WB 2.08.x

<?php

  /**

  * QuickSkin Extension mailtoencode

  * Protects email address from being scanned by spam bots

  * and optionally builds full mailto: link

  *

  * Usage Example 1:

  * Content:  $template->assign('AUTHOR', 'yourname@yourdomain.com' );

  * Template: Author: {mailtoencode:AUTHOR}

  * Result:   Author: <a href="&#109&#97&#105&#108&#116&#111&#58&#121;&#111;&#117;&#114;&#110;&#97;&#109;&#101;&#64;&#121;&#111;&#117;&#114;&#100;&#111;&#109;&#97;&#105;&#110;&#46;&#99;&#111;&#109;">yourname&#64;yourdomain&#46;com</a>

  *

  * Usage Example 2 (Email address only):

  * Template: Author: {mailtoencode:"yourname@yourdomain.com"}

  * Result:   Author: <a href="&#109&#97&#105&#108&#116&#111&#58&#121;&#111;&#117;&#114;&#110;&#97;&#109;&#101;&#64;&#121;&#111;&#117;&#114;&#100;&#111;&#109;&#97;&#105;&#110;&#46;&#99;&#111;&#109;">yourname&#64;yourdomain&#46;com</a>

  *

  * Usage Example 3 (Email address and name):

  * Template: Author: {mailtoencode:"yourname@yourdomain.com","Your Name"}

  * Result:   Author: <a href="&#109&#97&#105&#108&#116&#111&#58&#121;&#111;&#117;&#114;&#110;&#97;&#109;&#101;&#64;&#121;&#111;&#117;&#114;&#100;&#111;&#109;&#97;&#105;&#110;&#46;&#99;&#111;&#109;">Your Name</a>

  *

  * Usage Example 4 (Email address and name, encode set to true, and class name):

  * Template: Author: {mailtoencode:"yourname@yourdomain.com","Your Name",true,'white'}

  * Result:   Author: <a href="&#109&#97&#105&#108&#116&#111&#58&#121;&#111;&#117;&#114;&#110;&#97;&#109;&#101;&#64;&#121;&#111;&#117;&#114;&#100;&#111;&#109;&#97;&#105;&#110;&#46;&#99;&#111;&#109;" class="white">Your Name</a>

  *

  * Usage Example 5 (Email address and name, encode set to true, class name and style defined):

  * Template: Author: {mailtoencode:"yourname@yourdomain.com","Your Name",true,'white','font-size:18px;'}

  * Result:   Author: <a href="&#109&#97&#105&#108&#116&#111&#58&#121;&#111;&#117;&#114;&#110;&#97;&#109;&#101;&#64;&#121;&#111;&#117;&#114;&#100;&#111;&#109;&#97;&#105;&#110;&#46;&#99;&#111;&#109;" class="white" style="font-size:18px;">Your Name</a>

  *

  * Usage Example 6 (Email address and name, encode set to true, no class name and style defined):

  * Template: Author: {mailtoencode:"yourname@yourdomain.com","Your Name",true,'','font-size:18px;'}

  * Result:   Author: <a href="&#109&#97&#105&#108&#116&#111&#58&#121;&#111;&#117;&#114;&#110;&#97;&#109;&#101;&#64;&#121;&#111;&#117;&#114;&#100;&#111;&#109;&#97;&#105;&#110;&#46;&#99;&#111;&#109;" style="font-size:18px;">Your Name</a>

  *

  * @author Andy Prevost andy@codeworxtech.com

  */

  if(!function_exists('str_split')){

    function str_split($text, $split = 1){

      $array = array();

      for($i=0; $i < strlen($text); $i++){

        $key = NULL;

        for ($j = 0; $j < $split; $j++){

          $key .= $text[$i];

        }

        array_push($array, $key);

      }

        return $array;

    }

  }

  function qx_mailtoencode ($emailAddy,$text='',$buildLink=true,$class='',$style='') {

    if ( $buildLink ) {

      // mailto: portion

      $obfuscatedMailTo = '';

      $mailto           = "mailto:";

      $length           = strlen($mailto);

      for ($i = 0; $i < $length; $i++) {

        $obfuscatedMailTo .= "&#" . ord($mailto[$i]);

      }

      // END - mailto: portion

      $emailLink  = '<a href="';

      $emailLink .= $obfuscatedMailTo;

    }

    $emailLink .= obfuscate($emailAddy);

    if ( $buildLink ) {

      $emailLink .= '"';

      if ( trim($class) != '' ) {

        $emailLink .= ' class="' . $class . '"';

      }

      if ( trim($style) != '' ) {

        $emailLink .= ' style="' . $style . '"';

      }

      $emailLink .= '>';

      if ( trim($text) != '' ) {

        $newText    = trim($text);

        $newText    = str_replace('@','@',$newText);

        $newText    = str_replace('.','.',$newText);

        $emailLink .= $newText;

      } else {

        $newText    = trim($emailAddy);

        $newText    = str_replace('@','@',$newText);

        $newText    = str_replace('.','.',$newText);

        $emailLink .= $newText;

      }

      $emailLink .= "</a>";

    }

    return $emailLink;

  }

  function obfuscate($text) { // NOTE: Uses function str_split

    preg_match_all("/[-a-z0-9\._]+@[-a-z0-9\._]+\.[a-z]{2,4}/", $text, $emails);

    $patterns = array();

    $replacements = array();

    foreach($emails[0] as $email) {

      if(!in_array("/$email/", $patterns)) {

        $obfuscated = '';

        foreach(str_split($email) as $char) {

          $obfuscated .= '&#'.ord($char).';';

        }

        $patterns[] = "/$email/";

        $replacements[] = $obfuscated;

      }

    }

    $text = preg_replace($patterns, $replacements, $text);

    return $text;

  }

?>