Java tutorial
/* * @(#)$Id: Helper.java 116 2008-10-30 06:12:51Z unsaved $ * * Copyright 2008 by the JWebMail Development Team and Sebastian Schaffert. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package net.wastl.webmail.misc; import java.math.BigInteger; import java.net.InetAddress; import java.util.Enumeration; import java.util.StringTokenizer; import javax.mail.Address; import net.wastl.webmail.server.http.HTTPRequestHeader; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * Miscellaneous helper routines. * * Created: Tue Sep 7 13:03:44 1999 * * @author Sebastian Schaffert */ public class Helper { private static Log log = LogFactory.getLog(Helper.class); private static Log threadDumperLog = LogFactory.getLog("THREAD.DUMPER"); private static final int ITERATIONS = 16; private static final int con_salt[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, }; private static final boolean shifts2[] = { false, false, true, true, true, true, true, true, false, true, true, true, true, true, true, false }; private static final int skb[][] = { { /* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ 0x00000000, 0x00000010, 0x20000000, 0x20000010, 0x00010000, 0x00010010, 0x20010000, 0x20010010, 0x00000800, 0x00000810, 0x20000800, 0x20000810, 0x00010800, 0x00010810, 0x20010800, 0x20010810, 0x00000020, 0x00000030, 0x20000020, 0x20000030, 0x00010020, 0x00010030, 0x20010020, 0x20010030, 0x00000820, 0x00000830, 0x20000820, 0x20000830, 0x00010820, 0x00010830, 0x20010820, 0x20010830, 0x00080000, 0x00080010, 0x20080000, 0x20080010, 0x00090000, 0x00090010, 0x20090000, 0x20090010, 0x00080800, 0x00080810, 0x20080800, 0x20080810, 0x00090800, 0x00090810, 0x20090800, 0x20090810, 0x00080020, 0x00080030, 0x20080020, 0x20080030, 0x00090020, 0x00090030, 0x20090020, 0x20090030, 0x00080820, 0x00080830, 0x20080820, 0x20080830, 0x00090820, 0x00090830, 0x20090820, 0x20090830, }, { /* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */ 0x00000000, 0x02000000, 0x00002000, 0x02002000, 0x00200000, 0x02200000, 0x00202000, 0x02202000, 0x00000004, 0x02000004, 0x00002004, 0x02002004, 0x00200004, 0x02200004, 0x00202004, 0x02202004, 0x00000400, 0x02000400, 0x00002400, 0x02002400, 0x00200400, 0x02200400, 0x00202400, 0x02202400, 0x00000404, 0x02000404, 0x00002404, 0x02002404, 0x00200404, 0x02200404, 0x00202404, 0x02202404, 0x10000000, 0x12000000, 0x10002000, 0x12002000, 0x10200000, 0x12200000, 0x10202000, 0x12202000, 0x10000004, 0x12000004, 0x10002004, 0x12002004, 0x10200004, 0x12200004, 0x10202004, 0x12202004, 0x10000400, 0x12000400, 0x10002400, 0x12002400, 0x10200400, 0x12200400, 0x10202400, 0x12202400, 0x10000404, 0x12000404, 0x10002404, 0x12002404, 0x10200404, 0x12200404, 0x10202404, 0x12202404, }, { /* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */ 0x00000000, 0x00000001, 0x00040000, 0x00040001, 0x01000000, 0x01000001, 0x01040000, 0x01040001, 0x00000002, 0x00000003, 0x00040002, 0x00040003, 0x01000002, 0x01000003, 0x01040002, 0x01040003, 0x00000200, 0x00000201, 0x00040200, 0x00040201, 0x01000200, 0x01000201, 0x01040200, 0x01040201, 0x00000202, 0x00000203, 