use crate::{config, AuthResult};
use jsonwebtoken::{decode, encode, get_current_timestamp, DecodingKey, EncodingKey, Header, TokenData, Validation};
use serde::{Deserialize, Serialize};
use serde_json::Value;
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct UserClaims {
uid: String,
exp: usize,
claims: Option<Value>,
}
#[derive(Debug)]
pub struct Jwt {
config: config::Jwt,
}
impl Jwt {
pub fn new(config: config::Jwt) -> Self {
Self { config }
}
pub fn token(&self, uid: String, claims: Option<Value>) -> AuthResult<String> {
let exp = (get_current_timestamp() + self.config.expiration) as usize;
let claims = UserClaims { uid, exp, claims };
let token = encode(
&Header::new(self.config.algorithm),
&claims,
&EncodingKey::from_base64_secret(&self.config.secret)?,
)?;
Ok(token)
}
pub fn validate(&self, token: &str) -> AuthResult<TokenData<UserClaims>> {
let mut validate = Validation::new(self.config.algorithm);
validate.leeway = 0;
Ok(decode::<UserClaims>(
token,
&DecodingKey::from_base64_secret(&self.config.secret)?,
&validate,
)?)
}
}