Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
core/src/main/java/com/databasir/core/infrastructure/driver/DriverResources.java
### 代码内容：
package com.databasir.core.infrastructure.driver;

import com.databasir.core.domain.DomainErrors;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.ClassUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Component;
import org.springframework.util.StreamUtils;
import org.springframework.web.client.RestClientException;
import org.springframework.web.client.RestTemplate;

import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.util.jar.JarFile;

@Component
@Slf4j
@RequiredArgsConstructor
public class DriverResources {

    @Value("${databasir.db.driver-directory}")
    private String driverBaseDirectory;

    private final RestTemplate restTemplate;

    public DriverResult loadFromLocal(String localPath) {
        File driverFile = Paths.get(localPath).toFile();
        if (driverFile.exists()) {
            return new DriverResult(localPath, driverFile);
        } else {
            throw DomainErrors.LOAD_DRIVER_FAILED.exception();
        }
    }

    public DriverResult tempLoadFromRemote(String remoteUrl) {
        Path dirPath;
        try {
            dirPath = Files.createTempDirectory("databasir-drivers");
        } catch (IOException e) {
            log.error("load driver error cause create temp dir failed", e);
            throw DomainErrors.DOWNLOAD_DRIVER_ERROR.exception();
        }
        File file = download(remoteUrl, dirPath.toString());
        return new DriverResult(file.getAbsolutePath(), file);
    }

    private File download(String driverFileUrl, String parentDir) {
        Path parentDirPath = Paths.get(parentDir);
        try {
            Files.createDirectories(parentDirPath);
        } catch (IOException e) {
            log.error("下载驱动时创建目录失败", e);
            throw DomainErrors.DOWNLOAD_DRIVER_ERROR.exception(e);
        }

        // download
        try {
            return restTemplate.execute(driverFileUrl, HttpMethod.GET, null, response -> {
                if (response.getStatusCode().is2xxSuccessful()) {
                    String prefix = System.currentTimeMillis() + "";
                    String originFileName = response.getHeaders().getContentDisposition().getFilename();
                    String filename;
                    if (originFileName == null) {
                        URL url = new URL(driverFileUrl);
                        String nameFromUrl = FilenameUtils.getName(url.getPath());
                        if (StringUtils.endsWith(nameFromUrl, ".jar")) {
                            filename = prefix + "-" + nameFromUrl;
                        } else {
                            filename = prefix + ".jar";
                        }
                    } else {
                        filename = prefix + "-" + originFileName;
                    }
                    File targetFile = Paths.get(parentDir, filename).toFile();
                    FileOutputStream out = new FileOutputStream(targetFile);
                    StreamUtils.copy(response.getBody(), out);
                    IOUtils.closeQuietly(out, ex -> log.error("close file error", ex));
                    log.info("{} download success ", targetFile);
                    return targetFile;
                } else {
                    log.error("{} download error from {}: {} ", parentDir, driverFileUrl, response);
                    throw DomainErrors.DOWNLOAD_DRIVER_ERROR.exception("驱动下载失败："
                            + response.getStatusCode()
                            + ", "
                            + response.getStatusText());
                }
            });
        } catch (RestClientException e) {
            log.error(parentDir + " download driver error", e);
            throw DomainErrors.DOWNLOAD_DRIVER_ERROR.exception(e.getMessage());
        }
    }

    public void deleteByDatabaseType(String databaseType) {
        String baseDir = driverBaseDirectory + "/" + databaseType;
        Path path = Paths.get(baseDir);
        try {
            if (Files.exists(path)) {
                Files.list(path).forEach(file -> {
                    try {
                        Files.deleteIfExists(file);
                    } catch (IOException e) {
                        log.error("delete file error " + file, e);
                    }
                });
            }
            Files.deleteIfExists(path);
        } catch (IOException e) {
            log.error("delete driver error " + databaseType, e);
        }
    }

    public String resolveDriverClassNameFromRemote(String driverFileUrl) {
        DriverResult driverResult = tempLoadFromRemote(driverFileUrl);
        File driverFile = driverResult.getDriverFile();
        String className = resolveDriverClassName(driverFile);
        try {
            Files.deleteIfExists(driverFile.toPath());
        } catch (IOException e) {
            log.error("delete driver error from " + driverResult.getDriverFilePath(), e);
        }
        return className;
    }

    public String resolveDriverClassNameFromLocal(String driverFilePath) {
        File driverFile = Paths.get(driverFilePath).toFile();
        if (!driverFile.exists()) {
            throw DomainErrors.DRIVER_CLASS_NOT_FOUND.exception("驱动文件不存在，请重新上传");
        }
        return resolveDriverClassName(driverFile);
    }

    public String resolveDriverClassName(File driverFile) {
        JarFile jarFile = null;
        try {
            jarFile = new JarFile(driverFile);
        } catch (IOException e) {
            log.error("resolve driver class name error", e);
            throw DomainErrors.DRIVER_CLASS_NOT_FOUND.exception(e.getMessage());
        }

