Feature Request: Implement SSO/SAML Authentication

[mustafaneguib]

Implement SSO/SAML Authentication

Priority

HIGH - Team+ tier, enterprise requirement

Labels

enhancement, security, backend, authentication

Description

Add Single Sign-On (SSO) support with SAML 2.0 protocol for enterprise customers. Allows users to log in using corporate identity providers (Google Workspace, Microsoft Azure AD, Okta).

Current State

• Basic email/password authentication exists
• Google OAuth implemented for Google services (Ads, Analytics)
• No enterprise SSO support
• Token-based authentication (TokenProcessor)

Evidence:

// backend/src/routes/oauth.ts - OAuth pattern exists
// backend/src/services/GoogleOAuthService.ts - OAuth foundation

Implementation Overview

SAML 2.0 Flow

1. User clicks "Login with SSO"
2. User enters company domain
3. Redirect to IdP login page
4. IdP authenticates user
5. IdP sends SAML assertion
6. Backend validates assertion
7. Create/update user account
8. Issue JWT token

Required Components

1. SAML Service Provider - Handle SAML protocol
2. IdP Configuration Table - Store SAML settings per organization
3. SSO User Mapping - Link SSO identities to platform users
4. Domain Verification - Verify company domain ownership
5. Admin SSO Setup UI - Configure SAML settings

Key Features

• Multiple IdP Support: Google, Microsoft, Okta, OneLogin, custom
• Just-in-Time Provisioning: Auto-create users on first SSO login
• Domain-based Routing: Auto-detect IdP by email domain
• Attribute Mapping: Map SAML attributes to user fields
• Session Management: Handle SSO logout (SLO)

Database Schema

// Models needed:
- DRAOrganization
- DRASSOConfiguration
- DRASSOUserMapping
- DRADomainVerification

Libraries

• passport-saml - SAML 2.0 authentication
• saml2-js - Alternative SAML library
• xml-crypto - XML signature validation

Dependencies

• Organization/tenant system (Issue DRA-8-integrate-google-recaptcha #10)
• RBAC system (Issue DRA-9-separate-out-the-marketing #3)
• Email verification for domain ownership
• SSL certificates for SAML endpoints

Security Considerations

• SAML Assertion Validation: Verify signatures
• Replay Attack Prevention: Check NotBefore/NotOnOrAfter
• Certificate Management: Store and rotate SAML certs
• Audit Logging: Log all SSO attempts
• Session Timeout: Honor IdP session timeouts

Estimated Effort

• SAML integration: 12 hours
• Database schema: 6 hours
• IdP configuration API: 8 hours
• Domain verification: 6 hours
• Admin UI: 10 hours
• Testing with multiple IdPs: 10 hours
• Documentation: 4 hours
• Total: ~56 hours (7 developer days)

Success Criteria

• Users log in via Google Workspace SSO
• Users log in via Microsoft Azure AD SSO
• Users log in via Okta SSO
• JIT provisioning creates users automatically
• Domain verification prevents unauthorized access
• SSO logout works correctly
• Error handling for invalid SAML responses
• Audit trail of SSO events

Testing Strategy

• Unit tests for SAML parsing
• Integration tests with SAML test IdP
• Manual testing with real IdPs (Google, Microsoft, Okta)
• Security audit of SAML validation
• Load testing with concurrent SSO logins

Future Enhancements

• SCIM provisioning (automated user sync)
• OpenID Connect (OIDC) support
• Multi-factor authentication (MFA) enforcement
• Device trust verification
• Conditional access policies

[DarshanCode2005]

@mustafaneguib please assign me I would like to contribute.

[mustafaneguib]

@DarshanCode2005 go ahead, I have assigned you this issue.

[mustafaneguib]

@DarshanCode2005 please create a fork from the repo and share pull request one you complete the development. If you are using AI to develop, I recommend using Claude Sonnet 4.5 as it is pretty good.

[mustafaneguib]

@DarshanCode2005 are you facing any issues in setting up the project on your local system?

[DarshanCode2005]

Hi @mustafaneguib sir, the setup was straightforward , I didn't face any problem. I am working on the issue, I will update you when it is done. Thanks!

[mustafaneguib]

@DarshanCode2005 is there any update regarding this issue? Please share the pull request as soon as possible.