GH-3546 Recaptcha on login form (#4626)

## Description

This PR adds recaptcha on login form. One can add any one of three
recaptcha vendor -
1. Google Recaptcha -
https://developers.google.com/recaptcha/docs/v3#programmatically_invoke_the_challenge
2. HCaptcha -
https://docs.hcaptcha.com/invisible#programmatically-invoke-the-challenge
3. Turnstile -
https://developers.cloudflare.com/turnstile/get-started/client-side-rendering/#execution-modes

### Issue
- #3546 

### Environment variables - 
1. `CAPTCHA_DRIVER` - `google-recaptcha` | `hcaptcha` | `turnstile`
2. `CAPTCHA_SITE_KEY` - site key
3. `CAPTCHA_SECRET_KEY` - secret key

### Engineering choices
1. If some of the above env variable provided, then, backend generates
an error -
<img width="990" alt="image"
src="https://github.com/twentyhq/twenty/assets/60139930/9fb00fab-9261-4ff3-b23e-2c2e06f1bf89">
    Please note that login/signup form will keep working as expected.
2. I'm using a Captcha guard that intercepts the request. If
"captchaToken" is present in the body and all env is set, then, the
captcha token is verified by backend through the service.
3. One can use this guard on any resolver to protect it by the captcha.
4. On frontend, two hooks `useGenerateCaptchaToken` and
`useInsertCaptchaScript` is created. `useInsertCaptchaScript` adds the
respective captcha JS script on frontend. `useGenerateCaptchaToken`
returns a function that one can use to trigger captcha token generation
programatically. This allows one to generate token keeping recaptcha
invisible.

### Note
This PR contains some changes in unrelated files like indentation,
spacing, inverted comma etc. I ran "yarn nx fmt:fix twenty-front" and
"yarn nx lint twenty-front -- --fix".

### Screenshots

<img width="869" alt="image"
src="https://github.com/twentyhq/twenty/assets/60139930/a75f5677-9b66-47f7-9730-4ec916073f8c">

---------

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/engine/core-modules/auth/auth.resolver.spec.ts

@@ -1,10 +1,12 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { getRepositoryToken } from '@nestjs/typeorm';
+import { CanActivate } from '@nestjs/common';
 
 import { Workspace } from 'src/engine/core-modules/workspace/workspace.entity';
 import { UserService } from 'src/engine/core-modules/user/services/user.service';
 import { UserWorkspaceService } from 'src/engine/core-modules/user-workspace/user-workspace.service';
 import { User } from 'src/engine/core-modules/user/user.entity';
+import { CaptchaGuard } from 'src/engine/integrations/captcha/captcha.guard';
 
 import { AuthResolver } from './auth.resolver';
 
@@ -13,6 +15,7 @@ import { AuthService } from './services/auth.service';
 
 describe('AuthResolver', () => {
   let resolver: AuthResolver;
+  const mock_CaptchaGuard: CanActivate = { canActivate: jest.fn(() => true) };
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
@@ -43,7 +46,10 @@ describe('AuthResolver', () => {
           useValue: {},
         },
       ],
-    }).compile();
+    })
+      .overrideGuard(CaptchaGuard)
+      .useValue(mock_CaptchaGuard)
+      .compile();
 
     resolver = module.get<AuthResolver>(AuthResolver);
   });

packages/twenty-server/src/engine/core-modules/auth/auth.resolver.ts

@@ -32,6 +32,7 @@ import { AuthorizeApp } from 'src/engine/core-modules/auth/dto/authorize-app.ent
 import { AuthorizeAppInput } from 'src/engine/core-modules/auth/dto/authorize-app.input';
 import { ExchangeAuthCodeInput } from 'src/engine/core-modules/auth/dto/exchange-auth-code.input';
 import { ExchangeAuthCode } from 'src/engine/core-modules/auth/dto/exchange-auth-code.entity';
+import { CaptchaGuard } from 'src/engine/integrations/captcha/captcha.guard';
 
 import { ApiKeyToken, AuthTokens } from './dto/token.entity';
 import { TokenService } from './services/token.service';
@@ -58,6 +59,7 @@ export class AuthResolver {
     private userWorkspaceService: UserWorkspaceService,
   ) {}
 
