Commons FileUpload example source code file (ServletFileUploadTest.java)

This example Commons FileUpload source code file (ServletFileUploadTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons FileUpload tags/keywords

aab03x\r\n, content-disposition, content-disposition, content-type, content-type, diskfileupload, file, fileitem, fileitem, fileuploadexception, fileuploadexception, http, io, ioexception, list, request, response, servlet, this, util

The Commons FileUpload ServletFileUploadTest.java source code

/*
 * 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.IOException;
import java.io.UnsupportedEncodingException;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

/**
 * Unit tests {@link org.apache.commons.fileupload.DiskFileUpload}.
 *
 * @author <a href="mailto:jmcnally@apache.org">John McNally
 * @author Sean C. Sullivan
 *
 */
public class ServletFileUploadTest extends FileUploadTestCase
{
	public void testWithInvalidRequest()
    {
    	FileUploadBase fu = null;

    	fu = new DiskFileUpload();

    	HttpServletRequest req = HttpServletRequestFactory.createInvalidHttpServletRequest();


    	try
    	{
    		fu.parseRequest(req);
    		fail("testWithInvalidRequest: expected exception was not thrown");
    	}
    	catch (FileUploadException expected)
    	{
    		// this exception is expected
    	}

    }


	public void testWithNullContentType()
    {
    	FileUploadBase fu = new DiskFileUpload();

    	HttpServletRequest req = HttpServletRequestFactory.createHttpServletRequestWithNullContentType();

    	try
    	{
    		fu.parseRequest(req);
    		fail("testWithNullContentType: expected exception was not thrown");
    	}
    	catch (DiskFileUpload.InvalidContentTypeException expected)
    	{
    		// this exception is expected
    	}
        catch (FileUploadException unexpected)
        {
    		fail("testWithNullContentType: unexpected exception was thrown");
        }

    }


    public void testFileUpload()
            throws IOException, FileUploadException
    {
        List fileItems = parseUpload("-----1234\r\n" +
                        "Content-Disposition: form-data; name=\"file\"; filename=\"foo.tab\"\r\n" +
                        "Content-Type: text/whatever\r\n" +
                        "\r\n" +
                        "This is the content of the file\n" +
                        "\r\n" +
                        "-----1234\r\n" +
                        "Content-Disposition: form-data; name=\"field\"\r\n" +
                        "\r\n" +
                        "fieldValue\r\n" +
                        "-----1234\r\n" +
                        "Content-Disposition: form-data; name=\"multi\"\r\n" +
                        "\r\n" +
                        "value1\r\n" +
                        "-----1234\r\n" +
                        "Content-Disposition: form-data; name=\"multi\"\r\n" +
                        "\r\n" +
                        "value2\r\n" +
                        "-----1234--\r\n");
        assertEquals(4, fileItems.size());

        FileItem file = (FileItem) fileItems.get(0);
        assertEquals("file", file.getFieldName());
        assertFalse(file.isFormField());
        assertEquals("This is the content of the file\n", file.getString());
        assertEquals("text/whatever", file.getContentType());
        assertEquals("foo.tab", file.getName());

        FileItem field = (FileItem) fileItems.get(1);
        assertEquals("field", field.getFieldName());
        assertTrue(field.isFormField());
        assertEquals("fieldValue", field.getString());

        FileItem multi0 = (FileItem) fileItems.get(2);
        assertEquals("multi", multi0.getFieldName());
        assertTrue(multi0.isFormField());
        assertEquals("value1", multi0.getString());

        FileItem multi1 = (FileItem) fileItems.get(3);
        assertEquals("multi", multi1.getFieldName());
        assertTrue(multi1.isFormField());
        assertEquals("value2", multi1.getString());
    }

    public void testFilenameCaseSensitivity() 
            throws IOException, FileUploadException
    {
        List fileItems = parseUpload("-----1234\r\n" +
                        "Content-Disposition: form-data; name=\"FiLe\"; filename=\"FOO.tab\"\r\n" +
                        "Content-Type: text/whatever\r\n" +
                        "\r\n" +
                        "This is the content of the file\n" +
                        "\r\n" +
                        "-----1234--\r\n");
        assertEquals(1, fileItems.size());

        FileItem file = (FileItem) fileItems.get(0);
        assertEquals("FiLe", file.getFieldName());
        assertEquals("FOO.tab", file.getName());
    }

    /**
     * This is what the browser does if you submit the form without choosing a file.
     */
    public void testEmptyFile()
            throws UnsupportedEncodingException, FileUploadException
    {
        List fileItems = parseUpload ("-----1234\r\n" +
                "Content-Disposition: form-data; name=\"file\"; filename=\"\"\r\n" +
                "\r\n" +
                "\r\n" +
                "-----1234--\r\n");
        assertEquals(1, fileItems.size());

        FileItem file = (FileItem) fileItems.get(0);
        assertFalse(file.isFormField());
        assertEquals("", file.getString());
        assertEquals("", file.getName());
    }

