Feat: UGCの公開範囲設定機能 (#15938)

* wip

* Update CHANGELOG.md

* wip

* wip

* Update show.ts

7 files changed, 79 insertions, 4 deletions

diff --git a/packages/backend/migration/1746330901644-visibleUserGeneratedContentsForNonLoggedInVisitors.js b/packages/backend/migration/1746330901644-visibleUserGeneratedContentsForNonLoggedInVisitors.js
new file mode 100644
index 0000000000..115698a420
--- /dev/null
+++ b/packages/backend/migration/1746330901644-visibleUserGeneratedContentsForNonLoggedInVisitors.js
@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+export class VisibleUserGeneratedContentsForNonLoggedInVisitors1746330901644 {
+    name = 'VisibleUserGeneratedContentsForNonLoggedInVisitors1746330901644'
+
+    async up(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" ADD "ugcVisibilityForVisitor" character varying(128) NOT NULL DEFAULT 'local'`);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "ugcVisibilityForVisitor"`);
+    }
+}
diff --git a/packages/backend/src/models/Meta.ts b/packages/backend/src/models/Meta.ts
index 46f3b2e3c0..95d19c8075 100644
--- a/packages/backend/src/models/Meta.ts
+++ b/packages/backend/src/models/Meta.ts
@@ -660,6 +660,12 @@ export class MiMeta {
 	public federationHosts: string[];
 
 	@Column('varchar', {
+		length: 128,
+		default: 'local',
+	})
+	public ugcVisibilityForVisitor: 'all' | 'local' | 'none';
+
+	@Column('varchar', {
 		length: 64,
 		nullable: true,
 	})
diff --git a/packages/backend/src/server/api/endpoints/admin/meta.ts b/packages/backend/src/server/api/endpoints/admin/meta.ts
index 4a106e7175..cb48a1bc95 100644
--- a/packages/backend/src/server/api/endpoints/admin/meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/meta.ts
@@ -546,6 +546,11 @@ export const meta = {
 					},
 				},
 			},
+			ugcVisibilityForVisitor: {
+				type: 'string',
+				enum: ['all', 'local', 'none'],
+				optional: false, nullable: false,
+			},
 		},
 	},
 } as const;
@@ -691,6 +696,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				federation: instance.federation,
 				federationHosts: instance.federationHosts,
 				deliverSuspendedSoftware: instance.deliverSuspendedSoftware,
+				ugcVisibilityForVisitor: instance.ugcVisibilityForVisitor,
 			};
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index 31eeaa5e38..fc6b890b69 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -196,6 +196,10 @@ export const paramDef = {
 				required: ['software', 'versionRange'],
 			},
 		},
+		ugcVisibilityForVisitor: {
+			type: 'string',
+			enum: ['all', 'local', 'none'],
+		},
 	},
 	required: [],
 } as const;
@@ -690,6 +694,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.federationHosts = ps.federationHosts.filter(Boolean).map(x => x.toLowerCase());
 			}
 
+			if (ps.ugcVisibilityForVisitor !== undefined) {
+				set.ugcVisibilityForVisitor = ps.ugcVisibilityForVisitor;
+			}
+
 			const before = await this.metaService.fetch(true);
 
 			await this.metaService.update(set);
diff --git a/packages/backend/src/server/api/endpoints/notes/show.ts b/packages/backend/src/server/api/endpoints/notes/show.ts
index 11839bce36..b93c73b0c5 100644
--- a/packages/backend/src/server/api/endpoints/notes/show.ts
+++ b/packages/backend/src/server/api/endpoints/notes/show.ts
@@ -3,10 +3,12 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { GetterService } from '@/server/api/GetterService.js';
+import { DI } from '@/di-symbols.js';
+import { MiMeta } from '@/models/Meta.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
@@ -46,6 +48,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		private noteEntityService: NoteEntityService,
 		private getterService: GetterService,
 	) {
@@ -59,6 +64,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.signinRequired);
 			}
 
+			if (this.serverSettings.ugcVisibilityForVisitor === 'none' && me == null) {
+				throw new ApiError(meta.errors.signinRequired);
+			}
+
+			if (this.serverSettings.ugcVisibilityForVisitor === 'local' && note.userHost != null && me == null) {
+				throw new ApiError(meta.errors.signinRequired);
+			}
+
 			return await this.noteEntityService.pack(note, me, {
 				detail: true,
 			});
diff --git a/packages/backend/src/server/api/endpoints/users/show.ts b/packages/backend/src/server/api/endpoints/users/show.ts
index 062326e28d..431869d47f 100644
--- a/packages/backend/src/server/api/endpoints/users/show.ts
+++ b/packages/backend/src/server/api/endpoints/users/show.ts
@@ -5,7 +5,7 @@
 
 import { In, IsNull } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { UsersRepository } from '@/models/_.js';
+import type { MiMeta, UsersRepository } from '@/models/_.js';
 import type { MiUser } from '@/models/User.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
@@ -82,6 +82,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		@Inject(DI.usersRepository)
 		private usersRepository: UsersRepository,
 
@@ -92,6 +95,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private apiLoggerService: ApiLoggerService,
 	) {
 		super(meta, paramDef, async (ps, me, _1, _2, _3, ip) => {
+			if (this.serverSettings.ugcVisibilityForVisitor === 'none' && me == null) {
+				throw new ApiError(meta.errors.noSuchUser);
+			}
+
 			let user;
 
 			const isModerator = await this.roleService.isModerator(me);
@@ -123,6 +130,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			} else {
 				// Lookup user
 				if (typeof ps.host === 'string' && typeof ps.username === 'string') {
+					if (this.serverSettings.ugcVisibilityForVisitor === 'local' && me == null) {
+						throw new ApiError(meta.errors.noSuchUser);
+					}
+
 					user = await this.remoteUserResolveService.resolveUser(ps.username, ps.host).catch(err => {
 						this.apiLoggerService.logger.warn(`failed to resolve remote user: ${err}`);
 						throw new ApiError(meta.errors.failedToResolveRemoteUser);
@@ -139,6 +150,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 					throw new ApiError(meta.errors.noSuchUser);
 				}
 
+				if (this.serverSettings.ugcVisibilityForVisitor === 'local' && user.host != null && me == null) {
+					throw new ApiError(meta.errors.noSuchUser);
+				}
+
 				if (user.host == null) {
 					if (me == null && ip != null) {
 						this.perUserPvChart.commitByVisitor(user, ip);
diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 30a911088e..9a33d27d86 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -513,7 +513,12 @@ export class ClientServerService {
 
 			vary(reply.raw, 'Accept');
 
-			if (user != null) {
+			if (
+				user != null && (
+					this.meta.ugcVisibilityForVisitor === 'all' ||
+						(this.meta.ugcVisibilityForVisitor === 'local' && user.host == null)
+				)
+			) {
 				const profile = await this.userProfilesRepository.findOneByOrFail({ userId: user.id });
 				const me = profile.fields
 					? profile.fields
@@ -577,7 +582,13 @@ export class ClientServerService {
 				relations: ['user'],
 			});
 
-			if (note && !note.user!.requireSigninToViewContents) {
+			if (
+				note &&
+				!note.user!.requireSigninToViewContents &&
+				(this.meta.ugcVisibilityForVisitor === 'all' ||
+					(this.meta.ugcVisibilityForVisitor === 'local' && note.userHost == null)
+				)
+			) {
 				const _note = await this.noteEntityService.pack(note);
 				const profile = await this.userProfilesRepository.findOneByOrFail({ userId: note.userId });
 				reply.header('Cache-Control', 'public, max-age=15');