src/java.base/share/classes/sun/security/ssl/CertificateStatus.java
branchJDK-8145252-TLS13-branch
changeset 56542 56aaa6cb3693
child 56651 0c13b82d3274
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/sun/security/ssl/CertificateStatus.java	Fri May 11 15:53:12 2018 -0700
@@ -0,0 +1,332 @@
+/*
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.security.ssl;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.text.MessageFormat;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Locale;
+import javax.net.ssl.SSLHandshakeException;
+import java.security.cert.X509Certificate;
+import sun.security.provider.certpath.OCSPResponse;
+import sun.security.ssl.SSLHandshake.HandshakeMessage;
+import static sun.security.ssl.CertStatusExtension.*;
+import static sun.security.ssl.CertificateMessage.*;
+
+/**
+ * Pack of the CertificateStatus handshake message.
+ */
+final class CertificateStatus {
+    static final SSLConsumer handshakeConsumer =
+            new CertificateStatusConsumer();
+    static final HandshakeProducer handshakeProducer =
+            new CertificateStatusProducer();
+    static final HandshakeAbsence handshakeAbsence =
+            new CertificateStatusAbsence();
+
+    /**
+     * The CertificateStatus handshake message.
+     */
+    static final class CertificateStatusMessage extends HandshakeMessage {
+
+        final CertStatusRequestType statusType;
+        int encodedResponsesLen = 0;
+        int messageLength = -1;
+        final List<byte[]> encodedResponses = new ArrayList<>();
+
+        CertificateStatusMessage(HandshakeContext handshakeContext) {
+            super(handshakeContext);
+
+            ServerHandshakeContext shc =
+                    (ServerHandshakeContext)handshakeContext;
+
+            // Get the Certificates from the SSLContextImpl amd the Stapling
+            // parameters
+            StatusResponseManager.StaplingParameters stapleParams =
+                    shc.stapleParams;
+            if (stapleParams == null) {
+                throw new IllegalArgumentException(
+                        "Unexpected null stapling parameters");
+            }
+
+            X509Certificate[] certChain =
+                (X509Certificate[])shc.handshakeSession.getLocalCertificates();
+            if (certChain == null) {
+                throw new IllegalArgumentException(
+                        "Unexpected null certificate chain");
+            }
+
+            // Walk the certificate list and add the correct encoded responses
+            // to the encoded responses list
+            statusType = stapleParams.statReqType;
+            if (statusType == CertStatusRequestType.OCSP) {
+                // Just worry about the first cert in the chain
+                byte[] resp = stapleParams.responseMap.get(certChain[0]);
+                if (resp == null) {
+                    // A not-found return status means we should include
+                    // a zero-length response in CertificateStatus.
+                    // This is highly unlikely to happen in practice.
+                    resp = new byte[0];
+                }
+                encodedResponses.add(resp);
+                encodedResponsesLen += resp.length + 3;
+            } else if (statusType == CertStatusRequestType.OCSP_MULTI) {
+                for (X509Certificate cert : certChain) {
+                    byte[] resp = stapleParams.responseMap.get(cert);
+                    if (resp == null) {
+                        resp = new byte[0];
+                    }
+                    encodedResponses.add(resp);
+                    encodedResponsesLen += resp.length + 3;
+                }
+            } else {
+                throw new IllegalArgumentException(
+                        "Unsupported StatusResponseType: " + statusType);
+            }
+
+            messageLength = messageLength();
+        }
+
+        CertificateStatusMessage(HandshakeContext handshakeContext,
+                ByteBuffer m) throws IOException {
+            super(handshakeContext);
+
+            statusType = CertStatusRequestType.valueOf((byte)Record.getInt8(m));
+            if (statusType == CertStatusRequestType.OCSP) {
+                byte[] respDER = Record.getBytes24(m);
+                // Convert the incoming bytes to a OCSPResponse strucutre
+                if (respDER.length > 0) {
+                    encodedResponses.add(respDER);
+                    encodedResponsesLen = 3 + respDER.length;
+                } else {
+                    handshakeContext.conContext.fatal(Alert.HANDSHAKE_FAILURE,
+                            "Zero-length OCSP Response");
+                }
+            } else if (statusType == CertStatusRequestType.OCSP_MULTI) {
+                int respListLen = Record.getInt24(m);
+                encodedResponsesLen = respListLen;
+
+                // Add each OCSP reponse into the array list in the order
+                // we receive them off the wire.  A zero-length array is
+                // allowed for ocsp_multi, and means that a response for
+                // a given certificate is not available.
