protected static function _fromDER($data, $critical)
{
$attribs = array_map(function (UnspecifiedType $el) {
return Attribute::fromASN1($el->asSequence());
}, Sequence::fromDER($data)->elements());
if (!count($attribs)) {
throw new \UnexpectedValueException("SubjectDirectoryAttributes must have at least one Attribute.");
}
return new self($critical, ...$attribs);
}
/**
* Initialize from ASN.1.
*
* @param Set $set
* @return self
*/
public static function fromASN1(Set $set)
{
$attribs = array_map(function (UnspecifiedType $el) {
return Attribute::fromASN1($el->asSequence());
}, $set->elements());
// cast attributes
$attribs = array_map(function (Attribute $attr) {
$oid = $attr->oid();
if (array_key_exists($oid, self::MAP_OID_TO_CLASS)) {
$cls = self::MAP_OID_TO_CLASS[$oid];
return $attr->castValues($cls);
}
return $attr;
}, $attribs);
return new self(...$attribs);
}
/**
* Get Attribute object with this as a single value.
*
* @return Attribute
*/
public function toAttribute()
{
return Attribute::fromAttributeValues($this);
}
/**
* Get self with extension request attribute.
*
* @param Extensions $extensions Extensions to request
* @return self
*/
public function withExtensionRequest(Extensions $extensions)
{
$obj = clone $this;
if (!isset($obj->_attributes)) {
$obj->_attributes = new Attributes();
}
$obj->_attributes = $obj->_attributes->withUnique(Attribute::fromAttributeValues(new ExtensionRequestValue($extensions)));
return $obj;
}
/**
* Get self with single unique attribute added.
*
* All previous attributes of the same type are removed.
*
* @param Attribute $attr
* @return self
*/
public function withUnique(Attribute $attr)
{
$obj = clone $this;
$obj->_attributes = array_filter($obj->_attributes, function (Attribute $a) use($attr) {
return $a->oid() != $attr->oid();
});
$obj->_attributes[] = $attr;
return $obj;
}
