teddit-reddit-frontend-alte.../routes/home.js

269 lines
8.4 KiB
JavaScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

const config = require('../config');
const { redis, fetch } = require('../app');
const homeRoute = require('express').Router();
const processJsonSubreddit = require('../inc/processJsonSubreddit.js');
const tedditApiSubreddit = require('../inc/teddit_api/handleSubreddit.js')();
const processMoreComments = require('../inc/processMoreComments.js')();
homeRoute.get('/', (req, res, next) => {
if (
(config.clean_homepage && req.cookies.prefer_frontpage !== 'true') ||
(!config.clean_homepage && req.cookies.prefer_frontpage == 'undefined')
) {
return res.render('homepage', {
user_preferences: req.cookies,
instance_config: config,
});
}
next();
});
homeRoute.get([`/:sort?`, '/frontpage'], async (req, res, next) => {
let past = req.query.t;
let before = req.query.before;
let after = req.query.after;
let sortby = req.params.sort || '';
let api_req = req.query.api;
let api_type = req.query.type;
let api_target = req.query.target;
let proxyable =
sortby.includes('.jpg') ||
sortby.includes('.png') ||
sortby.includes('.jpeg') ||
sortby.includes('.mp4') ||
sortby.includes('.gif') ||
sortby.includes('.gifv')
? true
: false;
if (proxyable) {
let media_url = '';
const replacable_media_domains = ['i.redd.it', 'v.redd.it', 'external-preview.redd.it', 'preview.redd.it']
if (req.query.teddit_proxy) {
if (replacable_media_domains.includes(req.query.teddit_proxy)) {
let full_url = req.protocol + '://' + req.get('host') + req.originalUrl;
let u = new URL(full_url);
let filename = u.pathname || '';
let query = u.search || '';
if (query != '') {
let params = new URLSearchParams(query);
params.delete('teddit_proxy');
query = '?' + params.toString();
}
media_url = `https://${req.query.teddit_proxy}${filename}${query}`;
}
} else {
let params = new URLSearchParams(req.query).toString();
media_url = `https://preview.redd.it/${sortby}?${params}`;
if (media_url.includes('teddit_proxy')) {
// if the URL includes teddit_proxy query param, remove everything after it
media_url = media_url.split('%3Fteddit_proxy')[0];
}
}
let proxied_media = await downloadAndSave(media_url);
if (proxied_media) {
return res.redirect(proxied_media);
} else {
return res.redirect('/');
}
}
let is_comment =
sortby.length == 6 &&
sortby != "rising"
? true
: false;
if (is_comment) {
return res.redirect('/comments/' + sortby);
}
let d = `&after=${after}`;
if (before) {
d = `&before=${before}`;
}
if (sortby == '' || sortby == 'frontpage') {
sortby = 'hot';
}
if (
[
'apple-touch-icon.png',
'apple-touch-icon-precomposed.png',
'apple-touch-icon-120x120.png',
'apple-touch-icon-120x120-precomposed.png',
].includes(sortby)
) {
return res.sendStatus(404); // return 404 on shitty apple favicon stuff
}
if (
!['new', 'rising', 'controversial', 'top', 'gilded', 'hot'].includes(sortby)
) {
console.log(`Got invalid sort.`, req.originalUrl);
return res.redirect('/');
}
if (past) {
if (sortby === 'controversial' || sortby === 'top') {
if (!['hour', 'day', 'week', 'month', 'year', 'all'].includes(past)) {
console.error(`Got invalid past.`, req.originalUrl);
return res.redirect(`/`);
}
} else {
past = undefined;
}
} else {
if (sortby === 'controversial' || sortby === 'top') {
past = 'day';
}
}
if (req.query.hasOwnProperty('api')) api_req = true;
else api_req = false;
let raw_json = api_req && req.query.raw_json == '1' ? 1 : 0;
let key = `/after:${after}:before:${before}:sort:${sortby}:past:${past}:raw_json:${raw_json}`;
let subbed_subreddits = req.cookies.subbed_subreddits;
let get_subbed_subreddits = false;
if (subbed_subreddits && Array.isArray(subbed_subreddits)) {
get_subbed_subreddits = true;
subbed_subreddits = subbed_subreddits.join('+');
key = `${subbed_subreddits.toLowerCase()}:${after}:${before}:sort:${sortby}:past:${past}:raw_json:${raw_json}`;
}
redis.get(key, (error, json) => {
if (error) {
console.error('Error getting the frontpage key from redis.', error);
return res.render('frontpage', {
json: null,
user_preferences: req.cookies,
instance_config: config,
});
}
if (json) {
console.log('Got frontpage key from redis.');
(async () => {
if (api_req) {
return handleTedditApiSubreddit(
json,
req,
res,
'redis',
api_type,
api_target,
'/',
'full'
);
} else {
let processed_json = await processJsonSubreddit(
json,
'redis',
null,
req.cookies
);
return res.render('frontpage', {
json: processed_json,
sortby: sortby,
past: past,
user_preferences: req.cookies,
redis_key: key,
instance_config: config,
});
}
})();
} else {
let url = '';
if (config.use_reddit_oauth) {
if (get_subbed_subreddits)
url = `https://oauth.reddit.com/r/${subbed_subreddits}/${sortby}?api_type=json&count=25&g=GLOBAL&t=${past}${d}&raw_json=${raw_json}`;
else
url = `https://oauth.reddit.com/${sortby}?api_type=json&g=GLOBAL&t=${past}${d}&raw_json=${raw_json}`;
} else {
if (get_subbed_subreddits)
url = `https://reddit.com/r/${subbed_subreddits}/${sortby}.json?api_type=json&count=25&g=GLOBAL&t=${past}${d}&raw_json=${raw_json}`;
else
url = `https://reddit.com/${sortby}.json?g=GLOBAL&t=${past}${d}&raw_json=${raw_json}`;
}
fetch(encodeURI(url), redditApiGETHeaders())
.then((result) => {
if (result.status === 200) {
result.json().then((json) => {
redis.setex(
key,
config.setexs.frontpage,
JSON.stringify(json),
(error) => {
if (error) {
console.error(
'Error setting the frontpage key to redis.',
error
);
return res.render('frontpage', {
json: null,
user_preferences: req.cookies,
instance_config: config,
});
} else {
console.log('Fetched the frontpage from Reddit.');
(async () => {
if (api_req) {
return handleTedditApiSubreddit(
json,
req,
res,
'from_online',
api_type,
api_target,
'/',
'full'
);
} else {
let processed_json = await processJsonSubreddit(
json,
'from_online',
null,
req.cookies
);
return res.render('frontpage', {
json: processed_json,
sortby: sortby,
past: past,
user_preferences: req.cookies,
redis_key: key,
instance_config: config,
});
}
})();
}
}
);
});
} else {
console.error(
`Something went wrong while fetching data from Reddit. ${result.status} ${result.statusText}`
);
console.error(config.reddit_api_error_text);
return res.render('frontpage', {
json: null,
http_status_code: result.status,
user_preferences: req.cookies,
instance_config: config,
});
}
})
.catch((error) => {
console.error('Error fetching the frontpage JSON file.', error);
});
}
});
});
module.exports = homeRoute;