|
|
@ -784,42 +784,9 @@ class rcube_vcard
|
|
|
|
*/
|
|
|
|
*/
|
|
|
|
private static function detect_encoding($string)
|
|
|
|
private static function detect_encoding($string)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
if (substr($string, 0, 4) == "\0\0\xFE\xFF") return 'UTF-32BE'; // Big Endian
|
|
|
|
$fallback = rcube::get_instance()->config->get('default_charset', 'ISO-8859-1'); // fallback to Latin-1
|
|
|
|
if (substr($string, 0, 4) == "\xFF\xFE\0\0") return 'UTF-32LE'; // Little Endian
|
|
|
|
|
|
|
|
if (substr($string, 0, 2) == "\xFE\xFF") return 'UTF-16BE'; // Big Endian
|
|
|
|
return rcube_charset::detect($string, $fallback);
|
|
|
|
if (substr($string, 0, 2) == "\xFF\xFE") return 'UTF-16LE'; // Little Endian
|
|
|
|
|
|
|
|
if (substr($string, 0, 3) == "\xEF\xBB\xBF") return 'UTF-8';
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// heuristics
|
|
|
|
|
|
|
|
if ($string[0] == "\0" && $string[1] == "\0" && $string[2] == "\0" && $string[3] != "\0") return 'UTF-32BE';
|
|
|
|
|
|
|
|
if ($string[0] != "\0" && $string[1] == "\0" && $string[2] == "\0" && $string[3] == "\0") return 'UTF-32LE';
|
|
|
|
|
|
|
|
if ($string[0] == "\0" && $string[1] != "\0" && $string[2] == "\0" && $string[3] != "\0") return 'UTF-16BE';
|
|
|
|
|
|
|
|
if ($string[0] != "\0" && $string[1] == "\0" && $string[2] != "\0" && $string[3] == "\0") return 'UTF-16LE';
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// use mb_detect_encoding()
|
|
|
|
|
|
|
|
$encodings = array('UTF-8', 'ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3',
|
|
|
|
|
|
|
|
'ISO-8859-4', 'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8', 'ISO-8859-9',
|
|
|
|
|
|
|
|
'ISO-8859-10', 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'ISO-8859-16',
|
|
|
|
|
|
|
|
'WINDOWS-1252', 'WINDOWS-1251', 'BIG5', 'GB2312');
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if (function_exists('mb_detect_encoding') && ($enc = mb_detect_encoding($string, $encodings)))
|
|
|
|
|
|
|
|
return $enc;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// No match, check for UTF-8
|
|
|
|
|
|
|
|
// from http://w3.org/International/questions/qa-forms-utf-8.html
|
|
|
|
|
|
|
|
if (preg_match('/\A(
|
|
|
|
|
|
|
|
[\x09\x0A\x0D\x20-\x7E]
|
|
|
|
|
|
|
|
| [\xC2-\xDF][\x80-\xBF]
|
|
|
|
|
|
|
|
| \xE0[\xA0-\xBF][\x80-\xBF]
|
|
|
|
|
|
|
|
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}
|
|
|
|
|
|
|
|
| \xED[\x80-\x9F][\x80-\xBF]
|
|
|
|
|
|
|
|
| \xF0[\x90-\xBF][\x80-\xBF]{2}
|
|
|
|
|
|
|
|
| [\xF1-\xF3][\x80-\xBF]{3}
|
|
|
|
|
|
|
|
| \xF4[\x80-\x8F][\x80-\xBF]{2}
|
|
|
|
|
|
|
|
)*\z/xs', substr($string, 0, 2048)))
|
|
|
|
|
|
|
|
return 'UTF-8';
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return rcube::get_instance()->config->get('default_charset', 'ISO-8859-1'); # fallback to Latin-1
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|