/**
* convert charset (and return charset)
*
* @param Zend_Mime_Part $_part
* @param string $charset
* @return string
*/
protected static function _appendCharsetFilter(Zend_Mime_Part $_part, $charset)
{
if ($charset == 'utf8') {
$charset = 'utf-8';
} else {
if ($charset == 'us-ascii') {
// us-ascii caused problems with iconv encoding to utf-8
$charset = self::DEFAULT_FALLBACK_CHARSET;
} else {
if (strpos($charset, '.') !== false) {
// the stream filter does not like charsets with a dot in its name
// stream_filter_append(): unable to create or locate filter "convert.iconv.ansi_x3.4-1968/utf-8//IGNORE"
$charset = self::DEFAULT_FALLBACK_CHARSET;
} else {
if (iconv($charset, 'utf-8', '') === false) {
// check if charset is supported by iconv
$charset = self::DEFAULT_FALLBACK_CHARSET;
}
}
}
}
$_part->appendDecodeFilter(self::_getDecodeFilter($charset));
return $charset;
}
/**
* convert charset (and return charset)
*
* @param Zend_Mime_Part $_part
* @param array $_structure
* @param string $_contentType
* @return string
*/
protected function _appendCharsetFilter(Zend_Mime_Part $_part, $_structure)
{
if (Tinebase_Core::isLogLevel(Zend_Log::TRACE)) {
Tinebase_Core::getLogger()->trace(__METHOD__ . '::' . __LINE__ . ' ' . print_r($_structure, TRUE));
}
$charset = isset($_structure['parameters']['charset']) ? $_structure['parameters']['charset'] : self::DEFAULT_FALLBACK_CHARSET;
if ($charset == 'utf8') {
$charset = 'utf-8';
} else {
if ($charset == 'us-ascii' || stripos($charset, 'iso646') !== FALSE) {
// us-ascii caused problems with iconv encoding to utf-8
$charset = self::DEFAULT_FALLBACK_CHARSET;
} else {
if (strpos($charset, '.') !== false) {
// the stream filter does not like charsets with a dot in its name
// stream_filter_append(): unable to create or locate filter "convert.iconv.ansi_x3.4-1968/utf-8//IGNORE"
$charset = self::DEFAULT_FALLBACK_CHARSET;
} else {
if (iconv($charset, 'utf-8', '') === false) {
// check if charset is supported by iconv
$charset = self::DEFAULT_FALLBACK_CHARSET;
}
}
}
}
$_part->appendDecodeFilter($this->_getDecodeFilter($charset));
return $charset;
}