        final JarFile driverJar = jarFile;
        String driverClassName = jarFile.stream()
                .filter(entry -> entry.getName().contains("META-INF/services/java.sql.Driver"))
                .findFirst()
                .map(entry -> {
                    InputStream stream = null;
                    BufferedReader reader = null;
                    try {
                        stream = driverJar.getInputStream(entry);
                        reader = new BufferedReader(new InputStreamReader(stream));
                        return reader.readLine();
                    } catch (IOException e) {
                        log.error("resolve driver class name error", e);
                        throw DomainErrors.DRIVER_CLASS_NOT_FOUND.exception(e.getMessage());
                    } finally {
                        IOUtils.closeQuietly(reader, ex -> log.error("close reader error", ex));
                    }
                })
                .orElseThrow(DomainErrors.DRIVER_CLASS_NOT_FOUND::exception);
        IOUtils.closeQuietly(jarFile, ex -> log.error("close jar file error", ex));
        return driverClassName;
    }

    public void validateDriverJar(File driverFile, String className) {
        URLClassLoader loader = null;
        try {
            loader = new URLClassLoader(
                    new URL[]{driverFile.toURI().toURL()},
                    this.getClass().getClassLoader()
            );
        } catch (MalformedURLException e) {
            log.error("load driver jar error ", e);
            throw DomainErrors.DOWNLOAD_DRIVER_ERROR.exception(e.getMessage());
        }

        try {
            Class clazz = Class.forName(className, false, loader);
            boolean isValid = ClassUtils.getAllInterfaces(clazz)
                    .stream()
                    .anyMatch(cls -> cls.getName().equals("java.sql.Driver"));
            if (!isValid) {
                throw DomainErrors.DRIVER_CLASS_NOT_FOUND.exception("不合法的驱动类，请重新指定");
            }
        } catch (ClassNotFoundException e) {
            log.error("init driver error", e);
            throw DomainErrors.DRIVER_CLASS_NOT_FOUND.exception("驱动初始化异常, 请检查驱动类名：" + e.getMessage());
        } finally {
            IOUtils.closeQuietly(loader);
        }
    }

    public String copyToStandardDirectory(File sourceFile, String databaseType) {
        String targetFile = targetDriverFile(databaseType, sourceFile.getName());
        try {
            Path target = Paths.get(targetFile);
            Files.createDirectories(target.getParent());
            Files.copy(sourceFile.toPath(), target, StandardCopyOption.REPLACE_EXISTING);
            return targetFile;
        } catch (IOException e) {
            log.error("copy driver file error", e);
            throw DomainErrors.DOWNLOAD_DRIVER_ERROR.exception(e.getMessage());
        }
    }

    private String targetDriverFile(String databaseType, String fileName) {
        return driverBaseDirectory
                + "/" + databaseType
                + "/" + fileName;
    }
}

Output:
【漏洞类型】服务器端请求伪造（SSRF）
【严重性】High
【漏洞摘要】此代码存在服务器端请求伪造（SSRF）漏洞。具体表现为在`tempLoadFromRemote`方法中，使用`RestTemplate.execute`从提供的`remoteUrl`下载文件，而未对`remoteUrl`进行任何验证。攻击者可以通过构造恶意的`remoteUrl`（如内网资源、本地文件等）来执行未经授权的请求，从而可能泄露敏感信息或导致其他安全问题。
【关键代码模式】`RestTemplate.execute(driverFileUrl, HttpMethod.GET, null, response -> { ... })`、`new URL(driverFileUrl)`。
【修复方法说明】修复方法通过修改错误日志信息，增加了对下载失败原因的更具体描述，但并未解决根本的SSRF漏洞问题。建议在下载文件之前，对`remoteUrl`进行验证和过滤，确保其指向的资源是合法的。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
publiccms-parent/publiccms-core/src/main/java/com/publiccms/controller/admin/sys/UeditorAdminController.java
### 代码内容：
package com.publiccms.controller.admin.sys;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.SessionAttribute;
import org.springframework.web.multipart.MultipartFile;

import com.drew.imaging.FileType;
import com.drew.imaging.FileTypeDetector;
import com.publiccms.common.constants.CommonConstants;
import com.publiccms.common.handler.PageHandler;
import com.publiccms.common.tools.CmsFileUtils;
import com.publiccms.common.tools.CommonUtils;
import com.publiccms.common.tools.RequestUtils;
import com.publiccms.common.tools.VerificationUtils;
import com.publiccms.entities.log.LogUpload;
import com.publiccms.entities.sys.SysSite;
import com.publiccms.entities.sys.SysUser;
import com.publiccms.logic.component.site.SiteComponent;
import com.publiccms.logic.service.log.LogLoginService;
import com.publiccms.logic.service.log.LogUploadService;
import com.publiccms.views.pojo.entities.FileSize;
import com.publiccms.views.pojo.entities.UeditorConfig;

/**
 *
 * UeditorAdminController
 *
 */
@Controller
@RequestMapping("ueditor")
public class UeditorAdminController {
    protected final Log log = LogFactory.getLog(getClass());
    @Autowired
    protected LogUploadService logUploadService;
    @Autowired
    protected SiteComponent siteComponent;

    protected static final String ACTION_CONFIG = "config";
    protected static final String ACTION_UPLOAD = "upload";
    protected static final String ACTION_UPLOAD_SCRAW = "uploadScraw";
    protected static final String ACTION_CATCHIMAGE = "catchimage";
    protected static final String ACTION_LISTFILE = "listfile";

    protected static final String FIELD_NAME = "file";
    protected static final String SCRAW_TYPE = ".jpg";

    protected static final String[] IMAGE_ALLOW_FILES = new String[] { ".png", ".jpg", ".jpeg", ".gif", ".bmp", ".svg" };

    protected static final String[] VIDEO_ALLOW_FILES = new String[] { ".flv", ".swf", ".mkv", ".avi", ".rm", ".rmvb", ".mpeg",
            ".mpg", ".ogg", ".ogv", ".mov", ".wmv", ".mp4", ".webm", ".mp3", ".wav", ".mid" };
    public static final String[] ALLOW_FILES = ArrayUtils.addAll(ArrayUtils.addAll(VIDEO_ALLOW_FILES, IMAGE_ALLOW_FILES),
            new String[] { ".rar", ".zip", ".tar", ".gz", ".7z", ".bz2", ".cab", ".iso", ".doc", ".docx", ".xls", ".xlsx", ".ppt",
                    ".pptx", ".pdf", ".txt", ".md", ".xml" });

