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mirror of https://github.com/actix/actix-extras.git synced 2025-03-27 23:04:02 +01:00
2021-08-30 23:27:44 +01:00

102 lines
2.6 KiB
Rust

use std::fmt;
use actix_web::error::ParseError;
use actix_web::http::header::{Header, HeaderName, HeaderValue, IntoHeaderValue, AUTHORIZATION};
use actix_web::HttpMessage;
use crate::headers::authorization::scheme::Scheme;
/// `Authorization` header, defined in [RFC 7235](https://tools.ietf.org/html/rfc7235#section-4.2)
///
/// The "Authorization" header field allows a user agent to authenticate
/// itself with an origin server -- usually, but not necessarily, after
/// receiving a 401 (Unauthorized) response. Its value consists of
/// credentials containing the authentication information of the user
/// agent for the realm of the resource being requested.
///
/// `Authorization` header is generic over [authentication
/// scheme](./trait.Scheme.html).
///
/// # Example
///
/// ```
/// # use actix_web::http::header::Header;
/// # use actix_web::{HttpRequest, Result};
/// # use actix_web_httpauth::headers::authorization::{Authorization, Basic};
/// fn handler(req: HttpRequest) -> Result<String> {
/// let auth = Authorization::<Basic>::parse(&req)?;
///
/// Ok(format!("Hello, {}!", auth.as_ref().user_id()))
/// }
/// ```
#[derive(Eq, PartialEq, Ord, PartialOrd, Hash, Debug, Default, Clone)]
pub struct Authorization<S: Scheme>(S);
impl<S> Authorization<S>
where
S: Scheme,
{
/// Consumes `Authorization` header and returns inner [`Scheme`]
/// implementation.
///
/// [`Scheme`]: ./trait.Scheme.html
pub fn into_scheme(self) -> S {
self.0
}
}
impl<S> From<S> for Authorization<S>
where
S: Scheme,
{
fn from(scheme: S) -> Authorization<S> {
Authorization(scheme)
}
}
impl<S> AsRef<S> for Authorization<S>
where
S: Scheme,
{
fn as_ref(&self) -> &S {
&self.0
}
}
impl<S> AsMut<S> for Authorization<S>
where
S: Scheme,
{
fn as_mut(&mut self) -> &mut S {
&mut self.0
}
}
impl<S: Scheme> Header for Authorization<S> {
#[inline]
fn name() -> HeaderName {
AUTHORIZATION
}
fn parse<T: HttpMessage>(msg: &T) -> Result<Self, ParseError> {
let header = msg.headers().get(AUTHORIZATION).ok_or(ParseError::Header)?;
let scheme = S::parse(header).map_err(|_| ParseError::Header)?;
Ok(Authorization(scheme))
}
}
impl<S: Scheme> IntoHeaderValue for Authorization<S> {
type Error = <S as IntoHeaderValue>::Error;
fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
self.0.try_into_value()
}
}
impl<S: Scheme> fmt::Display for Authorization<S> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(&self.0, f)
}
}