handle non-ASCII emoji names

* use the more inclusive regexp for validating emoji names
* always normalize emoji names, aliases, categories

the latter point is necessary to allow matching, for example, `ä`
against `a`+combining diaeresis

this will also need to bump the version of `sfm-js` once we merge
https://activitypub.software/TransFem-org/sfm-js/-/merge_requests/2

packages/backend/src/queue/processors/ExportCustomEmojisProcessorService.ts

@@ -85,7 +85,7 @@ export class ExportCustomEmojisProcessorService {
 		});
 
 		for (const emoji of customEmojis) {
-			if (!/^[a-zA-Z0-9_]+$/.test(emoji.name)) {
+			if (!/^[\p{Letter}\p{Number}\p{Mark}_+-]+$/u.test(emoji.name)) {
 				this.logger.error(`invalid emoji name: ${emoji.name}`);
 				continue;
 			}

packages/backend/src/queue/processors/ImportCustomEmojisProcessorService.ts

@@ -79,13 +79,14 @@ export class ImportCustomEmojisProcessorService {
 					continue;
 				}
 				const emojiInfo = record.emoji;
-				if (!/^[a-zA-Z0-9_]+$/.test(emojiInfo.name)) {
+				const nameNfc = emojiInfo.name.normalize('NFC');
-					this.logger.error(`invalid emojiname: ${emojiInfo.name}`);
+				if (!/^[\p{Letter}\p{Number}\p{Mark}_+-]+$/u.test(nameNfc)) {
+					this.logger.error(`invalid emojiname: ${nameNfc}`);
 					continue;
 				}
 				const emojiPath = outputPath + '/' + record.fileName;
 				await this.emojisRepository.delete({
-					name: emojiInfo.name,
+					name: nameNfc,
 				});
 				const driveFile = await this.driveService.addFile({
 					user: null,
@@ -94,10 +95,10 @@ export class ImportCustomEmojisProcessorService {
 					force: true,
 				});
 				await this.customEmojiService.add({
-					name: emojiInfo.name,
+					name: nameNfc,
-					category: emojiInfo.category,
+					category: emojiInfo.category?.normalize('NFC'),
 					host: null,
-					aliases: emojiInfo.aliases,
+					aliases: emojiInfo.aliases?.map((a: string) => a.normalize('NFC')),
 					driveFile,
 					license: emojiInfo.license,
 					isSensitive: emojiInfo.isSensitive,

packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts

@@ -34,7 +34,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private customEmojiService: CustomEmojiService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			await this.customEmojiService.addAliasesBulk(ps.ids, ps.aliases);
+			await this.customEmojiService.addAliasesBulk(ps.ids, ps.aliases.map(a => a.normalize('NFC')));
 		});
 	}
 }

packages/backend/src/server/api/endpoints/admin/emoji/add.ts

@@ -40,7 +40,7 @@ export const meta = {
 export const paramDef = {
 	type: 'object',
 	properties: {
-		name: { type: 'string', pattern: '^[a-zA-Z0-9_]+$' },
+		name: { type: 'string', pattern: '^[\\p{Letter}\\p{Number}\\p{Mark}_+-]+$' },
 		fileId: { type: 'string', format: 'misskey:id' },
 		category: {
 			type: 'string',
@@ -73,18 +73,19 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private emojiEntityService: EmojiEntityService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			const nameNfc = ps.name.normalize('NFC');
 			const driveFile = await this.driveFilesRepository.findOneBy({ id: ps.fileId });
 			if (driveFile == null) throw new ApiError(meta.errors.noSuchFile);
-			const isDuplicate = await this.customEmojiService.checkDuplicate(ps.name);
+			const isDuplicate = await this.customEmojiService.checkDuplicate(nameNfc);
 			if (isDuplicate) throw new ApiError(meta.errors.duplicateName);
 
 			if (driveFile.user !== null) await this.driveFilesRepository.update(driveFile.id, { user: null });
 
 			const emoji = await this.customEmojiService.add({
 				driveFile,
-				name: ps.name,
+				name: nameNfc,
-				category: ps.category ?? null,
+				category: ps.category?.normalize('NFC') ?? null,
-				aliases: ps.aliases ?? [],
+				aliases: ps.aliases?.map(a => a.normalize('NFC')) ?? [],
 				host: null,
 				license: ps.license ?? null,
 				isSensitive: ps.isSensitive ?? false,

packages/backend/src/server/api/endpoints/admin/emoji/copy.ts

@@ -82,15 +82,16 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError();
 			}
 
