105 lines
3.9 KiB
JavaScript
105 lines
3.9 KiB
JavaScript
const fs = require('fs-extra'); // Reading README.md
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const path = require('path'); // Get the correct path for README.md
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const fetch = require('node-fetch'); // Make calls to Reddit from Node.js
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const qs = require('qs'); // Properly build a query for node-fetch POST
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// REDDIT_: For authentication with Reddit API. Oauth MUST be used. ID and Secret come from a "script" app type.
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const REDDIT_USER = process.env.REDDIT_USER || 'username';
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const REDDIT_PASS = process.env.REDDIT_PASS || 'password';
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const REDDIT_CLIENT_ID = process.env.REDDIT_CLIENT_ID || 'clientid';
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const REDDIT_CLIENT_SECRET = process.env.REDDIT_CLIENT_SECRET || 'clientsecret';
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// WIKI_: For the Reddit Wiki
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const WIKI_SUBREDDIT = 'privacy';
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const WIKI_PAGE = 'de-go-git';
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const WIKI_REASON = 'Automated edit from GitHub repo: https://github.com/tycrek/degoogle';
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// Helps POST data be submitted properly
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const CONTENT_TYPE = 'application/x-www-form-urlencoded';
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updateWiki();
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/**
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* Update the Reddit wiki
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*/
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function updateWiki() {
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// Endpoints for each of our fetches to Reddit
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let endpoints = {
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revisions: `https://old.reddit.com/r/${WIKI_SUBREDDIT}/wiki/revisions/${WIKI_PAGE}.json`,
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token: 'https://www.reddit.com/api/v1/access_token',
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edit: `https://oauth.reddit.com/r/${WIKI_SUBREDDIT}/api/wiki/edit`
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};
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// Initial basic authorization for getting the Oauth token
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let basicAuth = `Basic ${Buffer.from(REDDIT_CLIENT_ID + ':' + REDDIT_CLIENT_SECRET).toString('base64')}`;
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let lastId, token;
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getLastRevision(endpoints.revisions)
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.then((mLastId) => lastId = mLastId)
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.then(() => getToken(endpoints.token, basicAuth))
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.then((mToken) => token = mToken)
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.then(() => putWiki(endpoints.edit, lastId, token))
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.catch((err) => (console.error(err), process.exit(1)));
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}
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/**
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* Get the last revision ID on the Wiki. Required otherwise editing the wiki fails
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* @param {String} endpoint Endpoint of where to get the ID's
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*/
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function getLastRevision(endpoint) {
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return new Promise((resolve, reject) => {
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fetch(endpoint)
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.then((response) => response.json())
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.then((json) => json.data.children[0].id) // children[0] is the most recent edit
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.then((lastId) => resolve(lastId))
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.catch((err) => reject(err));
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});
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}
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/**
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* Gets an Oauth token used to edit the Wiki
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* @param {String} endpoint Endpoint of where to get the token
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* @param {String} auth Initial authorization data to get the better Oauth data
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*/
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function getToken(endpoint, auth) {
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return new Promise((resolve, reject) => {
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fetch(endpoint, {
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method: 'POST',
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headers: { 'Authorization': auth, 'Content-Type': CONTENT_TYPE },
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body: qs.stringify({ grant_type: 'password', username: REDDIT_USER, password: REDDIT_PASS })
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})
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.then((response) => response.json())
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.then((json) => json.access_token)
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.then((token) => resolve(token))
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.catch((err) => reject(err));
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});
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}
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/**
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* Post the contents from the README into the wiki
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* @param {String} endpoint Endpoint for editing the wiki
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* @param {String} lastId Revision ID for the Wiki
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* @param {String} token Oauth token for authenticating with the Reddit API
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*/
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function putWiki(endpoint, lastId, token) {
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return new Promise((resolve, reject) => {
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fetch(endpoint, {
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method: 'POST',
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headers: { 'Authorization': `bearer ${token}`, 'Content-Type': CONTENT_TYPE },
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body: qs.stringify({
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content: fs.readFileSync(path.join(__dirname, 'README.md')).toString(),
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page: WIKI_PAGE,
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reason: WIKI_REASON,
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previous: lastId
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})
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})
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.then((response) => response.json())
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.then((json) => {
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if (Object.keys(json).length == 0) resolve();
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else throw Error(json);
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})
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.catch((err) => reject(err));
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});
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}
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