Demo Quality Kit #242
Demo Quality Kit #242
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This PR affects one or more sensitive files and requires review from the security team. |
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🥷 Code experts: amitmohleji, b-sims amitmohleji, b-sims have most 👩💻 activity in the files. See details
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✨ PR Review
The PR introduces database persistence, order history functionality, and improved UI. The changes are generally well-structured but contain several significant issues that need attention.
3 issues detected:
🐞 Bug - Concurrent file access without synchronization can corrupt billing data
Details: The file I/O operations for storing billing data are not thread-safe. When multiple concurrent requests access the same user file, it can lead to data corruption or loss of billing records.
File:services/billing-csharp/Controllers/BillingController.cs (56-72)🔒 Security - Stack traces containing sensitive information are exposed through console output
Details: Database exceptions are printed to console via printStackTrace(), which can expose sensitive information like database connection details, internal system structure, and potentially user data in production environments.
File:services/orders-java/src/main/java/com/example/orders/controller/OrderController.java (75-75)🧹 Maintainability - Controller handles both HTTP requests and direct database operations
Details: The controller class is handling database operations directly, violating separation of concerns. This makes the code harder to test, maintain, and scale as business logic is tightly coupled with the web layer.
File:services/orders-java/src/main/java/com/example/orders/controller/OrderController.java (65-73)
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| private async Task QueueForBillingSystemAsync(string username, object payload) | ||
| { | ||
| Directory.CreateDirectory(StorageDirectory); | ||
| var filePath = Path.Combine(StorageDirectory, $"{username}.json"); | ||
| List<object> payloads = new(); | ||
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| if (System.IO.File.Exists(filePath)) | ||
| { | ||
| try | ||
| { | ||
| payloads = JsonSerializer.Deserialize<List<object>>(await System.IO.File.ReadAllTextAsync(filePath)) ?? new(); | ||
| } | ||
| catch { } | ||
| } | ||
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| payloads.Add(payload); | ||
| await System.IO.File.WriteAllTextAsync(filePath, JsonSerializer.Serialize(payloads, new JsonSerializerOptions { WriteIndented = true })); |
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🐞 Bug - Race Condition: Implement proper locking mechanism using SemaphoreSlim or similar synchronization primitive around the file read/write operations in QueueForBillingSystemAsync method.
| private async Task QueueForBillingSystemAsync(string username, object payload) | |
| { | |
| Directory.CreateDirectory(StorageDirectory); | |
| var filePath = Path.Combine(StorageDirectory, $"{username}.json"); | |
| List<object> payloads = new(); | |
| if (System.IO.File.Exists(filePath)) | |
| { | |
| try | |
| { | |
| payloads = JsonSerializer.Deserialize<List<object>>(await System.IO.File.ReadAllTextAsync(filePath)) ?? new(); | |
| } | |
| catch { } | |
| } | |
| payloads.Add(payload); | |
| await System.IO.File.WriteAllTextAsync(filePath, JsonSerializer.Serialize(payloads, new JsonSerializerOptions { WriteIndented = true })); | |
| private static readonly SemaphoreSlim _fileSemaphore = new SemaphoreSlim(1, 1); | |
| private async Task QueueForBillingSystemAsync(string username, object payload) | |
| { | |
| Directory.CreateDirectory(StorageDirectory); | |
| var filePath = Path.Combine(StorageDirectory, $"{username}.json"); | |
| List<object> payloads = new(); | |
| await _fileSemaphore.WaitAsync(); | |
| try | |
| { | |
| if (System.IO.File.Exists(filePath)) | |
| { | |
| try | |
| { | |
| payloads = JsonSerializer.Deserialize<List<object>>(await System.IO.File.ReadAllTextAsync(filePath)) ?? new(); | |
| } | |
| catch { } | |
| } | |
| payloads.Add(payload); | |
| await System.IO.File.WriteAllTextAsync(filePath, JsonSerializer.Serialize(payloads, new JsonSerializerOptions { WriteIndented = true })); | |
| } | |
| finally | |
| { | |
| _fileSemaphore.Release(); | |
| } |
| pstmt.setString(5, timestamp); | ||
| pstmt.executeUpdate(); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); |
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🔒 Security - Information Disclosure: Replace printStackTrace() calls with proper logging that sanitizes sensitive information and use generic error messages for client responses.
| e.printStackTrace(); | |
| logger.error("Failed to store order", e); |
| try (java.sql.Connection conn = dataSource.getConnection(); | ||
| java.sql.PreparedStatement pstmt = conn.prepareStatement( | ||
| "INSERT INTO orders (orderId, username, productId, quantity, timestamp) VALUES (?, ?, ?, ?, ?)")) { | ||
| pstmt.setString(1, orderId); | ||
| pstmt.setString(2, username); | ||
| pstmt.setString(3, request.productId); | ||
| pstmt.setInt(4, request.quantity); | ||
| pstmt.setString(5, timestamp); | ||
| pstmt.executeUpdate(); |
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🧹 Maintainability - Mixed Responsibilities: Extract database operations into a separate service or repository class, and inject it into the controller. This will improve testability and maintainability.
| try (java.sql.Connection conn = dataSource.getConnection(); | |
| java.sql.PreparedStatement pstmt = conn.prepareStatement( | |
| "INSERT INTO orders (orderId, username, productId, quantity, timestamp) VALUES (?, ?, ?, ?, ?)")) { | |
| pstmt.setString(1, orderId); | |
| pstmt.setString(2, username); | |
| pstmt.setString(3, request.productId); | |
| pstmt.setInt(4, request.quantity); | |
| pstmt.setString(5, timestamp); | |
| pstmt.executeUpdate(); | |
| Order order = new Order(orderId, username, request.productId, request.quantity, timestamp); | |
| try { | |
| orderService.saveOrder(order); |
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This PR is missing a Jira ticket reference in the title or description. |
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Hello vlussenburg 👋 Thanks for making your first PR, and welcome to our project! |
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🥷 Code experts: amitmohleji, b-sims amitmohleji, b-sims have most 👩💻 activity in the files. See details
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✨ PR Description
Purpose: Add order history functionality to the e-commerce microservice architecture with enhanced frontend UI and Swagger API documentation.
Main changes:
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