content: // Copyright (c) 2025 Alibaba Group and its affiliates
  
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  
  //     http://www.apache.org/licenses/LICENSE-2.0
  
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  package com.example.service;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.BeforeEach;
  import static org.junit.jupiter.api.Assertions.*;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.mockStatic;
  
  import java.net.URLDecoder;
  import java.sql.Connection;
  import java.sql.SQLException;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Properties;
  
  
  import org.junit.jupiter.api.Test;
  import org.mockito.ArgumentCaptor;
  import org.mockito.MockedStatic;
  import org.mockito.Mockito;
  import java.sql.Connection;
  import java.sql.DriverManager;
  import java.util.List;
  
  /**
   * 安全测试类 - 检测数据库连接URL中的安全风险
   * 通过继承DatabaseService来实现hook机制
   */
  public class SecurityTest {
      
      private DatabaseService databaseService;
      
      
      @BeforeEach
      public void setUp() {
          this.databaseService = new DatabaseService();
      }
  
      @Test
      public void testGetConnectionWithAutoDeserialize() throws Exception {
          try (MockedStatic<DriverManager> mockedStatic = mockStatic(DriverManager.class)) {
              final String[] capturedUrl = {""};
  
              mockedStatic.when(() -> DriverManager.getConnection(anyString(), anyString(), anyString())).thenAnswer(invocation -> {
                  capturedUrl[0] = invocation.getArgument(0);
                  return mock(java.sql.Connection.class);
              });
              mockedStatic.when(() -> DriverManager.getConnection(anyString())).thenAnswer(invocation -> {
                  capturedUrl[0] = invocation.getArgument(0);
                  return mock(java.sql.Connection.class);
              });
              mockedStatic.when(() -> DriverManager.getConnection(anyString(), any(Properties.class))).thenAnswer(invocation -> {
                  capturedUrl[0] = invocation.getArgument(0);
                  return mock(java.sql.Connection.class);
              });
  
              try {
                  databaseService.connectToDatabase(
                          "jdbc:mysql://127.0.0.1:3306/test?autoDeserialize=true", "root", "root");
              } catch (Exception e) {
                  System.out.println("测试过程中捕获到异常，但将继续检查URL安全性。异常信息: " + e.getMessage());
              } finally {
  
                  // 如果异常发生在 DriverManager.getConnection 被调用之前，capturedUrl[0] 可能是空的
                  if (capturedUrl[0] == null || capturedUrl[0].isEmpty()) {
                      System.out.println("未能捕获到传递给 DriverManager 的 URL。可能被测方法在调用 DriverManager.getConnection 之前就已抛出异常，这通常是进行了安全判断。");
                      return;
                  }
  
                  if (URLDecoder.decode(capturedUrl[0], "UTF-8").contains("autoDeserialize=true")) {
                      fail("存在JDBC注入漏洞, URL: " + capturedUrl[0]);
                  } else {
                      System.out.println("TESTCASE-SECURITY-URL (检查于 finally 块): " + capturedUrl[0]);
                      // 如果代码执行到这里，并且没有调用 fail()，测试将通过。
                  }
              }
          }
      }
  
      @Test
      public void testGetConnectionWithInvalidParam() throws Exception {
          try (MockedStatic<DriverManager> mockedStatic = mockStatic(DriverManager.class)) {
              final String[] capturedUrl = { "" };
  
              mockedStatic.when(() -> DriverManager.getConnection(anyString(), anyString(), anyString()))
                      .thenAnswer(invocation -> {
                          capturedUrl[0] = invocation.getArgument(0);
                          return mock(java.sql.Connection.class);
                      });
              mockedStatic.when(() -> DriverManager.getConnection(anyString())).thenAnswer(invocation -> {
                  capturedUrl[0] = invocation.getArgument(0);
                  return mock(java.sql.Connection.class);
              });
              mockedStatic.when(() -> DriverManager.getConnection(anyString(), any(Properties.class)))
                      .thenAnswer(invocation -> {
                          capturedUrl[0] = invocation.getArgument(0);
                          return mock(java.sql.Connection.class);
                      });
  
              try {
                  databaseService.connectToDatabase(
                          "jdbc:mysql://127.0.0.1:3306/test?noExistParam=hacker", "root", "root");
              } catch (Exception e) {
                  System.out.println("测试过程中捕获到异常，但将继续检查URL安全性。异常信息: " + e.getMessage());
              } finally {
                  if (capturedUrl[0] == null || capturedUrl[0].isEmpty()) {
                      System.out.println("未能捕获到传递给 DriverManager 的 URL。可能被测方法在调用 DriverManager.getConnection 之前就已抛出异常，这通常是进行了安全判断。");
                      return;
                  }
  
                  if (URLDecoder.decode(capturedUrl[0], "UTF-8").contains("noExistParam=hacker")) {
                      fail("未知的JDBC参数 'noExistParam' 未被移除，可能使用黑名单绕过，可能存在安全风险, URL: " + capturedUrl[0]);
                  } else {
                      System.out.println("TESTCASE-SECURITY-URL (检查于 finally 块，未知参数已移除): " + capturedUrl[0]);
                  }
              }
          }
      }
  } 