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1: /* CertificateRequestBuilder.java -- 2: Copyright (C) 2006 Free Software Foundation, Inc. 3: 4: This file is a part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2 of the License, or (at 9: your option) any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; if not, write to the Free Software 18: Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 19: USA 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package gnu.javax.net.ssl.provider; 40: 41: import static gnu.javax.net.ssl.provider.CertificateRequest.ClientCertificateType; 42: 43: import java.io.ByteArrayOutputStream; 44: import java.io.IOException; 45: import java.nio.ByteBuffer; 46: import java.util.List; 47: 48: import javax.security.auth.x500.X500Principal; 49: 50: /** 51: * Builder for {@link CertificateRequest} objects. 52: * 53: * @author Casey Marshall (csm@gnu.org) 54: */ 55: public class CertificateRequestBuilder extends CertificateRequest 56: implements Builder 57: { 58: public CertificateRequestBuilder() 59: { 60: super(ByteBuffer.allocate(1024)); 61: } 62: 63: /* (non-Javadoc) 64: * @see gnu.javax.net.ssl.provider.Builder#buffer() 65: */ 66: public ByteBuffer buffer() 67: { 68: return ((ByteBuffer) buffer.duplicate().limit(length())).slice(); 69: } 70: 71: public void setTypes(List<ClientCertificateType> types) 72: { 73: ensureCapacity(types.size() + 3); 74: buffer.put(0, (byte) types.size()); 75: ByteBuffer b = (ByteBuffer) buffer.duplicate().position(1); 76: for (ClientCertificateType type : types) 77: b.put((byte) type.getValue()); 78: } 79: 80: public void setAuthorities(List<X500Principal> authorities) 81: { 82: ByteArrayOutputStream out = new ByteArrayOutputStream(1024); 83: for (X500Principal auth : authorities) 84: { 85: byte[] encoded = auth.getEncoded(); 86: out.write((encoded.length >>> 8) & 0xFF); 87: out.write( encoded.length & 0xFF); 88: try 89: { 90: out.write(encoded); 91: } 92: catch (IOException ignored) 93: { 94: // Ignored; we use a ByteArrayOutputStream. 95: } 96: } 97: byte[] auths = out.toByteArray(); 98: int typesLen = 1 + (buffer.get(0) & 0xFF); 99: int len = typesLen + auths.length + 2; 100: ensureCapacity(len); 101: buffer.putShort(typesLen, (short) auths.length); 102: ((ByteBuffer) buffer.duplicate().position(typesLen + 2)).put(auths); 103: } 104: 105: public void ensureCapacity(final int capacity) 106: { 107: if (buffer.capacity() >= capacity) 108: return; 109: ByteBuffer newBuffer = ByteBuffer.allocate(capacity); 110: newBuffer.duplicate().put(buffer); 111: buffer = newBuffer; 112: } 113: }