brewlog/src/server/auth.rs
copilot-swe-agent[bot] 6d0ee869f7
feat(api): add authentication middleware and token management routes
Co-authored-by: jnsgruk <668505+jnsgruk@users.noreply.github.com>
2025-11-25 16:28:10 +00:00

98 lines
2.9 KiB
Rust

use axum::{
async_trait,
extract::{FromRequestParts, Request, State},
http::{StatusCode, header, request::Parts},
middleware::Next,
response::{IntoResponse, Response},
};
use crate::domain::users::User;
use crate::infrastructure::auth::hash_token;
use crate::server::server::AppState;
/// Extension type to carry authenticated user through request handlers
#[derive(Clone)]
pub struct AuthenticatedUser(pub User);
#[async_trait]
impl<S> FromRequestParts<S> for AuthenticatedUser
where
S: Send + Sync,
{
type Rejection = StatusCode;
async fn from_request_parts(parts: &mut Parts, _state: &S) -> Result<Self, Self::Rejection> {
parts
.extensions
.get::<AuthenticatedUser>()
.cloned()
.ok_or(StatusCode::UNAUTHORIZED)
}
}
/// Middleware that optionally extracts authentication from the request
/// Sets AuthenticatedUser extension if valid token is found
pub async fn optional_auth_middleware(
State(state): State<AppState>,
mut request: Request,
next: Next,
) -> Response {
if let Some(user) = extract_user_from_request(&state, &request).await {
request.extensions_mut().insert(AuthenticatedUser(user));
}
next.run(request).await
}
/// Middleware that requires authentication
/// Returns 401 if no valid token is found
pub async fn require_auth_middleware(
State(state): State<AppState>,
mut request: Request,
next: Next,
) -> Response {
match extract_user_from_request(&state, &request).await {
Some(user) => {
request.extensions_mut().insert(AuthenticatedUser(user));
next.run(request).await
}
None => StatusCode::UNAUTHORIZED.into_response(),
}
}
async fn extract_user_from_request(state: &AppState, request: &Request) -> Option<User> {
// Extract token from Authorization header
let auth_header = request.headers().get(header::AUTHORIZATION)?;
let auth_str = auth_header.to_str().ok()?;
// Check for "Bearer <token>" format
let token = auth_str.strip_prefix("Bearer ")?;
// Hash the token to look it up in the database
let token_hash = hash_token(token);
// Look up the token
let token_record = state.token_repo.get_by_token_hash(&token_hash).await.ok()?;
// Check if token is revoked
if token_record.is_revoked() {
return None;
}
// Update last used timestamp (fire and forget - don't block on this)
let token_repo = state.token_repo.clone();
let token_id = token_record.id.clone();
tokio::spawn(async move {
let _ = token_repo.update_last_used(token_id).await;
});
// Get the user
state.user_repo.get(token_record.user_id).await.ok()
}
/// Helper to extract authenticated user from request extensions
pub fn get_authenticated_user(request: &Request) -> Option<&User> {
request
.extensions()
.get::<AuthenticatedUser>()
.map(|auth| &auth.0)
}