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2 changes: 2 additions & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
- Feat: コントロールパネルから二要素認証を解除できるように
- Feat: 条件に一致したURLプレビューのサムネイルを隠すことができるように
(Based on https://github.com/MisskeyIO/misskey/pull/214)
- Fix: クライアントを閉じている間に追加・変更されたカスタム絵文字が、クライアントのキャッシュを削除するか期限切れになるまで反映されない問題を修正
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kakkokari-gtyih marked this conversation as resolved.

### Client
- 2025.4.0 以前の設定情報の移行処理が削除されました
Expand All @@ -38,6 +39,7 @@
- Fix: 非ログイン時トップページをスクロール操作できないことがある問題を修正
- Fix: ローカルユーザーへのホスト付きメンションが本文に含まれる指名ノートの作成時、投稿フォームにて、当該ユーザーが宛先に含まれていても正しく認識されない問題を修正
- Fix: ドライブの「このファイルからノートを作成」やギャラリーの「ノートで共有」、誕生日ウィジェットからのノート作成において、通常投稿の下書きが表示される問題を修正
- Fix: セッション中にカスタム絵文字が追加・変更されても、既に描画済みの絵文字に反映されない問題を修正

### Server
- Feat: OpenTelemetryサポート
Expand Down
50 changes: 39 additions & 11 deletions packages/backend/src/core/CustomEmojiService.ts
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ import { ModerationLogService } from '@/core/ModerationLogService.js';
import { UtilityService } from '@/core/UtilityService.js';
import { bindThis } from '@/decorators.js';
import { DI } from '@/di-symbols.js';
import { MemoryKVCache, RedisSingleCache } from '@/misc/cache.js';
import { MemoryKVCache, MemorySingleCache, RedisSingleCache } from '@/misc/cache.js';
import { sqlLikeEscape } from '@/misc/sql-like-escape.js';
import type { EmojisRepository, MiRole, MiUser } from '@/models/_.js';
import type { MiEmoji } from '@/models/Emoji.js';
Expand Down Expand Up @@ -57,9 +57,15 @@ export const fetchEmojisSortKeys = [
] as const;
export type FetchEmojisSortKeys = typeof fetchEmojisSortKeys[number];

export type LocalEmojisStats = {
count: number;
lastUpdatedAt: Date | null;
};

@Injectable()
export class CustomEmojiService implements OnApplicationShutdown {
private emojisCache: MemoryKVCache<MiEmoji | null>;
private localEmojisStatsCache: MemorySingleCache<LocalEmojisStats>;
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public localEmojisCache: RedisSingleCache<Map<string, MiEmoji>>;

constructor(
Expand All @@ -74,7 +80,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
private globalEventService: GlobalEventService,
) {
this.emojisCache = new MemoryKVCache<MiEmoji | null>(1000 * 60 * 60 * 12); // 12h

this.localEmojisStatsCache = new MemorySingleCache<LocalEmojisStats>(1000 * 60 * 3); // 3m
this.localEmojisCache = new RedisSingleCache<Map<string, MiEmoji>>(this.redisClient, 'localEmojis', {
lifetime: 1000 * 60 * 30, // 30m
memoryCacheLifetime: 1000 * 60 * 3, // 3m
Expand All @@ -89,6 +95,12 @@ export class CustomEmojiService implements OnApplicationShutdown {
});
}

@bindThis
private refreshLocalEmojiCaches(): void {
this.localEmojisCache.refresh();
this.localEmojisStatsCache.delete();
}

@bindThis
public async add(data: {
originalUrl: string;
Expand Down Expand Up @@ -120,7 +132,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
});

if (data.host == null) {
this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiAdded', {
emoji: await this.emojiEntityService.packDetailed(emoji.id),
Expand Down Expand Up @@ -182,7 +194,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
roleIdsThatCanBeUsedThisEmojiAsReaction: data.roleIdsThatCanBeUsedThisEmojiAsReaction ?? undefined,
});

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

const packed = await this.emojiEntityService.packDetailed(emoji.id);

Expand Down Expand Up @@ -224,7 +236,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
});
}

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
Expand All @@ -240,7 +252,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
aliases: aliases,
});

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
Expand All @@ -260,7 +272,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
});
}

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
Expand All @@ -276,7 +288,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
category: category,
});

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
Expand All @@ -292,7 +304,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
license: license,
});

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiUpdated', {
emojis: await this.emojiEntityService.packDetailedMany(ids),
Expand All @@ -305,7 +317,7 @@ export class CustomEmojiService implements OnApplicationShutdown {

await this.emojisRepository.delete(emoji.id);

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiDeleted', {
emojis: [await this.emojiEntityService.packDetailed(emoji)],
Expand Down Expand Up @@ -336,7 +348,7 @@ export class CustomEmojiService implements OnApplicationShutdown {
}
}

this.localEmojisCache.refresh();
this.refreshLocalEmojiCaches();

this.globalEventService.publishBroadcastStream('emojiDeleted', {
emojis: await this.emojiEntityService.packDetailedMany(emojis),
Expand Down Expand Up @@ -601,6 +613,22 @@ export class CustomEmojiService implements OnApplicationShutdown {
};
}

