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#[macro_use]
extern crate rocket;
use chrono::{DateTime, Utc};
use rocket::fs::FileServer;
use rocket::http::uri::Reference;
use rocket::http::{Cookie, CookieJar, Status};
use rocket::outcome::Outcome;
use rocket::request::{self, FromRequest};
use rocket::response::Redirect;
use rocket::Request;
use serde::{Deserialize, Serialize};
use std::result::Result;
use openidconnect::core::{
CoreAuthenticationFlow, CoreClient, CoreProviderMetadata, CoreResponseType, CoreUserInfoClaims,
};
use openidconnect::reqwest::async_http_client;
use openidconnect::url::Url;
use openidconnect::{
AccessTokenHash, AuthenticationFlow, AuthorizationCode, ClientId, ClientSecret, CsrfToken,
IssuerUrl, Nonce, OAuth2TokenResponse, PkceCodeChallenge, RedirectUrl, Scope, TokenResponse,
};
const USER_COOKIE: &'static str = "user";
#[derive(Serialize, Deserialize)]
struct UserCookie {
access_token: openidconnect::AccessToken,
expiration: DateTime<Utc>,
refresh_token: openidconnect::RefreshToken,
}
struct User {}
impl User {
async fn from_request_helper(req: &Request<'_>) -> Result<User, anyhow::Error> {
let cookie = req
.cookies()
.get_private(USER_COOKIE)
.ok_or(anyhow::anyhow!("no cookie"))?;
let user_cookie: UserCookie = serde_json::from_str(cookie.value())?;
let client = keycloak_client().await;
let token = client
.exchange_refresh_token(&user_cookie.refresh_token)
.request_async(async_http_client)
.await?;
let user_info: CoreUserInfoClaims = client
.user_info(token.access_token().clone(), None)?
.request_async(async_http_client)
.await?;
log::info!("Got user_info: {:?}", user_info);
Ok(User {})
}
}
#[rocket::async_trait]
impl<'r> FromRequest<'r> for User {
type Error = anyhow::Error;
async fn from_request(req: &'r Request<'_>) -> request::Outcome<Self, Self::Error> {
match User::from_request_helper(req).await {
Ok(user) => Outcome::Success(User {}),
Err(error) => Outcome::Failure((Status::Forbidden, error)),
}
}
}
#[get("/")]
fn index(user: Option<User>) -> String {
match user {
None => "Not logged in".to_string(),
Some(user) => "Logged in".to_string(),
}
}
async fn keycloak_client() -> CoreClient {
// // Use OpenID Connect Discovery to fetch the provider metadata.
let provider_metadata = CoreProviderMetadata::discover_async(
IssuerUrl::new("https://auth.orbekk.com/realms/test".to_string()).unwrap(),
async_http_client,
)
.await
.unwrap();
let client = CoreClient::from_provider_metadata(
provider_metadata,
ClientId::new("test-client".to_string()),
Some(ClientSecret::new(
"EbIMIpGnYPrG1GBl6eZtVM5zIhiuu5p1".to_string(),
)),
)
// Set the URL the user will be redirected to after the authorization process.
.set_redirect_uri(
RedirectUrl::new("https://bridge.orbekk.com/keycloak-callback".to_string()).unwrap(),
);
client
}
#[get("/login")]
async fn login() -> Redirect {
let (auth_url, csrf_token, nonce) = keycloak_client()
.await
.authorize_url(
AuthenticationFlow::<CoreResponseType>::AuthorizationCode,
CsrfToken::new_random,
Nonce::new_random,
)
.add_scope(Scope::new("email".to_string()))
.add_scope(Scope::new("profile".to_string()))
.url();
log::info!("{:?}", auth_url);
Redirect::to(Reference::parse_owned(auth_url.into()).unwrap())
}
#[get("/keycloak-callback?<code>&<state>")]
async fn keycloak_callback(jar: &CookieJar<'_>, code: &str, state: &str) -> Redirect {
// TODO: Validate state
let request_time = Utc::now();
let token = keycloak_client()
.await
.exchange_code(AuthorizationCode::new(code.to_string()))
.request_async(async_http_client)
.await
.unwrap();
log::info!("token: {:?}", token);
log::info!("access token {:?}", token.access_token().secret());
log::info!(
"refresh token {:?}",
token.refresh_token().unwrap().secret()
);
let expiration =
request_time + chrono::Duration::from_std(token.expires_in().unwrap()).unwrap();
jar.add_private(Cookie::new(
USER_COOKIE,
serde_json::to_string(&UserCookie {
access_token: token.access_token().clone(),
expiration,
refresh_token: token.refresh_token().unwrap().clone(),
})
.unwrap(),
));
Redirect::to(uri!(index))
}
#[rocket::main]
async fn main() -> Result<(), anyhow::Error> {
dotenv::dotenv().ok();
env_logger::init();
rocket::build()
.mount("/api", routes![index, login, keycloak_callback])
.mount("/", FileServer::from(std::env::var("WEBAPP_PATH").unwrap()))
.launch()
.await?;
Ok(())
}
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