なんかもうめっちゃ変えた

packages/backend/src/server/NodeinfoServerService.ts

@@ -0,0 +1,129 @@
+import { Inject, Injectable } from '@nestjs/common';
+import Router from '@koa/router';
+import { IsNull, MoreThan } from 'typeorm';
+import { DI } from '@/di-symbols.js';
+import { NotesRepository, UsersRepository } from '@/models/index.js';
+import { Config } from '@/config.js';
+import { MetaService } from '@/core/MetaService.js';
+import { MAX_NOTE_TEXT_LENGTH } from '@/const.js';
+import { Cache } from '@/misc/cache.js';
+import { UserEntityService } from '@/core/entities/UserEntityService.js';
+
+const nodeinfo2_1path = '/nodeinfo/2.1';
+const nodeinfo2_0path = '/nodeinfo/2.0';
+
+@Injectable()
+export class NodeinfoServerService {
+	constructor(
+		@Inject(DI.config)
+		private config: Config,
+
+		@Inject(DI.usersRepository)
+		private usersRepository: UsersRepository,
+
+		@Inject(DI.notesRepository)
+		private notesRepository: NotesRepository,
+
+		private userEntityService: UserEntityService,
+		private metaService: MetaService,
+	) {
+	}
+
+	public getLinks() {
+		return [/* (awaiting release) {
+			rel: 'http://nodeinfo.diaspora.software/ns/schema/2.1',
+			href: config.url + nodeinfo2_1path
+		}, */{
+				rel: 'http://nodeinfo.diaspora.software/ns/schema/2.0',
+				href: this.config.url + nodeinfo2_0path,
+			}];
+	}
+
+	public createRouter() {
+		const router = new Router();
+
+		const nodeinfo2 = async () => {
+			const now = Date.now();
+			const [
+				meta,
+				total,
+				activeHalfyear,
+				activeMonth,
+				localPosts,
+			] = await Promise.all([
+				this.metaService.fetch(true),
+				this.usersRepository.count({ where: { host: IsNull() } }),
+				this.usersRepository.count({ where: { host: IsNull(), lastActiveDate: MoreThan(new Date(now - 15552000000)) } }),
+				this.usersRepository.count({ where: { host: IsNull(), lastActiveDate: MoreThan(new Date(now - 2592000000)) } }),
+				this.notesRepository.count({ where: { userHost: IsNull() } }),
+			]);
+
+			const proxyAccount = meta.proxyAccountId ? await this.userEntityService.pack(meta.proxyAccountId).catch(() => null) : null;
+
+			return {
+				software: {
+					name: 'misskey',
+					version: this.config.version,
+					repository: meta.repositoryUrl,
+				},
+				protocols: ['activitypub'],
+				services: {
+					inbound: [] as string[],
+					outbound: ['atom1.0', 'rss2.0'],
+				},
+				openRegistrations: !meta.disableRegistration,
+				usage: {
+					users: { total, activeHalfyear, activeMonth },
+					localPosts,
+					localComments: 0,
+				},
+				metadata: {
+					nodeName: meta.name,
+					nodeDescription: meta.description,
+					maintainer: {
+						name: meta.maintainerName,
+						email: meta.maintainerEmail,
+					},
+					langs: meta.langs,
+					tosUrl: meta.ToSUrl,
+					repositoryUrl: meta.repositoryUrl,
+					feedbackUrl: meta.feedbackUrl,
+					disableRegistration: meta.disableRegistration,
+					disableLocalTimeline: meta.disableLocalTimeline,
+					disableGlobalTimeline: meta.disableGlobalTimeline,
+					emailRequiredForSignup: meta.emailRequiredForSignup,
+					enableHcaptcha: meta.enableHcaptcha,
+					enableRecaptcha: meta.enableRecaptcha,
+					maxNoteTextLength: MAX_NOTE_TEXT_LENGTH,
+					enableTwitterIntegration: meta.enableTwitterIntegration,
+					enableGithubIntegration: meta.enableGithubIntegration,
+					enableDiscordIntegration: meta.enableDiscordIntegration,
+					enableEmail: meta.enableEmail,
+					enableServiceWorker: meta.enableServiceWorker,
+					proxyAccountName: proxyAccount ? proxyAccount.username : null,
+					themeColor: meta.themeColor ?? '#86b300',
+				},
+			};
+		};
+
+		const cache = new Cache<Awaited<ReturnType<typeof nodeinfo2>>>(1000 * 60 * 10);
+
+		router.get(nodeinfo2_1path, async ctx => {
+			const base = await cache.fetch(null, () => nodeinfo2());
+
+			ctx.body = { version: '2.1', ...base };
+			ctx.set('Cache-Control', 'public, max-age=600');
+		});
+
+		router.get(nodeinfo2_0path, async ctx => {
+			const base = await cache.fetch(null, () => nodeinfo2());
+
+			delete base.software.repository;
+
+			ctx.body = { version: '2.0', ...base };
+			ctx.set('Cache-Control', 'public, max-age=600');
+		});
+
+		return router;
+	}
+}