@bindThis
public async getLocalEmojisStats(): Promise<LocalEmojisStats> {
return this.localEmojisStatsCache.fetch(async () => {
const raw = await this.emojisRepository.createQueryBuilder('emoji')
.select('COUNT(*)', 'count')
.addSelect('MAX(emoji.updatedAt)', 'lastUpdatedAt')
.where('emoji.host IS NULL')
.getRawOne<{ count: string; lastUpdatedAt: Date | null }>();

return {
count: raw ? Number(raw.count) : 0,
lastUpdatedAt: raw?.lastUpdatedAt ?? null,
};
});
}

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現状、件数と最終更新日時ベースでは絵文字削除が追えないかと思います(物理削除なので)。

「有効な絵文字一覧」としてのバージョンをmetaあたりに持っておくのが良いかと思います。
addやdelete/deleteBulkなどの1操作につき1回更新されるイメージの

@kakkokari-gtyih kakkokari-gtyih Jul 24, 2026

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  • カスタム絵文字削除した場合は件数が変わる→最終更新日時は変わらないけど件数が変わるのでキャッシュ更新
  • 削除した分と同じだけカスタム絵文字を追加する→件数は変わる前と同じになるけど最終更新日時が変わるのでキャッシュ更新

で問題なく更新される説がある

@samunohito samunohito Jul 24, 2026

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ありがとうございます。削除の追跡が漏れる懸念はなさそうです。

--

ただ、それでもやはり気になるのが、絵文字一覧の変更有無を表現するためだけに COUNT / MAX の集計を都度行っている点です。

  • キャッシュの有効期間が3分と短く、絵文字の追加・削除・更新時にも無効化される
  • 複数のHTTPプロセスを使っている環境ではプロセスごとに集計が走る
  • キュープロセスなどの別プロセスで行われた変更はHTTPプロセス側のキャッシュを更新できず、最大3分古い値を返す可能性がある
  • キャッシュミスが重なった場合、同一の集計クエリが並行して実行され得る

という点から、負荷と整合性の両面でウィークポイントになりやすいと考えています。

そのため再度、metaやRedisなどの共有領域に、集計不要な絵文字一覧のリビジョンを持たせ、論理的な変更操作ごとに更新する方式を提案させて頂きます


@bindThis
public dispose(): void {
this.emojisCache.dispose();
Expand Down
1 change: 1 addition & 0 deletions packages/backend/src/server/api/endpoint-list.ts
Original file line number Diff line number Diff line change
Expand Up @@ -196,6 +196,7 @@ export * as 'drive/stream' from './endpoints/drive/stream.js';
export * as 'email-address/available' from './endpoints/email-address/available.js';
export * as 'emoji' from './endpoints/emoji.js';
export * as 'emojis' from './endpoints/emojis.js';
export * as 'emojis/stats' from './endpoints/emojis/stats.js';
export * as 'endpoint' from './endpoints/endpoint.js';
export * as 'endpoints' from './endpoints/endpoints.js';
export * as 'export-custom-emojis' from './endpoints/export-custom-emojis.js';
Expand Down
53 changes: 53 additions & 0 deletions packages/backend/src/server/api/endpoints/emojis/stats.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,53 @@
/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/

import { Injectable } from '@nestjs/common';
import { Endpoint } from '@/server/api/endpoint-base.js';
import { CustomEmojiService } from '@/core/CustomEmojiService.js';

export const meta = {
tags: ['meta'],

requireCredential: false,

res: {
type: 'object',
optional: false, nullable: false,
properties: {
count: {
type: 'number',
optional: false, nullable: false,
},
lastUpdatedAt: {
type: 'string',
optional: false, nullable: true,
format: 'date-time',
},
},
},
} as const;

export const paramDef = {
type: 'object',
properties: {
},
required: [],
} as const;

@Injectable()
export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
constructor(
private customEmojiService: CustomEmojiService,
) {
super(meta, paramDef, async (ps, me) => {
const stats = await this.customEmojiService.getLocalEmojisStats();

return {
count: stats.count,
lastUpdatedAt: stats.lastUpdatedAt ? stats.lastUpdatedAt.toISOString() : null,
};
});
}
}
12 changes: 8 additions & 4 deletions packages/frontend/src/boot/common.ts
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ import { getAccountFromId } from '@/utility/get-account-from-id.js';
import { deckStore } from '@/ui/deck/deck-store.js';
import { analytics, initAnalytics } from '@/analytics.js';
import { miLocalStorage } from '@/local-storage.js';
import { fetchCustomEmojis } from '@/custom-emojis.js';
import { fetchCustomEmojis, isInitialLoading as isCustomEmojiCacheNotFound } from '@/custom-emojis.js';
import { prefer } from '@/preferences.js';
import { $i } from '@/i.js';
import { launchPlugins } from '@/plugin.js';
Expand Down Expand Up @@ -242,9 +242,13 @@ export async function common(createVue: () => Promise<App<Element>>) {
}
//#endregion

try {
await fetchCustomEmojis();
} catch (err) { /* empty */ }
if (isCustomEmojiCacheNotFound) {
// まだキャッシュしたことがない場合は、取得を待つ
await fetchCustomEmojis(true).catch(() => { /* empty */ });
} else {
// 既にキャッシュがあるなら、バックグラウンドで更新を試みる(描画の方はリアクティビティにより更新される)
fetchCustomEmojis().catch(() => { /* empty */ });
}

