Create server

src/controllers/mod.rs

@@ -0,0 +1,4 @@
+pub mod routes;
+pub mod server;
+
+pub mod server_controller;

src/controllers/routes.rs

@@ -0,0 +1,41 @@
+use std::error::Error;
+
+use crate::controllers::routes::Method::GET;
+use crate::controllers::server_controller;
+use crate::data::http_request_handler::HttpRequestHandler;
+
+/// Project routes
+///
+/// @author Pierre Hubert
+
+#[derive(PartialEq)]
+pub enum Method {
+    GET,
+    POST,
+}
+
+/// Define types
+pub type RequestResult = Result<(), Box<dyn Error>>;
+pub type RequestProcess = Box<dyn Fn(&mut HttpRequestHandler) -> RequestResult>;
+
+pub struct Route {
+    /// The Verb used for the request
+    pub method: Method,
+
+    /// The URI of the request, with the leading "/"
+    pub uri: &'static str,
+
+    /// If set to true, unauthenticated requests will be rejected
+    pub need_login: bool,
+
+    /// The function called to process a request
+    pub func: RequestProcess,
+}
+
+/// Get the list of routes available
+pub fn get_routes() -> Vec<Route> {
+    vec![
+        // Server meta routes
+        Route { method: GET, uri: "/", need_login: false, func: Box::new(server_controller::main_index) }
+    ]
+}

src/controllers/server.rs

@@ -0,0 +1,80 @@
+use actix_web::{App, HttpResponse, HttpServer, web, http};
+
+use crate::controllers::routes::{get_routes, Route};
+use crate::data::config::Config;
+use crate::data::http_error::HttpError;
+use crate::controllers::routes::Method::{GET, POST};
+use crate::data::http_request_handler::HttpRequestHandler;
+
+/// Main server functions
+///
+/// @author Pierre Hubert
+
+/// Process an incoming request
+async fn process_request(req: web::HttpRequest) -> HttpResponse {
+    let routes = get_routes();
+
+    // We search the appropriate route for the request
+    let mut route: Option<&Route> = None;
+    for el in &routes {
+
+        // Check verb
+        if !(req.method() == http::Method::GET && el.method == GET) &&
+            !(req.method() == http::Method::POST && el.method == POST) {
+            continue;
+        }
+
+        // Check path
+        if !el.uri.eq(req.uri()) {
+            continue;
+        }
+
+        route = Some(el);
+        break;
+    }
+
+    // Check if a route was found
+    if let None = route {
+        return HttpResponse::NotFound().json(HttpError::not_found("Method not found!"));
+    }
+    let route = route.unwrap();
+
+    // Execute the request
+    let mut request = HttpRequestHandler::new(req);
+
+    match (route.func)(&mut request) {
+
+        // Set default error response if required
+        Err(e) => {
+            if !request.has_response() {
+                request.internal_error(e).unwrap_err();
+            }
+        }
+
+        // Set default success response if required
+        Ok(_) => {
+            if !request.has_response() {
+                request.success("Success").unwrap()
+            }
+        }
+
+        // I use this to be quiet with IntelliJ
+        #[allow(unreachable_patterns)]
+        _ => {println!("Unexpected case (server.rs)!")}
+    }
+
+    request.response()
+}
+
+
+/// Given the configuration, start the server
+pub async fn start_server(conf: &Config) -> std::io::Result<()> {
+    let addr = conf.server_listen_address();
+    println!("Start to listen on http://{}/", addr);
+
+    HttpServer::new(|| {
+        App::new()
+            .route("**", web::get().to(process_request))
+            .route("**", web::post().to(process_request))
+    }).bind(&addr)?.run().await
+}

src/controllers/server_controller.rs

@@ -0,0 +1,11 @@
+use crate::data::http_request_handler::HttpRequestHandler;
+use crate::controllers::routes::RequestResult;
+
+/// Main server controller
+///
+/// @author Pierre Hubert
+
+/// Root server index
+pub fn main_index(request:  &mut HttpRequestHandler) -> RequestResult {
+    request.success("Comunic API server V3. (c) Pierre Hubert 2020")
+}