code-update-quality

[vlussenburg]

✨ PR Description

Purpose: This PR enhances the order placement process by adding date tracking and improving error handling.

Main changes:

• Added date field to charge requests and responses
• Implemented error logging in Java service
• Removed 'admin' user from authentication database

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This PR affects one or more sensitive files and requires review from the security team.

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✨ PR Review

General Feedback

This PR makes several updates across the codebase including adding error logging, introducing date tracking for orders, and modifying authentication. While some improvements are good (better response data in BillingController), there are several issues that need attention, particularly authentication problems and data field naming inconsistencies between services.

File: frontend/public/app.js
Bug - Authentication Token Format

Details

Problem: Authentication Token Format - The Authorization header is missing a space between "Bearer" and the token value, which will cause authentication to fail as the server expects a specific format.
Fix: Add a space between "Bearer" and the token variable in the Authorization header
Why: The JWT Bearer token format requires a space after "Bearer" which is missing in the current implementation

async function placeOrder() { method: "POST", headers: { "Content-Type": "application/json", - "Authorization": "Bearer" + token + "Authorization": "Bearer " + token }, body: JSON.stringify({ productId, quantity }), });

File: services/orders-java/src/main/java/com/example/orders/controller/OrderController.java
Bug - Field Name Mismatch

Details

Problem: Field Name Mismatch - The date field has inconsistent naming between services - "dats" in OrderController but "date" in BillingController, which will prevent proper date tracking.
Fix: Rename the date field to be consistent between services using "date" instead of "dats"
Why: The field name mismatch between order and billing services will cause the date information to be lost during processing

public class OrderController { payload.put("username", username); payload.put("productId", productId); payload.put("quantity", quantity); - payload.put("dats", Instant.now().toString()); + payload.put("date", Instant.now().toString());

File: services/billing-csharp/Controllers/BillingController.cs
Security - Unbounded Memory Growth

Details

Problem: Unbounded Memory Growth - The new static responseHistory list accumulates all responses without any size limits or cleanup mechanism, which could lead to memory leaks in a production environment.
Fix: Add a size limit to the responseHistory list and implement a mechanism to remove older entries when the limit is reached
Why: The unbounded collection can grow indefinitely causing memory issues in long-running applications

public class BillingController : ControllerBase { - private static readonly List<object> responseHistory = new List<object>(); + private static readonly List<object> responseHistory = new List<object>(100); // Limit to last 100 transactions private readonly string EXPECTED_SECRET = Environment.GetEnvironmentVariable("BILLING_SECRET"); [HttpPost("charge")]

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🥷 Code experts: cghyzel, amitmohleji

cghyzel, amitmohleji have most 👩‍💻 activity in the files.
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frontend/public/app.js

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frontend/public/index.html

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services/auth-python/app/auth.py

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services/billing-csharp/Controllers/BillingController.cs

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services/orders-java/src/main/java/com/example/orders/controller/OrderController.java

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✨ PR Review

General Feedback

The PR includes several updates across multiple services but introduces a few critical issues. There's an authentication token format error in the frontend, a typo in the JSON field name between Java and C# services, and potentially sensitive information being exposed through unconstrained exception printing. While the code adds some helpful features like timestamp tracking and response history, these issues need addressing before approval.

File: frontend/public/app.js
Bug - Authentication Error

Details

Problem: Authentication Error - The Authorization header is missing a space between "Bearer" and the token value, which will cause authentication failures as the server won't be able to parse the token correctly.
Fix: Add a space between "Bearer" and the token variable
Why: The Bearer authentication scheme requires a space between the word "Bearer" and the token value according to the OAuth 2.0 specification

async function placeOrder() { method: "POST", headers: { "Content-Type": "application/json", - "Authorization": "Bearer" + token + "Authorization": "Bearer " + token }, body: JSON.stringify({ productId, quantity }), });

File: services/orders-java/src/main/java/com/example/orders/controller/OrderController.java
Bug - Field Name Mismatch

Details

Problem: Field Name Mismatch - The Java service sends a JSON field named "dats" but the C# service expects "date", causing a field mismatch that will prevent proper date/time recording.
Fix: Correct the field name to "date" in the OrderController.java file
Why: The Java code uses "dats" as the key while the C# controller expects "date", causing a contract mismatch between services

public class OrderController { JSONObject payload = new JSONObject(); payload.put("username", username); payload.put("productId", productId); payload.put("quantity", quantity); - payload.put("dats", Instant.now().toString()); + payload.put("date", Instant.now().toString()); HttpEntity<String> entity = new HttpEntity<>(payload.toString(), headers); try {

File: services/orders-java/src/main/java/com/example/orders/controller/OrderController.java
Security - Exposed Exceptions

Details

Problem: Exposed Exceptions - Exception stack traces are being printed to the standard output, which could leak sensitive information in production environments.
Fix: Replace printStackTrace with proper logging that handles sensitive information appropriately
Why: Using e.printStackTrace() exposes potentially sensitive information about the application structure and may reveal details useful for attackers

public class OrderController { String body = authResponse.getBody(); return body.contains("username") ? body.split(":")[1].replaceAll("[\"{} ]", "") : null; } catch (Exception e) { - e.printStackTrace(); + // Use proper logging instead: logger.error("Auth service error", e); return null; } }

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Please add a Jira ticket reference to the title or description of this PR.

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Hello vlussenburg 👋 Thanks for making your first PR, and welcome to our project!
Our mentor team has automatically been assigned to review this PR and guide you through the process.
Please reach out to that team if you have questions about the next steps.

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🥷 Code experts: cghyzel, amitmohleji

cghyzel, amitmohleji have most 👩‍💻 activity in the files.
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frontend/public/app.js

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	cghyzel	amitmohleji
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frontend/public/index.html

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services/auth-python/app/auth.py

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services/billing-csharp/Controllers/BillingController.cs

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services/orders-java/src/main/java/com/example/orders/controller/OrderController.java

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	cghyzel	amitmohleji
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cghyzel: 100%

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