Implemented DNS on blockchain. Beautified a lot of code, fixed some things.

src/context.rs

@@ -1,9 +1,6 @@
-use crate::{Keystore, Blockchain, Bus, Bytes};
+use crate::{Blockchain, Bus, Keystore};
 use crate::event::Event;
-use serde::{Serialize, Deserialize};
-use std::fs::File;
-use std::io::Read;
-use std::sync::MutexGuard;
+use crate::settings::Settings;
 
 pub struct Context {
     pub settings: Settings,
@@ -43,44 +40,4 @@ impl Context {
     pub fn get_blockchain(&self) -> &Blockchain {
         &self.blockchain
     }
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct Settings {
-    pub origin: String,
-    pub version: u32,
-    pub key_file: String,
-    pub listen: String,
-    pub public: bool,
-    pub peers: Vec<String>
-}
-
-impl Settings {
-    pub fn new<S: Into<String>>(settings: S) -> serde_json::Result<Settings> {
-        serde_json::from_str(&settings.into())
-    }
-
-    pub fn load(file_name: &str) -> Option<Settings> {
-        match File::open(file_name) {
-            Ok(mut file) => {
-                let mut text = String::new();
-                file.read_to_string(&mut text).unwrap();
-                let loaded = serde_json::from_str(&text);
-                return if loaded.is_ok() {
-                    Some(loaded.unwrap())
-                } else {
-                    None
-                }
-            },
-            Err(..) => None
-        }
-    }
-
-    pub fn get_origin(&self) -> Bytes {
-        if self.origin.eq("") {
-            return Bytes::zero32();
-        }
-        let origin = crate::from_hex(&self.origin).expect("Wrong origin in settings");
-        Bytes::from_bytes(origin.as_slice())
-    }
 }