Apereo CAS 5.3.x:登录Java cas客户端后，如何从CAS服务器获取登录用户

Question

遵循官方的Apereo CAS文档。我不明白（经过各种研究和指导）。

如何恢复身份验证后刚刚登录的用户。项目之间的身份验证和 SSO 正常工作。但是我无法获得有关登录用户的信息。

这是我在应用程序属性上的配置：

##
# CAS Server Context Configuration
#
server.context-path=/cas
server.port=8443
server.ssl.key-store=file:/etc/cas/thekeystore
server.ssl.key-store-password=changeit
server.ssl.key-password=changeit
server.max-http-header-size=2097152
server.use-forward-headers=true
server.connection-timeout=20000
server.error.include-stacktrace=ALWAYS
server.compression.enabled=true
server.compression.mime-types=application/javascript,application/json,application/xml,text/html,text/xml,text/plain
server.tomcat.max-http-post-size=2097152
server.tomcat.basedir=build/tomcat
server.tomcat.accesslog.enabled=true
server.tomcat.accesslog.pattern=%t %a "%r" %s (%D ms)
server.tomcat.accesslog.suffix=.log
server.tomcat.min-spare-threads=10
server.tomcat.max-threads=200
server.tomcat.port-header=X-Forwarded-Port
server.tomcat.protocol-header=X-Forwarded-Proto
server.tomcat.protocol-header-https-value=https
server.tomcat.remote-ip-header=X-FORWARDED-FOR
server.tomcat.uri-encoding=UTF-8
spring.http.encoding.charset=UTF-8
spring.http.encoding.enabled=true
spring.http.encoding.force=true
##
# CAS Cloud Bus Configuration
#
spring.cloud.bus.enabled=false
# Indicates that systemPropertiesOverride can be used.
# Set to false to prevent users from changing the default accidentally. Default true.
spring.cloud.config.allow-override=true
# External properties should override system properties.
spring.cloud.config.override-system-properties=false
# When allowOverride is true, external properties should take lowest priority, and not override any
# existing property sources (including local config files).
spring.cloud.config.override-none=false
# spring.cloud.bus.refresh.enabled=true
# spring.cloud.bus.env.enabled=true
# spring.cloud.bus.destination=CasCloudBus
# spring.cloud.bus.ack.enabled=true
endpoints.enabled=false
endpoints.sensitive=true
endpoints.restart.enabled=false
endpoints.shutdown.enabled=false
# Control the security of the management/actuator endpoints
# The 'enabled' flag below here controls the rendering of details for the health endpoint amongst other things.
management.security.enabled=true
management.security.roles=ACTUATOR,ADMIN
management.security.sessions=if_required
management.context-path=/status
management.add-application-context-header=false
# Define a CAS-specific "WARN" status code and its order
management.health.status.order=WARN, DOWN, OUT_OF_SERVICE, UNKNOWN, UP
# Control the security of the management/actuator endpoints
# With basic authentication, assuming Spring Security and/or relevant modules are on the classpath.
security.basic.authorize-mode=role
security.basic.path=/cas/status/**
# security.basic.enabled=true
# security.user.name=casuser
# security.user.password=
##
# CAS Web Application Session Configuration
#
server.session.timeout=300
server.session.cookie.http-only=true
server.session.tracking-modes=COOKIE
##
# CAS Thymeleaf View Configuration
#
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.cache=true
spring.thymeleaf.mode=HTML
spring.thymeleaf.template-resolver-order=100
##
# CAS Log4j Configuration
#
# logging.config=file:/etc/cas/log4j2.xml
server.context-parameters.isLog4jAutoInitializationDisabled=true
##
# CAS AspectJ Configuration
#
spring.aop.auto=true
spring.aop.proxy-target-class=true
##
# CAS Authentication Credentials
#
# cas.authn.accept.users=casuser::Mellon
cas.authn.accept.users=
logging.level.org.apereo=DEBUG
cas.authn.jdbc.query[0].sql=SELECT * FROM USERS WHERE uid=?
cas.authn.jdbc.query[0].url=jdbc:mysql://localhost:3306/casdatabase?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
cas.authn.jdbc.query[0].dialect=org.hibernate.dialect.MySQLDialect
cas.authn.jdbc.query[0].user=cas
cas.authn.jdbc.query[0].password=cas
cas.authn.jdbc.query[0].driverClass=com.mysql.jdbc.Driver
cas.authn.jdbc.query[0].fieldPassword=psw
cas.authn.jdbc.query[0].passwordEncoder.type=DEFAULT
cas.authn.jdbc.query[0].passwordEncoder.encodingAlgorithm=MD5
cas.authn.jdbc.query[0].passwordEncoder.characterEncoding=UTF-8
# Services
 cas.serviceRegistry.watcherEnabled=true
 cas.serviceRegistry.schedule.repeatInterval=120000
 cas.serviceRegistry.schedule.startDelay=15000
# Auto-initialize the registry from default JSON service definitions
 cas.serviceRegistry.initFromJson=true
#cas.serviceRegistry.managementType=DEFAULT|DOMAIN
cas.serviceRegistry.managementType=DEFAULT
cas.serviceRegistry.json.location=WEB-INF/classes/services

