feat: media silence (#13842)

* feat: media silence

* fix: lint

* feat: deny creating custom emoji reaction and using custom emoji from media silenced hosts

* chore: メディアサイレンスの説明にカスタム絵文字の話を追加

* Update locales/ja-JP.yml

Co-authored-by: Sayamame-beans <61457993+Sayamame-beans@users.noreply.github.com>

* chore: update index.d.ts

* docs(changelog): update changelog

---------

Co-authored-by: Sayamame-beans <61457993+Sayamame-beans@users.noreply.github.com>

packages/backend/src/core/DriveService.ts

@@ -43,6 +43,7 @@ import { RoleService } from '@/core/RoleService.js';
 import { correctFilename } from '@/misc/correct-filename.js';
 import { isMimeImage } from '@/misc/is-mime-image.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { UtilityService } from '@/core/UtilityService.js';
 
 type AddFileArgs = {
 	/** User who wish to add file */
@@ -127,6 +128,7 @@ export class DriveService {
 		private driveChart: DriveChart,
 		private perUserDriveChart: PerUserDriveChart,
 		private instanceChart: InstanceChart,
+		private utilityService: UtilityService,
 	) {
 		const logger = new Logger('drive', 'blue');
 		this.registerLogger = logger.createSubLogger('register', 'yellow');
@@ -587,6 +589,7 @@ export class DriveService {
 			sensitive ?? false
 			: false;
 
+		if (user && this.utilityService.isMediaSilencedHost(instance.mediaSilencedHosts, user.host)) file.isSensitive = true;
 		if (info.sensitive && profile!.autoSensitive) file.isSensitive = true;
 		if (info.sensitive && instance.setSensitiveFlagAutomatically) file.isSensitive = true;
 		if (userRoleNSFW) file.isSensitive = true;

packages/backend/src/core/NoteCreateService.ts

@@ -364,6 +364,9 @@ export class NoteCreateService implements OnApplicationShutdown {
 			mentionedUsers = data.apMentions ?? await this.extractMentionedUsers(user, combinedTokens);
 		}
 
+		// if the host is media-silenced, custom emojis are not allowed
+		if (this.utilityService.isMediaSilencedHost(meta.mediaSilencedHosts, user.host)) emojis = [];
+
 		tags = tags.filter(tag => Array.from(tag).length <= 128).splice(0, 32);
 
 		if (data.reply && (user.id !== data.reply.userId) && !mentionedUsers.some(u => u.id === data.reply!.userId)) {

packages/backend/src/core/ReactionService.ts

@@ -105,6 +105,8 @@ export class ReactionService {
 
 	@bindThis
 	public async create(user: { id: MiUser['id']; host: MiUser['host']; isBot: MiUser['isBot'] }, note: MiNote, _reaction?: string | null) {
+		const meta = await this.metaService.fetch();
+
 		// Check blocking
 		if (note.userId !== user.id) {
 			const blocked = await this.userBlockingService.checkBlocked(note.userId, user.id);
@@ -148,6 +150,11 @@ export class ReactionService {
 						if ((note.reactionAcceptance === 'nonSensitiveOnly' || note.reactionAcceptance === 'nonSensitiveOnlyForLocalLikeOnlyForRemote') && emoji.isSensitive) {
 							reaction = FALLBACK;
 						}
+
+						// for media silenced host, custom emoji reactions are not allowed
+						if (reacterHost != null && this.utilityService.isMediaSilencedHost(meta.mediaSilencedHosts, reacterHost)) {
+							reaction = FALLBACK;
+						}
 					} else {
 						// リアクションとして使う権限がない
 						reaction = FALLBACK;
@@ -220,8 +227,6 @@ export class ReactionService {
 			}
 		}
 
-		const meta = await this.metaService.fetch();
-
 		if (meta.enableChartsForRemoteUser || (user.host == null)) {
 			this.perUserReactionsChart.update(user, note);
 		}

packages/backend/src/core/UtilityService.ts

@@ -42,6 +42,12 @@ export class UtilityService {
 		return silencedHosts.some(x => `.${host.toLowerCase()}`.endsWith(`.${x}`));
 	}
 
+	@bindThis
+	public isMediaSilencedHost(silencedHosts: string[] | undefined, host: string | null): boolean {
+		if (!silencedHosts || host == null) return false;
+		return silencedHosts.some(x => host.toLowerCase() === x);
+	}
+
 	@bindThis
 	public concatNoteContentsForKeyWordCheck(content: {
 		cw?: string | null;

packages/backend/src/core/entities/InstanceEntityService.ts

@@ -50,6 +50,7 @@ export class InstanceEntityService {
 			maintainerName: instance.maintainerName,
 			maintainerEmail: instance.maintainerEmail,
 			isSilenced: this.utilityService.isSilencedHost(meta.silencedHosts, instance.host),
+			isMediaSilenced: this.utilityService.isMediaSilencedHost(meta.mediaSilencedHosts, instance.host),
 			iconUrl: instance.iconUrl,
 			faviconUrl: instance.faviconUrl,
 			themeColor: instance.themeColor,