token: test that permissions iteration order is consistent

This commit is contained in:
Cole Helbling 2024-05-25 11:13:37 -07:00
parent 4dbdbee457
commit f18f581188

View file

@ -21,6 +21,8 @@ fn test_basic() {
"exp": 4102324986,
"https://jwt.attic.rs/v1": {
"caches": {
"all-*": {"r":1},
"all-ci-*": {"w":1},
"cache-rw": {"r":1,"w":1},
"cache-ro": {"r":1},
"team-*": {"r":1,"w":1,"cc":1}
@ -29,7 +31,29 @@ fn test_basic() {
}
*/
let token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJtZW93IiwiZXhwIjo0MTAyMzI0OTg2LCJodHRwczovL2p3dC5hdHRpYy5ycy92MSI6eyJjYWNoZXMiOnsiY2FjaGUtcnciOnsiciI6MSwidyI6MX0sImNhY2hlLXJvIjp7InIiOjF9LCJ0ZWFtLSoiOnsiciI6MSwidyI6MSwiY2MiOjF9fX19.UlsIM9bQHr9SXGAcSQcoVPo9No8Zhh6Y5xfX8vCmKmA";
let token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjQxMDIzMjQ5ODYsImh0dHBzOi8vand0LmF0dGljLnJzL3YxIjp7ImNhY2hlcyI6eyJhbGwtKiI6eyJyIjoxfSwiYWxsLWNpLSoiOnsidyI6MX0sImNhY2hlLXJvIjp7InIiOjF9LCJjYWNoZS1ydyI6eyJyIjoxLCJ3IjoxfSwidGVhbS0qIjp7ImNjIjoxLCJyIjoxLCJ3IjoxfX19LCJpYXQiOjE3MTY2NjA1ODksInN1YiI6Im1lb3cifQ.8vtxp_1OEYdcnkGPM4c9ORXooJZV7DOTS4NRkMKN8mw";
// NOTE(cole-h): check that we get a consistent iteration order when getting permissions for
// caches -- this depends on the order of the fields in the token, but should otherwise be
// consistent between iterations
let mut was_ever_wrong = false;
for _ in 0..=1_000 {
// NOTE(cole-h): we construct a new Token every iteration in order to get different "random
// state"
let decoded = Token::from_jwt(token, &dec_key).unwrap();
let perm_all_ci = decoded.get_permission_for_cache(&cache! { "all-ci-abc" });
// NOTE(cole-h): if the iteration order of the token is inconsistent, the permissions may be
// retrieved from the `all-ci-*` pattern (which only allows writing/pushing), even though
// the `all-*` pattern (which only allows reading/pulling) is specified first
if perm_all_ci.require_pull().is_err() || perm_all_ci.require_push().is_ok() {
was_ever_wrong = true;
}
}
assert!(
!was_ever_wrong,
"Iteration order should be consistent to prevent random auth failures (and successes)"
);
let decoded = Token::from_jwt(token, &dec_key).unwrap();