    /**
     * Internet Explorer 5 for the Mac has a bug where the carriage
     * return is missing on any boundary line immediately preceding
     * an input with type=image. (type=submit does not have the bug.)
     */
    public void testIE5MacBug()
            throws UnsupportedEncodingException, FileUploadException
    {
        List fileItems = parseUpload("-----1234\r\n" +
                "Content-Disposition: form-data; name=\"field1\"\r\n" +
                "\r\n" +
                "fieldValue\r\n" +
                "-----1234\n" + // NOTE \r missing
                "Content-Disposition: form-data; name=\"submitName.x\"\r\n" +
                "\r\n" +
                "42\r\n" +
                "-----1234\n" + // NOTE \r missing
                "Content-Disposition: form-data; name=\"submitName.y\"\r\n" +
                "\r\n" +
                "21\r\n" +
                "-----1234\r\n" +
                "Content-Disposition: form-data; name=\"field2\"\r\n" +
                "\r\n" +
                "fieldValue2\r\n" +
                "-----1234--\r\n");

        assertEquals(4, fileItems.size());

        FileItem field1 = (FileItem) fileItems.get(0);
        assertEquals("field1", field1.getFieldName());
        assertTrue(field1.isFormField());
        assertEquals("fieldValue", field1.getString());

        FileItem submitX = (FileItem) fileItems.get(1);
        assertEquals("submitName.x", submitX.getFieldName());
        assertTrue(submitX.isFormField());
        assertEquals("42", submitX.getString());

        FileItem submitY = (FileItem) fileItems.get(2);
        assertEquals("submitName.y", submitY.getFieldName());
        assertTrue(submitY.isFormField());
        assertEquals("21", submitY.getString());

        FileItem field2 = (FileItem) fileItems.get(3);
        assertEquals("field2", field2.getFieldName());
        assertTrue(field2.isFormField());
        assertEquals("fieldValue2", field2.getString());
    }

    /**
     * Test for <a href="http://issues.apache.org/jira/browse/FILEUPLOAD-62">FILEUPLOAD
     */
    public void testFILEUPLOAD62() throws Exception {
    	final String contentType = "multipart/form-data; boundary=AaB03x";
    	final String request =
    		"--AaB03x\r\n" +
    		"content-disposition: form-data; name=\"field1\"\r\n" +
    		"\r\n" +
    		"Joe Blow\r\n" +
    		"--AaB03x\r\n" +
    		"content-disposition: form-data; name=\"pics\"\r\n" +
    		"Content-type: multipart/mixed; boundary=BbC04y\r\n" +
    		"\r\n" +
    		"--BbC04y\r\n" +
    		"Content-disposition: attachment; filename=\"file1.txt\"\r\n" +
    		"Content-Type: text/plain\r\n" +
    		"\r\n" +
    		"... contents of file1.txt ...\r\n" +
    		"--BbC04y\r\n" +
    		"Content-disposition: attachment; filename=\"file2.gif\"\r\n" +
    		"Content-type: image/gif\r\n" +
    		"Content-Transfer-Encoding: binary\r\n" +
    		"\r\n" +
    		"...contents of file2.gif...\r\n" +
    		"--BbC04y--\r\n" +
    		"--AaB03x--";
    	List fileItems = parseUpload(request.getBytes("US-ASCII"), contentType);
        assertEquals(3, fileItems.size());
        FileItem item0 = (FileItem) fileItems.get(0);
        assertEquals("field1", item0.getFieldName());
        assertNull(item0.getName());
        assertEquals("Joe Blow", new String(item0.get()));
        FileItem item1 = (FileItem) fileItems.get(1);
        assertEquals("pics", item1.getFieldName());
        assertEquals("file1.txt", item1.getName());
        assertEquals("... contents of file1.txt ...", new String(item1.get()));
        FileItem item2 = (FileItem) fileItems.get(2);
        assertEquals("pics", item2.getFieldName());
        assertEquals("file2.gif", item2.getName());
        assertEquals("...contents of file2.gif...", new String(item2.get()));
    }

    public void testFoldedHeaders()
    		throws IOException, FileUploadException {
    	List fileItems = parseUpload("-----1234\r\n" +
    			"Content-Disposition: form-data; name=\"file\"; filename=\"foo.tab\"\r\n" +
    			"Content-Type: text/whatever\r\n" +
    			"\r\n" +
    			"This is the content of the file\n" +
    			"\r\n" +
    			"-----1234\r\n" +
    			"Content-Disposition: form-data; \r\n" +
    			"\tname=\"field\"\r\n" +
    			"\r\n" +
    			"fieldValue\r\n" +
    			"-----1234\r\n" +
    			"Content-Disposition: form-data;\r\n" +
    			"     name=\"multi\"\r\n" +
    			"\r\n" +
    			"value1\r\n" +
    			"-----1234\r\n" +
    			"Content-Disposition: form-data; name=\"multi\"\r\n" +
    			"\r\n" +
    			"value2\r\n" +
    			"-----1234--\r\n");
    	assertEquals(4, fileItems.size());

    	FileItem file = (FileItem) fileItems.get(0);
    	assertEquals("file", file.getFieldName());
    	assertFalse(file.isFormField());
    	assertEquals("This is the content of the file\n", file.getString());
    	assertEquals("text/whatever", file.getContentType());
    	assertEquals("foo.tab", file.getName());

    	FileItem field = (FileItem) fileItems.get(1);
    	assertEquals("field", field.getFieldName());
    	assertTrue(field.isFormField());
    	assertEquals("fieldValue", field.getString());

    	FileItem multi0 = (FileItem) fileItems.get(2);
    	assertEquals("multi", multi0.getFieldName());
    	assertTrue(multi0.isFormField());
    	assertEquals("value1", multi0.getString());

    	FileItem multi1 = (FileItem) fileItems.get(3);
    	assertEquals("multi", multi1.getFieldName());
    	assertTrue(multi1.isFormField());
    	assertEquals("value2", multi1.getString());
    }
}