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/*
* 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.catalina.core;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import javax.servlet.http.Part;
import org.apache.tomcat.util.http.fileupload.FileItem;
import org.apache.tomcat.util.http.fileupload.ParameterParser;
import org.apache.tomcat.util.http.fileupload.disk.DiskFileItem;
/**
* Adaptor to allow {@link FileItem} objects generated by the package renamed
* commons-upload to be used by the Servlet 3.0 upload API that expects
* {@link Part}s.
*/
public class ApplicationPart implements Part {
private final FileItem fileItem;
private final File location;
public ApplicationPart(FileItem fileItem, File location) {
this.fileItem = fileItem;
this.location = location;
}
@Override
public void delete() throws IOException {
fileItem.delete();
}
@Override
public String getContentType() {
return fileItem.getContentType();
}
@Override
public String getHeader(String name) {
if (fileItem instanceof DiskFileItem) {
return ((DiskFileItem) fileItem).getHeaders().getHeader(name);
}
return null;
}
@Override
public Collection<String> getHeaderNames() {
if (fileItem instanceof DiskFileItem) {
HashSet<String> headerNames = new HashSet<String>();
Iterator<String> iter =
((DiskFileItem) fileItem).getHeaders().getHeaderNames();
while (iter.hasNext()) {
headerNames.add(iter.next());
}
return headerNames;
}
return Collections.emptyList();
}
@Override
public Collection<String> getHeaders(String name) {
if (fileItem instanceof DiskFileItem) {
HashSet<String> headers = new HashSet<String>();
Iterator<String> iter =
((DiskFileItem) fileItem).getHeaders().getHeaders(name);
while (iter.hasNext()) {
headers.add(iter.next());
}
return headers;
}
return Collections.emptyList();
}
@Override
public InputStream getInputStream() throws IOException {
return fileItem.getInputStream();
}
@Override
public String getName() {
return fileItem.getFieldName();
}
@Override
public long getSize() {
return fileItem.getSize();
}
@Override
public void write(String fileName) throws IOException {
File file = new File(fileName);
if (!file.isAbsolute()) {
file = new File(location, fileName);
}
try {
fileItem.write(file);
} catch (Exception e) {
throw new IOException(e);
}
}
public String getString(String encoding) throws UnsupportedEncodingException {
return fileItem.getString(encoding);
}
/**
* Calls {@link #getSubmittedFileName()}.
*
* @deprecated Use {@link #getSubmittedFileName()} from Servlet 3.1 instead.
* This method will be removed in Tomcat 8.
*/
@Deprecated
public String getFilename() {
return getSubmittedFileName();
}
/**
* Adapted from FileUploadBase.getFileName(). Method name chosen to be
* consistent with Servlet 3.1.
*/
public String getSubmittedFileName() {
String fileName = null;
String cd = getHeader("Content-Disposition");
if (cd != null) {
String cdl = cd.toLowerCase(Locale.ENGLISH);
if (cdl.startsWith("form-data") || cdl.startsWith("attachment")) {
ParameterParser paramParser = new ParameterParser();
paramParser.setLowerCaseNames(true);
// Parameter parser can handle null input
Map<String,String> params =
paramParser.parse(cd, ';');
if (params.containsKey("filename")) {
fileName = params.get("filename");
if (fileName != null) {
fileName = fileName.trim();
} else {
// Even if there is no value, the parameter is present,
// so we return an empty file name rather than no file
// name.
fileName = "";
}
}
}
}
return fileName;
}
}
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