| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * - Neither the name of Oracle nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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| */ |
| |
| // Simple password generator using SecureRandom + stream API |
| |
| // accept optional password length from command line |
| var len = arguments.length? parseInt(arguments[0]) : 8; |
| |
| // Java types used |
| var Collectors = Java.type("java.util.stream.Collectors"); |
| var SecureRandom = Java.type("java.security.SecureRandom"); |
| |
| // allowed password chars |
| var chars = |
| "!@#$%ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; |
| |
| // generated and print password |
| print(new SecureRandom(). |
| ints(len, 0, chars.length). |
| mapToObj(function(i) chars[i]). |
| collect(Collectors.joining(""))); |