[JIRA-Opensymphony] Commented: (CORE-51) MailUtils in Oscore method verifyEmail

The following comment has been added to this issue:

     Author: Scott Farquhar
    Created: Wed, 13 Aug 2003 8:36 AM
       Body:
I don't see the problem?

RFC822 (6.1) states that subdomains do not need a '.' in them to be valid.
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View the issue:

  http://jira.opensymphony.com/secure/ViewIssue.jspa?key=CORE-51


Here is an overview of the issue:
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        Key: CORE-51
    Summary: MailUtils in Oscore method verifyEmail
       Type: Improvement

     Status: Assigned
   Priority: Minor

    Project: OSCore
   Versions:
             2.2.1

   Assignee: Patrick Lightbody
   Reporter: Adeyemi E  Adegbile

    Created: Thu, 31 Jul 2003 2:18 AM
    Updated: Thu, 31 Jul 2003 2:18 AM
Environment: Not Applicable

Description:
     I downloaded oscore for a inhouse project. I discover there might be a problem in the implementation of the method
 public final static boolean verifyEmail(String email) when it verifes
emails
 I believe the problem will here,which is
     if (email.indexOf('@') < 1)

 in my test I have change the code.

 I have included the old and the new code

public class Tester {

   public static void main(String[] ars){
        System.out.println(Tester.verifyEmail("[email protected]"));
   }
 
> *
>     * Verify that the given string is a valid email address.
>    * "Validity" in this context only means that the address conforms
>    * to the correct syntax (not if the address actually exists).
>     *
>     * @param email The email address to verify.
>    * @return a boolean indicating whether the email address is correctly
formatted.
>
>    public final static boolean verifyEmail(String email) {
>        if (email == null) {
>            return false;
>        }
>
>        if (email.indexOf('@') < 1) {
>            return false;
>        }
>
>        try {
>            new InternetAddress(email);
>
>            return true;
>        } catch (AddressException e) {
>            return false;
>        }
>    }
> */
>      public final static boolean verifyEmail(String email) {
>          if (email == null) {
>              return false;
>          }
>
>          if (email.indexOf('@') < 1) {
>              return false;
>          }
>          //lastIndexOf(String str)
>        if (email.indexOf('.') < email.indexOf('@'))
>            return false;
>
>          return true;
>    }
> }
>

 This is the new updated Class file if it is acceptable

 /*
 * Copyright (c) 2002-2003 by OpenSymphony
  * All rights reserved.
  */
 package com.opensymphony.util;

 import java.io.*;

 import javax.mail.MessagingException;
 import javax.mail.internet.AddressException;
 import javax.mail.internet.InternetAddress;
 import javax.mail.internet.MimeUtility;


 /**
  * Utility methods once in TextUtils that require the mail.jar library.
  *
  * @author $Author: plightbo $
  * @version $Revision: 1.1 $
  */
 public class MailUtils {
     //~ Methods
////////////////////////////////////////////////////////////////

     /**
     * Decode binary data from String using base64.
     *
     * @see #encodeBytes(byte[])
     */
     public final static byte[] decodeBytes(String str) throws IOException
{
         try {
             ByteArrayInputStream encodedStringStream = new
ByteArrayInputStream(str.getBytes());
             InputStream decoder = MimeUtility.decode(encodedStringStream,
"base64");
             ByteArrayOutputStream decodedByteStream = new
ByteArrayOutputStream();
             byte[] buffer = new byte[256];

             while (true) {
                 int read = decoder.read(buffer);

                 if (read == -1) {
                     break;
                 }

                 decodedByteStream.write(buffer, 0, read);
             }

             decodedByteStream.flush();

             return decodedByteStream.toByteArray();
         } catch (MessagingException me) {
             throw new IOException("Cannot decode data.");
         }
     }

     /**
      * Encode binary data into String using base64.
      *
      * @see #decodeBytes(java.lang.String)
      */
     public final static String encodeBytes(byte[] data) throws IOException
{
         try {
             ByteArrayOutputStream encodedByteStream = new
ByteArrayOutputStream();
             OutputStream encoder = MimeUtility.encode(encodedByteStream,
"base64");
             encoder.write(data);
             encoder.flush();

             return new String(encodedByteStream.toByteArray());
         } catch (MessagingException me) {
             throw new IOException("Cannot encode data.");
         }
     }

     /**
      * Verify that the given string is a valid email address.
     * "Validity" in this context only means that the address conforms
     * to the correct syntax (not if the address actually exists).
      *
      * @param email The email address to verify.
     * @return a boolean indicating whether the email address is correctly
formatted.
      */
     public final static boolean verifyEmail(String email) {
         if (email == null) {
             return false;
         }

         // (email.indexOf('@') < 1) {
         //    return false;

      // Changes applied to validation
      if (email.lastIndexOf('.') < email.indexOf('@')) {
            return false;
         }

         try {
             new InternetAddress(email);

             return true;
         } catch (AddressException e) {
             return false;
         }
     }
 }



> Regards
> Adeyemi E Adegbile



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