001package ca.uhn.fhir.rest.client.interceptor;
002
003/*
004 * #%L
005 * HAPI FHIR - Client Framework
006 * %%
007 * Copyright (C) 2014 - 2018 University Health Network
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 * 
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import java.io.IOException;
024import java.io.UnsupportedEncodingException;
025
026import org.apache.commons.codec.binary.Base64;
027import org.apache.commons.lang3.StringUtils;
028
029import ca.uhn.fhir.rest.api.Constants;
030import ca.uhn.fhir.rest.client.api.*;
031import ca.uhn.fhir.rest.server.exceptions.InternalErrorException;
032
033/**
034 * HTTP interceptor to be used for adding HTTP basic auth username/password tokens
035 * to requests
036 * <p>
037 * See the <a href="http://jamesagnew.github.io/hapi-fhir/doc_rest_client_interceptor.html#Security_HTTP_Basic_Authorization">HAPI Documentation</a>
038 * for information on how to use this class.
039 * </p>
040 */
041public class BasicAuthInterceptor implements IClientInterceptor {
042
043        private String myUsername;
044        private String myPassword;
045
046    public BasicAuthInterceptor(String theUsername, String thePassword) {
047                super();
048                myUsername = theUsername;
049                myPassword = thePassword;
050        }
051
052        @Override
053        public void interceptRequest(IHttpRequest theRequest) {
054                String authorizationUnescaped = StringUtils.defaultString(myUsername) + ":" + StringUtils.defaultString(myPassword);
055        String encoded;
056        try {
057                encoded = Base64.encodeBase64String(authorizationUnescaped.getBytes("ISO-8859-1"));
058        } catch (UnsupportedEncodingException e) {
059                throw new InternalErrorException("Could not find US-ASCII encoding. This shouldn't happen!");
060        }
061        theRequest.addHeader(Constants.HEADER_AUTHORIZATION, ("Basic " + encoded));
062        }
063
064        @Override
065        public void interceptResponse(IHttpResponse theResponse) throws IOException {
066                // nothing
067        }
068
069        
070
071}