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：
impl/src/main/java/org/glassfish/soteria/mechanisms/jaspic/DefaultAuthConfigProvider.java
### 代码内容：
package org.glassfish.soteria.mechanisms.jaspic;

import java.util.Map;
import java.util.function.Supplier;

import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.message.AuthException;
import javax.security.auth.message.config.AuthConfigFactory;
import javax.security.auth.message.config.AuthConfigProvider;
import javax.security.auth.message.config.ClientAuthConfig;
import javax.security.auth.message.config.ServerAuthConfig;
import javax.security.auth.message.config.ServerAuthContext;
import javax.security.auth.message.module.ServerAuthModule;

/**
 * This class functions as a kind of factory-factory for {@link ServerAuthConfig} instances, which are by themselves factories
 * for {@link ServerAuthContext} instances, which are delegates for the actual {@link ServerAuthModule} (SAM) that we're after.
 *
 * @author Arjan Tijms
 */
public class DefaultAuthConfigProvider implements AuthConfigProvider {

    private static final String CALLBACK_HANDLER_PROPERTY_NAME = "authconfigprovider.client.callbackhandler";

    private Map<String, String> providerProperties;
    private Supplier<ServerAuthModule> serverAuthModuleSupplier;

    public DefaultAuthConfigProvider(Supplier<ServerAuthModule> serverAuthModuleSupplier) {
        this.serverAuthModuleSupplier = serverAuthModuleSupplier;
    }

    /**
     * Constructor with signature and implementation that's required by API.
     *
     * @param properties provider properties
     * @param factory the auth config factory
     */
    public DefaultAuthConfigProvider(Map<String, String> properties, AuthConfigFactory factory) {
        this.providerProperties = properties;

        // API requires self registration if factory is provided. Not clear
        // where the "layer" (2nd parameter)
        // and especially "appContext" (3rd parameter) values have to come from
        // at this place.
        if (factory != null) {
            // If this method ever gets called, it may throw a SecurityException.
            // Don't bother with a PrivilegedAction as we don't expect to ever be
            // constructed this way.
            factory.registerConfigProvider(this, null, null, "Auto registration");
        }
    }

    /**
     * The actual factory method that creates the factory used to eventually obtain the delegate for a SAM.
     */
    @Override
    public ServerAuthConfig getServerAuthConfig(String layer, String appContext, CallbackHandler handler) throws AuthException,
        SecurityException {
        return new DefaultServerAuthConfig(layer, appContext, handler == null ? createDefaultCallbackHandler() : handler,
            providerProperties, serverAuthModuleSupplier);
    }

    @Override
    public ClientAuthConfig getClientAuthConfig(String layer, String appContext, CallbackHandler handler) throws AuthException,
        SecurityException {
        return null;
    }

    @Override
    public void refresh() {
    }

    /**
     * Creates a default callback handler via the system property "authconfigprovider.client.callbackhandler", as seemingly
     * required by the API (API uses wording "may" create default handler). TODO: Isn't
     * "authconfigprovider.client.callbackhandler" JBoss specific?
     *
     * @return
     * @throws AuthException
     */
    private CallbackHandler createDefaultCallbackHandler() throws AuthException {
        String callBackClassName = System.getProperty(CALLBACK_HANDLER_PROPERTY_NAME);

        if (callBackClassName == null) {
            throw new AuthException("No default handler set via system property: " + CALLBACK_HANDLER_PROPERTY_NAME);
        }

        try {
            return (CallbackHandler) Thread.currentThread().getContextClassLoader().loadClass(callBackClassName).newInstance();
        } catch (Exception e) {
            throw new AuthException(e.getMessage());
        }
    }

}

## 内容2
### 文件路径：
impl/src/main/java/org/glassfish/soteria/mechanisms/jaspic/DefaultServerAuthConfig.java
### 代码内容：
package org.glassfish.soteria.mechanisms.jaspic;

import java.util.Map;
import java.util.function.Supplier;

import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.message.AuthException;
import javax.security.auth.message.MessageInfo;
import javax.security.auth.message.config.ServerAuthConfig;
import javax.security.auth.message.config.ServerAuthContext;
import javax.security.auth.message.module.ServerAuthModule;

/**
 * This class functions as a kind of factory for {@link ServerAuthContext} instances, which are delegates for the actual
 * {@link ServerAuthModule} (SAM) that we're after.
 *
 * @author Arjan Tijms
 */
public class DefaultServerAuthConfig implements ServerAuthConfig {

    private String layer;
    private String appContext;
    private CallbackHandler handler;
    private Map<String, String> providerProperties;
    private Supplier<ServerAuthModule> serverAuthModuleSupplier;

    public DefaultServerAuthConfig(String layer, String appContext, CallbackHandler handler,
        Map<String, String> providerProperties, Supplier<ServerAuthModule> serverAuthModuleSupplier) {
        this.layer = layer;
        this.appContext = appContext;
        this.handler = handler;
        this.providerProperties = providerProperties;
        this.serverAuthModuleSupplier = serverAuthModuleSupplier;
    }

    @Override
    public ServerAuthContext getAuthContext(String authContextID, Subject serviceSubject,
        @SuppressWarnings("rawtypes") Map properties) throws AuthException {
        return new DefaultServerAuthContext(handler, serverAuthModuleSupplier);
    }

    // ### The methods below mostly just return what has been passed into the
    // constructor.
    // ### In practice they don't seem to be called

    @Override
    public String getMessageLayer() {
        return layer;
    }

    /**
     * It's not entirely clear what the difference is between the "application context identifier" (appContext) and the
     * "authentication context identifier" (authContext). In early iterations of the specification, authContext was called
     * "operation" and instead of the MessageInfo it was obtained by something called an "authParam".
     */
    @Override
    public String getAuthContextID(MessageInfo messageInfo) {
        return appContext;
    }

    @Override
    public String getAppContext() {
        return appContext;
    }

    @Override
    public void refresh() {
    }

    @Override
    public boolean isProtected() {
        return false;
    }

    public Map<String, String> getProviderProperties() {
        return providerProperties;
    }

}

## 内容3
### 文件路径：
impl/src/main/java/org/glassfish/soteria/mechanisms/jaspic/DefaultServerAuthContext.java
### 代码内容：
package org.glassfish.soteria.mechanisms.jaspic;

import java.util.Collections;
import java.util.function.Supplier;

import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.message.AuthException;
import javax.security.auth.message.AuthStatus;
import javax.security.auth.message.MessageInfo;
import javax.security.auth.message.ServerAuth;
import javax.security.auth.message.config.ServerAuthContext;
import javax.security.auth.message.module.ServerAuthModule;

/**
 * The Server Authentication Context is an extra (required) indirection between the Application Server and the actual Server
 * Authentication Module (SAM). This can be used to encapsulate any number of SAMs and either select one at run-time, invoke
 * them all in order, etc.
 *

 * Since this simple example only has a single SAM, we delegate directly to that one. Note that this {@link ServerAuthContext}
 * and the {@link ServerAuthModule} (SAM) share a common base interface: {@link ServerAuth}.
 *
 * @author Arjan Tijms
 */
public class DefaultServerAuthContext implements ServerAuthContext {

    private final ServerAuthModule serverAuthModule;

    public DefaultServerAuthContext(CallbackHandler handler, Supplier<ServerAuthModule> serverAuthModuleSupplier) throws AuthException {
        this.serverAuthModule = serverAuthModuleSupplier.get();
        serverAuthModule.initialize(null, null, handler, Collections.<String, String> emptyMap());
    }

    @Override
    public AuthStatus validateRequest(MessageInfo messageInfo, Subject clientSubject, Subject serviceSubject)
        throws AuthException {
        return serverAuthModule.validateRequest(messageInfo, clientSubject, serviceSubject);
    }

    @Override
    public AuthStatus secureResponse(MessageInfo messageInfo, Subject serviceSubject) throws AuthException {
        return serverAuthModule.secureResponse(messageInfo, serviceSubject);
    }

    @Override
    public void cleanSubject(MessageInfo messageInfo, Subject subject) throws AuthException {
        serverAuthModule.cleanSubject(messageInfo, subject);
    }

}

## 内容4
### 文件路径：
impl/src/main/java/org/glassfish/soteria/mechanisms/jaspic/Jaspic.java
### 代码内容：
package org.glassfish.soteria.mechanisms.jaspic;

import static java.lang.Boolean.TRUE;
import static org.glassfish.soteria.Utils.isEmpty;

import java.io.IOException;
import java.security.AccessController;
import java.security.Principal;
import java.security.PrivilegedAction;
import java.util.List;
import java.util.Set;
import java.util.function.Supplier;

import javax.security.enterprise.AuthenticationStatus;
import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.auth.message.AuthStatus;
import javax.security.auth.message.MessageInfo;
import javax.security.auth.message.callback.CallerPrincipalCallback;
import javax.security.auth.message.callback.GroupPrincipalCallback;
import javax.security.auth.message.config.AuthConfigFactory;
import javax.security.auth.message.module.ServerAuthModule;
import javax.security.enterprise.authentication.mechanism.http.AuthenticationParameters;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.glassfish.soteria.cdi.spi.CDIPerRequestInitializer;

/**
 * A set of utility methods for using the JASPIC API
 *
 * @author Arjan Tijms
 *
 */
public final class Jaspic {

	public static final String IS_AUTHENTICATION = "org.glassfish.soteria.security.message.request.authentication";
	public static final String IS_AUTHENTICATION_FROM_FILTER = "org.glassfish.soteria.security.message.request.authenticationFromFilter";
	public static final String IS_SECURE_RESPONSE = "org.glassfish.soteria.security.message.request.secureResponse";
	public static final String IS_REFRESH = "org.glassfish.soteria.security.message.request.isRefresh";
	public static final String DID_AUTHENTICATION = "org.glassfish.soteria.security.message.request.didAuthentication";

	public static final String AUTH_PARAMS = "org.glassfish.soteria.security.message.request.authParams";

	public static final String LOGGEDIN_USERNAME = "org.glassfish.soteria.security.message.loggedin.username";
	public static final String LOGGEDIN_ROLES = "org.glassfish.soteria.security.message.loggedin.roles";
	public static final String LAST_AUTH_STATUS = "org.glassfish.soteria.security.message.authStatus";

	public static final String CONTEXT_REGISTRATION_ID = "org.glassfish.soteria.security.message.registrationId";

	// Key in the MessageInfo Map that when present AND set to true indicated a protected resource is being accessed.
	// When the resource is not protected, GlassFish omits the key altogether. WebSphere does insert the key and sets
	// it to false.
	private static final String IS_MANDATORY = "javax.security.auth.message.MessagePolicy.isMandatory";
	private static final String REGISTER_SESSION = "javax.servlet.http.registerSession";

	private Jaspic() {}

	public static boolean authenticate(HttpServletRequest request, HttpServletResponse response, AuthenticationParameters authParameters) {
		try {
		    // JASPIC 1.1 does not have any way to distinguish between a
		    // SAM called at start of a request or following request#authenticate.
		    // See https://java.net/jira/browse/JASPIC_SPEC-5

