Added server

src/server.rs

@@ -0,0 +1,67 @@
+use std::error::Error as StdError;
+use std::io::{Read, Write};
+use std::net::TcpListener;
+use std::sync::Arc;
+
+use rustls::Stream;
+use rustls::pki_types::pem::PemObject;
+use rustls::pki_types::{CertificateDer, PrivateKeyDer};
+
+pub fn run() -> Result<(), Box<dyn StdError>> {
+    let cert_file = "cert.pem";
+    let private_key_file = "key.pem";
+
+    let certs = CertificateDer::pem_file_iter(cert_file)
+        .unwrap()
+        .map(|cert| cert.unwrap())
+        .collect();
+
+    let private_key = PrivateKeyDer::from_pem_file(private_key_file).unwrap();
+
+    let config = Arc::new(
+        rustls::ServerConfig::builder()
+            .with_no_client_auth()
+            .with_single_cert(certs, private_key)?,
+    );
+
+    let listener = TcpListener::bind(format!("0.0.0.0:{}", 443)).unwrap();
+
+    loop {
+        let (mut tcp_stream, _) = listener.accept()?;
+        let mut conn = rustls::ServerConnection::new(config.clone())?;
+        let mut tls_stream = rustls::Stream::new(&mut conn, &mut tcp_stream);
+
+        let mut buf = [0; 1024];
+        if let Ok(len) = tls_stream.read(&mut buf) {
+            let buf_str = String::from_utf8_lossy(&buf[..len]).to_string();
+            if buf_str.starts_with("ROUTE") {
+                let addr = buf_str
+                    .split_once("\n")
+                    .unwrap()
+                    .0
+                    .split_once(" ")
+                    .unwrap()
+                    .1;
+                let http = buf_str.split_once("\n").unwrap().1;
+                tls_stream
+                    .write_all(&send_request(addr, http.as_bytes()))
+                    .unwrap();
+                tls_stream.flush()?;
+            } else {
+                tls_stream
+                    .write_all(&send_request("github.com", buf_str.as_bytes()))
+                    .unwrap();
+                tls_stream.flush()?;
+            }
+        }
+    }
+}
+
+fn send_request(addr: &str, buf: &[u8]) -> Vec<u8> {
+    let (mut conn, mut tcp) = crate::tls::mask_tls(addr).unwrap();
+    let mut tls = Stream::new(&mut conn, &mut tcp);
+    tls.write_all(buf).unwrap();
+    let mut resp = Vec::new();
+    tls.read_to_end(&mut resp).unwrap();
+    resp
+}