+  @UseGuards(CaptchaGuard)
   @Query(() => UserExists)
   async checkUserExists(
     @Args() checkUserExistsInput: CheckUserExistsInput,
@@ -87,6 +89,7 @@ export class AuthResolver {
     });
   }
 
+  @UseGuards(CaptchaGuard)
   @Mutation(() => LoginToken)
   async challenge(@Args() challengeInput: ChallengeInput): Promise<LoginToken> {
     const user = await this.authService.challenge(challengeInput);
@@ -95,6 +98,7 @@ export class AuthResolver {
     return { loginToken };
   }
 
+  @UseGuards(CaptchaGuard)
   @Mutation(() => LoginToken)
   async signUp(@Args() signUpInput: SignUpInput): Promise<LoginToken> {
     const user = await this.authService.signInUp({

packages/twenty-server/src/engine/core-modules/auth/dto/challenge.input.ts

@@ -1,6 +1,6 @@
 import { ArgsType, Field } from '@nestjs/graphql';
 
-import { IsEmail, IsNotEmpty, IsString } from 'class-validator';
+import { IsEmail, IsNotEmpty, IsOptional, IsString } from 'class-validator';
 
 @ArgsType()
 export class ChallengeInput {
@@ -13,4 +13,9 @@ export class ChallengeInput {
   @IsNotEmpty()
   @IsString()
   password: string;
+
+  @Field(() => String, { nullable: true })
+  @IsString()
+  @IsOptional()
+  captchaToken?: string;
 }

packages/twenty-server/src/engine/core-modules/auth/dto/sign-up.input.ts

@@ -18,4 +18,9 @@ export class SignUpInput {
   @IsString()
   @IsOptional()
   workspaceInviteHash?: string;
+
+  @Field(() => String, { nullable: true })
+  @IsString()
+  @IsOptional()
+  captchaToken?: string;
 }

packages/twenty-server/src/engine/core-modules/auth/dto/user-exists.input.ts

@@ -1,6 +1,6 @@
 import { ArgsType, Field } from '@nestjs/graphql';
 
-import { IsNotEmpty, IsString } from 'class-validator';
+import { IsNotEmpty, IsOptional, IsString } from 'class-validator';
 
 @ArgsType()
 export class CheckUserExistsInput {
@@ -8,4 +8,9 @@ export class CheckUserExistsInput {
   @IsString()
   @IsNotEmpty()
   email: string;
+
+  @Field(() => String, { nullable: true })
+  @IsString()
+  @IsOptional()
+  captchaToken?: string;
 }

packages/twenty-server/src/engine/core-modules/client-config/client-config.entity.ts

@@ -1,5 +1,7 @@
 import { Field, ObjectType } from '@nestjs/graphql';
 
+import { CaptchaDriverType } from 'src/engine/integrations/captcha/interfaces';
+
 @ObjectType()
 class AuthProviders {
   @Field(() => Boolean)
@@ -57,6 +59,15 @@ class Sentry {
   dsn?: string;
 }
 
+@ObjectType()
+class Captcha {
+  @Field(() => CaptchaDriverType, { nullable: true })
+  provider: CaptchaDriverType | undefined;
+
+  @Field(() => String, { nullable: true })
+  siteKey: string | undefined;
+}
+
 @ObjectType()
 export class ClientConfig {
   @Field(() => AuthProviders, { nullable: false })
@@ -82,4 +93,7 @@ export class ClientConfig {
 
   @Field(() => Sentry)
   sentry: Sentry;
+
+  @Field(() => Captcha)
+  captcha: Captcha;
 }

packages/twenty-server/src/engine/core-modules/client-config/client-config.resolver.ts

@@ -44,6 +44,10 @@ export class ClientConfigResolver {
         release: this.environmentService.get('SENTRY_RELEASE'),
         dsn: this.environmentService.get('SENTRY_FRONT_DSN'),
       },
+      captcha: {
+        provider: this.environmentService.get('CAPTCHA_DRIVER'),
+        siteKey: this.environmentService.get('CAPTCHA_SITE_KEY'),
+      },
     };
 
     return Promise.resolve(clientConfig);