imphnen-backend-service/imphnen-middleware-service/src/auth_middleware/mod.rs

use axum::{
	Extension, extract::Request, http::StatusCode, middleware::Next,
	response::Response,
};
use imphnen_iam_service::{UsersItemDtoRaw, UsersRepository};
use imphnen_libs::AppState;
use imphnen_utils::{common_response, extract_email};
use std::convert::Infallible;

pub async fn auth_middleware(
	Extension(state): Extension<AppState>,
	mut req: Request,
	next: Next,
) -> Result<Response, Infallible> {
	let headers = req.headers();
	let email = match extract_email(headers) {
		Some(email) => email,
		None => {
			return Ok(common_response(
				StatusCode::UNAUTHORIZED,
				"Invalid or expired token",
			));
		}
	};
	let repository = UsersRepository::new(&state);
	let user: Option<UsersItemDtoRaw> =
		match repository.query_user_by_email(email).await {
			Ok(user) => Some(user),
			Err(err) => {
				return Ok(common_response(
					StatusCode::INTERNAL_SERVER_ERROR,
					&err.to_string(),
				));
			}
		};
	if user.is_none() {
		return Ok(common_response(
			StatusCode::UNAUTHORIZED,
			"Unauthorized user",
		));
	}
	req.extensions_mut().insert(user.unwrap());
	Ok(next.run(req).await)
}