    /**
     * @param request
     * @return view name
     */
    @RequestMapping(params = "action=" + ACTION_CONFIG)
    @ResponseBody
    public UeditorConfig config(HttpServletRequest request) {
        String urlPrefix = siteComponent.getSite(request.getServerName()).getSitePath();
        UeditorConfig config = new UeditorConfig();
        config.setImageActionName(ACTION_UPLOAD);
        config.setSnapscreenActionName(ACTION_UPLOAD);
        config.setScrawlActionName(ACTION_UPLOAD_SCRAW);
        config.setVideoActionName(ACTION_UPLOAD);
        config.setFileActionName(ACTION_UPLOAD);
        config.setCatcherActionName(ACTION_CATCHIMAGE);
        config.setImageManagerActionName(ACTION_LISTFILE);
        config.setFileManagerActionName(ACTION_LISTFILE);
        config.setImageFieldName(FIELD_NAME);
        config.setScrawlFieldName(FIELD_NAME);
        config.setCatcherFieldName(FIELD_NAME);
        config.setVideoFieldName(FIELD_NAME);
        config.setFileFieldName(FIELD_NAME);
        config.setImageUrlPrefix(urlPrefix);
        config.setScrawlUrlPrefix(urlPrefix);
        config.setSnapscreenUrlPrefix(urlPrefix);
        config.setCatcherUrlPrefix(urlPrefix);
        config.setVideoUrlPrefix(urlPrefix);
        config.setFileUrlPrefix(urlPrefix);
        config.setImageManagerUrlPrefix(urlPrefix);
        config.setFileManagerUrlPrefix(urlPrefix);
        config.setImageAllowFiles(IMAGE_ALLOW_FILES);
        config.setCatcherAllowFiles(IMAGE_ALLOW_FILES);
        config.setVideoAllowFiles(VIDEO_ALLOW_FILES);
        config.setFileAllowFiles(ALLOW_FILES);
        config.setImageManagerAllowFiles(IMAGE_ALLOW_FILES);
        config.setFileManagerAllowFiles(ALLOW_FILES);
        return config;
    }

    /**
     * @param site
     * @param admin
     * @param file
     * @param request
     * @param model
     * @return view name
     */
    @RequestMapping(params = "action=" + ACTION_UPLOAD)
    public String upload(@RequestAttribute SysSite site, @SessionAttribute SysUser admin, MultipartFile file,
            HttpServletRequest request, ModelMap model) {
        if (null != file && !file.isEmpty()) {
            String originalName = file.getOriginalFilename();
            String suffix = CmsFileUtils.getSuffix(originalName);
            if (ArrayUtils.contains(ALLOW_FILES, suffix)) {
                String fileName = CmsFileUtils.getUploadFileName(suffix);
                String filePath = siteComponent.getWebFilePath(site, fileName);
                try {
                    CmsFileUtils.upload(file, filePath);
                    FileSize fileSize = CmsFileUtils.getFileSize(filePath, suffix);
                    logUploadService.save(new LogUpload(site.getId(), admin.getId(), LogLoginService.CHANNEL_WEB_MANAGER,
                            originalName, CmsFileUtils.getFileType(suffix), file.getSize(), fileSize.getWidth(),
                            fileSize.getHeight(), RequestUtils.getIpAddress(request), CommonUtils.getDate(), fileName));
                    Map<String, Object> map = getResultMap(true);
                    map.put("size", file.getSize());
                    map.put("title", originalName);
                    map.put("url", fileName);
                    map.put("type", suffix);
                    map.put("original", originalName);
                    model.addAttribute("result", map);
                } catch (IllegalStateException | IOException e) {
                    model.addAttribute("result", getResultMap(false));
                }
            } else {
                model.addAttribute("result", getResultMap(false));
            }
        } else {
            model.addAttribute("result", getResultMap(false));
        }
        return "common/mapResult";
    }

    /**
     * @param site
     * @param admin
     * @param file
     * @param request
     * @param session
     * @return view name
     */
    @RequestMapping(params = "action=" + ACTION_UPLOAD_SCRAW)
    @ResponseBody
    public Map<String, Object> uploadScraw(@RequestAttribute SysSite site, @SessionAttribute SysUser admin, String file,
            HttpServletRequest request, HttpSession session) {
        if (CommonUtils.notEmpty(file)) {
            byte[] data = VerificationUtils.base64Decode(file);
            String fileName = CmsFileUtils.getUploadFileName(SCRAW_TYPE);
            String filePath = siteComponent.getWebFilePath(site, fileName);
            try {
                CmsFileUtils.writeByteArrayToFile(filePath, data);
                FileSize fileSize = CmsFileUtils.getFileSize(filePath, SCRAW_TYPE);
                logUploadService.save(new LogUpload(site.getId(), admin.getId(), LogLoginService.CHANNEL_WEB_MANAGER,
                        CommonConstants.BLANK, CmsFileUtils.FILE_TYPE_IMAGE, data.length, fileSize.getWidth(),
                        fileSize.getHeight(), RequestUtils.getIpAddress(request), CommonUtils.getDate(), fileName));
                Map<String, Object> map = getResultMap(true);
                map.put("size", data.length);
                map.put("title", fileName);
                map.put("url", fileName);
                map.put("type", SCRAW_TYPE);
                map.put("original", "scraw" + SCRAW_TYPE);
                return map;
            } catch (IllegalStateException | IOException e) {
                log.error(e.getMessage(), e);
                return getResultMap(false);
            }
        }
        return getResultMap(false);
    }

