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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// This file implements a standalone host process for Me2Me, which is currently
// used for the Linux-only Virtual Me2Me build.
#include <stdlib.h>
#include <string>
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/callback.h"
#include "base/command_line.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "base/threading/thread.h"
#include "build/build_config.h"
#include "crypto/nss_util.h"
#include "remoting/base/constants.h"
#include "remoting/host/chromoting_host.h"
#include "remoting/host/chromoting_host_context.h"
#include "remoting/host/desktop_environment.h"
#include "remoting/host/event_executor.h"
#include "remoting/host/heartbeat_sender.h"
#include "remoting/host/host_config.h"
#include "remoting/host/json_host_config.h"
#include "remoting/host/self_access_verifier.h"
#if defined(TOOLKIT_USES_GTK)
#include "ui/gfx/gtk_util.h"
#endif
namespace {
// These are used for parsing the config-file locations from the command line,
// and for defining the default locations if the switches are not present.
const char kAuthConfigSwitchName[] = "auth-config";
const char kHostConfigSwitchName[] = "host-config";
const FilePath::CharType kDefaultConfigDir[] =
FILE_PATH_LITERAL(".config/chrome-remote-desktop");
const FilePath::CharType kDefaultAuthConfigFile[] =
FILE_PATH_LITERAL("auth.json");
const FilePath::CharType kDefaultHostConfigFile[] =
FILE_PATH_LITERAL("host.json");
}
namespace remoting {
class HostProcess {
public:
HostProcess() {}
void InitWithCommandLine(const CommandLine* cmd_line) {
FilePath default_config_dir =
file_util::GetHomeDir().Append(kDefaultConfigDir);
if (cmd_line->HasSwitch(kAuthConfigSwitchName)) {
auth_config_path_ = cmd_line->GetSwitchValuePath(kAuthConfigSwitchName);
} else {
auth_config_path_ = default_config_dir.Append(kDefaultAuthConfigFile);
}
if (cmd_line->HasSwitch(kHostConfigSwitchName)) {
host_config_path_ = cmd_line->GetSwitchValuePath(kHostConfigSwitchName);
} else {
host_config_path_ = default_config_dir.Append(kDefaultHostConfigFile);
}
}
int Run() {
// |message_loop| is declared early so that any code we call into which
// requires a current message-loop won't complain.
// It needs to be a UI message loop to keep runloops spinning on the Mac.
MessageLoop message_loop(MessageLoop::TYPE_UI);
remoting::ChromotingHostContext context(base::MessageLoopProxy::current());
context.Start();
base::Thread file_io_thread("FileIO");
file_io_thread.Start();
if (!LoadConfig(file_io_thread.message_loop_proxy())) {
context.Stop();
return 1;
}
// Initialize AccessVerifier.
scoped_ptr<remoting::SelfAccessVerifier> self_access_verifier(
new remoting::SelfAccessVerifier());
if (!self_access_verifier->Init(host_config_)) {
context.Stop();
return 1;
}
// Create the DesktopEnvironment and ChromotingHost.
scoped_ptr<DesktopEnvironment> desktop_environment(
DesktopEnvironment::Create(&context));
host_ = ChromotingHost::Create(&context, host_config_,
desktop_environment.get(),
self_access_verifier.release(), false);
// Initialize HeartbeatSender.
scoped_ptr<remoting::HeartbeatSender> heartbeat_sender(
new remoting::HeartbeatSender(context.network_message_loop(),
host_config_));
if (!heartbeat_sender->Init()) {
context.Stop();
return 1;
}
host_->AddStatusObserver(heartbeat_sender.get());
// Run the ChromotingHost until the shutdown task is executed.
host_->Start();
message_loop.MessageLoop::Run();
// And then stop the chromoting context.
context.Stop();
file_io_thread.Stop();
host_ = NULL;
return 0;
}
private:
// Read Host config from disk, returning true if successful.
bool LoadConfig(base::MessageLoopProxy* message_loop_proxy) {
host_config_ =
new remoting::JsonHostConfig(host_config_path_, message_loop_proxy);
scoped_refptr<remoting::JsonHostConfig> auth_config =
new remoting::JsonHostConfig(auth_config_path_, message_loop_proxy);
std::string failed_path;
if (!host_config_->Read()) {
failed_path = host_config_path_.value();
} else if (!auth_config->Read()) {
failed_path = auth_config_path_.value();
}
if (!failed_path.empty()) {
LOG(ERROR) << "Failed to read configuration file " << failed_path;
return false;
}
// Copy the needed keys from |auth_config| into |host_config|.
std::string value;
auth_config->GetString(kXmppAuthTokenConfigPath, &value);
host_config_->SetString(kXmppAuthTokenConfigPath, value);
auth_config->GetString(kXmppLoginConfigPath, &value);
host_config_->SetString(kXmppLoginConfigPath, value);
// For the Me2Me host, we assume we always use the ClientLogin token for
// chromiumsync because we do not have an HTTP stack with which we can
// easily request an OAuth2 access token even if we had a RefreshToken for
// the account.
host_config_->SetString(kXmppAuthServiceConfigPath,
kChromotingTokenDefaultServiceName);
return true;
}
FilePath auth_config_path_;
FilePath host_config_path_;
scoped_refptr<remoting::JsonHostConfig> host_config_;
scoped_refptr<ChromotingHost> host_;
};
} // namespace remoting
int main(int argc, char** argv) {
CommandLine::Init(argc, argv);
// This object instance is required by Chrome code (for example,
// LazyInstance, MessageLoop).
base::AtExitManager exit_manager;
const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
#if defined(TOOLKIT_USES_GTK)
// Required for any calls into GTK functions, such as the Disconnect and
// Continue windows, though these should not be used for the Me2Me case
// (crbug.com/104377).
gfx::GtkInitFromCommandLine(*cmd_line);
#endif // TOOLKIT_USES_GTK
remoting::HostProcess me2me_host;
me2me_host.InitWithCommandLine(cmd_line);
return me2me_host.Run();
}
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