User-agent filtering block valid identifier containing the curl sub-string

[marius851000]

Current Behavior

It appears that crates.io blocks all request containing the "curl" substring, even with other identifier correctly set up, preventing reporting the user-agent of the tool used to fetch the data.

Example:

> curl https://crates.io/api/v1/crates/actix-http/3.11.0/download --user-agent "curl test (marius@mariusdavid.fr)"
{"errors":[{"detail":"We are unable to process your request at this time. This usually means that you are in violation of our API data access policy (https://crates.io/data-access). Please email help@crates.io and provide the request id e7b37e83-2065-0ae3-93c3-ae0a6043c4e9"}]}

> curl https://crates.io/api/v1/crates/actix-http/3.11.0/download --user-agent "curl/8.20.0 Nixpkgs/26.11"
{"errors":[{"detail":"We are unable to process your request at this time. This usually means that you are in violation of our API data access policy (https://crates.io/data-access). Please email help@crates.io and provide the request id def5bc50-f7c6-b8f0-a3a1-8ecc211729c1"}]}

Those two request appear to fullfill the requirement for identification as per the Data Access Policy https://crates.io/data-access

Expected Behavior

Fetching success, allowing me to properly compile my application via Nix, and, by extension, update my server.

Steps To Reproduce

No response

Environment

• OS: NixOS

Anything else?

No response

[mpleune-prattmiller]

This is a big issue for us, as it completely broke our nix build pipeline, which is using a very reasonable user-agent of curl/8.17.0 Nixpkgs/26.05.

[nim65s]

Fix merged in NixOS/nixpkgs#524985

Workaround is eg.

    cargoDeps = self.rustPlatform.importCargoLock {
      lockFile = "…/Cargo.lock";
      outputHashes = "…";
+     extraRegistries = { "https://github.com/rust-lang/crates.io-index" = "https://static.crates.io/crates"; };
    };

[LawnGnome]

Since this appears to have been addressed by NixOS/nixpkgs#524985, closing as expected behaviour on our side.