| /* |
| * 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.validator; |
| |
| import org.apache.myfaces.tobago.internal.component.AbstractUIFile; |
| import org.apache.myfaces.tobago.internal.util.ContentType; |
| import org.apache.myfaces.tobago.util.MessageUtils; |
| |
| import javax.faces.application.FacesMessage; |
| import javax.faces.component.StateHolder; |
| import javax.faces.component.UIComponent; |
| import javax.faces.context.FacesContext; |
| import javax.faces.validator.Validator; |
| import javax.faces.validator.ValidatorException; |
| import javax.servlet.http.Part; |
| import java.util.Arrays; |
| |
| /** |
| * <p><strong>FileItemValidator</strong> is a {@link Validator} that checks |
| * the FileItem in the value of the associated component. |
| */ |
| @org.apache.myfaces.tobago.apt.annotation.Validator(id = FileItemValidator.VALIDATOR_ID) |
| public class FileItemValidator implements Validator, StateHolder { |
| public static final String VALIDATOR_ID = "org.apache.myfaces.tobago.FileItem"; |
| public static final String SIZE_LIMIT_MESSAGE_ID = "org.apache.myfaces.tobago.FileItemValidator.SIZE_LIMIT"; |
| public static final String CONTENT_TYPE_MESSAGE_ID = "org.apache.myfaces.tobago.FileItemValidator.CONTENT_TYPE"; |
| private Integer maxSize = null; |
| private String[] contentType; |
| private boolean transientValue; |
| |
| /** |
| * No-arg constructor used during restoreState |
| */ |
| public FileItemValidator() { |
| } |
| |
| @Override |
| public void validate(final FacesContext facesContext, final UIComponent component, final Object value) |
| throws ValidatorException { |
| if (value != null && component instanceof AbstractUIFile) { |
| final Part file = (Part) value; |
| if (maxSize != null && file.getSize() > maxSize) { |
| throw new ValidatorException(MessageUtils.getMessage( |
| facesContext, FacesMessage.SEVERITY_ERROR, SIZE_LIMIT_MESSAGE_ID, maxSize, component.getId())); |
| } |
| // Check only a valid file |
| if (file.getSize() > 0 && contentType != null && contentType.length > 0) { |
| boolean found = false; |
| for (final String contentTypeStr : contentType) { |
| if (ContentType.valueOf(contentTypeStr).match(ContentType.valueOf(file.getContentType()))) { |
| found = true; |
| break; |
| } |
| } |
| if (!found) { |
| final String message; |
| if (contentType.length == 1) { |
| message = contentType[0]; |
| } else { |
| message = Arrays.toString(contentType); |
| } |
| throw new ValidatorException(MessageUtils.getMessage( |
| facesContext, FacesMessage.SEVERITY_ERROR, CONTENT_TYPE_MESSAGE_ID, message, component.getId())); |
| } |
| } |
| } |
| } |
| |
| public int getMaxSize() { |
| return maxSize; |
| } |
| |
| public void setMaxSize(final int maxSize) { |
| if (maxSize > 0) { |
| this.maxSize = maxSize; |
| } |
| } |
| |
| public String[] getContentType() { |
| return contentType; |
| } |
| |
| public void setContentType(final String[] contentType) { |
| this.contentType = contentType; |
| } |
| |
| @Override |
| public Object saveState(final FacesContext context) { |
| final Object[] values = new Object[2]; |
| values[0] = maxSize; |
| values[1] = contentType; |
| return values; |
| } |
| |
| @Override |
| public void restoreState(final FacesContext context, final Object state) { |
| final Object[] values = (Object[]) state; |
| maxSize = (Integer) values[0]; |
| contentType = (String[]) values[1]; |
| } |
| |
| @Override |
| public boolean isTransient() { |
| return transientValue; |
| } |
| |
| @Override |
| public void setTransient(final boolean newTransientValue) { |
| this.transientValue = newTransientValue; |
| } |
| } |