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163 lines
5 KiB
PHP
163 lines
5 KiB
PHP
<?php
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/**
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* Smarty plugin
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* @package Smarty
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* @subpackage plugins
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*/
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/**
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* Smarty {mailto} function plugin
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*
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* Type: function<br>
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* Name: mailto<br>
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* Date: May 21, 2002
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* Purpose: automate mailto address link creation, and optionally
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* encode them.<br>
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* Input:<br>
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* - address = e-mail address
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* - text = (optional) text to display, default is address
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* - encode = (optional) can be one of:
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* * none : no encoding (default)
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* * javascript : encode with javascript
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* * javascript_charcode : encode with javascript charcode
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* * hex : encode with hexidecimal (no javascript)
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* - cc = (optional) address(es) to carbon copy
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* - bcc = (optional) address(es) to blind carbon copy
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* - subject = (optional) e-mail subject
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* - newsgroups = (optional) newsgroup(s) to post to
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* - followupto = (optional) address(es) to follow up to
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* - extra = (optional) extra tags for the href link
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*
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* Examples:
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* <pre>
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* {mailto address="me@domain.com"}
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* {mailto address="me@domain.com" encode="javascript"}
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* {mailto address="me@domain.com" encode="hex"}
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* {mailto address="me@domain.com" subject="Hello to you!"}
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* {mailto address="me@domain.com" cc="you@domain.com,they@domain.com"}
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* {mailto address="me@domain.com" extra='class="mailto"'}
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* </pre>
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* @link http://smarty.php.net/manual/en/language.function.mailto.php {mailto}
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* (Smarty online manual)
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* @version 1.2
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* @author Monte Ohrt <monte at ohrt dot com>
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* @author credits to Jason Sweat (added cc, bcc and subject functionality)
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* @param array
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* @param Smarty
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* @return string
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*/
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function smarty_function_mailto($params, &$smarty)
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{
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$extra = '';
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if (empty($params['address'])) {
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$smarty->trigger_error("mailto: missing 'address' parameter");
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return;
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} else {
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$address = $params['address'];
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}
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$text = $address;
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// netscape and mozilla do not decode %40 (@) in BCC field (bug?)
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// so, don't encode it.
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$mail_parms = array();
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foreach ($params as $var=>$value) {
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switch ($var) {
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case 'cc':
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case 'bcc':
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case 'followupto':
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if (!empty($value))
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$mail_parms[] = $var.'='.str_replace('%40','@',rawurlencode($value));
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break;
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case 'subject':
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case 'newsgroups':
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$mail_parms[] = $var.'='.rawurlencode($value);
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break;
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case 'extra':
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case 'text':
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$$var = $value;
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default:
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}
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}
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$mail_parm_vals = '';
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for ($i=0; $i<count($mail_parms); $i++) {
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$mail_parm_vals .= (0==$i) ? '?' : '&';
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$mail_parm_vals .= $mail_parms[$i];
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}
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$address .= $mail_parm_vals;
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$encode = (empty($params['encode'])) ? 'none' : $params['encode'];
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if (!in_array($encode,array('javascript','javascript_charcode','hex','none')) ) {
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$smarty->trigger_error("mailto: 'encode' parameter must be none, javascript or hex");
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return;
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}
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if ($encode == 'javascript' ) {
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$string = 'document.write(\'<a href="mailto:'.$address.'" '.$extra.'>'.$text.'</a>\');';
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$js_encode = '';
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for ($x=0; $x < strlen($string); $x++) {
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$js_encode .= '%' . bin2hex($string[$x]);
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}
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return '<script type="text/javascript">eval(unescape(\''.$js_encode.'\'))</script>';
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} elseif ($encode == 'javascript_charcode' ) {
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$string = '<a href="mailto:'.$address.'" '.$extra.'>'.$text.'</a>';
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for($x = 0, $y = strlen($string); $x < $y; $x++ ) {
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$ord[] = ord($string[$x]);
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}
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$_ret = "<script type=\"text/javascript\" language=\"javascript\">\n";
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$_ret .= "<!--\n";
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$_ret .= "{document.write(String.fromCharCode(";
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$_ret .= implode(',',$ord);
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$_ret .= "))";
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$_ret .= "}\n";
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$_ret .= "//-->\n";
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$_ret .= "</script>\n";
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return $_ret;
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} elseif ($encode == 'hex') {
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preg_match('!^(.*)(\?.*)$!',$address,$match);
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if(!empty($match[2])) {
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$smarty->trigger_error("mailto: hex encoding does not work with extra attributes. Try javascript.");
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return;
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}
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$address_encode = '';
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for ($x=0; $x < strlen($address); $x++) {
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if(preg_match('!\w!',$address[$x])) {
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$address_encode .= '%' . bin2hex($address[$x]);
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} else {
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$address_encode .= $address[$x];
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}
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}
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$text_encode = '';
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for ($x=0; $x < strlen($text); $x++) {
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$text_encode .= '&#x' . bin2hex($text[$x]).';';
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}
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$mailto = "mailto:";
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return '<a href="'.$mailto.$address_encode.'" '.$extra.'>'.$text_encode.'</a>';
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} else {
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// no encoding
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return '<a href="mailto:'.$address.'" '.$extra.'>'.$text.'</a>';
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}
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}
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/* vim: set expandtab: */
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?>
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