01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.security.plugins;
23:
24: import java.io.IOException;
25: import java.io.CharArrayWriter;
26:
27: /** Read a password from the System.in stream. This may be used as a
28: password accessor in conjunction with the JaasSecurityDomain
29: {CLASS}org.jboss.security.plugins.ConsolePassword
30: format of the KeyStorePass attribute.
31:
32: @author Scott.Stark@jboss.org
33: @version $Revison:$
34: */
35: public class ConsolePassword {
36: public ConsolePassword() {
37: }
38:
39: public char[] toCharArray() throws IOException {
40: System.err.print("Enter password: ");
41: CharArrayWriter writer = new CharArrayWriter();
42: int b;
43: while ((b = System.in.read()) >= 0) {
44: if (b == '\r' || b == '\n')
45: break;
46: writer.write(b);
47: }
48: char[] password = writer.toCharArray();
49: writer.reset();
50: for (int n = 0; n < password.length; n++)
51: writer.write('\0');
52: return password;
53: }
54:
55: public static void main(String[] args) throws IOException {
56: ConsolePassword cp = new ConsolePassword();
57: System.out.println(new String(cp.toCharArray()));
58: }
59: }
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