├── LICENSE ├── README.md ├── example-gitlab-ci.yml ├── index.js ├── router.js ├── src ├── config.js ├── handlers │ └── teleWorker.js └── utils │ └── telegram.js └── wrangler.toml /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright 2019 Ricardo Franzen 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Simple Telegram Bot using Cloudflare Workers 2 | 3 | ## teleworker 4 | Telegram Bot designed to run using Cloudflare Workers. 5 | 6 | ## Proof of Concept 7 | This bot is just a proof of concept. 8 | 9 | 10 | To be clear, I'm not a programmer, so don't expect a beautiful code or the best practices. It's just the result of an idea and the effort searching and trying to make something useful. 11 | 12 | ## Contributing 13 | Do you like that idea? Want to help to turn into something bigger? Please feel free to contact me and let's discuss about that. 14 | 15 | [t.me/rfranzen](https://t.me/rfranzen) 16 | 17 | 18 | ## Testing 19 | ### Wrangler and Cloudflare 20 | Wrangler is used to publish your application on Cloudflare Workers structure. 21 | 22 | Using Wrangler: https://github.com/cloudflare/wrangler 23 | 24 | **wrangler.toml** shows how the configuration must be. 25 | 26 | 27 | 28 | ### Telegram 29 | #### Configure your bot to use the webhook 30 | ``` 31 | curl https://api.telegram.org/bot/setWebhook -F 'url=https://your-bot-url' 32 | ``` 33 | 34 | #### Delete webhook configuration from your bot 35 | ``` 36 | curl https://api.telegram.org/bot/DeleteWebhook 37 | ``` 38 | 39 | #### Get info from your webhook configuration 40 | ``` 41 | curl https://api.telegram.org/bot/getWebhookInfo 42 | ``` 43 | 44 | #### Using curl to send a message to your bot: 45 | ``` 46 | curl --tlsv1 -v -k -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{ 47 | "update_id":10000, 48 | "message":{ 49 | "date":1441645532, 50 | "chat":{ 51 | "last_name":"Test Lastname", 52 | "id":000001010, 53 | "first_name":"Test", 54 | "username":"Test" 55 | }, 56 | "message_id":1365, 57 | "from":{ 58 | "last_name":"Test Lastname", 59 | "id":000001010, 60 | "first_name":"Test", 61 | "username":"Test" 62 | }, 63 | "text":"Testing" 64 | } 65 | }' "https://your-bot-url" 66 | ``` -------------------------------------------------------------------------------- /example-gitlab-ci.yml: -------------------------------------------------------------------------------- 1 | --- 2 | image: node:latest 3 | 4 | stages: 5 | - justDoIt 6 | 7 | LetsDoThis: 8 | stage: justDoIt 9 | script: 10 | - npm i @cloudflare/wrangler 11 | - ln -s /builds/rfranzen/teleworker/node_modules/.bin/wrangler . 12 | - CF_API_KEY=000000000000000000000000 CF_EMAIL="your@email.com" ./wrangler publish --release 13 | only: 14 | refs: 15 | - master -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | import teleWorker from './src/handlers/teleWorker' 2 | import Router from './router' 3 | 4 | addEventListener('fetch', event => { 5 | return event.respondWith(handleRequest(event.request)) 6 | }) 7 | 8 | async function handleRequest(request) { 9 | 10 | const r = new Router() 11 | 12 | r.post('/teleworker', teleWorker) 13 | 14 | let response = await r.route(request) 15 | 16 | if (!response) { 17 | response = new Response('Not Found', { status: 404}) 18 | } 19 | 20 | return response 21 | 22 | } -------------------------------------------------------------------------------- /router.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Helper functions that when passed a request will return a 3 | * boolean indicating if the request uses that HTTP method, 4 | * header, host or referrer. 