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Implement comprehensive authentication system with modular architecture #35

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@rnavyaprabha rnavyaprabha commented Jul 19, 2025 •
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Implement Comprehensive Authentication System with Modular Architecture

📋 Overview

This PR introduces a complete authentication system overhaul, transforming the basic login/signup functionality into a secure, maintainable, and user-friendly authentication experience. The implementation follows modern web development best practices and provides a solid foundation for future authentication features.

�� Key Features Added

�� Enhanced Security

  • Password Complexity Requirements: Minimum 8 characters with comprehensive validation
    • At least one lowercase letter
    • At least one uppercase letter
    • At least one digit
    • At least one special character
  • Username Validation: 3-20 characters, alphanumeric with underscores/hyphens
  • Rate Limiting: Prevents brute force attacks (5 attempts per 15 minutes)
  • Weak Password Detection: Blocks common weak passwords
  • Reserved Username Protection: Prevents use of reserved words
  • Email Domain Validation: Comprehensive email validation with proper domain checking
    • Validates @ symbol presence
    • Checks for valid domain endings (.com, .org, .edu, .net, .gov, etc.)
    • Ensures realistic email format requirements

🔐 Multi-Provider Authentication

  • Google OAuth Integration: Seamless login/signup with Google accounts
    • Built-in Meteor OAuth implementation for security
    • Automatic user account linking via email
    • Popup-based authentication flow
    • Proper error handling and user feedback

🎨 Improved User Experience

  • Real-time Validation: Live feedback on username availability and password strength
  • Password Strength Indicator: Visual feedback with color-coded strength bars
  • Modern UI Design: Clean, responsive interface with proper loading states
  • Error Handling: Specific, user-friendly error messages
  • Auto-login: Seamless experience after account creation
  • Loading States: Proper visual feedback during authentication processes

🔄 Authentication Flow

  • Login System: Email-based login with password authentication
  • Signup System: Complete account creation with username, email, and password
  • Account Validation: Comprehensive validation for all user inputs
  • Forgot Password: Password reset functionality (in progress)

��️ Code Architecture

  • Modular Structure: Separated authentication logic into dedicated files
  • Reusable Components: Validation utilities that can be used elsewhere
  • Clean Separation: Client-side validation, server-side validation, and UI logic
  • Maintainable Code: Easy to extend and modify
  • Security Best Practices: Proper input sanitization and validation

🔧 Technical Implementation

  • Client-Side Validation: Real-time feedback for better UX
  • Server-Side Validation: Secure validation on the backend
  • Database Constraints: Unique indexes on usernames and emails
  • Error Handling: Comprehensive error management
  • OAuth Integration: Secure Google authentication flow

��️ Security Features

  • Input Sanitization: All user inputs are properly validated
  • Password Hashing: Secure password storage using Meteor's built-in hashing
  • Session Management: Proper session handling and token management
  • Rate Limiting: Protection against brute force attacks
  • OAuth Security: Secure Google OAuth implementation with proper token handling

📱 User Interface

  • Responsive Design: Works on all device sizes
  • Accessibility: Proper ARIA labels and keyboard navigation
  • Visual Feedback: Clear indication of validation states
  • Loading Indicators: Proper loading states for all async operations

🔄 Future Enhancements

  • Forgot Password: Currently in development
  • Email Verification: Enhanced email verification flow
  • Social Login: Additional OAuth providers (Facebook, GitHub, etc.)
  • Two-Factor Authentication: Enhanced security features

@rnavyaprabha rnavyaprabha marked this pull request as draft July 22, 2025 19:40
@rnavyaprabha rnavyaprabha self-assigned this Jul 26, 2025
@rnavyaprabha
feat: Add Google OAuth login and signup
fcc2392
@rnavyaprabha
refactor: Replace custom Google OAuth with Meteor's built-in loginWit…
d3f7837 
…hGoogle

- Remove custom OAuth implementation and token exchange logic
- Add ServiceConfiguration for Google OAuth setup
- Implement Accounts.setAdditionalFindUserOnExternalLogin for existing users
- Replace client-side custom popup with Meteor.loginWithGoogle()
- Update server startup to use upsertAsync for compatibility
- Simplify authentication flow and improve security
@rnavyaprabha
security: Remove settings.json from git tracking
6444cdc
@rnavyaprabha rnavyaprabha marked this pull request as ready for review July 28, 2025 17:09
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rnavyaprabha commented Jul 28, 2025

@tbaugher-mie @trip-flip Did the code changes, can you please review it now?

@rnavyaprabha rnavyaprabha requested review from horner and removed request for horner July 28, 2025 17:33
@rnavyaprabha rnavyaprabha marked this pull request as draft July 29, 2025 03:08
@rnavyaprabha rnavyaprabha requested a review from horner July 29, 2025 03:08
horner
horner reviewed Jul 29, 2025
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watch these:
https://youtu.be/996OiexHze0

https://youtu.be/yufqeJLP1rI?si=FLFmjgM9XAsFxTCF

AUTHENTICATION_IMPROVEMENTS.md
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@horner horner Jul 29, 2025

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This is slop. You don’t need this since it’s in the code or it should be generated from code. Note: more is not better. Elegance is simplicity.

GOOGLE_OAUTH_SETUP.md
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This is good. If it’s accurate. I saw your video. Is the steps accurate?

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A link to your video would be good.

client/components/auth/authLogic.js
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@horner horner Jul 29, 2025

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This is a lot of code. I think there is a library that does this. Why write from scratch?

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@tbaugher-mie tbaugher-mie Awaiting requested review from tbaugher-mie

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