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sanyaocun000：
你好，按照您的做法，到时可以的会转到客户端的登录界面，可为什么 ...
CAS Server 3.5.1 之自定义登录页 -
sunrui0451：
为什么按你配置的会，跳到cas页的login页里呢?
CAS Server 3.5.1 之自定义登录页 -
afeifqh：
我的也可以获取lt。但是服务端发布到服务器上cas用https ...
CAS Server 3.5.1 之自定义登录页 -
fangxia123：
你好，我按照您说的做了，后台数据get-lt::::true都 ...
CAS Server 3.5.1 之自定义登录页 -
fangxia123：
你好，我按照您说的做了，后台数据get-lt::::true都 ...
CAS Server 3.5.1 之自定义登录页
参考http://denger.iteye.com/blog/809170
参考https://wiki.jasig.org/display/CAS/Using+CAS+without+the+Login+Screen
做如下修改
1.修改ProvideLoginTicketAction类 增加 lt 参数
2.CAS的XML配置文件 cas-servlet.xml
3.修改跳转页面 viewRedirectToRequestor.jsp
4.web-flow.xml修改
5.修改AuthenticationViaFormAction类，可以修改源码，也可以Spring进cas-servlet.xml ,修改位置见下面代码
6.default_views.properties修改
增加自定义的跳转页面
修改增加 <transition on="errorForRemoteRequestor" to="viewRedirectToRequestor" />
工具类：
参考https://wiki.jasig.org/display/CAS/Using+CAS+without+the+Login+Screen
做如下修改
1.修改ProvideLoginTicketAction类 增加 lt 参数
2.CAS的XML配置文件 cas-servlet.xml
3.修改跳转页面 viewRedirectToRequestor.jsp
4.web-flow.xml修改
5.修改AuthenticationViaFormAction类，可以修改源码，也可以Spring进cas-servlet.xml ,修改位置见下面代码
6.default_views.properties修改
<bean id="provideLoginTicketAction" class="com.woniu.cas.ProvideLoginTicketAction" p:ticketIdGenerator-ref="loginTicketUniqueIdGenerator"/>
package com.woniu.cas;
import javax.servlet.http.HttpServletRequest;
import javax.validation.constraints.NotNull;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jasig.cas.CentralAuthenticationService;
import org.jasig.cas.authentication.principal.Service;
import org.jasig.cas.ticket.TicketException;
import org.jasig.cas.util.UniqueTicketIdGenerator;
import org.jasig.cas.web.support.WebUtils;
import org.springframework.webflow.action.AbstractAction;
import org.springframework.webflow.execution.Event;
import org.springframework.webflow.execution.RequestContext;
/**
*
*
*
*/
public class ProvideLoginTicketAction extends AbstractAction{
/** 3.5.1 - Login tickets SHOULD begin with characters "LT-" */
private static final String PREFIX = "LT";
/** Logger instance */
private final Log logger = LogFactory.getLog(getClass());
@NotNull
private UniqueTicketIdGenerator ticketIdGenerator;
public final String generate(final RequestContext context) {
final String loginTicket = this.ticketIdGenerator.getNewTicketId(PREFIX);
this.logger.debug("Generated login ticket " + loginTicket);
WebUtils.putLoginTicket(context, loginTicket);
return "generated";
}
public void setTicketIdGenerator(final UniqueTicketIdGenerator generator) {
this.ticketIdGenerator = generator;
}
@Override
protected Event doExecute(RequestContext context) throws Exception {
final HttpServletRequest request = WebUtils.getHttpServletRequest(context);
if (request.getParameter("get-lt") != null && request.getParameter("get-lt").equalsIgnoreCase("true")) {
final String loginTicket = this.ticketIdGenerator.getNewTicketId(PREFIX);
this.logger.debug("Generated login ticket " + loginTicket);
WebUtils.putLoginTicket(context, loginTicket);
return result("loginTicketRequested");
}
return result("continue");
}
}
<%@ page contentType="text/html; charset=UTF-8"%>
<%@ page import="com.woniu.cas.CasUtility"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%
String separator = "";
// 需要输入 login-at 参数，当生成lt后或登录失败后则重新跳转至 原登录页，并传入参数 lt 和 error_message
String referer = request.getParameter("login-at");
referer = CasUtility.resetUrl(referer);
if (referer != null && referer.length() > 0) {
separator = (referer.indexOf("?") > -1) ? "&" : "?";
%>
<html>
<title>cas get login ticket</title>
<head>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script>
var redirectURL = "<%=referer + separator%>lt=${loginTicket}&execution=${flowExecutionKey}";
alert(redirectURL);
<spring:hasBindErrors name="credentials">