5 | */ 6 | const Method = method => req => 7 | req.method.toLowerCase() === method.toLowerCase() 8 | const Connect = Method('connect') 9 | const Delete = Method('delete') 10 | const Get = Method('get') 11 | const Head = Method('head') 12 | const Options = Method('options') 13 | const Patch = Method('patch') 14 | const Post = Method('post') 15 | const Put = Method('put') 16 | const Trace = Method('trace') 17 | 18 | const Header = (header, val) => req => req.headers.get(header) === val 19 | const Host = host => Header('host', host.toLowerCase()) 20 | const Referrer = host => Header('referrer', host.toLowerCase()) 21 | 22 | const Path = regExp => req => { 23 | const url = new URL(req.url) 24 | const path = url.pathname 25 | const match = path.match(regExp) || [] 26 | return match[0] === path 27 | } 28 | 29 | /** 30 | * The Router handles determines which handler is matched given the 31 | * conditions present for each request. 32 | */ 33 | class Router { 34 | constructor() { 35 | this.routes = [] 36 | } 37 | 38 | handle(conditions, handler) { 39 | this.routes.push({ 40 | conditions, 41 | handler, 42 | }) 43 | return this 44 | } 45 | 46 | connect(url, handler) { 47 | return this.handle([Connect, Path(url)], handler) 48 | } 49 | 50 | delete(url, handler) { 51 | return this.handle([Delete, Path(url)], handler) 52 | } 53 | 54 | get(url, handler) { 55 | return this.handle([Get, Path(url)], handler) 56 | } 57 | 58 | head(url, handler) { 59 | return this.handle([Head, Path(url)], handler) 60 | } 61 | 62 | options(url, handler) { 63 | return this.handle([Options, Path(url)], handler) 64 | } 65 | 66 | patch(url, handler) { 67 | return this.handle([Patch, Path(url)], handler) 68 | } 69 | 70 | post(url, handler) { 71 | return this.handle([Post, Path(url)], handler) 72 | } 73 | 74 | put(url, handler) { 75 | return this.handle([Put, Path(url)], handler) 76 | } 77 | 78 | trace(url, handler) { 79 | return this.handle([Trace, Path(url)], handler) 80 | } 81 | 82 | all(handler) { 83 | return this.handle([], handler) 84 | } 85 | 86 | route(req) { 87 | const route = this.resolve(req) 88 | 89 | if (route) { 90 | return route.handler(req) 91 | } 92 | 93 | return new Response('resource not found', { 94 | status: 404, 95 | statusText: 'not found', 96 | headers: { 97 | 'content-type': 'text/plain', 98 | }, 99 | }) 100 | } 101 | 102 | /** 103 | * resolve returns the matching route for a request that returns 104 | * true for all conditions (if any). 105 | */ 106 | resolve(req) { 107 | return this.routes.find(r => { 108 | if (!r.conditions || (Array.isArray(r) && !r.conditions.length)) { 109 | return true 110 | } 111 | 112 | if (typeof r.conditions === 'function') { 113 | return r.conditions(req) 114 | } 115 | 116 | return r.conditions.every(c => c(req)) 117 | }) 118 | } 119 | } 120 | 121 | module.exports = Router 122 | -------------------------------------------------------------------------------- /src/config.js: -------------------------------------------------------------------------------- 1 | export const ALLOWED_GROUPS = [0000000, -101010101] 2 | export const BOT_TOKEN = '0000000000000000000000000000000000000' -------------------------------------------------------------------------------- /src/handlers/teleWorker.js: -------------------------------------------------------------------------------- 1 | import Telegram from '../utils/telegram' 2 | import { ALLOWED_GROUPS } from '../config' 3 | import { BOT_TOKEN } from '../config' 4 | 5 | export default async request => { 6 | try { 7 | const body = await request.json() 8 | 9 | const MESSAGE = { 10 | id: body.message.chat.id, 11 | message_id: body.message.message_id, 12 | first_name: body.message.chat.first_name, 13 | last_name: body.message.chat.last_name, 14 | text: body.message.text.toLowerCase() 15 | } 16 | 17 | const headers = new Headers({'content-type': 'application/json;charset=UTF-8'}) 18 | const RETURN_FORBIDDEN = new Response('Oops...', {status: 403, statusText: 'Forbidden'}) 19 | const RETURN_OK = new Response('working', {status: 200, headers: headers}) 20 | 21 | const bot = new Telegram(BOT_TOKEN, MESSAGE) 22 | 23 | /******************************/ 24 | /****** pseudo-security *******/ 25 | if (!