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@arvi18 arvi18 commented Jul 14, 2025

Summary by CodeRabbit

  • Chores
    • Updated cross-origin request (CORS) settings to restrict allowed origins for improved security.

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coderabbitai bot commented Jul 14, 2025

Walkthrough

The change updates the CORS middleware configuration in the FastAPI application by replacing the wildcard origin setting with a single allowed origin: "https://bubblesort.vercel.com". Other CORS settings remain unchanged, and no other application logic is modified.

Changes

File(s) Change Summary
app/main.py Updated CORS middleware to allow only "https://bubblesort.vercel.com" origin instead of wildcard.

Poem

🐇 A bubble pops, the hops refine,
From wild to one, a single line.
Origins trimmed, secure and neat,
The CORS gate guards the front seat.
A rabbit’s joy in code’s new tune,
Safe fields beneath the crescent moon! 🌙✨


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Summary of Changes

Hello @arvi18, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

I've reviewed this pull request and it primarily focuses on adjusting the application's core configuration by removing the explicit Cross-Origin Resource Sharing (CORS) middleware setup. This change suggests that CORS handling might be managed at a different layer of the application's deployment or is no longer required for the current setup. Additionally, a minor formatting adjustment was made to ensure proper file termination.

Highlights

  • CORS Middleware Removal: I observed the removal of the CORSMiddleware configuration from the FastAPI application in app/main.py. This means the application will no longer explicitly handle Cross-Origin Resource Sharing at the application level, potentially indicating that CORS is now managed at a different layer (e.g., API Gateway, reverse proxy) or is no longer required for the current deployment strategy.
  • File Formatting: I noted a minor formatting change where a missing newline character was added at the end of the app/main.py file, addressing a common linting or style preference.
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Actionable comments posted: 0

🔭 Outside diff range comments (1)
app/main.py (1)

9-13: Update CORS Documentation and Confirm Middleware Removal

The README still references CORS support and configuration even though the middleware was removed. Please:

  • Remove or update the “CORS Configuration” section in README.md
  • Verify that no frontend apps on different origins consume these /auth/* or /protected endpoints
  • If cross-origin access is required, reintroduce CORS middleware with a restrictive allow_origins list rather than dropping it entirely

Files to update:

  • README.md (remove CORS section or adjust guidance)
🧹 Nitpick comments (1)
app/main.py (1)

2-2: Remove unused import.

The CORSMiddleware import is no longer used after removing the CORS configuration.

-from fastapi.middleware.cors import CORSMiddleware
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Code Review

This pull request removes the CORS middleware configuration from main.py. This is a critical breaking change that could prevent frontend applications hosted on different domains from accessing the API. My review highlights this issue and recommends re-evaluating the removal of this middleware.

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arvi18 commented Jul 14, 2025

/refacto-test

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refacto-test bot commented Jul 14, 2025

Refacto is reviewing this PR. Please wait for the review comments to be posted.

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arvi18 commented Jul 15, 2025

/refacto-test

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refacto-test bot commented Jul 15, 2025

PR already reviewed at the latest commit: d268a78.
Please try again with new changes.

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arvi18 commented Jul 15, 2025

/refacto-test

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app = FastAPI(
title="Authentication API",
description="A FastAPI application with Firebase authentication",
version="1.0.0"
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Security Improvement: While replacing the wildcard CORS origin with a specific domain is a good security improvement, hardcoding the frontend URL (https://bubblesort.vercel.com) limits deployment flexibility. Consider using environment variables instead:

origins = os.getenv('ALLOWED_ORIGINS', 'https://bubblesort.vercel.com').split(',')

This would allow for different frontend URLs across environments without code changes.

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visz11 commented Jul 15, 2025

/refacto-test

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Refacto is reviewing this PR. Please wait for the review comments to be posted.

)

# Add CORS middleware
# CORS setup
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Security Improvement: The PR correctly replaces the permissive CORS wildcard origin (["*"]) with a specific origin. However, the URL https://bubblesort.vercel.com appears to be a placeholder based on the comment. Please verify this is the correct production frontend URL before merging.

)

# Add CORS middleware
# CORS setup
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Configuration Management: Consider moving the CORS origins list to environment variables or a configuration file instead of hardcoding it. This would make it easier to update in different environments without code changes.

]

app.add_middleware(
CORSMiddleware,
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Documentation Issue: The comment suggests using ["*"] for all origins while noting it's not recommended for production. Since this PR is specifically implementing the security best practice of restricting origins, consider removing this comment to avoid confusion for future developers.

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visz11 commented Jul 15, 2025

/refacto-test

@arvi18 arvi18 closed this Jul 24, 2025
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