		    // We now add this as a request attribute instead, but should better
		    // be the MessageInfo map
			request.setAttribute(IS_AUTHENTICATION, true);
			if (authParameters != null) {
				request.setAttribute(AUTH_PARAMS, authParameters);
			}
			return request.authenticate(response);
		} catch (ServletException | IOException e) {
			throw new IllegalArgumentException(e);
		} finally {
			request.removeAttribute(IS_AUTHENTICATION);
			if (authParameters != null) {
				request.removeAttribute(AUTH_PARAMS);
			}
		}
	}

	public static AuthenticationParameters getAuthParameters(HttpServletRequest request) {
		AuthenticationParameters authParameters = (AuthenticationParameters) request.getAttribute(AUTH_PARAMS);
		if (authParameters == null) {
			authParameters = new AuthenticationParameters();
		}

		return authParameters;
	}

	public static void logout(HttpServletRequest request, HttpServletResponse response) {
		try {
			request.logout();
			// Need to invalidate the session to really logout - request.logout only logs the user out for the *current request*
			// This is nearly always unwanted. Although the SAM's cleanSubject method can clear any session data too if needed,
			// invalidating the session is pretty much the safest way.
			request.getSession().invalidate();
		} catch (ServletException e) {
			throw new IllegalArgumentException(e);
		}
	}

	public static void cleanSubject(Subject subject) {
	    if (subject != null) {
	        AccessController.doPrivileged(new PrivilegedAction<Void>() {
	            public Void run() {
	                subject.getPrincipals().clear();
	                return null;
	            }
	        });
	    }
	}

	public static boolean isRegisterSession(MessageInfo messageInfo) {
		return Boolean.valueOf((String)messageInfo.getMap().get(REGISTER_SESSION));
	}

	public static boolean isProtectedResource(MessageInfo messageInfo) {
		return Boolean.valueOf((String) messageInfo.getMap().get(IS_MANDATORY));
	}

	@SuppressWarnings("unchecked")
	public static void setRegisterSession(MessageInfo messageInfo, String username, Set<String> roles) {
		messageInfo.getMap().put("javax.servlet.http.registerSession", TRUE.toString());

		HttpServletRequest request = (HttpServletRequest) messageInfo.getRequestMessage();
		request.setAttribute(LOGGEDIN_USERNAME, username);
		// TODO: check for existing roles and add
		request.setAttribute(LOGGEDIN_ROLES, roles);
	}

	public static boolean isAuthenticationRequest(HttpServletRequest request) {
		return TRUE.equals(request.getAttribute(IS_AUTHENTICATION));
	}

    public static void notifyContainerAboutLogin(Subject clientSubject, CallbackHandler handler, Principal callerPrincipal, Set<String> groups) {
        handleCallbacks(clientSubject, handler, new CallerPrincipalCallback(clientSubject, callerPrincipal), groups);
    }

    public static void notifyContainerAboutLogin(Subject clientSubject, CallbackHandler handler, String callerPrincipalName, Set<String> groups) {
        handleCallbacks(clientSubject, handler, new CallerPrincipalCallback(clientSubject, callerPrincipalName), groups);
    }

	private static void handleCallbacks(Subject clientSubject, CallbackHandler handler, CallerPrincipalCallback callerPrincipalCallback, Set<String> groups) {
	    if (clientSubject == null) {
	        throw new IllegalArgumentException("Null clientSubject!");
	    }
	    if (handler == null) {
	        throw new IllegalArgumentException("Null callback handler!");
	    }
	    try {
	        if (groups == null || isEmpty(groups) ||
	                (callerPrincipalCallback.getPrincipal() == null && callerPrincipalCallback.getName() == null)) {
	            // don't handle groups if null/empty or if caller is null
	            handler.handle(new Callback[] {
	                    callerPrincipalCallback });
	        } else {
	            handler.handle(new Callback[] {
	                    callerPrincipalCallback,
	                    new GroupPrincipalCallback(clientSubject, groups.toArray(new String[groups.size()])) });
	        }
	    } catch (IOException | UnsupportedCallbackException e) {
	        // Should not happen
	        throw new IllegalStateException(e);
	    }
	}

	public static void setLastAuthenticationStatus(HttpServletRequest request, AuthenticationStatus status) {
        request.setAttribute(LAST_AUTH_STATUS, status);
    }

	public static AuthenticationStatus getLastAuthenticationStatus(HttpServletRequest request) {
		return (AuthenticationStatus) request.getAttribute(LAST_AUTH_STATUS);
	}

	public static AuthStatus fromAuthenticationStatus(AuthenticationStatus authenticationStatus) {
	    switch (authenticationStatus) {
	        case NOT_DONE: case SUCCESS:
	            return AuthStatus.SUCCESS;
	        case SEND_FAILURE:
	            return AuthStatus.SEND_FAILURE;
	        case SEND_CONTINUE:
	            return AuthStatus.SEND_CONTINUE;
	        default:
	            throw new IllegalStateException("Unhandled status:" + authenticationStatus.name());
	    }
	}

	/**
	 * Should be called when the callback handler is used with the intention that an actual
	 * user is going to be authenticated (as opposed to using the handler for the "do nothing" protocol
	 * which uses the unauthenticated identity).
	 *
	 * @param request The involved HTTP servlet request.
	 *
	 */
	public static void setDidAuthentication(HttpServletRequest request) {
		request.setAttribute(DID_AUTHENTICATION, TRUE);
	}

	/**
	 * Gets the app context ID from the servlet context.
	 *
	 *

	 * The app context ID is the ID that JASPIC associates with the given application.
	 * In this case that given application is the web application corresponding to the
	 * ServletContext.
	 *
	 * @param context the servlet context for which to obtain the JASPIC app context ID
	 * @return the app context ID for the web application corresponding to the given context
	 */
	public static String getAppContextID(ServletContext context) {
		return context.getVirtualServerName() + " " + context.getContextPath();
	}

	/**
	 * Registers a server auth module as the one and only module for the application corresponding to
	 * the given servlet context.
	 *
	 *

	 * This will override any other modules that have already been registered, either via proprietary
	 * means or using the standard API.
	 *
	 * @param cdiPerRequestInitializer A {@link CDIPerRequestInitializer} to pass to the {@link ServerAuthModule}
	 * @param servletContext the context of the app for which the module is registered
	 * @return A String identifier assigned by an underlying factory corresponding to an underlying factory-factory-factory registration
	 */
	public static String registerServerAuthModule(CDIPerRequestInitializer cdiPerRequestInitializer, ServletContext servletContext) {

	    // Register the factory-factory-factory for the SAM
	    String registrationId = AccessController.doPrivileged(new PrivilegedAction<String>() {
	        public String run() {
	            return AuthConfigFactory.getFactory().registerConfigProvider(
	                    new DefaultAuthConfigProvider(() -> new HttpBridgeServerAuthModule(cdiPerRequestInitializer)),
	                    "HttpServlet",
	                    getAppContextID(servletContext),
	                    "Default single SAM authentication config provider");
	        }
	    });

		// Remember the registration ID returned by the factory, so we can unregister the JASPIC module when the web module
		// is undeployed. JASPIC being the low level API that it is won't do this automatically.
		servletContext.setAttribute(CONTEXT_REGISTRATION_ID, registrationId);

		return registrationId;
	}

	/**
	 * Deregisters the server auth module (and encompassing wrappers/factories) that was previously registered via a call
	 * to registerServerAuthModule.
	 *
	 * @param servletContext the context of the app for which the module is deregistered
	 */
	public static void deregisterServerAuthModule(ServletContext servletContext) {
		String registrationId = (String) servletContext.getAttribute(CONTEXT_REGISTRATION_ID);
		if (!isEmpty(registrationId)) {
			AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
			    public Boolean run() {
			        return AuthConfigFactory.getFactory().removeRegistration(registrationId);
			    }
			});
		}
	}

}

## 内容5
### 文件路径：
impl/src/main/java/org/glassfish/soteria/servlet/SamRegistrationInstaller.java
### 代码内容：
package org.glassfish.soteria.servlet;

import static java.util.logging.Level.FINEST;
import static java.util.logging.Level.INFO;
import static org.glassfish.soteria.Utils.isEmpty;
import static org.glassfish.soteria.mechanisms.jaspic.Jaspic.deregisterServerAuthModule;
import static org.glassfish.soteria.mechanisms.jaspic.Jaspic.registerServerAuthModule;

import java.util.Set;
import java.util.logging.Logger;

import javax.enterprise.inject.spi.CDI;
import javax.servlet.ServletContainerInitializer;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletException;

import org.glassfish.soteria.cdi.CdiExtension;
import org.glassfish.soteria.cdi.spi.CDIPerRequestInitializer;
import org.glassfish.soteria.cdi.spi.impl.LibertyCDIPerRequestInitializer;
import org.glassfish.soteria.mechanisms.jaspic.HttpBridgeServerAuthModule;
import org.glassfish.soteria.mechanisms.jaspic.Jaspic;

/**
 * If an HttpAuthenticationMechanism implementation has been found on the classpath, this
 * initializer installs a bridge SAM that delegates the validateRequest, secureResponse and
 * cleanSubject methods from the SAM to the HttpAuthenticationMechanism.
 *
 *

 * The bridge SAM uses CDI.current() to obtain the HttpAuthenticationMechanism, therefore
 * fully enabling CDI in the implementation of that interface.
 *
 * @author Arjan Tijms
 *
 */
public class SamRegistrationInstaller implements ServletContainerInitializer, ServletContextListener {

    private static final Logger logger =  Logger.getLogger(SamRegistrationInstaller.class.getName());

    @Override
    public void onStartup(Set<Class<?>> c, ServletContext ctx) throws ServletException {

        // Obtain a reference to the CdiExtension that was used to see if
        // there's an enabled bean

        CDI<Object> cdi;
        try {
            cdi = CDI.current();

            if (logger.isLoggable(INFO)) {
                String version = getClass().getPackage().getImplementationVersion();
                logger.log(INFO, "Initializing Soteria {0} for context ''{1}''", new Object[]{version, ctx.getContextPath()});
            }

        } catch (IllegalStateException e) {
            // On GlassFish 4.1.1/Payara 4.1.1.161 CDI is not initialized (org.jboss.weld.Container#initialize is not called),
            // and calling CDI.current() will throw an exception. It's no use to continue then.
            // TODO: Do we need to find out *why* the default module does not have CDI initialized?
            logger.log(FINEST, "CDI not available for app context id: " + Jaspic.getAppContextID(ctx), e);

            return;
        }

        CdiExtension cdiExtension = cdi.select(CdiExtension.class).get();

        if (cdiExtension.isHttpAuthenticationMechanismFound()) {

            // A SAM must be registered at this point, since the programmatically added
            // Listener is for some reason restricted (not allow) from calling
            // getVirtualServerName. At this point we're still allowed to call this.

            // TODO: Ask the Servlet EG to address this? Is there any ground for this restriction???

