feat: require a special registration word in registration reason (#2)

A crude way to prune out people who don't read the rules. The hint is in
the bottom of the rules generally.

packages/backend/migration/1743894419864-AddRegWordFieldsToMeta.js

@@ -0,0 +1,20 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { MigrationInterface, QueryRunner } from "typeorm";
+
+export class AddRegWordFieldsToMeta1743894419864 implements MigrationInterface {
+    name = 'AddRegWordFieldsToMeta1743894419864'
+
+    public async up(queryRunner: QueryRunner): Promise<void> {
+        await queryRunner.query(`ALTER TABLE "meta" ADD "regWordRequired" boolean NOT NULL DEFAULT false`);
+        await queryRunner.query(`ALTER TABLE "meta" ADD "registrationWord" character varying(1024)`);
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<void> {
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "registrationWord"`);
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "regWordRequired"`);
+    }
+}

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

@@ -86,6 +86,8 @@ export class MetaEntityService {
 			disableRegistration: instance.disableRegistration,
 			emailRequiredForSignup: instance.emailRequiredForSignup,
 			approvalRequiredForSignup: instance.approvalRequiredForSignup,
+			regWordRequired: instance.regWordRequired,
+			registrationWord: instance.registrationWord,
 			enableHcaptcha: instance.enableHcaptcha,
 			hcaptchaSiteKey: instance.hcaptchaSiteKey,
 			enableMcaptcha: instance.enableMcaptcha,

packages/backend/src/models/Meta.ts

@@ -139,9 +139,8 @@ export class MiMeta {
 	})
 	public logoImageUrl: string | null;
 
-	@Column('varchar', {
-		length: 1024,
-		nullable: true,
+	@Column('boolean', {
+		default: false,
 	})
 	public iconUrl: string | null;
 
@@ -204,6 +203,18 @@ export class MiMeta {
 	@Column('boolean', {
 		default: false,
 	})
+	public regWordRequired: boolean;
+
+	@Column('varchar', {
+		length: 1024,
+		nullable: true,
+	})
+	public registrationWord: string | null;
+
+	@Column('varchar', {
+		length: 1024,
+		nullable: true,
+	})
 	public enableHcaptcha: boolean;
 
 	@Column('varchar', {

packages/backend/src/models/json-schema/meta.ts

@@ -313,6 +313,14 @@ export const packedMetaLiteSchema = {
 			type: 'string',
 			optional: false, nullable: true,
 		},
+		regWordRequired: {
+			type: 'boolean',
+			optional: false, nullable: false,
+		},
+		registrationWord: {
+			type: 'string',
+			optional: false, nullable: true,
+		},
 		privacyPolicyUrl: {
 			type: 'string',
 			optional: false, nullable: true,

packages/backend/src/server/api/endpoints/admin/meta.ts

@@ -39,6 +39,14 @@ export const meta = {
 				type: 'boolean',
 				optional: false, nullable: false,
 			},
+			registrationWord: {
+				type: 'string',
+				optional: false, nullable: true,
+			},
+			regWordRequired: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
 			enableHcaptcha: {
 				type: 'boolean',
 				optional: false, nullable: false,
@@ -657,6 +665,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				disableRegistration: instance.disableRegistration,
 				emailRequiredForSignup: instance.emailRequiredForSignup,
 				approvalRequiredForSignup: instance.approvalRequiredForSignup,
+				registrationWord: instance.registrationWord,
+				regWordRequired: instance.regWordRequired,
 				enableHcaptcha: instance.enableHcaptcha,
 				hcaptchaSiteKey: instance.hcaptchaSiteKey,
 				enableMcaptcha: instance.enableMcaptcha,

packages/backend/src/server/api/endpoints/admin/update-meta.ts

@@ -74,6 +74,8 @@ export const paramDef = {
 		cacheRemoteSensitiveFiles: { type: 'boolean' },
 		emailRequiredForSignup: { type: 'boolean' },
 		approvalRequiredForSignup: { type: 'boolean' },
+		regWordRequired: { type: 'boolean', nullable: false },
+		registrationWord: { type: 'string', nullable: true },
 		enableHcaptcha: { type: 'boolean' },
 		hcaptchaSiteKey: { type: 'string', nullable: true },
 		hcaptchaSecretKey: { type: 'string', nullable: true },
@@ -357,6 +359,14 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.approvalRequiredForSignup = ps.approvalRequiredForSignup;
 			}
 
+			if (ps.registrationWord !== undefined) {
+				set.registrationWord = ps.registrationWord;
+			}
+
+			if (ps.regWordRequired !== undefined) {
+				set.regWordRequired = ps.regWordRequired;
+			}
+
 			if (ps.enableHcaptcha !== undefined) {
 				set.enableHcaptcha = ps.enableHcaptcha;
 			}