create jwt authentication

[raphaelbn]

7

[raphaelbn]

@CodiumAI-Agent /review

[CodiumAI-Agent]

PR Analysis

• 🎯 Main theme: Implementing JWT authentication

• 📝 PR summary: This PR introduces JWT authentication to the project. It includes the creation of a new 'user' app with a custom User model, JWT authentication, and sign-up and sign-in endpoints. The JWT secret is retrieved from environment variables with a default fallback.

• 📌 Type of PR: Enhancement

• 🧪 Relevant tests added: No

• ⏱️ Estimated effort to review [1-5]: 4, because the PR introduces significant new functionality and changes to the project structure, which requires a thorough review.

• 🔒 Security concerns: Yes, because the JWT secret has a default fallback value, which could lead to security issues if the environment variable is not set.

  PR Feedback

• 💡 General suggestions: The PR is generally well-structured and follows good practices. However, it's recommended to add tests to ensure the new functionality works as expected. Also, consider handling exceptions and errors more gracefully, providing more informative messages to the end user.

• 🤖 Code feedback:

  - **relevant file:** ``user/authentication.py`` **suggestion:** Consider handling the case where the JWT token is not formatted as expected more gracefully. Right now, if the token does not contain a space, the code will raise an IndexError. This could be handled more elegantly to provide a more informative error message to the user. [important] **relevant line:** [access_token = auth.split(' ')[1]](https://github.com/templokamisama/condominium_manager_server/pull/13/files#diff-c6e3cc239718f79ee7f0d9324620fbd90841f3e7dff0cfe763957aa979609abbR16) - **relevant file:** ``user/views.py`` **suggestion:** It's recommended to validate the request data before using it. Currently, the code assumes that 'username' and 'password' will always be present in the request data, which might not be the case. This could lead to KeyError exceptions. [important] **relevant line:** [user = User.objects.filter(username=request.data['username'])](https://github.com/templokamisama/condominium_manager_server/pull/13/files#diff-766d81bd31b085813d7dd0f8e43f3278bb2f7cd8c5900ab4b9838b64d813ad31R22) - **relevant file:** ``condominium_manager_server/settings.py`` **suggestion:** It's not a good practice to have a default fallback for the JWT secret. If the environment variable is not set, the application should not start, as this could lead to security issues. [important] **relevant line:** [SECRET_JWT = os.environ.get('SECRET_JWT', 'secret_for_jwt')](https://github.com/templokamisama/condominium_manager_server/pull/13/files#diff-1561d3ac9e4e997b6163a44378de7a9d9f4f996f18eeb8ab055346bdaca29627R31) - **relevant file:** ``user/views.py`` **suggestion:** The 'sign_in' method could return more informative error messages. Right now, it only returns 'user not found' or 'wrong password', which are not very descriptive. [medium] **relevant line:** [if not user.exists:](https://github.com/templokamisama/condominium_manager_server/pull/13/files#diff-766d81bd31b085813d7dd0f8e43f3278bb2f7cd8c5900ab4b9838b64d813ad31R24)

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[raphaelbn]

@CodiumAI-Agent /improve