            CDIPerRequestInitializer cdiPerRequestInitializer = null;

            if (!isEmpty(System.getProperty("wlp.server.name"))) {
                // Hardcode server check for now. TODO: design/implement proper service loader/SPI for this
                cdiPerRequestInitializer = new LibertyCDIPerRequestInitializer();
                logger.log(INFO, "Running on Liberty - installing CDI request scope activator");
            }

            registerServerAuthModule(cdiPerRequestInitializer, ctx);

            // Add a listener so we can process the context destroyed event, which is needed
            // to de-register the SAM correctly.
            ctx.addListener(this);
        }

    }

    @Override
    public void contextInitialized(ServletContextEvent sce) {
       // noop
    }

    @Override
    public void contextDestroyed(ServletContextEvent sce) {
        deregisterServerAuthModule(sce.getServletContext());
    }

}


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：
lib/faye/protocol/server.rb
### 代码内容：
module Faye
  class Server

    autoload :Socket, File.join(ROOT, 'faye', 'protocol', 'socket')

    include Logging
    include Extensible

    META_METHODS = %w[handshake connect disconnect subscribe unsubscribe]

    attr_reader :engine

    def initialize(options = {})
      @options    = options || {}
      engine_opts = @options[:engine] || {}
      engine_opts[:timeout] = @options[:timeout]
      @engine     = Faye::Engine.get(engine_opts)

      info('Created new server: ?', @options)
    end

    def close
      @engine.close
    end

    def open_socket(client_id, socket, env)
      return unless client_id and socket
      @engine.open_socket(client_id, Socket.new(self, socket, env))
    end

    def close_socket(client_id, close = true)
      @engine.flush_connection(client_id, close)
    end

    def process(messages, env, &callback)
      local    = env.nil?
      messages = [messages].flatten
      info('Processing messages: ? (local: ?)', messages, local)

      return callback.call([]) if messages.size == 0
      processed, responses = 0, []

      gather_replies = lambda do |replies|
        responses.concat(replies)
        processed += 1
        responses.compact!
        info('Returning replies: ?', responses)
        callback.call(responses) if processed == messages.size
      end

      handle_reply = lambda do |replies|
        extended, expected = 0, replies.size
        gather_replies.call(replies) if expected == 0

        replies.each_with_index do |reply, i|
          debug('Processing reply: ?', reply)
          pipe_through_extensions(:outgoing, reply, env) do |message|
            replies[i] = message
            extended  += 1
            gather_replies.call(replies) if extended == expected
          end
        end
      end

      messages.each do |message|
        pipe_through_extensions(:incoming, message, env) do |piped_message|
          handle(piped_message, local, &handle_reply)
        end
      end
    end

    def make_response(message)
      response = {}

      response['id']       = message['id']       if message['id']
      response['clientId'] = message['clientId'] if message['clientId']
      response['channel']  = message['channel']  if message['channel']
      response['error']    = message['error']    if message['error']

      response['successful'] = !response['error']
      response
    end

    def handle(message, local = false, &callback)
      return callback.call([]) if !message
      info('Handling message: ? (local: ?)', message, local)

      channel_name = message['channel']
      error        = message['error']

      return handle_meta(message, local, &callback) if Channel.meta?(channel_name)

      if Grammar::CHANNEL_NAME !~ channel_name
        error = Faye::Error.channel_invalid(channel_name)
      end

      if message['data'].nil?
        error = Faye::Error.parameter_missing('data')
      end

      @engine.publish(message) unless error

      response = make_response(message)
      response['error'] = error if error
      response['successful'] = !response['error']
      callback.call([response])
    end

    def handle_meta(message, local, &callback)
      method = Channel.parse(message['channel'])[1]

      unless META_METHODS.include?(method)
        response = make_response(message)
        response['error'] = Faye::Error.channel_forbidden(message['channel'])
        response['successful'] = false
        return callback.call([response])
      end

      __send__(method, message, local) do |responses|
        responses = [responses].flatten
        responses.each { |r| advize(r, message['connectionType']) }
        callback.call(responses)
      end
    end

    def advize(response, connection_type)
      return unless [Channel::HANDSHAKE, Channel::CONNECT].include?(response['channel'])

      if connection_type == 'eventsource'
        interval = (@engine.timeout * 1000).floor
        timeout  = 0
      else
        interval = (@engine.interval * 1000).floor
        timeout  = (@engine.timeout * 1000).floor
      end

      advice = response['advice'] ||= {}
      if response['error']
        advice['reconnect'] ||= 'handshake'
      else
        advice['reconnect'] ||= 'retry'
        advice['interval']  ||= interval
        advice['timeout']   ||= timeout
      end
    end

    # MUST contain  * version
    #               * supportedConnectionTypes
    # MAY contain   * minimumVersion
    #               * ext
    #               * id
    def handshake(message, local = false, &callback)
      response = make_response(message)
      response['version'] = BAYEUX_VERSION

      response['error'] = Error.parameter_missing('version') if message['version'].nil?

      client_conns = message['supportedConnectionTypes']

      response['supportedConnectionTypes'] = CONNECTION_TYPES

      if client_conns
        common_conns = client_conns.select { |c| CONNECTION_TYPES.include?(c) }
        response['error'] = Error.conntype_mismatch(*client_conns) if common_conns.empty?
      else
        response['error'] = Error.parameter_missing('supportedConnectionTypes')
      end

      response['successful'] = response['error'].nil?
      return callback.call(response) unless response['successful']

      @engine.create_client do |client_id|
        response['clientId'] = client_id
        callback.call(response)
      end
    end

    # MUST contain  * clientId
    #               * connectionType
    # MAY contain   * ext
    #               * id
    def connect(message, local = false, &callback)
      response        = make_response(message)
      client_id       = message['clientId']
      connection_type = message['connectionType']

      @engine.client_exists(client_id) do |exists|
        response['error'] = Error.client_unknown(client_id) unless exists
        response['error'] = Error.parameter_missing('clientId') if client_id.nil?

        unless CONNECTION_TYPES.include?(connection_type)
          response['error'] = Error.conntype_mismatch(connection_type)
        end

        response['error'] = Error.parameter_missing('connectionType') if connection_type.nil?

        response['successful'] = response['error'].nil?

        if !response['successful']
          response.delete('clientId')
          next callback.call(response)
        end

        if message['connectionType'] == 'eventsource'
          message['advice'] ||= {}
          message['advice']['timeout'] = 0
        end

        @engine.connect(response['clientId'], message['advice']) do |events|
          callback.call([response] + events)
        end
      end
    end

    # MUST contain  * clientId
    # MAY contain   * ext
    #               * id
    def disconnect(message, local = false, &callback)
      response   = make_response(message)
      client_id  = message['clientId']

      @engine.client_exists(client_id) do |exists|
        response['error'] = Error.client_unknown(client_id) unless exists
        response['error'] = Error.parameter_missing('clientId') if client_id.nil?

        response['successful'] = response['error'].nil?
        response.delete('clientId') unless response['successful']

        @engine.destroy_client(client_id) if response['successful']
        callback.call(response)
      end
    end

    # MUST contain  * clientId
    #               * subscription
    # MAY contain   * ext
    #               * id
    def subscribe(message, local = false, &callback)
      response     = make_response(message)
      client_id    = message['clientId']
      subscription = [message['subscription']].flatten

      @engine.client_exists(client_id) do |exists|
        response['error'] = Error.client_unknown(client_id) unless exists
        response['error'] = Error.parameter_missing('clientId') if client_id.nil?
        response['error'] = Error.parameter_missing('subscription') if message['subscription'].nil?

        response['subscription'] = message['subscription'] || []

        subscription.each do |channel|
          next if response['error']
          response['error'] = Error.channel_forbidden(channel) unless local or Channel.subscribable?(channel)
          response['error'] = Error.channel_invalid(channel) unless Channel.valid?(channel)

          next if response['error']
          @engine.subscribe(client_id, channel)
        end

        response['successful'] = response['error'].nil?
        callback.call(response)
      end
    end

    # MUST contain  * clientId
    #               * subscription
    # MAY contain   * ext
    #               * id
    def unsubscribe(message, local = false, &callback)
      response     = make_response(message)
      client_id    = message['clientId']
      subscription = [message['subscription']].flatten

      @engine.client_exists(client_id) do |exists|
        response['error'] = Error.client_unknown(client_id) unless exists
        response['error'] = Error.parameter_missing('clientId') if client_id.nil?
        response['error'] = Error.parameter_missing('subscription') if message['subscription'].nil?

        response['subscription'] = message['subscription'] || []

        subscription.each do |channel|
          next if response['error']
          response['error'] = Error.channel_forbidden(channel) unless local or Channel.subscribable?(channel)
          response['error'] = Error.channel_invalid(channel) unless Channel.valid?(channel)

          next if response['error']
          @engine.unsubscribe(client_id, channel)
        end

        response['successful'] = response['error'].nil?
        callback.call(response)
      end
    end

  end
end

## 内容2
### 文件路径：
spec/javascript/server/extensions_spec.js
### 代码内容：
var jstest = require("jstest").Test

var Engine = require("../../../src/engines/proxy"),
    Server = require("../../../src/protocol/server")

jstest.describe("Server extensions", function() { with(this) {
    before(function() { with(this) {
    this.engine = {}
    stub(Engine, "get").returns(engine)
    this.server = new Server()
  }})

  describe("with an incoming extension installed", function() { with(this) {
    before(function() { with(this) {
      var extension = {
        incoming: function(message, callback) {
          message.ext = {auth: "password"}
          callback(message)
        }
      }
      server.addExtension(extension)
      this.message = {channel: "/foo", data: "hello"}
    }})

    it("passes incoming messages through the extension", function() { with(this) {
      expect(engine, "publish").given({channel: "/foo", data: "hello", ext: {auth: "password"}})
      server.process(message, false, function() {})
    }})

    it("does not pass outgoing messages through the extension", function() { with(this) {
      stub(server, "handshake").yields([message])
      stub(engine, "publish")
      var response = null
      server.process({channel: "/meta/handshake"}, false, function(r) { response = r })
      assertEqual( [{channel: "/foo", data: "hello"}], response )
    }})
  }})

  describe("with an outgoing extension installed", function() { with(this) {
    before(function() { with(this) {
      var extension = {
        outgoing: function(message, callback) {
          message.ext = {auth: "password"}
          callback(message)
        }
      }
      server.addExtension(extension)
      this.message = {channel: "/foo", data: "hello"}
    }})

    it("does not pass incoming messages through the extension", function() { with(this) {
      expect(engine, "publish").given({channel: "/foo", data: "hello"})
      server.process(message, false, function() {})
    }})

    it("passes outgoing messages through the extension", function() { with(this) {
      stub(server, "handshake").yields([message])
      stub(engine, "publish")
      var response = null
      server.process({channel: "/meta/handshake"}, false, function(r) { response = r })
      assertEqual( [{channel: "/foo", data: "hello", ext: {auth: "password"}}], response )
    }})
  }})
}})

