1 //
2 // ========================================================================
3 // Copyright (c) 1995-2013 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