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jwt implementation api changes #20

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@indraniBan indraniBan commented Dec 10, 2024

πŸ“‹ Description

JIRA ID:

Please provide a summary of the change and the motivation behind it. Include relevant context and details.


βœ… Type of Change

  • 🐞 Bug fix (non-breaking change which resolves an issue)
  • ✨ New feature (non-breaking change which adds functionality)
  • πŸ”₯ Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • πŸ›  Refactor (change that is neither a fix nor a new feature)
  • βš™οΈ Config change (configuration file or build script updates)
  • πŸ“š Documentation (updates to docs or readme)
  • πŸ§ͺ Tests (adding new or updating existing tests)
  • 🎨 UI/UX (changes that affect the user interface)
  • πŸš€ Performance (improves performance)
  • 🧹 Chore (miscellaneous changes that don't modify src or test files)

ℹ️ Additional Information

Please describe how the changes were tested, and include any relevant screenshots, logs, or other information that provides additional context.

Summary by CodeRabbit

Release Notes

  • New Features

    • Added support for JWT authentication with new configuration entries for JWT secrets across multiple environments.
    • Introduced a new User entity for database interactions.
    • Implemented cookie handling utilities for JWT token retrieval.
    • Added a filter for JWT user ID validation.
    • Implemented a utility class for JWT management.
    • Enhanced Redis integration for user data management.
  • Bug Fixes

    • Improved formatting and readability in several service methods.
  • Documentation

    • Updated comments for consistency in dependency management.
  • Tests

    • Removed obsolete test methods and annotations from the beneficiary service tests.

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coderabbitai bot commented Dec 13, 2024

Walkthrough

This pull request introduces a comprehensive JWT (JSON Web Token) authentication and user management system for the application. The changes include adding JWT-related dependencies, configuring Redis for user caching, implementing utility classes for token generation and validation, and creating a filter for JWT token processing. The modifications span across multiple files, introducing new classes for user data, authentication utilities, and configuration components to enhance the application's security and user management capabilities.

Changes

File Change Summary
pom.xml Added JWT-related dependencies: jjwt-api, jjwt-impl, jjwt-jackson; updated comment formatting for existing dependencies.
src/main/environment/*.properties Added jwt.secret configuration entry across different environment files (bengen_ci, bengen_dev, bengen_example, bengen_uat).
src/main/java/com/iemr/common/bengen/data/user/User.java New User entity class with JPA and Lombok annotations.
src/main/java/com/iemr/common/bengen/service/GenerateBeneficiaryService.java Updated to include UserRepository and improved method formatting.
src/main/java/com/iemr/common/bengen/utils/ Added utility classes: CookieUtil, JwtAuthenticationUtil, JwtUserIdValidationFilter, JwtUtil.
src/main/java/com/iemr/common/bengen/config/RedisConfig.java New Redis configuration class for caching and serialization.
src/main/java/com/iemr/common/bengen/BeneficiaryGenApplication.java Added Redis template configuration method.
src/main/java/com/iemr/common/bengen/utils/FilterConfig.java New filter configuration for JWT user ID validation.
src/main/java/com/iemr/common/bengen/repo/UserLoginRepo.java New repository interface for User entity with custom query method.
src/test/java/com/iemr/common/bengen/GenerateBeneficiaryServiceTests.java Removed @RunWith(SpringRunner.class) annotation and contextLoads() method.

Sequence Diagram

sequenceDiagram
    participant Client
    participant JwtUserIdValidationFilter
    participant CookieUtil
    participant JwtAuthenticationUtil
    participant JwtUtil
    participant RedisTemplate

    Client->>JwtUserIdValidationFilter: Send HTTP Request
    JwtUserIdValidationFilter->>CookieUtil: Get JWT Token
    CookieUtil-->>JwtUserIdValidationFilter: Return Token
    JwtUserIdValidationFilter->>JwtAuthenticationUtil: Validate Token
    JwtAuthenticationUtil->>JwtUtil: Validate JWT Token
    JwtUtil-->>JwtAuthenticationUtil: Token Claims
    JwtAuthenticationUtil->>RedisTemplate: Check User in Cache
    RedisTemplate-->>JwtAuthenticationUtil: User Data
    JwtAuthenticationUtil-->>JwtUserIdValidationFilter: Validation Result
    JwtUserIdValidationFilter->>Client: Allow/Deny Request
Loading

Poem

🐰 JWT Rabbit's Rhyme πŸͺ

In cookies and tokens, a security dance,
Validation filters give users their chance.
Redis caches secrets, tokens held tight,
A rabbit's protection, keeping data just right!

Hop, hop, authentication's here! πŸ”

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Actionable comments posted: 13

🧹 Nitpick comments (8)
src/main/java/com/iemr/common/bengen/utils/JwtAuthenticationUtil.java (1)

21-33: Use consistent dependency injection

Currently, cookieUtil and jwtUtil are injected both via field injection (@Autowired on fields) and a constructor.

Choose one injection method for consistency. Prefer constructor injection for mandatory dependencies.

Apply this diff to modify to constructor injection:

-    @Autowired
-    private CookieUtil cookieUtil;
-    @Autowired
-    private JwtUtil jwtUtil;
+    private final CookieUtil cookieUtil;
+    private final JwtUtil jwtUtil;

     private final Logger logger = LoggerFactory.getLogger(this.getClass().getName());

-    @Autowired
     private GenerateBeneficiaryService generateBeneficiaryService;

-    public JwtAuthenticationUtil(CookieUtil cookieUtil, JwtUtil jwtUtil) {
+    @Autowired
+    public JwtAuthenticationUtil(CookieUtil cookieUtil, JwtUtil jwtUtil, GenerateBeneficiaryService generateBeneficiaryService) {
         this.cookieUtil = cookieUtil;
         this.jwtUtil = jwtUtil;
+        this.generateBeneficiaryService = generateBeneficiaryService;
     }
src/main/java/com/iemr/common/bengen/utils/JwtUserIdValidationFilter.java (2)

76-85: Avoid using raw sendError methods and consider proper exception handling

Directly sending error responses from the filter can make error handling inconsistent.

Consider throwing exceptions and configuring an exception handler to manage error responses uniformly.


91-101: Optimize retrieval of JWT token from cookies

The method getJwtTokenFromCookies can be optimized using streams for better readability.

Consider refactoring as:

private String getJwtTokenFromCookies(HttpServletRequest request) {
    if (request.getCookies() != null) {
        return Arrays.stream(request.getCookies())
                .filter(cookie -> "Jwttoken".equals(cookie.getName()))
                .map(Cookie::getValue)
                .findFirst()
                .orElse(null);
    }
    return null;
}
src/main/java/com/iemr/common/bengen/repo/UserRepository.java (1)

9-9: Verify the necessity of custom method findByUserID

The CrudRepository already provides a findById method.

