/*
* 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.myfaces.tobago.webapp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.myfaces.tobago.internal.webapp.TobagoMultipartFormdataRequest;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.util.Locale;
/**
* This filter handles multipart request. It must be enabled in the web.xml of your web application.
* Usage:
* <p/>
* <p><blockquote><pre>
* <filter>
* <filter-name>multipartFormdataFilter</filter-name>
* <filter-class>org.apache.myfaces.tobago.webapp.TobagoMultipartFormdataFilter</filter-class>
* <init-param>
* <description>Set the size limit for uploaded files. Default value is 1 MB.
* Format: 10 = 10 bytes
* 10k = 10 KB
* 10m = 10 MB
* 1g = 1 GB
* </description>
* <param-name>uploadMaxFileSize</param-name>
* <param-value>20m</param-value>
* </init-param>
* <init-param>
* <description>Set the upload repository path for uploaded files.
* Default value is java.io.tmpdir.</description>
* <param-name>uploadRepositoryPath</param-name>
* <param-value>/tmp</param-value>
* </init-param>
* </filter>
* <filter-mapping>
* <filter-name>multipartFormdataFilter</filter-name>
* <url-pattern>/faces/*</url-pattern>
* </filter-mapping>
* </pre></blockquote><p>
*/
public class TobagoMultipartFormdataFilter implements Filter {
private static final Logger LOG = LoggerFactory.getLogger(TobagoMultipartFormdataFilter.class);
private String repositoryPath = System.getProperty("java.io.tmpdir");
private long maxSize = TobagoMultipartFormdataRequest.ONE_MB;
public void init(final FilterConfig filterConfig) throws ServletException {
final String repositoryPath = filterConfig.getInitParameter("uploadRepositoryPath");
if (repositoryPath != null) {
final File file = new File(repositoryPath);
if (!file.exists()) {
LOG.error("Given repository Path for " + getClass().getName() + " " + repositoryPath + " doesn't exists");
} else if (!file.isDirectory()) {
LOG.error("Given repository Path for " + getClass().getName() + " " + repositoryPath + " is not a directory");
} else {
this.repositoryPath = repositoryPath;
}
}
maxSize = TobagoMultipartFormdataRequest.getMaxSize(filterConfig.getInitParameter("uploadMaxFileSize"));
if (LOG.isInfoEnabled()) {
LOG.info("Configure uploadRepositryPath for " + getClass().getName() + " to " + this.repositoryPath);
LOG.info("Configure uploadMaxFileSize for " + getClass().getName() + " to " + this.maxSize);
}
}
public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
throws IOException, ServletException {
final ServletRequest wrapper;
if (request instanceof HttpServletRequest) {
if (request instanceof TobagoMultipartFormdataRequest) {
wrapper = request;
} else {
final String contentType = request.getContentType();
if (contentType != null
&& contentType.toLowerCase(Locale.ENGLISH).startsWith("multipart/form-data")) {
if (LOG.isDebugEnabled()) {
LOG.debug("Wrapping " + request.getClass().getName()
+ " with ContentType=\"" + contentType + "\" "
+ "into TobagoMultipartFormdataRequest");
}
wrapper = new TobagoMultipartFormdataRequest(
(HttpServletRequest) request, repositoryPath, maxSize);
} else {
wrapper = request;
}
}
} else {
LOG.error("Not implemented for non HttpServletRequest");
wrapper = request;
}
chain.doFilter(wrapper, response);
}
public void destroy() {
}
}