jarvisnode/modules/tcp/utils.js

A library written in Node.js used to communicate with my Jarvis project

var fs = require('fs');
var types = require('../types');

module.exports = {

  connectionResponse: function(data, cb) {

    if (data[0] === 0x01) {

      var hash = data.readDoubleBE(1);
      require('../config').get().HASH = hash;
      return cb(null);
    } else if (data[0] === 0x00)
      return cb('Invalid hash');
  },

  registerRequestResponse: function(data, cb) {

    var config = require('../config').get();
    if (data[0] === 0x01) {

      config.HASH = data.readDoubleBE(1);

      require('../config').save(function(err) {

        return cb(err);
      });

    } else if (data[0] === 0x00)
      return cb('Unauthorized');
  },

  registerRequest: function(cb) {

    var segment = new Buffer(1);
    segment[0] = types.messages.TCP.S.REGISTER_REQUEST;

    return cb(null, segment);
  },

  register: function(cb) {

    var config = require('../config').get();

    if (!config.J_IP)
      return cb(0xE0, null);

    if (config.HASH) {

      fs.readFile(config.SATELLITE_CONFIGURATION_FILE_PATH, function(err, data) {

        if (err)
          return cb(err, null);

        var segment = new Buffer(1 + 8);
        segment[0] = types.messages.TCP.S.REGISTER;
        segment.writeDoubleBE(config.HASH, 1);
        segment = Buffer.concat([segment, data], segment.length + data.length);

        return cb(null, segment);
      });
    }
  },

  registerResponse: function(data, cb) {

  },

  connect: function(cb) {

    var config = require('../config').get();

    if (!config.J_IP)
      return cb(0xE0, null);

    if (config.HASH) {

      var segment = new Buffer(9);
      segment[0] = types.messages.TCP.S.CONN_REQUEST;
      segment.writeDoubleBE(config.HASH, 1);

      return cb(null, segment);
    }

    return cb(0xE1, null);
  }
};