mistykey/packages/backend/src/core/ReactionService.ts
2025-11-05 19:21:46 -05:00

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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Inject, Injectable, OnModuleInit } from '@nestjs/common';
import { ModuleRef } from '@nestjs/core';
import { DI } from '@/di-symbols.js';
import type { EmojisRepository, NoteReactionsRepository, UsersRepository, NotesRepository, MiMeta } from '@/models/_.js';
import { IdentifiableError } from '@/misc/identifiable-error.js';
import type { MiRemoteUser, MiUser } from '@/models/User.js';
import { isLocalUser, isRemoteUser } from '@/models/User.js';
import type { MiNote } from '@/models/Note.js';
import { IdService } from '@/core/IdService.js';
import { MiNoteReaction } from '@/models/NoteReaction.js';
import { isDuplicateKeyValueError } from '@/misc/is-duplicate-key-value-error.js';
import { GlobalEventService } from '@/core/GlobalEventService.js';
import { NotificationService } from '@/core/NotificationService.js';
import PerUserReactionsChart from '@/core/chart/charts/per-user-reactions.js';
import { emojiRegex } from '@/misc/emoji-regex.js';
import { ApDeliverManagerService } from '@/core/activitypub/ApDeliverManagerService.js';
import { ApRendererService } from '@/core/activitypub/ApRendererService.js';
import { bindThis } from '@/decorators.js';
import { UtilityService } from '@/core/UtilityService.js';
import { UserBlockingService } from '@/core/UserBlockingService.js';
import { CustomEmojiService, encodeEmojiKey } from '@/core/CustomEmojiService.js';
import { RoleService } from '@/core/RoleService.js';
import { FeaturedService } from '@/core/FeaturedService.js';
import { trackPromise } from '@/misc/promise-tracker.js';
import { isQuote, isRenote } from '@/misc/is-renote.js';
import { ReactionsBufferingService } from '@/core/ReactionsBufferingService.js';
import { PER_NOTE_REACTION_USER_PAIR_CACHE_MAX } from '@/const.js';
import { CacheService } from '@/core/CacheService.js';
import { NoteVisibilityService } from '@/core/NoteVisibilityService.js';
import { TimeService } from '@/core/TimeService.js';
import type { DataSource } from 'typeorm';
const FALLBACK = '\u2764';
const legacies: Record<string, string> = {
'like': '👍',
'love': '\u2764', // ハート、異体字セレクタを入れない
'laugh': '😆',
'hmm': '🤔',
'surprise': '😮',
'congrats': '🎉',
'angry': '💢',
'confused': '😥',
'rip': '😇',
'pudding': '🍮',
'star': '⭐',
};
type DecodedReaction = {
/**
* リアクション名 (Unicode Emoji or ':name@hostname' or ':name@.')
*/
reaction: string;
/**
* name (カスタム絵文字の場合name, Emojiクエリに使う)
*/
name?: string;
/**
* host (カスタム絵文字の場合host, Emojiクエリに使う)
*/
host?: string | null;
};
const isCustomEmojiRegexp = /^:([\p{Letter}\p{Number}\p{Mark}_+-]+)(?:@\.)?:$/u;
const decodeCustomEmojiRegexp = /^:([\p{Letter}\p{Number}\p{Mark}_+-]+)(?:@([\w.-]+))?:$/u;
@Injectable()
export class ReactionService implements OnModuleInit {
private roleService: RoleService;
constructor(
private readonly moduleRef: ModuleRef,
@Inject(DI.meta)
private meta: MiMeta,
@Inject(DI.usersRepository)
private usersRepository: UsersRepository,
@Inject(DI.notesRepository)
private notesRepository: NotesRepository,
@Inject(DI.noteReactionsRepository)
private noteReactionsRepository: NoteReactionsRepository,
@Inject(DI.emojisRepository)
private emojisRepository: EmojisRepository,
@Inject(DI.db)
private readonly db: DataSource,
private utilityService: UtilityService,