0x00040202, 0x00040203, 0x01000202, 0x01000203, 0x01040202, 0x01040203, 0x08000000, 0x08000001, 0x08040000, 0x08040001, 0x09000000, 0x09000001, 0x09040000, 0x09040001, 0x08000002, 0x08000003, 0x08040002, 0x08040003, 0x09000002, 0x09000003, 0x09040002, 0x09040003, 0x08000200, 0x08000201, 0x08040200, 0x08040201, 0x09000200, 0x09000201, 0x09040200, 0x09040201, 0x08000202, 0x08000203, 0x08040202, 0x08040203, 0x09000202, 0x09000203, 0x09040202, 0x09040203, }, { /* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */ 0x00000000, 0x00100000, 0x00000100, 0x00100100, 0x00000008, 0x00100008, 0x00000108, 0x00100108, 0x00001000, 0x00101000, 0x00001100, 0x00101100, 0x00001008, 0x00101008, 0x00001108, 0x00101108, 0x04000000, 0x04100000, 0x04000100, 0x04100100, 0x04000008, 0x04100008, 0x04000108, 0x04100108, 0x04001000, 0x04101000, 0x04001100, 0x04101100, 0x04001008, 0x04101008, 0x04001108, 0x04101108, 0x00020000, 0x00120000, 0x00020100, 0x00120100, 0x00020008, 0x00120008, 0x00020108, 0x00120108, 0x00021000, 0x00121000, 0x00021100, 0x00121100, 0x00021008, 0x00121008, 0x00021108, 0x00121108, 0x04020000, 0x04120000, 0x04020100, 0x04120100, 0x04020008, 0x04120008, 0x04020108, 0x04120108, 0x04021000, 0x04121000, 0x04021100, 0x04121100, 0x04021008, 0x04121008, 0x04021108, 0x04121108, }, { /* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ 0x00000000, 0x10000000, 0x00010000, 0x10010000, 0x00000004, 0x10000004, 0x00010004, 0x10010004, 0x20000000, 0x30000000, 0x20010000, 0x30010000, 0x20000004, 0x30000004, 0x20010004, 0x30010004, 0x00100000, 0x10100000, 0x00110000, 0x10110000, 0x00100004, 0x10100004, 0x00110004, 0x10110004, 0x20100000, 0x30100000, 0x20110000, 0x30110000, 0x20100004, 0x30100004, 0x20110004, 0x30110004, 0x00001000, 0x10001000, 0x00011000, 0x10011000, 0x00001004, 0x10001004, 0x00011004, 0x10011004, 0x20001000, 0x30001000, 0x20011000, 0x30011000, 0x20001004, 0x30001004, 0x20011004, 0x30011004, 0x00101000, 0x10101000, 0x00111000, 0x10111000, 0x00101004, 0x10101004, 0x00111004, 0x10111004, 0x20101000, 0x30101000, 0x20111000, 0x30111000, 0x20101004, 0x30101004, 0x20111004, 0x30111004, }, { /* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */ 0x00000000, 0x08000000, 0x00000008, 0x08000008, 0x00000400, 0x08000400, 0x00000408, 0x08000408, 0x00020000, 0x08020000, 0x00020008, 0x08020008, 0x00020400, 0x08020400, 0x00020408, 0x08020408, 0x00000001, 0x08000001, 0x00000009, 0x08000009, 0x00000401, 0x08000401, 0x00000409, 0x08000409, 0x00020001, 0x08020001, 0x00020009, 0x08020009, 0x00020401, 0x08020401, 0x00020409, 0x08020409, 0x02000000, 0x0A000000, 0x02000008, 0x0A000008, 0x02000400, 0x0A000400, 0x02000408, 0x0A000408, 0x02020000, 0x0A020000, 0x02020008, 0x0A020008, 0x02020400, 0x0A020400, 0x02020408, 0x0A020408, 0x02000001, 0x0A000001, 0x02000009, 0x0A000009, 0x02000401, 0x0A000401, 0x02000409, 0x0A000409, 0x02020001, 0x0A020001, 0x02020009, 0x0A020009, 0x02020401, 0x0A020401, 0x02020409, 0x0A020409, }, { /* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */ 0x00000000, 0x00000100, 0x00080000, 0x00080100, 0x01000000, 0x01000100, 0x01080000, 