some error codes in handler

src/main.rs

@@ -1,6 +1,8 @@
 mod server;
+use std::path::Path;
 
 fn main() {
-    let server = server::Server::new("gemini://localhost");
+    let wwwRoot = Path::new("/var/www/gemini/");
+    let server = server::Server::new("gemini://localhost", &wwwRoot);
     server.serve();
 }

src/server/handler.rs

@@ -1,7 +1,17 @@
-use url::Url;
 use crate::server::response;
 use crate::server::ServerConfig;
+use std::path::Path;
+use url::Url;
 
 pub fn handle(config: &ServerConfig, url: Url) -> Option<response::Response> {
-    Some(response::invalid_protocol())
+    if url.scheme() != "gemini" {
+        return Some(response::invalid_protocol());
+    }
+
+    let path = Path::new(url.path());
+    if !path.has_root() {
+        return Some(response::not_understood());
+    }
+
+    None
 }

src/server/mod.rs

@@ -2,17 +2,19 @@ use crate::server::response::Response;
 use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod, SslStream};
 use std::collections::HashMap;
 use std::net::{SocketAddr, TcpListener, TcpStream};
+use std::path::{Path, PathBuf};
+use std::sync::Arc;
 use std::thread;
 use std::vec::Vec;
-use std::sync::Arc;
 use url::Url;
 
-pub mod response;
 pub mod handler;
+pub mod response;
 
 #[derive(Clone)]
 pub struct ServerConfig {
     defaultHost: Url,
+    wwwRoot: PathBuf,
 }
 
 pub struct Server {
@@ -21,8 +23,11 @@ pub struct Server {
 }
 
 impl Server {
-    pub fn new(host: &str) -> Server {
-        let config = ServerConfig{defaultHost: Url::parse(host).unwrap()};
+    pub fn new(host: &str, wwwRoot: &Path) -> Server {
+        let config = ServerConfig {
+            defaultHost: Url::parse(host).unwrap(),
+            wwwRoot: PathBuf::from(wwwRoot),
+        };
 
         Server {
             acceptor: build_acceptor(),