## 内容3
### 文件路径：
spec/ruby/server/extensions_spec.rb
### 代码内容：
require "spec_helper"

describe "server extensions" do
  let(:engine) do
    engine = double "engine"
    engine.stub(:interval).and_return(0)
    engine.stub(:timeout).and_return(60)
    engine
  end

  let(:server)  { Faye::Server.new }
  let(:message) { {"channel" => "/foo", "data" => "hello"} }

  before do
    Faye::Engine.stub(:get).and_return engine
  end

  describe "with an incoming extension installed" do
    before do
      extension = Class.new do
        def incoming(message, callback)
          message["ext"] = {"auth" => "password"}
          callback.call(message)
        end
      end
      server.add_extension(extension.new)
    end

    it "passes incoming messages through the extension" do
      engine.should_receive(:publish).with({"channel" => "/foo", "data" => "hello", "ext" => {"auth" => "password"}})
      server.process(message, false) {}
    end

    it "does not pass outgoing messages through the extension" do
      server.stub(:handshake).and_yield(message)
      engine.stub(:publish)
      response = nil
      server.process({"channel" => "/meta/handshake"}, false) { |r| response = r }
      response.should == [{"channel" => "/foo", "data" => "hello"}]
    end
  end

  describe "with an outgoing extension installed" do
    before do
      extension = Class.new do
        def outgoing(message, callback)
          message["ext"] = {"auth" => "password"}
          callback.call(message)
        end
      end
      server.add_extension(extension.new)
    end

    it "does not pass incoming messages through the extension" do
      engine.should_receive(:publish).with({"channel" => "/foo", "data" => "hello"})
      server.process(message, false) {}
    end

    it "passes outgoing messages through the extension" do
      server.stub(:handshake).and_yield(message)
      engine.stub(:publish)
      response = nil
      server.process({"channel" => "/meta/handshake"}, false) { |r| response = r }
      response.should == [{"channel" => "/foo", "data" => "hello", "ext" => {"auth" => "password"}}]
    end
  end
end

## 内容4
### 文件路径：
src/protocol/server.js
### 代码内容：
'use strict';

var Class      = require('../util/class'),
    array      = require('../util/array'),
    extend     = require('../util/extend'),
    constants  = require('../util/constants'),
    Logging    = require('../mixins/logging'),
    Engine     = require('../engines/proxy'),
    Channel    = require('./channel'),
    Error      = require('./error'),
    Extensible = require('./extensible'),
    Grammar    = require('./grammar'),
    Socket     = require('./socket');

var Server = Class({ className: 'Server',
  META_METHODS: ['handshake', 'connect', 'disconnect', 'subscribe', 'unsubscribe'],

  initialize: function(options) {
    this._options  = options || {};
    var engineOpts = this._options.engine || {};
    engineOpts.timeout = this._options.timeout;
    this._engine   = Engine.get(engineOpts);

    this.info('Created new server: ?', this._options);
  },

  close: function() {
    return this._engine.close();
  },

  openSocket: function(clientId, socket, request) {
    if (!clientId || !socket) return;
    this._engine.openSocket(clientId, new Socket(this, socket, request));
  },

  closeSocket: function(clientId, close) {
    this._engine.flushConnection(clientId, close);
  },

  process: function(messages, request, callback, context) {
    var local = (request === null);

    messages = [].concat(messages);
    this.info('Processing messages: ? (local: ?)', messages, local);

    if (messages.length === 0) return callback.call(context, []);
    var processed = 0, responses = [], self = this;

    var gatherReplies = function(replies) {
      responses = responses.concat(replies);
      processed += 1;
      if (processed < messages.length) return;

      var n = responses.length;
      while (n--) {
        if (!responses[n]) responses.splice(n,1);
      }
      self.info('Returning replies: ?', responses);
      callback.call(context, responses);
    };

    var handleReply = function(replies) {
      var extended = 0, expected = replies.length;
      if (expected === 0) gatherReplies(replies);

      for (var i = 0, n = replies.length; i < n; i++) {
        this.debug('Processing reply: ?', replies[i]);
        (function(index) {
          self.pipeThroughExtensions('outgoing', replies[index], request, function(message) {
            replies[index] = message;
            extended += 1;
            if (extended === expected) gatherReplies(replies);
          });
        })(i);
      }
    };

    for (var i = 0, n = messages.length; i < n; i++) {
      this.pipeThroughExtensions('incoming', messages[i], request, function(pipedMessage) {
        this._handle(pipedMessage, local, handleReply, this);
      }, this);
    }
  },

  _makeResponse: function(message) {
    var response = {};

    if (message.id)       response.id       = message.id;
    if (message.clientId) response.clientId = message.clientId;
    if (message.channel)  response.channel  = message.channel;
    if (message.error)    response.error    = message.error;

    response.successful = !response.error;
    return response;
  },

  _handle: function(message, local, callback, context) {
    if (!message) return callback.call(context, []);
    this.info('Handling message: ? (local: ?)', message, local);

    var channelName = message.channel,
        error       = message.error,
        response;

    if (Channel.isMeta(channelName))
      return this._handleMeta(message, local, callback, context);

    if (!Grammar.CHANNEL_NAME.test(channelName))
      error = Error.channelInvalid(channelName);

    if (message.data === undefined)
      error = Error.parameterMissing('data');

    if (!error) this._engine.publish(message);

    response = this._makeResponse(message);
    if (error) response.error = error;
    response.successful = !response.error;
    callback.call(context, [response]);
  },

  _handleMeta: function(message, local, callback, context) {
    var method = Channel.parse(message.channel)[1],
        response;

    if (array.indexOf(this.META_METHODS, method) < 0) {
      response = this._makeResponse(message);
      response.error = Error.channelForbidden(message.channel);
      response.successful = false;
      return callback.call(context, [response]);
    }

    this[method](message, local, function(responses) {
      responses = [].concat(responses);
      for (var i = 0, n = responses.length; i < n; i++) this._advize(responses[i], message.connectionType);
      callback.call(context, responses);
    }, this);
  },

  _advize: function(response, connectionType) {
    if (array.indexOf([Channel.HANDSHAKE, Channel.CONNECT], response.channel) < 0)
      return;

    var interval, timeout;
    if (connectionType === 'eventsource') {
      interval = Math.floor(this._engine.timeout * 1000);
      timeout  = 0;
    } else {
      interval = Math.floor(this._engine.interval * 1000);
      timeout  = Math.floor(this._engine.timeout * 1000);
    }

    response.advice = response.advice || {};
    if (response.error) {
      extend(response.advice, {reconnect:  'handshake'}, false);
    } else {
      extend(response.advice, {
        reconnect:  'retry',
        interval:   interval,
        timeout:    timeout
      }, false);
    }
  },

  // MUST contain  * version
  //               * supportedConnectionTypes
  // MAY contain   * minimumVersion
  //               * ext
  //               * id
  handshake: function(message, local, callback, context) {
    var response = this._makeResponse(message);
    response.version = constants.BAYEUX_VERSION;

    if (!message.version)
      response.error = Error.parameterMissing('version');

    var clientConns = message.supportedConnectionTypes,
        commonConns;

    response.supportedConnectionTypes = constants.CONNECTION_TYPES;

    if (clientConns) {
      commonConns = array.filter(clientConns, function(conn) {
        return array.indexOf(constants.CONNECTION_TYPES, conn) >= 0;
      });
      if (commonConns.length === 0)
        response.error = Error.conntypeMismatch(clientConns);
    } else {
      response.error = Error.parameterMissing('supportedConnectionTypes');
    }

    response.successful = !response.error;
    if (!response.successful) return callback.call(context, response);

    this._engine.createClient(function(clientId) {
      response.clientId = clientId;
      callback.call(context, response);
    }, this);
  },

  // MUST contain  * clientId
  //               * connectionType
  // MAY contain   * ext
  //               * id
  connect: function(message, local, callback, context) {
    var response       = this._makeResponse(message),
        clientId       = message.clientId,
        connectionType = message.connectionType;

    this._engine.clientExists(clientId, function(exists) {
      if (!exists)         response.error = Error.clientUnknown(clientId);
      if (!clientId)       response.error = Error.parameterMissing('clientId');

      if (array.indexOf(constants.CONNECTION_TYPES, connectionType) < 0)
        response.error = Error.conntypeMismatch(connectionType);

      if (!connectionType) response.error = Error.parameterMissing('connectionType');

      response.successful = !response.error;

      if (!response.successful) {
        delete response.clientId;
        return callback.call(context, response);
      }

      if (message.connectionType === 'eventsource') {
        message.advice = message.advice || {};
        message.advice.timeout = 0;
      }
      this._engine.connect(response.clientId, message.advice, function(events) {
        callback.call(context, [response].concat(events));
      });
    }, this);
  },

  // MUST contain  * clientId
  // MAY contain   * ext
  //               * id
  disconnect: function(message, local, callback, context) {
    var response = this._makeResponse(message),
        clientId = message.clientId;

    this._engine.clientExists(clientId, function(exists) {
      if (!exists)   response.error = Error.clientUnknown(clientId);
      if (!clientId) response.error = Error.parameterMissing('clientId');

      response.successful = !response.error;
      if (!response.successful) delete response.clientId;

      if (response.successful) this._engine.destroyClient(clientId);
      callback.call(context, response);
    }, this);
  },

  // MUST contain  * clientId
  //               * subscription
  // MAY contain   * ext
  //               * id
  subscribe: function(message, local, callback, context) {
    var response     = this._makeResponse(message),
        clientId     = message.clientId,
        subscription = message.subscription,
        channel;

    subscription = subscription ? [].concat(subscription) : [];

    this._engine.clientExists(clientId, function(exists) {
      if (!exists)               response.error = Error.clientUnknown(clientId);
      if (!clientId)             response.error = Error.parameterMissing('clientId');
      if (!message.subscription) response.error = Error.parameterMissing('subscription');

      response.subscription = message.subscription || [];

      for (var i = 0, n = subscription.length; i < n; i++) {
        channel = subscription[i];

        if (response.error) break;
        if (!local && !Channel.isSubscribable(channel)) response.error = Error.channelForbidden(channel);
        if (!Channel.isValid(channel))                  response.error = Error.channelInvalid(channel);

        if (response.error) break;
        this._engine.subscribe(clientId, channel);
      }

      response.successful = !response.error;
      callback.call(context, response);
    }, this);
  },

  // MUST contain  * clientId
  //               * subscription
  // MAY contain   * ext
  //               * id
  unsubscribe: function(message, local, callback, context) {
    var response     = this._makeResponse(message),
        clientId     = message.clientId,
        subscription = message.subscription,
        channel;

    subscription = subscription ? [].concat(subscription) : [];

    this._engine.clientExists(clientId, function(exists) {
      if (!exists)               response.error = Error.clientUnknown(clientId);
      if (!clientId)             response.error = Error.parameterMissing('clientId');
      if (!message.subscription) response.error = Error.parameterMissing('subscription');

      response.subscription = message.subscription || [];

      for (var i = 0, n = subscription.length; i < n; i++) {
        channel = subscription[i];

        if (response.error) break;
        if (!local && !Channel.isSubscribable(channel)) response.error = Error.channelForbidden(channel);
        if (!Channel.isValid(channel))                  response.error = Error.channelInvalid(channel);

        if (response.error) break;
        this._engine.unsubscribe(clientId, channel);
      }

      response.successful = !response.error;
      callback.call(context, response);
    }, this);
  }
});

Server.create = function(options) {
  return new Server(options);
};

extend(Server.prototype, Logging);
extend(Server.prototype, Extensible);

module.exports = Server;

