Alot of user management

src/backend/Cargo.toml

@@ -5,9 +5,15 @@ edition = "2024"
 
 [dependencies]
 anyhow = "1.0.100"
+argon2 = "0.5.3"
 axum = "0.8.7"
-serde = "1.0.228"
+password-hash = "0.5.0"
+rand_core = { version = "0.6", features = ["getrandom"] }
+serde = { version = "1.0.228", features = ["derive", "serde_derive"] }
 serde_json = "1.0.145"
 tokio = { version = "1.48.0", features = ["macros", "rt-multi-thread"] }
+tower = { version = "0.5.2", features = ["tokio", "tracing"] }
+tower-http = { version = "0.6.7", features = ["cors"] }
 tracing = { version = "0.1.43", features = ["max_level_debug"] }
 tracing-subscriber = "0.3.22"
+validator = { version = "0.20.0", features = ["derive"] }

src/backend/src/auth/mod.rs

@@ -0,0 +1,15 @@
+use argon2::{
+    Argon2,
+    password_hash::{PasswordHash, PasswordHasher, PasswordVerifier, SaltString, rand_core::OsRng},
+};
+use tracing::debug;
+
+pub fn hash_password(password: &str) -> Result<String, password_hash::Error> {
+    let salt = SaltString::generate(&mut OsRng);
+    let argon2 = Argon2::default();
+    let hash = argon2
+        .hash_password(password.as_bytes(), &salt)?
+        .to_string();
+    debug!("Hashed password {}", hash);
+    Ok(hash)
+}

src/backend/src/domain/mod.rs

@@ -0,0 +1 @@
+pub mod user;

src/backend/src/domain/user.rs

@@ -0,0 +1,71 @@
+use std::fmt::Display;
+
+use axum::response::IntoResponse;
+use serde::{Deserialize, Serialize};
+
+use crate::auth;
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct NewUser {
+    username: String,
+    email: Option<String>,
+    password: String,
+    first_name: Option<String>,
+    last_name: Option<String>,
+}
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct InternalUser {
+    username: String,
+    email: Option<String>,
+    password_hash: String,
+    first_name: Option<String>,
+    last_name: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize)]
+pub struct User {
+    username: String,
+    email: Option<String>,
+    first_name: Option<String>,
+    last_name: Option<String>,
+}
+
+#[derive(Debug)]
+pub enum UserConversionError {
+    HashFailed(password_hash::Error),
+}
+
+impl TryFrom<NewUser> for InternalUser {
+    type Error = UserConversionError;
+    fn try_from(value: NewUser) -> Result<Self, Self::Error> {
+        let password_hash =
+            auth::hash_password(&value.password).map_err(|e| UserConversionError::HashFailed(e))?;
+        Ok(Self {
+            username: value.username,
+            email: value.email,
+            password_hash: password_hash,
+            first_name: value.first_name,
+            last_name: value.last_name,
+        })
+    }
+}
+
+impl From<InternalUser> for User {
+    fn from(value: InternalUser) -> Self {
+        Self {
+            username: value.username,
+            email: value.email,
+            first_name: value.first_name,
+            last_name: value.last_name,
+        }
+    }
+}
+
+impl Display for UserConversionError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            UserConversionError::HashFailed(e) => write!(f, "failed to hash password: {e}"),
+        }
+    }
+}

src/backend/src/lib.rs

@@ -1 +1,4 @@
+pub mod auth;
+pub mod domain;
 pub mod router;
+pub mod state;

src/backend/src/main.rs

@@ -1,5 +1,7 @@
+use std::sync::Arc;
+
 use anyhow::{Ok, Result};
-use rustymine_daemon::router;
+use rustymine_daemon::{router, state::AppState};
 use tracing::Level;
 
 #[tokio::main]
@@ -10,9 +12,12 @@ async fn main() -> Result<()> {
 
     tracing::subscriber::set_global_default(subscriber)?;
 
