2022-09-17 21:27:08 +03:00
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import { Inject, Injectable } from '@nestjs/common';
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import { DataSource, In, IsNull } from 'typeorm';
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import { GlobalEventService } from '@/core/GlobalEventService.js';
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import { DI } from '@/di-symbols.js';
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2022-09-20 23:33:11 +03:00
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import type { Config } from '@/config.js';
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2022-09-17 21:27:08 +03:00
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import { IdService } from '@/core/IdService.js';
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import type { DriveFile } from '@/models/entities/DriveFile.js';
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import type { Emoji } from '@/models/entities/Emoji.js';
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import { Cache } from '@/misc/cache.js';
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import { query } from '@/misc/prelude/url.js';
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import type { Note } from '@/models/entities/Note.js';
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2022-09-20 23:33:11 +03:00
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import type { EmojisRepository } from '@/models/index.js';
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2022-12-04 03:16:03 +02:00
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import { UtilityService } from '@/core/UtilityService.js';
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import { ReactionService } from '@/core/ReactionService.js';
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2022-12-04 10:05:32 +02:00
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import { bindThis } from '@/decorators.js';
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2022-09-17 21:27:08 +03:00
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/**
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* 添付用絵文字情報
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*/
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type PopulatedEmoji = {
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name: string;
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url: string;
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};
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@Injectable()
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export class CustomEmojiService {
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private cache: Cache<Emoji | null>;
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constructor(
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@Inject(DI.config)
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private config: Config,
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@Inject(DI.db)
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private db: DataSource,
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@Inject(DI.emojisRepository)
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private emojisRepository: EmojisRepository,
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private idService: IdService,
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private globalEventServie: GlobalEventService,
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private utilityService: UtilityService,
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private reactionService: ReactionService,
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) {
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this.cache = new Cache<Emoji | null>(1000 * 60 * 60 * 12);
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}
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@bindThis
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public async add(data: {
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driveFile: DriveFile;
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name: string;
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category: string | null;
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aliases: string[];
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host: string | null;
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}): Promise<Emoji> {
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const emoji = await this.emojisRepository.insert({
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id: this.idService.genId(),
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updatedAt: new Date(),
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name: data.name,
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category: data.category,
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host: data.host,
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aliases: data.aliases,
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originalUrl: data.driveFile.url,
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publicUrl: data.driveFile.webpublicUrl ?? data.driveFile.url,
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type: data.driveFile.webpublicType ?? data.driveFile.type,
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}).then(x => this.emojisRepository.findOneByOrFail(x.identifiers[0]));
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await this.db.queryResultCache!.remove(['meta_emojis']);
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return emoji;
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}
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@bindThis
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private normalizeHost(src: string | undefined, noteUserHost: string | null): string | null {
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// クエリに使うホスト
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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)
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: 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)
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: this.utilityService.isSelfHost(src) ? null // 自ホスト指定
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: (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)
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host = this.utilityService.toPunyNullable(host);
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return host;
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}
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@bindThis
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private parseEmojiStr(emojiName: string, noteUserHost: string | null) {
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const match = emojiName.match(/^(\w+)(?:@([\w.-]+))?$/);
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if (!match) return { name: null, host: null };
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const name = match[1];
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// ホスト正規化
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const host = this.utilityService.toPunyNullable(this.normalizeHost(match[2], noteUserHost));
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return { name, host };
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}
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/**
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* 添付用絵文字情報を解決する
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* @param emojiName ノートやユーザープロフィールに添付された、またはリアクションのカスタム絵文字名 (:は含めない, リアクションでローカルホストの場合は@.を付ける (これはdecodeReactionで可能))
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* @param noteUserHost ノートやユーザープロフィールの所有者のホスト
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* @returns 絵文字情報, nullは未マッチを意味する
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*/
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@bindThis
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public async populateEmoji(emojiName: string, noteUserHost: string | null): Promise<PopulatedEmoji | null> {
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const { name, host } = this.parseEmojiStr(emojiName, noteUserHost);
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if (name == null) return null;
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const queryOrNull = async () => (await this.emojisRepository.findOneBy({
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name,
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host: host ?? IsNull(),
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})) ?? null;
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const emoji = await this.cache.fetch(`${name} ${host}`, queryOrNull);
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if (emoji == null) return null;
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const isLocal = emoji.host == null;
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const emojiUrl = emoji.publicUrl || emoji.originalUrl; // || emoji.originalUrl してるのは後方互換性のため
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const url = isLocal ? emojiUrl : `${this.config.url}/proxy/${encodeURIComponent((new URL(emojiUrl)).pathname)}?${query({ url: emojiUrl })}`;
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return {
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name: emojiName,
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url,
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};
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}
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/**
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* 複数の添付用絵文字情報を解決する (キャシュ付き, 存在しないものは結果から除外される)
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*/
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@bindThis
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public async populateEmojis(emojiNames: string[], noteUserHost: string | null): Promise<PopulatedEmoji[]> {
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const emojis = await Promise.all(emojiNames.map(x => this.populateEmoji(x, noteUserHost)));
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return emojis.filter((x): x is PopulatedEmoji => x != null);
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}
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@bindThis
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public aggregateNoteEmojis(notes: Note[]) {
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let emojis: { name: string | null; host: string | null; }[] = [];
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for (const note of notes) {
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emojis = emojis.concat(note.emojis
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.map(e => this.parseEmojiStr(e, note.userHost)));
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if (note.renote) {
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emojis = emojis.concat(note.renote.emojis
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.map(e => this.parseEmojiStr(e, note.renote!.userHost)));
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if (note.renote.user) {
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emojis = emojis.concat(note.renote.user.emojis
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.map(e => this.parseEmojiStr(e, note.renote!.userHost)));
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}
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}
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const customReactions = Object.keys(note.reactions).map(x => this.reactionService.decodeReaction(x)).filter(x => x.name != null) as typeof emojis;
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emojis = emojis.concat(customReactions);
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if (note.user) {
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emojis = emojis.concat(note.user.emojis
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.map(e => this.parseEmojiStr(e, note.userHost)));
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}
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}
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return emojis.filter(x => x.name != null) as { name: string; host: string | null; }[];
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}
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/**
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* 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
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*/
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@bindThis
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public async prefetchEmojis(emojis: { name: string; host: string | null; }[]): Promise<void> {
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const notCachedEmojis = emojis.filter(emoji => this.cache.get(`${emoji.name} ${emoji.host}`) == null);
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const emojisQuery: any[] = [];
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const hosts = new Set(notCachedEmojis.map(e => e.host));
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for (const host of hosts) {
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emojisQuery.push({
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name: In(notCachedEmojis.filter(e => e.host === host).map(e => e.name)),
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host: host ?? IsNull(),
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});
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}
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const _emojis = emojisQuery.length > 0 ? await this.emojisRepository.find({
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where: emojisQuery,
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select: ['name', 'host', 'originalUrl', 'publicUrl'],
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}) : [];
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for (const emoji of _emojis) {
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this.cache.set(`${emoji.name} ${emoji.host}`, emoji);
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}
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}
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}
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