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Qetcher Java client, OSGi bundle, minimal dependencies
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed 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 org.conscrypt;
import static org.conscrypt.Preconditions.checkNotNull;
import java.security.Principal;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Collections;
import java.util.List;
import javax.net.ssl.SSLPeerUnverifiedException;
import javax.net.ssl.SSLSessionBindingEvent;
import javax.net.ssl.SSLSessionBindingListener;
import javax.net.ssl.SSLSessionContext;
/**
* A session that is dedicated a single connection and operates directly on the underlying
* {@code SSL}.
*/
final class ActiveSession implements ConscryptSession {
private final NativeSsl ssl;
private AbstractSessionContext sessionContext;
private byte[] id;
private long creationTime;
private String protocol;
private String peerHost;
private int peerPort = -1;
private long lastAccessedTime = 0;
private volatile javax.security.cert.X509Certificate[] peerCertificateChain;
private X509Certificate[] localCertificates;
private X509Certificate[] peerCertificates;
private byte[] peerCertificateOcspData;
private byte[] peerTlsSctData;
ActiveSession(NativeSsl ssl, AbstractSessionContext sessionContext) {
this.ssl = checkNotNull(ssl, "ssl");
this.sessionContext = checkNotNull(sessionContext, "sessionContext");
}
@Override
public byte[] getId() {
if (id == null) {
synchronized (ssl) {
id = ssl.getSessionId();
}
}
return id != null ? id.clone() : EmptyArray.BYTE;
}
@Override
public SSLSessionContext getSessionContext() {
return isValid() ? sessionContext : null;
}
@Override
public long getCreationTime() {
if (creationTime == 0) {
synchronized (ssl) {
creationTime = ssl.getTime();
}
}
return creationTime;
}
/**
* Returns the last time this SSL session was accessed. Accessing
* here is to mean that a new connection with the same SSL context data was
* established.
*
* @return the session's last access time in milliseconds since the epoch
*/
// TODO(nathanmittler): Does lastAccessedTime need to account for session reuse?
@Override
public long getLastAccessedTime() {
return lastAccessedTime == 0 ? getCreationTime() : lastAccessedTime;
}
void setLastAccessedTime(long accessTimeMillis) {
lastAccessedTime = accessTimeMillis;
}
/**
* Returns the OCSP stapled response. Returns a copy of the internal arrays.
*
* The method signature matches
* Java
* 9.
*
* @see RFC 6066
* @see RFC 6961
*/
@Override
public List getStatusResponses() {
if (peerCertificateOcspData == null) {
return Collections.emptyList();
}
return Collections.singletonList(peerCertificateOcspData.clone());
}
/**
* Returns the signed certificate timestamp (SCT) received from the peer. Returns a
* copy of the internal array.
*
* @see RFC 6962
*/
@Override
public byte[] getPeerSignedCertificateTimestamp() {
if (peerTlsSctData == null) {
return null;
}
return peerTlsSctData.clone();
}
@Override
public String getRequestedServerName() {
synchronized (ssl) {
return ssl.getRequestedServerName();
}
}
@Override
public void invalidate() {
synchronized (ssl) {
ssl.setTimeout(0L);
}
}
@Override
public boolean isValid() {
synchronized (ssl) {
long creationTimeMillis = ssl.getTime();
long timeoutMillis = ssl.getTimeout();
return (System.currentTimeMillis() - timeoutMillis) < creationTimeMillis;
}
}
@Override
public void putValue(String name, Object value) {
throw new UnsupportedOperationException(
"All calls to this method should be intercepted by ProvidedSessionDecorator.");
}
@Override
public Object getValue(String name) {
throw new UnsupportedOperationException(
"All calls to this method should be intercepted by ProvidedSessionDecorator.");
}
@Override
public void removeValue(String name) {
throw new UnsupportedOperationException(
"All calls to this method should be intercepted by ProvidedSessionDecorator.");
}
@Override
public String[] getValueNames() {
throw new UnsupportedOperationException(
"All calls to this method should be intercepted by ProvidedSessionDecorator.");
}
@Override
public X509Certificate[] getPeerCertificates() throws SSLPeerUnverifiedException {
checkPeerCertificatesPresent();
return peerCertificates.clone();
}
@Override
public Certificate[] getLocalCertificates() {
return localCertificates == null ? null : localCertificates.clone();
}
/**
* Returns the certificate(s) of the peer in this SSL session
* used in the handshaking phase of the connection.
