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Add robots.txt, cache discord/telegram separately

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dangered wolf 2022-07-16 14:07:35 -04:00
parent 1241dabc00
commit 80ca9ffca6
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GPG key ID: 41E4D37680ED8B58
2 changed files with 33 additions and 5 deletions
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11
src/constants.ts
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@ -46,5 +46,14 @@ export const Constants = {
'x-powered-by': '🏳️‍⚧️ Trans Rights',
'cache-control': 'max-age=604800'
},
DEFAULT_COLOR: '#10A3FF'
DEFAULT_COLOR: '#10A3FF',
ROBOTS_TXT: `User-agent: *
Allow: /$
Allow: /*/status
Allow: /*/status/
Allow: /owoembed
Allow: /owoembed/
Allow: /watch?v=dQw4w9WgXcQ
Disallow: /doing-harm-to-others
Disallow: /taking-over-the-world`
};

27
src/server.ts
View file

@ -123,17 +123,36 @@ router.get('/owoembed', async (request: any) => {
router.get('/:handle', profileRequest);
router.get('/:handle/', profileRequest);
router.all('*', async request => {
router.get('*', async request => {
return Response.redirect(Constants.REDIRECT_URL, 307);
});
const cacheWrapper = async (event: FetchEvent): Promise<Response> => {
const { request } = event;
const userAgent = request.headers.get('User-Agent') || '';
// https://developers.cloudflare.com/workers/examples/cache-api/
const cacheUrl = new URL(request.url);
const url = new URL(request.url);
const cacheUrl = new URL(
userAgent.includes('Telegram')
? `${request.url}&telegram`
: userAgent.includes('Discord')
? `${request.url}&discord`
: request.url
);
console.log('cacheUrl', cacheUrl);
const cacheKey = new Request(cacheUrl.toString(), request);
const cache = caches.default;
/* Itty-router doesn't seem to like routing file names for some reason */
if (cacheUrl.pathname === '/robots.txt') {
return new Response(Constants.ROBOTS_TXT, {
headers: Constants.RESPONSE_HEADERS,
status: 200
});
}
switch (request.method) {
case 'GET':
let cachedResponse = await cache.match(cacheKey);
@ -153,12 +172,12 @@ const cacheWrapper = async (event: FetchEvent): Promise<Response> => {
event.waitUntil(cache.put(cacheKey, response.clone()));
return response;
/* Telegram sends this from Webpage Bot, and we respect it.
/* Telegram sends this from Webpage Bot, and Cloudflare sends it if we purge cache, and we respect it.
PURGE is not defined in an RFC, but other servers like Nginx apparently use it. */
case 'PURGE':
console.log('Purging cache as requested');
await cache.delete(cacheKey);
return new Response('', { status: 204 });
return new Response('', { status: 200 });
case 'HEAD':
return new Response('', {
headers: Constants.RESPONSE_HEADERS,