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package model.csr;
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.Stream;
/**
* Represents a CSR attribute values list.
* <pre>
* Attribute { ATTRIBUTE:IOSet } ::= SEQUENCE {
* type ATTRIBUTE.&id({IOSet}),
* values SET SIZE(1..MAX) OF ATTRIBUTE.&Type({IOSet}{@type})
* }
* </pre>
* Values can be none or any length. Parsing and decoding the values are handled in specific types.
*/
public class Values extends ASN1Object {
private final ASN1Object[] array;
/**
* EFFECT: Initialize the list with the given tag, parentTag, and array. For tag and parentTag, consult
* {@link ASN1Object}.
* REQUIRES: All elements in the array shall be the same ASN.1 type.
*/
public Values(Tag tag, Tag parentTag, ASN1Object[] array) {
super(tag, parentTag);
this.array = array;
}
/**
* EFFECT: Parse the list from input DER bytes. For details on parsing, refer to {@link ASN1Object}.
* Throws {@link ParseException} for invalid input.
* MODIFIES: this, encoded
*/
public Values(BytesReader encoded, boolean hasParentTag) throws ParseException {
super(encoded, hasParentTag);
final List<ASN1Object> list = new ArrayList<>();
for (int i = 0; i < getLength();) {
int index = encoded.getIndex();
final ASN1Object value = ASN1Object.parse(encoded, false);
list.add(value);
index = encoded.getIndex() - index;
i += index;
}
this.array = list.toArray(new ASN1Object[0]);
}
/**
* EFFECTS: Encode the SET OF into DER, keep order. Values will be encoded one-by-one.
*/
@Override
public Byte[] encodeValueDER() {
return Stream.of(array)
.map(Encodable::encodeDER)
.flatMap(Arrays::stream)
.toArray(Byte[]::new);
}
public ASN1Object[] getArray() {
return array;
}
}
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