--- a/jdk/src/java.rmi/share/classes/sun/rmi/transport/proxy/HttpInputStream.java Sat May 14 08:03:03 2016 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,205 +0,0 @@
-/*
- * Copyright (c) 1996, 2014, 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.rmi.transport.proxy;
-
-import java.io.*;
-
-import sun.rmi.runtime.Log;
-
-/**
- * The HttpInputStream class assists the HttpSendSocket and HttpReceiveSocket
- * classes by filtering out the header for the message as well as any
- * data after its proper content length.
- */
-class HttpInputStream extends FilterInputStream {
-
- /** bytes remaining to be read from proper content of message */
- protected int bytesLeft;
-
- /** bytes remaining to be read at time of last mark */
- protected int bytesLeftAtMark;
-
- /**
- * Create new filter on a given input stream.
- * @param in the InputStream to filter from
- */
- @SuppressWarnings("deprecation")
- public HttpInputStream(InputStream in) throws IOException
- {
- super(in);
-
- if (in.markSupported())
- in.mark(0); // prevent resetting back to old marks
-
- // pull out header, looking for content length
-
- DataInputStream dis = new DataInputStream(in);
- String key = "Content-length:".toLowerCase();
- boolean contentLengthFound = false;
- String line;
- do {
- line = dis.readLine();
-
- if (RMIMasterSocketFactory.proxyLog.isLoggable(Log.VERBOSE)) {
- RMIMasterSocketFactory.proxyLog.log(Log.VERBOSE,
- "received header line: \"" + line + "\"");
- }
-
- if (line == null)
- throw new EOFException();
-
- if (line.toLowerCase().startsWith(key)) {
- if (contentLengthFound) {
- throw new IOException(
- "Multiple Content-length entries found.");
- } else {
- bytesLeft =
- Integer.parseInt(line.substring(key.length()).trim());
- contentLengthFound = true;
- }
- }
-
- // The idea here is to go past the first blank line.
- // Some DataInputStream.readLine() documentation specifies that
- // it does include the line-terminating character(s) in the
- // returned string, but it actually doesn't, so we'll cover
- // all cases here...
- } while ((line.length() != 0) &&
- (line.charAt(0) != '\r') && (line.charAt(0) != '\n'));
-
- if (!contentLengthFound || bytesLeft < 0) {
- // This really shouldn't happen, but if it does, shoud we fail??
- // For now, just give up and let a whole lot of bytes through...
- bytesLeft = Integer.MAX_VALUE;
- }
- bytesLeftAtMark = bytesLeft;
-
- if (RMIMasterSocketFactory.proxyLog.isLoggable(Log.VERBOSE)) {
- RMIMasterSocketFactory.proxyLog.log(Log.VERBOSE,
- "content length: " + bytesLeft);
- }
- }
-
- /**
- * Returns the number of bytes that can be read with blocking.
- * Make sure that this does not exceed the number of bytes remaining
- * in the proper content of the message.
- */
- public int available() throws IOException
- {
- int bytesAvailable = in.available();
- if (bytesAvailable > bytesLeft)
- bytesAvailable = bytesLeft;
-
- return bytesAvailable;
- }
-
- /**
- * Read a byte of data from the stream. Make sure that one is available
- * from the proper content of the message, else -1 is returned to
- * indicate to the user that the end of the stream has been reached.
- */
- public int read() throws IOException
- {
- if (bytesLeft > 0) {
- int data = in.read();
- if (data != -1)
- -- bytesLeft;
-
- if (RMIMasterSocketFactory.proxyLog.isLoggable(Log.VERBOSE)) {
- RMIMasterSocketFactory.proxyLog.log(Log.VERBOSE,
- "received byte: '" +
- ((data & 0x7F) < ' ' ? " " : String.valueOf((char) data)) +
- "' " + data);
- }
-
- return data;
- }
- else {
- RMIMasterSocketFactory.proxyLog.log(Log.VERBOSE,
- "read past content length");
-
- return -1;
- }
- }
-
- public int read(byte b[], int off, int len) throws IOException
- {
- if (bytesLeft == 0 && len > 0) {
- RMIMasterSocketFactory.proxyLog.log(Log.VERBOSE,
- "read past content length");
-
- return -1;
- }
- if (len > bytesLeft)
- len = bytesLeft;
- int bytesRead = in.read(b, off, len);
- bytesLeft -= bytesRead;
-
- if (RMIMasterSocketFactory.proxyLog.isLoggable(Log.VERBOSE)) {
- RMIMasterSocketFactory.proxyLog.log(Log.VERBOSE,
- "read " + bytesRead + " bytes, " + bytesLeft + " remaining");
- }
-
- return bytesRead;
- }
-
- /**
- * Mark the current position in the stream (for future calls to reset).
- * Remember where we are within the proper content of the message, so
- * that a reset method call can recreate our state properly.
- * @param readlimit how many bytes can be read before mark becomes invalid
- */
- public void mark(int readlimit)
- {
- in.mark(readlimit);
- if (in.markSupported())
- bytesLeftAtMark = bytesLeft;
- }
-
- /**
- * Repositions the stream to the last marked position. Make sure to
- * adjust our position within the proper content accordingly.
- */
- public void reset() throws IOException
- {
- in.reset();
- bytesLeft = bytesLeftAtMark;
- }
-
- /**
- * Skips bytes of the stream. Make sure to adjust our
- * position within the proper content accordingly.
- * @param n number of bytes to be skipped
- */
- public long skip(long n) throws IOException
- {
- if (n > bytesLeft)
- n = bytesLeft;
- long bytesSkipped = in.skip(n);
- bytesLeft -= bytesSkipped;
- return bytesSkipped;
- }
-}