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-rw-r--r--server/src/db.rs6
-rw-r--r--server/src/errors.rs14
-rw-r--r--server/src/logger.rs1
-rw-r--r--server/src/main.rs5
-rw-r--r--server/src/models/auth.rs10
-rw-r--r--server/src/models/user.rs9
-rw-r--r--server/src/routes/auth.rs3
-rw-r--r--server/src/routes/user.rs4
8 files changed, 52 insertions, 0 deletions
diff --git a/server/src/db.rs b/server/src/db.rs
index 3c1467e..43c3bd9 100644
--- a/server/src/db.rs
+++ b/server/src/db.rs
@@ -2,8 +2,12 @@ use crate::errors::AppError;
use sqlx::postgres::PgPool;
+/// Static variable used to manage the database connection. Called with value = None raises a panic
+/// error.
static mut CONNECTION: Option<PgPool> = None;
+/// Setup database connection. Get variable `DATABASE_URL` from the environment. Sqlx crate already
+/// defines an error for environments without DATABASE_URL.
pub async fn setup() -> Result<(), AppError> {
let database_url =
std::env::var("DATABASE_URL").expect("Define `DATABASE_URL` environment variable.");
@@ -15,6 +19,8 @@ pub async fn setup() -> Result<(), AppError> {
Ok(())
}
+/// Get connection. Raises an error if `setup()` has not been called yet.
+/// Managing static `CONNECTION` is an unsafe operation.
pub unsafe fn get_client() -> &'static PgPool {
match &CONNECTION {
Some(client) => client,
diff --git a/server/src/errors.rs b/server/src/errors.rs
index 304d744..e541eda 100644
--- a/server/src/errors.rs
+++ b/server/src/errors.rs
@@ -5,16 +5,29 @@ use axum::{
};
use serde_json::json;
+/// All errors raised by the web app
pub enum AppError {
+ /// Generic error, never called yet
Generic,
+ /// Database error
Database,
+ /// Generic bad request. It is handled with a message value
BadRequest(String),
+ /// Not found error
NotFound,
+ /// Raised when a token is not good created
TokenCreation,
+ /// Raised when a passed token is not valid
InvalidToken,
}
+/// Use `AppError` as response for an endpoint
impl IntoResponse for AppError {
+ /// Matches `AppError` into a tuple of status and error message.
+ /// The response will be a JSON in the format of:
+ /// ```json
+ /// { "error": "<message>" }
+ /// ```
fn into_response(self) -> Response {
let (status, error_message) = match self {
AppError::Generic => (
@@ -42,6 +55,7 @@ impl IntoResponse for AppError {
}
}
+/// Transforms a `sqlx::Error` into a `AppError::Databse` error
impl From<sqlx::Error> for AppError {
fn from(_error: sqlx::Error) -> AppError {
AppError::Database
diff --git a/server/src/logger.rs b/server/src/logger.rs
index fa569ee..718384a 100644
--- a/server/src/logger.rs
+++ b/server/src/logger.rs
@@ -1,5 +1,6 @@
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
+/// Setup tracing subscriber logger
pub fn setup() {
tracing_subscriber::registry()
.with(tracing_subscriber::EnvFilter::new(
diff --git a/server/src/main.rs b/server/src/main.rs
index 8e44f7a..508d6cd 100644
--- a/server/src/main.rs
+++ b/server/src/main.rs
@@ -13,10 +13,12 @@ use tower_http::sensitive_headers::SetSensitiveHeadersLayer;
use tower_http::{classify::ServerErrorsFailureClass, trace::TraceLayer};
use tracing::Span;
+/// Main application, called by the execution of the software
#[tokio::main]
async fn main() {
let app = create_app().await;
+ /// By default the server is bind at "127.0.0.1:3000"
let addr = std::env::var("ALLOWED_HOST").unwrap_or_else(|_| "127.0.0.1:3000".to_string());
tracing::info!("Listening on {}", addr);
@@ -26,6 +28,7 @@ async fn main() {
.unwrap();
}
+/// Create the app: setup everything and returns a `Router`
async fn create_app() -> Router {
logger::setup();
let _ = db::setup().await;
@@ -35,12 +38,14 @@ async fn create_app() -> Router {
.nest("/auth", routes::auth::create_route());
Router::new()
+ // Map all routes to `/v1/*` namespace
.nest("/v1", api_routes)
// Mark the `Authorization` request header as sensitive so it doesn't
// show in logs.
