Package org.apache.wicket.extensions.validation.validator

Source Code of org.apache.wicket.extensions.validation.validator.RfcCompliantEmailAddressValidator

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/*
* 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.wicket.extensions.validation.validator;

import java.util.regex.Pattern;

import org.apache.wicket.validation.IValidatable;
import org.apache.wicket.validation.IValidationError;
import org.apache.wicket.validation.IValidator;
import org.apache.wicket.validation.ValidationError;
import org.apache.wicket.validation.validator.EmailAddressValidator;


/**
* Validator for validating email addresses according to the RFC 822. This validator uses the
* regular expression taken from the Perl implementation of RFC 822.
* <p>
* Most users will be satisfied with the {@link EmailAddressValidator}
* </p>
*
* @see <a href="http://www.ex-parrot.com/~pdw/Mail-RFC822-Address.html">Perl Regex implementation
*      of RFC 822</a>
* @see <a href="http://www.ietf.org/rfc/rfc0822.txt?number=822">RFC 822</a>
* @author Frank Bille
*/
public class RfcCompliantEmailAddressValidator implements IValidator<String>
{
  private static final long serialVersionUID = 1L;

  private static final String EMAIL_PATTERN = "(?:(?:\\r\\n)?[ \\t])*(?:(?:(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t]"
    + ")+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:"
    + "\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:("
    + "?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ "
    + "\\t]))*\"(?:(?:\\r\\n)?[ \\t])*))*@(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\0"
    + "31]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\"
    + "](?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+"
    + "(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:"
    + "(?:\\r\\n)?[ \\t])*))*|(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z"
    + "|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)"
    + "?[ \\t])*)*\\<(?:(?:\\r\\n)?[ \\t])*(?:@(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\"
    + "r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?["
    + " \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)"
    + "?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t]"
    + ")*))*(?:,@(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?["
    + " \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*"
    + ")(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t]"
    + ")+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*)"
    + "*:(?:(?:\\r\\n)?[ \\t])*)?(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+"
    + "|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r"
    + "\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:"
    + "\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t"
    + "]))*\"(?:(?:\\r\\n)?[ \\t])*))*@(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031"
    + "]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\]("
    + "?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?"
    + ":(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?"
    + ":\\r\\n)?[ \\t])*))*\\>(?:(?:\\r\\n)?[ \\t])*)|(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?"
    + ":(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?"
    + "[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*)*:(?:(?:\\r\\n)?[ \\t])*(?:(?:(?:[^()<>@,;:\\\".\\[\\] "
    + "\\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|"
    + "\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>"
    + "@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\""
    + "(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*))*@(?:(?:\\r\\n)?[ \\t]"
    + ")*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\\"
    + "\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?"
    + ":[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\["
    + "\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*|(?:[^()<>@,;:\\\".\\[\\] \\000-"
    + "\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|("
    + "?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*)*\\<(?:(?:\\r\\n)?[ \\t])*(?:@(?:[^()<>@,;"
    + ":\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[(["
    + "^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\""
    + ".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\"
    + "]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*(?:,@(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\"
    + "[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\"
    + "r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] "
    + "\\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]"
    + "|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*)*:(?:(?:\\r\\n)?[ \\t])*)?(?:[^()<>@,;:\\\".\\[\\] \\0"
    + "00-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\"
    + ".|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,"
    + ";:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\"(?"
    + ":[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*))*@(?:(?:\\r\\n)?[ \\t])*"
    + "(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\"."
    + "\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t])*(?:["
    + "^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]"
    + "]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*\\>(?:(?:\\r\\n)?[ \\t])*)(?:,\\s*("
    + "?:(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\\"
    + "\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:("
    + "?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=["
    + "\\[\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t"
    + "])*))*@(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t"
    + "])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?"
    + ":\\.(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|"
    + "\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*|(?:"
    + "[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\"
    + "]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*)*\\<(?:(?:\\r\\n)"
    + "?[ \\t])*(?:@(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\""
    + "()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)"
    + "?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>"
    + "@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*(?:,@(?:(?:\\r\\n)?["
    + " \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,"
    + ";:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:\\r\\n)?[ \\t]"
    + ")*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\\"
    + "\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*)*:(?:(?:\\r\\n)?[ \\t])*)?"
    + "(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\[\"()<>@,;:\\\"."
    + "\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])*)(?:\\.(?:(?:"
    + "\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z|(?=[\\["
    + "\"()<>@,;:\\\".\\[\\]]))|\"(?:[^\\\"\\r\\\\]|\\\\.|(?:(?:\\r\\n)?[ \\t]))*\"(?:(?:\\r\\n)?[ \\t])"
    + "*))*@(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])"
    + "+|\\Z|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*)(?:\\"
    + ".(?:(?:\\r\\n)?[ \\t])*(?:[^()<>@,;:\\\".\\[\\] \\000-\\031]+(?:(?:(?:\\r\\n)?[ \\t])+|\\Z"
    + "|(?=[\\[\"()<>@,;:\\\".\\[\\]]))|\\[([^\\[\\]\\r\\\\]|\\\\.)*\\](?:(?:\\r\\n)?[ \\t])*))*\\>(?:("
    + "?:\\r\\n)?[ \\t])*))*)?;\\s*)";

  private static final Pattern PATTERN = Pattern.compile(EMAIL_PATTERN);

  /** Singleton instance */
  private static final RfcCompliantEmailAddressValidator INSTANCE = new RfcCompliantEmailAddressValidator();

  /**
   * @return Instance of RFC compliant emailaddress validator
   */
  public static RfcCompliantEmailAddressValidator getInstance()
  {
    return INSTANCE;
  }

  protected RfcCompliantEmailAddressValidator()
  {
  }

  @Override
  public void validate(IValidatable<String> validatable)
  {
    String email = validatable.getValue().toString();
    if (email.length() != email.trim().length())
    {
      validatable.error(decorate(new ValidationError(this), validatable));
    }
    else if (!PATTERN.matcher(validatable.getValue()).matches())
    {
      validatable.error(decorate(new ValidationError(this), validatable));
    }
  }

  /**
   * Allows subclasses to decorate reported errors
   *
   * @param error
   * @param validatable
   * @return decorated error
   */
  protected IValidationError decorate(IValidationError error, IValidatable<String> validatable)
  {
    return error;
  }
}
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Related Classes of org.apache.wicket.extensions.validation.validator.RfcCompliantEmailAddressValidator

  • org.apache.wicket.extensions.validation.validator.RfcCompliantEmailValidatorTest
  • org.apache.wicket.validation.ValidationError
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