50 lines
1.3 KiB
TypeScript
50 lines
1.3 KiB
TypeScript
import { URL } from 'node:url';
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import { toASCII } from 'punycode';
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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 type { Config } from '@/config.js';
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import { bindThis } from '@/decorators.js';
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@Injectable()
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export class UtilityService {
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constructor(
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@Inject(DI.config)
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private config: Config,
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) {
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}
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@bindThis
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public getFullApAccount(username: string, host: string | null): string {
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return host ? `${username}@${this.toPuny(host)}` : `${username}@${this.toPuny(this.config.host)}`;
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}
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@bindThis
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public isSelfHost(host: string | null): boolean {
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if (host == null) return true;
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return this.toPuny(this.config.host) === this.toPuny(host);
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}
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@bindThis
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public isBlockedHost(blockedHosts: string[], host: string | null): boolean {
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if (host == null) return false;
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return blockedHosts.some(x => `.${host.toLowerCase()}`.endsWith(`.${x}`));
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}
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@bindThis
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public extractDbHost(uri: string): string {
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const url = new URL(uri);
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return this.toPuny(url.hostname);
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}
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@bindThis
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public toPuny(host: string): string {
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return toASCII(host.toLowerCase());
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}
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@bindThis
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public toPunyNullable(host: string | null | undefined): string | null {
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if (host == null) return null;
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return toASCII(host.toLowerCase());
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}
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}
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