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package model.pki.cert;
import model.asn1.ASN1Object;
import model.asn1.ASN1Time;
import model.asn1.GeneralizedTime;
import model.asn1.UtcTime;
import model.asn1.exceptions.ParseException;
import model.asn1.parsing.BytesReader;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Arrays;
import java.util.Collection;
import java.util.stream.Stream;
import static model.TestConstants.combine;
import static model.TestConstants.mutate;
import static org.junit.jupiter.api.Assertions.*;
public class ValidityTest {
private ZonedDateTime now;
@BeforeEach
void setup() {
now = ZonedDateTime.now(ZoneId.of("UTC")).withNano(0);
}
@Test
void testConstructor() {
final ASN1Time time = new GeneralizedTime(GeneralizedTime.TAG, null, now);
assertEquals(time.getTimestamp(), new Validity(ASN1Object.TAG_SEQUENCE, null, time, time)
.getNotBefore().getTimestamp());
assertEquals(time.getTimestamp(), new Validity(ASN1Object.TAG_SEQUENCE, null, time, time)
.getNotAfter().getTimestamp());
}
@Test
void testParse() throws ParseException {
final ASN1Time utc = new UtcTime(UtcTime.TAG, null, now);
final ASN1Time gen = new GeneralizedTime(GeneralizedTime.TAG, null, now);
final Byte[] utcBytes = utc.encodeDER();
final Byte[] genBytes = gen.encodeDER();
// UTC, Generalized
Validity parsed = new Validity(new BytesReader(combine((byte) ASN1Object.TAG_SEQUENCE.getNumber(), utcBytes,
genBytes)), false);
assertEquals(UtcTime.TAG.getNumber(), parsed.getNotBefore().getTag().getNumber());
assertEquals(now, parsed.getNotBefore().getTimestamp());
assertEquals(GeneralizedTime.TAG.getNumber(), parsed.getNotAfter().getTag().getNumber());
assertEquals(now, parsed.getNotAfter().getTimestamp());
// UTC, UTC
parsed = new Validity(new BytesReader(combine((byte) ASN1Object.TAG_SEQUENCE.getNumber(), utcBytes, utcBytes)),
false);
assertEquals(UtcTime.TAG.getNumber(), parsed.getNotBefore().getTag().getNumber());
assertEquals(now, parsed.getNotBefore().getTimestamp());
assertEquals(UtcTime.TAG.getNumber(), parsed.getNotAfter().getTag().getNumber());
assertEquals(now, parsed.getNotAfter().getTimestamp());
// Generalized, Generalized
parsed = new Validity(new BytesReader(combine((byte) ASN1Object.TAG_SEQUENCE.getNumber(), genBytes, genBytes)),
false);
assertEquals(GeneralizedTime.TAG.getNumber(), parsed.getNotBefore().getTag().getNumber());
assertEquals(now, parsed.getNotBefore().getTimestamp());
assertEquals(GeneralizedTime.TAG.getNumber(), parsed.getNotAfter().getTag().getNumber());
assertEquals(now, parsed.getNotAfter().getTimestamp());
// Generalized, UTC
parsed = new Validity(new BytesReader(combine((byte) ASN1Object.TAG_SEQUENCE.getNumber(), genBytes, utcBytes)),
false);
assertEquals(GeneralizedTime.TAG.getNumber(), parsed.getNotBefore().getTag().getNumber());
assertEquals(now, parsed.getNotBefore().getTimestamp());
assertEquals(UtcTime.TAG.getNumber(), parsed.getNotAfter().getTag().getNumber());
assertEquals(now, parsed.getNotAfter().getTimestamp());
}
@Test
void testParseFail() {
final ASN1Time utc = new UtcTime(UtcTime.TAG, null, now);
final Byte[] utcBytes = utc.encodeDER();
// Too short
assertThrows(ParseException.class, () ->
new Validity(new BytesReader(new Byte[]{
0x30, 0x0
}), false));
assertThrows(ParseException.class, () -> {
new Validity(new BytesReader(combine((byte) 0x30, utcBytes)), false);
});
// Illegal notBefore tag
assertThrows(ParseException.class, () -> {
new Validity(new BytesReader(mutate(combine((byte) 0x30, utcBytes, utcBytes), 2,
UtcTime.TAG.getNumber(), 0x2)), false);
});
// Illegal notAfter tag
assertThrows(ParseException.class, () -> {
new Validity(new BytesReader(mutate(combine((byte) 0x30, utcBytes, utcBytes), utcBytes.length + 2,
UtcTime.TAG.getNumber(), 0x2)), false);
});
}
@Test
void testEncode() {
final ASN1Time utc = new UtcTime(UtcTime.TAG, null, now);
final ASN1Time gen = new GeneralizedTime(GeneralizedTime.TAG, null, now);
final Byte[] utcBytes = utc.encodeDER();
final Byte[] genBytes = gen.encodeDER();
assertArrayEquals(Stream.of(Arrays.asList((byte) 0x30, (byte) (utcBytes.length + genBytes.length)),
Arrays.asList(utcBytes),
Arrays.asList(genBytes))
.flatMap(Collection::stream)
.toArray(Byte[]::new),
new Validity(ASN1Object.TAG_SEQUENCE, null, utc, gen)
.encodeDER());
}
}
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