package org.owasp.webgoat.lessons.instructor.SQLInjection;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import org.owasp.webgoat.lessons.AbstractLesson;
import org.owasp.webgoat.lessons.SQLInjection.SQLInjection;
import org.owasp.webgoat.lessons.SQLInjection.ViewProfile;
import org.owasp.webgoat.session.Employee;
import org.owasp.webgoat.session.UnauthorizedException;
import org.owasp.webgoat.session.WebSession;

/*
Solution Summary: Edit ViewProfile.java and change getEmployeeProfile().  
                  Modify getEmployeeProfile() with lines denoted by // STAGE 4 - FIX.

Solution Steps:
1. Change dynamic query to parameterized query.
   a. Replace the dynamic varaibles with the "?" 
   		String query = "SELECT * FROM employee WHERE userid = ?"; 
   			
   b. Create a preparedStatement using the new query
   		PreparedStatement answer_statement = SQLInjection.getConnection(s).prepareStatement( 
   				query, ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY ); 

   c. Set the values of the parameterized query
   		answer_statement.setInt(1, Integer.parseInt(subjectUserId));
   		
   d. Execute the preparedStatement
   		ResultSet answer_results = answer_statement.executeQuery();
*/

public class ViewProfile_i extends ViewProfile
{
	public ViewProfile_i(AbstractLesson lesson, String lessonName, String actionName)
	{
		super(lesson, lessonName, actionName);
	}

	public Employee getEmployeeProfile(WebSession s, String userId, String subjectUserId)
			throws UnauthorizedException
	{
		// Query the database to determine if this employee has access to this function
		// Query the database for the profile data of the given employee if "owned" by the given user

		Employee profile = null;
		
		try
		{
			String query = "SELECT * FROM employee WHERE userid = ?"; // STAGE 4 - FIX
			
			try
			{
				PreparedStatement answer_statement = SQLInjection.getConnection(s).prepareStatement( query, 
						ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY ); // STAGE 4 - FIX
				answer_statement.setInt(1, Integer.parseInt(subjectUserId)); // STAGE 4 - FIX
				ResultSet answer_results = answer_statement.executeQuery(); // STAGE 4 - FIX
				if (answer_results.next())
				{
					// Note: Do NOT get the password field.
					profile = new Employee(
							answer_results.getInt("userid"),
							answer_results.getString("first_name"),
							answer_results.getString("last_name"),
							answer_results.getString("ssn"),
							answer_results.getString("title"),
							answer_results.getString("phone"),
							answer_results.getString("address1"),
							answer_results.getString("address2"),
							answer_results.getInt("manager"),
							answer_results.getString("start_date"),
							answer_results.getInt("salary"),
							answer_results.getString("ccn"),
							answer_results.getInt("ccn_limit"),
							answer_results.getString("disciplined_date"),
							answer_results.getString("disciplined_notes"),
							answer_results.getString("personal_description"));
/*					System.out.println("Retrieved employee from db: " + 
							profile.getFirstName() + " " + profile.getLastName() + 
							" (" + profile.getId() + ")");
*/				}
			}
			catch ( SQLException sqle )
			{
				s.setMessage( "Error getting employee profile" );
				sqle.printStackTrace();
			}
		}
		catch ( Exception e )
		{
			s.setMessage( "Error getting employee profile" );
			e.printStackTrace();
		}
		
		return profile;
	}
	
}
