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Code Issues Releases Wiki Activity

src: Add proper error handling (#283)

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Feature:

    Please see `doc/usage.md` for more information on error-handling.
This commit is contained in:
Gocho Mugo
2017-02-09 16:12:22 +03:00
committed by GitHub
parent 6f5dad6e5b
commit eed7c1e4d0
8 changed files with 272 additions and 95 deletions
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64
src/telegramWebHook.js
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@@ -1,3 +1,4 @@
const errors = require('./errors');
const debug = require('debug')('node-telegram-bot-api');
const https = require('https');
const http = require('http');
@@ -9,27 +10,16 @@ const Promise = require('bluebird');
class TelegramBotWebHook {
/**
* Sets up a webhook to receive updates
*
* @param {String} token Telegram API token
* @param {Boolean|Object} options WebHook options
* @param {String} [options.host=0.0.0.0] Host to bind to
* @param {Number} [options.port=8443] Port to bind to
* @param {String} [options.healthEndpoint=/healthz] An endpoint for health checks that always responds with 200 OK
* @param {Function} callback Function for process a new update
* @param {TelegramBot} bot
* @see https://core.telegram.org/bots/api#getting-updates
*/
constructor(token, options, callback) {
// define opts
if (typeof options === 'boolean') {
options = {}; // eslint-disable-line no-param-reassign
}
this.token = token;
this.options = options;
this.options.host = options.host || '0.0.0.0';
this.options.port = options.port || 8443;
this.options.https = options.https || {};
this.options.healthEndpoint = options.healthEndpoint || '/healthz';
this.callback = callback;
constructor(bot) {
this.bot = bot;
this.options = (typeof bot.options.webHook === 'boolean') ? {} : bot.options.webHook;
this.options.host = this.options.host || '0.0.0.0';
this.options.port = this.options.port || 8443;
this.options.https = this.options.https || {};
this.options.healthEndpoint = this.options.healthEndpoint || '/healthz';
this._healthRegex = new RegExp(this.options.healthEndpoint);
this._webServer = null;
this._open = false;
@@ -100,31 +90,35 @@ class TelegramBotWebHook {
return this._open;
}
// used so that other funcs are not non-optimizable
_safeParse(json) {
try {
return JSON.parse(json);
} catch (err) {
debug(err);
return null;
/**
* Handle error thrown during processing of webhook request.
* @private
* @param {Error} error
*/
_error(error) {
if (!this.bot.listeners('webhook_error').length) {
return console.error(error); // eslint-disable-line no-console
}
return this.bot.emit('webhook_error', error);
}
/**
* Handle request body by passing it to 'callback'
* @private
*/
_parseBody(err, body) {
if (err) {
return debug(err);
_parseBody(error, body) {
if (error) {
return this._error(new errors.FatalError(error));
}
const data = this._safeParse(body);
if (data) {
return this.callback(data);
let data;
try {
data = JSON.parse(body.toString());
} catch (parseError) {
return this._error(new errors.ParseError(parseError.message));
}
return null;
return this.bot.processUpdate(data);
}
/**
@@ -137,7 +131,7 @@ class TelegramBotWebHook {
debug('WebHook request URL: %s', req.url);
debug('WebHook request headers: %j', req.headers);
if (req.url.indexOf(this.token) !== -1) {
if (req.url.indexOf(this.bot.token) !== -1) {
if (req.method !== 'POST') {
debug('WebHook request isn\'t a POST');
res.statusCode = 418; // I'm a teabot!