Add a deploy script.

[rup.git] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index 24cfdbb..6c9ab27 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,12 +1,22 @@
 extern crate actix_web;
 extern crate listenfd;
 extern crate askama;
+extern crate percent_encoding;
 
 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 std::io::prelude::*;
+use ron::de::from_reader;
+use serde::Deserialize;
+use std::{fs::File, env::args};
+
+use itertools::Itertools;
+
+mod consts;
+mod crypto;
 
 #[derive(Template)]
 #[template(path = "main.html")]
@@ -19,28 +29,75 @@ pub struct Request {
    m: Option<String>
 }
 
-fn main_page(query: Query<Request>) -> Result<HttpResponse> {
+fn main_page(query: Query<Request>, key: &str) -> Result<HttpResponse> {
     let m =
         match &query.m {
-            Some(b) => &b,
-            None => "Marc, roule un pet'!"
+            Some(b) =>
+                match crypto::decrypt(key, b) {
+                    Ok(m) => m,
+                    Err(_e) => String::from(consts::DEFAULT_MESSAGE) // TODO: log error.
+                },
+            None => String::from(consts::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 get_exe_name() -> String {
+    let first_arg = std::env::args().nth(0).unwrap();
+    //dbg!(&first_arg);
+    let sep: &[_] = &['\\', '/'];
+    first_arg[first_arg.rfind(sep).unwrap()+1..].to_string()
+}
+fn read_key() -> String {
+    let mut key = String::new();
+    File::open(consts::FILE_KEY)
+        .expect(&format!("Failed to open key file: {}", consts::FILE_KEY))
+        .read_to_string(&mut key)
+        .expect(&format!("Failed to read key file: {}", consts::FILE_KEY));
+
+    String::from(
+        percent_encoding::percent_decode(key.replace('\n', "").as_bytes())
+            .decode_utf8()
+            .expect(&format!("Failed to decode key file: {}", consts::FILE_KEY))
+    )
+}
+
 fn main() -> std::io::Result<()> {
+    let key = read_key();
+
+    if process_args(&key) { return Ok(()) }
+
+    println!("Starting RUP as web server...");
+
+    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)
+        }
+    };
+
+    println!("Configuration: {:?}", config);
+
     let mut listenfd = ListenFd::from_env();
     let mut server =
         HttpServer::new(
-            || {
+            move || {
+                let key = key.clone(); // Is this neccessary??
+
                 App::new()
                     .wrap(middleware::Compress::default())
                     .wrap(middleware::Logger::default())
-                    .service(web::resource("/").to(main_page))
+                    .service(web::resource("/").to(move |query| main_page(query, &key)))
                     .service(fs::Files::new("/static", "static").show_files_listing())
             }
         );
@@ -49,8 +106,54 @@ fn main() -> std::io::Result<()> {
         if let Some(l) = listenfd.take_tcp_listener(0).unwrap() {
             server.listen(l).unwrap()
         } else {
-            server.bind("0.0.0.0:8082").unwrap()
+            server.bind(&format!("0.0.0.0:{}", config.port)).unwrap()
         };
 
     server.run()
 }
+
+fn process_args(key: &String) -> bool {
+    fn print_usage() {
+        println!("Usage:");
+        println!(" {} [--help] [--encrypt <plain-text>|--decrypt <cipher-text>]", get_exe_name());
+    }
+
+    let args: Vec<String> = args().collect();
+
+    if args.iter().any(|arg| arg == "--help") {
+        print_usage();
+        return true
+    } else if let Some((position_arg_encrypt, _)) = args.iter().find_position(|arg| arg == &"--encrypt") {
+        match args.iter().nth(position_arg_encrypt + 1) {
+            Some(mess_to_encrypt) => {
+                match crypto::encrypt(&key, mess_to_encrypt) {
+                    Ok(encrypted_mess) => {
+                        let encrypted_mess_encoded = percent_encoding::utf8_percent_encode(&encrypted_mess, percent_encoding::NON_ALPHANUMERIC).to_string();
+                        println!("Encrypted message percent-encoded: {}", encrypted_mess_encoded); },
+                    Err(error) =>
+                        println!("Unable to encrypt: {:?}", error)
+                }
+            }
+            None => print_usage()
+        }
+
+        return true
+    } else if let Some((position_arg_decrypt, _)) = args.iter().find_position(|arg| arg == &"--decrypt") {
+        match args.iter().nth(position_arg_decrypt + 1) {
+            Some(cipher_text) => {
+                let cipher_text_decoded = percent_encoding::percent_decode(cipher_text.as_bytes()).decode_utf8().expect("Unable to decode encoded cipher text");
+                match crypto::decrypt(&key, &cipher_text_decoded) {
+                    Ok(plain_text) =>
+                        println!("Decrypted message: {}", plain_text),
+                    Err(error) =>
+                        println!("Unable to decrypt: {:?}", error)
+                }
+            }
+            None => print_usage()
+        }
+
+        return true
+    }
+
+    return false
+}