If userID is the primary key, consider using findById instead of creating findByUserID.

src/main/java/com/iemr/common/bengen/utils/CookieUtil.java (1)

15-25: Consider adding cookie validation

The getCookieValue method should validate cookie attributes for security-sensitive cookies.

Add validation:

 public Optional<String> getCookieValue(HttpServletRequest request, String cookieName) {
     Cookie[] cookies = request.getCookies();
     if (cookies != null) {
         for (Cookie cookie : cookies) {
-            if (cookieName.equals(cookie.getName())) {
+            if (cookieName.equals(cookie.getName()) && validateCookie(cookie)) {
                 return Optional.of(cookie.getValue());
             }
         }
     }
     return Optional.empty();
 }

+private boolean validateCookie(Cookie cookie) {
+    // For security-sensitive cookies like JWT
+    if (jwtCookieName.equals(cookie.getName())) {
+        return cookie.getSecure() && cookie.isHttpOnly();
+    }
+    return true;
+}
src/main/java/com/iemr/common/bengen/utils/JwtUtil.java (1)

18-21: Consider making token expiration configurable

The token expiration time is hardcoded to 24 hours. Consider making it configurable through application properties for different environments and use cases.

-	private static final long EXPIRATION_TIME = 24L * 60 * 60 * 1000; // 1 day in milliseconds
+	@Value("${jwt.expiration}")
+	private long EXPIRATION_TIME;
src/main/java/com/iemr/common/bengen/service/GenerateBeneficiaryService.java (1)

196-212: Enhance error handling and add request tracing

The getUserById method has basic error handling but could benefit from:

  1. More specific exception types
  2. Request tracing for better debugging
  3. Validation for negative or zero userId
+@Slf4j
 public class GenerateBeneficiaryService {
+    public User getUserById(Long userId) throws UserNotFoundException {
+        String requestId = UUID.randomUUID().toString();
+        log.debug("Request {} - Fetching user with ID: {}", requestId, userId);
+        
+        if (userId == null || userId <= 0) {
+            throw new IllegalArgumentException("User ID must be a positive number");
+        }
+        
         try {
             User user = userRepository.findByUserID(userId);
             if (user == null) {
-                throw new Exception("User not found with ID: " + userId);
+                throw new UserNotFoundException("User not found with ID: " + userId);
             }
+            log.debug("Request {} - Successfully retrieved user: {}", requestId, userId);
             return user;
         } catch (Exception e) {
-            logger.error("Error fetching user with ID: " + userId, e);
-            throw new Exception("Error fetching user with ID: " + userId, e);
+            log.error("Request {} - Error fetching user with ID: {}", requestId, userId, e);
+            throw new UserServiceException("Error fetching user", e);
         }
     }
pom.xml (1)

342-361: Consider using property for JWT dependency versions

The JWT dependencies share the same version number. Consider using a property to manage the version centrally.

 <properties>
+    <jjwt.version>0.12.6</jjwt.version>
 </properties>

 <dependency>
     <groupId>io.jsonwebtoken</groupId>
     <artifactId>jjwt-api</artifactId>
-    <version>0.12.6</version>
+    <version>${jjwt.version}</version>
 </dependency>
 <dependency>
     <groupId>io.jsonwebtoken</groupId>
     <artifactId>jjwt-impl</artifactId>
-    <version>0.12.6</version>
+    <version>${jjwt.version}</version>
     <scope>runtime</scope>
 </dependency>
 <dependency>
     <groupId>io.jsonwebtoken</groupId>
     <artifactId>jjwt-jackson</artifactId>
-    <version>0.12.6</version>
+    <version>${jjwt.version}</version>
     <scope>runtime</scope>
 </dependency>
πŸ“œ Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

πŸ“₯ Commits

Reviewing files that changed from the base of the PR and between 0d6f938 and 20fa1f5.

πŸ“’ Files selected for processing (14)
  • pom.xml (4 hunks)
  • src/main/environment/bengen_ci.properties (1 hunks)
  • src/main/environment/bengen_dev.properties (1 hunks)
  • src/main/environment/bengen_example.properties (1 hunks)
  • src/main/environment/bengen_uat.properties (1 hunks)
  • src/main/java/com/iemr/common/bengen/data/user/User.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/repo/UserRepository.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/service/GenerateBeneficiaryService.java (2 hunks)
  • src/main/java/com/iemr/common/bengen/utils/CookieUtil.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/utils/FilterConfig.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/utils/JwtAuthenticationUtil.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/utils/JwtUserIdValidationFilter.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/utils/JwtUtil.java (1 hunks)
  • src/test/java/com/iemr/common/bengen/GenerateBeneficiaryServiceTests.java (2 hunks)
βœ… Files skipped from review due to trivial changes (4)
  • src/main/environment/bengen_example.properties
  • src/main/environment/bengen_dev.properties
  • src/test/java/com/iemr/common/bengen/GenerateBeneficiaryServiceTests.java
  • src/main/environment/bengen_uat.properties
πŸ”‡ Additional comments (1)
src/main/java/com/iemr/common/bengen/data/user/User.java (1)

22-23: Clarify the usage of insertable = false on the deleted field

Setting insertable = false means that the deleted field won't be included in SQL INSERT statements.

Ensure that this behavior is intentional.

Run the following script to check for annotations on the deleted field:

βœ… Verification successful

Let me gather more context about the deleted field usage and initialization.


Let me try a different approach to understand the User class and its deleted field usage.


Setting insertable = false on deleted field appears to be a database-driven soft delete pattern

The deleted field configuration in the User entity suggests a common soft delete pattern where:

  1. The database column "Deleted" likely has a DEFAULT value set to false
  2. The field is excluded from INSERT statements (insertable = false)
  3. But can be updated later for soft deletion (updatable = true)

This is a standard and safe implementation for soft delete functionality where:

  • New users are always created with deleted = false through the database default
  • The field can be updated to true when performing soft deletes
  • The JPA entity respects the database default by not including this field in inserts
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Search for the usage of 'deleted' field in entity classes.

rg '@Column.*name\s*=\s*"Deleted"'

Length of output: 158


Script:

#!/bin/bash
# Search for constructor, setter, or any initialization of the deleted field
ast-grep --pattern 'class User {
  $$$
  private Boolean deleted;
  $$$
}'

# Search for any SQL related configurations or default values
rg -B2 -A2 "Deleted.*DEFAULT" 

Length of output: 2530


Script:

#!/bin/bash
# Get the full User class content to understand the context
cat src/main/java/com/iemr/common/bengen/data/user/User.java

