don't unfollow anyone when suspending a user

packages/backend/src/core/UserSuspendService.ts

@@ -6,7 +6,7 @@
 import { Inject, Injectable } from '@nestjs/common';
 import { Not, IsNull } from 'typeorm';
 import type { FollowingsRepository, FollowRequestsRepository, UsersRepository } from '@/models/_.js';
-import type { MiUser } from '@/models/User.js';
+import { MiUser } from '@/models/User.js';
 import { QueueService } from '@/core/QueueService.js';
 import { GlobalEventService } from '@/core/GlobalEventService.js';
 import { DI } from '@/di-symbols.js';
@@ -17,9 +17,15 @@ import { RelationshipJobData } from '@/queue/types.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
 import { isSystemAccount } from '@/misc/is-system-account.js';
 import { CacheService } from '@/core/CacheService.js';
+import { LoggerService } from '@/core/LoggerService.js';
+import type Logger from '@/logger.js';
+import { renderInlineError } from '@/misc/render-inline-error.js';
+import { trackPromise } from '@/misc/promise-tracker.js';
 
 @Injectable()
 export class UserSuspendService {
+	private readonly logger: Logger;
+
 	constructor(
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
@@ -36,7 +42,10 @@ export class UserSuspendService {
 		private apRendererService: ApRendererService,
 		private moderationLogService: ModerationLogService,
 		private readonly cacheService: CacheService,
+
+		loggerService: LoggerService,
 	) {
+		this.logger = loggerService.getLogger('user-suspend');
 	}
 
 	@bindThis
@@ -47,16 +56,16 @@ export class UserSuspendService {
 			isSuspended: true,
 		});
 
-		this.moderationLogService.log(moderator, 'suspend', {
+		await this.moderationLogService.log(moderator, 'suspend', {
 			userId: user.id,
 			userUsername: user.username,
 			userHost: user.host,
 		});
 
-		(async () => {
-			await this.postSuspend(user).catch(e => {});
-			await this.unFollowAll(user).catch(e => {});
-		})();
+		trackPromise((async () => {
+			await this.postSuspend(user);
+			await this.freezeAll(user);
+		})().catch(e => this.logger.error(`Error suspending user ${user.id}: ${renderInlineError(e)}`)));
 	}
 
 	@bindThis
@@ -65,33 +74,36 @@ export class UserSuspendService {
 			isSuspended: false,
 		});
 
-		this.moderationLogService.log(moderator, 'unsuspend', {
+		await this.moderationLogService.log(moderator, 'unsuspend', {
 			userId: user.id,
 			userUsername: user.username,
 			userHost: user.host,
 		});
 
-		(async () => {
-			await this.postUnsuspend(user).catch(e => {});
-		})();
+		trackPromise((async () => {
+			await this.postUnsuspend(user);
+			await this.unFreezeAll(user);
+		})().catch(e => this.logger.error(`Error un-suspending for user ${user.id}: ${renderInlineError(e)}`)));
 	}
 
 	@bindThis
 	private async postSuspend(user: { id: MiUser['id']; host: MiUser['host'] }): Promise<void> {
 		this.globalEventService.publishInternalEvent('userChangeSuspendedState', { id: user.id, isSuspended: true });
 
+		/*
 		this.followRequestsRepository.delete({
 			followeeId: user.id,
 		});
 		this.followRequestsRepository.delete({
 			followerId: user.id,
 		});
+		*/
 
 		if (this.userEntityService.isLocalUser(user)) {
 			// 知り得る全SharedInboxにDelete配信
 			const content = this.apRendererService.addContext(this.apRendererService.renderDelete(this.userEntityService.genLocalUserUri(user.id), user));
 
-			const queue: string[] = [];
+			const queue = new Map<string, boolean>();
 
 			const followings = await this.followingsRepository.find({
 				where: [
@@ -104,12 +116,12 @@ export class UserSuspendService {
 			const inboxes = followings.map(x => x.followerSharedInbox ?? x.followeeSharedInbox);
 
 			for (const inbox of inboxes) {
-				if (inbox != null && !queue.includes(inbox)) queue.push(inbox);
+				if (inbox != null) {
+					queue.set(inbox, true);
+				}
 			}
 
-			for (const inbox of queue) {
-				this.queueService.deliver(user, content, inbox, true);
-			}
+			await this.queueService.deliverMany(user, content, queue);
 		}
 	}
 
@@ -121,7 +133,7 @@ export class UserSuspendService {
 			// 知り得る全SharedInboxにUndo Delete配信
 			const content = this.apRendererService.addContext(this.apRendererService.renderUndo(this.apRendererService.renderDelete(this.userEntityService.genLocalUserUri(user.id), user), user));
 
-			const queue: string[] = [];
+			const queue = new Map<string, boolean>();
 
 			const followings = await this.followingsRepository.find({
 				where: [
@@ -134,12 +146,12 @@ export class UserSuspendService {
 			const inboxes = followings.map(x => x.followerSharedInbox ?? x.followeeSharedInbox);
 
 			for (const inbox of inboxes) {
-				if (inbox != null && !queue.includes(inbox)) queue.push(inbox);
+				if (inbox != null) {
+					queue.set(inbox, true);
+				}
 			}
 
-			for (const inbox of queue) {
-				this.queueService.deliver(user as any, content, inbox, true);
-			}
+			await this.queueService.deliverMany(user, content, queue);
 		}
 	}
 
@@ -160,4 +172,36 @@ export class UserSuspendService {
 		}
 		this.queueService.createUnfollowJob(jobs);
 	}
+
+	@bindThis
+	private async freezeAll(user: MiUser): Promise<void> {
+		// Freeze follow relations with all remote users
+		await this.followingsRepository
+			.createQueryBuilder('following')
+			.orWhere({
+				followeeId: user.id,
+				followerHost: Not(IsNull()),
+			})
+			.update({
+				isFollowerHibernated: true,
+			})
+			.execute();
+	}
+
+	@bindThis
+	private async unFreezeAll(user: MiUser): Promise<void> {
+		// Restore follow relations with all remote users
+		await this.followingsRepository
+			.createQueryBuilder('following')
+			.innerJoin(MiUser, 'follower', 'user.id = following.followerId')
+			.andWhere('follower.isHibernated = false') // Don't unfreeze if the follower is *actually* frozen
+			.andWhere({
+				followeeId: user.id,
+				followerHost: Not(IsNull()),
+			})
+			.update({
+				isFollowerHibernated: false,
+			})
+			.execute();
+	}
 }