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package model.x501;
import model.asn1.ASN1Object;
import model.asn1.Encodable;
import model.asn1.Tag;
import model.asn1.exceptions.ParseException;
import model.asn1.parsing.BytesReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Represents an X.501 directory Name (a.k.a. RDNSequence).
* <pre>
* Name ::= CHOICE { -- only one possibility for now -- rdnSequence RDNSequence }
* RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
* DistinguishedName ::= RDNSequence
* </pre>
*/
public class Name extends ASN1Object {
private final RelativeDistinguishedName[] rdnSequence;
/**
* EFFECT: Initialize the Name with the given tags and rdnSequence. For tag and parentTag, consult
* {@link ASN1Object}.
* REQUIRES: Items should have SET tag.
*/
public Name(Tag tag, Tag parentTag, RelativeDistinguishedName[] rdnSequence) {
super(tag, parentTag);
this.rdnSequence = rdnSequence;
}
/**
* EFFECT: Parse the Name from input DER bytes. For details on parsing, refer to {@link ASN1Object}.
* Throws {@link ParseException} for invalid input.
* MODIFIES: this, encoded
*/
public Name(BytesReader encoded, boolean hasParentTag) throws ParseException {
super(encoded, hasParentTag);
final List<RelativeDistinguishedName> list = new ArrayList<>();
for (int i = 0; i < getLength();) {
int index = encoded.getIndex();
final RelativeDistinguishedName name = new RelativeDistinguishedName(encoded, false);
name.getTag().enforce(TAG_SET);
list.add(name);
index = encoded.getIndex() - index;
i += index;
}
this.rdnSequence = list.toArray(new RelativeDistinguishedName[0]);
}
/**
* EFFECTS: Encode the SEQUENCE OF into DER, keep order. RDNs will be encoded one-by-one.
*/
@Override
public Byte[] encodeValueDER() {
return Stream.of(rdnSequence)
.map(Encodable::encodeDER)
.flatMap(Arrays::stream)
.toArray(Byte[]::new);
}
/**
* EFFECT: Convert the name into directory string, like CN=yuuta,OU=users,DC=yuuta,DC=moe
*/
@Override
public String toString() {
return Stream.of(rdnSequence)
.map(RelativeDistinguishedName::toString)
.collect(Collectors.joining(","));
}
public RelativeDistinguishedName[] getRdnSequence() {
return rdnSequence;
}
}
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