+use std::fs;
+use std::io::prelude::*;
+use std::net::TcpListener;
+use std::net::TcpStream;
+
+fn main() {
+ // Listen for incoming TCP connections on localhost port 7878
+ let listener = TcpListener::bind("127.0.0.1:7878").unwrap();
+
+ // Block forever, handling each request that arrives at this IP address
+ for stream in listener.incoming() {
+ let stream = stream.unwrap();
+
+ handle_connection(stream);
+ }
+}
+
+fn handle_connection(mut stream: TcpStream) {
+ // Read the first 1024 bytes of data from the stream
+ let mut buffer = [0; 1024];
+ stream.read(&mut buffer).unwrap();
+
+ let get = b"GET / HTTP/1.1\r\n";
+
+ // Respond with greetings or a 404,
+ // depending on the data in the request
+ let (status_line, filename) = if buffer.starts_with(get) {
+ ("HTTP/1.1 200 OK\r\n\r\n", "index.html")
+ } else {
+ ("HTTP/1.1 404 NOT FOUND\r\n\r\n", "404.html")
+ };
+ let contents = fs::read_to_string(filename).unwrap();
+
+ // Write response back to the stream,
+ // and flush the stream to ensure the response is sent back to the client
+ let response = format!("{status_line}{contents}");
+ stream.write_all(response.as_bytes()).unwrap();
+ stream.flush().unwrap();
+}
projects / learn-rust.git / commitdiff