Showing the changes to java/pkg/sun/security/ssl/SessionId.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 1996, 2008, 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 | + | |
| 26 | + | |
| 27 | +package sun.security.ssl; | |
| 28 | + | |
| 29 | +import java.security.SecureRandom; | |
| 30 | + | |
| 31 | +/** | |
| 32 | + * Encapsulates an SSL session ID. SSL Session IDs are not reused by | |
| 33 | + * servers during the lifetime of any sessions it created. Sessions may | |
| 34 | + * be used by many connections, either concurrently (for example, two | |
| 35 | + * connections to a web server at the same time) or sequentially (over as | |
| 36 | + * long a time period as is allowed by a given server). | |
| 37 | + * | |
| 38 | + * @author Satish Dharmaraj | |
| 39 | + * @author David Brownell | |
| 40 | + */ | |
| 41 | +final | |
| 42 | +class SessionId | |
| 43 | +{ | |
| 44 | + private byte sessionId []; // max 32 bytes | |
| 45 | + | |
| 46 | + /** Constructs a new session ID ... perhaps for a rejoinable session */ | |
| 47 | + SessionId (boolean isRejoinable, SecureRandom generator) | |
| 48 | + { | |
| 49 | + if (isRejoinable) | |
| 50 | + // this will be unique, it's a timestamp plus much randomness | |
| 51 | + sessionId = new RandomCookie (generator).random_bytes; | |
| 52 | + else | |
| 53 | + sessionId = new byte [0]; | |
| 54 | + } | |
| 55 | + | |
| 56 | + /** Constructs a session ID from a byte array (max size 32 bytes) */ | |
| 57 | + SessionId (byte sessionId []) | |
| 58 | + { this.sessionId = sessionId; } | |
| 59 | + | |
| 60 | + /** Returns the length of the ID, in bytes */ | |
| 61 | + int length () | |
| 62 | + { return sessionId.length; } | |
| 63 | + | |
| 64 | + /** Returns the bytes in the ID. May be an empty array. */ | |
| 65 | + byte [] getId () | |
| 66 | + { | |
| 67 | + return sessionId.clone (); | |
| 68 | + } | |
| 69 | + | |
| 70 | + /** Returns the ID as a string */ | |
| 71 | + public String toString () | |
| 72 | + { | |
| 73 | + int len = sessionId.length; | |
| 74 | + StringBuffer s = new StringBuffer (10 + 2 * len); | |
| 75 | + | |
| 76 | + s.append ("{"); | |
| 77 | + for (int i = 0; i < len; i++) { | |
| 78 | + s.append (0x0ff & sessionId [i]); | |
| 79 | + if (i != (len - 1)) | |
| 80 | + s.append (", "); | |
| 81 | + } | |
| 82 | + s.append ("}"); | |
| 83 | + return s.toString (); | |
| 84 | + } | |
| 85 | + | |
| 86 | + | |
| 87 | + /** Returns a value which is the same for session IDs which are equal */ | |
| 88 | + public int hashCode () | |
| 89 | + { | |
| 90 | + int retval = 0; | |
| 91 | + | |
| 92 | + for (int i = 0; i < sessionId.length; i++) | |
| 93 | + retval += sessionId [i]; | |
| 94 | + return retval; | |
| 95 | + } | |
| 96 | + | |
| 97 | + /** Returns true if the parameter is the same session ID */ | |
| 98 | + public boolean equals (Object obj) | |
| 99 | + { | |
| 100 | + if (!(obj instanceof SessionId)) | |
| 101 | + return false; | |
| 102 | + | |
| 103 | + SessionId s = (SessionId) obj; | |
| 104 | + byte b [] = s.getId (); | |
| 105 | + | |
| 106 | + if (b.length != sessionId.length) | |
| 107 | + return false; | |
| 108 | + for (int i = 0; i < sessionId.length; i++) { | |
| 109 | + if (b [i] != sessionId [i]) | |
| 110 | + return false; | |
| 111 | + } | |
| 112 | + return true; | |
| 113 | + } | |
| 114 | +} | |