0x01080100, 0x00000010, 0x00000110, 0x00080010, 0x00080110, 0x01000010, 0x01000110, 0x01080010, 0x01080110, 0x00200000, 0x00200100, 0x00280000, 0x00280100, 0x01200000, 0x01200100, 0x01280000, 0x01280100, 0x00200010, 0x00200110, 0x00280010, 0x00280110, 0x01200010, 0x01200110, 0x01280010, 0x01280110, 0x00000200, 0x00000300, 0x00080200, 0x00080300, 0x01000200, 0x01000300, 0x01080200, 0x01080300, 0x00000210, 0x00000310, 0x00080210, 0x00080310, 0x01000210, 0x01000310, 0x01080210, 0x01080310, 0x00200200, 0x00200300, 0x00280200, 0x00280300, 0x01200200, 0x01200300, 0x01280200, 0x01280300, 0x00200210, 0x00200310, 0x00280210, 0x00280310, 0x01200210, 0x01200310, 0x01280210, 0x01280310, }, { /* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */ 0x00000000, 0x04000000, 0x00040000, 0x04040000, 0x00000002, 0x04000002, 0x00040002, 0x04040002, 0x00002000, 0x04002000, 0x00042000, 0x04042000, 0x00002002, 0x04002002, 0x00042002, 0x04042002, 0x00000020, 0x04000020, 0x00040020, 0x04040020, 0x00000022, 0x04000022, 0x00040022, 0x04040022, 0x00002020, 0x04002020, 0x00042020, 0x04042020, 0x00002022, 0x04002022, 0x00042022, 0x04042022, 0x00000800, 0x04000800, 0x00040800, 0x04040800, 0x00000802, 0x04000802, 0x00040802, 0x04040802, 0x00002800, 0x04002800, 0x00042800, 0x04042800, 0x00002802, 0x04002802, 0x00042802, 0x04042802, 0x00000820, 0x04000820, 0x00040820, 0x04040820, 0x00000822, 0x04000822, 0x00040822, 0x04040822, 0x00002820, 0x04002820, 0x00042820, 0x04042820, 0x00002822, 0x04002822, 0x00042822, 0x04042822, }, }; private static final int SPtrans[][] = { { /* nibble 0 */ 0x00820200, 0x00020000, 0x80800000, 0x80820200, 0x00800000, 0x80020200, 0x80020000, 0x80800000, 0x80020200, 0x00820200, 0x00820000, 0x80000200, 0x80800200, 0x00800000, 0x00000000, 0x80020000, 0x00020000, 0x80000000, 0x00800200, 0x00020200, 0x80820200, 0x00820000, 0x80000200, 0x00800200, 0x80000000, 0x00000200, 0x00020200, 0x80820000, 0x00000200, 0x80800200, 0x80820000, 0x00000000, 0x00000000, 0x80820200, 0x00800200, 0x80020000, 0x00820200, 0x00020000, 0x80000200, 0x00800200, 0x80820000, 0x00000200, 0x00020200, 0x80800000, 0x80020200, 0x80000000, 0x80800000, 0x00820000, 0x80820200, 0x00020200, 0x00820000, 0x80800200, 0x00800000, 0x80000200, 0x80020000, 0x00000000, 0x00020000, 0x00800000, 0x80800200, 0x00820200, 0x80000000, 0x80820000, 0x00000200, 0x80020200, }, { /* nibble 1 */ 0x10042004, 0x00000000, 0x00042000, 0x10040000, 0x10000004, 0x00002004, 0x10002000, 0x00042000, 0x00002000, 0x10040004, 0x00000004, 0x10002000, 0x00040004, 0x10042000, 0x10040000, 0x00000004, 0x00040000, 0x10002004, 0x10040004, 0x00002000, 0x00042004, 0x10000000, 0x00000000, 0x00040004, 0x10002004, 0x00042004, 0x10042000, 0x10000004, 0x10000000, 0x00040000, 0x00002004, 0x10042004, 0x00040004, 0x10042000, 0x10002000, 0x00042004, 0x10042004, 0x00040004, 0x10000004, 0x00000000, 0x10000000, 0x00002004, 0x00040000, 0x10040004, 0x00002000, 0x10000000, 0x00042004, 0x10002004, 0x10042000, 0x00002000, 0x00000000, 0x10000004, 0x00000004, 0x10042004, 0x00042000, 0x10040000, 0x10040004, 0x00040000, 0x00002004, 0x10002000, 0x10002004, 