# Search for any database schema files or SQL scripts that might define the Deleted column
fd -e sql -x cat {}

Length of output: 684

Comment on lines +35 to +60
public ResponseEntity<String> validateJwtToken(HttpServletRequest request) {
Optional<String> jwtTokenOpt = cookieUtil.getCookieValue(request, "Jwttoken");

if (jwtTokenOpt.isEmpty()) {
return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
.body("Error 401: Unauthorized - JWT Token is not set!");
}

String jwtToken = jwtTokenOpt.get();

// Validate the token
Claims claims = jwtUtil.validateToken(jwtToken);
if (claims == null) {
return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body("Error 401: Unauthorized - Invalid JWT Token!");
}

// Extract username from token
String usernameFromToken = claims.getSubject();
if (usernameFromToken == null || usernameFromToken.isEmpty()) {
return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
.body("Error 401: Unauthorized - Username is missing!");
}

// Return the username if valid
return ResponseEntity.ok(usernameFromToken);
}
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⚠️ Potential issue

Ensure secure handling of JWT tokens and avoid sensitive information leakage

In the validateJwtToken method:

  • Security Concerns:
    • Storing JWT tokens in cookies can expose the application to cross-site scripting (XSS) attacks. Ensure that cookies are marked with HttpOnly and Secure flags to mitigate this risk.
    • Returning detailed error messages like "Error 401: Unauthorized - JWT Token is not set!" can provide useful information to attackers. Consider using generic error messages for clients and logging detailed messages on the server side.

Comment on lines +81 to +83
logger.error("Validation failed: " + e.getMessage(), e);
throw new Exception("Validation error: " + e.getMessage(), e);
}
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πŸ› οΈ Refactor suggestion

Avoid catching and throwing generic Exception

Catching and throwing the generic Exception can obscure the real cause of errors and make debugging difficult.

Refactor to catch specific exceptions and consider creating custom exception classes for better error handling.

Apply this diff to improve exception handling:

-} catch (Exception e) {
+} catch (NumberFormatException e) {
+    logger.error("User ID format is invalid: " + e.getMessage(), e);
+    throw new ValidationException("Invalid User ID format.", e);
+} catch (JwtException e) {
+    logger.error("JWT validation failed: " + e.getMessage(), e);
+    throw new ValidationException("Invalid JWT token.", e);
+} catch (Exception e) {
     logger.error("Validation failed: " + e.getMessage(), e);
-    throw new Exception("Validation error: " + e.getMessage(), e);
+    throw new ValidationException("Validation error: " + e.getMessage(), e);
 }

Ensure that ValidationException is a custom exception that appropriately represents validation errors.

Committable suggestion skipped: line range outside the PR's diff.

Comment on lines 62 to 84
public boolean validateUserIdAndJwtToken(String jwtToken) throws Exception {
try {
// Validate JWT token and extract claims
Claims claims = jwtUtil.validateToken(jwtToken);

if (claims == null) {
throw new Exception("Invalid JWT token.");
}

String userId = claims.get("userId", String.class);

// Fetch user based on userId from the database or cache
User user = generateBeneficiaryService.getUserById(Long.parseLong(userId));
if (user == null) {
throw new Exception("Invalid User ID.");
}

return true; // Valid userId and JWT token
} catch (Exception e) {
logger.error("Validation failed: " + e.getMessage(), e);
throw new Exception("Validation error: " + e.getMessage(), e);
}
}
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⚠️ Potential issue

Handle potential null and format exceptions when parsing userId

In the validateUserIdAndJwtToken method:

  • The userId claim might be missing or not a valid number, leading to a NumberFormatException when parsing.
  • There is no null check for userId before parsing it with Long.parseLong(userId).

Apply this diff to add null checks and handle parsing exceptions:

 public boolean validateUserIdAndJwtToken(String jwtToken) throws Exception {
     try {
         // Validate JWT token and extract claims
         Claims claims = jwtUtil.validateToken(jwtToken);

         if (claims == null) {
             throw new Exception("Invalid JWT token.");
         }

         String userId = claims.get("userId", String.class);

+        if (userId == null || userId.isEmpty()) {
+            throw new Exception("User ID is missing in token.");
+        }

+        Long userIdLong;
+        try {
+            userIdLong = Long.parseLong(userId);
+        } catch (NumberFormatException e) {
+            throw new Exception("Invalid User ID format.");
+        }

         // Fetch user based on userId from the database or cache
-        User user = generateBeneficiaryService.getUserById(Long.parseLong(userId));
+        User user = generateBeneficiaryService.getUserById(userIdLong);

         if (user == null) {
             throw new Exception("Invalid User ID.");
         }

         return true; // Valid userId and JWT token
     } catch (Exception e) {
         logger.error("Validation failed: " + e.getMessage(), e);
         throw new Exception("Validation error: " + e.getMessage(), e);
     }
 }
πŸ“ Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
public boolean validateUserIdAndJwtToken(String jwtToken) throws Exception {
try {
// Validate JWT token and extract claims
Claims claims = jwtUtil.validateToken(jwtToken);
if (claims == null) {
throw new Exception("Invalid JWT token.");
}
String userId = claims.get("userId", String.class);
// Fetch user based on userId from the database or cache
User user = generateBeneficiaryService.getUserById(Long.parseLong(userId));
if (user == null) {
throw new Exception("Invalid User ID.");
}
return true; // Valid userId and JWT token
} catch (Exception e) {
logger.error("Validation failed: " + e.getMessage(), e);
throw new Exception("Validation error: " + e.getMessage(), e);
}
}
public boolean validateUserIdAndJwtToken(String jwtToken) throws Exception {
try {
// Validate JWT token and extract claims
Claims claims = jwtUtil.validateToken(jwtToken);
if (claims == null) {
throw new Exception("Invalid JWT token.");
}
String userId = claims.get("userId", String.class);
if (userId == null || userId.isEmpty()) {
throw new Exception("User ID is missing in token.");
}
Long userIdLong;
try {
userIdLong = Long.parseLong(userId);
} catch (NumberFormatException e) {
throw new Exception("Invalid User ID format.");
}
// Fetch user based on userId from the database or cache
User user = generateBeneficiaryService.getUserById(userIdLong);
if (user == null) {
throw new Exception("Invalid User ID.");
}
return true; // Valid userId and JWT token
} catch (Exception e) {
logger.error("Validation failed: " + e.getMessage(), e);
throw new Exception("Validation error: " + e.getMessage(), e);
}
}

Comment on lines +65 to +74
// Retrieve JWT token from cookies
String jwtTokenFromCookie = getJwtTokenFromCookies(request);
logger.info("JWT token from cookie: ");

// Determine which token (cookie or header) to validate
String jwtToken = jwtTokenFromCookie != null ? jwtTokenFromCookie : jwtTokenFromHeader;
if (jwtToken == null) {
response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "JWT token not found in cookies or headers");
return;
}
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⚠️ Potential issue

Handle missing JWT tokens more securely

When the JWT token is missing, providing detailed error messages may expose sensitive information.

