feat: redirect to url if article has its specific url setting.

Cargo.toml

@@ -24,3 +24,4 @@ actix-files = "0.1.0-alpha.6"
 actix = "0.8.1"
 diesel_migrations = "1.4.0"
 futures = "0.1.26"
+http = "0.1.17"

src/routers/article.rs

@@ -43,6 +43,10 @@ pub fn single_article(
     }
     let article1 = article.unwrap();
 
+    if let Some(to) = article1.url {
+        return RubbleResponder::Redirect(format!("/{}", to));
+    }
+
     let view = ArticleView::from(&article1);
 
     let settings = Setting::load(&connection);

src/routers/mod.rs

@@ -3,6 +3,7 @@ use actix_web::{HttpRequest, HttpResponse, Responder};
 pub mod article;
 use actix_web::error::Error;
 use futures::future::{err, ok, FutureResult};
+
 //pub mod admin;
 //pub mod rss;
 //pub mod catacher;
@@ -12,6 +13,7 @@ pub enum RubbleResponder {
     Html(String),
     Redirect(String),
     NotFound,
+    RedirectPermanently(String),
 }
 
 impl Responder for RubbleResponder {
@@ -23,10 +25,13 @@ impl Responder for RubbleResponder {
             RubbleResponder::Html(content) => ok(HttpResponse::Ok()
                 .content_type("text/html; charset=utf-8")
                 .body(content)),
-            RubbleResponder::Redirect(content) => ok(HttpResponse::Ok()
-                .content_type("text/html")
-                .body("redirect")),
+            RubbleResponder::Redirect(to) => ok(HttpResponse::Found()
+                .header(http::header::LOCATION, to)
+                .finish()),
             RubbleResponder::NotFound => ok(HttpResponse::NotFound().finish()),
+            RubbleResponder::RedirectPermanently(to) => ok(HttpResponse::MovedPermanently()
+                .header(http::header::LOCATION, to)
+                .finish()),
         }
     }
 }