cli.js

#!/usr/bin/env node

(function () {
  var Login = require('./scripts/login.js');
  var Crypt = require('./scripts/crypt.js');
  var Messenger = require('./scripts/messenger.js');
  var Settings = require('./scripts/settings.js');
  var colors = require('colors');

  function executeCompleteLogin(callback) {
    console.log('Facebook credentials');
    var login = new Login();
    login.execute(function (err, creds) {
      var crypt = Crypt.getInstance();
      // Return callback with no error
      callback(err);
    });
  }

  function verifyLogon(password, callback) {
    var crypt = Crypt.getInstance(password);

    crypt.load(function (err, data) {

      if (!err) {
        Settings.getInstance().load(function (err, settings) {
          var logonTimeout = Settings.getInstance().getLogonTimeout();

          json = JSON.parse(data);
          var cookie = json.cookie;
          var fbdtsg = json.fb_dtsg;
          var userId = json.c_user;
          var lastSave = json.saveTime;
          var curTime = new Date().getTime();
          console.log('Last logon time: ' + new Date(lastSave));

          // If we've been logged on for too long
          // Do an other login to refresh the cookie
          if (lastSave + logonTimeout < curTime) {
            console.log('Your logged in time has expired'.yellow);
            callback(true);
          } else {
            var messenger = new Messenger(cookie, userId, fbdtsg);

            messenger.getThreads(function (err, threads) {
              callback(err);
            });
          }
        });
      } else {
        callback(err);
      }
    });
  }

  function launchApp(err) {
    if (err) {
      executeCompleteLogin(launchApp);
    } else {
      var settings = Settings.getInstance();
      settings.load(function(err, data) {
        var delay = 0;
        if (!err && data !== undefined) {
          if (data.disableColors) {
            colors.enabled = false;
          }
        } else {
          delay = 2000;
          console.log('Warning : settings can\'t be read'.yellow);
        }

        setTimeout(function() {
          console.log('Launching app...'.cyan);
          require('./scripts/interactive.js');
        }, delay);
      });
    }
  }

  function initSignalListeners(){
    process.on("SIGINT", function () {
      console.log('Thanks for using fb-messenger-cli'.cyan);
      console.log('Bye!'.cyan);
      process.exit(0);
    });

    process.on("SIGTERM", function () {
      console.log('Thanks for using fb-messenger-cli'.cyan);
      console.log('Bye!'.cyan);
      process.exit(0);
    });
  }

  // First check if current cookie is still valid
  try {
    initSignalListeners();
    verifyLogon('pass', launchApp);
  } catch (err) {
    console.log('You need to logon');
    executeCompleteLogin(launchApp);
  }
}());