cas.tgc.path=/
cas.tgc.maxAge=-1
cas.tgc.domain=www.myDomain.it
cas.tgc.name=TGC
cas.tgc.secure=true
cas.tgc.httpOnly=false
cas.tgc.rememberMeMaxAge=1209600

这是我在CAS服务器上注册的JSON服务（compA-10000003.json）

{
  "@class" : "org.apereo.cas.services.RegexRegisteredService",
  "serviceId" : "^https://www.myproject.com:8443/compA/servlet",
  "name" : "compA",
  "theme" : "apereo",
  "id" : 10000003,
  "description" : "descrizione servizio compA",
  "evaluationOrder" : 10000
}

这是我的网站.xml CAS 客户端 java 应用程序：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
    <servlet>
        <servlet-name>servlet</servlet-name>
        <servlet-class>it.seed.compa.servlet</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>logout</servlet-name>
        <servlet-class>it.seed.compa.logout</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>login</servlet-name>
        <servlet-class>it.seed.compa.login</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>servlet</servlet-name>
        <url-pattern>/servlet</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>logout</servlet-name>
        <url-pattern>/logout</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>login</servlet-name>
        <url-pattern>/login</url-pattern>
    </servlet-mapping>
   <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <!--filter>
        <filter-name>CAS Filter</filter-name>
        <filter-class>edu.yale.its.tp.cas.client.filter.CASFilter</filter-class>
        <init-param>
            <param-name>edu.yale.its.tp.cas.client.filter.loginUrl</param-name>
            <param-value>https://192.168.91.42:8443/apereoCAS/login</param-value>
        </init-param>
        <init-param>
            <param-name>edu.yale.its.tp.cas.client.filter.validateUrl</param-name>
            <param-value>https://192.168.91.42:8443/apereoCAS/serviceValidate</param-value>
        </init-param>
        <init-param>
            <param-name>edu.yale.its.tp.cas.client.filter.serverName</param-name>
            <param-value>192.168.91.98:8084</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CAS Filter</filter-name>
        <url-pattern>/servlet</url-pattern>
    </filter-mapping-->
    <filter>
        <filter-name>CAS Single Sign Out Filter</filter-name>
        <filter-class>org.jasig.cas.client.session.SingleSignOutFilter</filter-class>
        <init-param>
            <param-name>casServerUrlPrefix</param-name>
            <param-value>https://www.cas.server.glauco.it:8443/apereoCAS</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CAS Single Sign Out Filter</filter-name>
        <url-pattern>/logout</url-pattern>
    </filter-mapping>

    <!-- Listener to clean sessions -->
    <listener>
        <listener-class>org.jasig.cas.client.session.SingleSignOutHttpSessionListener
        </listener-class>
    </listener>

    <!-- Define the protected urls of your application -->
    <!-- #### change with your own CAS server and your host name #### -->
    <filter>
        <filter-name>CAS Authentication Filter</filter-name>
        <filter-class>org.jasig.cas.client.authentication.AuthenticationFilter</filter-class>
        <init-param>
            <param-name>casServerLoginUrl</param-name>
            <param-value>https://www.cas.server.glauco.it:8443/apereoCAS/login
            </param-value>
        </init-param>
        <init-param>
            <param-name>serverName</param-name>
            <param-value>https://www.progetto2.glauco.it:8443</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CAS Authentication Filter</filter-name>
        <url-pattern>/servlet</url-pattern>
    </filter-mapping>