Output:
【漏洞类型】安全配置错误
【严重性】High
【漏洞摘要】此代码中存在一个安全配置错误，可能导致用户添加的扩展程序被绕过。具体表现是`handle_meta`方法在处理元通道消息时，使用了一个不严格的匹配方法，允许任何以`/meta/subscribe`开头的通道名称被解析为订阅请求，这绕过了针对`/meta/subscribe`通道的访问控制扩展。根本原因在于`Channel.parse(message['channel'])[1]`方法的使用，它允许子通道（如`/meta/subscribe/x`）被误认为是订阅请求。

【关键代码模式】
- 关键函数：`handle_meta`
- 关键模式：`Channel.parse(message['channel'])[1]`
- 关键代码行：`method = Channel.parse(message['channel'])[1]`

【修复方法说明】
修复方法通过引入一个新的辅助方法`method_for`，使用严格匹配来识别元通道消息，确保只有精确匹配的通道名称（如`/meta/subscribe`）才会被处理为订阅请求。这解决了安全配置错误，防止了用户添加的扩展程序被绕过。


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：
src/main/java/org/dom4j/DocumentHelper.java
### 代码内容：
package org.dom4j;

import java.io.StringReader;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

import org.dom4j.io.SAXReader;
import org.dom4j.rule.Pattern;

import org.jaxen.VariableContext;

import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

## 内容2
### 文件路径：
src/main/java/org/dom4j/io/SAXHelper.java
### 代码内容：
package org.dom4j.io;

import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;

## 内容3
### 文件路径：
src/main/java/org/dom4j/io/SAXReader.java
### 代码内容：
package org.dom4j.io;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.Reader;
import java.io.Serializable;
import java.net.URL;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentFactory;
import org.dom4j.ElementHandler;

import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLFilter;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;

Output:
【漏洞类型】XML外部实体注入（XXE）
【严重性】High
【漏洞摘要】XML外部实体注入（XXE）是一种常见的安全漏洞，攻击者可以通过构造恶意的XML输入来攻击包含XXE漏洞的XML解析器。这可能导致拒绝服务（DoS）、信息泄露、恶意文件读取等严重后果。在原始代码中，`DocumentHelper.parseText`方法中没有禁用外部实体加载，这使得攻击者可以利用外部实体注入攻击。
【关键代码模式】关键代码模式包括使用SAXReader解析XML文本的`parseText`方法以及相关的XMLReader配置。关键词包括`parseText`、`SAXReader`、`XMLReaderFactory`、`setFeature`。
【修复方法说明】修复方法通过在`SAXReader.createDefault`方法中禁用外部实体加载来解决问题，从而防止了XXE攻击。最佳实践是始终禁用外部实体加载，并在解析XML时使用安全的配置。


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：
.idea/misc.xml
### 代码内容：
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="ExternalStorageConfigurationManager" enabled="true" />
  <component name="FrameworkDetectionExcludesConfiguration">
    <file type="web" url="file://$PROJECT_DIR$" />
  </component>
  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_5" default="false" project-jdk-name="11" project-jdk-type="JavaSDK" />
</project>

Output:
【漏洞类型】JDK版本配置不当
【严重性】Low
【漏洞摘要】原始代码中配置的JDK版本为11，而修复后的代码将JDK版本降级为1.8。这种行为可能会导致项目在使用JDK 11编译时出现潜在的兼容性问题，从而影响项目的稳定性和安全性。
【关键代码模式】`<component name="ProjectRootManager" version="2" languageLevel="JDK_1_5" default="false" project-jdk-name="11" project-jdk-type="JavaSDK" />`
【修复方法说明】修复方法通过将JDK版本降级为1.8来解决问题（简短）。


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：
org/w3c/css/css/StyleSheetParser.java
### 代码内容：
//
// $Id$
// From Philippe Le Hegaret (Philippe.Le_Hegaret@sophia.inria.fr)
//
// (c) COPYRIGHT MIT and INRIA, 1997.
// Please first read the full copyright statement in file COPYRIGHT.html

package org.w3c.css.css;

import org.w3c.css.atrules.css.AtRuleMedia;
import org.w3c.css.atrules.css.AtRulePage;
import org.w3c.css.parser.AtRule;
import org.w3c.css.parser.CssError;
import org.w3c.css.parser.CssFouffa;
import org.w3c.css.parser.CssParseException;
import org.w3c.css.parser.CssSelectors;
import org.w3c.css.parser.CssValidatorListener;
import org.w3c.css.parser.Errors;
import org.w3c.css.parser.analyzer.ParseException;
import org.w3c.css.parser.analyzer.TokenMgrError;
import org.w3c.css.properties.css.CssProperty;
import org.w3c.css.selectors.IdSelector;
import org.w3c.css.util.ApplContext;
import org.w3c.css.util.CssVersion;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.util.Messages;
import org.w3c.css.util.Util;
import org.w3c.css.util.Warning;
import org.w3c.css.util.Warnings;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Constructor;
import java.net.URL;
import java.util.ArrayList;
import java.util.StringTokenizer;

/**
 * @version $Revision$
 */
public final class StyleSheetParser
        implements CssValidatorListener, CssParser {

    private static Constructor co = null;

    static {
        try {
            Class c = java.lang.Exception.class;
            Class cp[] = {java.lang.Exception.class};
            co = c.getDeclaredConstructor(cp);
        } catch (NoSuchMethodException ex) {
            co = null;
        }
    }

    CssFouffa cssFouffa;
    StyleSheet style = new StyleSheet();

    public void reInit() {
        style = new StyleSheet();
    }

    public StyleSheet getStyleSheet() {
        return style;
    }

    public void setWarningLevel(int warningLevel) {
        style.setWarningLevel(warningLevel);
    }

    public void notifyErrors(Errors errors) {
        style.addErrors(errors);
    }

    public void notifyWarnings(Warnings warnings) {
        style.addWarnings(warnings);
    }

    /**
     * Adds a vector of properties to a selector.
     *
     * @param selector   the selector
     * @param properties Properties to associate with contexts
     */
    public void handleRule(ApplContext ac, CssSelectors selector,
                           ArrayList<CssProperty> properties) {
        if (selector.getAtRule() instanceof AtRulePage) {
            style.remove(selector);
        }
        for (CssProperty property : properties) {
            property.setSelectors(selector);
            style.addProperty(selector, property);
        }
    }

    // part added by Sijtsche de Jong

    public void addCharSet(String charset) {
        style.addCharSet(charset);
    }

    public void newAtRule(AtRule atRule) {
        style.newAtRule(atRule);
    }

    public void endOfAtRule() {
        style.endOfAtRule();
    }

    public void setImportant(boolean important) {
        style.setImportant(important);
    }

    public void setSelectorList(ArrayList<CssSelectors> selectors) {
        style.setSelectorList(selectors);
    }

    public void setProperty(ArrayList<CssProperty> properties) {
        style.setProperty(properties);
    }

    public void endOfRule() {
        style.endOfRule();
    }

    public void removeThisRule() {
        style.removeThisRule();
    }

    public void removeThisAtRule() {
        style.removeThisAtRule();
    }

    //end of part added by Sijtsche de Jong

    /**
     * Handles an at-rule.
     *

     *
The parameter value can be :
     *

     *
CssString
     *
The value coming from a string.
     *
CssURL
     *
The value coming from an URL.
     *
Vector
     *
The value is a vector of declarations (it contains properties).
     * This feature is not legal, so be careful.
     *

     *
     * @param ident  The ident for this at-rule (for example: 'font-face')
     * @param string The string representation if this at-rule
     */
    public void handleAtRule(ApplContext ac, String ident, String string) {
        style.getWarnings().addWarning(new Warning(cssFouffa.getSourceFile(),
                cssFouffa.getLine(),
                "at-rule",
                2,
                new String[]{ident, string},
                ac));
        //stylesheet.addAtRule(atRule);
    }

    /**
     * @param url    the URL containing the style sheet
     * @param title  the title of the stylesheet
     * @param kind   may be a stylesheet or an alternate stylesheet
     * @param media  the media to apply this
     * @param origin the origin of the style sheet
     * @throws IOException an IO error
     */
    public void parseURL(ApplContext ac, URL url, String title,
                         String kind, String media,
                         int origin) {
        boolean doneref = false;
        URL ref = ac.getReferrer();
        setWarningLevel(ac.getWarningLevel());
        if (Util.onDebug) {
            System.err.println("StyleSheet.parseURL(" + url + ", "
                    + title + ", "
                    + kind + ", " + media + ", "
                    + origin + ")");
        }
        if (kind != null) {
            kind = kind.trim().toLowerCase();
            if (!kind.equals("stylesheet") && !kind.equals("alternate stylesheet")) {
                return;
            }
        }
        try {
            ac.setOrigin(origin);
//	    if (cssFouffa == null) {
            cssFouffa = new CssFouffa(ac, url);
            cssFouffa.addListener(this);
//	    } else {
//		cssFouffa.ReInit(ac, url);
//	    }

            //	    cssFouffa.setResponse(res);

            // removed plh 2001-03-08
            // cssFouffa.setOrigin(origin);
            //	    cssFouffa.setDefaultMedium(defaultmedium);
            //	    cssFouffa.doConfig();
            if (media == null) {
                if (ac.getCssVersion() != CssVersion.CSS1) {
                    if (ac.getMedium() == null) {
                        media = "all";
                    } else {
                        media = ac.getMedium();
                    }
                }
            }
            AtRuleMedia m = AtRuleMedia.getInstance(ac.getCssVersion());
            try {
                if (media != null) {
                    addMedias(m, media, ac);
                }
                cssFouffa.setAtRule(m);
            } catch (org.w3c.css.util.InvalidParamException e) {
                Errors er = new Errors();
                er.addError(new org.w3c.css.parser.CssError(url.toString(),
                        -1, e));
                notifyErrors(er);
                return;
            }
            ac.setReferrer(url);
            doneref = true;
            cssFouffa.parseStyle();
        } catch (Exception e) {
            Errors er = new Errors();
            er.addError(new org.w3c.css.parser.CssError(Messages.escapeString(url.toString()),
                    -1, e));
            notifyErrors(er);
        } finally {
            if (doneref) {
                ac.setReferrer(ref);
            }
        }
    }

    // add media, easy version for CSS version < 3, otherwise, reuse the parser
    private void addMedias(AtRuleMedia m, String medias, ApplContext ac) throws InvalidParamException {
        // before CSS3, let's parse it the easy way...
        if (ac.getCssVersion().compareTo(CssVersion.CSS3) < 0) {
            StringTokenizer tokens = new StringTokenizer(medias, ",");
            while (tokens.hasMoreTokens()) {
                m.addMedia(null, tokens.nextToken().trim(), ac);
            }
        } else {
            CssFouffa muP = new CssFouffa(ac, new StringReader(medias));
            try {
                AtRuleMedia arm = muP.parseMediaDeclaration();
                if (arm != null) {
                    m.allMedia = arm.allMedia;
                }
            } catch (ParseException pex) {
                // error already added, so nothing else to do
            }
        }
    }