+			const nameNfc = emoji.name.normalize('NFC');
 			// Duplication Check
-			const isDuplicate = await this.customEmojiService.checkDuplicate(emoji.name);
+			const isDuplicate = await this.customEmojiService.checkDuplicate(nameNfc);
 			if (isDuplicate) throw new ApiError(meta.errors.duplicateName);
 
 			const addedEmoji = await this.customEmojiService.add({
 				driveFile,
-				name: emoji.name,
+				name: nameNfc,
-				category: emoji.category,
+				category: emoji.category?.normalize('NFC'),
-				aliases: emoji.aliases,
+				aliases: emoji.aliases?.map(a => a.normalize('NFC')),
 				host: null,
 				license: emoji.license,
 				isSensitive: emoji.isSensitive,

packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts

@@ -98,7 +98,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			if (ps.query) {
-				q.andWhere('emoji.name like :query', { query: '%' + sqlLikeEscape(ps.query) + '%' })
+				q.andWhere('emoji.name like :query', { query: '%' + sqlLikeEscape(ps.query.normalize('NFC')) + '%' })
 					.orderBy('length(emoji.name)', 'ASC');
 			}
 

packages/backend/src/server/api/endpoints/admin/emoji/list.ts

@@ -92,17 +92,18 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				//const emojis = await q.limit(ps.limit).getMany();
 
 				emojis = await q.orderBy('length(emoji.name)', 'ASC').getMany();
-				const queryarry = ps.query.match(/\:([a-z0-9_]*)\:/g);
+				const queryarry = ps.query.match(/:([\p{Letter}\p{Number}\p{Mark}_+-]*):/ug);
 
 				if (queryarry) {
 					emojis = emojis.filter(emoji =>
-						queryarry.includes(`:${emoji.name}:`),
+						queryarry.includes(`:${emoji.name.normalize('NFC')}:`),
 					);
 				} else {
+					const queryNfc = ps.query!.normalize('NFC');
 					emojis = emojis.filter(emoji =>
-						emoji.name.includes(ps.query!) ||
+						emoji.name.includes(queryNfc) ||
-						emoji.aliases.some(a => a.includes(ps.query!)) ||
+						emoji.aliases.some(a => a.includes(queryNfc)) ||
-						emoji.category?.includes(ps.query!));
+						emoji.category?.includes(queryNfc));
 				}
 				emojis.splice(ps.limit + 1);
 			} else {

packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts

@@ -34,7 +34,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private customEmojiService: CustomEmojiService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			await this.customEmojiService.removeAliasesBulk(ps.ids, ps.aliases);
+			await this.customEmojiService.removeAliasesBulk(ps.ids, ps.aliases.map(a => a.normalize('NFC')));
 		});
 	}
 }

packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts

@@ -34,7 +34,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private customEmojiService: CustomEmojiService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			await this.customEmojiService.setAliasesBulk(ps.ids, ps.aliases);
+			await this.customEmojiService.setAliasesBulk(ps.ids, ps.aliases.map(a => a.normalize('NFC')));
 		});
 	}
 }

packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts

@@ -36,7 +36,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private customEmojiService: CustomEmojiService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			await this.customEmojiService.setCategoryBulk(ps.ids, ps.category ?? null);
+			await this.customEmojiService.setCategoryBulk(ps.ids, ps.category?.normalize('NFC') ?? null);
 		});
 	}
 }