private customEmojiService: CustomEmojiService,
private userBlockingService: UserBlockingService,
private reactionsBufferingService: ReactionsBufferingService,
private idService: IdService,
private featuredService: FeaturedService,
private globalEventService: GlobalEventService,
private apRendererService: ApRendererService,
private apDeliverManagerService: ApDeliverManagerService,
private notificationService: NotificationService,
private perUserReactionsChart: PerUserReactionsChart,
private readonly cacheService: CacheService,
private readonly noteVisibilityService: NoteVisibilityService,
private readonly timeService: TimeService,
) {
}
@bindThis
onModuleInit() {
this.roleService = this.moduleRef.get('RoleService');
}
@bindThis
public async create(user: { id: MiUser['id']; host: MiUser['host']; isBot: MiUser['isBot'] }, note: MiNote, _reaction?: string | null) {
// Check blocking
if (note.userId !== user.id) {
const blocked = await this.userBlockingService.checkBlocked(note.userId, user.id);
if (blocked) {
throw new IdentifiableError('e70412a4-7197-4726-8e74-f3e0deb92aa7', 'Note not accessible for you.');
}
}
// check visibility
const { accessible } = await this.noteVisibilityService.checkNoteVisibilityAsync(note, user);
if (!accessible) {
throw new IdentifiableError('68e9d2d1-48bf-42c2-b90a-b20e09fd3d48', 'Note not accessible for you.');
}
// Check if note is Renote
if (isRenote(note) && !isQuote(note)) {
throw new IdentifiableError('12c35529-3c79-4327-b1cc-e2cf63a71925', 'You cannot react to Renote.');
}
let reaction = _reaction ?? FALLBACK;
if (note.reactionAcceptance === 'likeOnly' || ((note.reactionAcceptance === 'likeOnlyForRemote' || note.reactionAcceptance === 'nonSensitiveOnlyForLocalLikeOnlyForRemote') && (user.host != null))) {
reaction = '\u2764';
} else if (_reaction != null) {
const custom = reaction.match(isCustomEmojiRegexp);
if (custom) {
const reacterHost = this.utilityService.toPunyNullable(user.host);
const name = custom[1];
const emojiKey = encodeEmojiKey({ name, host: reacterHost });
const emoji = await this.customEmojiService.emojisByKeyCache.fetchMaybe(emojiKey);
if (emoji) {
if (emoji.roleIdsThatCanBeUsedThisEmojiAsReaction.length === 0 || (await this.roleService.getUserRoles(user.id)).some(r => emoji.roleIdsThatCanBeUsedThisEmojiAsReaction.includes(r.id))) {
reaction = reacterHost ? `:${name}@${reacterHost}:` : `:${name}:`;
// センシティブ
if ((note.reactionAcceptance === 'nonSensitiveOnly' || note.reactionAcceptance === 'nonSensitiveOnlyForLocalLikeOnlyForRemote') && emoji.isSensitive) {
reaction = FALLBACK;
}
// for media silenced host, custom emoji reactions are not allowed
if (reacterHost != null && this.utilityService.isMediaSilencedHost(this.meta.mediaSilencedHosts, reacterHost)) {
reaction = FALLBACK;
}
} else {
// リアクションとして使う権限がない
reaction = FALLBACK;
}
} else {
reaction = FALLBACK;
}
} else {
reaction = this.normalize(reaction);
}
}
const record: MiNoteReaction = {
id: this.idService.gen(),
noteId: note.id,
userId: user.id,
reaction,
};
const result = await this.db.transaction(async tem => {
await tem.createQueryBuilder(MiNoteReaction, 'noteReaction')
.insert()
.values(record)
.orIgnore()
.execute();
return await tem.createQueryBuilder(MiNoteReaction, 'noteReaction')
.select()
.where({ noteId: note.id, userId: user.id })
.getOneOrFail();
});
if (result.id !== record.id) {
// Conflict with the same ID => nothing to do.
