Add a configuration file + crypto module interface

[rup.git] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index a64950d..7a179af 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,10 +1,18 @@
 extern crate actix_web;
+extern crate listenfd;
 extern crate askama;
 
+use listenfd::ListenFd;
 use actix_files as fs;
 use actix_web::{web, middleware, App, HttpServer, HttpResponse, Responder, Result, web::Query};
 use askama::Template;
-use serde::{Deserialize};
+
+use ron::de::from_reader;
+use serde::Deserialize;
+use std::fs::File;
+
+mod consts;
+mod crypto;
 
 #[derive(Template)]
 #[template(path = "main.html")]
@@ -17,30 +25,62 @@ pub struct Request {
    m: Option<String>
 }
 
+static DEFAULT_MESSAGE: &str = "Marc, roule un pet'!";
+static KEY: &str = "secret";
+
 fn main_page(query: Query<Request>) -> Result<HttpResponse> {
     let m =
         match &query.m {
-            Some(b) => &b,
-            None => "Marc, roule un pet'!"
+            Some(b) =>
+                match crypto::decrypt(KEY, b) {
+                    Some(m) => m,
+                    None => String::from(DEFAULT_MESSAGE)
+                },
+            None => String::from(DEFAULT_MESSAGE)
         };
 
-    let hello = MainTemplate { sentence: m };
+    let hello = MainTemplate { sentence: &m };
 
     let s = hello.render().unwrap();
     Ok(HttpResponse::Ok().content_type("text/html").body(s))
 }
 
+#[derive(Debug, Deserialize)]
+struct Config {
+    port: u16
+}
+
 fn main() -> std::io::Result<()> {
-    HttpServer::new(
-        || {
-            App::new()
-                .wrap(middleware::Compress::default())
-                .wrap(middleware::Logger::default())
-                .service(web::resource("/").to(main_page))
-                .service(fs::Files::new("/static", "static").show_files_listing())
+    println!("Starting RUP...");
+
+    let config: Config = {
+        let f = File::open(consts::FILE_CONF).expect(&format!("Failed to open configuration file {}", consts::FILE_CONF));
+        match from_reader(f) {
+            Ok(c) => c,
+            Err(e) => panic!("Failed to load config: {}", e)
         }
-    )
-    .bind("0.0.0.0:8082")
-    .expect("Can not bind to port 8082")
-    .run()
+    };
+
+    println!("Configuration: {:?}", config);
+
+    let mut listenfd = ListenFd::from_env();
+    let mut server =
+        HttpServer::new(
+            || {
+                App::new()
+                    .wrap(middleware::Compress::default())
+                    .wrap(middleware::Logger::default())
+                    .service(web::resource("/").to(main_page))
+                    .service(fs::Files::new("/static", "static").show_files_listing())
+            }
+        );
+
+    server =
+        if let Some(l) = listenfd.take_tcp_listener(0).unwrap() {
+            server.listen(l).unwrap()
+        } else {
+            server.bind(&format!("0.0.0.0:{}", config.port)).unwrap()
+        };
+
+    server.run()
 }