(ALLOWED_GROUPS.includes(MESSAGE.id))) { 26 | bot.sendText("Sorry, I can't talk to strangers") 27 | return RETURN_OK 28 | } 29 | /*** end of pseudo-security ***/ 30 | /******************************/ 31 | 32 | 33 | if ( MESSAGE.text.startsWith('/start')) { 34 | bot.sendText('Hey!') 35 | return RETURN_OK 36 | 37 | } else if ( MESSAGE.text.startsWith('/help')) { 38 | let media = { 39 | caption: 'Maybe this can help you...', 40 | url: 'https://media.giphy.com/media/pYw2Mmqkncj2E/giphy.gif' 41 | } 42 | bot.sendPhoto(media) 43 | return RETURN_OK 44 | 45 | } else if ( MESSAGE.text.startsWith('/hey')) { 46 | let media = { 47 | caption: 'Heeeeeeeeeeeeey!!', 48 | url: 'https://i.pinimg.com/originals/77/32/a0/7732a07aff30ef054bee2c26428ca7b8.jpg' 49 | } 50 | bot.sendPhoto(media) 51 | return RETURN_OK 52 | 53 | } 54 | 55 | return RETURN_OK 56 | 57 | } catch (err) { 58 | return new Response(err.stack || err) 59 | } 60 | } 61 | -------------------------------------------------------------------------------- /src/utils/telegram.js: -------------------------------------------------------------------------------- 1 | class Telegram { 2 | constructor(token, message) { 3 | this.token = token 4 | this.message = message 5 | this.telegramUrl = 'https://api.telegram.org/bot' + this.token 6 | this.header = { 7 | headers: { 8 | 'content-type': 'application/json;charset=UTF-8', 9 | }, 10 | } 11 | } 12 | 13 | sendText (text) { 14 | this.text = text 15 | let postUrl = this.telegramUrl + '/sendMessage?chat_id=' + this.message.id + '&parse_mode=markdown&text=' + this.text 16 | let res = fetch(postUrl, this.header) 17 | 18 | return res 19 | } 20 | 21 | sendAnimation (animation) { 22 | this.animation = animation 23 | let postUrl = this.telegramUrl + '/sendAnimation?chat_id=' + this.message.id 24 | 25 | if (this.animation.caption) { 26 | postUrl += '&caption=' + this.animation.caption 27 | } 28 | postUrl += '&animation=' + this.animation.url 29 | let res = fetch(postUrl, this.header) 30 | 31 | return res 32 | } 33 | 34 | sendPhoto (photo) { 35 | this.photo = photo 36 | let postUrl = this.telegramUrl + '/sendPhoto?chat_id=' + this.message.id 37 | 38 | if (this.photo.caption) { 39 | postUrl += '&caption=' + this.photo.caption 40 | } 41 | postUrl += '&photo=' + this.photo.url 42 | let res = fetch(postUrl, this.header) 43 | 44 | return res 45 | } 46 | 47 | sendVideo (video) { 48 | this.video = video 49 | let postUrl = this.telegramUrl + '/sendVideo?chat_id=' + this.message.id 50 | 51 | if (this.video.caption) { 52 | postUrl += '&caption=' + this.video.url 53 | } 54 | 55 | postUrl += '&video=' + this.photo 56 | let res = fetch(postUrl, this.header) 57 | 58 | return res 59 | } 60 | 61 | getUpdate () { 62 | let postUrl = this.telegramUrl + '/getUpdates' 63 | let res = fetch(postUrl, this.header) 64 | 65 | return res 66 | } 67 | 68 | } 69 | 70 | module.exports = Telegram 71 | -------------------------------------------------------------------------------- /wrangler.toml: -------------------------------------------------------------------------------- 1 | workers_dev = false 2 | name = "teleworker_bot" 3 | type = "webpack" 4 | zone_id = "cloudflare-zone-id" 5 | account_id = "cloudflare-account-id" 6 | route = "https://bot.yourdomain.com" 7 | --------------------------------------------------------------------------------