add a basic implementation of the webring

you put your sites url into the url query and it should redirect you to
the next or previous site and it will overflow if you're the last or
first site in the array.

.editorconfig

@@ -0,0 +1,4 @@
+[*]
+indent_style = tab
+end_of_line = lf
+insert_final_newline = true

rustfmt.toml

@@ -0,0 +1 @@
+hard_tabs = true

src/main.rs

@@ -1,22 +1,34 @@
-#[macro_use] extern crate rocket;
-use rocket::response::Redirict;
+#[macro_use]
+extern crate rocket;
+use rocket::response::Redirect;
+
+static NAMES: [&str; 2] = ["mossfet.xyz", "fries.gay"];
 
 #[get("/")]
 fn index() -> &'static str {
 	"Like, this is a webring, meow!"
 }
 
-#[get("/next")]
-fn next() -> Redirect {
-    Redirect::to(uri!("https://mossfet.xyz"))
+#[get("/next?<source_url>")]
+fn next(source_url: &str) -> Redirect {
+	// this is gay
+	match NAMES.iter().position(|&r| r == source_url) {
+		Some(index) if index == NAMES.len() - 1 => Redirect::to(format!("https://{}", NAMES[0])),
+		Some(index) => Redirect::to(format!("https://{}", NAMES[index + 1])),
+		None => Redirect::to(uri!("/404.html")),
+	}
 }
 
-#[get("/prev")]
-fn prev -> Redirect {
-    Redirect::to(uri!("https://fries.gay"))
+#[get("/prev?<source_url>")]
+fn prev(source_url: &str) -> Redirect {
+	match NAMES.iter().position(|&r| r == source_url) {
+		Some(index) if index == 0 => Redirect::to(format!("https://{}", NAMES[NAMES.len() - 1])),
+		Some(index) => Redirect::to(format!("https://{}", NAMES[index - 1])),
+		None => todo!(),
+	}
 }
 
 #[launch]
 fn rocket() -> _ {
-    rocket::build().mount("/", routes![index])
+	rocket::build().mount("/", routes![index, next, prev])
 }