paricafe/packages/backend/src/core/CustomEmojiService.ts
2023-04-06 11:14:43 +09:00

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import { Inject, Injectable } from '@nestjs/common';
import { DataSource, In, IsNull } from 'typeorm';
import Redis from 'ioredis';
import { DI } from '@/di-symbols.js';
import { IdService } from '@/core/IdService.js';
import { EmojiEntityService } from '@/core/entities/EmojiEntityService.js';
import { GlobalEventService } from '@/core/GlobalEventService.js';
import type { DriveFile } from '@/models/entities/DriveFile.js';
import type { Emoji } from '@/models/entities/Emoji.js';
import type { EmojisRepository } from '@/models/index.js';
import { bindThis } from '@/decorators.js';
import { MemoryKVCache, RedisSingleCache } from '@/misc/cache.js';
import { UtilityService } from '@/core/UtilityService.js';
import type { Config } from '@/config.js';
import { query } from '@/misc/prelude/url.js';
@Injectable()
export class CustomEmojiService {
private cache: MemoryKVCache<Emoji | null>;
public localEmojisCache: RedisSingleCache<Map<string, Emoji>>;
constructor(
@Inject(DI.redis)
private redisClient: Redis.Redis,
@Inject(DI.config)
private config: Config,
@Inject(DI.db)
private db: DataSource,
@Inject(DI.emojisRepository)
private emojisRepository: EmojisRepository,
private utilityService: UtilityService,
private idService: IdService,
private emojiEntityService: EmojiEntityService,
private globalEventService: GlobalEventService,
) {
this.cache = new MemoryKVCache<Emoji | null>(1000 * 60 * 60 * 12);
this.localEmojisCache = new RedisSingleCache<Map<string, Emoji>>(this.redisClient, 'localEmojis', {
lifetime: 1000 * 60 * 30, // 30m
memoryCacheLifetime: 1000 * 60 * 3, // 3m
fetcher: () => this.emojisRepository.find({ where: { host: IsNull() } }).then(emojis => new Map(emojis.map(emoji => [emoji.name, emoji]))),
toRedisConverter: (value) => JSON.stringify(value.values()),
fromRedisConverter: (value) => new Map(JSON.parse(value).map((x: Emoji) => [x.name, x])), // TODO: Date型の変換
});
}
@bindThis
public async add(data: {
driveFile: DriveFile;
name: string;
category: string | null;
aliases: string[];
host: string | null;
license: string | null;
}): Promise<Emoji> {
const emoji = await this.emojisRepository.insert({
id: this.idService.genId(),
updatedAt: new Date(),
name: data.name,
category: data.category,
host: data.host,
aliases: data.aliases,
originalUrl: data.driveFile.url,
publicUrl: data.driveFile.webpublicUrl ?? data.driveFile.url,
type: data.driveFile.webpublicType ?? data.driveFile.type,
license: data.license,
}).then(x => this.emojisRepository.findOneByOrFail(x.identifiers[0]));
if (data.host == null) {
this.localEmojisCache.refresh();
this.globalEventService.publishBroadcastStream('emojiAdded', {
emoji: await this.emojiEntityService.packDetailed(emoji.id),
});
}
return emoji;
}
@bindThis
public async update(id: Emoji['id'], data: {
name?: string;
category?: string | null;
aliases?: string[];
license?: string | null;
}): Promise<void> {
const emoji = await this.emojisRepository.findOneByOrFail({ id: id });
const sameNameEmoji = await this.emojisRepository.findOneBy({ name: data.name, host: IsNull() });
if (sameNameEmoji != null && sameNameEmoji.id !== id) throw new Error('name already exists');
await this.emojisRepository.update(emoji.id, {
updatedAt: new Date(),
name: data.name,
category: data.category,
aliases: data.aliases,
license: data.license,
});
this.localEmojisCache.refresh();
const updated = await this.emojiEntityService.packDetailed(emoji.id);
if (emoji.name === data.name) {
this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: [updated],
});
} else {
this.globalEventService.publishBroadcastStream('emojiDeleted', {
emojis: [await this.emojiEntityService.packDetailed(emoji)],
});
this.globalEventService.publishBroadcastStream('emojiAdded', {
emoji: updated,
});
}
}
@bindThis
public async addAliasesBulk(ids: Emoji['id'][], aliases: string[]) {
const emojis = await this.emojisRepository.findBy({
id: In(ids),
});
for (const emoji of emojis) {
await this.emojisRepository.update(emoji.id, {
updatedAt: new Date(),
aliases: [...new Set(emoji.aliases.concat(aliases))],
});
}
this.localEmojisCache.refresh();
this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
});
}
@bindThis
public async setAliasesBulk(ids: Emoji['id'][], aliases: string[]) {
await this.emojisRepository.update({
id: In(ids),
}, {
updatedAt: new Date(),
aliases: aliases,
});
