model: rename to auth

Since the "model" doesn't contain any message from the API anymore, and
instead contains only the structures needed for authentication, it was
renamed as such.

auth/src/lib.rs

@@ -0,0 +1,76 @@
+#![allow(clippy::nonstandard_macro_braces)]
+use chrono::prelude::*;
+use serde::{Deserialize, Serialize};
+use std::collections::HashSet;
+
+pub mod opaque;
+
+/// The messages for the 3-step OPAQUE login process.
+pub mod login {
+    use super::*;
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ServerData {
+        pub username: String,
+        pub server_login: opaque::server::login::ServerLogin,
+    }
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ClientLoginStartRequest {
+        pub username: String,
+        pub login_start_request: opaque::server::login::CredentialRequest,
+    }
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ServerLoginStartResponse {
+        /// Base64, encrypted ServerData to be passed back to the server.
+        pub server_data: String,
+        pub credential_response: opaque::client::login::CredentialResponse,
+    }
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ClientLoginFinishRequest {
+        /// Encrypted ServerData from the previous step.
+        pub server_data: String,
+        pub credential_finalization: opaque::client::login::CredentialFinalization,
+    }
+}
+
+/// The messages for the 3-step OPAQUE registration process.
+/// It is used to reset a user's password.
+pub mod registration {
+    use super::*;
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ServerData {
+        pub username: String,
+    }
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ClientRegistrationStartRequest {
+        pub username: String,
+        pub registration_start_request: opaque::server::registration::RegistrationRequest,
+    }
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ServerRegistrationStartResponse {
+        /// Base64, encrypted ServerData to be passed back to the server.
+        pub server_data: String,
+        pub registration_response: opaque::client::registration::RegistrationResponse,
+    }
+
+    #[derive(Serialize, Deserialize, Clone)]
+    pub struct ClientRegistrationFinishRequest {
+        /// Encrypted ServerData from the previous step.
+        pub server_data: String,
+        pub registration_upload: opaque::server::registration::RegistrationUpload,
+    }
+}
+
+#[derive(Clone, Serialize, Deserialize)]
+pub struct JWTClaims {
+    pub exp: DateTime<Utc>,
+    pub iat: DateTime<Utc>,
+    pub user: String,
+    pub groups: HashSet<String>,
+}