src/java.base/share/classes/sun/security/ssl/HandshakeInStream.java
branchJDK-8145252-TLS13-branch
changeset 56542 56aaa6cb3693
parent 56541 92cbbfc996f3
child 56543 2352538d2f6e
--- a/src/java.base/share/classes/sun/security/ssl/HandshakeInStream.java	Fri May 11 14:55:56 2018 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,179 +0,0 @@
-/*
- * Copyright (c) 1996, 2015, 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.ByteArrayInputStream;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-
-import javax.net.ssl.SSLException;
-
-/**
- * InputStream for handshake data, used internally only. Contains the
- * handshake message buffer and methods to parse them.
- *
- * Once a new handshake record arrives, it is buffered in this class until
- * processed by the Handshaker. The buffer may also contain incomplete
- * handshake messages in case the message is split across multiple records.
- * Handshaker.processRecord deals with all that. It may also contain
- * handshake messages larger than the default buffer size (e.g. large
- * certificate messages). The buffer is grown dynamically to handle that.
- *
- * Note that this class only handles Handshake messages in TLS format.
- * DTLS Handshake messages should be converted into TLS format before
- * calling into this method.
- *
- * @author David Brownell
- */
-
-// This class is used to handle plain text handshake messages.
-//
-public final class HandshakeInStream extends ByteArrayInputStream {
-
-    /*
-     * Construct the stream; we'll be accumulating hashes of the
-     * input records using two sets of digests.
-     */
-    HandshakeInStream() {
-        super(new byte[0]);     // lazy to alloacte the internal buffer
-    }
-
-    //
-    // overridden ByteArrayInputStream methods
-    //
-
-    @Override
-    public int read(byte[] b) throws IOException {
-        if (super.read(b) != b.length) {
-            throw new SSLException("Unexpected end of handshake data");
-        }
-
-        return b.length;
-    }
-
-    //
-    // handshake input stream management functions
-    //
-
-    /*
-     * Here's an incoming record with handshake data.  Queue the contents;
-     * it might be one or more entire messages, complete a message that's
-     * partly queued, or both.
-     */
-    void incomingRecord(ByteBuffer in) throws IOException {
-        int len;
-
-        // Move any unread data to the front of the buffer.
-        if (pos != 0) {
-            len = count - pos;
-            if (len != 0) {
-                System.arraycopy(buf, pos, buf, 0, len);
-            }
-            pos = 0;
-            count = len;
-        }
-
-        // Grow buffer if needed.
-        len = in.remaining() + count;
-        if (buf.length < len) {
-            byte[] newbuf = new byte[len];
-            if (count != 0) {
-                System.arraycopy(buf, 0, newbuf, 0, count);
-            }
-            buf = newbuf;
-        }
-
-        // Append the incoming record to the buffer
-        in.get(buf, count, in.remaining());
-        count = len;
-    }
-
-    //
-    // Message parsing methods
-    //
-
-    /*
-     * Read 8, 16, 24, and 32 bit SSL integer data types, encoded
-     * in standard big-endian form.
-     */
-    int getInt8() throws IOException {
-        verifyLength(1);
-        return read();
-    }
-
-    int getInt16() throws IOException {
-        verifyLength(2);
-        return (getInt8() << 8) | getInt8();
-    }
-
-    int getInt24() throws IOException {
-        verifyLength(3);
-        return (getInt8() << 16) | (getInt8() << 8) | getInt8();
-    }
-
-    int getInt32() throws IOException {
-        verifyLength(4);
-        return (getInt8() << 24) | (getInt8() << 16)
-             | (getInt8() << 8) | getInt8();
-    }
-
-    /*
-     * Read byte vectors with 8, 16, and 24 bit length encodings.
-     */
-    byte[] getBytes8() throws IOException {
-        int len = getInt8();
-        verifyLength(len);
-        byte[] b = new byte[len];
-
-        read(b);
-        return b;
-    }
-
-    public byte[] getBytes16() throws IOException {
-        int len = getInt16();
-        verifyLength(len);
-        byte[] b = new byte[len];
-
-        read(b);
-        return b;
-    }
-
-    byte[] getBytes24() throws IOException {
-        int len = getInt24();
-        verifyLength(len);
-        byte[] b = new byte[len];
-
-        read(b);
-        return b;
-    }
-
-    // Is a length greater than available bytes in the record?
-    private void verifyLength(int len) throws SSLException {
-        if (len > available()) {
-            throw new SSLException("Unexpected end of handshake data");
-        }
-    }
-}