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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 "build/build_config.h"

#if defined(OS_POSIX)
#include <termios.h>
#endif  // defined (OS_POSIX)

#include "base/at_exit.h"
#include "remoting/host/capturer_fake.h"
#include "remoting/host/encoder_verbatim.h"
#include "remoting/host/simple_host.h"

#if defined(OS_WIN)
#include "remoting/host/capturer_gdi.h"
#include "remoting/host/event_executor_win.h"
#elif defined(OS_LINUX)
#include "remoting/host/capturer_linux.h"
#include "remoting/host/event_executor_linux.h"
#elif defined(OS_MAC)
#include "remoting/host/capturer_mac.h"
#include "remoting/host/event_executor_mac.h"
#endif

void SetConsoleEcho(bool on) {
#if defined(OS_WIN)
  HANDLE hIn = GetStdHandle(STD_INPUT_HANDLE);
  if ((hIn == INVALID_HANDLE_VALUE) || (hIn == NULL))
    return;

  DWORD mode;
  if (!GetConsoleMode(hIn, &mode))
    return;

  if (on) {
    mode = mode | ENABLE_ECHO_INPUT;
  } else {
    mode = mode & ~ENABLE_ECHO_INPUT;
  }

  SetConsoleMode(hIn, mode);
#elif defined(OS_POSIX)
  struct termios settings;
  tcgetattr(STDIN_FILENO, &settings);
  if (on) {
    settings.c_lflag |= ECHO;
  } else {
    settings.c_lflag &= ~ECHO;
  }
  tcsetattr(STDIN_FILENO, TCSANOW, &settings);
#endif  //  defined(OS_WIN)
}

int main(int argc, char** argv) {
  base::AtExitManager exit_manager;

  // Check the argument to see if we should use a fake capturer and encoder.
  bool fake = false;
  if (argc > 1 && std::string(argv[1]) == "--fake") {
    fake = true;
  }

  // Prompt user for username and password.
  std::string username;
  std::cout << "JID: ";
  std::cin >> username;
  std::string password;
  SetConsoleEcho(false);
  std::cout << "Password: ";
  std::cin >> password;
  SetConsoleEcho(true);
  std::cout << std::endl;

  scoped_ptr<remoting::Capturer> capturer;
  scoped_ptr<remoting::Encoder> encoder;
  scoped_ptr<remoting::EventExecutor> executor;
#if defined(OS_WIN)
  capturer.reset(new remoting::CapturerGdi());
  executor.reset(new remoting::EventExecutorWin());
#elif defined(OS_LINUX)
  capturer.reset(new remoting::CapturerLinux());
  executor.reset(new remoting::EventExecutorLinux());
#elif defined(OS_MAC)
  capturer.reset(new remoting::CapturerMac());
  executor.reset(new remoting::EventExecutorMac());
#endif
  encoder.reset(new remoting::EncoderVerbatim());

  if (fake) {
    // Inject a fake capturer.
    capturer.reset(new remoting::CapturerFake());
  }

  // Construct a simple host with username and password.
  // TODO(hclam): Allow the host to load saved credentials.
  scoped_refptr<remoting::SimpleHost> host
      = new remoting::SimpleHost(username, password,
                                   capturer.release(),
                                   encoder.release(),
                                   executor.release());
  host->Run();
  return 0;
}