    /**
     * @param site
     * @param admin
     * @param request
     * @param session
     * @return view name
     */
    @RequestMapping(params = "action=" + ACTION_CATCHIMAGE)
    @ResponseBody
    public Map<String, Object> catchimage(@RequestAttribute SysSite site, @SessionAttribute SysUser admin,
            HttpServletRequest request, HttpSession session) {
        try (CloseableHttpClient httpclient = HttpClients.custom().setDefaultRequestConfig(CommonConstants.defaultRequestConfig)
                .build();) {
            String[] files = request.getParameterValues(FIELD_NAME + "[]");
            if (CommonUtils.notEmpty(files)) {
                List<Map<String, Object>> list = new ArrayList<>();
                for (String image : files) {
                    HttpGet httpget = new HttpGet(image);
                    CloseableHttpResponse response = httpclient.execute(httpget);
                    HttpEntity entity = response.getEntity();
                    if (null != entity) {
                        BufferedInputStream inputStream = new BufferedInputStream(entity.getContent());
                        FileType fileType = FileTypeDetector.detectFileType(inputStream);
                        String suffix = fileType.getCommonExtension();
                        if (CommonUtils.notEmpty(suffix)) {
                            String fileName = CmsFileUtils.getUploadFileName(suffix);
                            String filePath = siteComponent.getWebFilePath(site, fileName);
                            CmsFileUtils.copyInputStreamToFile(inputStream, filePath);
                            FileSize fileSize = CmsFileUtils.getFileSize(filePath, suffix);
                            logUploadService.save(new LogUpload(site.getId(), admin.getId(), LogLoginService.CHANNEL_WEB_MANAGER,
                                    CommonConstants.BLANK, CmsFileUtils.getFileType(suffix), entity.getContentLength(),
                                    fileSize.getWidth(), fileSize.getHeight(), RequestUtils.getIpAddress(request),
                                    CommonUtils.getDate(), fileName));
                            Map<String, Object> map = getResultMap(true);
                            map.put("size", entity.getContentLength());
                            map.put("title", fileName);
                            map.put("url", fileName);
                            map.put("source", image);
                            list.add(map);
                        }

                    }
                    EntityUtils.consume(entity);
                }
                Map<String, Object> map = getResultMap(true);
                map.put("list", list);
                return map;
            }
        } catch (Exception e) {
            log.error(e.getMessage(), e);
            return getResultMap(false);
        }
        return getResultMap(false);
    }

    /**
     * @param admin
     * @param start
     * @param request
     * @param session
     * @return view name
     */
    @SuppressWarnings("unchecked")
    @RequestMapping(params = "action=" + ACTION_LISTFILE)
    @ResponseBody
    public Map<String, Object> listfile(@SessionAttribute SysUser admin, Integer start, HttpServletRequest request,
            HttpSession session) {
        if (CommonUtils.empty(start)) {
            start = 0;
        }
        PageHandler page = logUploadService.getPage(siteComponent.getSite(request.getServerName()).getId(), admin.getId(), null,
                null, null, null, null, null, start / 20 + 1, 20);

        Map<String, Object> map = getResultMap(true);
        List<Map<String, Object>> list = new ArrayList<>();
        for (LogUpload logUpload : ((List<LogUpload>) page.getList())) {
            Map<String, Object> tempMap = getResultMap(true);
            tempMap.put("url", logUpload.getFilePath());
            list.add(tempMap);
        }
        map.put("list", list);
        map.put("start", start);
        map.put("total", page.getTotalCount());
        return map;
    }

    protected static Map<String, Object> getResultMap(boolean success) {
        Map<String, Object> map = new HashMap<>();
        if (success) {
            map.put("state", "SUCCESS");
        } else {
            map.put("state", "error");
        }
        return map;
    }
}

Output:
【漏洞类型】路径遍历漏洞
【严重性】High
【漏洞摘要】该代码在处理文件上传时，未对上传文件的文件类型进行充分验证，可能导致恶意文件通过文件上传功能被写入服务器。具体表现为`upload`方法中对文件后缀的检查不严格，攻击者可以通过上传具有恶意内容的文件来触发漏洞。
【关键代码模式】相关的关键代码模式包括文件上传功能、文件类型检测和文件保存操作。具体关键词包括`MultipartFile`、`CmsFileUtils.upload`、`CmsFileUtils.writeByteArrayToFile`和`CmsFileUtils.copyInputStreamToFile`。
【修复方法说明】修复方法通过检查文件的MIME类型是否以“image/”开头，以确保只有图片文件被允许上传。这提高了文件类型检测的严格性，防止了恶意文件的上传。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
qtiworks-engine/src/main/java/uk/ac/ed/ph/qtiworks/services/AssessmentPackageFileImporter.java
### 代码内容：
package uk.ac.ed.ph.qtiworks.services;

