents memory from accumulating between user events.
// FIXME: Remove when <rdar://problem/8929426> is fixed.
[NSApp _installAutoreleasePoolsOnCurrentThreadIfNecessary];
#endif
#if PLATFORM(IOS)
GSInitialize();
InitWebCoreThreadSystemInterface();
#endif // PLATFORM(IOS)
}
virtual bool getConnectionIdentifier(IPC::Connection::Identifier& identifier) override
{
String clientExecutable = m_commandLine["client-executable"];
if (clientExecutable.isEmpty())
return ChildProcessMainDelegate::getConnectionIdentifier(identifier);
mach_port_name_t publishedService;
mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &publishedService);
mach_port_insert_right(mach_task_self(), publishedService, publishedService, MACH_MSG_TYPE_MAKE_SEND);
// Make it possible to look up.
String serviceName = String::format("com.apple.WebKit.WebProcess-%d", getpid());
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
if (kern_return_t kr = bootstrap_register2(bootstrap_port, const_cast<char*>(serviceName.utf8().data()), publishedService, 0)) {
WTFLogAlways("Failed to register service name \"%s\". %s (%x)\n", serviceName.utf8().data(), mach_error_string(kr), kr);
return false;
}
#pragma clang diagnostic pop
CString command = clientExecutable.utf8();
const char* args[] = { command.data(), 0 };
EnvironmentVariables environmentVariables;
environmentVariables.set(EnvironmentVariables::preexistingProcessServiceNameKey(), serviceName.utf8().data());
environmentVariables.set(EnvironmentVariables::preexistingProcessTypeKey(), m_commandLine["type"].utf8().data());
posix_spawn_file_actions_t fileActions;
posix_spawn_file_actions_init(&fileActions);
posix_spawn_file_actions_addinherit_np(&fileActions, STDIN_FILENO);
posix_spawn_file_actions_addinherit_np(&fileActions, STDOUT_FILENO);
posix_spawn_file_actions_addinherit_np(&fileActions, STDERR_FILENO);
posix_spawnattr_t attributes;
posix_spawnattr_init(&attributes);
posix_spawnattr_setflags(&attributes, POSIX_SPAWN_CLOEXEC_DEFAULT | POSIX_SPAWN_SETPGROUP);
int spawnResult = posix_spawn(0, command.data(), &fileActions, &attributes, const_cast<char**>(args), environmentVariables.environmentPointer());
posix_spawnattr_destroy(&attributes);
posix_spawn_file_actions_destroy(&fileActions);
if (spawnResult)
return false;
mach_msg_empty_rcv_t message;
if (kern_return_t kr = mach_msg(&message.header, MACH_RCV_MSG, 0, sizeof(message), publishedService, MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL)) {
WTFLogAlways("Failed to receive port from the UI process. %s (%x)\n", mach_error_string(kr), kr);
return false;
}
mach_port_mod_refs(mach_task_self(), publishedService, MACH_PORT_RIGHT_RECEIVE, -1);
mach_port_t serverPort = message.header.msgh_remote_port;
mach_port_type_t portType;
kern_return_t kr = mach_port_type(mach_task_self(), serverPort, &portType);
if (kr || !(portType & MACH_PORT_TYPE_SEND)) {
WTFLogAlways("Failed to obtain send right for port received from the UI process.\n");
return false;
}
identifier = serverPort;
return true;
}
virtual bool getClientIdentifier(String& clientIdentifier) override
{
String clientExecutable = m_commandLine["client-executable"];
if (clientExecutable.isEmpty())
return ChildProcessMainDelegate::getClientIdentifier(clientIdentifier);
RetainPtr<NSURL> clientExecutableURL = adoptNS([[NSURL alloc] initFileURLWithPath:nsStringFromWebCoreString(clientExecutable)]);
RetainPtr<CFURLRef> clientBundleURL = adoptCF(WKCopyBundleURLForExecutableURL((CFURLRef)clientExecutableURL.get()));
RetainPtr<NSBundle> clientBundle = adoptNS([[NSBundle alloc] initWithURL:(NSURL *)clientBundleURL.get()]);
clientIdentifier = [clientBundle bundleIdentifier];
if (clientIdentifier.isEmpty())
return false;
return true;
}
virtual bool getClientProcessName(String& clientProcessName) override
{
String clientExecutable = m_commandLine["client-executable"];
if (clientExecutable.isEmpty())
return ChildProcessMainDelegate::getClientProcessName(clientProcessName);
// Conjure up a process name by using everything after the last slash from the client-executable,
// e.g. /Applications/Safari.app/Contents/MacOS/Safari becomes Safari.
size_t lastSlash = clientExecutable.reverseFind('/');
clientProcessName = clientExecutable.substring(lastSlash + 1);
if (clientProcessName.isEmpty())
return false;
return true;
}
virtual void startRunLoop() override
{
#if USE(APPKIT)
ASSERT(NSApp);
[NSApp run];
#else
RunLoop::run();
#endif
}
};
} // namespace WebKit
using namespace WebKit;
extern "C" WK_EXPORT int WebContentProcessMain(int argc, char** argv);
int WebContentProcessMain(int argc, char** argv)
{
return ChildProcessMain<WebProcess, WebContentProcessMainDelegate>(argc, argv);
}