/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (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.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2006 Ola Bini <ola@ologix.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
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* decision by deleting the provisions above and replace them with the notice
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***** END LICENSE BLOCK *****/
package org.jruby.ext.openssl;
import java.security.SecureRandom;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyModule;
import org.jruby.RubyNumeric;
import org.jruby.RubyString;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.ByteList;
/**
* @author <a href="mailto:ola.bini@ki.se">Ola Bini</a>
*/
public class Random {
private final static class RandomHolder {
public java.util.Random[] randomizers;
}
public static void createRandom(Ruby runtime, RubyModule ossl) {
RubyModule rand = ossl.defineModuleUnder("Random");
RubyClass osslError = (RubyClass)ossl.getConstant("OpenSSLError");
rand.defineClassUnder("RandomError",osslError,osslError.getAllocator());
rand.defineAnnotatedMethods(Random.class);
RandomHolder holder = new RandomHolder();
holder.randomizers = new java.util.Random[]{new java.util.Random(), new SecureRandom()};
rand.dataWrapStruct(holder);
}
@JRubyMethod(meta=true)
public static IRubyObject seed(IRubyObject recv, IRubyObject arg) {
return recv.getRuntime().getNil();
}
@JRubyMethod(meta=true)
public static IRubyObject load_random_file(IRubyObject recv, IRubyObject arg) {
return recv.getRuntime().getNil();
}
@JRubyMethod(meta=true)
public static IRubyObject write_random_file(IRubyObject recv, IRubyObject arg) {
return recv.getRuntime().getNil();
}
@JRubyMethod(meta=true)
public static IRubyObject random_bytes(IRubyObject recv, IRubyObject arg) {
return generate(recv, arg, 1);
}
@JRubyMethod(meta=true)
public static IRubyObject pseudo_bytes(IRubyObject recv, IRubyObject arg) {
return generate(recv, arg, 0);
}
private static RubyString generate(IRubyObject recv, IRubyObject arg, int ix) {
RandomHolder holder = (RandomHolder)recv.dataGetStruct();
int len = RubyNumeric.fix2int(arg);
if (len < 0 || len > Integer.MAX_VALUE) {
throw recv.getRuntime().newArgumentError("negative string size (or size too big)");
}
byte[] buf = new byte[len];
holder.randomizers[ix].nextBytes(buf);
return RubyString.newString(recv.getRuntime(), new ByteList(buf,false));
}
@JRubyMethod(meta=true)
public static IRubyObject egd(IRubyObject recv, IRubyObject arg) {
return recv.getRuntime().getNil();
}
@JRubyMethod(meta=true)
public static IRubyObject egd_bytes(IRubyObject recv, IRubyObject arg1, IRubyObject arg2) {
return recv.getRuntime().getNil();
}
}