hibernate-user-service-hw #908
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[CODE: 4]
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src/main/java/mate/academy/dao/UserDao.javasrc/main/java/mate/academy/dao/impl/UserDaoImpl.javasrc/main/java/mate/academy/exception/AuthenticationException.javasrc/main/java/mate/academy/exception/RegistrationException.javasrc/main/java/mate/academy/model/User.javasrc/main/java/mate/academy/service/AuthenticationService.javasrc/main/java/mate/academy/service/UserService.javasrc/main/java/mate/academy/service/impl/AuthenticationServiceImpl.javasrc/main/java/mate/academy/service/impl/UserServiceImpl.javasrc/main/java/mate/academy/util/HashUtil.javasrc/main/resources/hibernate.cfg.xml
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There are a few critical issues that need to be addressed before the Pull Request can be approved.
-
Unique Email Constraint: Ensure that the email field in the
Usermodel is unique to prevent duplicate entries in the database. -
Salt and Password Hashing: Implement proper handling of salt and password hashing in the
UserServiceImplclass to ensure secure storage and validation of passwords. -
loginMethod Logic: Modify theloginmethod inAuthenticationServiceImplto return the authenticated user object instead ofnullupon successful authentication. -
Password Handling in
toString: Remove or mask the password in thetoStringmethod of theUserclass to prevent security risks. -
Salt Handling in
HashUtil: Correct the handling of salt in theHashUtilclass to ensure it is stored and retrieved correctly for password validation.
These changes are necessary to meet the core requirements of the task and ensure the functionality and security of the application. Keep up the good work, and once these issues are resolved, your code will be in great shape! 🚀
✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨
🔄 Fix the issues, commit the changes, and then re-request my review using the Re-request review button in the Reviewers tab.
| return "User{id=" + id | ||
| + ", email='" + email | ||
| + | ||
| ", password='****'" + password |
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Including the password in the toString method can be a security risk. It's better to exclude it or mask it completely to prevent accidental logging or exposure.
| if (userOptional.isPresent() && HashUtil.isValidPassword(password,userOptional | ||
| .get().getPassword())) { | ||
| return null; |
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In the login method, if the user is authenticated successfully, you should return the user object instead of null. Modify the return statement to return userOptional.get().
| String salt = hashedPassword.substring(0, 16); | ||
| return hashedPassword.equals(hash(password, salt.getBytes())); |
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The isValidPassword method incorrectly assumes that the salt is the first 16 characters of the hashed password. Ensure that the salt is stored separately or encoded in a way that can be reliably extracted for validation.
| MessageDigest md = MessageDigest.getInstance(HASH_ALGORITHM); | ||
| md.update(salt); | ||
| byte[] hashedPassword = md.digest(password.getBytes()); | ||
| return new String(salt) + new String(hashedPassword); |
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Concatenating the salt and hashed password using new String() can lead to issues with encoding. Consider using a more reliable method to encode and store the salt and hashed password, such as Base64 encoding.
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Great job on implementing the basic setup for testing services and models in your application! 🎉 While the code is functional, there are a few critical areas to address for improved security and functionality:
-
Email Uniqueness: Ensure that the email field in your
Usermodel is marked as unique in the database schema. This will prevent duplicate user entries and maintain data integrity. -
Password Handling: It's crucial to hash passwords before storing or logging them. Storing passwords in plain text poses a significant security risk. Make sure to incorporate salt in the hashing process to enhance security.
-
Salt Usage: In the
HashUtilclass, ensure that the salt is used in the hashing process. Combine the password and salt before hashing, for example, by usingmd.update(salt);beforemd.digest(password.getBytes());. -
Private Constructor in
HashUtil: Consider adding a private constructor to prevent instantiation of the utility class.
These improvements are essential for the security and reliability of your application. Keep up the good work, and make sure to address these issues in future iterations to enhance your code quality. Happy coding! 🚀
✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨
| private static final String EMAIL = "email"; | ||
| private static final String PASSWORD = "Password"; |
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Ensure that the email used for registration is unique. This is crucial to prevent duplicate user entries in the database.
| User user = authenticationService.login(EMAIL, PASSWORD); | ||
| System.out.println("User logged in: " + user); |
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Ensure that the password is hashed before being stored or logged. Storing or logging passwords in plain text is a security risk.
| Transaction transaction = null; | ||
| try (Session session = HibernateUtil.getSessionFactory().openSession()) { | ||
| transaction = session.beginTransaction(); | ||
| session.persist(user); |
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Ensure that the database schema enforces a unique constraint on the email field to prevent duplicate user entries.
| @Id | ||
| @GeneratedValue(strategy = GenerationType.IDENTITY) | ||
| private Long id; | ||
| private String email; |
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Ensure that the email field is marked as unique in the database schema to prevent duplicate entries.
| public static String hashPassword(String password, byte[] salt) { | ||
| try { | ||
| MessageDigest md = MessageDigest.getInstance(HASH_ALGORITHM); | ||
| byte[] hash = md.digest(password.getBytes()); |
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The salt is not being used in the hashing process. You should combine the password and salt before hashing to ensure security. For example, use md.update(salt); before md.digest(password.getBytes());.
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