Move extern statements to modules where they are used

This will allow for easier feature configuration in the future.

src/assets.rs

@@ -1,10 +1,10 @@
 /// Serves static files from a asset directory.
 
+extern crate mime_guess;
+
 use std::borrow::Cow;
 
-use hyper::header::ContentType;
+use assets::mime_guess::{get_mime_type, octet_stream};
-
-use mime_guess::{get_mime_type, octet_stream};
 
 // Include built-in files
 include!(concat!(env!("OUT_DIR"), "/data.rs"));
@@ -12,7 +12,7 @@ include!(concat!(env!("OUT_DIR"), "/data.rs"));
 /// Returns a static file based upon a given String as a Path.
 ///
 /// file_path: String path, beginning with a /
-pub fn file_from_string(file_path: &str) -> Option<(ContentType, Cow<'static, [u8]>)> {
+pub fn file_from_string(file_path: &str) -> Option<(String, Cow<'static, [u8]>)> {
     let guessed_mime = match file_path.rfind(".") {
         Some(ext_ptr) => {
             let ext = &file_path[ext_ptr + 1..];
@@ -24,11 +24,9 @@ pub fn file_from_string(file_path: &str) -> Option<(ContentType, Cow<'static, [u
 
     let string_mime = guessed_mime.to_string();
 
-    let content_type = ContentType(string_mime.parse().unwrap());
-
     // We already get the / from the HTTP request.
     match FILES.get(&format!("static{}", file_path)) {
-        Ok(val) => Some((content_type, val)),
+        Ok(val) => Some((string_mime, val)),
         // Only error is a not found one
         Err(_) => None,
     }

src/main.rs

@@ -2,12 +2,6 @@
 
 extern crate web_view;
 
-extern crate futures;
-extern crate hyper;
-extern crate hyper_tls;
-extern crate mime_guess;
-extern crate tokio_core;
-
 extern crate includedir;
 extern crate phf;
 
@@ -17,8 +11,6 @@ extern crate serde_derive;
 extern crate serde_json;
 extern crate toml;
 
-extern crate nfd;
-
 mod assets;
 mod rest;
 mod config;

src/rest.rs

@@ -3,18 +3,23 @@
 /// Provides a HTTP/REST server for both frontend<->backend communication, as well
 /// as talking to external applications.
 
-use nfd;
+extern crate futures;
-use nfd::Response as NfdResponse;
+extern crate hyper;
+extern crate hyper_tls;
+extern crate tokio_core;
+
+extern crate nfd;
+
+use rest::nfd::Response as NfdResponse;
 
 use serde_json;
 
-use futures::future;
+use rest::futures::future;
-use futures::future::FutureResult;
+use rest::futures::future::FutureResult;
 
-use hyper;
+use rest::hyper::{Error as HyperError, Get, StatusCode};
-use hyper::{Error as HyperError, Get, StatusCode};
+use rest::hyper::header::{ContentLength, ContentType};
-use hyper::header::{ContentLength, ContentType};
+use rest::hyper::server::{Http, Request, Response, Service};
-use hyper::server::{Http, Request, Response, Service};
 
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use std::thread::{self, JoinHandle};
@@ -149,10 +154,13 @@ impl Service for WebService {
                 println!("Trying {} => {}", req.path(), path);
 
                 match assets::file_from_string(&path) {
-                    Some((content_type, file)) => Response::<hyper::Body>::new()
+                    Some((content_type, file)) => {
-                        .with_header(ContentLength(file.len() as u64))
+                        let content_type = ContentType(content_type.parse().unwrap());
-                        .with_header(content_type)
+                        Response::<hyper::Body>::new()
-                        .with_body(file),
+                            .with_header(ContentLength(file.len() as u64))
+                            .with_header(content_type)
+                            .with_body(file)
+                    },
                     None => Response::new().with_status(StatusCode::NotFound),
                 }
             }