49 lines
1.2 KiB
TypeScript
49 lines
1.2 KiB
TypeScript
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import { URL } from 'node:url';
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import { Inject, Injectable } from '@nestjs/common';
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import { DI } from '@/di-symbols.js';
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import { Config } from '@/config.js';
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import { query as urlQuery } from '@/misc/prelude/url.js';
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import { HttpRequestService } from '@/core/HttpRequestService.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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@Injectable()
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export class WebfingerService {
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constructor(
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@Inject(DI.config)
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private config: Config,
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private httpRequestService: HttpRequestService,
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) {
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}
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public async webfinger(query: string): Promise<IWebFinger> {
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const url = this.#genUrl(query);
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return await this.httpRequestService.getJson(url, 'application/jrd+json, application/json') as IWebFinger;
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}
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#genUrl(query: string): 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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}
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