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// Copyright (c) 2010 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 is an application of a minimal host process in a Chromoting
// system. It serves the purpose of gluing different pieces together
// to make a functional host process for testing.
//
// It peforms the following functionality:
// 1. Connect to the GTalk network and register the machine as a host.
// 2. Accepts connection through libjingle.
// 3. Receive mouse / keyboard events through libjingle.
// 4. Sends screen capture through libjingle.
#include <iostream>
#include <string>
#include <stdlib.h>
#include "build/build_config.h"
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/environment.h"
#include "base/file_path.h"
#include "base/logging.h"
#include "base/mac/scoped_nsautorelease_pool.h"
#include "base/nss_util.h"
#include "base/path_service.h"
#include "base/thread.h"
#include "media/base/media.h"
#include "remoting/base/tracer.h"
#include "remoting/host/capturer_fake.h"
#include "remoting/host/chromoting_host.h"
#include "remoting/host/chromoting_host_context.h"
#include "remoting/host/json_host_config.h"
#include "remoting/proto/video.pb.h"
#if defined(OS_WIN)
const std::wstring kDefaultConfigPath = L".ChromotingConfig.json";
const wchar_t kHomeDrive[] = L"HOMEDRIVE";
const wchar_t kHomePath[] = L"HOMEPATH";
const wchar_t* GetEnvironmentVar(const wchar_t* x) { return _wgetenv(x); }
#else
const std::string kDefaultConfigPath = ".ChromotingConfig.json";
static char* GetEnvironmentVar(const char* x) { return getenv(x); }
#endif
void ShutdownTask(MessageLoop* message_loop) {
message_loop->PostTask(FROM_HERE, new MessageLoop::QuitTask());
}
const std::string kFakeSwitchName = "fake";
const std::string kConfigSwitchName = "config";
int main(int argc, char** argv) {
// Needed for the Mac, so we don't leak objects when threads are created.
base::mac::ScopedNSAutoreleasePool pool;
CommandLine::Init(argc, argv);
const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
base::AtExitManager exit_manager;
base::EnsureNSPRInit();
// Allocate a chromoting context and starts it.
remoting::ChromotingHostContext context;
context.Start();
#if defined(OS_WIN)
std::wstring home_path = GetEnvironmentVar(kHomeDrive);
home_path += GetEnvironmentVar(kHomePath);
#else
std::string home_path = GetEnvironmentVar(base::env_vars::kHome);
#endif
FilePath config_path(home_path);
config_path = config_path.Append(kDefaultConfigPath);
if (cmd_line->HasSwitch(kConfigSwitchName)) {
config_path = cmd_line->GetSwitchValuePath(kConfigSwitchName);
}
base::Thread file_io_thread("FileIO");
file_io_thread.Start();
scoped_refptr<remoting::JsonHostConfig> config(
new remoting::JsonHostConfig(
config_path, file_io_thread.message_loop_proxy()));
if (!config->Read()) {
LOG(ERROR) << "Failed to read configuration file " << config_path.value();
context.Stop();
return 1;
}
FilePath module_path;
PathService::Get(base::DIR_MODULE, &module_path);
CHECK(media::InitializeMediaLibrary(module_path))
<< "Cannot load media library";
// Construct a chromoting host.
scoped_refptr<remoting::ChromotingHost> host;
bool fake = cmd_line->HasSwitch(kFakeSwitchName);
if (fake) {
host = new remoting::ChromotingHost(
&context, config,
new remoting::CapturerFake(context.main_message_loop()));
} else {
host = new remoting::ChromotingHost(&context, config);
}
// Let the chromoting host run until the shutdown task is executed.
MessageLoop message_loop(MessageLoop::TYPE_UI);
host->Start(NewRunnableFunction(&ShutdownTask, &message_loop));
message_loop.Run();
// And then stop the chromoting context.
context.Stop();
file_io_thread.Stop();
return 0;
}
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