/*
* Copyright 2011-2016 the original author or authors.
*
* Licensed 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
*
* 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.springframework.security.cas.web.authentication;
import java.net.MalformedURLException;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
import org.springframework.security.authentication.AuthenticationDetailsSource;
import org.springframework.security.cas.ServiceProperties;
import org.springframework.util.Assert;
/**
* The {@code AuthenticationDetailsSource} that is set on the
* {@code CasAuthenticationFilter} should return a value that implements
* {@code ServiceAuthenticationDetails} if the application needs to authenticate dynamic
* service urls. The
* {@code ServiceAuthenticationDetailsSource#buildDetails(HttpServletRequest)} creates a
* default {@code ServiceAuthenticationDetails}.
*
* @author Rob Winch
*/
public class ServiceAuthenticationDetailsSource implements
AuthenticationDetailsSource<HttpServletRequest, ServiceAuthenticationDetails> {
// ~ Instance fields
// ================================================================================================
private final Pattern artifactPattern;
private ServiceProperties serviceProperties;
// ~ Constructors
// ===================================================================================================
/**
* Creates an implementation that uses the specified ServiceProperites and the default
* CAS artifactParameterName.
*
* @param serviceProperties The ServiceProperties to use to construct the serviceUrl.
*/
public ServiceAuthenticationDetailsSource(ServiceProperties serviceProperties) {
this(serviceProperties, ServiceProperties.DEFAULT_CAS_ARTIFACT_PARAMETER);
}
/**
* Creates an implementation that uses the specified artifactParameterName
*
* @param serviceProperties The ServiceProperties to use to construct the serviceUrl.
* @param artifactParameterName the artifactParameterName that is removed from the
* current URL. The result becomes the service url. Cannot be null and cannot be an
* empty String.
*/
public ServiceAuthenticationDetailsSource(ServiceProperties serviceProperties,
String artifactParameterName) {
Assert.notNull(serviceProperties, "serviceProperties cannot be null");
this.serviceProperties = serviceProperties;
this.artifactPattern = DefaultServiceAuthenticationDetails
.createArtifactPattern(artifactParameterName);
}
// ~ Methods
// ========================================================================================================
/**
* @param context the {@code HttpServletRequest} object.
* @return the {@code ServiceAuthenticationDetails} containing information about the
* current request
*/
public ServiceAuthenticationDetails buildDetails(HttpServletRequest context) {
try {
return new DefaultServiceAuthenticationDetails(
serviceProperties.getService(), context, artifactPattern);
}
catch (MalformedURLException e) {
throw new RuntimeException(e);
}
}
}