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use std::time::{SystemTime, UNIX_EPOCH};
use axum::extract::{Json, State};
use axum::response::IntoResponse;
use jsonwebtoken::{encode, Header};
use serde::{Deserialize, Serialize};
use crate::AppState;
use crate::auth::{check_password};
use super::errors::RouteError;
#[derive(Deserialize)]
pub struct LoginRequest {
email: String,
password: String,
}
#[derive(Serialize)]
struct LoginResponse {
token: String,
}
#[derive(Serialize)]
struct JWTClaims {
sub: String,
exp: usize,
iat: usize,
is_admin: bool,
}
pub async fn login(
State(state): State<AppState>,
Json(request): Json<LoginRequest>
) -> Result<impl IntoResponse, RouteError> {
let user = match state.database.fetch_user_by_email(&request.email) {
Err(_) => return Err(RouteError::Internal("database action failed".into())),
Ok(None) => return Err(RouteError::UnregisteredEmail(request.email)),
Ok(Some(user)) => user
};
match check_password(&request.password, user.password_hash()) {
Err(_) => return Err(RouteError::Internal("failed to check password".into())),
Ok(false) => return Err(RouteError::AuthorizationFailure()),
Ok(true) => {},
}
let now = SystemTime::now()
.duration_since(UNIX_EPOCH)
.map_err(|_| RouteError::Internal("failed to access system clock".into()))?
.as_secs() as usize;
let claims = JWTClaims {
sub: user.email().to_owned(),
iat: now,
exp: now + 60 * 60 * 24,
is_admin: false
};
let token= encode(&Header::default(), &claims, &state.api_key)
.map_err(|_| RouteError::Internal("failed to encode jwt".into()))?;
Ok(Json(LoginResponse { token }))
}
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