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import { Inject, Injectable } from '@nestjs/common';
import { IdService } from '@/core/IdService.js';
import type { CacheableUser, User } from '@/models/entities/User.js';
import type { Blocking } from '@/models/entities/Blocking.js';
import { QueueService } from '@/core/QueueService.js';
import { GlobalEventService } from '@/core/GlobalEventService.js';
import PerUserFollowingChart from '@/core/chart/charts/per-user-following.js';
import { DI } from '@/di-symbols.js';
import logger from '@/logger.js';
import type { UsersRepository, FollowingsRepository, FollowRequestsRepository, BlockingsRepository, UserListsRepository, UserListJoiningsRepository } from '@/models/index.js';
import { UserEntityService } from './entities/UserEntityService.js';
import { WebhookService } from './WebhookService.js';
import { ApRendererService } from './remote/activitypub/ApRendererService.js';
@Injectable()
export class UserBlockingService {
constructor(
@Inject(DI.usersRepository)
private usersRepository: UsersRepository,
@Inject(DI.followingsRepository)
private followingsRepository: FollowingsRepository,
@Inject(DI.followRequestsRepository)
private followRequestsRepository: FollowRequestsRepository,
@Inject(DI.blockingsRepository)
private blockingsRepository: BlockingsRepository,
@Inject(DI.userListsRepository)
private userListsRepository: UserListsRepository,
@Inject(DI.userListJoiningsRepository)
private userListJoiningsRepository: UserListJoiningsRepository,
private userEntityService: UserEntityService,
private idService: IdService,
private queueService: QueueService,
private globalEventServie: GlobalEventService,
private webhookService: WebhookService,
private apRendererService: ApRendererService,
private perUserFollowingChart: PerUserFollowingChart,
) {
}
public async block(blocker: User, blockee: User) {
await Promise.all([
this.cancelRequest(blocker, blockee),
this.cancelRequest(blockee, blocker),
this.unFollow(blocker, blockee),
this.unFollow(blockee, blocker),
this.removeFromList(blockee, blocker),
]);
const blocking = {
id: this.idService.genId(),
createdAt: new Date(),
blocker,
blockerId: blocker.id,
blockee,
blockeeId: blockee.id,
} as Blocking;
await this.blockingsRepository.insert(blocking);
if (this.userEntityService.isLocalUser(blocker) && this.userEntityService.isRemoteUser(blockee)) {
const content = this.apRendererService.renderActivity(this.apRendererService.renderBlock(blocking));
this.queueService.deliver(blocker, content, blockee.inbox);
}
}
private async cancelRequest(follower: User, followee: User) {
const request = await this.followRequestsRepository.findOneBy({
followeeId: followee.id,
followerId: follower.id,
});
if (request == null) {
return;
}
await this.followRequestsRepository.delete({
followeeId: followee.id,
followerId: follower.id,
});
if (this.userEntityService.isLocalUser(followee)) {
this.userEntityService.pack(followee, followee, {
detail: true,
}).then(packed => this.globalEventServie.publishMainStream(followee.id, 'meUpdated', packed));
}
if (this.userEntityService.isLocalUser(follower)) {
this.userEntityService.pack(followee, follower, {
detail: true,
}).then(async packed => {
this.globalEventServie.publishUserEvent(follower.id, 'unfollow', packed);
this.globalEventServie.publishMainStream(follower.id, 'unfollow', packed);
const webhooks = (await this.webhookService.getActiveWebhooks()).filter(x => x.userId === follower.id && x.on.includes('unfollow'));
for (const webhook of webhooks) {
this.queueService.webhookDeliver(webhook, 'unfollow', {
user: packed,
});
}
});
}
// リモートにフォローリクエストをしていたらUndoFollow送信
if (this.userEntityService.isLocalUser(follower) && this.userEntityService.isRemoteUser(followee)) {
const content = this.apRendererService.renderActivity(this.apRendererService.renderUndo(this.apRendererService.renderFollow(follower, followee), follower));
this.queueService.deliver(follower, content, followee.inbox);
}
// リモートからフォローリクエストを受けていたらReject送信
if (this.userEntityService.isRemoteUser(follower) && this.userEntityService.isLocalUser(followee)) {
const content = this.apRendererService.renderActivity(this.apRendererService.renderReject(this.apRendererService.renderFollow(follower, followee, request.requestId!), followee));
this.queueService.deliver(followee, content, follower.inbox);
}
}
private async unFollow(follower: User, followee: User) {
const following = await this.followingsRepository.findOneBy({
followerId: follower.id,
followeeId: followee.id,
});
if (following == null) {
return;
}
await Promise.all([
this.followingsRepository.delete(following.id),
this.usersRepository.decrement({ id: follower.id }, 'followingCount', 1),
this.usersRepository.decrement({ id: followee.id }, 'followersCount', 1),
this.perUserFollowingChart.update(follower, followee, false),
]);
// Publish unfollow event
if (this.userEntityService.isLocalUser(follower)) {
this.userEntityService.pack(followee, follower, {
detail: true,
}).then(async packed => {
this.globalEventServie.publishUserEvent(follower.id, 'unfollow', packed);
this.globalEventServie.publishMainStream(follower.id, 'unfollow', packed);
const webhooks = (await this.webhookService.getActiveWebhooks()).filter(x => x.userId === follower.id && x.on.includes('unfollow'));
for (const webhook of webhooks) {
this.queueService.webhookDeliver(webhook, 'unfollow', {
user: packed,
});
}
});
}
// リモートにフォローをしていたらUndoFollow送信
if (this.userEntityService.isLocalUser(follower) && this.userEntityService.isRemoteUser(followee)) {
const content = this.apRendererService.renderActivity(this.apRendererService.renderUndo(this.apRendererService.renderFollow(follower, followee), follower));
this.queueService.deliver(follower, content, followee.inbox);
}
}
private async removeFromList(listOwner: User, user: User) {
const userLists = await this.userListsRepository.findBy({
userId: listOwner.id,
});
for (const userList of userLists) {
await this.userListJoiningsRepository.delete({
userListId: userList.id,
userId: user.id,
});
}
}
public async unblock(blocker: CacheableUser, blockee: CacheableUser) {
const blocking = await this.blockingsRepository.findOneBy({
blockerId: blocker.id,
blockeeId: blockee.id,
});
if (blocking == null) {
logger.warn('ブロック解除がリクエストされましたがブロックしていませんでした');
return;
}
// Since we already have the blocker and blockee, we do not need to fetch
// them in the query above and can just manually insert them here.
blocking.blocker = blocker;
blocking.blockee = blockee;
await this.blockingsRepository.delete(blocking.id);
// deliver if remote bloking
if (this.userEntityService.isLocalUser(blocker) && this.userEntityService.isRemoteUser(blockee)) {
const content = this.apRendererService.renderActivity(this.apRendererService.renderUndo(this.apRendererService.renderBlock(blocking), blocker));
this.queueService.deliver(blocker, content, blockee.inbox);
}
}
}
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