tower-proxy 0.9.0

Tower service for reverse proxy
Documentation 
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#![cfg_attr(
    not(any(feature = "https", feature = "nativetls", feature = "__rustls")),
    doc = "Includes helper functions to build [`Client`]s, and some re-exports from [`hyper_util::client::legacy`]."
)]
#![cfg_attr(
    all(
        any(feature = "https", feature = "nativetls"),
        not(feature = "__rustls")
    ),
    doc = "Includes helper functions to build [`Client`]s, and some re-exports from [`hyper_util::client::legacy`] or [`hyper_tls`]."
)]
#![cfg_attr(
    all(
        feature = "__rustls",
        not(any(feature = "https", feature = "nativetls"))
    ),
    doc = "Includes helper functions to build [`Client`]s, and some re-exports from [`hyper_util::client::legacy`] or [`hyper_rustls`]."
)]
#![cfg_attr(
    all(any(feature = "https", feature = "nativetls"), feature = "__rustls"),
    doc = "Includes helper functions to build [`Client`]s, and some re-exports from [`hyper_util::client::legacy`], [`hyper_tls`], or [`hyper_rustls`]."
)]
//!
use hyper::body::Body as HttpBody;
#[cfg(feature = "__rustls")]
#[cfg_attr(docsrs, doc(cfg(feature = "rustls")))]
pub use hyper_rustls::HttpsConnector as RustlsConnector;
#[cfg(feature = "https")]
#[cfg_attr(docsrs, doc(cfg(feature = "https")))]
pub use hyper_tls::HttpsConnector;
#[cfg(feature = "nativetls")]
#[cfg_attr(docsrs, doc(cfg(feature = "nativetls")))]
pub use hyper_tls::HttpsConnector as NativeTlsConnector;
use hyper_util::client::legacy::connect::Connect;
pub use hyper_util::client::legacy::connect::HttpConnector;
pub use hyper_util::client::legacy::{Builder, Client};

/// Default [`Builder`].
#[must_use]
pub fn builder() -> Builder {
    Builder::new(hyper_util::rt::TokioExecutor::new())
}

/// With the default [`hyper_util::client::legacy::connect::HttpConnector`].
#[must_use]
pub fn http_default<B>() -> Client<HttpConnector, B>
where
    B: HttpBody + Send,
    B::Data: Send,
{
    Builder::new(hyper_util::rt::TokioExecutor::new()).build_http()
}

/// Alias to [`nativetls_default()`].
#[cfg(any(feature = "https", feature = "nativetls"))]
#[cfg_attr(docsrs, doc(cfg(any(feature = "https", feature = "nativetls"))))]
#[inline]
#[must_use]
pub fn https_default<B>() -> Client<NativeTlsConnector<HttpConnector>, B>
where
    B: HttpBody + Send,
    B::Data: Send,
{
    nativetls_default()
}

/// With the default [`hyper_tls::HttpsConnector`].
#[cfg(feature = "nativetls")]
#[cfg_attr(docsrs, doc(cfg(feature = "nativetls")))]
#[must_use]
pub fn nativetls_default<B>() -> Client<NativeTlsConnector<HttpConnector>, B>
where
    B: HttpBody + Send,
    B::Data: Send,
{
    Builder::new(hyper_util::rt::TokioExecutor::new()).build(NativeTlsConnector::new())
}

/// With the default [`hyper_rustls::HttpsConnector`].
///
/// The config is determined as follows. I think the cert root is similar to the `reqwest` crate.
///
/// 1. Cert roots
///
/// - if the feature `rustls-webpki-roots` is enabled, then use
///   [`HttpsConnectorBuilder::with_webpki_roots()`](hyper_rustls::HttpsConnectorBuilder::with_webpki_roots());
/// - if `rustls-webpki-roots` is disabled and `rustls-native-roots` enabled, then
///   [`HttpsConnectorBuilder::with_native_roots()`](hyper_rustls::HttpsConnectorBuilder::with_native_roots());
/// - otherwise compilation fails.
///
/// The feature `rustls` is equivalent to `rustls-webpki-roots`.
///
/// 2. Scheme
///
/// HTTPS only.
///
/// 3. HTTP version
///
/// - if the feature `http1` is enabled, then call
///   [`HttpsConnectorBuilder::enable_http1()`](hyper_rustls::HttpsConnectorBuilder::enable_http1());
/// - if the feature `rustls-http2` is enabled, then call
///   [`HttpsConnectorBuilder::enable_http2()`](hyper_rustls::HttpsConnectorBuilder::enable_http2()).
///
/// This is not exclusive: if both features are enabled, then both methods are called.
///
#[cfg(feature = "__rustls")]
#[cfg_attr(docsrs, doc(cfg(feature = "rustls")))]
#[must_use]
pub fn rustls_default<B>() -> Client<RustlsConnector<HttpConnector>, B>
where
    B: HttpBody + Send,
    B::Data: Send,
{
    let conn = hyper_rustls::HttpsConnectorBuilder::new();
    #[cfg(all(
        any(feature = "rustls-ring", feature = "rustls-aws-lc"),
        feature = "rustls-webpki-roots"
    ))]
    let conn = conn.with_webpki_roots();
    #[cfg(all(
        any(feature = "rustls-ring", feature = "rustls-aws-lc"),
        all(not(feature = "rustls-webpki-roots"), feature = "rustls-native-roots")
    ))]
    let conn = conn
        .with_native_roots()
        .expect("no native root CA certificates found");
    #[cfg(all(
        any(feature = "rustls-ring", feature = "rustls-aws-lc"),
        any(feature = "rustls-webpki-roots", feature = "rustls-native-roots")
    ))]
    let conn = conn.https_only();
    #[cfg(feature = "http1")]
    let conn = conn.enable_http1();
    #[cfg(feature = "rustls-http2")]
    let conn = conn.enable_http2();
    Builder::new(hyper_util::rt::TokioExecutor::new()).build(conn.build())
}

/// Default builder and given connector.
pub fn with_connector_default<C, B>(conn: C) -> Client<C, B>
where
    C: Connect + Clone,
    B: HttpBody + Send,
    B::Data: Send,
{
    Builder::new(hyper_util::rt::TokioExecutor::new()).build(conn)
}