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17 package org.apache.commons.fileupload;
18
19 import java.io.ByteArrayInputStream;
20 import java.io.ByteArrayOutputStream;
21 import java.io.FilterInputStream;
22 import java.io.IOException;
23 import java.io.InputStream;
24 import java.io.OutputStreamWriter;
25 import java.util.Iterator;
26 import java.util.List;
27 import javax.servlet.http.HttpServletRequest;
28
29 import org.apache.commons.fileupload.FileUploadBase.IOFileUploadException;
30 import org.apache.commons.fileupload.disk.DiskFileItemFactory;
31 import org.apache.commons.fileupload.servlet.ServletFileUpload;
32 import org.apache.commons.fileupload.servlet.ServletRequestContext;
33
34 import junit.framework.TestCase;
35
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37
38
39
40 public class StreamingTest extends TestCase
41 {
42
43
44
45 public void testFileUpload()
46 throws IOException, FileUploadException
47 {
48 byte[] request = newRequest();
49 List fileItems = parseUpload(request);
50 Iterator fileIter = fileItems.iterator();
51 int add = 16;
52 int num = 0;
53 for (int i = 0; i < 16384; i += add) {
54 if (++add == 32) {
55 add = 16;
56 }
57 FileItem item = (FileItem) fileIter.next();
58 assertEquals("field" + (num++), item.getFieldName());
59 byte[] bytes = item.get();
60 assertEquals(i, bytes.length);
61 for (int j = 0; j < i; j++) {
62 assertEquals((byte) j, bytes[j]);
63 }
64 }
65 assertTrue(!fileIter.hasNext());
66 }
67
68
69
70
71
72
73 public void testFileUploadException()
74 throws IOException, FileUploadException {
75 byte[] request = newRequest();
76 byte[] invalidRequest = new byte[request.length-11];
77 System.arraycopy(request, 0, invalidRequest, 0, request.length-11);
78 try {
79 parseUpload(invalidRequest);
80 fail("Expected EndOfStreamException");
81 } catch (IOFileUploadException e) {
82 assertTrue(e.getCause() instanceof MultipartStream.MalformedStreamException);
83 }
84 }
85
86
87
88
89 public void testIOException()
90 throws IOException {
91 byte[] request = newRequest();
92 InputStream stream = new FilterInputStream(new ByteArrayInputStream(request)){
93 private int num;
94 public int read() throws IOException {
95 if (++num > 123) {
96 throw new IOException("123");
97 }
98 return super.read();
99 }
100 public int read(byte[] pB, int pOff, int pLen)
101 throws IOException {
102 for (int i = 0; i < pLen; i++) {
103 int res = read();
104 if (res == -1) {
105 return i == 0 ? -1 : i;
106 }
107 pB[pOff+i] = (byte) res;
108 }
109 return pLen;
110 }
111 };
112 try {
113 parseUpload(stream, request.length);
114 fail("Expected IOException");
115 } catch (FileUploadException e) {
116 assertTrue(e.getCause() instanceof IOException);
117 assertEquals("123", e.getCause().getMessage());
118 }
119 }
120
121
122
123
124 public void testFILEUPLOAD135()
125 throws IOException, FileUploadException
126 {
127 byte[] request = newShortRequest();
128 final ByteArrayInputStream bais = new ByteArrayInputStream(request);
129 List fileItems = parseUpload(new InputStream() {
130 public int read()
131 throws IOException
132 {
133 return bais.read();
134 }
135 public int read(byte b[], int off, int len) throws IOException
136 {
137 return bais.read(b, off, Math.min(len, 3));
138 }
139
140 }, request.length);
141 Iterator fileIter = fileItems.iterator();
142 assertTrue(fileIter.hasNext());
143 FileItem item = (FileItem) fileIter.next();
144 assertEquals("field", item.getFieldName());
145 byte[] bytes = item.get();
146 assertEquals(3, bytes.length);
147 assertEquals((byte)'1', bytes[0]);
148 assertEquals((byte)'2', bytes[1]);
149 assertEquals((byte)'3', bytes[2]);
150 assertTrue(!fileIter.hasNext());
151 }
152
153 private List parseUpload(byte[] bytes) throws FileUploadException {
154 return parseUpload(new ByteArrayInputStream(bytes), bytes.length);
155 }
156
157 private List parseUpload(InputStream pStream, int pLength)
158 throws FileUploadException {
159 String contentType = "multipart/form-data; boundary=---1234";
160
161 FileUploadBase upload = new ServletFileUpload();
162 upload.setFileItemFactory(new DiskFileItemFactory());
163 HttpServletRequest request = new MockHttpServletRequest(pStream,
164 pLength, contentType);
165
166 List fileItems = upload.parseRequest(new ServletRequestContext(request));
167 return fileItems;
168 }
169
170 private String getHeader(String pField) {
171 return "-----1234\r\n"
172 + "Content-Disposition: form-data; name=\"" + pField + "\"\r\n"
173 + "\r\n";
174
175 }
176
177 private String getFooter() {
178 return "-----1234--\r\n";
179 }
180
181 private byte[] newShortRequest() throws IOException {
182 final ByteArrayOutputStream baos = new ByteArrayOutputStream();
183 final OutputStreamWriter osw = new OutputStreamWriter(baos, "US-ASCII");
184 osw.write(getHeader("field"));
185 osw.write("123");
186 osw.write("\r\n");
187 osw.write(getFooter());
188 osw.close();
189 return baos.toByteArray();
190 }
191
192 private byte[] newRequest() throws IOException {
193 final ByteArrayOutputStream baos = new ByteArrayOutputStream();
194 final OutputStreamWriter osw = new OutputStreamWriter(baos, "US-ASCII");
195 int add = 16;
196 int num = 0;
197 for (int i = 0; i < 16384; i += add) {
198 if (++add == 32) {
199 add = 16;
200 }
201 osw.write(getHeader("field" + (num++)));
202 osw.flush();
203 for (int j = 0; j < i; j++) {
204 baos.write((byte) j);
205 }
206 osw.write("\r\n");
207 }
208 osw.write(getFooter());
209 osw.close();
210 return baos.toByteArray();
211 }
212 }