Merge bb921297c7 into 794cb9ffe2

CHANGELOG.md

@@ -277,6 +277,7 @@
 - Fix: アンテナ・クリップ・リスト・ウェブフックがロールポリシーの上限より一つ多く作れてしまうのを修正 (#14036)
 - Fix: notRespondingSinceが実装される前に不通になったインスタンスが自動的に配信停止にならない (#14059)
 - Fix: FTT有効時、タイムライン用エンドポイントで`sinceId`にキャッシュ内最古のものより古いものを指定した場合に正しく結果が返ってこない問題を修正
+- Fix: レートリミットのfactorが二回適用されて二乗の効果がある問題を修正 (#13997)
 - Fix: 自分以外のクリップ内のノート個数が見えることがあるのを修正
 - Fix: 空文字列のリアクションはフォールバックされるように
 - Fix: リノートにリアクションできないように

packages/backend/src/server/api/ApiCallService.ts

@@ -326,19 +326,15 @@ export class ApiCallService implements OnApplicationShutdown {
 
 			if (factor > 0) {
 				// Rate limit
-				await this.rateLimiterService.limit(limit as IEndpointMeta['limit'] & { key: NonNullable<string> }, limitActor, factor).catch(err => {
+				const rateLimit = await this.rateLimiterService.limit(limit as IEndpointMeta['limit'] & { key: NonNullable<string> }, limitActor, factor);
-					if ('info' in err) {
+				if (rateLimit != null) {
-						// errはLimiter.LimiterInfoであることが期待される
+					throw new ApiError({
-						throw new ApiError({
+						message: 'Rate limit exceeded. Please try again later.',
-							message: 'Rate limit exceeded. Please try again later.',
+						code: 'RATE_LIMIT_EXCEEDED',
-							code: 'RATE_LIMIT_EXCEEDED',
+						id: 'd5826d14-3982-4d2e-8011-b9e9f02499ef',
-							id: 'd5826d14-3982-4d2e-8011-b9e9f02499ef',
+						httpStatusCode: 429,
-							httpStatusCode: 429,
+					}, rateLimit.info);
-						}, err.info);
+				}
-					} else {
-						throw new TypeError('information must be a rate-limiter information.');
-					}
-				});
 			}
 		}
 

packages/backend/src/server/api/RateLimiterService.ts

@@ -12,6 +12,14 @@ import { LoggerService } from '@/core/LoggerService.js';
 import { bindThis } from '@/decorators.js';
 import type { IEndpointMeta } from './endpoints.js';
 
+type RateLimitInfo = {
+	code: 'BRIEF_REQUEST_INTERVAL',
+	info: Limiter.LimiterInfo,
+} | {
+	code: 'RATE_LIMIT_EXCEEDED',
+	info: Limiter.LimiterInfo,
+}
+
 @Injectable()
 export class RateLimiterService {
 	private logger: Logger;
@@ -31,77 +39,57 @@ export class RateLimiterService {
 	}
 
 	@bindThis
-	public limit(limitation: IEndpointMeta['limit'] & { key: NonNullable<string> }, actor: string, factor = 1) {
+	private checkLimiter(options: Limiter.LimiterOption): Promise<Limiter.LimiterInfo> {
-		{
+		return new Promise<Limiter.LimiterInfo>((resolve, reject) => {
-			if (this.disabled) {
+			new Limiter(options).get((err, info) => {
-				return Promise.resolve();
+				if (err) {
-			}
+					return reject(err);
+				}
+				resolve(info);
+			});
+		});
+	}
 
-			// Short-term limit
+	@bindThis
-			const min = new Promise<void>((ok, reject) => {
+	public async limit(limitation: IEndpointMeta['limit'] & { key: NonNullable<string> }, actor: string, factor = 1): Promise<RateLimitInfo | null> {
-				const minIntervalLimiter = new Limiter({
+		if (this.disabled) {
-					id: `${actor}:${limitation.key}:min`,
+			return null;
-					duration: limitation.minInterval! * factor,
+		}
-					max: 1,
-					db: this.redisClient,
-				});
 
-				minIntervalLimiter.get((err, info) => {
+		// Short-term limit
-					if (err) {
+		if (limitation.minInterval != null) {
-						return reject({ code: 'ERR', info });
+			const info = await this.checkLimiter({
-					}
+				id: `${actor}:${limitation.key}:min`,
-
+				duration: limitation.minInterval * factor,
-					this.logger.debug(`${actor} ${limitation.key} min remaining: ${info.remaining}`);
+				max: 1,
-
+				db: this.redisClient,
-					if (info.remaining === 0) {
-						return reject({ code: 'BRIEF_REQUEST_INTERVAL', info });
-					} else {
-						if (hasLongTermLimit) {
-							return max.then(ok, reject);
-						} else {
-							return ok();
-						}
-					}
-				});
 			});
 
-			// Long term limit
+			this.logger.debug(`${actor} ${limitation.key} min remaining: ${info.remaining}`);
-			const max = new Promise<void>((ok, reject) => {
-				const limiter = new Limiter({
-					id: `${actor}:${limitation.key}`,
-					duration: limitation.duration! * factor,
-					max: limitation.max! / factor,
-					db: this.redisClient,
-				});
 
-				limiter.get((err, info) => {
+			if (info.remaining === 0) {
-					if (err) {
+				// eslint-disable-next-line no-throw-literal
-						return reject({ code: 'ERR', info });
+				return { code: 'BRIEF_REQUEST_INTERVAL', info };
-					}
-
-					this.logger.debug(`${actor} ${limitation.key} max remaining: ${info.remaining}`);
-
-					if (info.remaining === 0) {
-						return reject({ code: 'RATE_LIMIT_EXCEEDED', info });
-					} else {
-						return ok();
-					}
-				});
-			});
-
-			const hasShortTermLimit = typeof limitation.minInterval === 'number';
-
-			const hasLongTermLimit =
-				typeof limitation.duration === 'number' &&
-				typeof limitation.max === 'number';
-
-			if (hasShortTermLimit) {
-				return min;
-			} else if (hasLongTermLimit) {
-				return max;
-			} else {
-				return Promise.resolve();
 			}
 		}
+
+		// Long term limit
+		if (limitation.duration != null && limitation.max != null) {
+			const info = await this.checkLimiter({
+				id: `${actor}:${limitation.key}`,
+				duration: limitation.duration,
+				max: limitation.max / factor,
+				db: this.redisClient,
+			});
+
+			this.logger.debug(`${actor} ${limitation.key} max remaining: ${info.remaining}`);
+
+			if (info.remaining === 0) {
+				// eslint-disable-next-line no-throw-literal
+				return { code: 'RATE_LIMIT_EXCEEDED', info };
+			}
+		}
+
+		return null;
 	}
 }

packages/backend/src/server/api/SigninApiService.ts

@@ -89,10 +89,9 @@ export class SigninApiService {
 			return { error };
 		}
 
-		try {
 		// not more than 1 attempt per second and not more than 10 attempts per hour
-			await this.rateLimiterService.limit({ key: 'signin', duration: 60 * 60 * 1000, max: 10, minInterval: 1000 }, getIpHash(request.ip));
+		const rateLimit = await this.rateLimiterService.limit({ key: 'signin', duration: 60 * 60 * 1000, max: 10, minInterval: 1000 }, getIpHash(request.ip));
-		} catch (err) {
+		if (rateLimit != null) {
 			reply.code(429);
 			return {
 				error: {