Joomla! Documentation™

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Description

Simple Javascript email Cloaker

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Syntax

static cloak($mail, $mailto=1, $text='', $email=1)

Parameter Name	Default Value	Description
$mail
$mailto	1
$text
$email	1

Defined in

libraries/joomla/html/html/email.php

Importing

jimport( 'joomla.html.html.email' );

Source Body

public static function cloak($mail, $mailto=1, $text='', $email=1)
{
        // convert text
        $mail                   = JHtmlEmail::_convertEncoding($mail);
        // split email by @ symbol
        $mail                   = explode('@', $mail);
        $mail_parts             = explode('.', $mail[1]);
        // random number
        $rand                   = rand(1, 100000);

        $replacement    = "\n <script language='JavaScript' type='text/javascript'>";
        $replacement    .= "\n <!--";
        $replacement    .= "\n var prefix = '&#109;a' + 'i&#108;' + '&#116;o';";
        $replacement    .= "\n var path = 'hr' + 'ef' + '=';";
        $replacement    .= "\n var addy". $rand ." = '". @$mail[0] ."' + '&#64;';";
        $replacement    .= "\n addy". $rand ." = addy". $rand ." + '". implode("' + '&#46;' + '", $mail_parts) ."';";

        if ($mailto) {
                // special handling when mail text is different from mail addy
                if ($text) {
                        if ($email) {
                                // convert text
                                $text                   = JHtmlEmail::_convertEncoding($text);
                                // split email by @ symbol
                                $text                   = explode('@', $text);
                                $text_parts             = explode('.', $text[1]);
                                $replacement    .= "\n var addy_text". $rand ." = '". @$text[0] ."' + '&#64;' + '". implode("' + '&#46;' + '", @$text_parts) ."';";
                        } else {
                                $replacement    .= "\n var addy_text". $rand ." = '". $text ."';";
                        }
                        $replacement    .= "\n document.write('<a ' + path + '\'' + prefix + ':' + addy". $rand ." + '\'>');";
                        $replacement    .= "\n document.write(addy_text". $rand .");";
                        $replacement    .= "\n document.write('<\/a>');";
                } else {
                        $replacement    .= "\n document.write('<a ' + path + '\'' + prefix + ':' + addy". $rand ." + '\'>');";
                        $replacement    .= "\n document.write(addy". $rand .");";
                        $replacement    .= "\n document.write('<\/a>');";
                }
        } else {
                $replacement    .= "\n document.write(addy". $rand .");";
        }
        $replacement    .= "\n //-->";
        $replacement    .= '\n </script>';

        // XHTML compliance `No Javascript` text handling
        $replacement    .= "<script language='JavaScript' type='text/javascript'>";
        $replacement    .= "\n <!--";
        $replacement    .= "\n document.write('<span style=\'display: none;\'>');";
        $replacement    .= "\n //-->";
        $replacement    .= "\n </script>";
        $replacement    .= JText::_('CLOAKING');
        $replacement    .= "\n <script language='JavaScript' type='text/javascript'>";
        $replacement    .= "\n <!--";
        $replacement    .= "\n document.write('</');";
        $replacement    .= "\n document.write('span>');";
        $replacement    .= "\n //-->";
        $replacement    .= "\n </script>";

        return $replacement;
}

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