if (result.reaction === record.reaction) {
return;
}
// 別のリアクションがすでにされていたら置き換える
await this.delete(user, note);
await this.noteReactionsRepository.insert(record);
}
// Increment reactions count
if (this.meta.enableReactionsBuffering) {
await this.reactionsBufferingService.create(note.id, user.id, reaction, note.reactionAndUserPairCache);
} else {
const sql = `jsonb_set("reactions", '{${reaction}}', (COALESCE("reactions"->>'${reaction}', '0')::int + 1)::text::jsonb)`;
await this.notesRepository.createQueryBuilder().update()
.set({
reactions: () => sql,
...(note.reactionAndUserPairCache.length < PER_NOTE_REACTION_USER_PAIR_CACHE_MAX ? {
reactionAndUserPairCache: () => `array_append("reactionAndUserPairCache", '${user.id}/${reaction}')`,
} : {}),
})
.where('id = :id', { id: note.id })
.execute();
}
this.usersRepository.update({ id: user.id }, { updatedAt: this.timeService.date });
// 30%の確率、セルフではない、3日以内に投稿されたートの場合ハイライト用ランキング更新
if (
Math.random() < 0.3 &&
note.userId !== user.id &&
(this.timeService.now - this.idService.parse(note.id).date.getTime()) < 1000 * 60 * 60 * 24 * 3
) {
const author = await this.cacheService.findUserById(note.userId);
if (author.isExplorable) {
const policies = await this.roleService.getUserPolicies(author);
if (policies.canTrend) {
if (note.channelId != null) {
if (note.replyId == null) {
this.featuredService.updateInChannelNotesRanking(note.channelId, note, 1);
}
} else {
if (note.visibility === 'public' && note.userHost == null && note.replyId == null) {
this.featuredService.updateGlobalNotesRanking(note, 1);
this.featuredService.updatePerUserNotesRanking(note.userId, note, 1);
}
}
}
}
}
if (this.meta.enableChartsForRemoteUser || (user.host == null)) {
this.perUserReactionsChart.update(user, note);
}
// カスタム絵文字リアクションだったら絵文字情報も送る
const decodedReaction = this.decodeReaction(reaction);
const customEmojiKey = decodedReaction.name == null ? null : encodeEmojiKey({ name: decodedReaction.name, host: decodedReaction.host ?? null });
const customEmoji = customEmojiKey == null ? null :
await this.customEmojiService.emojisByKeyCache.fetchMaybe(customEmojiKey);
this.globalEventService.publishNoteStream(note.id, 'reacted', {
reaction: decodedReaction.reaction,
emoji: customEmoji != null ? {
name: customEmoji.host ? `${customEmoji.name}@${customEmoji.host}` : `${customEmoji.name}@.`,
// || emoji.originalUrl してるのは後方互換性のためpublicUrlはstringなので??はだめ)
url: customEmoji.publicUrl || customEmoji.originalUrl,
} : null,
userId: user.id,
});
// リアクションされたユーザーがローカルユーザーなら通知を作成
if (note.userHost === null) {
const threadId = note.threadId ?? note.id;
const isThreadMuted = await this.cacheService.threadMutingsCache.fetch(note.userId).then(ms => ms.has(threadId));
if (!isThreadMuted) {
this.notificationService.createNotification(note.userId, 'reaction', {
noteId: note.id,
reaction: reaction,
}, user.id);
}
}
//#region 配信
if (isLocalUser(user) && !note.localOnly) {
const content = this.apRendererService.addContext(await this.apRendererService.renderLike(record, note));
const dm = this.apDeliverManagerService.createDeliverManager(user, content);
if (note.userHost !== null) {
const reactee = await this.usersRepository.findOneBy({ id: note.userId });
dm.addDirectRecipe(reactee as MiRemoteUser);
}
if (['public', 'home', 'followers'].includes(note.visibility)) {
dm.addFollowersRecipe();
} else if (note.visibility === 'specified') {
const visibleUsers = await Promise.all(note.visibleUserIds.map(id => this.usersRepository.findOneBy({ id })));
for (const u of visibleUsers.filter(u => u && isRemoteUser(u))) {
dm.addDirectRecipe(u as MiRemoteUser);
}
}
trackPromise(dm.execute());
}
//#endregion
}
@bindThis
public async delete(user: { id: MiUser['id']; host: MiUser['host']; isBot: MiUser['isBot']; }, note: MiNote, exist?: MiNoteReaction | null) {
// if already unreacted
exist ??= await this.noteReactionsRepository.findOneBy({
noteId: note.id,
