telegram js api

telegram.js

'use strict';

var bin_utils = require('./bin_utils.js');
var tl_utils = require('./tl_utils.js');
var utils = require('./utils.js');

var telegram = function(publisKeysHex)
{ 
	var publicKeysParsed = {};

	var prepareRsaKeys = function(publisKeysHex)
	{
	        for (var i = 0; i < publisKeysHex.length; i++)
	        {
	                var keyParsed = publisKeysHex[i];

	                var RSAPublicKey = new tl_utils.TLSerialization();
	                RSAPublicKey.storeBytes(bin_utils.bytesFromHex(keyParsed.modulus), 'n');
	                RSAPublicKey.storeBytes(bin_utils.bytesFromHex(keyParsed.exponent), 'e');

	                var buffer = RSAPublicKey.getBuffer();

        	        var fingerprintBytes = bin_utils.sha1Hash(buffer).slice(-8);
                	fingerprintBytes.reverse();

	                publicKeysParsed[bin_utils.bytesToHex(fingerprintBytes)] =
	                {
	                        modulus: keyParsed.modulus,
	                        exponent: keyParsed.exponent
	                };
	        }
	};

	this.getPublicKeys = function()
	{
		return publicKeysParsed;
	};

	var lastMessageId = [0, 0];
	var timeOffset = 0;

	var generateMessageId = function()
	{
		var timeTicks = utils.tsNow(),
		timeSec   = Math.floor(timeTicks / 1000) + timeOffset,
		timeMSec  = timeTicks % 1000,
		random    = bin_utils.nextRandomInt(0xFFFF);

		var messageId = [timeSec, (timeMSec << 21) | (random << 3) | 4];
		if (lastMessageId[0] > messageId[0] || lastMessageId[0] == messageId[0] && lastMessageId[1] >= messageId[1])
			messageId = [lastMessageId[0], lastMessageId[1] + 4];

		lastMessageId = messageId;

		return bin_utils.longFromInts(messageId[0], messageId[1]);
	};

	this.getLastMessageId = function()
	{
		return bin_utils.longFromInts(lastMessageId[0], lastMessageId[1]);
	};

	this.sendCode = function(phone)
	{
		var self = this;
		var messageId = generateMessageID();

		var params =
		{
                	phone_number: phone,
	                sms_type: 0,
	                api_id: 2496,
	                api_hash: "8da85b0d5bfe62527e5b244c209159c3"
		};
		var options =
		{
			createNetworker: true,
			dcID: "4",
			messageID: messageId,
			resultType: "auth.SentCode"
		};
	};

	this.__construct = function(publisKeysHex)
	{
		prepareRsaKeys(publisKeysHex);
	};
	this.__construct(publisKeysHex);
};

var t = new telegram([
{
	modulus: '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',
        exponent: '010001'
}]);

t.sendCode('12345678901');

hi ! how to calculate the modulus string?