include/libs/template_lite/plugins/function.mailto.php

   1 <?php
   2
   3 /*
   4  * Template Lite plugin
   5  * -------------------------------------------------------------
   6  * Type:     function
   7  * Name:     mailto
   8  * Version:  1.2
   9  * Date:     May 21, 2002
  10  * Author:       Monte Ohrt <monte@ispi.net>
  11  * Credits:  Jason Sweat (added cc, bcc and subject functionality)
  12  * Purpose:  automate mailto address link creation, and optionally
  13  *           encode them.
  14  * Input:    address = e-mail address
  15  *           text = (optional) text to display, default is address
  16  *           encode = (optional) can be one of:
  17  *                 none : no encoding (default)
  18  *                 javascript : encode with javascript
  19  *                 hex : encode with hexidecimal (no javascript)
  20  *           cc = (optional) address(es) to carbon copy
  21  *           bcc = (optional) address(es) to blind carbon copy
  22  *           subject = (optional) e-mail subject
  23  *           newsgroups = (optional) newsgroup(s) to post to
  24  *           followupto = (optional) address(es) to follow up to
  25  *           extra = (optional) extra tags for the href link
  26  *
  27  * Examples: {mailto address="me@domain.com"}
  28  *           {mailto address="me@domain.com" encode="javascript"}
  29  *           {mailto address="me@domain.com" encode="hex"}
  30  *           {mailto address="me@domain.com" subject="Hello to you!"}
  31  *           {mailto address="me@domain.com" cc="you@domain.com,they@domain.com"}
  32  *           {mailto address="me@domain.com" extra='class="mailto"'}
  33  * Taken from the original Smarty
  34  * http://smarty.php.net
  35  * -------------------------------------------------------------
  36  */
  37 function tpl_function_mailto($params, &$template_object)
  38 {
  39     extract($params);
  40
  41     if (empty($address))
  42         {
  43         throw new Template_Exception("mailto: missing 'address' parameter", $template_object);
  44         return;
  45     }
  46
  47     if (empty($text))
  48         {
  49                 $text = $address;
  50     }
  51
  52     if (empty($extra))
  53         {
  54                 $extra = "";
  55     }
  56
  57         // netscape and mozilla do not decode %40 (@) in BCC field (bug?)
  58         // so, don't encode it.
  59
  60         $mail_parms = array();
  61         if (!empty($cc))
  62         {
  63                 $mail_parms[] = 'cc='.str_replace('%40','@',rawurlencode($cc));
  64         }
  65
  66         if (!empty($bcc))
  67         {
  68                 $mail_parms[] = 'bcc='.str_replace('%40','@',rawurlencode($bcc));
  69         }
  70
  71         if (!empty($subject))
  72         {
  73                 $mail_parms[] = 'subject='.rawurlencode($subject);
  74         }
  75
  76         if (!empty($newsgroups))
  77         {
  78                 $mail_parms[] = 'newsgroups='.rawurlencode($newsgroups);
  79         }
  80
  81         if (!empty($followupto))
  82         {
  83                 $mail_parms[] = 'followupto='.str_replace('%40','@',rawurlencode($followupto));
  84         }
  85
  86         $mail_parm_vals = "";
  87         for ($i=0; $i<count($mail_parms); $i++)
  88         {
  89                 $mail_parm_vals .= (0==$i) ? '?' : '&';
  90                 $mail_parm_vals .= $mail_parms[$i];
  91         }
  92         $address .= $mail_parm_vals;
  93
  94         if (empty($encode))
  95         {
  96                 $encode = 'none';
  97     }
  98         elseif (!in_array($encode,array('javascript','hex','none')) )
  99         {
 100         throw new Template_Exception("mailto: 'encode' parameter must be none, javascript or hex", $template_object);
 101         return;
 102         }
 103
 104         if ($encode == 'javascript' )
 105         {
 106                 $string = 'document.write(\'<a href="mailto:'.$address.'" '.$extra.'>'.$text.'</a>\');';
 107                 $js_encode = '';
 108                 for ($x=0; $x < strlen($string); $x++)
 109                 {
 110                         $js_encode .= '%' . bin2hex($string[$x]);
 111                 }
 112                 return '<script type="text/javascript" language="javascript">eval(unescape(\''.$js_encode.'\'))</script>';
 113         }
 114         elseif ($encode == 'hex')
 115         {
 116                 preg_match('!^(.*)(\?.*)$!',$address,$match);
 117                 if(!empty($match[2]))
 118                 {
 119                 throw new Template_Exception("mailto: hex encoding does not work with extra attributes. Try javascript.", $template_object);
 120                 return;
 121                 }
 122                 $address_encode = "";
 123                 for ($x=0; $x < strlen($address); $x++)
 124                 {
 125                         if(preg_match('!\w!',$address[$x]))
 126                         {
 127                                 $address_encode .= '%' . bin2hex($address[$x]);
 128                         }
 129                         else
 130                         {
 131                                 $address_encode .= $address[$x];
 132                         }
 133                 }
 134                 $text_encode = "";
 135                 for ($x=0; $x < strlen($text); $x++)
 136                 {
 137                         $text_encode .= '&#x' . bin2hex($text[$x]).';';
 138                 }
 139                 return '<a href="mailto:'.$address_encode.'" '.$extra.'>'.$text_encode.'</a>';
 140         }
 141         else
 142         {
 143                 // no encoding
 144                 return '<a href="mailto:'.$address.'" '.$extra.'>'.$text.'</a>';
 145         }
 146 }
 147
 148 ?>