var errorMsg = '<c:forEach var="error" items="${errors.allErrors}"><spring:message code="${error.code}" text="${error.defaultMessage}" /></c:forEach>';
redirectURL += '&error_message=' + encodeURIComponent (errorMsg);
</spring:hasBindErrors>
window.location.href = redirectURL;
</script>
</head>
<body></body>
</html>
<%
} else {
%>
<script>window.location.href = "/member/login";</script>
<%
}
%>
增加自定义的跳转页面
<action-state id="provideLoginTicket">
<evaluate expression="provideLoginTicketAction"/>
<transition on="loginTicketRequested" to ="viewRedirectToRequestor" />
<transition on="continue" to="ticketGrantingTicketExistsCheck" />
</action-state>
<view-state id="viewRedirectToRequestor" view="casRedirectToRequestorView" model="credentials">
<binder>
<binding property="username" />
<binding property="password" />
</binder>
<on-entry>
<set name="viewScope.commandName" value="'credentials'" />
</on-entry>
<transition on="submit" bind="true" validate="true" to="realSubmit">
<set name="flowScope.credentials" value="credentials" />
<evaluate expression="authenticationViaFormAction.doBind(flowRequestContext, flowScope.credentials)" />
</transition>
</view-state>
修改增加 <transition on="errorForRemoteRequestor" to="viewRedirectToRequestor" />
<action-state id="realSubmit">
<evaluate expression="authenticationViaFormAction.submit(flowRequestContext, flowScope.credentials, messageContext)" />
<!--
To enable LPPE on the 'warn' replace the below transition with:
<transition on="warn" to="passwordPolicyCheck" />
CAS will attempt to transition to the 'warn' when there's a 'renew' parameter
and there exists a ticketGrantingId and a service for the incoming request.
-->
<transition on="warn" to="warn" />
<!--
To enable LPPE on the 'success' replace the below transition with:
<transition on="success" to="passwordPolicyCheck" />
-->
<transition on="success" to="sendTicketGrantingTicket" />
<transition on="error" to="generateLoginTicket" />
<transition on="errorForRemoteRequestor" to="viewRedirectToRequestor" />
<transition on="accountDisabled" to="casAccountDisabledView" />
<transition on="mustChangePassword" to="casMustChangePassView" />
<transition on="accountLocked" to="casAccountLockedView" />
<transition on="badHours" to="casBadHoursView" />
<transition on="badWorkstation" to="casBadWorkstationView" />
<transition on="passwordExpired" to="casExpiredPassView" />
</action-state>
package com.woniu.cas;
/*
* Licensed to Jasig under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Jasig licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a
* copy of the License at the following location:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.constraints.NotNull;
import org.jasig.cas.CentralAuthenticationService;
import org.jasig.cas.authentication.handler.AuthenticationException;
import org.jasig.cas.authentication.principal.Credentials;
import org.jasig.cas.authentication.principal.Service;
import org.jasig.cas.ticket.TicketException;
import org.jasig.cas.web.bind.CredentialsBinder;
import org.jasig.cas.web.support.WebUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.binding.message.MessageBuilder;
import org.springframework.binding.message.MessageContext;
import org.springframework.util.StringUtils;
import org.springframework.web.util.CookieGenerator;
import org.springframework.webflow.execution.RequestContext;
/**
* Action to authenticate credentials and retrieve a TicketGrantingTicket for
* those credentials. If there is a request for renew, then it also generates
* the Service Ticket required.
*
* @author Scott Battaglia
* @version $Revision$ $Date$
* @since 3.0.4
*/
public class AuthenticationViaFormAction {
/**
* Binder that allows additional binding of form object beyond Spring
* defaults.
