CAS 整合/v1/tickets/{TGT id} 与/serviceValidate ,生成ST时直接验证其合法性。

CAS 整合/v1/tickets/{TGT id} 与/serviceValidate ,生成ST时直接验证其合法性。

其目的是模拟客户端（C/S结构）调用服务器去验证TGT的合法性，省略调用/serviceValidate。

修改如下：

TicketGrantingTicketResource.java

成功后直接返回( true / false )

/*
* 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.
*/
package org.jasig.cas.integration.restlet;

import javax.validation.constraints.NotNull;

import org.jasig.cas.CentralAuthenticationService;
import org.jasig.cas.authentication.principal.SimpleWebApplicationServiceImpl;
import org.jasig.cas.ticket.InvalidTicketException;
import org.jasig.cas.validation.Assertion;
import org.jasig.cas.validation.Cas20ProtocolValidationSpecification;
import org.jasig.cas.validation.ValidationSpecification;
import org.jasig.cas.web.support.ArgumentExtractor;
import org.restlet.Context;
import org.restlet.Request;
import org.restlet.Response;
import org.restlet.data.Form;
import org.restlet.data.MediaType;
import org.restlet.data.Status;
import org.restlet.representation.Representation;
import org.restlet.representation.Variant;
import org.restlet.resource.Delete;
import org.restlet.resource.Post;
import org.restlet.resource.ServerResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

/**
* Implementation of a Restlet resource for creating Service Tickets from a
* TicketGrantingTicket, as well as deleting a TicketGrantingTicket.
*
* @author Scott Battaglia
* @since 3.3
*
*/
public final class TicketGrantingTicketResource extends ServerResource {
private static final Logger LOGGER = LoggerFactory.getLogger(TicketGrantingTicketResource.class);

@Autowired
private CentralAuthenticationService centralAuthenticationService;

/** Extracts parameters from Request object. */
@NotNull
private ArgumentExtractor argumentExtractor;

@NotNull
private Class<?> validationSpecificationClass = Cas20ProtocolValidationSpecification.class;

private String ticketGrantingTicketId;

public void init(final Context context, final Request request, final Response response) {
super.init(context, request, response);
this.ticketGrantingTicketId = (String) request.getAttributes().get("ticketGrantingTicketId");
this.setNegotiated(false);
this.getVariants().add(new Variant(MediaType.APPLICATION_WWW_FORM));

}

@Delete
public void removeRepresentations() {
this.centralAuthenticationService.destroyTicketGrantingTicket(this.ticketGrantingTicketId);
getResponse().setStatus(Status.SUCCESS_OK);
}

@Post
public void acceptRepresentation(final Representation entity) {
final Form form = new Form(entity);
final String serviceUrl = form.getFirstValue("service");
try {
final String serviceTicketId = this.centralAuthenticationService.grantServiceTicket(
this.ticketGrantingTicketId,
new SimpleWebApplicationServiceImpl(serviceUrl));
//Modify by lumz for validate Service Tickets 2016年4月6日15:09:41
String resultReturn = "false";

if (new SimpleWebApplicationServiceImpl(serviceUrl) == null || serviceTicketId == null) {
LOGGER.debug("Could not identify service and/or service ticket. Service: {}, Service ticket id: {}", new SimpleWebApplicationServiceImpl(serviceUrl), serviceTicketId);
return;
}
final Assertion assertion = centralAuthenticationService.validateServiceTicket(serviceTicketId, new SimpleWebApplicationServiceImpl(serviceUrl));
final ValidationSpecification validationSpecification = this.getCommandClass();
if (validationSpecification.isSatisfiedBy(assertion)) {
resultReturn = "ture";
}else{
resultReturn = "false";
}

getResponse().setEntity(resultReturn, MediaType.TEXT_PLAIN);

//            getResponse().setEntity(serviceTicketId, MediaType.TEXT_PLAIN);

} catch (final InvalidTicketException e) {
getResponse().setStatus(Status.CLIENT_ERROR_NOT_FOUND, "TicketGrantingTicket could not be found.");
} catch (final Exception e) {
LOGGER.error(e.getMessage(), e);
getResponse().setStatus(Status.CLIENT_ERROR_BAD_REQUEST, e.getMessage());
}
}
private ValidationSpecification getCommandClass() {
try {
return (ValidationSpecification) this.validationSpecificationClass.newInstance();
} catch (final Exception e) {
throw new RuntimeException(e);
}
}
}