/**
* Takes a clear-text message body for a plain text email, finds all 'http://' links and if they are longer than 76 chars they are converted to a shorter URL with a hash parameter. The real parameter is stored in the database and the hash-parameter/URL will be redirected to the real parameter when the link is clicked.
* This function is about preserving long links in messages.
*
* @param string $message Message content
* @param string $urlmode URL mode; "76" or "all
* @param string $index_script_url URL of index script (see makeRedirectUrl())
* @return string Processed message content
* @see makeRedirectUrl()
*/
public static function substUrlsInPlainText($message, $urlmode = '76', $index_script_url = '')
{
switch ((string) $urlmode) {
case '':
$lengthLimit = FALSE;
break;
case 'all':
$lengthLimit = 0;
break;
case '76':
default:
$lengthLimit = (int) $urlmode;
}
if ($lengthLimit === FALSE) {
// No processing
$messageSubstituted = $message;
} else {
$messageSubstituted = preg_replace_callback('/(http|https):\\/\\/.+(?=[\\]\\.\\?]*([\\! \'"()<>]+|$))/iU', function (array $matches) use($lengthLimit, $index_script_url) {
return GeneralUtility::makeRedirectUrl($matches[0], $lengthLimit, $index_script_url);
}, $message);
}
return $messageSubstituted;
}
