Separated WebHook

src/telegramWebHook.js

@@ -0,0 +1,66 @@
+var debug = require('debug')('node-telegram-bot-api');
+var https = require('https');
+var http = require('http');
+var util = require('util');
+var fs = require('fs');
+
+var TelegramBotWebHook = function (token, options, callback) {
+  this.token = token;
+  this.callback = callback;
+  if (typeof options === 'boolean') {
+    options = {};
+  }
+  options.port = options.port || 8443;
+  var binded = this._requestListener.bind(this);
+
+  if (options.key && options.cert) { // HTTPS Server
+    debug('HTTPS WebHook enabled');
+    var opts = {
+      key: fs.readFileSync(options.key),
+      cert: fs.readFileSync(options.cert)
+    };
+    this._webServer = https.createServer(opts, binded);
+  } else {
+    debug('HTTP WebHook enabled');
+    this._webServer = http.createServer(binded);
+  }
+
+  this._webServer.listen(options.port, options.host, function () {
+    debug("WebHook listening on port %s", options.port);
+  });
+};
+
+TelegramBotWebHook.prototype._requestListener = function (req, res) {
+  var self = this;
+  var regex = new RegExp(this.token);
+
+  debug('WebHook request URL:', req.url);
+  debug('WebHook request headers: %j', req.headers);
+  // If there isn't token on URL
+  if (!regex.test(req.url)) {
+    debug('WebHook request unauthorized');
+    res.statusCode = 401;
+    res.end();
+  } else if (req.method === 'POST') {
+    var fullBody = '';
+    req.on('data', function (chunk) {
+      fullBody += chunk.toString();
+    });
+    req.on('end', function () {
+      try {
+        debug('WebHook request fullBody', fullBody);
+        var data = JSON.parse(fullBody);
+        self.callback(data);
+      } catch (error) {
+        debug(error);
+      }
+      res.end('OK');
+    });
+  } else { // Authorized but not a POST
+    debug('WebHook request isn\'t a POST');
+    res.statusCode = 418; // I'm a teabot!
+    res.end();
+  }
+};
+
+module.exports = TelegramBotWebHook;