+                while (respListLen > 0) {
+                    byte[] respDER = Record.getBytes24(m);
+                    encodedResponses.add(respDER);
+                    respListLen -= (respDER.length + 3);
+                }
+
+                if (respListLen != 0) {
+                    handshakeContext.conContext.fatal(Alert.INTERNAL_ERROR,
+                            "Bad OCSP response list length");
+                }
+            } else {
+                handshakeContext.conContext.fatal(Alert.HANDSHAKE_FAILURE,
+                        "Unsupported StatusResponseType: " + statusType);
+            }
+            messageLength = messageLength();
+        }
+
+        @Override
+        public SSLHandshake handshakeType() {
+            return SSLHandshake.CERTIFICATE_STATUS;
+        }
+
+        @Override
+        public int messageLength() {
+            int len = 1;
+
+            if (messageLength == -1) {
+                if (statusType == CertStatusRequestType.OCSP) {
+                    len += encodedResponsesLen;
+                } else if (statusType == CertStatusRequestType.OCSP_MULTI) {
+                    len += 3 + encodedResponsesLen;
+                }
+                messageLength = len;
+            }
+
+            return messageLength;
+        }
+
+        @Override
+        public void send(HandshakeOutStream s) throws IOException {
+            s.putInt8(statusType.id);
+            if (statusType == CertStatusRequestType.OCSP) {
+                s.putBytes24(encodedResponses.get(0));
+            } else if (statusType == CertStatusRequestType.OCSP_MULTI) {
+                s.putInt24(encodedResponsesLen);
+                for (byte[] respBytes : encodedResponses) {
+                    if (respBytes != null) {
+                        s.putBytes24(respBytes);
+                    } else {
+                        s.putBytes24(null);
+                    }
+                }
+            } else {
+                // It is highly unlikely that we will fall into this section
+                // of the code.
+                throw new SSLHandshakeException("Unsupported status_type: " +
+                        statusType.id);
+            }
+        }
+
+        @Override
+        public String toString() {
+            StringBuilder sb = new StringBuilder();
+
+            // Stringify the encoded OCSP response list
+            for (byte[] respDER : encodedResponses) {
+                if (respDER.length > 0) {
+                    try {
+                        OCSPResponse oResp = new OCSPResponse(respDER);
+                        sb.append(oResp.toString()).append("\n");
+                    } catch (IOException ioe) {
+                        sb.append("OCSP Response Exception: ").append(ioe)
+                                .append("\n");
+                    }
+                } else {
+                    sb.append("<Zero-length entry>\n");
+                }
+            }
+
+            MessageFormat messageFormat = new MessageFormat(
+                "\"CertificateStatus\": '{'\n" +
+                "  \"type\"                : \"{0}\",\n" +
+                "  \"responses \"          : [\n" + "{1}\n" + "  ]\n" +
+                "'}'",
+                Locale.ENGLISH);
+            Object[] messageFields = {
+                statusType.name,
+                Utilities.indent(Utilities.indent(sb.toString()))
+            };
+
+            return messageFormat.format(messageFields);
+        }
+    }
+
+    /**
+     * The CertificateStatus handshake message consumer.
+     */
+    private static final class CertificateStatusConsumer
+            implements SSLConsumer {
+        // Prevent instantiation of this class.
+        private CertificateStatusConsumer() {
+            // blank
+        }
+
+        @Override
+        public void consume(ConnectionContext context,
+                ByteBuffer message) throws IOException {
+            ClientHandshakeContext chc = (ClientHandshakeContext)context;
+            CertificateStatusMessage cst =
+                    new CertificateStatusMessage(chc, message);
+
+            // Log the message
+            if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
+                SSLLogger.fine(
+                        "Consuming server CertificateStatus handshake message",
+                        cst);
+            }
+
+            // Pin the received responses to the SSLSessionImpl.  It will
+            // be retrieved by the X509TrustManagerImpl during the certficicate
+            // checking phase.
+            chc.handshakeSession.setStatusResponses(cst.encodedResponses);
+
+            // Now perform the check
+            T12CertificateConsumer.checkServerCerts(chc, chc.deferredCerts);
+        }
+    }
+
+    /**
+     * The CertificateStatus handshake message consumer.
+     */
+    private static final class CertificateStatusProducer
+            implements HandshakeProducer {
+        // Prevent instantiation of this class.
+        private CertificateStatusProducer() {
+            // blank
+        }
+
+        @Override
+        public byte[] produce(ConnectionContext context,
+                HandshakeMessage message) throws IOException {
+            // Only the server-side should be a producer of this message
+            ServerHandshakeContext shc = (ServerHandshakeContext)context;
+
+            // If stapling is not active, immediately return without producing
+            // a message or any further processing.
+            if (!shc.staplingActive) {
+                return null;
+            }
+
+            // Create the CertificateStatus message from info in the
+            CertificateStatusMessage csm = new CertificateStatusMessage(shc);
+            if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
+                SSLLogger.fine(
+                    "Produced server CertificateStatus handshake message", csm);
+            }
+
+            // Output the handshake message.
+            csm.write(shc.handshakeOutput);
+            shc.handshakeOutput.flush();
+
+            // The handshake message has been delivered.
+            return null;
+        }
+    }
+
+    private static final class CertificateStatusAbsence
+            implements HandshakeAbsence {
+        // Prevent instantiation of this class
+        private CertificateStatusAbsence() {
+            // blank
+        }
+
+        @Override
+        public void absent(ConnectionContext context,
+                HandshakeMessage message) throws IOException {
+            ClientHandshakeContext chc = (ClientHandshakeContext)context;
+
+            // Processing should only continue if stapling is active
+            if (chc.staplingActive) {
+                // Because OCSP stapling is active, it means two things
+                // if we're here: 1) The server hello asserted the
+                // status_request[_v2] extension.  2) The CertificateStatus
+                // message was not sent.  This means that cert path checking
+                // was deferred, but must happen immediately.
+                if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
+                    SSLLogger.fine("Server did not send CertificateStatus, " +
+                            "checking cert chain without status info.");
+                }
+                T12CertificateConsumer.checkServerCerts(chc, chc.deferredCerts);
+            }
+        }
+    }
+}
+