--- a/src/java.base/share/classes/sun/security/ssl/AppInputStream.java Mon Jun 25 21:22:16 2018 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,212 +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.InputStream;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-
-import javax.net.ssl.SSLProtocolException;
-
-/**
- * InputStream for application data as returned by SSLSocket.getInputStream().
- *
- * @author David Brownell
- */
-final class AppInputStream extends InputStream {
- // the buffer size for each read of network data
- private static final int READ_BUFFER_SIZE = 4096;
-
- // static dummy array we use to implement skip()
- private static final byte[] SKIP_ARRAY = new byte[256];
-
- // the related socket of the input stream
- private final SSLSocketImpl socket;
-
- // the temporary buffer used to read network
- private ByteBuffer buffer;
-
- // Is application data available in the stream?
- private boolean appDataIsAvailable;
-
- // One element array used to implement the single byte read() method
- private final byte[] oneByte = new byte[1];
-
- AppInputStream(SSLSocketImpl conn) {
- this.buffer = ByteBuffer.allocate(READ_BUFFER_SIZE);
- this.socket = conn;
- this.appDataIsAvailable = false;
- }
-
- /**
- * Return the minimum number of bytes that can be read without blocking.
- *
- * Currently not synchronized.
- */
- @Override
- public int available() throws IOException {
- if ((!appDataIsAvailable) || socket.checkEOF()) {
- return 0;
- }
-
- return buffer.remaining();
- }
-
- /**
- * Read a single byte, returning -1 on non-fault EOF status.
- */
- @Override
- public synchronized int read() throws IOException {
- int n = read(oneByte, 0, 1);
- if (n <= 0) { // EOF
- return -1;
- }
- return oneByte[0] & 0xFF;
- }
-
- /**
- * Reads up to {@code len} bytes of data from the input stream into an
- * array of bytes. An attempt is made to read as many as {@code len} bytes,
- * but a smaller number may be read. The number of bytes actually read
- * is returned as an integer.
- *
- * If the layer above needs more data, it asks for more, so we
- * are responsible only for blocking to fill at most one buffer,
- * and returning "-1" on non-fault EOF status.
- */
- @Override
- public synchronized int read(byte[] b, int off, int len)
- throws IOException {
- if (b == null) {
- throw new NullPointerException();
- } else if (off < 0 || len < 0 || len > b.length - off) {
- throw new IndexOutOfBoundsException();
- } else if (len == 0) {
- return 0;
- }
-
- if (socket.checkEOF()) {
- return -1;
- }
-
- // Read the available bytes at first.
- int remains = available();
- if (remains > 0) {
- int howmany = Math.min(remains, len);
- buffer.get(b, off, howmany);
-
- return howmany;
- }
-
- appDataIsAvailable = false;
- int volume = 0;
-
- try {
- /*
- * Read data if needed ... notice that the connection guarantees
- * that handshake, alert, and change cipher spec data streams are
- * handled as they arrive, so we never see them here.
- */
- while(volume == 0) {
- // Clear the buffer for a new record reading.
- buffer.clear();
-
- //
- // grow the buffer if needed
- //
-
- // Read the header of a record into the buffer, and return
- // the packet size.
- int packetLen = socket.bytesInCompletePacket();
- if (packetLen < 0) { // EOF
- return -1;
- }
-
- // Is this packet bigger than SSL/TLS normally allows?
- if (packetLen > SSLRecord.maxLargeRecordSize) {
- throw new SSLProtocolException(
- "Illegal packet size: " + packetLen);
- }
-
- if (packetLen > buffer.remaining()) {
- buffer = ByteBuffer.allocate(packetLen);
- }
-
- volume = socket.readRecord(buffer);
- if (volume < 0) { // EOF
- return -1;
- } else if (volume > 0) {
- appDataIsAvailable = true;
- break;
- }
- }
-
- int howmany = Math.min(len, volume);
- buffer.get(b, off, howmany);
- return howmany;
- } catch (Exception e) {
- // shutdown and rethrow (wrapped) exception as appropriate
- socket.handleException(e);
-
- // dummy for compiler
- return -1;
- }
- }
-
-
- /**
- * Skip n bytes. This implementation is somewhat less efficient
- * than possible, but not badly so (redundant copy). We reuse
- * the read() code to keep things simpler. Note that SKIP_ARRAY
- * is static and may garbled by concurrent use, but we are not interested
- * in the data anyway.
- */
- @Override
- public synchronized long skip(long n) throws IOException {
- long skipped = 0;
- while (n > 0) {
- int len = (int)Math.min(n, SKIP_ARRAY.length);
- int r = read(SKIP_ARRAY, 0, len);
- if (r <= 0) {
- break;
- }
- n -= r;
- skipped += r;
- }
- return skipped;
- }
-
- /*
- * Socket close is already synchronized, no need to block here.
- */
- @Override
- public void close() throws IOException {
- socket.close();
- }
-
- // inherit default mark/reset behavior (throw Exceptions) from InputStream
-}