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142 lines
5.1 KiB
142 lines
5.1 KiB
<?php |
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/** |
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* Smarty plugin |
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* |
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* @package Smarty |
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* @subpackage PluginsFunction |
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*/ |
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/** |
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* Smarty {mailto} function plugin |
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* Type: function |
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* Name: mailto |
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* Date: May 21, 2002 |
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* Purpose: automate mailto address link creation, and optionally encode them. |
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* Params: |
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* |
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* - address - (required) - 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 hexadecimal (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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* |
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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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* |
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* @link https://www.smarty.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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* |
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* @param array $params parameters |
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* |
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* @return string |
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*/ |
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function smarty_function_mailto($params) |
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{ |
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static $_allowed_encoding = [ |
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'javascript' => true, |
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'javascript_charcode' => true, |
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'hex' => true, |
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'none' => true |
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]; |
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$extra = ''; |
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if (empty($params[ 'address' ])) { |
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trigger_error("mailto: missing 'address' parameter", E_USER_WARNING); |
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return; |
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} else { |
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$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 = []; |
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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[] = $var . '=' . str_replace(['%40', '%2C'], ['@', ','], rawurlencode($value)); |
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} |
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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 = $value; |
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// no break |
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default: |
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} |
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} |
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if ($mail_parms) { |
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$address .= '?' . join('&', $mail_parms); |
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} |
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$encode = (empty($params[ 'encode' ])) ? 'none' : $params[ 'encode' ]; |
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if (!isset($_allowed_encoding[ $encode ])) { |
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trigger_error( |
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"mailto: 'encode' parameter must be none, javascript, javascript_charcode or hex", |
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E_USER_WARNING |
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); |
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return; |
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} |
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$string = '<a href="mailto:' . htmlspecialchars($address, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401, Smarty::$_CHARSET) . |
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'" ' . $extra . '>' . htmlspecialchars($text, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401, Smarty::$_CHARSET) . '</a>'; |
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if ($encode === 'javascript') { |
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$js_encode = ''; |
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for ($x = 0, $_length = strlen($string); $x < $_length; $x++) { |
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$js_encode .= '%' . bin2hex($string[ $x ]); |
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} |
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return '<script type="text/javascript">document.write(unescape(\'' . $js_encode . '\'))</script>'; |
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} elseif ($encode === 'javascript_charcode') { |
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for ($x = 0, $_length = strlen($string); $x < $_length; $x++) { |
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$ord[] = ord($string[ $x ]); |
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} |
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return '<script type="text/javascript">document.write(String.fromCharCode(' . implode(',', $ord) . '))</script>'; |
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} elseif ($encode === 'hex') { |
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preg_match('!^(.*)(\?.*)$!', $address, $match); |
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if (!empty($match[ 2 ])) { |
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trigger_error("mailto: hex encoding does not work with extra attributes. Try javascript.", E_USER_WARNING); |
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return; |
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} |
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$address_encode = ''; |
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for ($x = 0, $_length = strlen($address); $x < $_length; $x++) { |
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if (preg_match('!\w!' . Smarty::$_UTF8_MODIFIER, $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, $_length = strlen($text); $x < $_length; $x++) { |
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$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 $string; |
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} |
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}
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