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Clean up tls-related feature flags

Browse source 
This provides a clear and consistent interface for selecting TLS-related
features on both (xmpp and tokio-xmpp) crates. All feature checks have
been revamped. All working combinations have been tested (including a
connectivity test + --all-features docs build) using:

```
set -xeuo pipefail
features=(aws_lc_rs ring ktls,aws_lc_rs ktls,ring aws_lc_rs,ring aws_lc_rs,ring,ktls native-tls rustls-any-backend)
export RUSTFLAGS=" -D warnings"
cargo test --no-default-features
cargo test
for feature in ${features[@]}; do
  echo ">>> BUILDING with $feature" 2>&1
  # Running code or building examples cannot succeed with rustls-any-backend.
  features="starttls,$feature"
  if [ "$feature" != 'rustls-any-backend' ]; then
    if ! cargo test --no-default-features --features="$features"; then
      echo ">>> BUILD FAILED for tls feature set: $features" >&2
      exit 1
    fi
    set +e
    timeout -sINT -p -k 2 3 cargo run --no-default-features --features="$features" --example keep_connection -- test@hub.sotecware.net "$(pass xmpp/test@hub.sotecware.net)"
    status="$?"
    set -e
    if [ $status -ne 0 ]; then
      echo ">>> keep_connection did not shut down cleanly! (status: $status)" >&2
      exit 1
    fi
  else
    if ! cargo build --no-default-features --features="$feature"; then
      echo ">>> BUILD FAILED for tls feature set: $features" >&2
      exit 1
    fi
  fi
done
RUSTDOCFLAGS="--cfg docsrs" RUSTFLAGS="--cfg xmpprs_doc_build" cargo +nightly doc -Zrustdoc-map --all-features
```
This commit is contained in:
Jonas Schäfer 2025-05-10 10:45:43 +02:00
commit fc8b581593
15 changed files with 273 additions and 135 deletions
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19
xmpp/examples/hello_bot.rs
View file

@ -4,10 +4,7 @@
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#[cfg(all(
feature = "starttls-rust",
any(feature = "starttls-rust-aws_lc_rs", feature = "starttls-rust-ring")
))]
#[cfg(feature = "rustls-any-backend")]
use xmpp::tokio_xmpp::rustls;
use xmpp::{
jid::BareJid,
@ -20,20 +17,22 @@ use tokio::signal::ctrl_c;
use std::env::args;
use std::str::FromStr;
#[cfg(all(
feature = "rustls-any-backend",
not(any(feature = "aws_lc_rs", feature = "ring"))
))]
compile_error!("using rustls (e.g. via the ktls feature) needs an enabled rustls backend feature (either aws_lc_rs or ring).");
#[tokio::main]
async fn main() -> Result<(), Option<()>> {
env_logger::init();
#[cfg(all(feature = "starttls-rust", feature = "starttls-rust-aws_lc_rs"))]
#[cfg(all(feature = "aws_lc_rs", not(feature = "ring")))]
rustls::crypto::aws_lc_rs::default_provider()
.install_default()
.expect("failed to install rustls crypto provider");
#[cfg(all(
feature = "starttls-rust",
feature = "starttls-rust-ring",
not(feature = "starttls-rust-aws_lc_rs")
))]
#[cfg(all(feature = "ring"))]
rustls::crypto::ring::default_provider()
.install_default()
.expect("failed to install rustls crypto provider");