0x00000004, 0x10040000, 0x00042000, }, { /* nibble 2 */ 0x41000000, 0x01010040, 0x00000040, 0x41000040, 0x40010000, 0x01000000, 0x41000040, 0x00010040, 0x01000040, 0x00010000, 0x01010000, 0x40000000, 0x41010040, 0x40000040, 0x40000000, 0x41010000, 0x00000000, 0x40010000, 0x01010040, 0x00000040, 0x40000040, 0x41010040, 0x00010000, 0x41000000, 0x41010000, 0x01000040, 0x40010040, 0x01010000, 0x00010040, 0x00000000, 0x01000000, 0x40010040, 0x01010040, 0x00000040, 0x40000000, 0x00010000, 0x40000040, 0x40010000, 0x01010000, 0x41000040, 0x00000000, 0x01010040, 0x00010040, 0x41010000, 0x40010000, 0x01000000, 0x41010040, 0x40000000, 0x40010040, 0x41000000, 0x01000000, 0x41010040, 0x00010000, 0x01000040, 0x41000040, 0x00010040, 0x01000040, 0x00000000, 0x41010000, 0x40000040, 0x41000000, 0x40010040, 0x00000040, 0x01010000, }, { /* nibble 3 */ 0x00100402, 0x04000400, 0x00000002, 0x04100402, 0x00000000, 0x04100000, 0x04000402, 0x00100002, 0x04100400, 0x04000002, 0x04000000, 0x00000402, 0x04000002, 0x00100402, 0x00100000, 0x04000000, 0x04100002, 0x00100400, 0x00000400, 0x00000002, 0x00100400, 0x04000402, 0x04100000, 0x00000400, 0x00000402, 0x00000000, 0x00100002, 0x04100400, 0x04000400, 0x04100002, 0x04100402, 0x00100000, 0x04100002, 0x00000402, 0x00100000, 0x04000002, 0x00100400, 0x04000400, 0x00000002, 0x04100000, 0x04000402, 0x00000000, 0x00000400, 0x00100002, 0x00000000, 0x04100002, 0x04100400, 0x00000400, 0x04000000, 0x04100402, 0x00100402, 0x00100000, 0x04100402, 0x00000002, 0x04000400, 0x00100402, 0x00100002, 0x00100400, 0x04100000, 0x04000402, 0x00000402, 0x04000000, 0x04000002, 0x04100400, }, { /* nibble 4 */ 0x02000000, 0x00004000, 0x00000100, 0x02004108, 0x02004008, 0x02000100, 0x00004108, 0x02004000, 0x00004000, 0x00000008, 0x02000008, 0x00004100, 0x02000108, 0x02004008, 0x02004100, 0x00000000, 0x00004100, 0x02000000, 0x00004008, 0x00000108, 0x02000100, 0x00004108, 0x00000000, 0x02000008, 0x00000008, 0x02000108, 0x02004108, 0x00004008, 0x02004000, 0x00000100, 0x00000108, 0x02004100, 0x02004100, 0x02000108, 0x00004008, 0x02004000, 0x00004000, 0x00000008, 0x02000008, 0x02000100, 0x02000000, 0x00004100, 0x02004108, 0x00000000, 0x00004108, 0x02000000, 0x00000100, 0x00004008, 0x02000108, 0x00000100, 0x00000000, 0x02004108, 0x02004008, 0x02004100, 0x00000108, 0x00004000, 0x00004100, 0x02004008, 0x02000100, 0x00000108, 0x00000008, 0x00004108, 0x02004000, 0x02000008, }, { /* nibble 5 */ 0x20000010, 0x00080010, 0x00000000, 0x20080800, 0x00080010, 0x00000800, 0x20000810, 0x00080000, 0x00000810, 0x20080810, 0x00080800, 0x20000000, 0x20000800, 0x20000010, 0x20080000, 0x00080810, 0x00080000, 0x20000810, 0x20080010, 0x00000000, 0x00000800, 0x00000010, 0x20080800, 0x20080010, 0x20080810, 0x20080000, 0x20000000, 0x00000810, 0x00000010, 0x00080800, 0x00080810, 0x20000800, 0x00000810, 0x20000000, 0x20000800, 0x00080810, 0x20080800, 0x00080010, 0x00000000, 0x20000800, 0x20000000, 0x00000800, 0x20080010, 0x00080000, 0x00080010, 0x20080810, 0x00080800, 0x00000010, 0x20080810, 0x00080800, 0x00080000, 0x20000810, 0x20000010, 0x20080000, 0x00080810, 0x00000000, 0x00000800, 