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/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* 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 "config.h"
#include "ProcessLauncher.h"
#include "Connection.h"
#include "ProcessExecutablePath.h"
#include "WebProcess.h"
#include <QDebug>
#include <QLocalServer>
#include <QMetaType>
#include <QProcess>
#include <QString>
#include <QtCore/qglobal.h>
#include <wtf/RunLoop.h>
#include <wtf/text/WTFString.h>
#if defined(Q_OS_UNIX)
#include <errno.h>
#include <fcntl.h>
#include <string>
#include <sys/resource.h>
#include <sys/socket.h>
#include <unistd.h>
#include <wtf/UniStdExtras.h>
#endif
#if defined(Q_OS_LINUX)
#include <signal.h>
#include <sys/prctl.h>
#endif
#if OS(WINDOWS)
#include <windows.h>
#endif
#if ENABLE(SUID_SANDBOX_LINUX)
#include <QCoreApplication>
#endif
#if OS(DARWIN)
#include <mach/mach_init.h>
#include <servers/bootstrap.h>
extern "C" kern_return_t bootstrap_register2(mach_port_t, name_t, mach_port_t, uint64_t);
#endif
// for QNX we need SOCK_DGRAM, see https://bugs.webkit.org/show_bug.cgi?id=95553
#if defined(SOCK_SEQPACKET) && !defined(Q_OS_MACX) && !OS(QNX)
#define SOCKET_TYPE SOCK_SEQPACKET
#else
#define SOCKET_TYPE SOCK_DGRAM
#endif
using namespace WebCore;
namespace WebKit {
class QtWebProcess final : public QProcess {
Q_OBJECT
public:
QtWebProcess(QObject* parent = 0)
: QProcess(parent)
{
}
protected:
void setupChildProcess() final;
};
void QtWebProcess::setupChildProcess()
{
#if defined(Q_OS_LINUX)
#ifndef NDEBUG
if (qgetenv("QT_WEBKIT2_DEBUG") == "1")
return;
#endif
prctl(PR_SET_PDEATHSIG, SIGKILL);
#endif
#if defined(Q_OS_MACX)
qputenv("QT_MAC_DISABLE_FOREGROUND_APPLICATION_TRANSFORM", QByteArray("1"));
#endif
}
void ProcessLauncher::launchProcess()
{
QString commandLine;
if (m_launchOptions.processType == ProcessType::Web) {
commandLine = QLatin1String("%1 \"%2\" %3");
QByteArray webProcessPrefix = qgetenv("QT_WEBKIT2_WP_CMD_PREFIX");
commandLine = commandLine.arg(QLatin1String(webProcessPrefix.constData())).arg(QString(executablePathOfWebProcess()));
} else if (m_launchOptions.processType == ProcessType::Network) {
commandLine = QLatin1String("%1 \"%2\" %3");
QByteArray networkProcessPrefix = qgetenv("QT_WEBKIT2_NP_CMD_PREFIX");
commandLine = commandLine.arg(QLatin1String(networkProcessPrefix.constData())).arg(QString(executablePathOfNetworkProcess()));
#if ENABLE(PLUGIN_PROCESS)
} else if (m_launchOptions.processType == ProcessType::Plugin32 || m_launchOptions.processType == ProcessType::Plugin64) {
commandLine = QLatin1String("%1 \"%2\" %3 %4");
QByteArray pluginProcessPrefix = qgetenv("QT_WEBKIT2_PP_CMD_PREFIX");
commandLine = commandLine.arg(QLatin1String(pluginProcessPrefix.constData())).arg(QString(executablePathOfPluginProcess()));
#endif
} else {
qDebug() << "Unsupported process type" << (int)m_launchOptions.processType;
ASSERT_NOT_REACHED();
}
#if OS(DARWIN)
// Create the listening port.
mach_port_t connector;
mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &connector);
// Insert a send right so we can send to it.
mach_port_insert_right(mach_task_self(), connector, connector, MACH_MSG_TYPE_MAKE_SEND);
// Register port with a service name to the system.