import uk.ac.ed.ph.qtiworks.QtiWorksRuntimeException;
import uk.ac.ed.ph.qtiworks.domain.entities.AssessmentPackage;
import uk.ac.ed.ph.qtiworks.domain.entities.AssessmentPackageImportType;
import uk.ac.ed.ph.qtiworks.services.domain.AssessmentPackageDataImportException;
import uk.ac.ed.ph.qtiworks.services.domain.AssessmentPackageDataImportException.ImportFailureReason;

import uk.ac.ed.ph.jqtiplus.internal.util.Assert;
import uk.ac.ed.ph.jqtiplus.node.AssessmentObjectType;
import uk.ac.ed.ph.jqtiplus.utils.contentpackaging.ContentPackageResource;
import uk.ac.ed.ph.jqtiplus.utils.contentpackaging.ImsManifestException;
import uk.ac.ed.ph.jqtiplus.utils.contentpackaging.QtiContentPackageExtractor;
import uk.ac.ed.ph.jqtiplus.utils.contentpackaging.QtiContentPackageSummary;
import uk.ac.ed.ph.jqtiplus.xmlutils.XmlResourceNotFoundException;

import java.io.EOFException;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipInputStream;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import com.google.common.io.ByteStreams;

/**
 * Tiny helper service for importing assessment package data into the filesystem
 *

 * (This should have been absorbed into {@link AssessmentPackageFileService}, but its current lack
 * of dependencies makes it easy to unit test!)
 *

 * This is NO authorisation at this level.
 *
 * @author David McKain
 */
@Service
public class AssessmentPackageFileImporter {

    private static final Logger logger = LoggerFactory.getLogger(AssessmentPackageFileImporter.class);

    /** File name that will be used when uploading standalone XML */
    private static final String STANDALONE_XML_IMPORT_FILE_NAME = "qti.xml";

    /**
     * Imports the assessment data from the given {@link MultipartFile} into the given
     * sandbox directory, which the caller must have created.
     *

     * Returns a partially-filled unpersisted {@link AssessmentPackage} object representing the
     * results of this.
     *
     * @throws AssessmentPackageDataImportException
     * @throws IllegalArgumentException if any of the provided arguments are null
     * @throws QtiWorksRuntimeException if something unexpected happens, such as experiencing
     *   an {@link IOException}
     */
    public AssessmentPackage importAssessmentPackageData(final File importSandboxDirectory,
            final MultipartFile multipartFile)
            throws AssessmentPackageDataImportException {
        Assert.notNull(importSandboxDirectory, "importSandboxDirectory");
        Assert.notNull(multipartFile, "multipartFile");
        AssessmentPackage assessmentPackage = null;

        final String contentType = ServiceUtilities.computeContentType(multipartFile);
        if ("application/xml".equals(contentType) || "text/xml".equals(contentType) || contentType.endsWith("+xml")) {
            /* Looks like an XML content type */
            logger.debug("Import data uses a known XML MIME type {} so saving to {} and treating as XML", contentType, importSandboxDirectory);
            assessmentPackage = importStandaloneXml(importSandboxDirectory, multipartFile);
        }
        else {
            /* Try to treat as a ZIP */
            final boolean zipSuccess = tryUnpackZipFile(importSandboxDirectory, multipartFile);
            if (zipSuccess) {
                logger.debug("Import data was successfully expanded as a ZIP file");
                assessmentPackage = processUnpackedZip(importSandboxDirectory);
            }
            else {
                logger.warn("Import data with MIME type {} was neither a supported XML MIME type nor a ZIP file (containing at least one entry)", contentType);
                throw new AssessmentPackageDataImportException(ImportFailureReason.NOT_XML_OR_ZIP);
            }
        }

        logger.info("Successfully imported data for new {}", assessmentPackage);
        return assessmentPackage;
    }

    private AssessmentPackage importStandaloneXml(final File importSandboxDirectory, final MultipartFile multipartFile) {
        /* Save XML */
        final File resultFile = new File(importSandboxDirectory, STANDALONE_XML_IMPORT_FILE_NAME);
        try {
            multipartFile.transferTo(resultFile);
        }
        catch (final IOException e) {
            throw QtiWorksRuntimeException.unexpectedException(e);
        }

        /* Create AssessmentPackage representing this */
        final AssessmentPackage assessmentPackage = new AssessmentPackage();
        assessmentPackage.setAssessmentType(AssessmentObjectType.ASSESSMENT_ITEM);
        assessmentPackage.setImportType(AssessmentPackageImportType.STANDALONE_ITEM_XML);
        assessmentPackage.setAssessmentHref(STANDALONE_XML_IMPORT_FILE_NAME);
        assessmentPackage.setSandboxPath(importSandboxDirectory.getAbsolutePath());
        assessmentPackage.setQtiFileHrefs(new HashSet<String>(Arrays.asList(STANDALONE_XML_IMPORT_FILE_NAME)));
        return assessmentPackage;
    }