-    let app_result = router::init_router().await?;
+    let state = Arc::new(AppState::new());
 
-    let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
-    axum::serve(listener, app_result).await.unwrap();
+    let app_result = router::init_router(state.clone()).await;
+
+    let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await?;
+
+    axum::serve(listener, app_result).await?;
     Ok(())
 }

src/backend/src/router/middleware.rs

@@ -1,9 +1,24 @@
-use axum::{extract::Request, middleware::Next, response::IntoResponse};
+use axum::{
+    Router,
+    extract::Request,
+    http::{Method, header::AUTHORIZATION},
+    middleware::Next,
+    response::IntoResponse,
+};
+use tower_http::cors::{Any, CorsLayer};
 use tracing::{debug, error, info, warn};
 
-pub async fn auth_middleware(request: Request, next: Next) -> impl IntoResponse {
+pub async fn auth(request: Request, next: Next) -> impl IntoResponse {
     debug!("auth_middleware entry");
     let response = next.run(request).await;
     debug!("auth_middleware exit");
     response
 }
+
+pub fn cors() -> CorsLayer {
+    debug!("Generating CorsLayer");
+    CorsLayer::new()
+        .allow_origin(Any)
+        .allow_methods([Method::GET, Method::POST])
+        .allow_headers([AUTHORIZATION])
+}

src/backend/src/router/mod.rs

@@ -1,14 +1,33 @@
 pub mod middleware;
-use anyhow::Result;
-use axum::{Json, Router, http::StatusCode, middleware::from_fn, routing::get};
-use serde_json::{Value, json};
+pub mod user_routes;
 
-pub async fn init_router() -> Result<Router> {
-    let router = Router::new().route(
-        "/api/ping",
-        get(ping).layer(from_fn(middleware::auth_middleware)),
-    );
-    Ok(router)
+use axum::{
+    Json, Router,
+    http::StatusCode,
+    routing::{get, post},
+};
+use serde_json::{Value, json};
+use std::sync::Arc;
+use tower::{Layer, ServiceBuilder};
+
+use crate::state::AppState;
+
+pub async fn init_router(app_state: Arc<AppState>) -> Router {
+    Router::new()
+        .route(
+            "/api/ping",
+            get(ping).layer(
+                ServiceBuilder::new()
+                    .layer(middleware::cors())
+                    .layer(axum::middleware::from_fn(middleware::auth)),
+            ),
+        )
+        .route(
+            "/api/user/create",
+            post(user_routes::create)
+                .layer(ServiceBuilder::new().layer(middleware::cors()))
+                .with_state(app_state),
+        )
 }
 
 async fn ping() -> Result<Json<Value>, StatusCode> {

src/backend/src/router/user_routes.rs

@@ -0,0 +1,24 @@
+use std::sync::Arc;
+
+use axum::{Json, extract::State, http::StatusCode};
+use serde_json::json;
+use tracing::{debug, error, info, warn};
+
+use crate::{
+    domain::user::{InternalUser, NewUser, User},
+    state::AppState,
+};
+
+pub async fn create(
+    State(state): State<Arc<AppState>>,
+    Json(new_user): Json<NewUser>,
+) -> Result<Json<User>, StatusCode> {
+    let internal = InternalUser::try_from(new_user).map_err(|e| {
+        error!("Conversion to InternalUser failed: {e}");
+        StatusCode::INTERNAL_SERVER_ERROR
+    })?;
+
+    let user = User::from(internal);
+
+    Ok(Json(user))
+}

src/backend/src/state.rs

@@ -0,0 +1,15 @@
+use std::collections::HashMap;
+
+use crate::domain::user::InternalUser;
+
+pub struct AppState {
+    pub users: HashMap<String, InternalUser>,
+}
+
+impl AppState {
+    pub fn new() -> Self {
+        Self {
+            users: HashMap::new(),
+        }
+    }
+}