com.bugvm.conscrypt.CertificateMessage Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.bugvm.conscrypt;
import java.io.IOException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
/**
* Represents server/client certificate message
* @see TLS
* 1.0 spec., 7.4.2. Server certificate; 7.4.6. Client certificate
*
*/
public class CertificateMessage extends Message {
/**
* Certificates
*/
X509Certificate[] certs;
/**
* Certificates in encoded form
*/
byte[][] encoded_certs;
/**
* Creates inbound message
*
* @param in
* @param length
* @throws IOException
*/
public CertificateMessage(HandshakeIODataStream in, int length) throws IOException {
int l = in.readUint24(); // total_length
if (l == 0) { // message contais no certificates
if (length != 3) { // no more bytes after total_length
fatalAlert(AlertProtocol.DECODE_ERROR,
"DECODE ERROR: incorrect CertificateMessage");
}
certs = new X509Certificate[0];
encoded_certs = new byte[0][0];
this.length = 3;
return;
}
CertificateFactory cf;
try {
cf = CertificateFactory.getInstance("X509");
} catch (CertificateException e) {
fatalAlert(AlertProtocol.INTERNAL_ERROR, "INTERNAL ERROR", e);
return;
}
ArrayList certsList = new ArrayList();
int size = 0;
int enc_size = 0;
while (l > 0) {
size = in.readUint24();
l -= 3;
try {
certsList.add((X509Certificate) cf.generateCertificate(in));
} catch (CertificateException e) {
fatalAlert(AlertProtocol.DECODE_ERROR, "DECODE ERROR", e);
}
l -= size;
enc_size += size;
}
certs = certsList.toArray(new X509Certificate[certsList.size()]);
this.length = 3 + 3 * certs.length + enc_size;
if (this.length != length) {
fatalAlert(AlertProtocol.DECODE_ERROR, "DECODE ERROR: incorrect CertificateMessage");
}
}
/**
* Creates outbound message
*
* @param certs
*/
public CertificateMessage(X509Certificate[] certs) {
if (certs == null) {
this.certs = new X509Certificate[0];
encoded_certs = new byte[0][0];
length = 3;
return;
}
this.certs = certs;
if (encoded_certs == null) {
encoded_certs = new byte[certs.length][];
for (int i = 0; i < certs.length; i++) {
try {
encoded_certs[i] = certs[i].getEncoded();
} catch (CertificateEncodingException e) {
fatalAlert(AlertProtocol.INTERNAL_ERROR, "INTERNAL ERROR",
e);
}
}
}
length = 3 + 3 * encoded_certs.length;
for (int i = 0; i < encoded_certs.length; i++) {
length += encoded_certs[i].length;
}
}
/**
* Sends message
*
* @param out
*/
@Override
public void send(HandshakeIODataStream out) {
int total_length = 0;
if (encoded_certs == null) {
encoded_certs = new byte[certs.length][];
for (int i = 0; i < certs.length; i++) {
try {
encoded_certs[i] = certs[i].getEncoded();
} catch (CertificateEncodingException e) {
fatalAlert(AlertProtocol.INTERNAL_ERROR, "INTERNAL ERROR",
e);
}
}
}
total_length = 3 * encoded_certs.length;
for (int i = 0; i < encoded_certs.length; i++) {
total_length += encoded_certs[i].length;
}
out.writeUint24(total_length);
for (int i = 0; i < encoded_certs.length; i++) {
out.writeUint24(encoded_certs[i].length);
out.write(encoded_certs[i]);
}
}
public String getAuthType() {
return certs[0].getPublicKey().getAlgorithm();
}
/**
* Returns message type
*/
@Override
public int getType() {
return Handshake.CERTIFICATE;
}
}