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use std::convert::TryInto;
use async_trait::async_trait;
use futures::TryFutureExt;
use tc_error::*;
use tc_transact::TxnId;
use tcgeneric::{NetworkTime, TCPathBuf};
use crate::gateway::Gateway;
use crate::scalar::{Link, Value};
pub type Actor = rjwt::Actor<Value>;
pub type Claims = rjwt::Claims<Link, Value, Vec<Scope>>;
pub type Scope = TCPathBuf;
pub type Token = rjwt::Token<Link, Value, Vec<Scope>>;
pub struct Request {
token: String,
claims: Claims,
txn_id: TxnId,
}
impl Request {
pub fn new(txn_id: TxnId, token: String, claims: Claims) -> Self {
Self {
token,
claims,
txn_id,
}
}
pub fn expires(&self) -> TCResult<NetworkTime> {
self.claims
.expires()
.try_into()
.map_err(|e| TCError::bad_request("invalid auth token expiry", e))
}
pub fn scopes(&self) -> &Claims {
&self.claims
}
pub fn token(&self) -> &str {
&self.token
}
pub fn txn_id(&self) -> &TxnId {
&self.txn_id
}
}
pub struct Resolver<'a> {
gateway: &'a Gateway,
host: &'a Link,
txn_id: &'a TxnId,
}
impl<'a> Resolver<'a> {
pub fn new(gateway: &'a Gateway, host: &'a Link, txn_id: &'a TxnId) -> Self {
Self {
gateway,
host,
txn_id,
}
}
}
#[async_trait]
impl<'a> rjwt::Resolve for Resolver<'a> {
type Host = Link;
type ActorId = Value;
type Claims = Vec<Scope>;
fn host(&self) -> Link {
self.host.clone()
}
async fn resolve(&self, host: &Link, actor_id: &Value) -> Result<Actor, rjwt::Error> {
let public_key: String = self
.gateway
.fetch(&self.txn_id, host, actor_id)
.map_err(|e| rjwt::Error::new(rjwt::ErrorKind::Fetch, e))
.await?;
let public_key = base64::decode(&public_key).map_err(|e| {
rjwt::Error::new(
rjwt::ErrorKind::Format,
format!("invalid public key {} for {}: {}", &public_key, actor_id, e),
)
})?;
Actor::with_public_key(actor_id.clone(), &public_key)
}
}