    private boolean tryUnpackZipFile(final File importSandboxDirectory, final MultipartFile multipartFile) {
        /* Extract ZIP contents */
        ZipEntry zipEntry = null;
        InputStream inputStream = null;
        ZipInputStream zipInputStream = null;
        boolean foundEntry = false;
        try {
            inputStream = ServiceUtilities.ensureInputSream(multipartFile);
            zipInputStream = new ZipInputStream(inputStream);
            while ((zipEntry = zipInputStream.getNextEntry()) != null) {
                foundEntry = true;
                final File destFile = new File(importSandboxDirectory, zipEntry.getName());
                if (!zipEntry.isDirectory()) {
                    ServiceUtilities.ensureFileCreated(destFile);
                    final FileOutputStream destOutputStream = new FileOutputStream(destFile);
                    try {
                        ByteStreams.copy(zipInputStream, destOutputStream);
                    }
                    finally {
                        ServiceUtilities.ensureClose(destOutputStream);
                    }
                    zipInputStream.closeEntry();
                }
            }
        }
        catch (final EOFException e) {
            /* (Might get this if the ZIP file is truncated for some reason) */
            return false;
        }
        catch (final ZipException e) {
            return false;
        }
        catch (final IOException e) {
            throw QtiWorksRuntimeException.unexpectedException(e);
        }
        finally {
            ServiceUtilities.ensureClose(zipInputStream, inputStream);
        }
        return foundEntry;
    }

    private AssessmentPackage processUnpackedZip(final File importSandboxDirectory)
            throws AssessmentPackageDataImportException {
        /* Expand content package */
        final QtiContentPackageExtractor contentPackageExtractor = new QtiContentPackageExtractor(importSandboxDirectory);
        QtiContentPackageSummary contentPackageSummary;
        try {
            contentPackageSummary = contentPackageExtractor.parse();
        }
        catch (final XmlResourceNotFoundException e) {
            throw new AssessmentPackageDataImportException(ImportFailureReason.NOT_CONTENT_PACKAGE, e);
        }
        catch (final ImsManifestException e) {
            throw new AssessmentPackageDataImportException(ImportFailureReason.BAD_IMS_MANIFEST, e);
        }
        logger.trace("Submitted content package was successfully parsed as {}", contentPackageSummary);

        /* Build appropriate result based on number of item & test resources found */
        final int testCount = contentPackageSummary.getTestResources().size();
        final int itemCount = contentPackageSummary.getItemResources().size();
        final AssessmentPackage assessmentPackage = new AssessmentPackage();
        assessmentPackage.setImportType(AssessmentPackageImportType.CONTENT_PACKAGE);
        assessmentPackage.setSandboxPath(importSandboxDirectory.getAbsolutePath());
        if (testCount==1) {
            /* Treat as a test */
            logger.debug("Package contains 1 test resource, so treating this as an AssessmentTest");
            assessmentPackage.setAssessmentType(AssessmentObjectType.ASSESSMENT_TEST);
            assessmentPackage.setAssessmentHref(checkPackageFile(importSandboxDirectory,
                    contentPackageSummary.getTestResources().get(0).getHref()));
        }
        else if (testCount==0 && itemCount==1) {
            /* Treat as an item */
            logger.debug("Package contains 1 item resource and no test resources, so treating this as an AssessmentItem");
            assessmentPackage.setAssessmentType(AssessmentObjectType.ASSESSMENT_ITEM);
            assessmentPackage.setAssessmentHref(checkPackageFile(importSandboxDirectory,
                    contentPackageSummary.getItemResources().get(0).getHref()));
        }
        else {
            /* Barf */
            logger.debug("Package contains {} items and {} tests. Don't know how to deal with this", itemCount, testCount);
            throw new AssessmentPackageDataImportException(ImportFailureReason.UNSUPPORTED_PACKAGE_CONTENTS, itemCount, testCount);
        }

        /* Build up Set of all files in the package. We need to be a bit careful to flag up the
         * ones that correspond to QTI files. We'll assume that QTI files are the *first* ones
         * listed in each item/test resource in the CP, though this is not clear from the CP spec
         */
        final Set<String> packageQtiFileBuilder = new HashSet<String>();
        final Set<String> packageSafeFileBuilder = new HashSet<String>();
        buildPackageFileMap(importSandboxDirectory, packageQtiFileBuilder, packageSafeFileBuilder, contentPackageSummary.getItemResources());
        buildPackageFileMap(importSandboxDirectory, packageQtiFileBuilder, packageSafeFileBuilder, contentPackageSummary.getTestResources());
        assessmentPackage.setQtiFileHrefs(packageQtiFileBuilder);
        assessmentPackage.setSafeFileHrefs(packageSafeFileBuilder);

        return assessmentPackage;
    }

    /**
     * Builds up the provided Map of all files within this package, flagging those which correspond
     * to QTI XML files, which are assumed to be the *first* files declared within item or test
     * resource elements in the manifest.
     */
    private void buildPackageFileMap(final File importSandboxDirectory,
            final Set<String> packageQtiFileBuilder, final Set<String> packageSafeFileBuilder,
            final List<ContentPackageResource> qtiResources)
            throws AssessmentPackageDataImportException {
        for (final ContentPackageResource qtiResource : qtiResources) {
            final List<URI> fileHrefs = qtiResource.getFileHrefs();
            boolean isFirst = true;
            for (final URI fileHref : fileHrefs) {
                final String fileHrefString = checkPackageFile(importSandboxDirectory, fileHref);
                if (isFirst) {
                    packageQtiFileBuilder.add(fileHrefString);
                }
                else {
                    packageSafeFileBuilder.add(fileHrefString);
                }
                isFirst = false;
            }
        }
    }

