42 lines
1.2 KiB
TypeScript
42 lines
1.2 KiB
TypeScript
/**
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* Recognises links to this site's own pages. The self provider previews them
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* from the database, remote/fetch.ts accepts them as dump links even on a
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* private host such as localhost, and migration 0021 rewrote the v3 ones in
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* stored text.
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*
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* @module
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*/
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import { FRONTEND_URL, PUBLIC_URL } from "../config.ts";
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import { parsePagePath } from "../../shared/paths.ts";
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const SELF_HOSTS = new Set(
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[PUBLIC_URL, FRONTEND_URL].flatMap((u) => {
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try {
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return [new URL(u).host.toLowerCase()];
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} catch {
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return [];
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}
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}),
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);
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/**
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* Checks whether `host` (with its port, as `URL.host` gives it) is where this
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* site is served, at its public URL or its frontend's.
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*/
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export function isSelfHost(host: string): boolean {
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return SELF_HOSTS.has(host.toLowerCase());
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}
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/**
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* Checks whether `url` links to one of this site's own dump, user or playlist
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* pages, by `parsePagePath`; an editor doesn't count. Matched on the
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* host as well as the path: `/@bob` on some other site is someone else's
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* page, not ours.
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*/
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export function isSelfUrl(url: URL): boolean {
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if (!isSelfHost(url.host)) return false;
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const page = parsePagePath(url.pathname);
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return !!page && !(page.kind !== "user" && page.edit);
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}
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