    <!-- Define the urls on which you can validate a service ticket -->
    <!-- #### change with your own CAS server and your host name #### -->
    <filter>
        <filter-name>CAS Validation Filter</filter-name>
        <filter-class>org.jasig.cas.client.validation.Cas30ProxyReceivingTicketValidationFilter</filter-class>
        <init-param>
            <param-name>casServerUrlPrefix</param-name>
            <param-value>https://www.cas.server.glauco.it:8443/apereoCAS</param-value>
        </init-param>

        <init-param>
            <param-name>redirectAfterValidation</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>useSession</param-name>
            <param-value>true</param-value>
        </init-param>

        <init-param>
            <param-name>serverName</param-name>
            <param-value>https://www.progetto2.glauco.it:8443</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CAS Validation Filter</filter-name>
        <url-pattern>/p</url-pattern>
    </filter-mapping>

    <!-- Put the CAS principal in the HTTP request -->
    <filter>
        <filter-name>CAS HttpServletRequest Wrapper Filter</filter-name>
        <filter-class>org.jasig.cas.client.util.HttpServletRequestWrapperFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>CAS HttpServletRequest Wrapper Filter</filter-name>
        <url-pattern>/* </url-pattern>
    </filter-mapping>
</web-app>

最后是我尝试读取有关登录用户信息的servlet：

package it.seed.compa;

import com.google.gson.Gson;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jasig.cas.client.authentication.AttributePrincipal;
import org.jasig.cas.client.authentication.AttributePrincipalImpl;
import org.jasig.cas.client.authentication.SimplePrincipal;
public class servlet extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            Gson g = new Gson();
            System.out.println(  g.toJson(request.getCookies())  );
            System.out.println("-----------getParameterMap-------------------");
            System.out.println(  g.toJson(request.getParameterMap() )  );
            System.out.println("----------------getParameterNames--------------");
            System.out.println(  g.toJson(request.getParameterNames() )  );
            System.out.println("---------------getQueryString---------------");
            System.out.println(  g.toJson(request.getQueryString() )  );
            System.out.println("------------getSession------------------");
            System.out.println(  g.toJson(request.getSession() )  );
            System.out.println("------------getRemoteUser------------------");
            System.out.println(  request.getRemoteUser()  );
            System.out.println("------------getParameter principal------------------");
            System.out.println(  request.getParameter("principal")  );
            System.out.println("------------getParameter id------------------");
            System.out.println(  request.getParameter("id")  );
            System.out.println("response");

            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet servlet</title>");            
            out.println("</head>");
            out.println("<body>");
            System.out.println(request.getParameter("ticket"));
            if(request.getUserPrincipal() != null) // this is always NULL
            {
                AttributePrincipal principal = (AttributePrincipal)request.getUserPrincipal();
                Map attributes = principal.getAttributes();
                Iterator attributeNames = attributes.keySet().iterator();
                out.println("<table>");
                for (; attributeNames.hasNext();) {
                out.println("<tr><th>");
                String attributeName = (String) attributeNames.next();
                      out.println(attributeName);
                      out.println("</th><td>");
                      Object attributeValue = attributes.get(attributeName);
                      out.println(attributeValue);
                      out.println("</td></tr>");
                }
                out.println("</table>");
            } else{
                System.out.println("nothing");
            }

            out.println("</body>");
            out.println("</html>");
        }
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        processRequest(request, response);
    }
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        processRequest(request, response);
    }
    @Override
    public String getServletInfo() {
        return "Short description";
    }
}

有人可以帮助我检索登录的用户吗？

Answer 1

代码已经在 servlet 中。CAS 成功验证它创建的服务票证后，用户信息将存在于"属性主体"对象中。

你已经有

 AttributePrincipal principal = (AttributePrincipal)request.getUserPrincipal();

这会给你校长。然后可以使用以下命令获取用于登录的名称

String userName = principal.getName();