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derive.rs
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derive.rs
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//! Tests for custom derive support.
//!
//! # Debugging with `cargo expand`
//!
//! To expand the Rust code generated by the proc macro when debugging
//! issues related to these tests, run:
//!
//! $ cargo expand --test derive --all-features
#![cfg(feature = "derive")]
/// Custom derive test cases for the `Choice` macro.
mod choice {
/// `Choice` with `EXPLICIT` tagging.
mod explicit {
use der::{
asn1::{GeneralizedTime, UtcTime},
Choice, Decodable, Encodable, Encoder,
};
use hex_literal::hex;
use std::time::Duration;
/// Custom derive test case for the `Choice` macro.
///
/// Based on `Time` as defined in RFC 5280:
/// <https://tools.ietf.org/html/rfc5280#page-117>
///
/// ```text
/// Time ::= CHOICE {
/// utcTime UTCTime,
/// generalTime GeneralizedTime }
/// ```
#[derive(Choice)]
pub enum Time {
#[asn1(type = "UTCTime")]
UtcTime(UtcTime),
#[asn1(type = "GeneralizedTime")]
GeneralTime(GeneralizedTime),
}
impl Time {
fn to_unix_duration(self) -> Duration {
match self {
Time::UtcTime(t) => t.to_unix_duration(),
Time::GeneralTime(t) => t.to_unix_duration(),
}
}
}
const UTC_TIMESTAMP_DER: &'static [u8] =
&hex!("17 0d 39 31 30 35 30 36 32 33 34 35 34 30 5a");
const GENERAL_TIMESTAMP_DER: &'static [u8] =
&hex!("18 0f 31 39 39 31 30 35 30 36 32 33 34 35 34 30 5a");
#[test]
fn decode() {
let utc_time = Time::from_der(UTC_TIMESTAMP_DER).unwrap();
assert_eq!(utc_time.to_unix_duration().as_secs(), 673573540);
let general_time = Time::from_der(GENERAL_TIMESTAMP_DER).unwrap();
assert_eq!(general_time.to_unix_duration().as_secs(), 673573540);
}
#[test]
fn encode() {
let mut buf = [0u8; 128];
let utc_time = Time::from_der(UTC_TIMESTAMP_DER).unwrap();
let mut encoder = Encoder::new(&mut buf);
utc_time.encode(&mut encoder).unwrap();
assert_eq!(UTC_TIMESTAMP_DER, encoder.finish().unwrap());
let general_time = Time::from_der(GENERAL_TIMESTAMP_DER).unwrap();
let mut encoder = Encoder::new(&mut buf);
general_time.encode(&mut encoder).unwrap();
assert_eq!(GENERAL_TIMESTAMP_DER, encoder.finish().unwrap());
}
}
/// `Choice` with `IMPLICIT` tagging.
mod implicit {
use der::{
asn1::{BitString, GeneralizedTime},
Choice, Decodable, Encodable, Encoder,
};
use hex_literal::hex;
/// `Choice` macro test case for `IMPLICIT` tagging.
#[derive(Choice, Debug, Eq, PartialEq)]
#[asn1(tag_mode = "IMPLICIT")]
pub enum ImplicitChoice<'a> {
#[asn1(context_specific = "0", type = "BIT STRING")]
BitString(BitString<'a>),
#[asn1(context_specific = "1", type = "GeneralizedTime")]
Time(GeneralizedTime),
#[asn1(context_specific = "2", type = "UTF8String")]
Utf8String(String),
}
impl<'a> ImplicitChoice<'a> {
pub fn bit_string(&self) -> Option<BitString<'a>> {
match self {
Self::BitString(bs) => Some(*bs),
_ => None,
}
}
pub fn time(&self) -> Option<GeneralizedTime> {
match self {
Self::Time(time) => Some(*time),
_ => None,
}
}
}
const BITSTRING_DER: &'static [u8] = &hex!("80 04 00 01 02 03");
const TIME_DER: &'static [u8] = &hex!("81 0f 31 39 39 31 30 35 30 36 32 33 34 35 34 30 5a");
#[test]
fn decode() {
let cs_bit_string = ImplicitChoice::from_der(BITSTRING_DER).unwrap();
assert_eq!(
cs_bit_string.bit_string().unwrap().as_bytes().unwrap(),
&[1, 2, 3]
);
let cs_time = ImplicitChoice::from_der(TIME_DER).unwrap();
assert_eq!(
cs_time.time().unwrap().to_unix_duration().as_secs(),
673573540
);
}
#[test]
fn encode() {
let mut buf = [0u8; 128];
let cs_bit_string = ImplicitChoice::from_der(BITSTRING_DER).unwrap();
let mut encoder = Encoder::new(&mut buf);
cs_bit_string.encode(&mut encoder).unwrap();
assert_eq!(BITSTRING_DER, encoder.finish().unwrap());
let cs_time = ImplicitChoice::from_der(TIME_DER).unwrap();
let mut encoder = Encoder::new(&mut buf);
cs_time.encode(&mut encoder).unwrap();
assert_eq!(TIME_DER, encoder.finish().unwrap());
}
}
}
/// Custom derive test cases for the `Enumerated` macro.
mod enumerated {
use der::{Decodable, Encodable, Encoder, Enumerated};
use hex_literal::hex;
/// X.509 `CRLReason`.
