34 lines
844 B
TypeScript
34 lines
844 B
TypeScript
import { URL } from 'node:url';
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import { getJson } from '@/misc/fetch.js';
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import { query as urlQuery } from '@/prelude/url.js';
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type ILink = {
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href: string;
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rel?: string;
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};
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type IWebFinger = {
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links: ILink[];
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subject: string;
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};
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export default async function(query: string): Promise<IWebFinger> {
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const url = genUrl(query);
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return await getJson(url, 'application/jrd+json, application/json') as IWebFinger;
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}
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function genUrl(query: string) {
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if (query.match(/^https?:\/\//)) {
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const u = new URL(query);
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return `${u.protocol}//${u.hostname}/.well-known/webfinger?` + urlQuery({ resource: query });
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}
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const m = query.match(/^([^@]+)@(.*)/);
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if (m) {
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const hostname = m[2];
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return `https://${hostname}/.well-known/webfinger?` + urlQuery({ resource: `acct:${query}` });
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}
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throw new Error(`Invalid query (${query})`);
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}
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