.layer(SetSensitiveHeadersLayer::new(std::iter::once(
header::AUTHORIZATION,
)))
+ // Use a layer for `TraceLayer`
.layer(
TraceLayer::new_for_http()
.on_request(|request: &Request<_>, _span: &Span| {
diff --git a/server/src/models/auth.rs b/server/src/models/auth.rs
index 573f5d1..8b8f61c 100644
--- a/server/src/models/auth.rs
+++ b/server/src/models/auth.rs
@@ -14,15 +14,21 @@ struct Keys {
decoding: DecodingKey,
}
+/// Claims struct
#[derive(Serialize, Deserialize)]
pub struct Claims {
+ /// ID from the user model
user_id: i32,
+ /// Expiration timestamp
exp: usize,
}
+/// Body used as response to login
#[derive(Serialize)]
pub struct AuthBody {
+ /// Access token string
access_token: String,
+ /// "Bearer" string
token_type: String,
}
@@ -41,6 +47,7 @@ impl Keys {
}
impl Claims {
+ /// Create a new Claim using the `user_id` and the current timestamp + 2 days
pub fn new(user_id: i32) -> Self {
let expiration = Local::now() + Duration::days(2);
@@ -50,6 +57,8 @@ impl Claims {
}
}
+ /// Returns the token as a string. If a token is not encoded, raises an
+ /// `AppError::TokenCreation`
pub fn get_token(&self) -> Result<String, AppError> {
let token = encode(&Header::default(), &self, &KEYS.encoding)
.map_err(|_| AppError::TokenCreation)?;
@@ -67,6 +76,7 @@ impl AuthBody {
}
}
+/// Parse a request to get the Authorization header and then decode it checking its validation
#[async_trait]
impl<B> FromRequest<B> for Claims
where
diff --git a/server/src/models/user.rs b/server/src/models/user.rs
index dd96f90..06cde0a 100644
--- a/server/src/models/user.rs
+++ b/server/src/models/user.rs
@@ -4,6 +4,7 @@ use crate::errors::AppError;
use serde::{Deserialize, Serialize};
use validator::Validate;
+/// User model
#[derive(Deserialize, Serialize, Validate)]
pub struct User {
id: i32,
@@ -14,13 +15,16 @@ pub struct User {
is_staff: Option<bool>,
}
+/// Response used to print a user (or a users list)
#[derive(Deserialize, Serialize)]
pub struct UserList {
+ // It is public because it used by `Claims` creation
pub id: i32,
email: String,
is_staff: Option<bool>,
}
+/// Payload used for user creation
#[derive(Deserialize)]
pub struct UserCreate {
pub email: String,
@@ -28,6 +32,7 @@ pub struct UserCreate {
}
impl User {
+ /// By default an user has id = 0. It is not created yet
pub fn new(email: String, password: String) -> Self {
Self {
id: 0,
@@ -37,6 +42,7 @@ impl User {
}
}
+ /// Create a new user from the model using a SHA256 crypted password
pub async fn create(user: User) -> Result<UserList, AppError> {
let pool = unsafe { get_client() };
@@ -61,6 +67,7 @@ impl User {
Ok(rec)
}
+ /// Find a user using the model. It used for login
pub async fn find(user: User) -> Result<UserList, AppError> {
let pool = unsafe { get_client() };
@@ -81,6 +88,7 @@ impl User {
Ok(rec)
}
+ /// Returns the user with id = `user_id`
pub async fn find_by_id(user_id: i32) -> Result<UserList, AppError> {
let pool = unsafe { get_client() };
@@ -98,6 +106,7 @@ impl User {
Ok(rec)
}
+ /// List all users
pub async fn list() -> Result<Vec<UserList>, AppError> {
let pool = unsafe { get_client() };
let rows = sqlx::query_as!(UserList, r#"SELECT id, email, is_staff FROM users"#)
diff --git a/server/src/routes/auth.rs b/server/src/routes/auth.rs
index 629ed33..37c41b2 100644
--- a/server/src/routes/auth.rs
+++ b/server/src/routes/auth.rs
@@ -5,10 +5,13 @@ use crate::models::{
};
use axum::{routing::post, Json, Router};
+/// Create routes for `/v1/auth/` namespace
pub fn create_route() -> Router {
Router::new().route("/login", post(make_login))
}
+/// Make login. Check if a user with the email and password passed in request body exists into the
+/// database
async fn make_login(Json(payload): Json<UserCreate>) -> Result<Json<AuthBody>, AppError> {
let user = User::new(payload.email, payload.password);
match User::find(user).await {
diff --git a/server/src/routes/user.rs b/server/src/routes/user.rs
index 3ca0e7b..d44df66 100644
--- a/server/src/routes/user.rs
+++ b/server/src/routes/user.rs
@@ -5,18 +5,21 @@ use crate::models::{
};
use axum::{extract::Path, routing::get, Json, Router};
+/// Create routes for `/v1/users/` namespace
pub fn create_route() -> Router {
Router::new()
.route("/", get(list_users).post(create_user))
.route("/:id", get(get_user))
}
+/// List users. Checks Authorization token
async fn list_users(_: Claims) -> Result<Json<Vec<UserList>>, AppError> {
let users = User::list().await?;
Ok(Json(users))
}
+/// Create an user. Checks Authorization token
async fn create_user(
Json(payload): Json<UserCreate>,
_: Claims,
@@ -27,6 +30,7 @@ async fn create_user(
Ok(Json(user_new))
}
+/// Get an user with id = `user_id`. Checks Authorization token
async fn get_user(Path(user_id): Path<i32>, _: Claims) -> Result<Json<UserList>, AppError> {
match User::find_by_id(user_id).await {
Ok(user) => Ok(Json(user)),
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-10 03:08:57 +0000