Provide generic error messages and ensure logging is used for detailed information.

Apply this diff to adjust the error handling:

 if (jwtToken == null) {
-    response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "JWT token not found in cookies or headers");
+    response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized access");
     return;
 }
πŸ“ Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
// Retrieve JWT token from cookies
String jwtTokenFromCookie = getJwtTokenFromCookies(request);
logger.info("JWT token from cookie: ");
// Determine which token (cookie or header) to validate
String jwtToken = jwtTokenFromCookie != null ? jwtTokenFromCookie : jwtTokenFromHeader;
if (jwtToken == null) {
response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "JWT token not found in cookies or headers");
return;
}
// Retrieve JWT token from cookies
String jwtTokenFromCookie = getJwtTokenFromCookies(request);
logger.info("JWT token from cookie: ");
// Determine which token (cookie or header) to validate
String jwtToken = jwtTokenFromCookie != null ? jwtTokenFromCookie : jwtTokenFromHeader;
if (jwtToken == null) {
response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized access");
return;
}

[email protected]_GENERATION_API_LOGGING_FILE_NAME@
[email protected]_SECRET_KEY@
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πŸ’‘ Codebase verification

Strengthen JWT secret configuration and validation

Based on the code analysis:

  1. The JWT implementation uses HMAC-SHA256 (HS256) which requires at least a 256-bit (32-byte) secret key
  2. The current properties files have empty JWT secrets (jwt.secret=)
  3. The code has basic validation for null/empty secrets but no length or complexity validation
  4. The secret is directly used as bytes without proper Base64 decoding

Action items:

  • Ensure the JWT_SECRET_KEY environment variable is set with a Base64-encoded random key of at least 32 bytes
  • Update JwtUtil.getSigningKey() to decode the Base64 secret before using it
  • Add validation for minimum secret length and proper Base64 format
  • Configure non-empty secrets in all environment property files
πŸ”— Analysis chain

Ensure JWT secret meets security requirements

While using environment variables for JWT secrets is a good practice, please ensure that:

  1. The secret key is at least 256 bits (32 characters) long
  2. The secret is randomly generated using a cryptographically secure method
  3. Different secrets are used for different environments

Let's verify the JWT secret configuration:


Let me gather more information about the JWT configuration and usage in the codebase.


Let me check the JWT implementation to understand how the secret is being used.


Let me check the token generation implementation to understand how the secret is being used.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for JWT secret configuration across all property files
fd -e properties | xargs grep -l "jwt.secret"

# Verify if the secret is properly configured in other environments
fd -e properties | xargs grep "jwt.secret" 

Length of output: 390


Script:

#!/bin/bash
# Search for JWT token generation/validation code
ast-grep --pattern 'new $_(jwt.secret)' 

# Search for JWT related configuration and usage
rg -l "JWT|jwt" --type java

# Check if there are any default or hardcoded JWT secrets
rg -i "jwt.*secret.*=" --type-add 'props:*.properties' --type props

Length of output: 3126


Script:

#!/bin/bash
# Check JWT implementation
rg -A 10 "class JwtUtil" src/main/java/com/iemr/common/bengen/utils/JwtUtil.java

# Check for secret key usage in JWT related files
rg "getProperty.*jwt.secret" src/main/java/com/iemr/common/bengen/utils/

# Look for JWT token generation
rg "generateToken|createToken" src/main/java/com/iemr/common/bengen/utils/JwtUtil.java

Length of output: 690


Script:

#!/bin/bash
# Check token generation implementation
rg -A 15 "generateToken" src/main/java/com/iemr/common/bengen/utils/JwtUtil.java

# Check for any validation or checks on the secret key
rg -A 10 "getSigningKey" src/main/java/com/iemr/common/bengen/utils/JwtUtil.java

# Look for any secret key validation or configuration in the application startup
rg "SECRET_KEY" src/main/java/com/iemr/common/bengen/utils/

Length of output: 2428

Comment on lines +1 to +31
package com.iemr.common.bengen.utils;

import java.util.Arrays;
import java.util.Optional;

import org.springframework.stereotype.Service;

import jakarta.servlet.http.Cookie;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

@Service
public class CookieUtil {

public Optional<String> getCookieValue(HttpServletRequest request, String cookieName) {
Cookie[] cookies = request.getCookies();
if (cookies != null) {
for (Cookie cookie : cookies) {
if (cookieName.equals(cookie.getName())) {
return Optional.of(cookie.getValue());
}
}
}
return Optional.empty();
}

public String getJwtTokenFromCookie(HttpServletRequest request) {
return Arrays.stream(request.getCookies()).filter(cookie -> "Jwttoken".equals(cookie.getName()))
.map(Cookie::getValue).findFirst().orElse(null);
}
}
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πŸ’‘ Codebase verification

JWT implementation requires security improvements

The verification revealed several security concerns that need to be addressed:

  1. Token validation in JwtUtil.java returns null on validation failure instead of throwing specific exceptions, which could lead to silent failures
  2. No CSRF protection was found in the codebase
  3. JWT token expiration is implemented but error handling for expired tokens needs improvement
  4. The signing key mechanism needs review as it's not visible in the current implementation

Required changes:

  • Implement proper exception handling for JWT validation failures (expired, malformed, invalid signature)
  • Add CSRF protection mechanism
  • Enhance error responses with specific status codes and messages for different token validation scenarios
  • Review and secure the signing key management
πŸ”— Analysis chain

Verify complete JWT implementation security

Please ensure the following security aspects are properly implemented:

  1. JWT token expiration
  2. Token signature verification
  3. CSRF protection
  4. Proper error responses for invalid tokens

Let's verify the JWT implementation:

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for proper JWT validation implementation
ast-grep --pattern 'class $_ implements $_ {
  $$$
  verify($_, $_) {
    $$$
  }
  $$$
}'

# Check for CSRF protection
rg -l "csrf"

# Check for proper error handling
ast-grep --pattern 'try {
  $$$
} catch (JWT$_ $_) {
  $$$
}'

Length of output: 5013


Script:

#!/bin/bash
# Let's try a different approach to find JWT related implementations
rg -l "jwt|JWT" --type java

