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valki
189
nodered/rootfs/data/node_modules/node-telegram-bot-api/lib/telegramWebHook.js
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189
nodered/rootfs/data/node_modules/node-telegram-bot-api/lib/telegramWebHook.js
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'use strict';
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var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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var errors = require('./errors');
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var debug = require('debug')('node-telegram-bot-api');
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var https = require('https');
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var http = require('http');
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var fs = require('fs');
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var bl = require('bl');
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var Promise = require('bluebird');
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var TelegramBotWebHook = function () {
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/**
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* Sets up a webhook to receive updates
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* @param {TelegramBot} bot
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* @see https://core.telegram.org/bots/api#getting-updates
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*/
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function TelegramBotWebHook(bot) {
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_classCallCheck(this, TelegramBotWebHook);
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this.bot = bot;
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this.options = typeof bot.options.webHook === 'boolean' ? {} : bot.options.webHook;
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this.options.host = this.options.host || '0.0.0.0';
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this.options.port = this.options.port || 8443;
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this.options.https = this.options.https || {};
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this.options.healthEndpoint = this.options.healthEndpoint || '/healthz';
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this._healthRegex = new RegExp(this.options.healthEndpoint);
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this._webServer = null;
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this._open = false;
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this._requestListener = this._requestListener.bind(this);
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this._parseBody = this._parseBody.bind(this);
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if (this.options.key && this.options.cert) {
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debug('HTTPS WebHook enabled (by key/cert)');
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this.options.https.key = fs.readFileSync(this.options.key);
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this.options.https.cert = fs.readFileSync(this.options.cert);
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this._webServer = https.createServer(this.options.https, this._requestListener);
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} else if (this.options.pfx) {
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debug('HTTPS WebHook enabled (by pfx)');
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this.options.https.pfx = fs.readFileSync(this.options.pfx);
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this._webServer = https.createServer(this.options.https, this._requestListener);
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} else if (Object.keys(this.options.https).length) {
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debug('HTTPS WebHook enabled by (https)');
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this._webServer = https.createServer(this.options.https, this._requestListener);
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} else {
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debug('HTTP WebHook enabled');
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this._webServer = http.createServer(this._requestListener);
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}
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}
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/**
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* Open WebHook by listening on the port
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* @return {Promise}
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*/
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_createClass(TelegramBotWebHook, [{
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key: 'open',
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value: function open() {
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var _this = this;
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if (this.isOpen()) {
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return Promise.resolve();
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}
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return new Promise(function (resolve) {
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_this._webServer.listen(_this.options.port, _this.options.host, function () {
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debug('WebHook listening on port %s', _this.options.port);
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_this._open = true;
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return resolve();
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});
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});
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}
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/**
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* Close the webHook
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* @return {Promise}
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*/
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}, {
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key: 'close',
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value: function close() {
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var _this2 = this;
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if (!this.isOpen()) {
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return Promise.resolve();
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}
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return new Promise(function (resolve, reject) {
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_this2._webServer.close(function (error) {
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if (error) return reject(error);
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_this2._open = false;
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return resolve();
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});
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});
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}
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/**
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* Return `true` if server is listening. Otherwise, `false`.
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*/
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}, {
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key: 'isOpen',
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value: function isOpen() {
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// NOTE: Since `http.Server.listening` was added in v5.7.0
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// and we still need to support Node v4,
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// we are going to fallback to 'this._open'.
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// The following LOC would suffice for newer versions of Node.js
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// return this._webServer.listening;
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return this._open;
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}
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/**
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* Handle error thrown during processing of webhook request.
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* @private
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* @param {Error} error
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*/
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}, {
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key: '_error',
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value: function _error(error) {
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if (!this.bot.listeners('webhook_error').length) {
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return console.error('error: [webhook_error] %j', error); // eslint-disable-line no-console
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}
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return this.bot.emit('webhook_error', error);
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}
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/**
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* Handle request body by passing it to 'callback'
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* @private
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*/
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}, {
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key: '_parseBody',
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value: function _parseBody(error, body) {
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if (error) {
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return this._error(new errors.FatalError(error));
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}
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var data = void 0;
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try {
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data = JSON.parse(body.toString());
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} catch (parseError) {
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return this._error(new errors.ParseError(parseError.message));
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}
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return this.bot.processUpdate(data);
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}
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/**
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* Listener for 'request' event on server
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* @private
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* @see https://nodejs.org/docs/latest/api/http.html#http_http_createserver_requestlistener
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* @see https://nodejs.org/docs/latest/api/https.html#https_https_createserver_options_requestlistener
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*/
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}, {
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key: '_requestListener',
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value: function _requestListener(req, res) {
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debug('WebHook request URL: %s', req.url);
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debug('WebHook request headers: %j', req.headers);
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if (req.url.indexOf(this.bot.token) !== -1) {
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if (req.method !== 'POST') {
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debug('WebHook request isn\'t a POST');
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res.statusCode = 418; // I'm a teabot!
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res.end();
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} else {
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req.pipe(bl(this._parseBody)).on('finish', function () {
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return res.end('OK');
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});
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}
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} else if (this._healthRegex.test(req.url)) {
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debug('WebHook health check passed');
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res.statusCode = 200;
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res.end('OK');
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} else {
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debug('WebHook request unauthorized');
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res.statusCode = 401;
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res.end();
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}
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}
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}]);
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return TelegramBotWebHook;
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}();
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module.exports = TelegramBotWebHook;
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