com.sun.faces.renderkit.html_basic.FileRenderer Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
// FileRenderer.java
package com.sun.faces.renderkit.html_basic;
import com.sun.faces.renderkit.RenderKitUtils;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.application.FacesMessage;
import javax.faces.application.ProjectStage;
import javax.faces.component.UIComponent;
import javax.faces.component.UIForm;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.convert.ConverterException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.Part;
public class FileRenderer extends TextRenderer {
// ---------------------------------------------------------- Public Methods
@Override
public void decode(FacesContext context, UIComponent component) {
rendererParamsNotNull(context, component);
if (!shouldDecode(component)) {
return;
}
String clientId = decodeBehaviors(context, component);
if (clientId == null) {
clientId = component.getClientId(context);
}
assert(clientId != null);
ExternalContext externalContext = context.getExternalContext();
Map requestMap = externalContext.getRequestParameterMap();
if (requestMap.containsKey(clientId)) {
setSubmittedValue(component, requestMap.get(clientId));
}
HttpServletRequest request = (HttpServletRequest) externalContext.getRequest();
try {
Collection parts = request.getParts();
for (Part cur : parts) {
if (clientId.equals(cur.getName())) {
// The cause of 3404 is here: the component should not be
// transient, rather, the value should not saved as part of
// the state
// component.setTransient(true);
setSubmittedValue(component, cur);
}
}
} catch (IOException ioe) {
throw new FacesException(ioe);
} catch (ServletException se) {
throw new FacesException(se);
}
}
// If we are in Project Stage Development mode, the parent form
// must have an enctype of "multipart/form-data" for this component.
// If not, produce a message.
@Override
public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {
if (context.isProjectStage(ProjectStage.Development)) {
boolean produceMessage = false;
UIForm form = RenderKitUtils.getForm(component, context);
if (null != form) {
String encType = (String)form.getAttributes().get("enctype");
if (null == encType || !encType.equals("multipart/form-data")) {
produceMessage = true;
}
} else {
produceMessage = true;
}
if (produceMessage) {
FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_WARN,
"File upload component requires a form with an enctype of multipart/form-data",
"File upload component requires a form with an enctype of multipart/form-data");
context.addMessage(component.getClientId(context), message);
}
}
super.encodeBegin(context, component);
}
@Override
public Object getConvertedValue(FacesContext context, UIComponent component, Object submittedValue) throws ConverterException {
if (submittedValue instanceof Part) {
Part part = (Part) submittedValue;
if ((part.getHeader("content-disposition") == null || part.getHeader("content-disposition").endsWith("filename=\"\"")) && part.getSize() <= 0) {
return null;
}
}
return submittedValue;
}
}