Automatically create admin on first start

.gitignore

@@ -1,2 +1,3 @@
 /target
 .idea
+storage

Cargo.toml

@@ -6,3 +6,10 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+rocket = "0.5.0-rc.1"
+log = "0.4.16"
+serde_json = "1.0.79"
+env_logger = "0.9.0"
+serde = { version = "1.0.136", features = ["derive"] }
+bcrypt = "0.12.1"
+uuid = { version = "0.8.2", features = ["v4"] }

src/constants.rs

@@ -0,0 +1,6 @@
+/// File in storage containing users list
+pub const USERS_LIST_FILE: &str = "users.json";
+
+/// Default built-in credentials
+pub const DEFAULT_ADMIN_USERNAME: &str = "admin";
+pub const DEFAULT_ADMIN_PASSWORD: &str = "admin";

src/data/app_config.rs

@@ -0,0 +1,19 @@
+use std::path::{Path, PathBuf};
+use rocket::serde::Deserialize;
+use crate::constants::USERS_LIST_FILE;
+
+#[derive(Debug, Deserialize)]
+#[serde(crate = "rocket::serde")]
+pub struct AppConfig {
+    storage_path: PathBuf,
+}
+
+impl AppConfig {
+    pub fn storage_path(&self) -> &Path {
+        self.storage_path.as_ref()
+    }
+
+    pub fn users_file(&self) -> PathBuf {
+        self.storage_path.join(USERS_LIST_FILE)
+    }
+}

src/data/entity_manager.rs

@@ -0,0 +1,43 @@
+use std::path::{Path, PathBuf};
+
+use crate::utils::err::Res;
+
+pub struct EntityManager<E> {
+    file_path: PathBuf,
+    list: Vec<E>,
+}
+
+impl<E> EntityManager<E> where E: rocket::serde::Serialize + rocket::serde::DeserializeOwned + Eq + Clone {
+    /// Open entity
+    pub fn open_or_create<A: AsRef<Path>>(path: A) -> Res<Self> {
+        if !path.as_ref().is_file() {
+            log::warn!("Entities at {:?} does not point to a file, creating a new empty entity container...", path.as_ref());
+            return Ok(Self {
+                file_path: path.as_ref().to_path_buf(),
+                list: vec![],
+            });
+        }
+
+        log::info!("Open existing entity file {:?}", path.as_ref());
+        Ok(Self {
+            file_path: path.as_ref().to_path_buf(),
+            list: serde_json::from_str(&std::fs::read_to_string(path.as_ref())?)?,
+        })
+    }
+
+    /// Get the number of entries in the list
+    pub fn len(&self) -> usize {
+        self.list.len()
+    }
+
+    /// Save the list
+    fn save(&self) -> Res {
+        Ok(std::fs::write(&self.file_path, serde_json::to_string(&self.list)?)?)
+    }
+
+    /// Insert a new element in the list
+    pub fn insert(&mut self, el: E) -> Res {
+        self.list.push(el);
+        self.save()
+    }
+}

src/data/mod.rs

@@ -0,0 +1,4 @@
+pub mod app_config;
+pub mod user;
+pub mod service;
+pub mod entity_manager;

src/data/service.rs

@@ -0,0 +1,2 @@
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, PartialEq, Eq)]
+pub struct ServiceID(String);

src/data/user.rs

@@ -0,0 +1,48 @@
+use crate::data::service::ServiceID;
+use crate::utils::err::Res;
+
+#[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
+pub struct User {
+    pub uid: String,
+    pub first_name: String,
+    pub last_last: String,
+    pub username: String,
+    pub email: String,
+    pub password: String,
+    pub need_reset_password: bool,
+    pub enabled: bool,
+    pub admin: bool,
+
+    /// None = all services
+    /// Some([]) = no service
+    pub authorized_services: Option<Vec<ServiceID>>,
+}
+
+impl PartialEq for User {
+    fn eq(&self, other: &Self) -> bool {
+        self.uid.eq(&other.uid)
+    }
+}
+
+impl Eq for User {}
+
+impl Default for User {
+    fn default() -> Self {
+        Self {
+            uid: uuid::Uuid::new_v4().to_string(),
+            first_name: "".to_string(),
+            last_last: "".to_string(),
+            username: "".to_string(),
+            email: "".to_string(),
+            password: "".to_string(),
+            need_reset_password: false,
+            enabled: true,
+            admin: false,
+            authorized_services: None
+        }
+    }
+}
+
+pub fn hash_password<P: AsRef<[u8]>>(pwd: P) -> Res<String> {
+    Ok(bcrypt::hash(pwd, bcrypt::DEFAULT_COST)?)
+}

src/lib.rs

@@ -0,0 +1,3 @@
+pub mod data;
+pub mod utils;
+pub mod constants;

src/main.rs

@@ -1,3 +1,51 @@
-fn main() {
-    println!("Hello, world!");
+#[macro_use]
+extern crate rocket;
+
+use rocket::fairing::AdHoc;
+
+use basic_oidc::constants::{DEFAULT_ADMIN_PASSWORD, DEFAULT_ADMIN_USERNAME};
+use basic_oidc::data::app_config::AppConfig;
+use basic_oidc::data::entity_manager::EntityManager;
+use basic_oidc::data::user::{hash_password, User};
+
+#[get("/health")]
+fn index() -> &'static str {
+    "Running"
+}
+
+#[launch]
+fn rocket() -> _ {
+    //env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
+
+    let rocket = rocket::build()
+        .mount("/", routes![index])
+        .attach(AdHoc::config::<AppConfig>());
+    let figment = rocket.figment();
+
+    // Initialize application
+    let config: AppConfig = figment.extract().expect("config");
+
+    if !config.storage_path().exists() {
+        log::error!("Specified storage path {:?} does not exists!", config.storage_path());
+        panic!()
+    }
+
+    let mut users = EntityManager::<User>::open_or_create(config.users_file())
+        .expect("Failed to load users list!");
+
+    // Create initial user if required
+    if users.len() == 0 {
+        log::info!("Create default {} user", DEFAULT_ADMIN_USERNAME);
+        let mut default_admin = User::default();
+        default_admin.username = DEFAULT_ADMIN_USERNAME.to_string();
+        default_admin.password = hash_password(DEFAULT_ADMIN_PASSWORD).unwrap();
+        default_admin.need_reset_password = true;
+        default_admin.authorized_services = None;
+        default_admin.admin = true;
+
+        users.insert(default_admin)
+            .expect("Failed to create initial user!");
+    }
+
+    rocket
 }

src/utils.rs

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

src/utils/err.rs

@@ -0,0 +1,2 @@
+use std::error::Error;
+pub type Res<A = ()> = Result<A, Box<dyn Error>>;