Resolve #7149

src/server/api/endpoints/hashtags/show.ts

@@ -2,6 +2,7 @@ import $ from 'cafy';
 import define from '../../define';
 import { ApiError } from '../../error';
 import { Hashtags } from '../../../../models';
+import { normalizeForSearch } from '../../../../misc/normalize-for-search';
 
 export const meta = {
 	desc: {
@@ -38,7 +39,7 @@ export const meta = {
 };
 
 export default define(meta, async (ps, user) => {
-	const hashtag = await Hashtags.findOne({ name: ps.tag.toLowerCase() });
+	const hashtag = await Hashtags.findOne({ name: normalizeForSearch(ps.tag) });
 	if (hashtag == null) {
 		throw new ApiError(meta.errors.noSuchHashtag);
 	}

src/server/api/endpoints/hashtags/trend.ts

@@ -4,6 +4,7 @@ import { fetchMeta } from '../../../../misc/fetch-meta';
 import { Notes } from '../../../../models';
 import { Note } from '../../../../models/entities/note';
 import { safeForSql } from '../../../../misc/safe-for-sql';
+import { normalizeForSearch } from '../../../../misc/normalize-for-search';
 
 /*
 トレンドに載るためには「『直近a分間のユニーク投稿数が今からa分前～今からb分前の間のユニーク投稿数のn倍以上』のハッシュタグの上位5位以内に入る」ことが必要
@@ -54,7 +55,7 @@ export const meta = {
 
 export default define(meta, async () => {
 	const instance = await fetchMeta(true);
-	const hiddenTags = instance.hiddenTags.map(t => t.toLowerCase());
+	const hiddenTags = instance.hiddenTags.map(t => normalizeForSearch(t));
 
 	const now = new Date(); // 5分単位で丸めた現在日時
 	now.setMinutes(Math.round(now.getMinutes() / 5) * 5, 0, 0);

src/server/api/endpoints/hashtags/users.ts

@@ -1,6 +1,7 @@
 import $ from 'cafy';
 import define from '../../define';
 import { Users } from '../../../../models';
+import { normalizeForSearch } from '../../../../misc/normalize-for-search';
 
 export const meta = {
 	requireCredential: false as const,
@@ -59,7 +60,7 @@ export const meta = {
 
 export default define(meta, async (ps, me) => {
 	const query = Users.createQueryBuilder('user')
-		.where(':tag = ANY(user.tags)', { tag: ps.tag.toLowerCase() });
+		.where(':tag = ANY(user.tags)', { tag: normalizeForSearch(ps.tag) });
 
 	const recent = new Date(Date.now() - (1000 * 60 * 60 * 24 * 5));
 

src/server/api/endpoints/i/update.ts

@@ -15,6 +15,7 @@ import { User } from '../../../../models/entities/user';
 import { UserProfile } from '../../../../models/entities/user-profile';
 import { ensure } from '../../../../prelude/ensure';
 import { notificationTypes } from '../../../../types';
+import { normalizeForSearch } from '../../../../misc/normalize-for-search';
 
 export const meta = {
 	desc: {
@@ -286,7 +287,7 @@ export default define(meta, async (ps, user, token) => {
 	if (newDescription != null) {
 		const tokens = parse(newDescription);
 		emojis = emojis.concat(extractEmojis(tokens!));
-		tags = extractHashtags(tokens!).map(tag => tag.toLowerCase()).splice(0, 32);
+		tags = extractHashtags(tokens!).map(tag => normalizeForSearch(tag)).splice(0, 32);
 	}
 
 	updates.emojis = emojis;

src/server/api/endpoints/notes/search-by-tag.ts

@@ -7,6 +7,7 @@ import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
 import { generateVisibilityQuery } from '../../common/generate-visibility-query';
 import { Brackets } from 'typeorm';
 import { safeForSql } from '../../../../misc/safe-for-sql';
+import { normalizeForSearch } from '../../../../misc/normalize-for-search';
 
 export const meta = {
 	desc: {
@@ -101,7 +102,7 @@ export default define(meta, async (ps, me) => {
 
 	if (ps.tag) {
 		if (!safeForSql(ps.tag)) return;
-		query.andWhere(`'{"${ps.tag.toLowerCase()}"}' <@ note.tags`);
+		query.andWhere(`'{"${normalizeForSearch(ps.tag)}"}' <@ note.tags`);
 	} else {
 		let i = 0;
 		query.andWhere(new Brackets(qb => {
@@ -109,7 +110,7 @@ export default define(meta, async (ps, me) => {
 				qb.orWhere(new Brackets(qb => {
 					for (const tag of tags) {
 						if (!safeForSql(tag)) return;
-						qb.andWhere(`'{"${tag.toLowerCase()}"}' <@ note.tags`);
+						qb.andWhere(`'{"${normalizeForSearch(ps.tag)}"}' <@ note.tags`);
 						i++;
 					}
 				}));