X-Git-Url: http://git.euphorik.ch/?a=blobdiff_plain;f=src%2Fmain.rs;h=ddd9b914cdee26c44baf15e51526366fdecdfc7b;hb=73da6aae874c3d4efc3093173733c397a878fe06;hp=7a179af2ef6d935bdfd003bd82ae7061f639755a;hpb=7b132e2976883c7b8e63540129a36eb63ceb33c5;p=rup.git

diff --git a/src/main.rs b/src/main.rs
index 7a179af..ddd9b91 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,15 +1,18 @@
-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 actix_web::{ web, middleware, App, HttpServer, HttpResponse, web::Query };
 use askama::Template;
 
-use ron::de::from_reader;
-use serde::Deserialize;
-use std::fs::File;
+use std::{ fs::File, path::Path, env::args, io::prelude::* };
+use ron::{ de::from_reader, ser::{ to_string_pretty, PrettyConfig } };
+use serde::{ Deserialize, Serialize };
+
+use itertools::Itertools;
 
 mod consts;
 mod crypto;
@@ -25,52 +28,100 @@ 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> {
+fn main_page(query: Query<Request>, key: &str) -> HttpResponse {
     let m =
         match &query.m {
             Some(b) =>
-                match crypto::decrypt(KEY, b) {
-                    Some(m) => m,
-                    None => String::from(DEFAULT_MESSAGE)
+                match crypto::decrypt(key, b) {
+                    Ok(m) => m,
+                    Err(_e) => String::from(consts::DEFAULT_MESSAGE) // TODO: log error.
                 },
-            None => String::from(DEFAULT_MESSAGE)
+            None => String::from(consts::DEFAULT_MESSAGE)
         };
 
     let hello = MainTemplate { sentence: &m };
 
     let s = hello.render().unwrap();
-    Ok(HttpResponse::Ok().content_type("text/html").body(s))
+    HttpResponse::Ok().content_type("text/html").body(s)
 }
 
-#[derive(Debug, Deserialize)]
+#[derive(Debug, Deserialize, Serialize)]
 struct Config {
     port: u16
 }
 
-fn main() -> std::io::Result<()> {
-    println!("Starting RUP...");
+const DEFAULT_CONFIG: Config = Config { port: 8082 };
 
-    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)
+fn get_exe_name() -> String {
+    let first_arg = std::env::args().next().unwrap();
+    let sep: &[_] = &['\\', '/'];
+    first_arg[first_arg.rfind(sep).unwrap()+1..].to_string()
+}
+
+fn load_config() -> Config {
+    // unwrap_or_else(|_| panic!("Failed to open configuration file {}", consts::FILE_CONF));
+    match File::open(consts::FILE_CONF) {
+        Ok(file) => from_reader(file).unwrap_or_else(|_| panic!("Failed to open configuration file {}", consts::FILE_CONF)),
+        Err(_) => {
+            let mut file = File::create(consts::FILE_CONF) .unwrap();
+            file.write_all(to_string_pretty(&DEFAULT_CONFIG, PrettyConfig::new()).unwrap().as_bytes()).unwrap(); // We do not use 'to_writer' because it can't pretty format the output.
+            DEFAULT_CONFIG
+        }
+    }
+}
+
+fn read_key() -> String {
+    let mut key = String::new();
+    File::open(consts::FILE_KEY)
+        .unwrap_or_else(|_| panic!("Failed to open key file: {}", consts::FILE_KEY))
+        .read_to_string(&mut key)
+        .unwrap_or_else(|_| panic!("Failed to read key file: {}", consts::FILE_KEY));
+
+    String::from(
+        percent_encoding::percent_decode(key.replace('\n', "").as_bytes())
+            .decode_utf8()
+            .unwrap_or_else(|_| panic!("Failed to decode key file: {}", consts::FILE_KEY))
+    )
+}
+
+fn write_key(key : &str) {
+    let percent_encoded = percent_encoding::utf8_percent_encode(key, percent_encoding::NON_ALPHANUMERIC).to_string();
+    let mut file = File::create(consts::FILE_KEY).unwrap();
+    file.write_all(percent_encoded.as_bytes()).unwrap();
+}
+
+#[actix_rt::main]
+async fn main() -> std::io::Result<()> {
+    let key = {
+        // If the key file doesn't exist then create a new one with a random key in it.
+        if !Path::new(consts::FILE_KEY).exists() {
+            let new_key = crypto::generate_key();
+            write_key(&new_key);
+            println!("A key has been generated here: {}", consts::FILE_KEY);
+            new_key
+        } else {
+            read_key()
         }
     };
 
+    if process_args(&key) { return Ok(()) }
+
+    println!("Starting RUP as web server...");
+
+    let config = load_config();
+
     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())
             }
         );
@@ -82,5 +133,52 @@ fn main() -> std::io::Result<()> {
             server.bind(&format!("0.0.0.0:{}", config.port)).unwrap()
         };
 
-    server.run()
+    server.run().await
+}
+
+fn process_args(key: &str) -> 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.get(position_arg_encrypt + 1) {
+            Some(mess_to_encrypt) => {
+                // Encrypt to version 2 (version 1 is obsolete).
+                match crypto::encrypt(&key, mess_to_encrypt, 2) {
+                    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.get(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
+    }
+
+    false
 }