feat: 登録を拒否するメールアドレスのドメインを手動で設定できるように (#12740)

* feat: 使い捨てアドレスのドメインを手動で設定できるように

* Update CHANGELOG.md

* disposableEmailDomains -> bannedEmailDomains

* isBlockedHostを使うように

4 files changed, 29 insertions, 2 deletions

diff --git a/packages/backend/src/core/EmailService.ts b/packages/backend/src/core/EmailService.ts
index d4508d5313..6107b9601c 100644
--- a/packages/backend/src/core/EmailService.ts
+++ b/packages/backend/src/core/EmailService.ts
@@ -9,6 +9,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import { validate as validateEmail } from 'deep-email-validator';
 import { SubOutputFormat } from 'deep-email-validator/dist/output/output.js';
 import { MetaService } from '@/core/MetaService.js';
+import { UtilityService } from '@/core/UtilityService.js';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
 import type Logger from '@/logger.js';
@@ -30,6 +31,7 @@ export class EmailService {
 
 		private metaService: MetaService,
 		private loggerService: LoggerService,
+		private utilityService: UtilityService,
 		private httpRequestService: HttpRequestService,
 	) {
 		this.logger = this.loggerService.getLogger('email');
@@ -155,7 +157,7 @@ export class EmailService {
 	@bindThis
 	public async validateEmailForAccount(emailAddress: string): Promise<{
 		available: boolean;
-		reason: null | 'used' | 'format' | 'disposable' | 'mx' | 'smtp';
+		reason: null | 'used' | 'format' | 'disposable' | 'mx' | 'smtp' | 'banned';
 	}> {
 		const meta = await this.metaService.fetch();
 
@@ -184,12 +186,16 @@ export class EmailService {
 			validated = { valid: true, reason: null };
 		}
 
-		const available = exist === 0 && validated.valid;
+		const emailDomain: string = emailAddress.split('@')[1];
+		const isBanned = this.utilityService.isBlockedHost(meta.bannedEmailDomains, emailDomain);
+
+		const available = exist === 0 && validated.valid && !isBanned;
 
 		return {
 			available,
 			reason: available ? null :
 			exist !== 0 ? 'used' :
+			isBanned ? 'banned' :
 			validated.reason === 'regex' ? 'format' :
 			validated.reason === 'disposable' ? 'disposable' :
 			validated.reason === 'mx' ? 'mx' :
diff --git a/packages/backend/src/models/Meta.ts b/packages/backend/src/models/Meta.ts
index 83e8962f5d..84ca762492 100644
--- a/packages/backend/src/models/Meta.ts
+++ b/packages/backend/src/models/Meta.ts
@@ -496,6 +496,13 @@ export class MiMeta {
 	public manifestJsonOverride: string;
 
 	@Column('varchar', {
+		length: 1024,
+		array: true,
+		default: '{}',
+	})
+	public bannedEmailDomains: string[];
+
+	@Column('varchar', {
 		length: 1024, array: true, default: '{ "admin", "administrator", "root", "system", "maintainer", "host", "mod", "moderator", "owner", "superuser", "staff", "auth", "i", "me", "everyone", "all", "mention", "mentions", "example", "user", "users", "account", "accounts", "official", "help", "helps", "support", "supports", "info", "information", "informations", "announce", "announces", "announcement", "announcements", "notice", "notification", "notifications", "dev", "developer", "developers", "tech", "misskey" }',
 	})
 	public preservedUsernames: string[];
diff --git a/packages/backend/src/server/api/endpoints/admin/meta.ts b/packages/backend/src/server/api/endpoints/admin/meta.ts
index 07912154bd..6f8494d1d0 100644
--- a/packages/backend/src/server/api/endpoints/admin/meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/meta.ts
@@ -145,6 +145,14 @@ export const meta = {
 					type: 'string',
 				},
 			},
+			bannedEmailDomains: {
+				type: 'array',
+				optional: true, nullable: false,
+				items: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+			},
 			preservedUsernames: {
 				type: 'array',
 				optional: false, nullable: false,
@@ -513,6 +521,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				enableChartsForFederatedInstances: instance.enableChartsForFederatedInstances,
 				enableServerMachineStats: instance.enableServerMachineStats,
 				enableIdenticonGeneration: instance.enableIdenticonGeneration,
+				bannedEmailDomains: instance.bannedEmailDomains,
 				policies: { ...DEFAULT_POLICIES, ...instance.policies },
 				manifestJsonOverride: instance.manifestJsonOverride,
 				enableFanoutTimeline: instance.enableFanoutTimeline,
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 293a95a9a4..5f9de0523e 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -122,6 +122,7 @@ export const paramDef = {
 		enableServerMachineStats: { type: 'boolean' },
 		enableIdenticonGeneration: { type: 'boolean' },
 		serverRules: { type: 'array', items: { type: 'string' } },
+		bannedEmailDomains: { type: 'array', items: { type: 'string' } },
 		preservedUsernames: { type: 'array', items: { type: 'string' } },
 		manifestJsonOverride: { type: 'string' },
 		enableFanoutTimeline: { type: 'boolean' },
@@ -526,6 +527,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.notesPerOneAd = ps.notesPerOneAd;
 			}
 
+			if (ps.bannedEmailDomains !== undefined) {
+				set.bannedEmailDomains = ps.bannedEmailDomains;
+			}
+
 			const before = await this.metaService.fetch(true);
 
 			await this.metaService.update(set);