Add some checks

index.gmi

@@ -0,0 +1 @@
+Hello, World!

src/main.rs

@@ -17,14 +17,41 @@ fn handle_connection(mut stream: TcpStream) {
 
     stream.read(&mut buffer).unwrap();
 
-    let contents = fs::read_to_string("index.gmi").unwrap();
-    let response = format!(
-        "2 text/gemini\r\n{}",
-        contents
-    );
+    let hostname = "localhost";
+    let path = "/";
+    let post = "\r\n";
+    
+    /*
+    let get = format!(
+        "{} {} {} {}",
+        hostname,
+        path,
+        post.len(),
+        post
+    );*/
+
+    let get = b"127.0.0.1 / 0\r\n";
+
+    if buffer.starts_with(get) {
+        let contents = fs::read_to_string("index.gmi").unwrap();
+        let status = 2;
+        let meta = "text/gemini";
+        let response = format!(
+            "{} {}\r\n{}",
+            status,
+            meta,
+            contents
+        );
+
+        stream.write(response.as_bytes()).unwrap();
+        stream.flush().unwrap();
+    } else {
+        let status_line = "4 Not Found";
+
+        stream.write(status_line.as_bytes()).unwrap();
+        stream.flush().unwrap();
+    }
 
-    stream.write(response.as_bytes()).unwrap();
-    stream.flush().unwrap();
 
     
 }