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export { connect, send };
import http from 'http';
/**
* Connects to the server and returns the connection data.
* @param {String} The bot ID.
* @promise {Object} Answer from the server.
* @rejects {Error} If there are errors in operation.
*/
function connect(uuid) {
return new Promise((resolve, reject) => {
if (!isVerification(uuid)) reject(new Error('The UUID is not a valid value!'));
const query = {
path: '/api/2.0/json/Chat.init/' + uuid,
hostname: 'iii.ru',
method: 'GET',
port: 80,
};
const request = http.request(query, (response) => {
let json = '';
response.on('data', (raw) => json = decryptJSON(raw));
response.on('end', () => {
if (json.error) reject(json.error);
resolve(json.result);
});
});
request.on('error', (error) => reject(error));
request.end();
});
}
/**
* Send a message to the server and return a response.
* @param {String} cuid - Session identifier.
* @param {String} text - Message text.
* @promise {Object} Answer from the server.
* @rejects {Error} If there are errors in operation.
*/
function send(cuid, text) {
return new Promise((resolve, reject) => {
if (!isVerification(cuid)) reject(new Error('The CUID is not a valid value!'));
if (!isString(text)) reject(new Error('The parameter is not a string!'));
const query = {
path: '/api/2.0/json/Chat.request',
hostname: 'iii.ru',
method: 'POST',
port: 80,
};
const request = http.request(query, (response) => {
let json = '';
response.on('data', (raw) => json = decryptJSON(raw));
response.on('end', () => {
if (json.error) reject(json.error);
resolve(json.result);
});
});
request.on('error', (error) => reject(error));
request.write(createPackage(cuid, text));
request.end();
});
}
/**
* Encrypts the incoming data.
* @param {String} Decrypted data.
* @returns {String} Encrypted string.
*/
function encrypt(data) {
const base64 = Buffer.from(data).toString('base64');
const string = Buffer.from(base64);
return mergerString(string).toString('base64');
}
/**
* Decrypts the incoming data.
* @param {String} Encrypted data.
* @returns {String} Decrypted string.
*/
function decrypt(data) {
const string = Buffer.from(data, 'base64');
const decrypted = mergerString(string).toString();
return Buffer.from(decrypted, 'base64');
}
/**
* Decrypts an encrypted JSON object.
* @param {String} Encrypted data.
* @returns {Object} Decrypted JSON.
*/
function decryptJSON(json) {
const string = json.toString('ascii');
const data = decrypt(string);
return JSON.parse(data);
}
/**
* Merge and convert a string.
* @param {String} The string to convert.
* @returns {String} The converted string.
*/
function mergerString(data) {
const salt = Buffer.from('some very-very long string without any non-latin characters due to different string representations inside of variable programming languages');
return data.map((item, index) => {
return item ^ salt[index % salt.length];
});
}
/**
* Creates an encrypted package to send.
* @param {String} cuid - Session identifier.
* @param {String} text - Message text.
* @returns {String} Encrypted string.
*/
function createPackage(cuid, text) {
let data = [];
data.push(cuid);
data.push(text.toString());
const json = JSON.stringify(data);
return encrypt(json);
}
/**
* Validation UUID format string.
* @param {String} The string to check.
* @returns {Boolean}
*/
function isVerification(data) {
const regexp = new RegExp('^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', 'i');
return regexp.test(data);
}
/**
* Determines if a reference is a String.
* @param {String} The string to check.
* @returns {Boolean}
*/
function isString(data) {
return typeof data === 'string';
}
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