<?php
/**
* gTemplate Plugins
*
* @package gTemplate
* @subpackage Plugins
*/
/**
* gTemplate {mailto} function plugin
*
* Type: function<br>
* Name: mailto<br>
* Date: May 21, 2002
* Purpose: automate mailto address link creation, and optionally
* encode them.<br>
* Input:<br>
* - address = e-mail address
* - text = (optional) text to display, default is address
* - encode = (optional) can be one of:
* * none : no encoding (default)
* * javascript : encode with javascript
* * javascript_charcode : encode with javascript charcode
* * hex : encode with hexidecimal (no javascript)
* - cc = (optional) address(es) to carbon copy
* - bcc = (optional) address(es) to blind carbon copy
* - subject = (optional) e-mail subject
* - newsgroups = (optional) newsgroup(s) to post to
* - followupto = (optional) address(es) to follow up to
* - extra = (optional) extra tags for the href link
*
* Examples:
* <pre>
* {mailto address="me@domain.com"}
* {mailto address="me@domain.com" encode="javascript"}
* {mailto address="me@domain.com" encode="hex"}
* {mailto address="me@domain.com" subject="Hello to you!"}
* {mailto address="me@domain.com" cc="you@domain.com,they@domain.com"}
* {mailto address="me@domain.com" extra='class="mailto"'}
* </pre>
*
* @version 1.0
* @author Tamas David (G-Lex) <glex at mittudomain.info>
* @link https://github.com/glex86/g-template-php G-Template Engine on Github
*
* @internal Some source codes are taken from Smarty
* @internal author Monte Ohrt <monte at ohrt dot com>
* @internal link http://smarty.net Smarty
*/
function tpl_function_mailto($params, &$gTpl) {
$extra = '';
if (empty($params['address'])) {
$gTpl->trigger_error("mailto: missing 'address' parameter");
return;
} else {
$address = $params['address'];
}
$text = $address;
// netscape and mozilla do not decode %40 (@) in BCC field (bug?)
// so, don't encode it.
$search = array('%40', '%2C');
$replace = array('@', ',');
$mail_parms = array();
foreach ($params as $var => $value) {
switch ($var) {
case 'cc':
case 'bcc':
case 'followupto':
if (!empty($value))
$mail_parms[] = $var . '=' . str_replace($search, $replace, rawurlencode($value));
break;
case 'subject':
case 'newsgroups':
$mail_parms[] = $var . '=' . rawurlencode($value);
break;
case 'extra':
case 'text':
$$var = $value;
default:
}
}
$mail_parm_vals = '';
for ($i = 0; $i < count($mail_parms); $i++) {
$mail_parm_vals .= (0 == $i) ? '?' : '&';
$mail_parm_vals .= $mail_parms[$i];
}
$address .= $mail_parm_vals;
$encode = (empty($params['encode'])) ? 'none' : $params['encode'];
if (!in_array($encode, array('javascript', 'javascript_charcode', 'hex', 'none'))) {
$gTpl->trigger_error("mailto: 'encode' parameter must be none, javascript or hex");
return;
}
if ($encode == 'javascript') {
$string = 'document.write(\'<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>\');';
$js_encode = '';
for ($x = 0; $x < strlen($string); $x++) {
$js_encode .= '%' . bin2hex($string[$x]);
}
return '<script type="text/javascript">eval(unescape(\'' . $js_encode . '\'))</script>';
} elseif ($encode == 'javascript_charcode') {
$string = '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
for ($x = 0, $y = strlen($string); $x < $y; $x++) {
$ord[] = ord($string[$x]);
}
$_ret = "<script type=\"text/javascript\" language=\"javascript\">\n";
$_ret .= "<!--\n";
$_ret .= "{document.write(String.fromCharCode(";
$_ret .= implode(',', $ord);
$_ret .= "))";
$_ret .= "}\n";
$_ret .= "//-->\n";
$_ret .= "</script>\n";
return $_ret;
} elseif ($encode == 'hex') {
preg_match('!^(.*)(\?.*)$!', $address, $match);
if (!empty($match[2])) {
$gTpl->trigger_error("mailto: hex encoding does not work with extra attributes. Try javascript.");
return;
}
$address_encode = '';
for ($x = 0; $x < strlen($address); $x++) {
if (preg_match('!\w!', $address[$x])) {
$address_encode .= '%' . bin2hex($address[$x]);
} else {
$address_encode .= $address[$x];
}
}
$text_encode = '';
for ($x = 0; $x < strlen($text); $x++) {
$text_encode .= '&#x' . bin2hex($text[$x]) . ';';
}
$mailto = "mailto:";
return '<a href="' . $mailto . $address_encode . '" ' . $extra . '>' . $text_encode . '</a>';
} else {
// no encoding
return '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
}
}
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