    /**
     * Parse a style element. The Style element always comes from the user
     *
     * @param reader the reader containing the style data
     * @param url    the name of the file the style element was read in.
     * @throws IOException an IO error
     */
    public void parseStyleElement(ApplContext ac, Reader reader,
                                  String title, String media,
                                  URL url, int lineno) {
        boolean doneref = false;
        style.setWarningLevel(ac.getWarningLevel());
        if (Util.onDebug) {
            System.err.println("StyleSheet.parseStyleElement(" + title + ", "
                    + media + ", " + url
                    + "," + lineno + ")");
        }
        URL ref = ac.getReferrer();
        try {

//	    if (cssFouffa == null) {
            String charset = ac.getCharsetForURL(url);
            cssFouffa = new CssFouffa(ac, reader, url, lineno);
            cssFouffa.addListener(this);
//	    } else {
//		cssFouffa.ReInit(ac, input, url, lineno);
//	    }

            //	    cssFouffa.setResponse(res);
            //	    cssFouffa.setDefaultMedium(defaultmedium);
            //	    cssFouffa.doConfig();
            if (media == null && ac.getCssVersion() != CssVersion.CSS1) {
                media = "all";
            }

            AtRuleMedia m = AtRuleMedia.getInstance(ac.getCssVersion());
            try {
                if (media != null) {
                    addMedias(m, media, ac);
                }
                cssFouffa.setAtRule(m);
            } catch (org.w3c.css.util.InvalidParamException e) {
                Errors er = new Errors();
                er.addError(new org.w3c.css.parser.CssError(url.toString(),
                        -1, e));
                notifyErrors(er);
                return;
            }
            ac.setReferrer(url);
            doneref = true;
            cssFouffa.parseStyle();
        } catch (IOException e) {
            Errors er = new Errors();
            er.addError(new org.w3c.css.parser.CssError(url.toString(),
                    -1, e));
            notifyErrors(er);
        } catch (TokenMgrError e) {
            Errors er = new Errors();
            CssParseException cpe = null;
            if (co != null) {
                try {
                    Object o[] = new Object[1];
                    o[0] = e;
                    Exception new_e = (Exception) co.newInstance(o);
                    cpe = new CssParseException(new_e);
                } catch (Exception ex) {
                    cpe = null;
                }
            }
            if (cpe == null) {
                cpe = new CssParseException(new Exception(e.getMessage()));
            }
            er.addError(new org.w3c.css.parser.CssError(url.toString(),
                    -1,
                    //e.getErrorLine(),
                    cpe));
            notifyErrors(er);
        } catch (RuntimeException e) {
            Errors er = new Errors();
            er.addError(new org.w3c.css.parser.CssError(url.toString(),
                    cssFouffa.getLine(),
                    new CssParseException(e)));
            notifyErrors(er);
        } finally {
            if (doneref) {
                ac.setReferrer(ref);
            }
        }
    }

    /**
     * @param input the inputStream containing the style data
     * @param url   the name of the file the style element was read in.
     * @throws IOException an IO error
     * @see #parseStyleElement(ApplContext, InputStream, String, String, URL, int)
     * @deprecated Replaced by parseStyleElement
     */
    public void parseStyleElement(ApplContext ac, String input, URL url, int lineno) {
        parseStyleElement(ac, new StringReader(input), null, null, url, lineno);
    }

    /**
     * Parse a style element. The Style element always comes from the user
     *
     * @param input the input stream containing the style data
     * @param url   the name of the file the style element was read in.
     * @throws IOException an IO error
     */
    public void parseStyleElement(ApplContext ac, InputStream input,
                                  String title, String media,
                                  URL url, int lineno) {
        InputStreamReader reader = null;
        String charset = ac.getCharsetForURL(url);
        try {
            reader = new InputStreamReader(input, (charset == null) ?
                    "iso-8859-1" : charset);
        } catch (UnsupportedEncodingException uex) {
            Errors er = new Errors();
            er.addError(new org.w3c.css.parser.CssError(url.toString(),
                    -1, uex));
            notifyErrors(er);
        } catch (Exception ex) {
            // in case of error, ignore it.
            reader = null;
            if (Util.onDebug) {
                System.err.println("Error in StyleSheet.parseStyleElement(" + title + ","
                        + url + "," + lineno + ")");
            }
        }
        if (reader != null) {
            parseStyleElement(ac, reader, title, media, url, lineno);
        }
    }

    /**
     * Unify call to the parser for css doc as a reader.
     *
     * @param ac
     * @param reader
     * @param docref
     */
    public void parseStyleSheet(ApplContext ac, Reader reader, URL docref) {
        parseStyleElement(ac, reader, null, null, (docref == null) ? ac.getFakeURL() : docref, 0);
    }

    /**
     * Parse some declarations. All declarations always comes from the user
     *
     * @param input the inputStream containing the style data
     * @param id    the uniq id
     * @param url   the URL the style element was read in.
     * @throws IOException an IO error
     */
    public void parseStyleAttribute(ApplContext ac, InputStream input, String id,
                                    URL url, int lineno) {
        style.setWarningLevel(ac.getWarningLevel());
        lineno--; // why ?!?!
        if (Util.onDebug) {
            System.err.println("StyleSheet.parseStyleAttribute(" + id + ","
                    + url + "," + lineno + ")");
        }

        try {
            //	    if (cssFouffa == null) {
            String charset = ac.getCharsetForURL(url);
            cssFouffa = new CssFouffa(ac, input, charset, url, lineno);
            cssFouffa.addListener(this);
            //	    } else
//		cssFouffa.ReInit(ac, input, url, lineno);
            CssSelectors selector = new CssSelectors(ac);

            try {
                AtRuleMedia media = AtRuleMedia.getInstance(ac.getCssVersion());
                if (ac.getCssVersion() != CssVersion.CSS1) {
                    media.addMedia(null, "all", ac);
                }
                cssFouffa.setAtRule(media);
            } catch (InvalidParamException e) {
            } //ignore

            try {
                if (id == null || id.length() == 0) {
                    id = "nullId-" + Long.toHexString(System.currentTimeMillis());
                    // TODO add an error/warning ?
                }
                selector.addId(new IdSelector(id.substring(1)));
            } catch (InvalidParamException e) {
                style.removeThisRule();
                ac.getFrame().addError(new CssError(e));
            }
            cssFouffa.parseDeclarations(selector);
        } catch (IOException e) {
            Errors er = new Errors();
            er.addError(new org.w3c.css.parser.CssError(url.toString(),
                    -1, e));
            notifyErrors(er);
        }
    }

    /**
     * @param input the inputStream containing the style data
     * @param id    the uniq id
     * @param url   the name of the file the style element was read in.
     * @throws IOException an IO error
     * @see #parseStyleAttribute(ApplContext, InputStream, String, URL, int)
     * @deprecated Replaced by parseStyleAttribute
     */
    public void parseStyleAttribute(ApplContext ac, String input, String id,
                                    URL url, int lineno) {
        parseStyleAttribute(ac, new ByteArrayInputStream(input.getBytes()),
                id, url, lineno);
    }

    public void setStyle(Class style) {
        cssFouffa.setStyle(style);
    }

}

Output:
【漏洞类型】信息泄露
【严重性】中等
【漏洞摘要】在`parseURL`方法中，当发生异常时，原始异常信息直接被包含在`CssError`对象中并通过`notifyErrors`方法传递给`style`对象。由于`cssFouffa.getSourceFile()`和`cssFouffa.getLine()`可能包含敏感路径或文件信息，攻击者可以通过查看错误信息来获取这些敏感信息。漏洞的根本原因是未对异常信息进行适当的过滤或清理。
【关键代码模式】
- `parseURL`方法
- `Exception`对象的处理
- `CssError`对象的创建
- `notifyErrors`方法的调用

【修复方法说明】修复方法通过创建一个新的`Exception`对象并将原始异常的`getMessage()`方法返回的字符串作为参数传递，来避免直接暴露原始异常信息。这种方法有助于减少敏感信息的泄露风险。最佳实践是确保在处理和记录异常信息时，不直接暴露可能包含敏感信息的原始异常对象。


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：
_editor/plugins/LinkDialog.js
### 代码内容：
define([
	"require",
	"dojo/_base/declare", // declare
	"dojo/dom-attr", // domAttr.get
	"dojo/keys", // keys.ENTER
	"dojo/_base/lang", // lang.delegate lang.hitch lang.trim
	"dojo/on",
	"dojo/sniff", // has("ie")
	"dojo/query", // query
	"dojo/string", // string.substitute
	"../_Plugin",
	"../../form/DropDownButton",
	"../range"
], function(require, declare, domAttr, keys, lang, on, has, query, string,
	_Plugin, DropDownButton, rangeapi){

	// module:
	//		dijit/_editor/plugins/LinkDialog

	var LinkDialog = declare("dijit._editor.plugins.LinkDialog", _Plugin, {
		// summary:
		//		This plugin provides the basis for an 'anchor' (link) dialog and an extension of it
		//		provides the image link dialog.
		// description:
		//		The command provided by this plugin is:
		//
		//		- createLink

		// Override _Plugin.buttonClass.   This plugin is controlled by a DropDownButton
		// (which triggers a TooltipDialog).
		buttonClass: DropDownButton,

		// Override _Plugin.useDefaultCommand... processing is handled by this plugin, not by dijit/Editor.
		useDefaultCommand: false,

		// urlRegExp: [protected] String
		//		Used for validating input as correct URL.  While file:// urls are not terribly
		//		useful, they are technically valid.
		urlRegExp: "((https?|ftps?|file)\\://|\./|\.\./|/|)(/[a-zA-Z]{1,1}:/|)(((?:(?:[\\da-zA-Z](?:[-\\da-zA-Z]{0,61}[\\da-zA-Z])?)\\.)*(?:[a-zA-Z](?:[-\\da-zA-Z]{0,80}[\\da-zA-Z])?)\\.?)|(((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])|(0[xX]0*[\\da-fA-F]?[\\da-fA-F]\\.){3}0[xX]0*[\\da-fA-F]?[\\da-fA-F]|(0+[0-3][0-7][0-7]\\.){3}0+[0-3][0-7][0-7]|(0|[1-9]\\d{0,8}|[1-3]\\d{9}|4[01]\\d{8}|42[0-8]\\d{7}|429[0-3]\\d{6}|4294[0-8]\\d{5}|42949[0-5]\\d{4}|429496[0-6]\\d{3}|4294967[01]\\d{2}|42949672[0-8]\\d|429496729[0-5])|0[xX]0*[\\da-fA-F]{1,8}|([\\da-fA-F]{1,4}\\:){7}[\\da-fA-F]{1,4}|([\\da-fA-F]{1,4}\\:){6}((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])))(\\:\\d+)?(/(?:[^?#\\s/]+/)*(?:[^?#\\s/]{0,}(?:\\?[^?#\\s/]*)?(?:#.*)?)?)?",

		// emailRegExp: [protected] String
		//		Used for validating input as correct email address.  Taken from dojox.validate
		emailRegExp: "<?(mailto\\:)([!#-'*+\\-\\/-9=?A-Z^-~]+[.])*[!#-'*+\\-\\/-9=?A-Z^-~]+" /*username*/ + "@" +
			"((?:(?:[\\da-zA-Z](?:[-\\da-zA-Z]{0,61}[\\da-zA-Z])?)\\.)+(?:[a-zA-Z](?:[-\\da-zA-Z]{0,6}[\\da-zA-Z])?)\\.?)|localhost|^[^-][a-zA-Z0-9_-]*>?", // host.

