working file serving

src/main.rs

@@ -1,8 +1,18 @@
 mod server;
+use std::env;
 use std::path::Path;
 
+fn read_config() -> server::ServerConfig {
+    let mut config = server::ServerConfig::new(
+        "klockenschooster.de".to_string(),
+        "/home/jw/code/projects/sheldond/doc".to_string(),
+    );
+    config.add_addr("127.0.0.1:1965".to_string());
+    config.add_addr("[::1]:1965".to_string());
+    return config;
+}
+
 fn main() {
-    let wwwRoot = Path::new("/var/www/gemini/");
-    let server = server::Server::new("gemini://localhost", &wwwRoot);
+    let server = server::Server::new(&read_config());
     server.serve();
 }

src/server/handler.rs

@@ -1,17 +1,32 @@
 use crate::server::response;
 use crate::server::ServerConfig;
+use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod, SslStream};
+use std::fs::File;
+use std::io::{copy, BufReader, BufWriter};
+use std::net::TcpStream;
 use std::path::Path;
 use url::Url;
 
-pub fn handle(config: &ServerConfig, url: Url) -> Option<response::Response> {
+pub fn handle(config: &ServerConfig, url: Url, stream: &mut SslStream<TcpStream>) {
     if url.scheme() != "gemini" {
-        return Some(response::invalid_protocol());
+        stream.ssl_write(&response::invalid_protocol().to_vec());
+        return;
     }
 
-    let path = Path::new(url.path());
-    if !path.has_root() {
-        return Some(response::not_understood());
-    }
+    let rel_path = Path::new(url.path()).strip_prefix("/").unwrap();
+    let path = config.www_root.join(rel_path);
 
-    None
+    let file = match File::open(&path) {
+        Ok(file) => file,
+        Err(_) => {
+            stream.ssl_write(&response::not_found().to_vec());
+            return;
+        }
+    };
+
+    stream.ssl_write(&response::Header::new(response::Status::Success, "text/gemini").to_vec());
+
+    let mut buf_file = BufReader::new(file);
+    let mut buf_stream = BufWriter::new(stream);
+    copy(&mut buf_file, &mut buf_stream);
 }

src/server/mod.rs

@@ -1,4 +1,3 @@
-use crate::server::response::Response;
 use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod, SslStream};
 use std::collections::HashMap;
 use std::net::{SocketAddr, TcpListener, TcpStream};
@@ -13,8 +12,26 @@ pub mod response;
 
 #[derive(Clone)]
 pub struct ServerConfig {
-    defaultHost: Url,
-    wwwRoot: PathBuf,
+    default_host: Url,
+    www_root: PathBuf,
+    addrs: Vec<SocketAddr>,
+}
+
+impl ServerConfig {
+    pub fn new(default_host: String, www_root: String) -> ServerConfig {
+        let mut url = Url::parse("gemini://default").unwrap();
+        url.set_host(Some(default_host.as_str()));
+
+        ServerConfig {
+            default_host: url,
+            www_root: PathBuf::from(www_root),
+            addrs: Vec::new(),
+        }
+    }
+
+    pub fn add_addr(&mut self, addr: String) {
+        self.addrs.push(addr.parse().unwrap());
+    }
 }
 
 pub struct Server {
@@ -23,21 +40,15 @@ pub struct Server {
 }
 
 impl Server {
-    pub fn new(host: &str, wwwRoot: &Path) -> Server {
-        let config = ServerConfig {
-            defaultHost: Url::parse(host).unwrap(),
-            wwwRoot: PathBuf::from(wwwRoot),
-        };
-
+    pub fn new(config: &ServerConfig) -> Server {
         Server {
             acceptor: build_acceptor(),
-            config: config,
+            config: config.clone(),
         }
     }
 
     pub fn serve(&self) {
-        let addrs = [SocketAddr::from(([127, 0, 0, 1], 1965))];
-        let listener = TcpListener::bind(&addrs[..]).unwrap();
+        let listener = TcpListener::bind(&self.config.addrs[..]).unwrap();
 
         for stream in listener.incoming() {
             match stream {
@@ -62,15 +73,10 @@ fn handle_client(config: &ServerConfig, mut stream: SslStream<TcpStream>) {
 
     let location = match Url::parse(&request) {
         Ok(url) => url,
-        Err(e) => config.defaultHost.join(&request).unwrap(),
+        Err(e) => config.default_host.join(&request).unwrap(),
     };
 
-    let response = match handler::handle(config, location) {
-        Some(response) => response,
-        None => response::internal_error(),
-    };
-
-    stream.ssl_write(&response.format());
+    handler::handle(config, location, &mut stream);
 }
 
 fn build_acceptor() -> std::sync::Arc<SslAcceptor> {

src/server/response.rs

@@ -15,11 +15,6 @@ pub struct Header {
     meta: String,
 }
 
-pub struct Response {
-    header: Header,
-    data: Vec<u8>,
-}
-
 impl Header {
     pub fn new(status: Status, meta: &str) -> Header {
         Header {
@@ -31,47 +26,24 @@ impl Header {
     pub fn format(&self) -> String {
         format!("{} {}\r\n", self.status as u8, self.meta)
     }
-}
 
-impl Response {
-    pub fn new(header: Header, data: Vec<u8>) -> Response {
-        Response {
-            header: header,
-            data: data,
-        }
-    }
-
-    pub fn new_empty(header: Header) -> Response {
-        Response {
-            header: header,
-            data: Vec::new(),
-        }
-    }
-
-    pub fn format(&self) -> Vec<u8> {
-        let mut resp: Vec<u8> = self.header.format().as_bytes().to_vec();
-        resp.extend(&self.data);
-        return resp;
+    pub fn to_vec(&self) -> Vec<u8> {
+        self.format().as_bytes().to_vec()
     }
 }
 
-pub fn invalid_protocol() -> Response {
-    Response::new_empty(Header::new(
-        Status::PermanentFailure,
-        "this protocol is not supported",
-    ))
+pub fn invalid_protocol() -> Header {
+    Header::new(Status::PermanentFailure, "this protocol is not supported")
 }
 
-pub fn not_understood() -> Response {
-    Response::new_empty(Header::new(
-        Status::PermanentFailure,
-        "request not understood",
-    ))
+pub fn not_understood() -> Header {
+    Header::new(Status::PermanentFailure, "request not understood")
 }
 
-pub fn internal_error() -> Response {
-    Response::new_empty(Header::new(
-        Status::PermanentFailure,
-        "internal server error",
-    ))
+pub fn not_found() -> Header {
+    Header::new(Status::PermanentFailure, "resource not found")
+}
+
+pub fn internal_error() -> Header {
+    Header::new(Status::PermanentFailure, "internal server error")
 }