    /**
     * Checks the given file URI (href) and makes sure it exists within the sandbox.
     * Returns the original href as a String if successful, otherwise throws
     * {@link AssessmentPackageDataImportException}.
     */
    private String checkPackageFile(final File importSandboxDirectory, final URI href)
            throws AssessmentPackageDataImportException {
        final String hrefString = href.toString();
        final URI sandboxUri = importSandboxDirectory.toURI();
        final URI resolvedFileUri = sandboxUri.resolve(href);

        /* Make sure href points to something within the sandbox */
        if (!resolvedFileUri.toString().startsWith(sandboxUri.toString())) {
            throw new AssessmentPackageDataImportException(ImportFailureReason.HREF_OUTSIDE_PACKAGE, hrefString);
        }

        /* Make sure file exists */
        final File resolvedFile = new File(resolvedFileUri);
        if (!resolvedFile.exists()) {
            throw new AssessmentPackageDataImportException(ImportFailureReason.FILE_MISSING, hrefString);
        }

        return hrefString;
    }
}

Output:
【漏洞类型】路径遍历漏洞
【严重性】High
【漏洞摘要】这是一个路径遍历漏洞。具体表现为，在`tryUnpackZipFile`函数中，未对从ZIP文件中提取的文件路径进行有效的规范化验证，导致攻击者可以利用恶意构建的ZIP文件在目标文件系统中将文件解压到意外的目录中。根本原因是，`checkPackageFile`函数虽然验证了文件路径是否在沙盒目录内，但在解压ZIP文件时，未对每个文件的路径进行类似的规范化验证，攻击者可以利用相对路径或特殊字符（如`../`）来绕过这种检查。
【关键代码模式】与路径遍历漏洞相关的关键代码模式包括：验证文件路径是否在目标目录内、使用`File`对象的路径操作函数（如`getCanonicalPath()`、`getAbsolutePath()`）、处理ZIP文件时的路径规范化（如`normalize()`）。
【修复方法说明】修复方法通过在解压ZIP文件时对每个文件的路径进行规范化验证，确保其在沙盒目录内，从而防止路径遍历攻击。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
backend/src/main/java/io/dataease/dto/datasource/MysqlConfiguration.java
### 代码内容：
package io.dataease.dto.datasource;

import io.dataease.plugins.datasource.entity.JdbcConfiguration;
import lombok.Getter;
import lombok.Setter;
import org.apache.commons.lang3.StringUtils;

@Getter
@Setter
public class MysqlConfiguration extends JdbcConfiguration {

    private String driver = "com.mysql.jdbc.Driver";
    private String extraParams = "characterEncoding=UTF-8&connectTimeout=5000&useSSL=false&allowPublicKeyRetrieval=true&zeroDateTimeBehavior=convertToNull";

    public String getJdbc() {
        if(StringUtils.isEmpty(extraParams.trim())){
            return "jdbc:mysql://HOSTNAME:PORT/DATABASE"
                    .replace("HOSTNAME", getHost().trim())
                    .replace("PORT", getPort().toString().trim())
                    .replace("DATABASE", getDataBase().trim());
        }else {
            return "jdbc:mysql://HOSTNAME:PORT/DATABASE?EXTRA_PARAMS"
                    .replace("HOSTNAME", getHost().trim())
                    .replace("PORT", getPort().toString().trim())
                    .replace("DATABASE", getDataBase().trim())
                    .replace("EXTRA_PARAMS", getExtraParams().trim());
        }
    }
}

Output:
【漏洞类型】反序列化漏洞
【严重性】High
【漏洞摘要】这是一个反序列化漏洞。原始代码中，`extraParams` 字符串包含了多个参数设置，其中包括 `allowPublicKeyRetrieval=true` 和 `autoDeserialize`（如果存在的话）。这些参数可能会被恶意用户利用来执行反序列化操作，从而导致安全问题。具体表现为在 `getJdbc()` 方法中直接使用用户提供的 `extraParams` 字符串构建数据库连接URL，而没有对其内容进行任何安全验证或过滤。
【关键代码模式】` StringUtils.isEmpty(extraParams.trim())` 和 `getExtraParams().contains(illegalParameter)`。
【修复方法说明】修复方法通过添加一个非法参数列表，并在 `getJdbc()` 方法中检查 `extraParams` 是否包含这些非法参数，从而阻止潜在的反序列化攻击。最佳实践是始终对用户输入进行严格的验证和过滤，以防止未经授权的操作。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
server/src/main/java/com/thoughtworks/go/remote/AgentRemoteInvokerServiceExporter.java
### 代码内容：
package com.thoughtworks.go.remote;

import com.thoughtworks.go.domain.JobIdentifier;
import com.thoughtworks.go.domain.JobResult;
import com.thoughtworks.go.domain.JobState;
import com.thoughtworks.go.server.service.AgentRuntimeInfo;
import org.slf4j.LoggerFactory;
import org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter;
import org.springframework.remoting.support.RemoteInvocation;
import org.springframework.remoting.support.RemoteInvocationResult;
import org.springframework.web.util.NestedServletException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Objects;
import java.util.Set;

import static java.lang.String.format;
import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
import static javax.servlet.http.HttpServletResponse.SC_FORBIDDEN;

