diff options
Diffstat (limited to 'program/lib/Roundcube/rcube_charset.php')
| -rw-r--r-- | program/lib/Roundcube/rcube_charset.php | 85 |
1 files changed, 55 insertions, 30 deletions
diff --git a/program/lib/Roundcube/rcube_charset.php b/program/lib/Roundcube/rcube_charset.php index 968d1c4b8..a7f26a3f4 100644 --- a/program/lib/Roundcube/rcube_charset.php +++ b/program/lib/Roundcube/rcube_charset.php @@ -646,12 +646,13 @@ class rcube_charset /** * A method to guess character set of a string. * - * @param string $string String. - * @param string $failover Default result for failover. + * @param string $string String + * @param string $failover Default result for failover + * @param string $language User language * * @return string Charset name */ - public static function detect($string, $failover='') + public static function detect($string, $failover = null, $language = null) { if (substr($string, 0, 4) == "\0\0\xFE\xFF") return 'UTF-32BE'; // Big Endian if (substr($string, 0, 4) == "\xFF\xFE\0\0") return 'UTF-32LE'; // Little Endian @@ -666,38 +667,62 @@ class rcube_charset if ($string[0] != "\0" && $string[1] == "\0" && $string[2] != "\0" && $string[3] == "\0") return 'UTF-16LE'; if (function_exists('mb_detect_encoding')) { - // FIXME: the order is important, because sometimes - // iso string is detected as euc-jp and etc. - $enc = array( - 'UTF-8', 'SJIS', 'GB2312', - 'ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4', - 'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8', 'ISO-8859-9', - 'ISO-8859-10', 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'ISO-8859-16', - 'WINDOWS-1252', 'WINDOWS-1251', 'EUC-JP', 'EUC-TW', 'KOI8-R', 'BIG5', - 'ISO-2022-KR', 'ISO-2022-JP', - ); + if (empty($language)) { + $rcube = rcube::get_instance(); + $language = $rcube->get_user_language(); + } + + // Prioritize charsets according to current language (#1485669) + switch ($language) { + case 'ja_JP': // for Japanese + $prio = array('ISO-2022-JP', 'JIS', 'UTF-8', 'EUC-JP', 'eucJP-win', 'SJIS', 'SJIS-win'); + break; + + case 'zh_CN': // for Chinese (Simplified) + case 'zh_TW': // for Chinese (Traditional) + $prio = array('UTF-8', 'BIG-5', 'GB2312', 'EUC-TW'); + break; + + case 'ko_KR': // for Korean + $prio = array('UTF-8', 'EUC-KR', 'ISO-2022-KR'); + break; + + case 'ru_RU': // for Russian + $prio = array('UTF-8', 'WINDOWS-1251', 'KOI8-R'); + break; - $result = mb_detect_encoding($string, join(',', $enc)); + default: + $prio = array('UTF-8', 'SJIS', 'GB2312', + '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', 'EUC-JP', 'EUC-TW', 'KOI8-R', 'BIG-5', + 'ISO-2022-KR', 'ISO-2022-JP', + ); + } + + $encodings = array_unique(array_merge($prio, mb_list_encodings())); + + return mb_detect_encoding($string, $encodings); } - else { - // No match, check for UTF-8 - // from http://w3.org/International/questions/qa-forms-utf-8.html - if (preg_match('/\A( - [\x09\x0A\x0D\x20-\x7E] - | [\xC2-\xDF][\x80-\xBF] - | \xE0[\xA0-\xBF][\x80-\xBF] - | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} - | \xED[\x80-\x9F][\x80-\xBF] - | \xF0[\x90-\xBF][\x80-\xBF]{2} - | [\xF1-\xF3][\x80-\xBF]{3} - | \xF4[\x80-\x8F][\x80-\xBF]{2} - )*\z/xs', substr($string, 0, 2048)) - ) { + + // 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 $result ? $result : $failover; + return $failover; } |