QString serviceName = QStringLiteral("org.qt-project.Qt.WebKit.QtWebProcess-%1-%2");
serviceName = serviceName.arg(QString().setNum(getpid()), QString().setNum((size_t)this));
kern_return_t kr = bootstrap_register2(bootstrap_port, const_cast<char*>(serviceName.toUtf8().data()), connector, 0);
ASSERT_UNUSED(kr, kr == KERN_SUCCESS);
commandLine = commandLine.arg(serviceName);
#elif OS(WINDOWS)
IPC::Connection::Identifier connector, clientIdentifier;
if (!IPC::Connection::createServerAndClientIdentifiers(connector, clientIdentifier)) {
// FIXME: What should we do here?
ASSERT_NOT_REACHED();
}
commandLine = commandLine.arg(qulonglong(clientIdentifier));
// Ensure that the child process inherits the client identifier.
::SetHandleInformation(clientIdentifier, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT);
#else
int sockets[2];
if (socketpair(AF_UNIX, SOCKET_TYPE, 0, sockets) == -1) {
qDebug() << "Creation of socket failed with errno:" << errno;
ASSERT_NOT_REACHED();
return;
}
// Don't expose the ui socket to the web process
while (fcntl(sockets[1], F_SETFD, FD_CLOEXEC) == -1) {
if (errno != EINTR) {
ASSERT_NOT_REACHED();
closeWithRetry(sockets[0]);
closeWithRetry(sockets[1]);
return;
}
}
int connector = sockets[1];
commandLine = commandLine.arg(sockets[0]);
#endif
#if ENABLE(PLUGIN_PROCESS)
if (m_launchOptions.processType == ProcessType::Plugin32 || m_launchOptions.processType == ProcessType::Plugin64)
commandLine = commandLine.arg(QString(m_launchOptions.extraInitializationData.get("plugin-path")));
#endif
QProcess* webProcessOrSUIDHelper = new QtWebProcess();
webProcessOrSUIDHelper->setProcessChannelMode(QProcess::ForwardedChannels);
#if ENABLE(SUID_SANDBOX_LINUX)
if (m_launchOptions.processType == WebProcess) {
QString sandboxCommandLine = QLatin1String("\"%1\" \"%2\" %3");
sandboxCommandLine = sandboxCommandLine.arg(QCoreApplication::applicationDirPath() + QLatin1String("/SUIDSandboxHelper"));
sandboxCommandLine = sandboxCommandLine.arg(executablePathOfWebProcess());
sandboxCommandLine = sandboxCommandLine.arg(sockets[0]);
webProcessOrSUIDHelper->start(sandboxCommandLine);
} else
webProcessOrSUIDHelper->start(commandLine);
#else
webProcessOrSUIDHelper->start(commandLine);
#endif
#if OS(UNIX) && !OS(DARWIN)
// Don't expose the web socket to possible future web processes
while (fcntl(sockets[0], F_SETFD, FD_CLOEXEC) == -1) {
if (errno != EINTR) {
ASSERT_NOT_REACHED();
delete webProcessOrSUIDHelper;
return;
}
}
#endif
if (!webProcessOrSUIDHelper->waitForStarted()) {
qDebug() << "Failed to start" << commandLine;
ASSERT_NOT_REACHED();
#if OS(DARWIN)
mach_port_deallocate(mach_task_self(), connector);
mach_port_mod_refs(mach_task_self(), connector, MACH_PORT_RIGHT_RECEIVE, -1);
#endif
delete webProcessOrSUIDHelper;
return;
}
#if OS(UNIX)
setpriority(PRIO_PROCESS, webProcessOrSUIDHelper->pid(), 10);
#endif
RefPtr<ProcessLauncher> protector(this);
RunLoop::main().dispatch([protector, webProcessOrSUIDHelper, connector] {
protector->didFinishLaunchingProcess(webProcessOrSUIDHelper, connector);
});
}
void ProcessLauncher::terminateProcess()
{
if (!m_processIdentifier)
return;
QObject::connect(m_processIdentifier, SIGNAL(finished(int)), m_processIdentifier, SLOT(deleteLater()), Qt::QueuedConnection);
m_processIdentifier->terminate();
}
void ProcessLauncher::platformInvalidate()
{
}
} // namespace WebKit
#include "ProcessLauncherQt.moc"
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