/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.fileupload;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.fileupload.FileUploadBase.FileUploadIOException;
import org.apache.commons.fileupload.FileUploadBase.IOFileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.servlet.ServletRequestContext;
import junit.framework.TestCase;
/**
* Unit test for items with varying sizes.
*/
public class StreamingTest extends TestCase
{
/**
* Tests a file upload with varying file sizes.
*/
public void testFileUpload()
throws IOException, FileUploadException
{
byte[] request = newRequest();
List fileItems = parseUpload(request);
Iterator fileIter = fileItems.iterator();
int add = 16;
int num = 0;
for (int i = 0; i < 16384; i += add) {
if (++add == 32) {
add = 16;
}
FileItem item = (FileItem) fileIter.next();
assertEquals("field" + (num++), item.getFieldName());
byte[] bytes = item.get();
assertEquals(i, bytes.length);
for (int j = 0; j < i; j++) {
assertEquals((byte) j, bytes[j]);
}
}
assertTrue(!fileIter.hasNext());
}
/**
* Tests, whether an invalid request throws a proper
* exception.
*/
public void testFileUploadException()
throws IOException, FileUploadException {
byte[] request = newRequest();
byte[] invalidRequest = new byte[request.length-11];
System.arraycopy(request, 0, invalidRequest, 0, request.length-11);
try {
parseUpload(invalidRequest);
fail("Expected EndOfStreamException");
} catch (IOFileUploadException e) {
assertTrue(e.getCause() instanceof MultipartStream.MalformedStreamException);
}
}
/**
* Tests, whether an IOException is properly delegated.
*/
public void testIOException()
throws IOException, FileUploadException {
byte[] request = newRequest();
InputStream stream = new FilterInputStream(new ByteArrayInputStream(request)){
private int num;
public int read() throws IOException {
if (++num > 123) {
throw new IOException("123");
}
return super.read();
}
public int read(byte[] pB, int pOff, int pLen)
throws IOException {
for (int i = 0; i < pLen; i++) {
int res = read();
if (res == -1) {
return i == 0 ? -1 : i;
}
pB[pOff+i] = (byte) res;
}
return pLen;
}
};
try {
parseUpload(stream, request.length);
} catch (IOFileUploadException e) {
assertTrue(e.getCause() instanceof IOException);
assertEquals("123", e.getCause().getMessage());
}
}
private List parseUpload(byte[] bytes) throws FileUploadException {
return parseUpload(new ByteArrayInputStream(bytes), bytes.length);
}
private List parseUpload(InputStream pStream, int pLength)
throws FileUploadException {
String contentType = "multipart/form-data; boundary=---1234";
FileUploadBase upload = new ServletFileUpload();
upload.setFileItemFactory(new DiskFileItemFactory());
HttpServletRequest request = new MockHttpServletRequest(pStream,
pLength, contentType);
List fileItems = upload.parseRequest(new ServletRequestContext(request));
return fileItems;
}
private byte[] newRequest() throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int add = 16;
int num = 0;
for (int i = 0; i < 16384; i += add) {
if (++add == 32) {
add = 16;
}
String header = "-----1234\r\n"
+ "Content-Disposition: form-data; name=\"field" + (num++) + "\"\r\n"
+ "\r\n";
baos.write(header.getBytes("US-ASCII"));
for (int j = 0; j < i; j++) {
baos.write((byte) j);
}
baos.write("\r\n".getBytes("US-ASCII"));
}
baos.write("-----1234--\r\n".getBytes("US-ASCII"));
return baos.toByteArray();
}
}