* Please notice hat this method is superseded by
* getPeerCertificates().
* @return an array of X509 certificates (the peer's one first and then
* eventually that of the certification authority) or null if no
* certificate were used during the SSL connection.
* @throws SSLPeerUnverifiedException if either a non-X.509 certificate
* was used (i.e. Kerberos certificates) or the peer could not
* be verified.
*/
@Override
public javax.security.cert.X509Certificate[] getPeerCertificateChain()
throws SSLPeerUnverifiedException {
checkPeerCertificatesPresent();
// TODO(nathanmittler): Should we clone?
javax.security.cert.X509Certificate[] result = peerCertificateChain;
if (result == null) {
// single-check idiom
peerCertificateChain = result = SSLUtils.toCertificateChain(peerCertificates);
}
return result;
}
@Override
public Principal getPeerPrincipal() throws SSLPeerUnverifiedException {
checkPeerCertificatesPresent();
return peerCertificates[0].getSubjectX500Principal();
}
@Override
public Principal getLocalPrincipal() {
if (localCertificates != null && localCertificates.length > 0) {
return localCertificates[0].getSubjectX500Principal();
} else {
return null;
}
}
@Override
public String getCipherSuite() {
// Always get the Cipher from the SSL directly since it may have changed during a
// renegotiation.
String cipher;
synchronized (ssl) {
cipher = ssl.getCipherSuite();
}
return cipher == null ? SSLNullSession.INVALID_CIPHER : cipher;
}
@Override
public String getProtocol() {
String protocol = this.protocol;
if (protocol == null) {
synchronized (ssl) {
protocol = ssl.getVersion();
}
this.protocol = protocol;
}
return protocol;
}
@Override
public String getPeerHost() {
return peerHost;
}
@Override
public int getPeerPort() {
return peerPort;
}
@Override
public int getPacketBufferSize() {
return NativeConstants.SSL3_RT_MAX_PACKET_SIZE;
}
@Override
public int getApplicationBufferSize() {
return NativeConstants.SSL3_RT_MAX_PLAIN_LENGTH;
}
/**
* Configures the peer information once it has been received by the handshake.
*/
void onPeerCertificatesReceived(
String peerHost, int peerPort, X509Certificate[] peerCertificates) {
configurePeer(peerHost, peerPort, peerCertificates);
}
private void configurePeer(String peerHost, int peerPort, X509Certificate[] peerCertificates) {
this.peerHost = peerHost;
this.peerPort = peerPort;
this.peerCertificates = peerCertificates;
synchronized (ssl) {
this.peerCertificateOcspData = ssl.getPeerCertificateOcspData();
this.peerTlsSctData = ssl.getPeerTlsSctData();
}
}
/**
* Updates the cached peer certificate after the handshake has completed
* (or entered False Start).
*/
void onPeerCertificateAvailable(String peerHost, int peerPort) throws CertificateException {
synchronized (ssl) {
id = null;
this.localCertificates = ssl.getLocalCertificates();
if (this.peerCertificates == null) {
// When resuming a session, the cert_verify_callback (which calls
// onPeerCertificatesReceived) isn't called by BoringSSL during the handshake
// because it presumes the certs were verified in the previous connection on that
// session, leaving us without the peer certificates. If that happens, fetch them
// explicitly.
configurePeer(peerHost, peerPort, ssl.getPeerCertificates());
}
}
}
/**
* Throw SSLPeerUnverifiedException on null or empty peerCertificates array
*/
private void checkPeerCertificatesPresent() throws SSLPeerUnverifiedException {
if (peerCertificates == null || peerCertificates.length == 0) {
throw new SSLPeerUnverifiedException("No peer certificates");
}
}
private void notifyUnbound(Object value, String name) {
if (value instanceof SSLSessionBindingListener) {
((SSLSessionBindingListener) value)
.valueUnbound(new SSLSessionBindingEvent(this, name));
}
}
}
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