/**
 * Custom invoker service exporter that validates UUID authorization on agent requests. This prevents compromised agents
 * (or any other attack masquerading as an authenticated agent) from acting on behalf of another agent.
 */
public class AgentRemoteInvokerServiceExporter extends HttpInvokerServiceExporter {
    private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(AgentRemoteInvokerServiceExporter.class);
    private static final Set<MethodSignature> KNOWN_METHODS_NEEDING_UUID_VALIDATION = Set.of(
            new MethodSignature("ping", AgentRuntimeInfo.class),
            new MethodSignature("getWork", AgentRuntimeInfo.class),
            new MethodSignature("reportCurrentStatus", AgentRuntimeInfo.class, JobIdentifier.class, JobState.class),
            new MethodSignature("reportCompleting", AgentRuntimeInfo.class, JobIdentifier.class, JobResult.class),
            new MethodSignature("reportCompleted", AgentRuntimeInfo.class, JobIdentifier.class, JobResult.class),
            new MethodSignature("isIgnored", AgentRuntimeInfo.class, JobIdentifier.class),
            new MethodSignature("getCookie", AgentRuntimeInfo.class)
    );

    @Override
    public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        try {
            RemoteInvocation invocation = readRemoteInvocation(request);

            if (!authorized(request, response, invocation)) {
                return;
            }

            RemoteInvocationResult result = invokeAndCreateResult(invocation, getProxy());
            writeRemoteInvocationResult(request, response, result);
        } catch (ClassNotFoundException ex) {
            throw new NestedServletException("Class not found during deserialization", ex);
        }
    }

    /**
     * Verifies that the agent UUID from the deserialized payload matches the UUID permitted by the agent authentication
     * filter.
     *
     * @param request    the {@link HttpServletRequest}
     * @param response   the {@link HttpServletResponse}
     * @param invocation the deserialized {@link RemoteInvocation} payload
     * @return true if authorized; false otherwise
     * @throws IOException on error while writing a response back to the client
     */
    private boolean authorized(HttpServletRequest request, HttpServletResponse response, RemoteInvocation invocation) throws IOException {
        final String uuid = request.getHeader("X-Agent-GUID"); // should never be null since we passed the auth filter
        final MethodSignature current = new MethodSignature(invocation);

        LOG.debug(format("Checking authorization for agent [%s] on invocation: %s", uuid, invocation));

        if (KNOWN_METHODS_NEEDING_UUID_VALIDATION.contains(current)) {
            final String askingFor = AgentUUID.fromRuntimeInfo0(invocation.getArguments());

            if (!uuid.equals(askingFor)) {
                LOG.error(format("DENYING REQUEST: Agent [%s] is attempting a request on behalf of [%s]: %s", uuid, askingFor, invocation));
                reject(response, SC_FORBIDDEN, "Not allowing request on behalf of another agent");
                return false;
            }
        } else {
            LOG.error(format("DENYING REQUEST: Agent [%s] is requesting an unknown method invocation: %s", uuid, invocation));
            reject(response, SC_BAD_REQUEST, format("Unknown invocation: %s", invocation));
            return false;
        }

        LOG.debug(format("ALLOWING REQUEST: Agent [%s] is authorized to invoke: %s", uuid, invocation));
        return true;
    }

    /**
     * Returns a plaintext error response back to the agent on failure
     *
     * @param response   the {@link HttpServletResponse}
     * @param statusCode the HTTP status code
     * @param msg        the error message
     * @throws IOException on error while writing a response back to the client
     */
    private void reject(HttpServletResponse response, int statusCode, String msg) throws IOException {
        response.setStatus(statusCode);
        response.setContentType("text/plain");
        final PrintWriter writer = response.getWriter();
        writer.println(msg);
        writer.flush();
        writer.close();
    }

    /**
     * Just a container class to hold functions to extract the agent UUID from deserialized payloads
     */
    private static class AgentUUID {
        private static String fromRuntimeInfo0(Object[] args) {
            return ((AgentRuntimeInfo) args[0]).getIdentifier().getUuid();
        }
    }

    /**
     * Helper class to make RMI method matching easier
     */
    private static class MethodSignature {
        private final String name;
        private final Class<?>[] paramTypes;

        private MethodSignature(RemoteInvocation invocation) {
            this(invocation.getMethodName(), invocation.getParameterTypes());
        }

        private MethodSignature(String name, Class<?>... paramTypes) {
            this.name = name;
            this.paramTypes = paramTypes;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            MethodSignature that = (MethodSignature) o;
            return Objects.equals(name, that.name) && Arrays.equals(paramTypes, that.paramTypes);
        }

        @Override
        public int hashCode() {
            int result = Objects.hash(name);
            result = 31 * result + Arrays.hashCode(paramTypes);
            return result;
        }
    }
}

Output:
【漏洞类型】安全配置默认关闭
【严重性】Medium
【漏洞摘要】原始代码中的RMI端点默认是启用的，这意味着任何未经授权的客户端都能够通过该端点进行远程调用。这可能导致安全问题，例如拒绝服务攻击、数据泄露或其他恶意操作。根本原因在于代码中没有提供机制来默认禁用该端点。
【关键代码模式】
- `AgentRemoteInvokerServiceExporter`类
- `handleRequest`方法
- `readRemoteInvocation`方法
- `authorized`方法
- `reject`方法
- `MethodSignature`类
【修复方法说明】修复方法通过在构造函数中引入`SystemEnvironment`对象，并在`handleRequest`方法中添加`rejectRMI`方法来检查是否应该禁用RMI端点。如果`gocd.agent.remoting.legacy=true`不在`-Dgocd.agent.extra.properties`中，则默认禁用RMI端点。这样可以确保RMI端点不会在未明确启用的情况下被利用。