| // Licensed 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.tapestry5.validator; |
| |
| import org.apache.tapestry5.Field; |
| import org.apache.tapestry5.MarkupWriter; |
| import org.apache.tapestry5.ValidationException; |
| import org.apache.tapestry5.ioc.MessageFormatter; |
| import org.apache.tapestry5.services.FormSupport; |
| import org.apache.tapestry5.services.Html5Support; |
| import org.apache.tapestry5.services.javascript.DataConstants; |
| import org.apache.tapestry5.services.javascript.JavaScriptSupport; |
| |
| import java.util.regex.Pattern; |
| |
| /** |
| * A validator that checks if a given string is well-formed email address. This validator is not configurable. |
| * |
| * Starting with release 5.4, this validator also performs client-side validation. |
| */ |
| public class Email extends AbstractValidator<Void, String> |
| { |
| |
| // The client-side uses a similar RE, but converts the input to lower case before applying the pattern. |
| // See validation.coffee. |
| |
| private static final Pattern PATTERN = Pattern |
| .compile("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?", Pattern.CASE_INSENSITIVE); |
| |
| final private Html5Support html5Support; |
| |
| public Email(JavaScriptSupport javaScriptSupport, Html5Support html5Support) |
| { |
| super(null, String.class, "invalid-email", javaScriptSupport); |
| this.html5Support = html5Support; |
| } |
| |
| public void render(Field field, Void constraintValue, MessageFormatter formatter, MarkupWriter writer, |
| FormSupport formSupport) |
| { |
| if (formSupport.isClientValidationEnabled()) |
| { |
| javaScriptSupport.require("t5/core/validation"); |
| |
| writer.attributes( |
| DataConstants.VALIDATION_ATTRIBUTE, true, |
| "data-validate-email", true, |
| "data-email-message", formatter.toString()); |
| } |
| |
| if (html5Support.isHtml5SupportEnabled()) { |
| writer.getElement().forceAttributes("type", "email"); |
| } |
| |
| } |
| |
| public void validate(Field field, Void constraintValue, MessageFormatter formatter, String value) |
| throws ValidationException |
| { |
| if (!PATTERN.matcher(value).matches()) throw new ValidationException(formatter.toString()); |
| } |
| } |