/*
 * This file is part of WebGoat, an Open Web Application Security Project utility. For details, please see http://www.owasp.org/
 *
 * Copyright (c) 2002 - 2019 Bruce Mayhew
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if
 * not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * Getting Source ==============
 *
 * Source for this application is maintained at https://github.com/WebGoat/WebGoat, a repository for free software projects.
 */

package org.owasp.webgoat.lessons.challenges.challenge5;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.owasp.webgoat.container.LessonDataSource;
import org.owasp.webgoat.container.assignments.AssignmentEndpoint;
import org.owasp.webgoat.container.assignments.AttackResult;
import org.owasp.webgoat.lessons.challenges.Flags;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

@RestController
@Slf4j
@RequiredArgsConstructor
public class Assignment5 extends AssignmentEndpoint {

  private final LessonDataSource dataSource;
  private final Flags flags;

  @PostMapping("/challenge/5")
  @ResponseBody
  public AttackResult login(
      @RequestParam String username_login, @RequestParam String password_login) throws Exception {
    if (!StringUtils.hasText(username_login) || !StringUtils.hasText(password_login)) {
      return failed(this).feedback("required4").build();
    }
    if (!"Larry".equals(username_login)) {
      return failed(this).feedback("user.not.larry").feedbackArgs(username_login).build();
    }
    try (var connection = dataSource.getConnection()) {
      PreparedStatement statement =
          connection.prepareStatement(
              "select password from challenge_users where userid = '"
                  + username_login
                  + "' and password = '"
                  + password_login
                  + "'");
      ResultSet resultSet = statement.executeQuery();

      if (resultSet.next()) {
        return success(this).feedback("challenge.solved").feedbackArgs(flags.getFlag(5)).build();
      } else {
        return failed(this).feedback("challenge.close").build();
      }
    }
  }
}
