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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.shiro.samples.sprhib.web;
20  
21  import org.apache.shiro.util.StringUtils;
22  import org.springframework.validation.Errors;
23  import org.springframework.validation.ValidationUtils;
24  import org.springframework.validation.Validator;
25  
26  import java.util.regex.Pattern;
27  
28  /**
29   * Validator for the signup form.
30   */
31  public class SignupValidator implements Validator {
32  
33      private static final String SIMPLE_EMAIL_REGEX = "[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,4}";
34  
35      public boolean supports(Class aClass) {
36          return SignupCommand.class.isAssignableFrom(aClass);
37      }
38  
39      public void validate(Object o, Errors errors) {
40          SignupCommand/../../../org/apache/shiro/samples/sprhib/web/SignupCommand.html#SignupCommand">SignupCommand command = (SignupCommand)o;
41          ValidationUtils.rejectIfEmptyOrWhitespace(errors, "username", "error.username.empty", "Please specify a username.");
42          ValidationUtils.rejectIfEmptyOrWhitespace(errors, "email", "error.email.empty", "Please specify an email address.");
43          if( StringUtils.hasText( command.getEmail() ) && !Pattern.matches( SIMPLE_EMAIL_REGEX, command.getEmail().toUpperCase() ) ) {
44              errors.rejectValue( "email", "error.email.invalid", "Please enter a valid email address." );
45          }
46          ValidationUtils.rejectIfEmptyOrWhitespace(errors, "password", "error.password.empty", "Please specify a password.");
47      }
48  }