use crate::{context::LemmyContext, sensitive::Sensitive}; use actix_web::{http::header::USER_AGENT, HttpRequest}; use chrono::Utc; use jsonwebtoken::{decode, encode, DecodingKey, EncodingKey, Header, Validation}; use lemmy_db_schema::{ newtypes::LocalUserId, source::login_token::{LoginToken, LoginTokenCreateForm}, }; use lemmy_utils::error::{LemmyErrorExt, LemmyErrorType, LemmyResult}; use serde::{Deserialize, Serialize}; #[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq, Hash)] pub struct Claims { /// local_user_id, standard claim by RFC 7519. pub sub: String, pub iss: String, /// Time when this token was issued as UNIX-timestamp in seconds pub iat: i64, } impl Claims { pub async fn validate(jwt: &str, context: &LemmyContext) -> LemmyResult { let mut validation = Validation::default(); validation.validate_exp = false; validation.required_spec_claims.remove("exp"); let jwt_secret = &context.secret().jwt_secret; let key = DecodingKey::from_secret(jwt_secret.as_ref()); let claims = decode::(jwt, &key, &validation).with_lemmy_type(LemmyErrorType::NotLoggedIn)?; let user_id = LocalUserId(claims.claims.sub.parse()?); let is_valid = LoginToken::validate(&mut context.pool(), user_id, jwt).await?; if !is_valid { Err(LemmyErrorType::NotLoggedIn)? } else { Ok(user_id) } } pub async fn generate( user_id: LocalUserId, req: HttpRequest, context: &LemmyContext, ) -> LemmyResult> { let hostname = context.settings().hostname.clone(); let my_claims = Claims { sub: user_id.0.to_string(), iss: hostname, iat: Utc::now().timestamp(), }; let secret = &context.secret().jwt_secret; let key = EncodingKey::from_secret(secret.as_ref()); let token = encode(&Header::default(), &my_claims, &key)?; let ip = req .connection_info() .realip_remote_addr() .map(ToString::to_string); let user_agent = req .headers() .get(USER_AGENT) .and_then(|ua| ua.to_str().ok()) .map(ToString::to_string); let form = LoginTokenCreateForm { token: token.clone(), user_id, ip, user_agent, }; LoginToken::create(&mut context.pool(), form).await?; Ok(Sensitive::new(token)) } } #[cfg(test)] #[allow(clippy::unwrap_used)] #[allow(clippy::indexing_slicing)] mod tests { use crate::{claims::Claims, context::LemmyContext}; use actix_web::test::TestRequest; use lemmy_db_schema::{ source::{ instance::Instance, local_user::{LocalUser, LocalUserInsertForm}, person::{Person, PersonInsertForm}, secret::Secret, }, traits::Crud, utils::build_db_pool_for_tests, }; use lemmy_utils::rate_limit::RateLimitCell; use pretty_assertions::assert_eq; use reqwest::Client; use reqwest_middleware::ClientBuilder; use serial_test::serial; #[tokio::test] #[serial] async fn test_should_not_validate_user_token_after_password_change() { let pool_ = build_db_pool_for_tests().await; let pool = &mut (&pool_).into(); let secret = Secret::init(pool).await.unwrap(); let context = LemmyContext::create( pool_.clone(), ClientBuilder::new(Client::default()).build(), secret, RateLimitCell::with_test_config(), ); let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string()) .await .unwrap(); let new_person = PersonInsertForm::builder() .name("Gerry9812".into()) .public_key("pubkey".to_string()) .instance_id(inserted_instance.id) .build(); let inserted_person = Person::create(pool, &new_person).await.unwrap(); let local_user_form = LocalUserInsertForm::builder() .person_id(inserted_person.id) .password_encrypted("123456".to_string()) .build(); let inserted_local_user = LocalUser::create(pool, &local_user_form, vec![]) .await .unwrap(); let req = TestRequest::default().to_http_request(); let jwt = Claims::generate(inserted_local_user.id, req, &context) .await .unwrap(); let valid = Claims::validate(&jwt, &context).await; assert!(valid.is_ok()); let num_deleted = Person::delete(pool, inserted_person.id).await.unwrap(); assert_eq!(1, num_deleted); } }