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regex guard around opengraph routes

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Siddharth Singh 2024-08-06 00:45:28 +05:30
parent f48d8e0a66
commit 2283f64204
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2 changed files with 8 additions and 4 deletions
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4
src/config.ts
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@ -250,6 +250,10 @@ class Conf {
static get cronEnabled(): boolean { static get cronEnabled(): boolean {
return optionalBooleanSchema.parse(Deno.env.get('CRON_ENABLED')) ?? true; return optionalBooleanSchema.parse(Deno.env.get('CRON_ENABLED')) ?? true;
} }
static get opengraphRouteRegex(): string {
return Deno.env.get('OPENGRAPH_ROUTE_REGEX') ||
'googlebot|bingbot|yandex|baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterestbot|slackbot|vkShare|W3C_Validator|whatsapp|mastodon|pleroma|Discordbot|AhrefsBot|SEMrushBot|MJ12bot|SeekportBot|Synapse|Matrix';
}
/** Path to the custom policy module. Must be an absolute path, https:, npm:, or jsr: URI. */ /** Path to the custom policy module. Must be an absolute path, https:, npm:, or jsr: URI. */
static get policy(): string { static get policy(): string {
return Deno.env.get('DITTO_POLICY') || new URL('../data/policy.ts', import.meta.url).pathname; return Deno.env.get('DITTO_POLICY') || new URL('../data/policy.ts', import.meta.url).pathname;

8
src/controllers/frontend.ts
View file

@ -18,10 +18,6 @@ const console = new Stickynotes('ditto:frontend');
/** Placeholder to find & replace with metadata. */ /** Placeholder to find & replace with metadata. */
const META_PLACEHOLDER = '<!--server-generated-meta-->' as const; const META_PLACEHOLDER = '<!--server-generated-meta-->' as const;
/*
* TODO: implement caching for posts (LRUCache)
*/
async function buildTemplateOpts(params: PathParams, url: string): Promise<OpenGraphTemplateOpts> { async function buildTemplateOpts(params: PathParams, url: string): Promise<OpenGraphTemplateOpts> {
const store = await Storages.db(); const store = await Storages.db();
const meta = await getInstanceMetadata(store); const meta = await getInstanceMetadata(store);
@ -70,6 +66,10 @@ async function buildTemplateOpts(params: PathParams, url: string): Promise<OpenG
export const frontendController: AppMiddleware = async (c, next) => { export const frontendController: AppMiddleware = async (c, next) => {
try { try {
const content = await Deno.readTextFile(new URL('../../public/index.html', import.meta.url)); const content = await Deno.readTextFile(new URL('../../public/index.html', import.meta.url));
const shouldInject = new RegExp(Conf.opengraphRouteRegex, 'i');
if (!shouldInject) {
return c.html(content);
}
if (content.includes(META_PLACEHOLDER)) { if (content.includes(META_PLACEHOLDER)) {
const params = getPathParams(c.req.path); const params = getPathParams(c.req.path);
if (params) { if (params) {