0x20000010, 0x20000810, 0x20080800, 0x20080000, 0x00000810, 0x00000010, 0x20080010, }, { /* nibble 6 */ 0x00001000, 0x00000080, 0x00400080, 0x00400001, 0x00401081, 0x00001001, 0x00001080, 0x00000000, 0x00400000, 0x00400081, 0x00000081, 0x00401000, 0x00000001, 0x00401080, 0x00401000, 0x00000081, 0x00400081, 0x00001000, 0x00001001, 0x00401081, 0x00000000, 0x00400080, 0x00400001, 0x00001080, 0x00401001, 0x00001081, 0x00401080, 0x00000001, 0x00001081, 0x00401001, 0x00000080, 0x00400000, 0x00001081, 0x00401000, 0x00401001, 0x00000081, 0x00001000, 0x00000080, 0x00400000, 0x00401001, 0x00400081, 0x00001081, 0x00001080, 0x00000000, 0x00000080, 0x00400001, 0x00000001, 0x00400080, 0x00000000, 0x00400081, 0x00400080, 0x00001080, 0x00000081, 0x00001000, 0x00401081, 0x00400000, 0x00401080, 0x00000001, 0x00001001, 0x00401081, 0x00400001, 0x00401080, 0x00401000, 0x00001001, }, { /* nibble 7 */ 0x08200020, 0x08208000, 0x00008020, 0x00000000, 0x08008000, 0x00200020, 0x08200000, 0x08208020, 0x00000020, 0x08000000, 0x00208000, 0x00008020, 0x00208020, 0x08008020, 0x08000020, 0x08200000, 0x00008000, 0x00208020, 0x00200020, 0x08008000, 0x08208020, 0x08000020, 0x00000000, 0x00208000, 0x08000000, 0x00200000, 0x08008020, 0x08200020, 0x00200000, 0x00008000, 0x08208000, 0x00000020, 0x00200000, 0x00008000, 0x08000020, 0x08208020, 0x00008020, 0x08000000, 0x00000000, 0x00208000, 0x08200020, 0x08008020, 0x08008000, 0x00200020, 0x08208000, 0x00000020, 0x00200020, 0x08008000, 0x08208020, 0x00200000, 0x08200000, 0x08000020, 0x00208000, 0x00008020, 0x08008020, 0x08200000, 0x00000020, 0x08208000, 0x00208020, 0x00000000, 0x08000000, 0x08200020, 0x00008000, 0x00208020 } }; private static final int cov_2char[] = { 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A }; private static final int byteToUnsigned(byte b) { int value = (int) b; return (value >= 0 ? value : value + 256); } private static int fourBytesToInt(byte b[], int offset) { int value; value = byteToUnsigned(b[offset++]); value |= (byteToUnsigned(b[offset++]) << 8); value |= (byteToUnsigned(b[offset++]) << 16); value |= (byteToUnsigned(b[offset++]) << 24); return (value); } private static final void intToFourBytes(int iValue, byte b[], int offset) { b[offset++] = (byte) ((iValue) & 0xff); b[offset++] = (byte) ((iValue >>> 8) & 0xff); b[offset++] = (byte) ((iValue >>> 16) & 0xff); b[offset++] = (byte) ((iValue >>> 24) & 0xff); } private static final void PERM_OP(int a, int b, int n, int m, int results[]) { int t; t = ((a >>> n) ^ b) & m; a ^= t << n; b ^= t; results[0] = a; results[1] = b; } private static final int HPERM_OP(int a, int n, int m) { int t; t = ((a << (16 - n)) ^ a) & m; a = a ^ t ^ (t >>> (16 - n)); return (a); } private static int[] des_set_key(byte key[]) { int schedule[] = new int[ITERATIONS * 2]; int c = fourBytesToInt(key, 0); int d = fourBytesToInt(key, 4); int results[] = new int[2]; PERM_OP(d, c, 4, 0x0f0f0f0f, results); d = results[0]; c = results[1]; c = HPERM_OP(c, -2, 0xcccc0000); d = HPERM_OP(d, -2, 0xcccc0000); PERM_OP(d, c, 1, 0x55555555, results); d = results[0]; c = results[1]; PERM_OP(c, d, 