cyper_core/
backend.rs

1#[cfg(any(feature = "native-tls", feature = "rustls"))]
2use {compio::tls::TlsConnector, std::io};
3
4/// Represents TLS backend options
5#[derive(Debug, Clone)]
6pub enum TlsBackend {
7    /// Don't use TLS backend.
8    None,
9    /// Use [`native_tls`] as TLS backend.
10    #[cfg(feature = "native-tls")]
11    NativeTls,
12    /// Use [`rustls`] as TLS backend.
13    #[cfg(feature = "rustls")]
14    Rustls(std::sync::Arc<compio::tls::rustls::ClientConfig>),
15}
16
17impl Default for TlsBackend {
18    fn default() -> Self {
19        cfg_if::cfg_if! {
20            if #[cfg(feature = "native-tls")] {
21                Self::NativeTls
22            } else if #[cfg(feature = "rustls")] {
23                Self::default_rustls()
24            } else {
25                Self::None
26            }
27        }
28    }
29}
30
31impl TlsBackend {
32    /// Create [`TlsBackend`] with default rustls client config.
33    #[cfg(feature = "rustls")]
34    pub fn default_rustls() -> Self {
35        use std::sync::Arc;
36
37        use compio::rustls::ClientConfig;
38        use rustls_platform_verifier::ConfigVerifierExt;
39
40        let mut config = ClientConfig::with_platform_verifier();
41        config.alpn_protocols = if cfg!(feature = "http2") {
42            vec![b"h2".into(), b"http/1.1".into()]
43        } else {
44            vec![b"http/1.1".into()]
45        };
46        config.key_log = Arc::new(compio::rustls::KeyLogFile::new());
47        Self::Rustls(Arc::new(config))
48    }
49
50    #[cfg(any(feature = "native-tls", feature = "rustls"))]
51    pub(crate) fn create_connector(&self) -> io::Result<TlsConnector> {
52        match self {
53            Self::None => Err(io::Error::new(
54                io::ErrorKind::Other,
55                "could not create TLS connector without TLS backend",
56            )),
57            #[cfg(feature = "native-tls")]
58            Self::NativeTls => Ok(TlsConnector::from(
59                compio::tls::native_tls::TlsConnector::builder()
60                    .request_alpns(if cfg!(feature = "http2") {
61                        &["h2", "http/1.1"]
62                    } else {
63                        &["http/1.1"]
64                    })
65                    .build()
66                    .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?,
67            )),
68            #[cfg(feature = "rustls")]
69            Self::Rustls(config) => Ok(TlsConnector::from(config.clone())),
70        }
71    }
72}
cyper_core/backend.rs

cyper_core/
backend.rs