# Search for token validation patterns
rg "verify|validate.*token" --type java -A 3

# Look for security configurations
fd "SecurityConfig|WebSecurityConfig" --type f --extension java

# Check for token expiration handling
rg "expir|setExpiration" --type java -A 2

Length of output: 7371

Comment on lines +24 to +29
private Key getSigningKey() {
if (SECRET_KEY == null || SECRET_KEY.isEmpty()) {
throw new IllegalStateException("JWT secret key is not set in application.properties");
}
return Keys.hmacShaKeyFor(SECRET_KEY.getBytes());
}
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⚠️ Potential issue

Add validation for minimum secret key length

While the method checks for null/empty secret key, it should also validate the minimum length to ensure adequate security. HMAC-SHA256 requires at least 256 bits (32 bytes) of key material for optimal security.

 private Key getSigningKey() {
 	if (SECRET_KEY == null || SECRET_KEY.isEmpty()) {
 		throw new IllegalStateException("JWT secret key is not set in application.properties");
 	}
+	if (SECRET_KEY.getBytes().length < 32) {
+		throw new IllegalStateException("JWT secret key must be at least 32 bytes long");
+	}
 	return Keys.hmacShaKeyFor(SECRET_KEY.getBytes());
 }
πŸ“ Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
private Key getSigningKey() {
if (SECRET_KEY == null || SECRET_KEY.isEmpty()) {
throw new IllegalStateException("JWT secret key is not set in application.properties");
}
return Keys.hmacShaKeyFor(SECRET_KEY.getBytes());
}
private Key getSigningKey() {
if (SECRET_KEY == null || SECRET_KEY.isEmpty()) {
throw new IllegalStateException("JWT secret key is not set in application.properties");
}
if (SECRET_KEY.getBytes().length < 32) {
throw new IllegalStateException("JWT secret key must be at least 32 bytes long");
}
return Keys.hmacShaKeyFor(SECRET_KEY.getBytes());
}

Comment on lines +43 to +54
public Claims validateToken(String token) {
try {
// Use the JwtParserBuilder correctly in version 0.12.6
return Jwts.parser() // Correct method in 0.12.6 to get JwtParserBuilder
.setSigningKey(getSigningKey()) // Set the signing key
.build() // Build the JwtParser
.parseClaimsJws(token) // Parse and validate the token
.getBody();
} catch (Exception e) {
return null; // Handle token parsing/validation errors
}
}
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⚠️ Potential issue

Improve token validation error handling

The current implementation returns null for all validation failures, making it difficult to handle specific error cases (expired token, invalid signature, etc.). Consider throwing specific exceptions or returning a validation result object.

-public Claims validateToken(String token) {
+public TokenValidationResult validateToken(String token) {
 	try {
-		return Jwts.parser()
+		Claims claims = Jwts.parser()
 			.setSigningKey(getSigningKey())
 			.build()
 			.parseClaimsJws(token)
 			.getBody();
+		return new TokenValidationResult(true, claims, null);
 	} catch (ExpiredJwtException e) {
-		return null;
+		return new TokenValidationResult(false, null, "Token has expired");
 	} catch (SignatureException e) {
+		return new TokenValidationResult(false, null, "Invalid token signature");
 	} catch (Exception e) {
-		return null;
+		return new TokenValidationResult(false, null, "Invalid token: " + e.getMessage());
 	}
 }

Committable suggestion skipped: line range outside the PR's diff.

Comment on lines +56 to +67
public String extractUsername(String token) {
return extractClaim(token, Claims::getSubject);
}

public <T> T extractClaim(String token, Function<Claims, T> claimsResolver) {
final Claims claims = extractAllClaims(token);
return claimsResolver.apply(claims);
}

private Claims extractAllClaims(String token) {
return Jwts.parser().setSigningKey(getSigningKey()).build().parseClaimsJws(token).getBody();
}
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πŸ› οΈ Refactor suggestion

Refactor duplicate code and add input validation

The claim extraction methods contain duplicate code from validateToken and lack input validation. Consider refactoring to reduce duplication and add proper validation.

+private void validateInput(String token) {
+    if (token == null || token.trim().isEmpty()) {
+        throw new IllegalArgumentException("Token cannot be null or empty");
+    }
+}

 public String extractUsername(String token) {
+    validateInput(token);
     return extractClaim(token, Claims::getSubject);
 }

 public <T> T extractClaim(String token, Function<Claims, T> claimsResolver) {
+    validateInput(token);
     final Claims claims = extractAllClaims(token);
     return claimsResolver.apply(claims);
 }

 private Claims extractAllClaims(String token) {
-    return Jwts.parser().setSigningKey(getSigningKey()).build().parseClaimsJws(token).getBody();
+    return validateToken(token).getClaims();
 }

Committable suggestion skipped: line range outside the PR's diff.

Comment on lines +32 to +40
public String generateToken(String username, String userId) {
Date now = new Date();
Date expiryDate = new Date(now.getTime() + EXPIRATION_TIME);

// Include the userId in the JWT claims
return Jwts.builder().setSubject(username).claim("userId", userId) // Add userId as a claim
.setIssuedAt(now).setExpiration(expiryDate).signWith(getSigningKey(), SignatureAlgorithm.HS256)
.compact();
}
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πŸ› οΈ Refactor suggestion

Enhance token with standard JWT claims

Consider adding standard JWT claims to improve token security and manageability:

  • jti (JWT ID) for token uniqueness
  • iss (Issuer) for token origin
  • aud (Audience) for intended recipients
 public String generateToken(String username, String userId) {
 	Date now = new Date();
 	Date expiryDate = new Date(now.getTime() + EXPIRATION_TIME);
+	String tokenId = UUID.randomUUID().toString();
 	
 	return Jwts.builder()
 		.setSubject(username)
 		.claim("userId", userId)
+		.setId(tokenId)
+		.setIssuer("bengen-api")
+		.setAudience("bengen-clients")
 		.setIssuedAt(now)
 		.setExpiration(expiryDate)
 		.signWith(getSigningKey(), SignatureAlgorithm.HS256)
 		.compact();
 }
πŸ“ Committable suggestion

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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
public String generateToken(String username, String userId) {
Date now = new Date();
Date expiryDate = new Date(now.getTime() + EXPIRATION_TIME);
// Include the userId in the JWT claims
return Jwts.builder().setSubject(username).claim("userId", userId) // Add userId as a claim
.setIssuedAt(now).setExpiration(expiryDate).signWith(getSigningKey(), SignatureAlgorithm.HS256)
.compact();
}
public String generateToken(String username, String userId) {
Date now = new Date();
Date expiryDate = new Date(now.getTime() + EXPIRATION_TIME);
String tokenId = UUID.randomUUID().toString();
return Jwts.builder()
.setSubject(username)
.claim("userId", userId)
.setId(tokenId)
.setIssuer("bengen-api")
.setAudience("bengen-clients")
.setIssuedAt(now)
.setExpiration(expiryDate)
.signWith(getSigningKey(), SignatureAlgorithm.HS256)
.compact();
}