8, 0x00ff00ff, results); c = results[0]; d = results[1]; PERM_OP(d, c, 1, 0x55555555, results); d = results[0]; c = results[1]; d = (((d & 0x000000ff) << 16) | (d & 0x0000ff00) | ((d & 0x00ff0000) >>> 16) | ((c & 0xf0000000) >>> 4)); c &= 0x0fffffff; int s, t; int j = 0; for (int i = 0; i < ITERATIONS; i++) { if (shifts2[i]) { c = (c >>> 2) | (c << 26); d = (d >>> 2) | (d << 26); } else { c = (c >>> 1) | (c << 27); d = (d >>> 1) | (d << 27); } c &= 0x0fffffff; d &= 0x0fffffff; s = skb[0][(c) & 0x3f] | skb[1][((c >>> 6) & 0x03) | ((c >>> 7) & 0x3c)] | skb[2][((c >>> 13) & 0x0f) | ((c >>> 14) & 0x30)] | skb[3][((c >>> 20) & 0x01) | ((c >>> 21) & 0x06) | ((c >>> 22) & 0x38)]; t = skb[4][(d) & 0x3f] | skb[5][((d >>> 7) & 0x03) | ((d >>> 8) & 0x3c)] | skb[6][(d >>> 15) & 0x3f] | skb[7][((d >>> 21) & 0x0f) | ((d >>> 22) & 0x30)]; schedule[j++] = ((t << 16) | (s & 0x0000ffff)) & 0xffffffff; s = ((s >>> 16) | (t & 0xffff0000)); s = (s << 4) | (s >>> 28); schedule[j++] = s & 0xffffffff; } return (schedule); } private static final int D_ENCRYPT(int L, int R, int S, int E0, int E1, int s[]) { int t, u, v; v = R ^ (R >>> 16); u = v & E0; v = v & E1; u = (u ^ (u << 16)) ^ R ^ s[S]; t = (v ^ (v << 16)) ^ R ^ s[S + 1]; t = (t >>> 4) | (t << 28); L ^= SPtrans[1][(t) & 0x3f] | SPtrans[3][(t >>> 8) & 0x3f] | SPtrans[5][(t >>> 16) & 0x3f] | SPtrans[7][(t >>> 24) & 0x3f] | SPtrans[0][(u) & 0x3f] | SPtrans[2][(u >>> 8) & 0x3f] | SPtrans[4][(u >>> 16) & 0x3f] | SPtrans[6][(u >>> 24) & 0x3f]; return (L); } private static final int[] body(int schedule[], int Eswap0, int Eswap1) { int left = 0; int right = 0; int t = 0; for (int j = 0; j < 25; j++) { for (int i = 0; i < ITERATIONS * 2; i += 4) { left = D_ENCRYPT(left, right, i, Eswap0, Eswap1, schedule); right = D_ENCRYPT(right, left, i + 2, Eswap0, Eswap1, schedule); } t = left; left = right; right = t; } t = right; right = (left >>> 1) | (left << 31); left = (t >>> 1) | (t << 31); left &= 0xffffffff; right &= 0xffffffff; int results[] = new int[2]; PERM_OP(right, left, 1, 0x55555555, results); right = results[0]; left = results[1]; PERM_OP(left, right, 8, 0x00ff00ff, results); left = results[0]; right = results[1]; PERM_OP(right, left, 2, 0x33333333, results); right = results[0]; left = results[1]; PERM_OP(left, right, 16, 0x0000ffff, results); left = results[0]; right = results[1]; PERM_OP(right, left, 4, 0x0f0f0f0f, results); right = results[0]; left = results[1]; int out[] = new int[2]; out[0] = left; out[1] = right; return (out); } /** * Perform a Unix crypt() operation */ public static final String crypt(String salt, String original) { while (salt.length() < 2) salt += "A"; StringBuilder buffer = new StringBuilder(" "); char charZero = salt.charAt(0); char charOne = salt.charAt(1); buffer.setCharAt(0, charZero); buffer.setCharAt(1, charOne); int Eswap0 = con_salt[(int) charZero]; int Eswap1 = con_salt[(int) charOne] << 4; byte key[] = new byte[8]; for (int i = 0; i < key.length; i++) key[i] = (byte) 0; for (int i = 0; i < key.length && i < original.length(); i++) { int iChar = (int) original.charAt(i); key[i] = (byte) (iChar << 1); } int schedule[] = des_set_key(key); int out[] = body(schedule, Eswap0, Eswap1); byte b[] = new byte[9]; intToFourBytes(out[0], b, 0); intToFourBytes(out[1], b, 4); b[8] = 0; for (int i = 2, y = 0, u = 0x80; i < 13; i++) { for (int j = 0, c = 0; j < 6; j++) { c <<= 1; if (((int) b[y] & u) != 0) c |= 1; u >>>= 1; if (u == 0) { y++; u = 0x80; } buffer.setCharAt(i, (char) cov_2char[c]); } } return (buffer.toString()); } public static String joinAddress(Address[] a) { String s = ""; if (a != null) { for (int i = 0; i < a.length; i++) { s += a[i].toString() + ", "; } if (s.length() >= 2) { s = s.substring(0, s.length() - 2); } } else { s = ""; } return s; } /** * Calculate session-ID for a session. * * @param a Adress of the remote host * @param h Requestheader of the remote user agent * @returns Session-ID */ public static String calcSessionCode(InetAddress a, HTTPRequestHeader h) { String temp = a.toString().replace('\n', ' ') + h.getHeader("User-Agent").replace('\n', ' '); temp = "" + Long.toHexString(Math.abs(temp.hashCode())); if (h.getContent("login") != null && !h.getContent("login").equals("") && h.getPath().startsWith("/login")) { temp += Long.toHexString(Math.abs(h.getContent("login").hashCode())); temp += Long.toHexString(System.currentTimeMillis()); } else if (h.getPath().startsWith("/admin/login")) { temp += "admin"; } return temp; } /** * Encodes and decodes any String given on the command-line. * Unit test. */ public static void main(String[] args) { if (args.length != 1) throw new IllegalArgumentException("SYNTAX: " + Helper.class.getName() + " 'string to en/decode'"); String input = args[0]; //System.err.println(Helper.crypt("AA",args[1])); String crypted = encryptTEA(input); //System.err.println("DES-Crypted: "+crypted); //System.err.println("DES-Decrypted: "+decryptTEA(crypted)); String output = decryptTEA(crypted); if (input.equals(output)) System.exit(0); throw new RuntimeException("Input of (" + input + "), length " + input.length() + ", encrypted then decrypted into (" + output + "), length " + output.length() + '.'); } private static String str_key = "39e858f86df9b909a8c87cb8d9ad599"; public static String encryptTEA(String src) { byte[] key = new BigInteger(str_key, 16).toByteArray(); TEA tea = new TEA(key); byte plainSource[] = src.getBytes(); int enc[] = tea.encode(plainSource, plainSource.length); String s = ""; for (int i = 0; i < enc.length; i++) { s += Integer.toHexString((byte) (enc[i] >>> 24) + 128).toUpperCase() + ":"; s += Integer.toHexString((byte) (enc[i] >>> 16) + 128).toUpperCase() + ":"; s += Integer.toHexString((byte) (enc[i] >>> 8) + 128).toUpperCase() + ":"; s += Integer.toHexString((byte) (enc[i]) + 128).toUpperCase() + ":"; } // log.debug("encryptTEA: Returning "+s); return s; } static private java.util.regex.Pattern nonGraphPattern = java.util.regex.Pattern.compile("[^\\p{Graph}].