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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<String, String> requestMap = externalContext.getRequestParameterMap(); if (requestMap.containsKey(clientId)) { setSubmittedValue(component, requestMap.get(clientId)); } HttpServletRequest request = (HttpServletRequest) externalContext.getRequest(); try { Collection<Part> 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 | ServletException ioe) { throw new FacesException(ioe); } } // 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; } }