library/smarty/libs/plugins/function.mailto.php
author Markus Bröker <broeker.markus@googlemail.com>
Fri, 13 Nov 2015 22:13:11 +0100
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Datenbank ist jetzt frei konfigurierbar
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<?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<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 encode them.<br>
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 * Params:
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 * <pre>
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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 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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 * </pre>
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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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 *
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 * @link     http://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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    static $_allowed_encoding = array('javascript' => true, 'javascript_charcode' => true, 'hex' => true, 'none' => true);
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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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    $search = array('%40', '%2C');
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    $replace = array('@', ',');
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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[] = $var . '=' . str_replace($search, $replace, rawurlencode($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 = $value;
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            default:
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        }
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    }
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    if ($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[$encode])) {
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        trigger_error("mailto: 'encode' parameter must be none, javascript, javascript_charcode or hex", E_USER_WARNING);
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        return;
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    }
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    // FIXME: (rodneyrehm) document.write() excues me what? 1998 has passed!
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    if ($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, $_length = strlen($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">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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            . "{document.write(String.fromCharCode("
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            . implode(',', $ord)
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            . "))"
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            . "}\n"
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            . "</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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            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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        $address_encode = '';
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   135
        for ($x = 0, $_length = strlen($address); $x < $_length; $x++) {
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   136
            if (preg_match('!\w!' . Smarty::$_UTF8_MODIFIER, $address[$x])) {
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   137
                $address_encode .= '%' . bin2hex($address[$x]);
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parents:
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   138
            } else {
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   139
                $address_encode .= $address[$x];
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   140
            }
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   141
        }
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parents:
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   142
        $text_encode = '';
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   143
        for ($x = 0, $_length = strlen($text); $x < $_length; $x++) {
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   144
            $text_encode .= '&#x' . bin2hex($text[$x]) . ';';
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parents:
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   145
        }
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parents:
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   146
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   147
        $mailto = "&#109;&#97;&#105;&#108;&#116;&#111;&#58;";
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parents:
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   148
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   149
        return '<a href="' . $mailto . $address_encode . '" ' . $extra . '>' . $text_encode . '</a>';
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   150
    } else {
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parents:
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   151
        // no encoding
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   152
        return '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
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parents:
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   153
    }
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parents:
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   154
}