#[derive(Enumerated, Copy, Clone, Debug, Eq, PartialEq)]
#[repr(u32)]
pub enum CrlReason {
Unspecified = 0,
KeyCompromise = 1,
CaCompromise = 2,
AffiliationChanged = 3,
Superseded = 4,
CessationOfOperation = 5,
CertificateHold = 6,
RemoveFromCrl = 8,
PrivilegeWithdrawn = 9,
AaCompromised = 10,
}
const UNSPECIFIED_DER: &[u8] = &hex!("0a 01 00");
const KEY_COMPROMISE_DER: &[u8] = &hex!("0a 01 01");
#[test]
fn decode() {
let unspecified = CrlReason::from_der(UNSPECIFIED_DER).unwrap();
assert_eq!(CrlReason::Unspecified, unspecified);
let key_compromise = CrlReason::from_der(KEY_COMPROMISE_DER).unwrap();
assert_eq!(CrlReason::KeyCompromise, key_compromise);
}
#[test]
fn encode() {
let mut buf = [0u8; 128];
let mut encoder = Encoder::new(&mut buf);
CrlReason::Unspecified.encode(&mut encoder).unwrap();
assert_eq!(UNSPECIFIED_DER, encoder.finish().unwrap());
let mut encoder = Encoder::new(&mut buf);
CrlReason::KeyCompromise.encode(&mut encoder).unwrap();
assert_eq!(KEY_COMPROMISE_DER, encoder.finish().unwrap());
}
}
/// Custom derive test cases for the `Sequence` macro.
mod sequence {
use der::{
asn1::{Any, ObjectIdentifier},
Decodable, Encodable, Sequence, ValueOrd,
};
use hex_literal::hex;
/// X.509 `AlgorithmIdentifier`
#[derive(Copy, Clone, Debug, Eq, PartialEq, Sequence, ValueOrd)]
pub struct AlgorithmIdentifier<'a> {
pub algorithm: ObjectIdentifier,
pub parameters: Option<Any<'a>>,
}
/// X.509 `SubjectPublicKeyInfo` (SPKI)
#[derive(Copy, Clone, Debug, Eq, PartialEq, Sequence, ValueOrd)]
pub struct SubjectPublicKeyInfo<'a> {
pub algorithm: AlgorithmIdentifier<'a>,
#[asn1(type = "BIT STRING")]
pub subject_public_key: &'a [u8],
}
/// X.509 extension
// TODO(tarcieri): tests for code derived with the `default` attribute
#[derive(Clone, Debug, Eq, PartialEq, Sequence, ValueOrd)]
pub struct Extension<'a> {
extn_id: ObjectIdentifier,
#[asn1(default = "critical_default")]
critical: bool,
#[asn1(type = "OCTET STRING")]
extn_value: &'a [u8],
}
/// Default value of the `critical` bit
fn critical_default() -> bool {
false
}
const ID_EC_PUBLIC_KEY_OID: ObjectIdentifier = ObjectIdentifier::new("1.2.840.10045.2.1");
const PRIME256V1_OID: ObjectIdentifier = ObjectIdentifier::new("1.2.840.10045.3.1.7");
const ALGORITHM_IDENTIFIER_DER: &[u8] =
&hex!("30 13 06 07 2a 86 48 ce 3d 02 01 06 08 2a 86 48 ce 3d 03 01 07");
#[test]
fn decode() {
let algorithm_identifier =
AlgorithmIdentifier::from_der(&ALGORITHM_IDENTIFIER_DER).unwrap();
assert_eq!(ID_EC_PUBLIC_KEY_OID, algorithm_identifier.algorithm);
assert_eq!(
PRIME256V1_OID,
ObjectIdentifier::try_from(algorithm_identifier.parameters.unwrap()).unwrap()
);
}
#[test]
fn encode() {
let parameters_oid = PRIME256V1_OID;
let algorithm_identifier = AlgorithmIdentifier {
algorithm: ID_EC_PUBLIC_KEY_OID,
parameters: Some(Any::from(¶meters_oid)),
};
assert_eq!(
ALGORITHM_IDENTIFIER_DER,
algorithm_identifier.to_vec().unwrap()
);
}
}