packages/backend/src/server/api/endpoints/admin/emoji/update.ts

@@ -40,7 +40,7 @@ export const paramDef = {
 	type: 'object',
 	properties: {
 		id: { type: 'string', format: 'misskey:id' },
-		name: { type: 'string', pattern: '^[a-zA-Z0-9_]+$' },
+		name: { type: 'string', pattern: '^[\\p{Letter}\\p{Number}\\p{Mark}_+-]+$' },
 		fileId: { type: 'string', format: 'misskey:id' },
 		category: {
 			type: 'string',
@@ -72,6 +72,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private customEmojiService: CustomEmojiService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			const nameNfc = ps.name?.normalize('NFC');
 			let driveFile;
 			if (ps.fileId) {
 				driveFile = await this.driveFilesRepository.findOneBy({ id: ps.fileId });
@@ -83,22 +84,22 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				emojiId = ps.id;
 				const emoji = await this.customEmojiService.getEmojiById(ps.id);
 				if (!emoji) throw new ApiError(meta.errors.noSuchEmoji);
-				if (ps.name && (ps.name !== emoji.name)) {
+				if (nameNfc && (nameNfc !== emoji.name)) {
-					const isDuplicate = await this.customEmojiService.checkDuplicate(ps.name);
+					const isDuplicate = await this.customEmojiService.checkDuplicate(nameNfc);
 					if (isDuplicate) throw new ApiError(meta.errors.sameNameEmojiExists);
 				}
 			} else {
-				if (!ps.name) throw new Error('Invalid Params unexpectedly passed. This is a BUG. Please report it to the development team.');
+				if (!nameNfc) throw new Error('Invalid Params unexpectedly passed. This is a BUG. Please report it to the development team.');
-				const emoji = await this.customEmojiService.getEmojiByName(ps.name);
+				const emoji = await this.customEmojiService.getEmojiByName(nameNfc);
 				if (!emoji) throw new ApiError(meta.errors.noSuchEmoji);
 				emojiId = emoji.id;
 			}
 
 			await this.customEmojiService.update(emojiId, {
 				driveFile,
-				name: ps.name,
+				name: nameNfc,
-				category: ps.category,
+				category: ps.category?.normalize('NFC'),
-				aliases: ps.aliases,
+				aliases: ps.aliases?.map(a => a.normalize('NFC')),
 				license: ps.license,
 				isSensitive: ps.isSensitive,
 				localOnly: ps.localOnly,

packages/frontend/src/components/MkAutocomplete.vue

@@ -238,7 +238,7 @@ function exec() {
 			return;
 		}
 
-		emojis.value = searchEmoji(props.q.toLowerCase(), emojiDb.value);
+		emojis.value = searchEmoji(props.q.normalize('NFC').toLowerCase(), emojiDb.value);
 	} else if (props.type === 'mfmTag') {
 		if (!props.q || props.q === '') {
 			mfmTags.value = MFM_TAGS;

packages/frontend/src/components/MkEmojiPicker.vue

@@ -205,7 +205,7 @@ watch(q, () => {
 		return;
 	}
 
-	const newQ = q.value.replace(/:/g, '').toLowerCase();
+	const newQ = q.value.replace(/:/g, '').normalize('NFC').toLowerCase();
 
 	const searchCustom = () => {
 		const max = 100;

packages/frontend/src/pages/emoji-edit-dialog.vue

@@ -33,7 +33,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 					</div>
 				</div>
 				<MkButton rounded style="margin: 0 auto;" @click="changeImage">{{ i18n.ts.selectFile }}</MkButton>
-				<MkInput v-model="name" pattern="[a-z0-9_]" autocapitalize="off">
+				<MkInput v-model="name" autocapitalize="off">
 					<template #label>{{ i18n.ts.name }}</template>
 				</MkInput>
 				<MkInput v-model="category" :datalist="customEmojiCategories">

packages/frontend/src/scripts/autocomplete.ts

@@ -99,7 +99,7 @@ export class Autocomplete {
 		const isHashtag = hashtagIndex !== -1;
 		const isMfmParam = mfmParamIndex !== -1 && afterLastMfmParam?.includes('.') && !afterLastMfmParam?.includes(' ');
 		const isMfmTag = mfmTagIndex !== -1 && !isMfmParam;
-		const isEmoji = emojiIndex !== -1 && text.split(/:[a-z0-9_+\-]+:/).pop()!.includes(':');
+		const isEmoji = emojiIndex !== -1 && text.split(/:[\p{Letter}\p{Number}\p{Mark}_+-]+:/u).pop()!.includes(':');
 
 		let opened = false;
 
@@ -125,7 +125,7 @@ export class Autocomplete {
 		if (isEmoji && !opened && this.onlyType.includes('emoji')) {
 			const emoji = text.substring(emojiIndex + 1);
 			if (!emoji.includes(' ')) {
-				this.open('emoji', emoji);
+				this.open('emoji', emoji.normalize('NFC'));
 				opened = true;
 			}
 		}