		// htmlTemplate: [protected] String
		//		String used for templating the HTML to insert at the desired point.
		htmlTemplate: "${textInput}",

		// tag: [protected] String
		//		Tag used for the link type.
		tag: "a",

		// _hostRxp [private] RegExp
		//		Regular expression used to validate url fragments (ip address, hostname, etc)
		_hostRxp: /^((([^\[:]+):)?([^@]+)@)?(\[([^\]]+)\]|([^\[:]*))(:([0-9]+))?$/,

		// _userAtRxp [private] RegExp
		//		Regular expression used to validate e-mail address fragment.
		_userAtRxp: /^([!#-'*+\-\/-9=?A-Z^-~]+[.])*[!#-'*+\-\/-9=?A-Z^-~]+@/i,

		// linkDialogTemplate: [protected] String
		//		Template for contents of TooltipDialog to pick URL
		linkDialogTemplate: [
			"

",
			"${url}",
			"	",
			"<input data-dojo-type='dijit.form.ValidationTextBox' required='true' " +
				"id='${id}_urlInput' name='urlInput' data-dojo-props='intermediateChanges:true'/>",
			"

",
			"${text}",
			"	",
			"<input data-dojo-type='dijit.form.ValidationTextBox' required='true' id='${id}_textInput' " +
				"name='textInput' data-dojo-props='intermediateChanges:true'/>",
			"

",
			"${target}",
			"	",
			"<select id='${id}_targetSelect' name='targetSelect' data-dojo-type='dijit.form.Select'>",
			"<option selected='selected' value='_self'>${currentWindow}</option>",
			"<option value='_blank'>${newWindow}</option>",
			"<option value='_top'>${topWindow}</option>",
			"<option value='_parent'>${parentWindow}</option>",
			"</select>",
			"

",
			"<button data-dojo-type='dijit.form.Button' type='submit' id='${id}_setButton'>${set}</button>",
			"<button data-dojo-type='dijit.form.Button' type='button' id='${id}_cancelButton'>${buttonCancel}</button>",
			"

"
		].join(""),

		_initButton: function(){
			this.inherited(arguments);

			// Setup to lazy create TooltipDialog first time the button is clicked
			this.button.loadDropDown = lang.hitch(this, "_loadDropDown");

			this._connectTagEvents();
		},
		_loadDropDown: function(callback){
			// Called the first time the button is pressed.  Initialize TooltipDialog.
			require([
				"dojo/i18n", // i18n.getLocalization
				"../../TooltipDialog",
				"../../registry", // registry.byId, registry.getUniqueId
				"../../form/Button", // used by template
				"../../form/Select", // used by template
				"../../form/ValidationTextBox", // used by template
				"dojo/i18n!../../nls/common",
				"dojo/i18n!../nls/LinkDialog"
			], lang.hitch(this, function(i18n, TooltipDialog, registry){
				var _this = this;
				this.tag = this.command == 'insertImage' ? 'img' : 'a';
				var messages = lang.delegate(i18n.getLocalization("dijit", "common", this.lang),
					i18n.getLocalization("dijit._editor", "LinkDialog", this.lang));
				var dropDown = (this.dropDown = this.button.dropDown = new TooltipDialog({
					title: messages[this.command + "Title"],
					ownerDocument: this.editor.ownerDocument,
					dir: this.editor.dir,
					execute: lang.hitch(this, "setValue"),
					onOpen: function(){
						_this._onOpenDialog();
						TooltipDialog.prototype.onOpen.apply(this, arguments);
					},
					onCancel: function(){
						setTimeout(lang.hitch(_this, "_onCloseDialog"), 0);
					}
				}));
				messages.urlRegExp = this.urlRegExp;
				messages.id = registry.getUniqueId(this.editor.id);
				this._uniqueId = messages.id;
				this._setContent(dropDown.title +
					"

" +
					string.substitute(this.linkDialogTemplate, messages));
				dropDown.startup();
				this._urlInput = registry.byId(this._uniqueId + "_urlInput");
				this._textInput = registry.byId(this._uniqueId + "_textInput");
				this._setButton = registry.byId(this._uniqueId + "_setButton");
				this.own(registry.byId(this._uniqueId + "_cancelButton").on("click", lang.hitch(this.dropDown, "onCancel")));
				if(this._urlInput){
					this.own(this._urlInput.on("change", lang.hitch(this, "_checkAndFixInput")));
				}
				if(this._textInput){
					this.own(this._textInput.on("change", lang.hitch(this, "_checkAndFixInput")));
				}

				// Build up the dual check for http/https/file:, and mailto formats.
				this._urlRegExp = new RegExp("^" + this.urlRegExp + "$", "i");
				this._emailRegExp = new RegExp("^" + this.emailRegExp + "$", "i");
				this._urlInput.isValid = lang.hitch(this, function(){
					// Function over-ride of isValid to test if the input matches a url or a mailto style link.
					var value = this._urlInput.get("value");
					return this._urlRegExp.test(value) || this._emailRegExp.test(value);
				});

				// Listen for enter and execute if valid.
				this.own(on(dropDown.domNode, "keydown", lang.hitch(this, lang.hitch(this, function(e){
					if(e && e.keyCode == keys.ENTER && !e.shiftKey && !e.metaKey && !e.ctrlKey && !e.altKey){
						if(!this._setButton.get("disabled")){
							dropDown.onExecute();
							dropDown.execute(dropDown.get('value'));
						}
					}
				}))));

				callback();
			}));
		},

		_checkAndFixInput: function(){
			// summary:
			//		A function to listen for onChange events and test the input contents
			//		for valid information, such as valid urls with http/https/ftp and if
			//		not present, try and guess if the input url is relative or not, and if
			//		not, append http:// to it.  Also validates other fields as determined by
			//		the internal _isValid function.
			var self = this;
			var url = this._urlInput.get("value");
			var fixupUrl = function(url){
				var appendHttp = false;
				var appendMailto = false;
				if(url && url.length > 1){
					url = lang.trim(url);
					if(url.indexOf("mailto:") !== 0){
						if(url.indexOf("/") > 0){
							if(url.indexOf("://") === -1){
								// Check that it doesn't start with /, ./, or ../, which would
								// imply 'target server relativeness'
								if(url.charAt(0) !== '/' && url.indexOf("./") && url.indexOf("../") !== 0){
									if(self._hostRxp.test(url)){
										appendHttp = true;
									}
								}
							}
						}else if(self._userAtRxp.test(url)){
							// If it looks like a foo@, append a mailto.
							appendMailto = true;
						}
					}
				}
				if(appendHttp){
					self._urlInput.set("value", "http://" + url);
				}
				if(appendMailto){
					self._urlInput.set("value", "mailto:" + url);
				}
				self._setButton.set("disabled", !self._isValid());
			};
			if(this._delayedCheck){
				clearTimeout(this._delayedCheck);
				this._delayedCheck = null;
			}
			this._delayedCheck = setTimeout(function(){
				fixupUrl(url);
			}, 250);
		},

		_connectTagEvents: function(){
			// summary:
			//		Over-ridable function that connects tag specific events.
			this.editor.onLoadDeferred.then(lang.hitch(this, function(){
				this.own(on(this.editor.editNode, "mouseup", lang.hitch(this, "_onMouseUp")));
				this.own(on(this.editor.editNode, "dblclick", lang.hitch(this, "_onDblClick")));
			}));
		},

		_isValid: function(){
			// summary:
			//		Internal function to allow validating of the inputs
			//		for a link to determine if set should be disabled or not
			// tags:
			//		protected
			return this._urlInput.isValid() && this._textInput.isValid();
		},

		_setContent: function(staticPanel){
			// summary:
			//		Helper for _initButton above.   Not sure why it's a separate method.
			this.dropDown.set({
				parserScope: "dojo", // make parser search for dojoType/data-dojo-type even if page is multi-version
				content: staticPanel
			});
		},

		_checkValues: function(args){
			// summary:
			//		Function to check the values in args and 'fix' them up as needed.
			// args: Object
			//		Content being set.
			// tags:
			//		protected
			if(args && args.urlInput){
				args.urlInput = args.urlInput.replace(/"/g, """);
			}
			return args;
		},

		_createlinkEnabledImpl: function() {
			// summary:
			//		This function implements the test for if the create link
			//		command should be enabled or not. This plugin supports
			//		link creation even without selected text.
			// tags:
			//		protected
			return true;
		},

		setValue: function(args){
			// summary:
			//		Callback from the dialog when user presses "set" button.
			// tags:
			//		private

			// TODO: prevent closing popup if the text is empty
			this._onCloseDialog();
			if(has("ie") < 9){ //see #4151
				var sel = rangeapi.getSelection(this.editor.window);
				var range = sel.getRangeAt(0);
				var a = range.endContainer;
				if(a.nodeType === 3){
					// Text node, may be the link contents, so check parent.
					// This plugin doesn't really support nested HTML elements
					// in the link, it assumes all link content is text.
					a = a.parentNode;
				}
				if(a && (a.nodeName && a.nodeName.toLowerCase() !== this.tag)){
					// Still nothing, one last thing to try on IE, as it might be 'img'
					// and thus considered a control.
					a = this.editor.selection.getSelectedElement(this.tag);
				}
				if(a && (a.nodeName && a.nodeName.toLowerCase() === this.tag)){
					// Okay, we do have a match.  IE, for some reason, sometimes pastes before
					// instead of removing the targeted paste-over element, so we unlink the
					// old one first.  If we do not the  tag remains, but it has no content,
					// so isn't readily visible (but is wrong for the action).
					if(this.editor.queryCommandEnabled("unlink")){
						// Select all the link children, then unlink.  The following insert will
						// then replace the selected text.
						this.editor.selection.selectElementChildren(a);
						this.editor.execCommand("unlink");
					}
				}
			}
			// make sure values are properly escaped, etc.
			args = this._checkValues(args);
			this.editor.execCommand('inserthtml',
				string.substitute(this.htmlTemplate, args));

			// IE sometimes leaves a blank link, so we need to fix it up.
			// Go ahead and do this for everyone just to avoid blank links
			// in the page.
			query("a", this.editor.document).forEach(function(a){
				if(!a.innerHTML && !domAttr.has(a, "name")){
					// Remove empty anchors that do not have "name" set.
					// Empty ones with a name set could be a hidden hash
					// anchor.
					a.parentNode.removeChild(a);
				}
			}, this);
		},

		_onCloseDialog: function(){
			// summary:
			//		Handler for close event on the dialog

			if(this.editor.focused){
				// put focus back in the edit area, unless the dialog closed because the user clicked somewhere else
				this.editor.focus();
			}
		},

