-added encoding detection for attachment names when message part hasn't got...

alecpl

2008-06-07 b541216c53f8fd286ccb0e9e6172ffdcce8f2592

-added encoding detection for attachment names when message part hasn't got charset definition (#1484969)

 program/include/rcube_imap.php

@@ -1162,7 +1162,10 @@
      
    // normalize filename property
    if ($filename_mime = $struct->d_parameters['filename'] ? $struct->d_parameters['filename'] : $struct->ctype_parameters['name'])
      $struct->filename = rcube_imap::decode_mime_string($filename_mime, $this->default_charset);
    {
      $struct->filename = rcube_imap::decode_mime_string($filename_mime, 
            $struct->charset ? $struct->charset : rc_detect_encoding($filename_mime, $this->default_charset));
    }
    else if ($filename_encoded = $struct->d_parameters['filename*'] ? $struct->d_parameters['filename*'] : $struct->ctype_parameters['name*'])
    {
      // decode filename according to RFC 2231, Section 4
@@ -1170,7 +1173,8 @@
      $struct->filename = rcube_charset_convert(urldecode($filename_urlencoded), $filename_charset);
    }
    else if (!empty($struct->headers['content-description']))
      $struct->filename = rcube_imap::decode_mime_string($struct->headers['content-description'], $this->default_charset);
      $struct->filename = rcube_imap::decode_mime_string($struct->headers['content-description'],
            $struct->charset ? $struct->charset : rc_detect_encoding($struct->headers['content-description'],$this->default_charset));
      
    return $struct;
    }

 program/include/rcube_shared.inc

@@ -581,4 +581,33 @@
    return $mime_type;
}


/**
 * A method to guess encoding of a string.
 *
 * @param string $string         String.
 * @param string $failover     Default result for failover.
 *
 * @return string
 */
function rc_detect_encoding($string, $failover='')
{
    if (!function_exists('mb_detect_encoding')) {
        return $failover;
    }

    // FIXME: the order is important, because sometimes 
    // iso string is detected as euc-jp and etc.
    $enc = 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', 'EUC-JP', 'EUC-TW', 'KOI8-R'
    );

    $result = mb_detect_encoding($string, join(',', $enc));

    return $result ? $result : $failover;
}

?>