1/* 2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.net.www.protocol.http; 27 28import java.io.IOException; 29import java.net.URL; 30import java.util.Hashtable; 31import java.util.LinkedList; 32import java.util.ListIterator; 33import java.util.Enumeration; 34import java.util.HashMap; 35 36/** 37 * @author Michael McMahon 38 */ 39 40public class AuthCacheImpl implements AuthCache { 41 HashMap hashtable; 42 43 public AuthCacheImpl () { 44 hashtable = new HashMap (); 45 } 46 47 public void setMap (HashMap map) { 48 hashtable = map; 49 } 50 51 // put a value in map according to primary key + secondary key which 52 // is the path field of AuthenticationInfo 53 54 public synchronized void put (String pkey, AuthCacheValue value) { 55 LinkedList list = (LinkedList) hashtable.get (pkey); 56 String skey = value.getPath(); 57 if (list == null) { 58 list = new LinkedList (); 59 hashtable.put (pkey, list); 60 } 61 // Check if the path already exists or a super-set of it exists 62 ListIterator iter = list.listIterator(); 63 while (iter.hasNext()) { 64 AuthenticationInfo inf = (AuthenticationInfo)iter.next(); 65 if (inf.path == null || inf.path.startsWith (skey)) { 66 iter.remove (); 67 } 68 } 69 iter.add (value); 70 } 71 72 // get a value from map checking both primary 73 // and secondary (urlpath) key 74 75 public synchronized AuthCacheValue get (String pkey, String skey) { 76 AuthenticationInfo result = null; 77 LinkedList list = (LinkedList) hashtable.get (pkey); 78 if (list == null || list.size() == 0) { 79 return null; 80 } 81 if (skey == null) { 82 // list should contain only one element 83 return (AuthenticationInfo)list.get (0); 84 } 85 ListIterator iter = list.listIterator(); 86 while (iter.hasNext()) { 87 AuthenticationInfo inf = (AuthenticationInfo)iter.next(); 88 if (skey.startsWith (inf.path)) { 89 return inf; 90 } 91 } 92 return null; 93 } 94 95 public synchronized void remove (String pkey, AuthCacheValue entry) { 96 LinkedList list = (LinkedList) hashtable.get (pkey); 97 if (list == null) { 98 return; 99 } 100 if (entry == null) { 101 list.clear(); 102 return; 103 } 104 ListIterator iter = list.listIterator (); 105 while (iter.hasNext()) { 106 AuthenticationInfo inf = (AuthenticationInfo)iter.next(); 107 if (entry.equals(inf)) { 108 iter.remove (); 109 } 110 } 111 } 112} 113