fix: add logs when processing TCP stream

Author: Coko7

src/http/request_raw.rs

@@ -1,4 +1,5 @@
 use anyhow::Result;
+use log::trace;
 use std::{
     io::{BufRead, BufReader, Read},
     net::TcpStream,
@@ -14,15 +15,18 @@ pub struct HttpRequestRaw {
 
 impl HttpRequestRaw {
     pub fn from_tcp(stream: &TcpStream) -> Result<HttpRequestRaw> {
+        trace!("trying to convert TCP message into HTTP request");
         let mut buf_reader = BufReader::new(stream);
 
         let mut request_line = String::new();
         let mut headers = Vec::new();
         let mut body = Vec::new();
 
+        trace!("read request line");
         buf_reader.read_line(&mut request_line)?;
 
         let mut line = String::new();
+        trace!("proceed to read read headers");
         while buf_reader.read_line(&mut line)? > 0 {
             if line.trim().is_empty() {
                 break;
@@ -43,13 +47,16 @@ impl HttpRequestRaw {
             .iter()
             .find(|header| header.name == "Content-Length")
         {
+            trace!("found Content-Length header, using value to read body");
             let content_len: usize = content_len.value.parse()?;
             if content_len > 0 {
+                trace!("read body ({} bytes)", content_len);
                 body = vec![0; content_len];
                 buf_reader.read_exact(&mut body)?;
             }
         }
 
+        trace!("finish processing TCP stream");
         Ok(HttpRequestRaw {
             request_line,
             headers,

src/web_server.rs

@@ -46,8 +46,7 @@ impl WebServer {
             self.pool.execute(move || {
                 let result = handle_connection(router_clone, stream);
                 if let Err(result) = result {
-                    let error = format!("error: {}", result);
-                    error!("{}", error);
+                    error!("handle_connection failed: {}", result);
                 }
             });
         }