| // This test attempts to verify that the set of 'native' |
| // certificates produced by this crate is roughly similar |
| // to the set of certificates in the mozilla root program |
| // as expressed by the `webpki-roots` crate. |
| // |
| // This is, obviously, quite a heuristic test. |
| |
| use std::collections::HashMap; |
| use ring::io::der; |
| use untrusted; |
| |
| fn stringify_x500name(subject: &[u8]) -> String { |
| let mut parts = vec![]; |
| let mut reader = untrusted::Reader::new(subject.into()); |
| |
| while !reader.at_end() { |
| let (tag, contents) = der::read_tag_and_get_value(&mut reader) |
| .unwrap(); |
| assert!(tag == 0x31); // sequence, constructed, context=1 |
| |
| let mut inner = untrusted::Reader::new(contents.into()); |
| let pair = der::expect_tag_and_get_value(&mut inner, der::Tag::Sequence) |
| .unwrap(); |
| |
| let mut pair = untrusted::Reader::new(pair.into()); |
| let oid = der::expect_tag_and_get_value(&mut pair, der::Tag::OID) |
| .unwrap(); |
| let (valuety, value) = der::read_tag_and_get_value(&mut pair) |
| .unwrap(); |
| |
| let name = match oid.as_slice_less_safe() { |
| &[0x55, 0x04, 0x03] => "CN", |
| &[0x55, 0x04, 0x05] => "serialNumber", |
| &[0x55, 0x04, 0x06] => "C", |
| &[0x55, 0x04, 0x07] => "L", |
| &[0x55, 0x04, 0x08] => "ST", |
| &[0x55, 0x04, 0x09] => "STREET", |
| &[0x55, 0x04, 0x0a] => "O", |
| &[0x55, 0x04, 0x0b] => "OU", |
| &[0x55, 0x04, 0x11] => "postalCode", |
| &[0x55, 0x04, 0x61] => "organizationIdentifier", |
| &[0x09, 0x92, 0x26, 0x89, 0x93, 0xf2, 0x2c, 0x64, 0x01, 0x19] => "domainComponent", |
| &[0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x01] => "emailAddress", |
| _ => panic!("unhandled x500 attr {:?}", oid) |
| }; |
| |
| let str_value = match valuety { |
| // PrintableString, UTF8String, TeletexString or IA5String |
| 0x0c | 0x13 | 0x14 | 0x16 => std::str::from_utf8(value.as_slice_less_safe()).unwrap(), |
| _ => panic!("unhandled x500 value type {:?}", valuety) |
| }; |
| |
| parts.push(format!("{}={}", name, str_value)); |
| } |
| |
| parts.join(", ") |
| } |
| |
| fn to_map<'a>(anchors: &'a [webpki::TrustAnchor<'a>]) -> HashMap<Vec<u8>, &'a webpki::TrustAnchor<'a>> { |
| let mut r = HashMap::new(); |
| |
| for anchor in anchors { |
| r.insert(anchor.spki.to_vec(), anchor); |
| } |
| |
| r |
| } |
| |
| #[test] |
| fn test_does_not_have_many_roots_unknown_by_mozilla() { |
| let native = rustls_native_certs::load_native_certs() |
| .unwrap(); |
| let mozilla = to_map(webpki_roots::TLS_SERVER_ROOTS.0); |
| |
| let mut missing_in_moz_roots = 0; |
| |
| for cert in &native.roots { |
| let cert = cert.to_trust_anchor(); |
| if let Some(moz) = mozilla.get(cert.spki) { |
| assert_eq!(cert.subject, moz.subject, |
| "subjects differ for public key"); |
| } else { |
| println!("Native anchor {:?} is missing from mozilla set", stringify_x500name(cert.subject)); |
| missing_in_moz_roots += 1; |
| } |
| } |
| |
| #[cfg(windows)] |
| let threshold = 1.6; // no more than 160% extra roots; windows CI vm has lots of extra roots |
| #[cfg(not(windows))] |
| let threshold = 0.5; // no more than 50% extra roots |
| let diff = (missing_in_moz_roots as f64) / (mozilla.len() as f64); |
| println!("mozilla: {:?}", mozilla.len()); |
| println!("native: {:?}", native.len()); |
| println!("{:?} anchors present in native set but not mozilla ({}%)", missing_in_moz_roots, diff * 100.); |
| assert!(diff < threshold, "too many unknown roots"); |
| } |
| |
| #[test] |
| fn test_contains_most_roots_known_by_mozilla() { |
| let native = rustls_native_certs::load_native_certs() |
| .unwrap(); |
| |
| let mut native_map = HashMap::new(); |
| for anchor in &native.roots { |
| native_map.insert(anchor.to_trust_anchor().spki.to_vec(), anchor); |
| } |
| |
| let mut missing_in_native_roots = 0; |
| let mozilla = webpki_roots::TLS_SERVER_ROOTS.0; |
| for cert in mozilla { |
| if native_map.get(cert.spki).is_none() { |
| println!("Mozilla anchor {:?} is missing from native set", stringify_x500name(cert.subject)); |
| missing_in_native_roots += 1; |
| } |
| } |
| |
| #[cfg(windows)] |
| let threshold = 0.95; // no more than 95% extra roots; windows misses *many* roots |
| #[cfg(not(windows))] |
| let threshold = 0.5; // no more than 50% extra roots |
| |
| let diff = (missing_in_native_roots as f64) / (mozilla.len() as f64); |
| println!("mozilla: {:?}", mozilla.len()); |
| println!("native: {:?}", native.len()); |
| println!("{:?} anchors present in mozilla set but not native ({}%)", |
| missing_in_native_roots, diff * 100.); |
| assert!(diff < threshold, "too many missing roots"); |
| } |
| |
| #[test] |
| fn util_list_certs() { |
| let native = rustls_native_certs::load_native_certs() |
| .unwrap(); |
| |
| for (i, cert) in native.roots.iter().enumerate() { |
| println!("cert[{}] = {}", i, stringify_x500name(cert.to_trust_anchor().subject)); |
| } |
| } |