*"); public static String decryptTEA(String src) { StringTokenizer tok = new StringTokenizer(src, ": "); byte[] key = new BigInteger(str_key, 16).toByteArray(); TEA tea = new TEA(key); byte inb[] = new byte[tok.countTokens()]; for (int i = 0; i < inb.length && tok.hasMoreTokens(); i++) { String s = tok.nextToken(); try { inb[i] = (byte) (Integer.parseInt(s, 16) - 128); } catch (NumberFormatException ex) { throw new NumberFormatException("Could not convert string '" + s + "' to byte."); } } byte dec[] = tea.decode(inb, inb.length); String s = new String(dec); // log.debug("encryptTEA: Returning "+s); java.util.regex.Matcher m = nonGraphPattern.matcher(s); if (!m.find()) return s; log.warn("Executed work-around for TEA decryption bug"); String fixedS = m.replaceFirst(""); if (s.equals(fixedS)) log.warn("The TEA work-around was not needed in this case"); // I believe the rot of the bug is with padding in the TEA.decode() // method(s). I do not have time to fix the real problem there. return fixedS; } /** * Here we figure out which quote level this line has, simply by counting how many * ">" are in front of the line, ignoring all whitespaces. */ public static int getQuoteLevel(String token) { int current_quotelevel = 0; for (int i = 0; i < token.length() && (token.substring(i).startsWith(">") || token.substring(i).startsWith(" ")); i++) { if (token.substring(i).startsWith(">")) current_quotelevel++; } return current_quotelevel; } protected static int findFittingBreakPos(String line, int linesize) { int pos; for (pos = linesize; pos > 0; pos--) { switch (line.charAt(pos)) { case ' ': case '\n': case '\t': case '.': case ',': case ';': case ':': case '!': case '?': return pos + 1; } } return linesize + 1; } public static Enumeration breakLine(String line, int linesize, int quotelevel) { if (line.length() <= linesize) { final String s = line; return new Enumeration() { int count = 0; public boolean hasMoreElements() { return count == 0; } public Object nextElement() { count++; if (count == 1) return s; else return null; } }; } else { int breakpos = findFittingBreakPos(line, linesize); final String first = line.substring(0, breakpos); String rest = ""; for (int i = 0; i < quotelevel; i++) rest += ">"; rest += line.substring(breakpos); final Enumeration enumVar = breakLine(rest, linesize, quotelevel); return new Enumeration() { int count = 0; public boolean hasMoreElements() { return count < 1 || enumVar.hasMoreElements(); } public Object nextElement() { count++; if (count == 1) { return first; } else { return enumVar.nextElement(); } } }; } } static public void logThreads(String label) { ThreadGroup tG = Thread.currentThread().getThreadGroup(); // These pointers are cheap. // Since these counts probably don't count nested items, we have // to allocate liberally. Thread[] threads = new Thread[tG.activeCount() * 10]; ThreadGroup[] threadGroups = new ThreadGroup[tG.activeGroupCount() * 10]; int tCount = tG.enumerate(threads, true); int tgCount = tG.enumerate(threadGroups, true); threadDumperLog.debug(label + ". Recursive counts. ThreadGroups: " + tgCount + ", Threads: " + tCount); for (int i = 0; i < tCount; i++) threadDumperLog.debug(threads[i].toString()); for (int i = 0; i < tgCount; i++) threadDumperLog.debug(threadGroups[i].toString()); } }