001 /** 002 * Copyright 2005-2014 The Kuali Foundation 003 * 004 * Licensed under the Educational Community License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.opensource.org/licenses/ecl2.php 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 package org.kuali.rice.ksb.security.httpinvoker; 017 018 import java.io.ByteArrayOutputStream; 019 import java.io.IOException; 020 021 import org.apache.commons.codec.binary.Base64; 022 import org.apache.commons.httpclient.HttpClient; 023 import org.apache.commons.httpclient.methods.PostMethod; 024 import org.kuali.rice.core.api.security.credentials.CredentialsSource; 025 import org.kuali.rice.ksb.api.bus.ServiceConfiguration; 026 import org.kuali.rice.ksb.messaging.KSBHttpInvokerRequestExecutor; 027 import org.kuali.rice.ksb.security.credentials.UsernamePasswordCredentials; 028 import org.springframework.remoting.httpinvoker.HttpInvokerClientConfiguration; 029 import org.springframework.util.Assert; 030 031 032 /** 033 * Extension to {@link KSBHttpInvokerRequestExecutor} that retrieves 034 * credentials from the CredentialsSource and places them in a BASIC HTTP 035 * Authorization header. 036 * 037 * @author Kuali Rice Team (rice.collab@kuali.org) 038 * @since 0.9 039 */ 040 public final class AuthenticationCommonsHttpInvokerRequestExecutor extends 041 KSBHttpInvokerRequestExecutor { 042 043 /** 044 * Source of the credentials to pass via BASIC AUTH. 045 */ 046 private final CredentialsSource credentialsSource; 047 048 /** 049 * Details about the service that the CredentialsSource may need. 050 */ 051 private final ServiceConfiguration serviceConfiguration; 052 053 /** 054 * Constructor that accepts the CredentialsSource and Service Info. 055 * 056 * @param credentialsSource the source of credentials. 057 * @param serviceInfo information about the service. 058 */ 059 public AuthenticationCommonsHttpInvokerRequestExecutor(final HttpClient httpClient, 060 final CredentialsSource credentialsSource, final ServiceConfiguration serviceConfiguration) { 061 super(httpClient); 062 Assert.notNull(credentialsSource, "credentialsSource cannot be null."); 063 Assert.notNull(serviceConfiguration, "serviceConfiguration cannot be null."); 064 this.credentialsSource = credentialsSource; 065 this.serviceConfiguration = serviceConfiguration; 066 } 067 068 /** 069 * Overridden to obtain the Credentials from the CredentialsSource and pass 070 * them via HTTP BASIC Authorization. 071 */ 072 073 protected void setRequestBody(final HttpInvokerClientConfiguration config, 074 final PostMethod postMethod, final ByteArrayOutputStream baos) throws IOException { 075 final UsernamePasswordCredentials credentials = (UsernamePasswordCredentials) this.credentialsSource.getCredentials(this.serviceConfiguration.getEndpointUrl().toExternalForm()); 076 077 final String base64 = credentials.getUsername() + ":" 078 + credentials.getPassword(); 079 postMethod.addRequestHeader("Authorization", "Basic " + new String(Base64.encodeBase64(base64.getBytes()))); 080 081 if (logger.isDebugEnabled()) { 082 logger 083 .debug("HttpInvocation now presenting via BASIC authentication CredentialsSource-derived: " 084 + credentials.getUsername()); 085 } 086 087 super.setRequestBody(config, postMethod, baos); 088 } 089 }