// analytics
fetchInstanceMetaPromise.then(async () => {
Expand Down
8 changes: 4 additions & 4 deletions packages/frontend/src/components/MkEmojiPicker.vue
Original file line number Diff line number Diff line change
Expand Up @@ -257,8 +257,8 @@ watch(q, () => {
}
}
} else {
if (customEmojisMap.has(newQ)) {
matches.add(customEmojisMap.get(newQ)!);
if (customEmojisMap.value.has(newQ)) {
matches.add(customEmojisMap.value.get(newQ)!);
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}
if (matches.size >= max) return matches;

Expand Down Expand Up @@ -405,7 +405,7 @@ function getDef(emoji: string): string | Misskey.entities.EmojiSimple | UnicodeE
// カスタム絵文字が存在する場合はその情報を持つオブジェクトを返し、
// サーバの管理画面から削除された等で情報が見つからない場合は名前の文字列をそのまま返しておく(undefinedを返すとエラーになるため)
const name = emoji.replaceAll(':', '');
return customEmojisMap.get(name) ?? emoji;
return customEmojisMap.value.get(name) ?? emoji;
} else {
return getUnicodeEmoji(emoji);
}
Expand Down Expand Up @@ -476,7 +476,7 @@ function done(query?: string): boolean | void {
if (query == null || typeof query !== 'string') return;

const q2 = query.replace(/:/g, '');
const exactMatchCustom = customEmojisMap.get(q2);
const exactMatchCustom = customEmojisMap.value.get(q2);
if (exactMatchCustom) {
chosen(exactMatchCustom);
return true;
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ const buttonEl = useTemplateRef('buttonEl');
const emojiName = computed(() => props.reaction.replace(/:/g, '').replace(/@\./, ''));

const canToggle = computed(() => {
const emoji = customEmojisMap.get(emojiName.value) ?? getUnicodeEmojiOrNull(props.reaction);
const emoji = customEmojisMap.value.get(emojiName.value) ?? getUnicodeEmojiOrNull(props.reaction);

// TODO
//return !props.reaction.match(/@\w/) && $i && emoji && checkReactionPermissions($i, props.note, emoji);
Expand Down Expand Up @@ -106,7 +106,7 @@ async function toggleReaction() {
noteId: props.noteId,
reaction: props.reaction,
}).then(() => {
const emoji = customEmojisMap.get(emojiName.value);
const emoji = customEmojisMap.value.get(emojiName.value);
if (emoji == null && getUnicodeEmojiOrNull(props.reaction) == null) {
return;
}
Expand Down Expand Up @@ -140,7 +140,7 @@ async function toggleReaction() {
noteId: props.noteId,
reaction: props.reaction,
}).then(() => {
const emoji = customEmojisMap.get(emojiName.value);
const emoji = customEmojisMap.value.get(emojiName.value);
if (emoji == null && getUnicodeEmojiOrNull(props.reaction) == null) {
return;
}
Expand Down
2 changes: 1 addition & 1 deletion packages/frontend/src/components/MkReactionsViewer.vue
Original file line number Diff line number Diff line change
Expand Up @@ -76,7 +76,7 @@ function onMockToggleReaction(emoji: string, count: number) {
function canReact(reaction: string) {
if (!$i) return false;
// TODO: CheckPermissions
return !reaction.match(/@\w/) && (customEmojisMap.has(reaction) || isSupportedEmoji(reaction));
return !reaction.match(/@\w/) && (customEmojisMap.value.has(reaction) || isSupportedEmoji(reaction));
}

watch([() => props.reactions, () => props.maxNumber], ([newSource, maxNumber]) => {
Expand Down
2 changes: 1 addition & 1 deletion packages/frontend/src/components/global/MkCustomEmoji.vue
Original file line number Diff line number Diff line change
Expand Up @@ -78,7 +78,7 @@ const rawUrl = computed(() => {
return props.url;
}
if (isLocal.value) {
return customEmojisMap.get(customEmojiName.value)?.url ?? null;
return customEmojisMap.value.get(customEmojiName.value)?.url ?? null;
}
return props.host ? `/emoji/${customEmojiName.value}@${props.host}.webp` : `/emoji/${customEmojiName.value}.webp`;
});
Expand Down
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