Fix authentication and access control vulnerabilities

[lucasging]

Summary

This pull request addresses multiple security vulnerabilities identified in the frontend/app/api/analyze/stream/route.ts file.

Vulnerabilities Fixed

1. Missing Authentication Checks: Added authentication middleware to ensure that all requests are authenticated before processing.
2. Broken Access Control: Implemented access control checks to verify user permissions before allowing operations on GitHub repositories.
3. Credential Handling Issues: Improved handling of GitHub tokens by adding validation and ensuring secure storage.

Detailed Changes

• Added authenticateRequest function to enforce authentication checks at the beginning of the request handling.
• Introduced isValidToken and isValidGithubToken functions to validate tokens and ensure they meet security standards.
• Modified the POST function to include authentication and token validation logic.

Testing

• Tested the authentication flow to ensure unauthorized requests are rejected.
• Verified that valid requests with proper tokens are processed correctly.

Notes

• Ensure that the token validation logic is properly implemented according to your security requirements.

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Project	Deployment	Review	Updated (UTC)
trojan	Error		Jan 18, 2026 5:19pm