*/
private CredentialsBinder credentialsBinder;
/** Core we delegate to for handling all ticket related tasks. */
@NotNull
private CentralAuthenticationService centralAuthenticationService;
@NotNull
private CookieGenerator warnCookieGenerator;
protected Logger logger = LoggerFactory.getLogger(getClass());
public final void doBind(final RequestContext context, final Credentials credentials) throws Exception {
final HttpServletRequest request = WebUtils.getHttpServletRequest(context);
if (this.credentialsBinder != null && this.credentialsBinder.supports(credentials.getClass())) {
this.credentialsBinder.bind(request, credentials);
}
}
public final String submit(final RequestContext context, final Credentials credentials, final MessageContext messageContext) throws Exception {
// Validate login ticket
final String authoritativeLoginTicket = WebUtils.getLoginTicketFromFlowScope(context);
final String providedLoginTicket = WebUtils.getLoginTicketFromRequest(context);
System.out.println(authoritativeLoginTicket+","+providedLoginTicket);
if (!authoritativeLoginTicket.equals(providedLoginTicket)) {
System.out.println("providedLoginTicket ERROR");
this.logger.warn("Invalid login ticket " + providedLoginTicket);
final String code = "INVALID_TICKET";
messageContext.addMessage(
new MessageBuilder().error().code(code).arg(providedLoginTicket).defaultText(code).build());
return "error";
}
final String ticketGrantingTicketId = WebUtils.getTicketGrantingTicketId(context);
final Service service = WebUtils.getService(context);
if (StringUtils.hasText(context.getRequestParameters().get("renew")) && ticketGrantingTicketId != null && service != null) {
try {
final String serviceTicketId = this.centralAuthenticationService.grantServiceTicket(ticketGrantingTicketId, service, credentials);
WebUtils.putServiceTicketInRequestScope(context, serviceTicketId);
putWarnCookieIfRequestParameterPresent(context);
return "warn";
} catch (final TicketException e) {
if (isCauseAuthenticationException(e)) {
populateErrorsInstance(e, messageContext);
return getAuthenticationExceptionEventId(e);
}
this.centralAuthenticationService.destroyTicketGrantingTicket(ticketGrantingTicketId);
if (logger.isDebugEnabled()) {
logger.debug("Attempted to generate a ServiceTicket using renew=true with different credentials", e);
}
}
}
try {
WebUtils.putTicketGrantingTicketInRequestScope(context, this.centralAuthenticationService.createTicketGrantingTicket(credentials));
putWarnCookieIfRequestParameterPresent(context);
return "success";
} catch (final TicketException e) {
populateErrorsInstance(e, messageContext);
String referer = context.getRequestParameters().get("login-at");
if (!org.apache.commons.lang.StringUtils.isBlank(referer)) {
System.out.println("errorForRemoteRequestor!!!!!!!!!!!!!!!!!!!");
return "errorForRemoteRequestor";
}
return "error";
// if (isCauseAuthenticationException(e))
// return getAuthenticationExceptionEventId(e);
// return "error";
}
}
private void populateErrorsInstance(final TicketException e, final MessageContext messageContext) {
System.out.println("populateErrorsInstance");
try {
messageContext.addMessage(new MessageBuilder().error().code(e.getCode()).defaultText(e.getCode()).build());
} catch (final Exception fe) {
logger.error(fe.getMessage(), fe);
}
}
private void putWarnCookieIfRequestParameterPresent(final RequestContext context) {
System.out.println("putWarnCookieIfRequestParameterPresent");
final HttpServletResponse response = WebUtils.getHttpServletResponse(context);
if (StringUtils.hasText(context.getExternalContext().getRequestParameterMap().get("warn"))) {
this.warnCookieGenerator.addCookie(response, "true");
} else {
this.warnCookieGenerator.removeCookie(response);
}
}
private AuthenticationException getAuthenticationExceptionAsCause(final TicketException e) {
return (AuthenticationException) e.getCause();
}
private String getAuthenticationExceptionEventId(final TicketException e) {
final AuthenticationException authEx = getAuthenticationExceptionAsCause(e);
if (this.logger.isDebugEnabled())
this.logger.debug("An authentication error has occurred. Returning the event id " + authEx.getType());
return authEx.getType();
}
private boolean isCauseAuthenticationException(final TicketException e) {
return e.getCause() != null && AuthenticationException.class.isAssignableFrom(e.getCause().getClass());
}
public final void setCentralAuthenticationService(final CentralAuthenticationService centralAuthenticationService) {
this.centralAuthenticationService = centralAuthenticationService;
}
/**
* Set a CredentialsBinder for additional binding of the HttpServletRequest
* to the Credentials instance, beyond our default binding of the
* Credentials as a Form Object in Spring WebMVC parlance. By the time we
* invoke this CredentialsBinder, we have already engaged in default binding
* such that for each HttpServletRequest parameter, if there was a JavaBean
* property of the Credentials implementation of the same name, we have set
* that property to be the value of the corresponding request parameter.
* This CredentialsBinder plugin point exists to allow consideration of
* things other than HttpServletRequest parameters in populating the
* Credentials (or more sophisticated consideration of the
* HttpServletRequest parameters).
