rcube_mime_struct.php
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rcube_mime_struct.php
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	function getStructurePartType($structure, $part)
	{
	$part_a = self::getPartArray($structure, $part);
	if (!empty($part_a)) {
	if (is_array($part_a[0]))
	return 'multipart';
	else if ($part_a[0])
	return $part_a[0];
	}

	return 'other';
	}

	function getStructurePartEncoding($structure, $part)
	{
	$part_a = self::getPartArray($structure, $part);
	if ($part_a) {
	if (!is_array($part_a[0]))
	return $part_a[5];
	}

	return '';
	}

	function getStructurePartCharset($structure, $part)
	{
	$part_a = self::getPartArray($structure, $part);
	if ($part_a) {
	if (is_array($part_a[0]))
	return '';
	else {
	if (is_array($part_a[2])) {
	$name = '';
	while (list($key, $val) = each($part_a[2]))
	if (strcasecmp($val, 'charset') == 0)
	return $part_a[2][$key+1];
	}
	}
	}

	return '';
	}

	function getStructurePartArray($a, $part)
	{
	if (!is_array($a)) {
	return false;
	}
	if (strpos($part, '.') > 0) {
	$original_part = $part;
	$pos = strpos($part, '.');
	$rest = substr($original_part, $pos+1);
	$part = substr($original_part, 0, $pos);
	if ((strcasecmp($a[0], 'message') == 0) && (strcasecmp($a[1], 'rfc822') == 0)) {
	$a = $a[8];
	}
	return self::getPartArray($a[$part-1], $rest);
	}
	else if ($part>0) {
	if (!is_array($a[0]) && (strcasecmp($a[0], 'message') == 0)
	&& (strcasecmp($a[1], 'rfc822') == 0)) {
	$a = $a[8];
	}
	if (is_array($a[$part-1]))
	return $a[$part-1];
	else
	return $a;
	}
	else if (($part == 0) \|\| (empty($part))) {
	return $a;
	}
	}