Jake Slack | 03928ae | 2014-05-13 18:41:56 -0700 | [diff] [blame] | 1 | // |
| 2 | // ======================================================================== |
| 3 | // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| 4 | // ------------------------------------------------------------------------ |
| 5 | // All rights reserved. This program and the accompanying materials |
| 6 | // are made available under the terms of the Eclipse Public License v1.0 |
| 7 | // and Apache License v2.0 which accompanies this distribution. |
| 8 | // |
| 9 | // The Eclipse Public License is available at |
| 10 | // http://www.eclipse.org/legal/epl-v10.html |
| 11 | // |
| 12 | // The Apache License v2.0 is available at |
| 13 | // http://www.opensource.org/licenses/apache2.0.php |
| 14 | // |
| 15 | // You may elect to redistribute this code under either of these licenses. |
| 16 | // ======================================================================== |
| 17 | // |
| 18 | |
| 19 | package org.eclipse.jetty.util; |
| 20 | |
| 21 | import java.io.FilterOutputStream; |
| 22 | import java.io.IOException; |
| 23 | import java.io.OutputStream; |
| 24 | |
| 25 | |
| 26 | /* ================================================================ */ |
| 27 | /** Handle a multipart MIME response. |
| 28 | * |
| 29 | * |
| 30 | * |
| 31 | */ |
| 32 | public class MultiPartOutputStream extends FilterOutputStream |
| 33 | { |
| 34 | /* ------------------------------------------------------------ */ |
| 35 | private static final byte[] __CRLF={'\r','\n'}; |
| 36 | private static final byte[] __DASHDASH={'-','-'}; |
| 37 | |
| 38 | public static String MULTIPART_MIXED="multipart/mixed"; |
| 39 | public static String MULTIPART_X_MIXED_REPLACE="multipart/x-mixed-replace"; |
| 40 | |
| 41 | /* ------------------------------------------------------------ */ |
| 42 | private String boundary; |
| 43 | private byte[] boundaryBytes; |
| 44 | |
| 45 | /* ------------------------------------------------------------ */ |
| 46 | private boolean inPart=false; |
| 47 | |
| 48 | /* ------------------------------------------------------------ */ |
| 49 | public MultiPartOutputStream(OutputStream out) |
| 50 | throws IOException |
| 51 | { |
| 52 | super(out); |
| 53 | |
| 54 | boundary = "jetty"+System.identityHashCode(this)+ |
| 55 | Long.toString(System.currentTimeMillis(),36); |
| 56 | boundaryBytes=boundary.getBytes(StringUtil.__ISO_8859_1); |
| 57 | |
| 58 | inPart=false; |
| 59 | } |
| 60 | |
| 61 | |
| 62 | |
| 63 | /* ------------------------------------------------------------ */ |
| 64 | /** End the current part. |
| 65 | * @exception IOException IOException |
| 66 | */ |
| 67 | @Override |
| 68 | public void close() |
| 69 | throws IOException |
| 70 | { |
| 71 | if (inPart) |
| 72 | out.write(__CRLF); |
| 73 | out.write(__DASHDASH); |
| 74 | out.write(boundaryBytes); |
| 75 | out.write(__DASHDASH); |
| 76 | out.write(__CRLF); |
| 77 | inPart=false; |
| 78 | super.close(); |
| 79 | } |
| 80 | |
| 81 | /* ------------------------------------------------------------ */ |
| 82 | public String getBoundary() |
| 83 | { |
| 84 | return boundary; |
| 85 | } |
| 86 | |
| 87 | public OutputStream getOut() {return out;} |
| 88 | |
| 89 | /* ------------------------------------------------------------ */ |
| 90 | /** Start creation of the next Content. |
| 91 | */ |
| 92 | public void startPart(String contentType) |
| 93 | throws IOException |
| 94 | { |
| 95 | if (inPart) |
| 96 | out.write(__CRLF); |
| 97 | inPart=true; |
| 98 | out.write(__DASHDASH); |
| 99 | out.write(boundaryBytes); |
| 100 | out.write(__CRLF); |
| 101 | if (contentType != null) |
| 102 | out.write(("Content-Type: "+contentType).getBytes(StringUtil.__ISO_8859_1)); |
| 103 | out.write(__CRLF); |
| 104 | out.write(__CRLF); |
| 105 | } |
| 106 | |
| 107 | /* ------------------------------------------------------------ */ |
| 108 | /** Start creation of the next Content. |
| 109 | */ |
| 110 | public void startPart(String contentType, String[] headers) |
| 111 | throws IOException |
| 112 | { |
| 113 | if (inPart) |
| 114 | out.write(__CRLF); |
| 115 | inPart=true; |
| 116 | out.write(__DASHDASH); |
| 117 | out.write(boundaryBytes); |
| 118 | out.write(__CRLF); |
| 119 | if (contentType != null) |
| 120 | out.write(("Content-Type: "+contentType).getBytes(StringUtil.__ISO_8859_1)); |
| 121 | out.write(__CRLF); |
| 122 | for (int i=0;headers!=null && i<headers.length;i++) |
| 123 | { |
| 124 | out.write(headers[i].getBytes(StringUtil.__ISO_8859_1)); |
| 125 | out.write(__CRLF); |
| 126 | } |
| 127 | out.write(__CRLF); |
| 128 | } |
| 129 | |
| 130 | /* ------------------------------------------------------------ */ |
| 131 | @Override |
| 132 | public void write(byte[] b, int off, int len) throws IOException |
| 133 | { |
| 134 | out.write(b,off,len); |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | |
| 139 | |
| 140 | |