userId: user.id,
});
if (exist == null) {
throw new IdentifiableError('60527ec9-b4cb-4a88-a6bd-32d3ad26817d', 'reaction does not exist');
}
// Delete reaction
const result = await this.noteReactionsRepository.delete(exist.id);
if (result.affected !== 1) {
throw new IdentifiableError('60527ec9-b4cb-4a88-a6bd-32d3ad26817d', 'reaction does not exist');
}
// Decrement reactions count
if (this.meta.enableReactionsBuffering) {
await this.reactionsBufferingService.delete(note.id, user.id, exist.reaction);
} else {
const sql = `jsonb_set("reactions", '{${exist.reaction}}', (COALESCE("reactions"->>'${exist.reaction}', '0')::int - 1)::text::jsonb)`;
await this.notesRepository.createQueryBuilder().update()
.set({
reactions: () => sql,
reactionAndUserPairCache: () => `array_remove("reactionAndUserPairCache", '${user.id}/${exist.reaction}')`,
})
.where('id = :id', { id: note.id })
.execute();
}
this.usersRepository.update({ id: user.id }, { updatedAt: this.timeService.date });
this.globalEventService.publishNoteStream(note.id, 'unreacted', {
reaction: this.decodeReaction(exist.reaction).reaction,
userId: user.id,
});
//#region 配信
if (isLocalUser(user) && !note.localOnly) {
const content = this.apRendererService.addContext(this.apRendererService.renderUndo(await this.apRendererService.renderLike(exist, note), user));
const dm = this.apDeliverManagerService.createDeliverManager(user, content);
if (note.userHost !== null) {
const reactee = await this.usersRepository.findOneBy({ id: note.userId });
dm.addDirectRecipe(reactee as MiRemoteUser);
}
dm.addFollowersRecipe();
trackPromise(dm.execute());
}
//#endregion
}
/**
* @deprecated Use the exported function instead
*/
readonly convertLegacyReaction = convertLegacyReaction;
/**
* @deprecated Use the exported function instead
*/
readonly convertLegacyReactions = convertLegacyReactions;
/**
* @deprecated Use the exported function instead
*/
readonly normalize = normalize;
/**
* @deprecated Use the exported function instead
*/
readonly decodeReaction = decodeReaction;
}
/**
* - 文字列タイプのレガシーな形式のリアクションを現在の形式に変換する
* - ローカルのリアクションのホストを `@.` にする(`decodeReaction()`の効果)
*/
export function convertLegacyReaction(reaction: string): string {
reaction = decodeReaction(reaction).reaction;
if (Object.keys(legacies).includes(reaction)) return legacies[reaction];
return reaction;
}
// TODO: 廃止
/**
* - 文字列タイプのレガシーな形式のリアクションを現在の形式に変換する
* - ローカルのリアクションのホストを `@.` にする(`decodeReaction()`の効果)
* - データベース上には存在する「0個のリアクションがついている」という情報を削除する
*/
export function convertLegacyReactions(reactions: MiNote['reactions']): MiNote['reactions'] {
return Object.entries(reactions)
.filter(([, count]) => {
// `ReactionService.prototype.delete`ではリアクション削除時に、
// `MiNote['reactions']`のエントリの値をデクリメントしているが、
// デクリメントしているだけなのでエントリ自体は0を値として持つ形で残り続ける。
// そのため、この処理がなければ、「0個のリアクションがついている」ということになってしまう。
return count > 0;
})
.map(([reaction, count]) => {
const key = convertLegacyReaction(reaction);
return [key, count] as const;
})
.reduce<MiNote['reactions']>((acc, [key, count]) => {
// unchecked indexed access
const prevCount = acc[key] as number | undefined;
acc[key] = (prevCount ?? 0) + count;
return acc;
}, {});
}
export function normalize(reaction: string | null): string {
if (reaction == null) return FALLBACK;
// 文字列タイプのリアクションを絵文字に変換
if (Object.keys(legacies).includes(reaction)) return legacies[reaction];
// Unicode絵文字
const match = emojiRegex.exec(reaction);
if (match) {
// 合字を含む1つの絵文字
const unicode = match[0];
// 異体字セレクタ除去
return unicode.match('\u200d') ? unicode : unicode.replace(/\ufe0f/g, '');
}
return FALLBACK;
}
export function decodeReaction(str: string): DecodedReaction {
const custom = str.match(decodeCustomEmojiRegexp);
if (custom) {
const name = custom[1];
const host = custom[2] ?? null;
return {
reaction: `:${name}@${host ?? '.'}:`, // ローカル分は@以降を省略するのではなく.にする
name,
host,
};
}
return {
reaction: str,
name: undefined,
host: undefined,
};
}