upd: add FriendlyCaptcha as a captcha solution

FriendlyCaptcha is a german captcha solution which is GDPR compliant and has a non-commerical free license

packages/backend/src/server/api/ApiServerService.ts

@@ -118,6 +118,7 @@ export class ApiServerService {
 				'hcaptcha-response'?: string;
 				'g-recaptcha-response'?: string;
 				'turnstile-response'?: string;
+				'frc-captcha-solution'?: string;
 			}
 		}>('/signup', (request, reply) => this.signupApiService.signup(request, reply));
 

packages/backend/src/server/api/SignupApiService.ts

@@ -72,6 +72,7 @@ export class SignupApiService {
 				'g-recaptcha-response'?: string;
 				'turnstile-response'?: string;
 				'm-captcha-response'?: string;
+				'frc-captcha-solution'?: string;
 			}
 		}>,
 		reply: FastifyReply,
@@ -104,6 +105,12 @@ export class SignupApiService {
 					throw new FastifyReplyError(400, err);
 				});
 			}
+
+			if (this.meta.enableFC && this.meta.fcSecretKey) {
+				await this.captchaService.verifyFriendlyCaptcha(this.meta.fcSecretKey, body['frc-captcha-solution']).catch(err => {
+					throw new FastifyReplyError(400, err);
+				});
+			}
 		}
 
 		const username = body['username'];

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

@@ -73,6 +73,14 @@ export const meta = {
 				type: 'string',
 				optional: false, nullable: true,
 			},
+			enableFC: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
+			fcSiteKey: {
+				type: 'string',
+				optional: false, nullable: true,
+			},
 			swPublickey: {
 				type: 'string',
 				optional: false, nullable: true,
@@ -219,6 +227,10 @@ export const meta = {
 				type: 'string',
 				optional: false, nullable: true,
 			},
+			fcSecretKey: {
+				type: 'string',
+				optional: false, nullable: true,
+			},
 			sensitiveMediaDetection: {
 				type: 'string',
 				optional: false, nullable: false,
@@ -600,6 +612,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				recaptchaSiteKey: instance.recaptchaSiteKey,
 				enableTurnstile: instance.enableTurnstile,
 				turnstileSiteKey: instance.turnstileSiteKey,
+				enableFC: instance.enableFC,
+				fcSiteKey: instance.fcSiteKey,
 				swPublickey: instance.swPublicKey,
 				themeColor: instance.themeColor,
 				mascotImageUrl: instance.mascotImageUrl,
@@ -634,6 +648,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				mcaptchaSecretKey: instance.mcaptchaSecretKey,
 				recaptchaSecretKey: instance.recaptchaSecretKey,
 				turnstileSecretKey: instance.turnstileSecretKey,
+				fcSecretKey: instance.fcSecretKey,
 				sensitiveMediaDetection: instance.sensitiveMediaDetection,
 				sensitiveMediaDetectionSensitivity: instance.sensitiveMediaDetectionSensitivity,
 				setSensitiveFlagAutomatically: instance.setSensitiveFlagAutomatically,

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

@@ -81,6 +81,9 @@ export const paramDef = {
 		enableTurnstile: { type: 'boolean' },
 		turnstileSiteKey: { type: 'string', nullable: true },
 		turnstileSecretKey: { type: 'string', nullable: true },
+		enableFC: { type: 'boolean' },
+		fcSiteKey: { type: 'string', nullable: true },
+		fcSecretKey: { type: 'string', nullable: true },
 		sensitiveMediaDetection: { type: 'string', enum: ['none', 'all', 'local', 'remote'] },
 		sensitiveMediaDetectionSensitivity: { type: 'string', enum: ['medium', 'low', 'high', 'veryLow', 'veryHigh'] },
 		setSensitiveFlagAutomatically: { type: 'boolean' },
@@ -383,6 +386,18 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.turnstileSecretKey = ps.turnstileSecretKey;
 			}
 
+			if (ps.enableFC !== undefined) {
+				set.enableFC = ps.enableFC;
+			}
+
+			if (ps.fcSiteKey !== undefined) {
+				set.fcSiteKey = ps.fcSiteKey;
+			}
+
+			if (ps.fcSecretKey !== undefined) {
+				set.fcSecretKey = ps.fcSecretKey;
+			}
+
 			if (ps.enableBotTrending !== undefined) {
 				set.enableBotTrending = ps.enableBotTrending;
 			}