*
* @param credentialsBinder the credentials binder to set.
*/
public final void setCredentialsBinder(final CredentialsBinder credentialsBinder) {
this.credentialsBinder = credentialsBinder;
}
public final void setWarnCookieGenerator(final CookieGenerator warnCookieGenerator) {
this.warnCookieGenerator = warnCookieGenerator;
}
}
<bean id="authenticationViaFormAction" class=" com.woniu.cas.AuthenticationViaFormAction"
p:centralAuthenticationService-ref="centralAuthenticationService"
p:warnCookieGenerator-ref="warnCookieGenerator"/>
工具类：
package com.woniu.cas;
public class CasUtility {
/**
* Removes the previously attached GET parameters "lt" and "error_message"
* to be able to send new ones.
*
* @param casUrl
* @return
*/
public static String resetUrl(String casUrl) {
String cleanedUrl;
String[] paramsToBeRemoved = new String[] { "lt", "error_message", "get-lt" };
cleanedUrl = removeHttpGetParameters(casUrl, paramsToBeRemoved);
return cleanedUrl;
}
/**
* Removes selected HTTP GET parameters from a given URL
*
* @param casUrl
* @param paramsToBeRemoved
* @return
*/
public static String removeHttpGetParameters(String casUrl,
String[] paramsToBeRemoved) {
String cleanedUrl = casUrl;
if (casUrl != null) {
// check if there is any query string at all
if (casUrl.indexOf("?") == -1) {
return casUrl;
} else {
// determine the start and end position of the parameters to be
// removed
int startPosition, endPosition;
boolean containsOneOfTheUnwantedParams = false;
for (String paramToBeErased : paramsToBeRemoved) {
startPosition = -1;
endPosition = -1;
if (cleanedUrl.indexOf("?" + paramToBeErased + "=") > -1) {
startPosition = cleanedUrl.indexOf("?"
+ paramToBeErased + "=") + 1;
} else if (cleanedUrl.indexOf("&" + paramToBeErased + "=") > -1) {
startPosition = cleanedUrl.indexOf("&"
+ paramToBeErased + "=") + 1;
}
if (startPosition > -1) {
int temp = cleanedUrl.indexOf("&", startPosition);
endPosition = (temp > -1) ? temp + 1 : cleanedUrl
.length();
// remove that parameter, leaving the rest untouched
cleanedUrl = cleanedUrl.substring(0, startPosition)
+ cleanedUrl.substring(endPosition);
containsOneOfTheUnwantedParams = true;
}
}
// wenn nur noch das Fragezeichen vom query string übrig oder am
// schluss ein "&", dann auch dieses entfernen
if (cleanedUrl.endsWith("?") || cleanedUrl.endsWith("&")) {
cleanedUrl = cleanedUrl.substring(0,
cleanedUrl.length() - 1);
}
// parameter mehrfach angegeben wurde...
if (!containsOneOfTheUnwantedParams)
return casUrl;
else
cleanedUrl = removeHttpGetParameters(cleanedUrl,
paramsToBeRemoved);
}
}
return cleanedUrl;
}
}
6.default_views.properties修改 ### Redirect with login ticket view casRedirectToRequestorView.(class)=org.springframework.web.servlet.view.JstlView casRedirectToRequestorView.url=/WEB-INF/view/jsp/default/ui/viewRedirectToRequestor.jsp
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评论
5 楼
sanyaocun000
2013-11-18
你好，按照您的做法，到时可以的会转到客户端的登录界面，可为什么点击登录后跳转到认证服务器的登录页面呢？
4 楼
sunrui0451
2013-10-21
为什么按你配置的会，跳到cas页的login页里呢?
3 楼
afeifqh
2013-09-27
我的也可以获取lt。但是服务端发布到服务器上cas用https方式的时候，获取到lt，点击登录就跳转到了cas的默认登陆页去了。 但是在我本地开启as服务端却可以（本地采用http）。
不支持服务器用https方式么？
不支持服务器用https方式么？
2 楼
fangxia123
2013-03-15
你好，我按照您说的做了，后台数据get-lt::::true都可以获取到，lt也有值，可是在点登录按钮后却是跳转到cas的登录页面去了，这是为什么？？？
1 楼
fangxia123
2013-03-15
你好，我按照您说的做了，后台数据get-lt::::true都可以获取到，lt也有值，可是在点登录按钮后却是跳转到cas的登录页面去了，这是为什么？？？
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