mirror of
https://codeberg.org/keyoxide/doipjs.git
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110 lines
3.2 KiB
JavaScript
110 lines
3.2 KiB
JavaScript
/*
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Copyright 2022 Maximilian Siling
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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const axios = require('axios')
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const validator = require('validator')
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/**
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* @module fetcher/telegram
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*/
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/**
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* The single request's timeout value in milliseconds
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* This fetcher makes two requests in total
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* @constant {number} timeout
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*/
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module.exports.timeout = 5000
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/**
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* Execute a fetch request
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* @function
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* @async
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* @param {object} data - Data used in the request
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* @param {string} data.chat - Telegram public chat username
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* @param {string} data.user - Telegram user username
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* @param {object} opts - Options used to enable the request
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* @param {string} opts.claims.telegram.token - The Telegram Bot API token
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* @returns {object|string}
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*/
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module.exports.fn = async (data, opts) => {
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let timeoutHandle
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const timeoutPromise = new Promise((resolve, reject) => {
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timeoutHandle = setTimeout(
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() => reject(new Error('Request was timed out')),
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data.fetcherTimeout ? data.fetcherTimeout : module.exports.timeout
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)
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})
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const apiPromise = (method) => new Promise((resolve, reject) => {
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try {
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validator.isAscii(opts.claims.telegram.token)
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} catch (err) {
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throw new Error(`Telegram fetcher was not set up properly (${err.message})`)
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}
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if (!data.chat || !data.user) {
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reject(new Error('Both chat name and user name must be provided'))
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return
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}
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const url = `https://api.telegram.org/bot${opts.claims.telegram.token}/${method}?chat_id=@${data.chat}`
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axios.get(url, {
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headers: {
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Accept: 'application/json',
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'User-Agent': `doipjs/${require('../../package.json').version}`
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},
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validateStatus: (status) => status === 200
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})
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.then(res => resolve(res.data))
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.catch(e => reject(e))
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})
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const fetchPromise = apiPromise('getChatAdministrators').then(admins => {
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if (!admins.ok) {
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throw new Error('Request to get chat administrators failed')
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}
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return apiPromise('getChat').then(chat => {
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if (!chat.ok) {
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throw new Error('Request to get chat info failed')
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}
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let creator
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for (const admin of admins.result) {
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if (admin.status === 'creator') {
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creator = admin.user.username
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}
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}
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if (!chat.result.description) {
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throw new Error('There is no chat description')
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}
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if (creator !== data.user) {
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throw new Error('User doesn\'t match')
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}
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return {
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user: creator,
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text: chat.result.description
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}
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})
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})
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return Promise.race([fetchPromise, timeoutPromise]).then((result) => {
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clearTimeout(timeoutHandle)
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return result
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})
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}
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