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Actionable comments posted: 7

♻️ Duplicate comments (2)
src/main/java/com/iemr/common/bengen/utils/JwtAuthenticationUtil.java (2)

38-63: ⚠️ Potential issue

Enhance security measures for JWT handling

The current implementation has several security concerns:

  1. Detailed error messages could aid attackers in understanding the system
  2. No visible CSRF protection for cookie handling
  3. Cookie security attributes not specified

Apply this diff to implement more secure error handling:

     if (jwtTokenOpt.isEmpty()) {
         return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
-                .body("Error 401: Unauthorized - JWT Token is not set!");
+                .body("Authentication failed");
     }

     String jwtToken = jwtTokenOpt.get();

     // Validate the token
     Claims claims = jwtUtil.validateToken(jwtToken);
     if (claims == null) {
         return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
-                .body("Error 401: Unauthorized - Invalid JWT Token!");
+                .body("Authentication failed");
     }

     // Extract username from token
     String usernameFromToken = claims.getSubject();
     if (usernameFromToken == null || usernameFromToken.isEmpty()) {
         return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
-                .body("Error 401: Unauthorized - Username is missing!");
+                .body("Authentication failed");
     }

Additionally:

  1. Ensure CookieUtil sets appropriate security attributes (HttpOnly, Secure, SameSite)
  2. Implement CSRF protection
  3. Consider adding rate limiting for this endpoint

65-87: ⚠️ Potential issue

Improve validation and exception handling

The current implementation needs several improvements:

  1. Missing null check for userId
  2. Generic exception handling masks specific issues
  3. No token expiration validation

Apply this diff to enhance the implementation:

     public boolean validateUserIdAndJwtToken(String jwtToken) throws Exception {
         try {
+            if (jwtToken == null || jwtToken.trim().isEmpty()) {
+                throw new IllegalArgumentException("JWT token cannot be null or empty");
+            }
+
             // Validate JWT token and extract claims
             Claims claims = jwtUtil.validateToken(jwtToken);

             if (claims == null) {
-                throw new Exception("Invalid JWT token.");
+                throw new JwtValidationException("Invalid JWT token");
             }

             String userId = claims.get("userId", String.class);
+            if (userId == null || userId.trim().isEmpty()) {
+                throw new JwtValidationException("User ID not found in token");
+            }

+            // Validate token expiration
+            if (claims.getExpiration() != null && claims.getExpiration().before(new Date())) {
+                throw new JwtValidationException("Token has expired");
+            }

             // Check if user data is present in Redis
             User user = getUserFromCache(userId);
             if (user == null) {
-                throw new Exception("Invalid User ID.");
+                throw new UserNotFoundException("User not found: " + userId);
             }

             return true; // Valid userId and JWT token
-        } catch (Exception e) {
+        } catch (JwtValidationException | UserNotFoundException e) {
+            throw e;
+        } catch (Exception e) {
             logger.error("Validation failed: " + e.getMessage(), e);
-            throw new Exception("Validation error: " + e.getMessage(), e);
+            throw new AuthenticationException("Authentication failed", e);
         }
     }

Consider creating these custom exceptions:

public class JwtValidationException extends Exception {
    public JwtValidationException(String message) {
        super(message);
    }
}

public class UserNotFoundException extends Exception {
    public UserNotFoundException(String message) {
        super(message);
    }
}

public class AuthenticationException extends Exception {
    public AuthenticationException(String message, Throwable cause) {
        super(message, cause);
    }
}
🧹 Nitpick comments (2)
src/main/java/com/iemr/common/bengen/data/user/User.java (1)

22-23: Standardize column naming convention

Column naming is inconsistent: UserID vs userName. Standardize to either camelCase or snake_case:

-@Column(name = "UserID")
+@Column(name = "user_id")
 private Long userID;

-@Column(name = "userName")
+@Column(name = "user_name")
 private String userName;

Also applies to: 25-26

src/main/java/com/iemr/common/bengen/config/RedisConfig.java (1)

24-37: Configure cache TTL and connection pooling

The Redis template configuration is missing important production-ready settings:

  1. Cache TTL for user sessions
  2. Connection pool configuration
  3. Key prefix strategy
  4. Error handling

Consider adding these configurations:

@Bean
public RedisCacheConfiguration cacheConfiguration() {
    return RedisCacheConfiguration.defaultCacheConfig()
        .entryTtl(Duration.ofMinutes(30))
        .prefixCacheNameWith("bengen:")
        .serializeValuesWith(RedisSerializationContext.SerializationPair
            .fromSerializer(new Jackson2JsonRedisSerializer<>(User.class)));
}

@Bean
public LettuceConnectionFactory redisConnectionFactory() {
    LettucePoolingClientConfiguration poolConfig = LettucePoolingClientConfiguration.builder()
        .poolConfig(new GenericObjectPoolConfig())
        .build();
    
    RedisStandaloneConfiguration serverConfig = new RedisStandaloneConfiguration();
    serverConfig.setPassword("${spring.redis.password}");
    
    return new LettuceConnectionFactory(serverConfig, poolConfig);
}
πŸ“œ Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

πŸ“₯ Commits

Reviewing files that changed from the base of the PR and between 20fa1f5 and a94d3c0.

πŸ“’ Files selected for processing (5)
  • src/main/java/com/iemr/common/bengen/BeneficiaryGenApplication.java (2 hunks)
  • src/main/java/com/iemr/common/bengen/config/RedisConfig.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/data/user/User.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/service/GenerateBeneficiaryService.java (2 hunks)
  • src/main/java/com/iemr/common/bengen/utils/JwtAuthenticationUtil.java (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • src/main/java/com/iemr/common/bengen/service/GenerateBeneficiaryService.java

Comment on lines +19 to +29
public class User implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "UserID")
private Long userID;

@Column(name = "userName")
private String userName;
@Column(name = "Deleted", insertable = false, updatable = true)
private Boolean deleted;

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⚠️ Potential issue

Add essential fields for JWT authentication and security

The User entity is missing crucial fields needed for JWT authentication and security audit. Consider adding:

  1. Password/credentials field (hashed)
  2. Audit fields (createdAt, modifiedAt)
  3. Version field for optimistic locking
  4. Role/permissions for JWT claims

Would you like me to provide a complete implementation with these security enhancements?

