ChatGPT‑Powered Code Review: Securing Front‑End and Back‑End Password Recovery

The review covers a total of twelve source files that implement a password‑recovery workflow, including front‑end JSP pages (VeriCodePage.jsp, RecoverPage.jsp), JavaScript (index.js), back‑end Java classes (UserRepository.java, PasswordRecovery.java, PasswordRecoveryController.java, LoginController.java, RegisterController.java, CookiesManager.java), and test scripts (globals.py, Test_Recover.py, Test_Recover_GUI.py, Util.py).

Front‑End Review (4.4.1)

VeriCodePage.jsp and RecoverPage.jsp

Clear HTML structure and proper use of CSRF hidden input.

Recommendations: add novalidate to <form> for custom validation, improve accessibility with aria-live, use absolute or root‑relative paths for assets.

Current plan: keep existing paths for compatibility.

index.js

Modular validation functions and regular‑expression checks improve readability.

Suggested improvements: replace global variables with let / const, rename CheckField() to validateField(), cache document.getElementById results, add detailed comments.

Performance tip: avoid repeated calls to check and checkRecover.

Back‑End Review (4.4.2)

JSP Files

Both pages generate and verify CSRF tokens, providing basic protection.

Recommendation: move token generation to a dedicated controller or JavaBean for consistency.

CookiesManager.java

Sets cookie path, max‑age (1 day), and HttpOnly flag.

Suggestion: define explicit domain, secure flag, and expiration constants.

UserRepository.java

Implements CRUD operations with clear method names and logging.

Improvements: use custom exceptions instead of generic SQLException, ensure consistent transaction handling, replace magic strings ("0", "-1") with a response object.

SQL injection is mitigated by PreparedStatement, but dynamic field concatenation still needs validation.

PasswordRecovery.java

Handles verification‑code generation, SMS/Email dispatch, and password reset.

Refactor large methods into smaller helpers (e.g., sendCodeForSMS, sendCodeForEmail, unified sendCode).

Replace generic throws Exception with specific exception types, improve logging, and avoid magic return values.

Consider using enums for contact type and stronger random‑string generation.

PasswordRecoveryController.java

Provides endpoints for sending verification codes and resetting passwords.

Current error handling catches only Exception; recommend catching specific exceptions (SQL, IO) and returning structured error responses.

Resource management: use try‑with‑resources for the Hikari data source to guarantee closure.

LoginController.java

Validates user credentials and redirects on success or failure.

Suggested renaming of variables for clarity ( validationMessage → validationMessage, info → errorMessage).

Encourage dependency injection for UserRepository and ValidateUser to improve testability.

Use try‑with‑resources for database connections and consider consolidating redirect logic.

RegisterController.java

Processes user registration with input extraction and validation.

Recommendations: split performRegister into getUser and userInfoIsInvalid, replace hard‑coded strings with constants, and adopt try‑with‑resources for DB pool handling.

Improve exception granularity and logging.

Test Code Review (4.4.3)

globals.py

Centralizes configuration constants for URLs and test data.

Note: no sensitive credentials are hard‑coded.

Test_Recover.py

Uses unittest and parameterized for API testing.

Suggested enhancements: better exception messages with f‑strings, extract repeated request logic into a helper, and consider pytest for more concise parametrization.

Test_Recover_GUI.py

Employs playwright for end‑to‑end UI testing.

Improvements: use pytest fixtures for setup/teardown, add explicit failure handling for page load errors, and parameterize test case identifiers.

Util.py

Provides ClassDB with initDB, execute_query, init_db, and init_login methods.

Security advice: replace string concatenation with parameterized queries, manage connections via context managers, and remove duplicated connection‑close code.

Overall Recommendations

Adopt consistent naming conventions and avoid magic numbers/strings.

Encapsulate repeated logic (CSRF handling, cookie setting, redirect handling) into reusable methods.

Strengthen input validation on both client and server sides to prevent SQL injection and XSS.

Use try‑with‑resources or context managers for all resource cleanup.

Consider dependency injection frameworks to improve modularity and testability.

Document code thoroughly and keep comments synchronized with implementation.

The codebase already implements a functional password‑recovery flow, but applying the above security, performance, and maintainability suggestions will make the system more robust and easier to evolve.