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| 1 /* | 1 /* |
| 2 * This file is part of Adblock Plus <http://adblockplus.org/>, | 2 * This file is part of Adblock Plus <http://adblockplus.org/>, |
| 3 * Copyright (C) 2006-2014 Eyeo GmbH | 3 * Copyright (C) 2006-2014 Eyeo GmbH |
| 4 * | 4 * |
| 5 * Adblock Plus is free software: you can redistribute it and/or modify | 5 * Adblock Plus is free software: you can redistribute it and/or modify |
| 6 * it under the terms of the GNU General Public License version 3 as | 6 * it under the terms of the GNU General Public License version 3 as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 8 * | 8 * |
| 9 * Adblock Plus is distributed in the hope that it will be useful, | 9 * Adblock Plus is distributed in the hope that it will be useful, |
| 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| (...skipping 10 matching lines...) Expand all Loading... |
| 21 import java.io.IOException; | 21 import java.io.IOException; |
| 22 import java.io.OutputStream; | 22 import java.io.OutputStream; |
| 23 | 23 |
| 24 /** | 24 /** |
| 25 * ChunkedOutputStream implements chunked HTTP transfer encoding wrapper for | 25 * ChunkedOutputStream implements chunked HTTP transfer encoding wrapper for |
| 26 * OutputStream. | 26 * OutputStream. |
| 27 */ | 27 */ |
| 28 public class ChunkedOutputStream extends FilterOutputStream | 28 public class ChunkedOutputStream extends FilterOutputStream |
| 29 { | 29 { |
| 30 private static final int MAX_CHUNK_SIZE = 2048; | 30 private static final int MAX_CHUNK_SIZE = 2048; |
| 31 private static final byte[] CRLF = { '\r', '\n' }; | |
| 32 private static final byte[] FINAL_CHUNK = new byte[] { '0', '\r', '\n', '\r',
'\n' }; | |
| 33 | 31 |
| 32 private static final byte[] CRLF = {'\r', '\n'}; |
| 33 private static final byte[] FINAL_CHUNK = new byte[] {'0', '\r', '\n', '\r', '
\n'}; |
| 34 private boolean wroteFinalChunk = false; | 34 private boolean wroteFinalChunk = false; |
| 35 | 35 |
| 36 public ChunkedOutputStream(final OutputStream out) | 36 public ChunkedOutputStream(final OutputStream out) |
| 37 { | 37 { |
| 38 super(out); | 38 super(out); |
| 39 } | 39 } |
| 40 | 40 |
| 41 @Override | 41 @Override |
| 42 public void close() throws IOException | 42 public void close() throws IOException |
| 43 { | 43 { |
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| 74 throw new UnsupportedOperationException("Not implemented"); | 74 throw new UnsupportedOperationException("Not implemented"); |
| 75 } | 75 } |
| 76 | 76 |
| 77 public void writeFinalChunk() throws IOException | 77 public void writeFinalChunk() throws IOException |
| 78 { | 78 { |
| 79 out.write(FINAL_CHUNK); | 79 out.write(FINAL_CHUNK); |
| 80 out.flush(); | 80 out.flush(); |
| 81 wroteFinalChunk = true; | 81 wroteFinalChunk = true; |
| 82 } | 82 } |
| 83 | 83 |
| 84 private void writeChunk(final byte buffer[], final int offset, final int lengt
h) | 84 private void writeChunk(final byte buffer[], final int offset, final int lengt
h) throws IOException |
| 85 throws IOException | |
| 86 { | 85 { |
| 87 // Zero sized buffers are ok on slow connections but not in our case - zero | 86 // Zero sized buffers are ok on slow connections but not in our case - zero |
| 88 // chunk is used to indicate the end of transfer. | 87 // chunk is used to indicate the end of transfer. |
| 89 if (length > 0) | 88 if (length > 0) |
| 90 { | 89 { |
| 91 // Write the chunk length as a hex number | 90 // Write the chunk length as a hex number |
| 92 writeHex(length); | 91 writeHex(length); |
| 93 // Write the data | 92 // Write the data |
| 94 out.write(buffer, offset, length); | 93 out.write(buffer, offset, length); |
| 95 // Write a CRLF | 94 // Write a CRLF |
| 96 out.write(CRLF); | 95 out.write(CRLF); |
| 97 // Flush the underlying stream | 96 // Flush the underlying stream |
| 98 out.flush(); | 97 out.flush(); |
| 99 } | 98 } |
| 100 } | 99 } |
| 101 | 100 |
| 102 private void writeHex(final int i) throws IOException | 101 private void writeHex(final int i) throws IOException |
| 103 { | 102 { |
| 104 out.write(Integer.toHexString(i).getBytes()); | 103 out.write(Integer.toHexString(i).getBytes()); |
| 105 out.write(CRLF); | 104 out.write(CRLF); |
| 106 } | 105 } |
| 107 } | 106 } |
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