Showing the changes to java/pkg/sun/security/util/Password.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,159 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2003, 2009, 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 | package sun.security.util; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import java.nio.*; | ||
| 30 | import java.nio.charset.*; | ||
| 31 | import java.util.Arrays; | ||
| 32 | |||
| 33 | /** | ||
| 34 | * A utility class for reading passwords | ||
| 35 | * | ||
| 36 | */ | ||
| 37 | public class Password { | ||
| 38 | /** Reads user password from given input stream. */ | ||
| 39 | public static char[] readPassword(InputStream in) throws IOException { | ||
| 40 | return readPassword(in, false); | ||
| 41 | } | ||
| 42 | |||
| 43 | /** Reads user password from given input stream. | ||
| 44 | * @param isEchoOn true if the password should be echoed on the screen | ||
| 45 | */ | ||
| 46 | public static char[] readPassword(InputStream in, boolean isEchoOn) | ||
| 47 | throws IOException { | ||
| 48 | |||
| 49 | char[] consoleEntered = null; | ||
| 50 | byte[] consoleBytes = null; | ||
| 51 | |||
| 52 | try { | ||
| 53 | // Use the new java.io.Console class | ||
| 54 | Console con = null; | ||
| 55 | if (!isEchoOn && in == System.in && ((con = System.console()) != null)) { | ||
| 56 | consoleEntered = con.readPassword(); | ||
| 57 | // readPassword returns "" if you just print ENTER, | ||
| 58 | // to be compatible with old Password class, change to null | ||
| 59 | if (consoleEntered != null && consoleEntered.length == 0) { | ||
| 60 | return null; | ||
| 61 | } | ||
| 62 | consoleBytes = convertToBytes(consoleEntered); | ||
| 63 | in = new ByteArrayInputStream(consoleBytes); | ||
| 64 | } | ||
| 65 | |||
| 66 | // Rest of the lines still necessary for KeyStoreLoginModule | ||
| 67 | // and when there is no console. | ||
| 68 | |||
| 69 | char[] lineBuffer; | ||
| 70 | char[] buf; | ||
| 71 | int i; | ||
| 72 | |||
| 73 | buf = lineBuffer = new char[128]; | ||
| 74 | |||
| 75 | int room = buf.length; | ||
| 76 | int offset = 0; | ||
| 77 | int c; | ||
| 78 | |||
| 79 | boolean done = false; | ||
| 80 | while (!done) { | ||
| 81 | switch (c = in.read()) { | ||
| 82 | case -1: | ||
| 83 | case '\n': | ||
| 84 | done = true; | ||
| 85 | break; | ||
| 86 | |||
| 87 | case '\r': | ||
| 88 | int c2 = in.read(); | ||
| 89 | if ((c2 != '\n') && (c2 != -1)) { | ||
| 90 | if (!(in instanceof PushbackInputStream)) { | ||
| 91 | in = new PushbackInputStream(in); | ||
| 92 | } | ||
| 93 | ((PushbackInputStream)in).unread(c2); | ||
| 94 | } else { | ||
| 95 | done = true; | ||
| 96 | break; | ||
| 97 | } | ||
| 98 | |||
| 99 | default: | ||
| 100 | if (--room < 0) { | ||
| 101 | buf = new char[offset + 128]; | ||
| 102 | room = buf.length - offset - 1; | ||
| 103 | System.arraycopy(lineBuffer, 0, buf, 0, offset); | ||
| 104 | Arrays.fill(lineBuffer, ' '); | ||
| 105 | lineBuffer = buf; | ||
| 106 | } | ||
| 107 | buf[offset++] = (char) c; | ||
| 108 | break; | ||
| 109 | } | ||
| 110 | } | ||
| 111 | |||
| 112 | if (offset == 0) { | ||
| 113 | return null; | ||
| 114 | } | ||
| 115 | |||
| 116 | char[] ret = new char[offset]; | ||
| 117 | System.arraycopy(buf, 0, ret, 0, offset); | ||
| 118 | Arrays.fill(buf, ' '); | ||
| 119 | |||
| 120 | return ret; | ||
| 121 | } finally { | ||
| 122 | if (consoleEntered != null) { | ||
| 123 | Arrays.fill(consoleEntered, ' '); | ||
| 124 | } | ||
| 125 | if (consoleBytes != null) { | ||
| 126 | Arrays.fill(consoleBytes, (byte)0); | ||
| 127 | } | ||
| 128 | } | ||
| 129 | } | ||
| 130 | |||
| 131 | /** | ||
| 132 | * Change a password read from Console.readPassword() into | ||
| 133 | * its original bytes. | ||
| 134 | * | ||
| 135 | * @param pass a char[] | ||
| 136 | * @return its byte[] format, similar to new String(pass).getBytes() | ||
| 137 | */ | ||
| 138 | private static byte[] convertToBytes(char[] pass) { | ||
| 139 | if (enc == null) { | ||
| 140 | synchronized (Password.class) { | ||
| 141 | enc = sun.misc.SharedSecrets.getJavaIOAccess() | ||
| 142 | .charset() | ||
| 143 | .newEncoder() | ||
| 144 | .onMalformedInput(CodingErrorAction.REPLACE) | ||
| 145 | .onUnmappableCharacter(CodingErrorAction.REPLACE); | ||
| 146 | } | ||
| 147 | } | ||
| 148 | byte[] ba = new byte[(int)(enc.maxBytesPerChar() * pass.length)]; | ||
| 149 | ByteBuffer bb = ByteBuffer.wrap(ba); | ||
| 150 | synchronized (enc) { | ||
| 151 | enc.reset().encode(CharBuffer.wrap(pass), bb, true); | ||
| 152 | } | ||
| 153 | if (bb.position() < ba.length) { | ||
| 154 | ba[bb.position()] = '\n'; | ||
| 155 | } | ||
| 156 | return ba; | ||
| 157 | } | ||
| 158 | private static volatile CharsetEncoder enc; | ||
| 159 | } | ||