this.localEmojisCache.refresh();
this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
});
}
@bindThis
public async removeAliasesBulk(ids: Emoji['id'][], aliases: string[]) {
const emojis = await this.emojisRepository.findBy({
id: In(ids),
});
for (const emoji of emojis) {
await this.emojisRepository.update(emoji.id, {
updatedAt: new Date(),
aliases: emoji.aliases.filter(x => !aliases.includes(x)),
});
}
this.localEmojisCache.refresh();
this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
});
}
@bindThis
public async setCategoryBulk(ids: Emoji['id'][], category: string | null) {
await this.emojisRepository.update({
id: In(ids),
}, {
updatedAt: new Date(),
category: category,
});
this.localEmojisCache.refresh();
this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
});
}
@bindThis
public async delete(id: Emoji['id']) {
const emoji = await this.emojisRepository.findOneByOrFail({ id: id });
await this.emojisRepository.delete(emoji.id);
this.localEmojisCache.refresh();
this.globalEventService.publishBroadcastStream('emojiDeleted', {
emojis: [await this.emojiEntityService.packDetailed(emoji)],
});
}
@bindThis
public async deleteBulk(ids: Emoji['id'][]) {
const emojis = await this.emojisRepository.findBy({
id: In(ids),
});
for (const emoji of emojis) {
await this.emojisRepository.delete(emoji.id);
}
this.localEmojisCache.refresh();
this.globalEventService.publishBroadcastStream('emojiDeleted', {
emojis: await this.emojiEntityService.packDetailedMany(emojis),
});
}
@bindThis
private normalizeHost(src: string | undefined, noteUserHost: string | null): string | null {
// クエリに使うホスト
let host = src === '.' ? null // .はローカルホスト (ここがマッチするのはリアクションのみ)
: src === undefined ? noteUserHost // ノートなどでホスト省略表記の場合はローカルホスト (ここがリアクションにマッチすることはない)
: this.utilityService.isSelfHost(src) ? null // 自ホスト指定
: (src || noteUserHost); // 指定されたホスト || ノートなどの所有者のホスト (こっちがリアクションにマッチすることはない)
host = this.utilityService.toPunyNullable(host);
return host;
}
@bindThis
public parseEmojiStr(emojiName: string, noteUserHost: string | null) {
const match = emojiName.match(/^(\w+)(?:@([\w.-]+))?$/);
if (!match) return { name: null, host: null };
const name = match[1];
// ホスト正規化
const host = this.utilityService.toPunyNullable(this.normalizeHost(match[2], noteUserHost));
return { name, host };
}
/**
* 添付用(リモート)カスタム絵文字URLを解決する
* @param emojiName ノートやユーザープロフィールに添付された、またはリアクションのカスタム絵文字名 (:は含めない, リアクションでローカルホストの場合は@.を付ける (これはdecodeReactionで可能))
* @param noteUserHost ノートやユーザープロフィールの所有者のホスト
* @returns URL, nullは未マッチを意味する
*/
@bindThis
public async populateEmoji(emojiName: string, noteUserHost: string | null): Promise<string | null> {
const { name, host } = this.parseEmojiStr(emojiName, noteUserHost);
if (name == null) return null;
if (host == null) return null;
const queryOrNull = async () => (await this.emojisRepository.findOneBy({
name,
host: host ?? IsNull(),
})) ?? null;
const emoji = await this.cache.fetch(`${name} ${host}`, queryOrNull);
if (emoji == null) return null;
const isLocal = emoji.host == null;
const emojiUrl = emoji.publicUrl || emoji.originalUrl; // || emoji.originalUrl してるのは後方互換性のためpublicUrlはstringなので??はだめ)
const url = isLocal
? emojiUrl
: this.config.proxyRemoteFiles
? `${this.config.mediaProxy}/emoji.webp?${query({ url: emojiUrl })}`
: emojiUrl;
return url;
}
/**
* 複数の添付用(リモート)カスタム絵文字URLを解決する (キャシュ付き, 存在しないものは結果から除外される)
*/
@bindThis
public async populateEmojis(emojiNames: string[], noteUserHost: string | null): Promise<Record<string, string>> {
const emojis = await Promise.all(emojiNames.map(x => this.populateEmoji(x, noteUserHost)));
const res = {} as any;
for (let i = 0; i < emojiNames.length; i++) {
if (emojis[i] != null) {
res[emojiNames[i]] = emojis[i];
}
}
return res;
}
/**
* 与えられた絵文字のリストをデータベースから取得し、キャッシュに追加します
*/
@bindThis
public async prefetchEmojis(emojis: { name: string; host: string | null; }[]): Promise<void> {
const notCachedEmojis = emojis.filter(emoji => this.cache.get(`${emoji.name} ${emoji.host}`) == null);
const emojisQuery: any[] = [];
const hosts = new Set(notCachedEmojis.map(e => e.host));
for (const host of hosts) {
if (host == null) continue;
emojisQuery.push({
name: In(notCachedEmojis.filter(e => e.host === host).map(e => e.name)),
host: host,
});
}
const _emojis = emojisQuery.length > 0 ? await this.emojisRepository.find({
where: emojisQuery,
select: ['name', 'host', 'originalUrl', 'publicUrl'],
}) : [];
for (const emoji of _emojis) {
this.cache.set(`${emoji.name} ${emoji.host}`, emoji);
}
}
}