なんかもうめっちゃ変えた

packages/backend/src/server/api/integration/TwitterServerService.ts

@@ -0,0 +1,230 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Redis } from 'ioredis';
+import Router from '@koa/router';
+import { v4 as uuid } from 'uuid';
+import { IsNull } from 'typeorm';
+import autwh from 'autwh';
+import { Config } from '@/config.js';
+import { UserProfilesRepository, UsersRepository } from '@/models/index.js';
+import { DI } from '@/di-symbols.js';
+import { HttpRequestService } from '@/core/HttpRequestService.js';
+import type { ILocalUser } from '@/models/entities/User.js';
+import { GlobalEventService } from '@/core/GlobalEventService.js';
+import { MetaService } from '@/core/MetaService.js';
+import { UserEntityService } from '@/core/entities/UserEntityService.js';
+import { SigninService } from '../SigninService.js';
+import type Koa from 'koa';
+
+@Injectable()
+export class TwitterServerService {
+	constructor(
+		@Inject(DI.config)
+		private config: Config,
+
+		@Inject(DI.redis)
+		private redisClient: Redis,
+
+		@Inject(DI.usersRepository)
+		private usersRepository: UsersRepository,
+
+		@Inject(DI.userProfilesRepository)
+		private userProfilesRepository: UserProfilesRepository,
+
+		private userEntityService: UserEntityService,
+		private httpRequestService: HttpRequestService,
+		private globalEventService: GlobalEventService,
+		private metaService: MetaService,
+		private signinService: SigninService,
+	) {
+	}
+
+	public create() {
+		const router = new Router();
+
+		router.get('/disconnect/twitter', async ctx => {
+			if (!this.#compareOrigin(ctx)) {
+				ctx.throw(400, 'invalid origin');
+				return;
+			}
+
+			const userToken = this.#getUserToken(ctx);
+			if (userToken == null) {
+				ctx.throw(400, 'signin required');
+				return;
+			}
+
+			const user = await this.usersRepository.findOneByOrFail({
+				host: IsNull(),
+				token: userToken,
+			});
+
+			const profile = await this.userProfilesRepository.findOneByOrFail({ userId: user.id });
+
+			delete profile.integrations.twitter;
+
+			await this.userProfilesRepository.update(user.id, {
+				integrations: profile.integrations,
+			});
+
+			ctx.body = 'Twitterの連携を解除しました :v:';
+
+			// Publish i updated event
+			this.globalEventService.publishMainStream(user.id, 'meUpdated', await this.userEntityService.pack(user, user, {
+				detail: true,
+				includeSecrets: true,
+			}));
+		});
+
+		const getTwAuth = async () => {
+			const meta = await this.metaService.fetch(true);
+
+			if (meta.enableTwitterIntegration && meta.twitterConsumerKey && meta.twitterConsumerSecret) {
+				return autwh({
+					consumerKey: meta.twitterConsumerKey,
+					consumerSecret: meta.twitterConsumerSecret,
+					callbackUrl: `${this.config.url}/api/tw/cb`,
+				});
+			} else {
+				return null;
+			}
+		};
+
+		router.get('/connect/twitter', async ctx => {
+			if (!this.#compareOrigin(ctx)) {
+				ctx.throw(400, 'invalid origin');
+				return;
+			}
+
+			const userToken = this.#getUserToken(ctx);
+			if (userToken == null) {
+				ctx.throw(400, 'signin required');
+				return;
+			}
+
+			const twAuth = await getTwAuth();
+			const twCtx = await twAuth!.begin();
+			this.redisClient.set(userToken, JSON.stringify(twCtx));
+			ctx.redirect(twCtx.url);
+		});
+
+		router.get('/signin/twitter', async ctx => {
+			const twAuth = await getTwAuth();
+			const twCtx = await twAuth!.begin();
+
+			const sessid = uuid();
+
+			this.redisClient.set(sessid, JSON.stringify(twCtx));
+
+			ctx.cookies.set('signin_with_twitter_sid', sessid, {
+				path: '/',
+				secure: this.config.url.startsWith('https'),
+				httpOnly: true,
+			});
+
+			ctx.redirect(twCtx.url);
+		});
+
+		router.get('/tw/cb', async ctx => {
+			const userToken = this.#getUserToken(ctx);
+
+			const twAuth = await getTwAuth();
+
+			if (userToken == null) {
+				const sessid = ctx.cookies.get('signin_with_twitter_sid');
+
+				if (sessid == null) {
+					ctx.throw(400, 'invalid session');
+					return;
+				}
+
+				const get = new Promise<any>((res, rej) => {
+					this.redisClient.get(sessid, async (_, twCtx) => {
+						res(twCtx);
+					});
+				});
+
+				const twCtx = await get;
+
+				const verifier = ctx.query.oauth_verifier;
+				if (!verifier || typeof verifier !== 'string') {
+					ctx.throw(400, 'invalid session');
+					return;
+				}
+
+				const result = await twAuth!.done(JSON.parse(twCtx), verifier);
+
+				const link = await this.userProfilesRepository.createQueryBuilder()
+					.where('"integrations"->\'twitter\'->>\'userId\' = :id', { id: result.userId })
+					.andWhere('"userHost" IS NULL')
+					.getOne();
+
+				if (link == null) {
+					ctx.throw(404, `@${result.screenName}と連携しているMisskeyアカウントはありませんでした...`);
+					return;
+				}
+
+				this.signinService.signin(ctx, await this.usersRepository.findOneBy({ id: link.userId }) as ILocalUser, true);
+			} else {
+				const verifier = ctx.query.oauth_verifier;
+
+				if (!verifier || typeof verifier !== 'string') {
+					ctx.throw(400, 'invalid session');
+					return;
+				}
+
+				const get = new Promise<any>((res, rej) => {
+					this.redisClient.get(userToken, async (_, twCtx) => {
+						res(twCtx);
+					});
+				});
+
+				const twCtx = await get;
+
+				const result = await twAuth!.done(JSON.parse(twCtx), verifier);
+
+				const user = await this.usersRepository.findOneByOrFail({
+					host: IsNull(),
+					token: userToken,
+				});
+
+				const profile = await this.userProfilesRepository.findOneByOrFail({ userId: user.id });
+
+				await this.userProfilesRepository.update(user.id, {
+					integrations: {
+						...profile.integrations,
+						twitter: {
+							accessToken: result.accessToken,
+							accessTokenSecret: result.accessTokenSecret,
+							userId: result.userId,
+							screenName: result.screenName,
+						},
+					},
+				});
+
+				ctx.body = `Twitter: @${result.screenName} を、Misskey: @${user.username} に接続しました！`;
+
+				// Publish i updated event
+				this.globalEventService.publishMainStream(user.id, 'meUpdated', await this.userEntityService.pack(user, user, {
+					detail: true,
+					includeSecrets: true,
+				}));
+			}
+		});
+
+		return router;
+	}
+
+	#getUserToken(ctx: Koa.BaseContext): string | null {
+		return ((ctx.headers['cookie'] ?? '').match(/igi=(\w+)/) ?? [null, null])[1];
+	}
+	
+	#compareOrigin(ctx: Koa.BaseContext): boolean {
+		function normalizeUrl(url?: string): string {
+			return url ? url.endsWith('/') ? url.substr(0, url.length - 1) : url : '';
+		}
+	
+		const referer = ctx.headers['referer'];
+	
+		return (normalizeUrl(referer) === normalizeUrl(this.config.url));
+	}
+}