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use axum::{
extract::{FromRequestParts, OptionalFromRequestParts, State},
http::request::Parts,
response::{IntoResponse, Response},
};
use super::IdentityCookie;
use crate::{
app::App,
clock::RequestedAt,
error::{Internal, Unauthorized},
token::{self, app::ValidateError},
user::User,
};
#[derive(Clone, Debug)]
pub struct Identity {
pub token: token::Id,
pub user: User,
}
impl FromRequestParts<App> for Identity {
type Rejection = LoginError<Internal>;
async fn from_request_parts(parts: &mut Parts, state: &App) -> Result<Self, Self::Rejection> {
let Ok(cookie) = IdentityCookie::from_request_parts(parts, state).await;
let RequestedAt(used_at) = RequestedAt::from_request_parts(parts, state).await?;
let secret = cookie.secret().ok_or(LoginError::Unauthorized)?;
let app = State::<App>::from_request_parts(parts, state).await?;
match app.tokens().validate(&secret, &used_at).await {
Ok((token, user)) => Ok(Identity { token, user }),
Err(ValidateError::InvalidToken) => Err(LoginError::Unauthorized),
Err(other) => Err(other.into()),
}
}
}
impl OptionalFromRequestParts<App> for Identity {
type Rejection = LoginError<Internal>;
async fn from_request_parts(
parts: &mut Parts,
state: &App,
) -> Result<Option<Self>, Self::Rejection> {
match <Self as FromRequestParts<App>>::from_request_parts(parts, state).await {
Ok(identity) => Ok(Some(identity)),
Err(LoginError::Unauthorized) => Ok(None),
Err(other) => Err(other),
}
}
}
pub enum LoginError<E> {
Failure(E),
Unauthorized,
}
impl<E> IntoResponse for LoginError<E>
where
E: IntoResponse,
{
fn into_response(self) -> Response {
match self {
Self::Unauthorized => Unauthorized.into_response(),
Self::Failure(e) => e.into_response(),
}
}
}
impl<E> From<E> for LoginError<Internal>
where
E: Into<Internal>,
{
fn from(err: E) -> Self {
Self::Failure(err.into())
}
}
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