const config = require('../config'); const overridingRoutes = require('express').Router(); overridingRoutes.all('*', (req, res, next) => { let themeOverride = req.query.theme; if (themeOverride) { // Convert Dark to dark since the stylesheet has it lower case themeOverride = themeOverride.toLowerCase(); // This override here will set it for the current request req.cookies.theme = themeOverride; // this will set it for future requests res.cookie('theme', themeOverride, { maxAge: 31536000, httpOnly: true }); } else if (!req.cookies.theme && req.cookies.theme !== '') { req.cookies.theme = config.theme; } let flairsOverride = req.query.flairs; if (flairsOverride) { req.cookies.flairs = flairsOverride; res.cookie('flairs', flairsOverride, { maxAge: 31536000, httpOnly: true }); } let nsfwEnabledOverride = req.query.nsfw_enabled; if (nsfwEnabledOverride) { req.cookies.nsfw_enabled = nsfwEnabledOverride; res.cookie('nsfw_enabled', nsfwEnabledOverride, { maxAge: 31536000, httpOnly: true, }); } let highlightControversialOverride = req.query.highlight_controversial; if (highlightControversialOverride) { req.cookies.highlight_controversial = highlightControversialOverride; res.cookie('highlight_controversial', highlightControversialOverride, { maxAge: 31536000, httpOnly: true, }); } let postMediaMaxHeight = req.query.post_media_max_height; if (postMediaMaxHeight) { if ( config.post_media_max_heights.hasOwnProperty(postMediaMaxHeight) || !isNaN(postMediaMaxHeight) ) { req.cookies.post_media_max_height = postMediaMaxHeight; res.cookie('post_media_max_height', postMediaMaxHeight, { maxAge: 31536000, httpOnly: true, }); } } let collapseChildComments = req.query.collapse_child_comments; if (collapseChildComments) { req.cookies.collapse_child_comments = collapseChildComments; res.cookie('collapse_child_comments', collapseChildComments, { maxAge: 31536000, httpOnly: true, }); } let showUpvotedPercentage = req.query.show_upvoted_percentage; if (showUpvotedPercentage) { req.cookies.show_upvoted_percentage = showUpvotedPercentage; res.cookie('show_upvoted_percentage', showUpvotedPercentage, { maxAge: 31536000, httpOnly: true, }); } else if (!req.cookies.show_upvoted_percentage) { if (config.show_upvoted_percentage) { req.cookies.show_upvoted_percentage = 'true'; } } let domainTwitter = req.query.domain_twitter; if (domainTwitter) { req.cookies.domain_twitter = domainTwitter; res.cookie('domain_twitter', domainTwitter, { maxAge: 31536000, httpOnly: true, }); } let domainYoutube = req.query.domain_youtube; if (domainYoutube) { req.cookies.domain_youtube = domainYoutube; res.cookie('domain_youtube', domainYoutube, { maxAge: 31536000, httpOnly: true, }); } let domainInstagram = req.query.domain_instagram; if (domainInstagram) { req.cookies.domain_instagram = domainInstagram; res.cookie('domain_instagram', domainInstagram, { maxAge: 31536000, httpOnly: true, }); } let videosMuted = req.query.videos_muted; if (videosMuted) { req.cookies.videos_muted = videosMuted; res.cookie('videos_muted', videosMuted, { maxAge: 31536000, httpOnly: true, }); } if (!config.rate_limiting) { return next(); } const valid_reddit_starts = [ '/https://old.reddit.com', '/https://reddit.com', '/https://www.reddit.com', '/old.reddit.com', '/reddit.com', '/www.reddit.com', ]; for (var i = 0; i < valid_reddit_starts.length; i++) { if (req.url.startsWith(valid_reddit_starts[i])) { req.url = req.url.substring(1); const redditRegex = /([A-z.]+\.)?(reddit(\.com))/gm; let teddified_url = req.url.replace(redditRegex, ''); if (teddified_url.includes('://')) { teddified_url = teddified_url.split('://')[1]; } if (teddified_url == '') { teddified_url = '/'; } return res.redirect(teddified_url); } } if (config.rate_limiting.enabled) { /** * This route enforces request limits based on an IP address if * config.rate_limiting.enabled is true. By default it's false. */ let ip = String( req.headers['x-forwarded-for'] || req.connection.remoteAddress || 'unknown' ); if (ip === 'unknown') { return next(); } if (ratelimit_counts[ip] == undefined) { ratelimit_counts[ip] = 0; } if (ratelimit_timestamps[ip] == undefined) { ratelimit_timestamps[ip] = Date.now(); } let diff = Date.now() - ratelimit_timestamps[ip]; let credit = (diff / 60000) * config.rate_limiting.limit_after_limited; ratelimit_counts[ip] -= credit; if (ratelimit_counts[ip] < 0) { ratelimit_counts[ip] = 0; } ratelimit_counts[ip]++; ratelimit_timestamps[ip] = Date.now(); if (ratelimit_counts[ip] > config.rate_limiting.initial_limit) { console.log(`RATE LIMITED IP ADDRESS: ${ip}`); return res.send( `Hold your horses! You have hit the request limit. You should be able to refresh this page in a couple of seconds. If you think you are wrongfully limited, create an issue at https://codeberg.org/teddit/teddit. Rate limiting is highly experimental feature.` ); } else { return next(); } } else { return next(); } }); module.exports = overridingRoutes;