Comment on lines +17 to +18
@Data
@JsonIgnoreProperties(ignoreUnknown = true)
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πŸ› οΈ Refactor suggestion

Replace @DaTa with more specific Lombok annotations

Using @Data with JPA entities can lead to issues with equals/hashCode implementations. Consider using more specific annotations:

-@Data
+@Getter
+@Setter
+@ToString(exclude = "deleted")
+@EqualsAndHashCode(of = "userID")
πŸ“ Committable suggestion

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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
@Data
@JsonIgnoreProperties(ignoreUnknown = true)
@Getter
@Setter
@ToString(exclude = "deleted")
@EqualsAndHashCode(of = "userID")
@JsonIgnoreProperties(ignoreUnknown = true)

Comment on lines +19 to +22
@Bean
public ConfigureRedisAction configureRedisAction() {
return ConfigureRedisAction.NO_OP;
}
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πŸ’‘ Codebase verification

⚠️ Potential issue

Redis security configuration needs improvement

The Redis configuration has critical security gaps:

  • Empty password configuration (spring.redis.password=)
  • No SSL/TLS configuration
  • Default port (6379) is exposed
  • Host configuration is commented out

Action items:

  • Configure a strong Redis password
  • Enable SSL/TLS for encrypted communication
  • Consider using a non-default port
  • Ensure host configuration is properly set
πŸ”— Analysis chain

Verify Redis security configuration

Using ConfigureRedisAction.NO_OP bypasses Redis configuration commands. Ensure Redis server is properly secured:

  1. Password authentication
  2. SSL/TLS encryption
  3. Network security

Let's check the content of the application.properties file to verify the Redis security configuration.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if Redis security properties are defined
rg -l "spring\.redis\.(password|ssl|sentinel)" 

Length of output: 90


Script:

#!/bin/bash
# Check Redis configuration in application.properties
rg "spring\.redis\." src/main/resources/application.properties -A 2

Length of output: 255

Comment on lines +57 to +70
@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
RedisTemplate<String, Object> template = new RedisTemplate<>();
template.setConnectionFactory(factory);

// Use StringRedisSerializer for keys (userId)
template.setKeySerializer(new StringRedisSerializer());

// Use Jackson2JsonRedisSerializer for values (Users objects)
Jackson2JsonRedisSerializer<User> serializer = new Jackson2JsonRedisSerializer<>(User.class);
template.setValueSerializer(serializer);

return template;
}
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⚠️ Potential issue

Remove redundant Redis configuration

This Redis template configuration duplicates the one in RedisConfig.java with inconsistent types:

  1. RedisTemplate<String, Object> vs RedisTemplate<String, User>
  2. Same serialization setup in both places

Remove this redundant configuration and use the one from RedisConfig.java to maintain a single source of truth.

Comment on lines +66 to +67
Jackson2JsonRedisSerializer<User> serializer = new Jackson2JsonRedisSerializer<>(User.class);
template.setValueSerializer(serializer);
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⚠️ Potential issue

Fix type mismatch in serializer configuration

The serializer is configured for User class but the template is for Object:

-Jackson2JsonRedisSerializer<User> serializer = new Jackson2JsonRedisSerializer<>(User.class);
-template.setValueSerializer(serializer);
+template.setValueSerializer(new Jackson2JsonRedisSerializer<>(Object.class));

Or better yet, remove this configuration and use the properly typed one from RedisConfig.java.

πŸ“ Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
Jackson2JsonRedisSerializer<User> serializer = new Jackson2JsonRedisSerializer<>(User.class);
template.setValueSerializer(serializer);
template.setValueSerializer(new Jackson2JsonRedisSerializer<>(Object.class));

Comment on lines 22 to 36
@Autowired
private CookieUtil cookieUtil;
@Autowired
private JwtUtil jwtUtil;
@Autowired
private RedisTemplate<String, Object> redisTemplate;
private final Logger logger = LoggerFactory.getLogger(this.getClass().getName());

@Autowired
private GenerateBeneficiaryService generateBeneficiaryService;

public JwtAuthenticationUtil(CookieUtil cookieUtil, JwtUtil jwtUtil) {
this.cookieUtil = cookieUtil;
this.jwtUtil = jwtUtil;
}
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πŸ› οΈ Refactor suggestion

Standardize dependency injection pattern

The class mixes constructor injection with field injection, which could lead to initialization issues. Consider using constructor injection consistently for all dependencies.

Apply this diff to standardize the injection pattern:

-    @Autowired
-    private CookieUtil cookieUtil;
-    @Autowired
-    private JwtUtil jwtUtil;
-    @Autowired
-    private RedisTemplate<String, Object> redisTemplate;
     private final Logger logger = LoggerFactory.getLogger(this.getClass().getName());
-    @Autowired
-    private GenerateBeneficiaryService generateBeneficiaryService;

-    public JwtAuthenticationUtil(CookieUtil cookieUtil, JwtUtil jwtUtil) {
+    public JwtAuthenticationUtil(
+            CookieUtil cookieUtil,
+            JwtUtil jwtUtil,
+            RedisTemplate<String, Object> redisTemplate,
+            GenerateBeneficiaryService generateBeneficiaryService) {
         this.cookieUtil = cookieUtil;
         this.jwtUtil = jwtUtil;
+        this.redisTemplate = redisTemplate;
+        this.generateBeneficiaryService = generateBeneficiaryService;
     }
πŸ“ Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
@Autowired
private CookieUtil cookieUtil;
@Autowired
private JwtUtil jwtUtil;
@Autowired
private RedisTemplate<String, Object> redisTemplate;
private final Logger logger = LoggerFactory.getLogger(this.getClass().getName());
@Autowired
private GenerateBeneficiaryService generateBeneficiaryService;
public JwtAuthenticationUtil(CookieUtil cookieUtil, JwtUtil jwtUtil) {
this.cookieUtil = cookieUtil;
this.jwtUtil = jwtUtil;
}
private CookieUtil cookieUtil;
private JwtUtil jwtUtil;
private RedisTemplate<String, Object> redisTemplate;
private final Logger logger = LoggerFactory.getLogger(this.getClass().getName());
private GenerateBeneficiaryService generateBeneficiaryService;
public JwtAuthenticationUtil(
CookieUtil cookieUtil,
JwtUtil jwtUtil,
RedisTemplate<String, Object> redisTemplate,
GenerateBeneficiaryService generateBeneficiaryService) {
this.cookieUtil = cookieUtil;
this.jwtUtil = jwtUtil;
this.redisTemplate = redisTemplate;
this.generateBeneficiaryService = generateBeneficiaryService;
}

Comment on lines +89 to +100
private User getUserFromCache(String userId) {
String redisKey = "user_" + userId; // The Redis key format
User user = (User) redisTemplate.opsForValue().get(redisKey);

if (user == null) {
logger.warn("User not found in Redis. Will try to fetch from DB.");
} else {
logger.info("User fetched successfully from Redis.");
}

return user; // Returns null if not found
}
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πŸ› οΈ Refactor suggestion

