The aws-lc-rs move left `ring` compiled in for one reason: ureq 2 names
`features = ["ring", ...]` inside its own `[dependencies.rustls]` block, and cargo
features are additive, so no dependent could switch it off. ureq 3 declares rustls
with `default-features = false` and selects no backend, which finally makes the
choice ours.
`cargo tree -i ring` is now empty for macOS, Windows and Linux. The one remaining
hit under `--target all` is quinn-proto's wasm-only dependency
(`cfg(all(target_family = "wasm", target_os = "unknown"))`), a target we never build.
⚠ The dependency must be spelled `features = ["rustls-no-provider",
"rustls-webpki-roots"]`. ureq 3's convenience `rustls` feature expands to include
`_ring` — the same shape of trap as rustls's own `features = ["ring"]`, and the
reason punktfunk-webos still carries both backends today.
Ported 9 files. The two pinning call sites (the desktop client's library fetch and
the tray's status poll) needed a custom ureq Connector, because ureq 3's `TlsConfig`
exposes roots/client-cert/off-switch but no hook for a custom ServerCertVerifier.
That glue lives once in punktfunk-core behind a new off-by-default `ureq-tls`
feature rather than being hand-rolled twice on a trust boundary; the Apple/Android
cdylib embedders do not enable it and pull no HTTP stack. The connector is modelled
on ureq's own crate-private RustlsConnector and is transport glue only.
Two behaviour changes worth noting, both improvements:
- Body caps are enforced by the reader, so an over-cap response is now an Err rather
than ureq 2's silent truncation — which used to surface as a signature failure
pointing at the wrong thing.
- A pin mismatch matches ureq 3's typed `Error::Rustls(..)` instead of sniffing a
substring out of a transport message, which could also fire on unrelated cert
errors.
Conditional requests are unchanged: 304 still arrives as Ok (only 4xx/5xx are Err),
which the existing `ureq_returns_304_as_ok` socket test still pins.
Also removed four now-dead `std::io::Read` imports. One of them (plugin_launch) is
still needed by its test module, so it moved there rather than being deleted: host
CI lints without `--all-targets`, so a top-level import used only under cfg(test)
fails the shipping build.
Verified on macOS: punktfunk-core (quic + ureq-tls) checks clean, pf-update-check
32/32, cargo fmt clean.
enricobuehler
3ccfd01699