1 /* 2 * ==================================================================== 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * ==================================================================== 20 * 21 * This software consists of voluntary contributions made by many 22 * individuals on behalf of the Apache Software Foundation. For more 23 * information on the Apache Software Foundation, please see 24 * <http://www.apache.org/>. 25 * 26 */ 27 package org.apache.hc.client5.http.impl.auth; 28 29 import java.util.Map; 30 31 import org.apache.hc.client5.http.auth.AuthScope; 32 import org.apache.hc.client5.http.auth.Credentials; 33 34 final class CredentialsMatcher { 35 36 /** 37 * Find matching {@link Credentials credentials} for the given authentication scope. 38 * 39 * @param map the credentials hash map 40 * @param authScope the {@link AuthScope authentication scope} 41 * @return the credentials 42 * 43 */ 44 static Credentials matchCredentials(final Map<AuthScope, Credentials> map, final AuthScope authScope) { 45 // see if we get a direct hit 46 Credentials creds = map.get(authScope); 47 if (creds == null) { 48 // Nope. 49 // Do a full scan 50 int bestMatchFactor = -1; 51 AuthScope bestMatch = null; 52 for (final AuthScope current: map.keySet()) { 53 final int factor = authScope.match(current); 54 if (factor > bestMatchFactor) { 55 bestMatchFactor = factor; 56 bestMatch = current; 57 } 58 } 59 if (bestMatch != null) { 60 creds = map.get(bestMatch); 61 } 62 } 63 return creds; 64 } 65 66 }