カスタム絵文字をproxyに通すように (#7526)

src/client/scripts/get-static-image-url.ts

@@ -3,6 +3,11 @@ import * as url from '../../prelude/url';
 
 export function getStaticImageUrl(baseUrl: string): string {
 	const u = new URL(baseUrl);
+	if (u.href.startsWith(`${instanceUrl}/proxy/`)) {
+		// もう既にproxyっぽそうだったらsearchParams付けるだけ
+		u.searchParams.set('static', '1');
+		return u.href;
+	}
 	const dummy = `${u.host}${u.pathname}`;	// 拡張子がないとキャッシュしてくれないCDNがあるので
 	return `${instanceUrl}/proxy/${dummy}?${url.query({
 		url: u.href,

src/misc/populate-emojis.ts

@@ -5,6 +5,8 @@ import { Note } from '../models/entities/note';
 import { Cache } from './cache';
 import { isSelfHost, toPunyNullable } from './convert-host';
 import { decodeReaction } from './reaction-lib';
+import config from '@/config';
+import { query } from '@/prelude/url';
 
 const cache = new Cache<Emoji | null>(1000 * 60 * 60 * 12);
 
@@ -59,9 +61,12 @@ export async function populateEmoji(emojiName: string, noteUserHost: string | nu
 
 	if (emoji == null) return null;
 
+	const isLocal = emojiName.endsWith('@.');
+	const url = isLocal ? emoji.url : `${config.url}/proxy/image.png?${query({url: emoji.url})}`;
+
 	return {
 		name: emojiName,
-		url: emoji.url,
+		url,
 	};
 }