		_getCurrentValues: function(a){
			// summary:
			//		Over-ride for getting the values to set in the dropdown.
			// a:
			//		The anchor/link to process for data for the dropdown.
			// tags:
			//		protected
			var url, text, target;
			if(a && a.tagName.toLowerCase() === this.tag){
				url = a.getAttribute('_djrealurl') || a.getAttribute('href');
				target = a.getAttribute('target') || "_self";
				text = a.textContent || a.innerText;
				this.editor.selection.selectElement(a, true);
			}else{
				text = this.editor.selection.getSelectedText();
			}
			return {urlInput: url || '', textInput: text || '', targetSelect: target || ''}; //Object;
		},

		_onOpenDialog: function(){
			// summary:
			//		Handler for when the dialog is opened.
			//		If the caret is currently in a URL then populate the URL's info into the dialog.
			var a, b, fc;
			if(has("ie")){
				// IE, even IE10, is difficult to select the element in, using the range unified
				// API seems to work reasonably well.
				var sel = rangeapi.getSelection(this.editor.window);
				if(sel.rangeCount){
					var range = sel.getRangeAt(0);
					a = range.endContainer;
					if(a.nodeType === 3){
						// Text node, may be the link contents, so check parent.
						// This plugin doesn't really support nested HTML elements
						// in the link, it assumes all link content is text.
						a = a.parentNode;
					}
					if(a && (a.nodeName && a.nodeName.toLowerCase() !== this.tag)){
						// Still nothing, one last thing to try on IE, as it might be 'img'
						// and thus considered a control.
						a = this.editor.selection.getSelectedElement(this.tag);
					}
					if(!a || (a.nodeName && a.nodeName.toLowerCase() !== this.tag)){
						// Try another lookup, IE's selection is just terrible.
						b = this.editor.selection.getAncestorElement(this.tag);
						if(b && (b.nodeName && b.nodeName.toLowerCase() == this.tag)){
							// Looks like we found an A tag, use it and make sure just it is
							// selected.
							a = b;
							this.editor.selection.selectElement(a);
						}else if(range.startContainer === range.endContainer){
							// STILL nothing.  Trying one more thing.  Lets look at the first child.
							// It might be an anchor tag in a div by itself or the like.  If it is,
							// we'll use it otherwise we give up.  The selection is not easily
							// determinable to be on an existing anchor tag.
							fc = range.startContainer.firstChild;
							if(fc && (fc.nodeName && fc.nodeName.toLowerCase() == this.tag)){
								a = fc;
								this.editor.selection.selectElement(a);
							}
						}
					}
				}
			}else{
				a = this.editor.selection.getAncestorElement(this.tag);
			}
			this.dropDown.reset();
			this._setButton.set("disabled", true);
			this.dropDown.set("value", this._getCurrentValues(a));
		},

		_onDblClick: function(e){
			// summary:
			//		Function to define a behavior on double clicks on the element
			//		type this dialog edits to select it and pop up the editor
			//		dialog.
			// e: Object
			//		The double-click event.
			// tags:
			//		protected.
			if(e && e.target){
				var t = e.target;
				var tg = t.tagName ? t.tagName.toLowerCase() : "";
				if(tg === this.tag && domAttr.get(t, "href")){
					var editor = this.editor;

					this.editor.selection.selectElement(t);
					editor.onDisplayChanged();

					// Call onNormalizedDisplayChange() now, rather than on timer.
					// On IE, when focus goes to the first <input> in the TooltipDialog, the editor loses it's selection.
					// Later if onNormalizedDisplayChange() gets called via the timer it will disable the LinkDialog button
					// (actually, all the toolbar buttons), at which point clicking the <input> will close the dialog,
					// since (for unknown reasons) focus.js ignores disabled controls.
					if(editor._updateTimer){
						editor._updateTimer.remove();
						delete editor._updateTimer;
					}
					editor.onNormalizedDisplayChanged();

					var button = this.button;
					setTimeout(function(){
						// Focus shift outside the event handler.
						// IE doesn't like focus changes in event handles.
						button.set("disabled", false);
						button.loadAndOpenDropDown().then(function(){
							if(button.dropDown.focus){
								button.dropDown.focus();
							}
						});
					}, 10);
				}
			}
		},

		_onMouseUp: function(){
			// summary:
			//		Function to define a behavior on mouse up on the element
			//		type this dialog edits to move the cursor just outside
			//		anchor tags when clicking on their edges.
			// tags:
			//		protected.
			if(has('ff')){
				var a = this.editor.selection.getAncestorElement(this.tag);
				if(a){
					var selection = rangeapi.getSelection(this.editor.window);
					var range = selection.getRangeAt(0);
					if(range.collapsed && a.childNodes.length){
						var test = range.cloneRange();
						test.selectNodeContents(a.childNodes[a.childNodes.length - 1]);
						test.setStart(a.childNodes[0], 0);
						if(range.compareBoundaryPoints(test.START_TO_START, test) !== 1){
							// cursor is before or at the test start
							range.setStartBefore(a);
						}else if(range.compareBoundaryPoints(test.END_TO_START, test) !== -1){
							// cursor is before or at the test end
							range.setStartAfter(a);
						}
					}
				}
			}
		}
	});

	var ImgLinkDialog = declare("dijit._editor.plugins.ImgLinkDialog", [LinkDialog], {
		// summary:
		//		This plugin extends LinkDialog and adds in a plugin for handling image links.
		//		provides the image link dialog.
		// description:
		//		The command provided by this plugin is:
		//
		//		- insertImage

		// linkDialogTemplate: [protected] String
		//		Over-ride for template since img dialog doesn't need target that anchor tags may.
		linkDialogTemplate: [
			"

",
			"${url}",
			"	",
			"<input dojoType='dijit.form.ValidationTextBox' regExp='${urlRegExp}' " +
				"required='true' id='${id}_urlInput' name='urlInput' data-dojo-props='intermediateChanges:true'/>",
			"

",
			"${text}",
			"	",
			"<input data-dojo-type='dijit.form.ValidationTextBox' required='false' id='${id}_textInput' " +
				"name='textInput' data-dojo-props='intermediateChanges:true'/>",
			"

",
			"	",
			"

",
			"<button data-dojo-type='dijit.form.Button' type='submit' id='${id}_setButton'>${set}</button>",
			"<button data-dojo-type='dijit.form.Button' type='button' id='${id}_cancelButton'>${buttonCancel}</button>",
			"

"
		].join(""),

		// htmlTemplate: [protected] String
		//		String used for templating the `<img>` HTML to insert at the desired point.
		htmlTemplate: "",

		// tag: [protected] String
		//		Tag used for the link type (img).
		tag: "img",

		_getCurrentValues: function(img){
			// summary:
			//		Over-ride for getting the values to set in the dropdown.
			// a:
			//		The anchor/link to process for data for the dropdown.
			// tags:
			//		protected
			var url, text;
			if(img && img.tagName.toLowerCase() === this.tag){
				url = img.getAttribute('_djrealurl') || img.getAttribute('src');
				text = img.getAttribute('alt');
				this.editor.selection.selectElement(img, true);
			}else{
				text = this.editor.selection.getSelectedText();
			}
			return {urlInput: url || '', textInput: text || ''}; //Object
		},

		_isValid: function(){
			// summary:
			//		Over-ride for images.  You can have alt text of blank, it is valid.
			// tags:
			//		protected
			return this._urlInput.isValid();
		},

		_connectTagEvents: function(){
			// summary:
			//		Over-ridable function that connects tag specific events.
			this.inherited(arguments);
			this.editor.onLoadDeferred.then(lang.hitch(this, function(){
				// Use onmousedown instead of onclick.  Seems that IE eats the first onclick
				// to wrap it in a selector box, then the second one acts as onclick.  See #10420
				this.own(on(this.editor.editNode, "mousedown", lang.hitch(this, "_selectTag")));
			}));
		},

		_selectTag: function(e){
			// summary:
			//		A simple event handler that lets me select an image if it is clicked on.
			//		makes it easier to select images in a standard way across browsers.  Otherwise
			//		selecting an image for edit becomes difficult.
			// e: Event
			//		The mousedown event.
			// tags:
			//		private
			if(e && e.target){
				var t = e.target;
				var tg = t.tagName ? t.tagName.toLowerCase() : "";
				if(tg === this.tag){
					this.editor.selection.selectElement(t);
				}
			}
		},

		_checkValues: function(args){
			// summary:
			//		Function to check the values in args and 'fix' them up as needed
			//		(special characters in the url or alt text)
			// args: Object
			//		Content being set.
			// tags:
			//		protected
			if(args && args.urlInput){
				args.urlInput = args.urlInput.replace(/"/g, """);
			}
			if(args && args.textInput){
				args.textInput = args.textInput.replace(/"/g, """);
			}
			return args;
		},

		_onDblClick: function(e){
			// summary:
			//		Function to define a behavior on double clicks on the element
			//		type this dialog edits to select it and pop up the editor
			//		dialog.
			// e: Object
			//		The double-click event.
			// tags:
			//		protected.
			if(e && e.target){
				var t = e.target;
				var tg = t.tagName ? t.tagName.toLowerCase() : "";
				if(tg === this.tag && domAttr.get(t, "src")){
					var editor = this.editor;

					this.editor.selection.selectElement(t);
					editor.onDisplayChanged();

					// Call onNormalizedDisplayChange() now, rather than on timer.
					// On IE, when focus goes to the first <input> in the TooltipDialog, the editor loses it's selection.
					// Later if onNormalizedDisplayChange() gets called via the timer it will disable the LinkDialog button
					// (actually, all the toolbar buttons), at which point clicking the <input> will close the dialog,
					// since (for unknown reasons) focus.js ignores disabled controls.
					if(editor._updateTimer){
						editor._updateTimer.remove();
						delete editor._updateTimer;
					}
					editor.onNormalizedDisplayChanged();

					var button = this.button;
					setTimeout(function(){
						// Focus shift outside the event handler.
						// IE doesn't like focus changes in event handles.
						button.set("disabled", false);
						button.loadAndOpenDropDown().then(function(){
							if(button.dropDown.focus){
								button.dropDown.focus();
							}
						});
					}, 10);
				}
			}
		}
	});

	// Register these plugins
	_Plugin.registry["createLink"] = function(){
		return new LinkDialog({command: "createLink"});
	};
	_Plugin.registry["insertImage"] = function(){
		return new ImgLinkDialog({command: "insertImage"});
	};

	// Export both LinkDialog and ImgLinkDialog
	// TODO for 2.0: either return both classes in a hash, or split this file into two separate files.
	// Then the documentation for the module can be applied to the hash, and will show up in the API doc.
	LinkDialog.ImgLinkDialog = ImgLinkDialog;
	return LinkDialog;
});

Output:
【漏洞类型】XSS（跨站脚本攻击）
【严重性】High
【漏洞摘要】原始代码中存在XSS漏洞，具体表现为在`_checkValues`函数中对`urlInput`进行了HTML实体编码，但对`textInput`字段未进行任何过滤或编码。攻击者可以通过在`textInput`中插入恶意脚本，从而在用户查看链接时执行这些脚本。
【关键代码模式】
- `_checkValues`函数
- `args.textInput`
- `string.substitute`
【修复方法说明】修复方法通过添加`allowUnsafeHtml`和`linkFilter`配置选项，对`textInput`字段进行过滤或编码，防止恶意脚本的注入。