Enhance Redis cache implementation

The current cache implementation has several areas for improvement:

  1. Direct string concatenation for Redis keys
  2. No namespace/prefix strategy for multi-tenant scenarios
  3. Unchecked cast when retrieving from Redis

Apply this diff to improve the implementation:

+    private static final String USER_CACHE_PREFIX = "bengen:user:";
+
     private User getUserFromCache(String userId) {
-        String redisKey = "user_" + userId; // The Redis key format
-        User user = (User) redisTemplate.opsForValue().get(redisKey);
+        String redisKey = USER_CACHE_PREFIX + userId;
+        Object cachedValue = redisTemplate.opsForValue().get(redisKey);
+
+        User user = null;
+        if (cachedValue instanceof User) {
+            user = (User) cachedValue;
+        } else if (cachedValue != null) {
+            logger.error("Cached value is not of type User: {}", cachedValue.getClass());
+        }

         if (user == null) {
-            logger.warn("User not found in Redis. Will try to fetch from DB.");
+            logger.debug("Cache miss for user: {}", userId);
         } else {
-            logger.info("User fetched successfully from Redis.");
+            logger.debug("Cache hit for user: {}", userId);
         }

         return user;
     }

Consider also:

  1. Adding TTL (Time-To-Live) for cached users
  2. Implementing cache update/invalidation strategy
  3. Adding metrics for cache hit/miss rates
πŸ“ Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
private User getUserFromCache(String userId) {
String redisKey = "user_" + userId; // The Redis key format
User user = (User) redisTemplate.opsForValue().get(redisKey);
if (user == null) {
logger.warn("User not found in Redis. Will try to fetch from DB.");
} else {
logger.info("User fetched successfully from Redis.");
}
return user; // Returns null if not found
}
private static final String USER_CACHE_PREFIX = "bengen:user:";
private User getUserFromCache(String userId) {
String redisKey = USER_CACHE_PREFIX + userId;
Object cachedValue = redisTemplate.opsForValue().get(redisKey);
User user = null;
if (cachedValue instanceof User) {
user = (User) cachedValue;
} else if (cachedValue != null) {
logger.error("Cached value is not of type User: {}", cachedValue.getClass());
}
if (user == null) {
logger.debug("Cache miss for user: {}", userId);
} else {
logger.debug("Cache hit for user: {}", userId);
}
return user;
}

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Actionable comments posted: 0

🧹 Nitpick comments (4)
src/main/java/com/iemr/common/bengen/utils/JwtAuthenticationUtil.java (4)

24-32: Consider using constructor injection for all dependencies.

Lines 24-35 mix field injection (@Autowired) with partial constructor injection in lines 37-40. This can lead to inconsistencies and potential initialization problems.

-@Autowired
-private CookieUtil cookieUtil;
-@Autowired
-private JwtUtil jwtUtil;
-@Autowired
-private RedisTemplate<String, Object> redisTemplate;
-@Autowired
-private UserLoginRepo userLoginRepo;
-@Autowired
-private GenerateBeneficiaryService generateBeneficiaryService;

+private final CookieUtil cookieUtil;
+private final JwtUtil jwtUtil;
+private final RedisTemplate<String, Object> redisTemplate;
+private final UserLoginRepo userLoginRepo;
+private final GenerateBeneficiaryService generateBeneficiaryService;

@Autowired
public JwtAuthenticationUtil(CookieUtil cookieUtil, 
                             JwtUtil jwtUtil,
                             RedisTemplate<String, Object> redisTemplate,
                             UserLoginRepo userLoginRepo,
                             GenerateBeneficiaryService generateBeneficiaryService) {
    this.cookieUtil = cookieUtil;
    this.jwtUtil = jwtUtil;
    this.redisTemplate = redisTemplate;
    this.userLoginRepo = userLoginRepo;
    this.generateBeneficiaryService = generateBeneficiaryService;
}

37-40: Remove redundant constructor or unify approach.

Because you have field injection as well, the explicit constructor lines 37-40 become redundant or confusing. Decide whether to remove the constructor or unify everything into constructor-based injection.


42-67: Limit detailed error messages to avoid leaking system information.

Returning messages like β€œError 401: Unauthorized - JWT Token is not set!” can reveal internal logic for potential attackers. Consider responding with a generic error message and log the details server-side.


97-105: Add a namespace prefix for Redis keys to support multi-environment or multi-tenant usage.

Line 98 uses user_ as a prefix. For improved maintainability, consider adding environment, application, or domain-based prefixes (e.g., bengen:user:) to avoid collisions.

πŸ“œ Review details

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Review profile: CHILL
Plan: Pro

πŸ“₯ Commits

Reviewing files that changed from the base of the PR and between a94d3c0 and e9a28b8.

πŸ“’ Files selected for processing (2)
  • src/main/java/com/iemr/common/bengen/repo/UserLoginRepo.java (1 hunks)
  • src/main/java/com/iemr/common/bengen/utils/JwtAuthenticationUtil.java (1 hunks)
πŸ”‡ Additional comments (4)
src/main/java/com/iemr/common/bengen/repo/UserLoginRepo.java (2)

1-1: Use consistent package naming conventions and structure.

The package name com.iemr.common.bengen.repo seems sufficiently descriptive for a repository layer. However, ensure consistency with other packages in the application to maintain a coherent structure (e.g., repository vs repo, service vs services).


13-14: Verify null and invalid input handling in custom query methods.

Although the query checks u.deleted = false, consider how the application should handle scenarios where userID is null or invalid. Ensure that calling this method with an invalid ID does not throw unchecked exceptions.

src/main/java/com/iemr/common/bengen/utils/JwtAuthenticationUtil.java (2)

69-95: Avoid catching and rethrowing generic Exception.

This repeats a prior reviewer comment about obscuring the root cause. Use more specific exceptions (e.g., NumberFormatException, JwtException), or define a custom domain-specific exception to differentiate JWT issues from unexpected runtime errors.


110-128: ⚠️ Potential issue

Handle potential exceptions for invalid userId more gracefully.

Line 115 calls Long.parseLong(userId) which can throw NumberFormatException. Ensure you handle invalid string inputs or null values before parsing. This helps avoid runtime exceptions.

+ if (userId == null || userId.trim().isEmpty()) {
+     logger.error("User ID is missing or empty.");
+     return null;
+ }
+ 
Long userIdLong;
try {
    userIdLong = Long.parseLong(userId);
} catch (NumberFormatException e) {
    logger.error("Invalid User ID format for: " + userId, e);
    return null;
}
User user = userLoginRepo.getUserByUserID(userIdLong);

Likely invalid or redundant comment.

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