The Tor Browser: mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/ChunkedOutputStream.java@fc2d59ddac77 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/ChunkedOutputStream.java@fc2d59ddac77 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/ChunkedOutputStream.java

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /*
  * ====================================================================
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you 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.
  * ====================================================================
  *
  * This software consists of voluntary contributions made by many
  * individuals on behalf of the Apache Software Foundation.  For more
  * information on the Apache Software Foundation, please see
  * <http://www.apache.org/>.
  *
  */
 package ch.boye.httpclientandroidlib.impl.io;
 import java.io.IOException;
 import java.io.OutputStream;
 import ch.boye.httpclientandroidlib.io.SessionOutputBuffer;
 /**
  * Implements chunked transfer coding. The content is sent in small chunks.
  * Entities transferred using this output stream can be of unlimited length.
  * Writes are buffered to an internal buffer (2048 default size).
  * <p>
  * Note that this class NEVER closes the underlying stream, even when close
  * gets called.  Instead, the stream will be marked as closed and no further
  * output will be permitted.
  *
  *
  * @since 4.0
  */
 public class ChunkedOutputStream extends OutputStream {
     // ----------------------------------------------------- Instance Variables
     private final SessionOutputBuffer out;
     private byte[] cache;
     private int cachePosition = 0;
     private boolean wroteLastChunk = false;
     /** True if the stream is closed. */
     private boolean closed = false;
     // ----------------------------------------------------------- Constructors
     /**
      * Wraps a session output buffer and chunk-encodes the output.
      *
      * @param out The session output buffer
      * @param bufferSize The minimum chunk size (excluding last chunk)
      * @throws IOException in case of an I/O error
      */
     public ChunkedOutputStream(final SessionOutputBuffer out, int bufferSize)
             throws IOException {
         super();
         this.cache = new byte[bufferSize];
         this.out = out;
     }
     /**
      * Wraps a session output buffer and chunks the output. The default buffer
      * size of 2048 was chosen because the chunk overhead is less than 0.5%
      *
      * @param out       the output buffer to wrap
      * @throws IOException in case of an I/O error
      */
     public ChunkedOutputStream(final SessionOutputBuffer out)
             throws IOException {
         this(out, 2048);
     }
     // ----------------------------------------------------------- Internal methods
     /**
      * Writes the cache out onto the underlying stream
      */
     protected void flushCache() throws IOException {
         if (this.cachePosition > 0) {
             this.out.writeLine(Integer.toHexString(this.cachePosition));
             this.out.write(this.cache, 0, this.cachePosition);
             this.out.writeLine("");
             this.cachePosition = 0;
         }
     }
     /**
      * Writes the cache and bufferToAppend to the underlying stream
      * as one large chunk
      */
     protected void flushCacheWithAppend(byte bufferToAppend[], int off, int len) throws IOException {
         this.out.writeLine(Integer.toHexString(this.cachePosition + len));
         this.out.write(this.cache, 0, this.cachePosition);
         this.out.write(bufferToAppend, off, len);
         this.out.writeLine("");
         this.cachePosition = 0;
     }
     protected void writeClosingChunk() throws IOException {
         // Write the final chunk.
         this.out.writeLine("0");
         this.out.writeLine("");
     }
     // ----------------------------------------------------------- Public Methods
     /**
      * Must be called to ensure the internal cache is flushed and the closing
      * chunk is written.
      * @throws IOException in case of an I/O error
      */
     public void finish() throws IOException {
         if (!this.wroteLastChunk) {
             flushCache();
             writeClosingChunk();
             this.wroteLastChunk = true;
         }
     }
     // -------------------------------------------- OutputStream Methods
     public void write(int b) throws IOException {
         if (this.closed) {
             throw new IOException("Attempted write to closed stream.");
         }
         this.cache[this.cachePosition] = (byte) b;
         this.cachePosition++;
         if (this.cachePosition == this.cache.length) flushCache();
     }
     /**
      * Writes the array. If the array does not fit within the buffer, it is
      * not split, but rather written out as one large chunk.
      */
     public void write(byte b[]) throws IOException {
         write(b, 0, b.length);
     }
     /**
      * Writes the array. If the array does not fit within the buffer, it is
      * not split, but rather written out as one large chunk.
      */
     public void write(byte src[], int off, int len) throws IOException {
         if (this.closed) {
             throw new IOException("Attempted write to closed stream.");
         }
         if (len >= this.cache.length - this.cachePosition) {
             flushCacheWithAppend(src, off, len);
         } else {
             System.arraycopy(src, off, cache, this.cachePosition, len);
             this.cachePosition += len;
         }
     }
     /**
      * Flushes the content buffer and the underlying stream.
      */
     public void flush() throws IOException {
         flushCache();
         this.out.flush();
     }
     /**
      * Finishes writing to the underlying stream, but does NOT close the underlying stream.
      */
     public void close() throws IOException {
         if (!this.closed) {
             this.closed = true;
             finish();
             this.out.flush();
         }
     }
 }

The Tor Browser / annotate

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/ChunkedOutputStream.java@fc2d59ddac77 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/ChunkedOutputStream.java