001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.commons.fileupload;
018
019 import java.io.ByteArrayInputStream;
020 import java.io.ByteArrayOutputStream;
021 import java.io.FilterInputStream;
022 import java.io.IOException;
023 import java.io.InputStream;
024 import java.io.OutputStreamWriter;
025 import java.util.Iterator;
026 import java.util.List;
027 import javax.servlet.http.HttpServletRequest;
028
029 import org.apache.commons.fileupload.FileUploadBase.IOFileUploadException;
030 import org.apache.commons.fileupload.disk.DiskFileItemFactory;
031 import org.apache.commons.fileupload.servlet.ServletFileUpload;
032 import org.apache.commons.fileupload.servlet.ServletRequestContext;
033
034 import junit.framework.TestCase;
035
036
037 /**
038 * Unit test for items with varying sizes.
039 */
040 public class StreamingTest extends TestCase
041 {
042 /**
043 * Tests a file upload with varying file sizes.
044 */
045 public void testFileUpload()
046 throws IOException, FileUploadException
047 {
048 byte[] request = newRequest();
049 List fileItems = parseUpload(request);
050 Iterator fileIter = fileItems.iterator();
051 int add = 16;
052 int num = 0;
053 for (int i = 0; i < 16384; i += add) {
054 if (++add == 32) {
055 add = 16;
056 }
057 FileItem item = (FileItem) fileIter.next();
058 assertEquals("field" + (num++), item.getFieldName());
059 byte[] bytes = item.get();
060 assertEquals(i, bytes.length);
061 for (int j = 0; j < i; j++) {
062 assertEquals((byte) j, bytes[j]);
063 }
064 }
065 assertTrue(!fileIter.hasNext());
066 }
067
068
069 /**
070 * Tests, whether an invalid request throws a proper
071 * exception.
072 */
073 public void testFileUploadException()
074 throws IOException, FileUploadException {
075 byte[] request = newRequest();
076 byte[] invalidRequest = new byte[request.length-11];
077 System.arraycopy(request, 0, invalidRequest, 0, request.length-11);
078 try {
079 parseUpload(invalidRequest);
080 fail("Expected EndOfStreamException");
081 } catch (IOFileUploadException e) {
082 assertTrue(e.getCause() instanceof MultipartStream.MalformedStreamException);
083 }
084 }
085
086 /**
087 * Tests, whether an IOException is properly delegated.
088 */
089 public void testIOException()
090 throws IOException {
091 byte[] request = newRequest();
092 InputStream stream = new FilterInputStream(new ByteArrayInputStream(request)){
093 private int num;
094 public int read() throws IOException {
095 if (++num > 123) {
096 throw new IOException("123");
097 }
098 return super.read();
099 }
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 * Test for FILEUPLOAD-135
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 FileItemIterator parseUpload(int pLength, InputStream pStream)
158 throws FileUploadException, IOException {
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 return upload.getItemIterator(new ServletRequestContext(request));
167 }
168
169 private List parseUpload(InputStream pStream, int pLength)
170 throws FileUploadException {
171 String contentType = "multipart/form-data; boundary=---1234";
172
173 FileUploadBase upload = new ServletFileUpload();
174 upload.setFileItemFactory(new DiskFileItemFactory());
175 HttpServletRequest request = new MockHttpServletRequest(pStream,
176 pLength, contentType);
177
178 List fileItems = upload.parseRequest(new ServletRequestContext(request));
179 return fileItems;
180 }
181
182 private String getHeader(String pField) {
183 return "-----1234\r\n"
184 + "Content-Disposition: form-data; name=\"" + pField + "\"\r\n"
185 + "\r\n";
186
187 }
188
189 private String getFooter() {
190 return "-----1234--\r\n";
191 }
192
193 private byte[] newShortRequest() throws IOException {
194 final ByteArrayOutputStream baos = new ByteArrayOutputStream();
195 final OutputStreamWriter osw = new OutputStreamWriter(baos, "US-ASCII");
196 osw.write(getHeader("field"));
197 osw.write("123");
198 osw.write("\r\n");
199 osw.write(getFooter());
200 osw.close();
201 return baos.toByteArray();
202 }
203
204 private byte[] newRequest() throws IOException {
205 final ByteArrayOutputStream baos = new ByteArrayOutputStream();
206 final OutputStreamWriter osw = new OutputStreamWriter(baos, "US-ASCII");
207 int add = 16;
208 int num = 0;
209 for (int i = 0; i < 16384; i += add) {
210 if (++add == 32) {
211 add = 16;
212 }
213 osw.write(getHeader("field" + (num++)));
214 osw.flush();
215 for (int j = 0; j < i; j++) {
216 baos.write((byte) j);
217 }
218 osw.write("\r\n");
219 }
220 osw.write(getFooter());
221 osw.close();
222 return baos.toByteArray();
223 }
224
225 /**
226 * Tests, whether an {@link InvalidFileNameException} is thrown.
227 */
228 public void testInvalidFileNameException() throws Exception {
229 final String fileName = "foo.exe\u0000.png";
230 final String request =
231 "-----1234\r\n" +
232 "Content-Disposition: form-data; name=\"file\"; filename=\"" + fileName + "\"\r\n" +
233 "Content-Type: text/whatever\r\n" +
234 "\r\n" +
235 "This is the content of the file\n" +
236 "\r\n" +
237 "-----1234\r\n" +
238 "Content-Disposition: form-data; name=\"field\"\r\n" +
239 "\r\n" +
240 "fieldValue\r\n" +
241 "-----1234\r\n" +
242 "Content-Disposition: form-data; name=\"multi\"\r\n" +
243 "\r\n" +
244 "value1\r\n" +
245 "-----1234\r\n" +
246 "Content-Disposition: form-data; name=\"multi\"\r\n" +
247 "\r\n" +
248 "value2\r\n" +
249 "-----1234--\r\n";
250 final byte[] reqBytes = request.getBytes("US-ASCII");
251
252 FileItemIterator fileItemIter = parseUpload(reqBytes.length, new ByteArrayInputStream(reqBytes));
253 final FileItemStream fileItemStream = fileItemIter.next();
254 try {
255 fileItemStream.getName();
256 fail("Expected exception");
257 } catch (InvalidFileNameException e) {
258 assertEquals(fileName, e.getName());
259 assertTrue(e.getMessage().indexOf(fileName) == -1);
260 assertTrue(e.getMessage().indexOf("foo.exe\\0.png") != -1);
261 }
262
263 List fileItems = parseUpload(reqBytes);
264 final FileItem fileItem = (FileItem) fileItems.get(0);
265 try {
266 fileItem.getName();
267 fail("Expected exception");
268 } catch (InvalidFileNameException e) {
269 assertEquals(fileName, e.getName());
270 assertTrue(e.getMessage().indexOf(fileName) == -1);
271 assertTrue(e.getMessage().indexOf("foo.exe\\0.png") != -1);
272 }
273 }
274 }