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actix-web/actix-http/src/lib.rs
2021-12-05 21:26:31 +00:00

111 lines
3.2 KiB
Rust

//! HTTP primitives for the Actix ecosystem.
//!
//! ## Crate Features
//! | Feature | Functionality |
//! | ------------------- | ------------------------------------------- |
//! | `openssl` | TLS support via [OpenSSL]. |
//! | `rustls` | TLS support via [rustls]. |
//! | `compress-brotli` | Payload compression support: Brotli. |
//! | `compress-gzip` | Payload compression support: Deflate, Gzip. |
//! | `compress-zstd` | Payload compression support: Zstd. |
//! | `trust-dns` | Use [trust-dns] as the client DNS resolver. |
//!
//! [OpenSSL]: https://crates.io/crates/openssl
//! [rustls]: https://crates.io/crates/rustls
//! [trust-dns]: https://crates.io/crates/trust-dns
#![deny(rust_2018_idioms, nonstandard_style, clippy::uninit_assumed_init)]
#![allow(
clippy::type_complexity,
clippy::too_many_arguments,
clippy::new_without_default,
clippy::borrow_interior_mutable_const
)]
#![doc(html_logo_url = "https://actix.rs/img/logo.png")]
#![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
#[macro_use]
extern crate log;
pub mod body;
mod builder;
mod config;
#[cfg(feature = "__compress")]
pub mod encoding;
mod extensions;
pub mod header;
mod helpers;
mod http_message;
mod message;
mod payload;
mod request;
mod response;
mod response_builder;
mod service;
pub mod error;
pub mod h1;
pub mod h2;
pub mod test;
pub mod ws;
pub use self::builder::HttpServiceBuilder;
pub use self::config::{KeepAlive, ServiceConfig};
pub use self::error::Error;
pub use self::extensions::{CloneableExtensions, Extensions};
pub use self::header::ContentEncoding;
pub use self::http_message::HttpMessage;
pub use self::message::ConnectionType;
pub use self::message::{Message, RequestHead, RequestHeadType, ResponseHead};
pub use self::payload::{Payload, PayloadStream};
pub use self::request::Request;
pub use self::response::Response;
pub use self::response_builder::ResponseBuilder;
pub use self::service::HttpService;
pub use ::http::{uri, uri::Uri};
pub use ::http::{Method, StatusCode, Version};
/// A major HTTP protocol version.
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
#[non_exhaustive]
pub enum Protocol {
Http1,
Http2,
Http3,
}
type ConnectCallback<IO> = dyn Fn(&IO, &mut CloneableExtensions);
/// Container for data that extract with ConnectCallback.
///
/// # Implementation Details
/// Uses Option to reduce necessary allocations when merging with request extensions.
#[derive(Default)]
pub(crate) struct OnConnectData(Option<CloneableExtensions>);
impl OnConnectData {
/// Construct by calling the on-connect callback with the underlying transport I/O.
pub(crate) fn from_io<T>(
io: &T,
on_connect_ext: Option<&ConnectCallback<T>>,
) -> Self {
let ext = on_connect_ext.map(|handler| {
let mut extensions = CloneableExtensions::default();
handler(io, &mut extensions);
extensions
});
Self(ext)
}
/// Merge self into given request's extensions.
#[inline]
pub(crate) fn merge_into(&mut self, req: &mut Request) {
if let Some(ref ext) = self.0 {
req.head.extensions.get_mut().clone_from(ext);
}
}
}