Put request data parsing into separate method

src/main.rs

@@ -481,16 +481,8 @@ struct RequestData<'a> {
     progress: &'a str,
 }
 
-fn handle_relative_connection(
-    info: Arc<SiteInfo>,
-    mut stream: TcpStream,
-    body: &str,
-    relative_path: &str,
-    path: &Path,
-    file_paths: DocumentPaths,
-    cookie: Option<&str>,
-    censored: bool,
-) {
+impl<'a> RequestData<'a> {
+    fn parse(body: &'a str) -> Self {
         let mut data = RequestData {
             name: None,
             text: None,
@@ -541,6 +533,20 @@ fn handle_relative_connection(
             }
         }
 
+        data
+    }
+}
+
+fn handle_relative_connection(
+    info: Arc<SiteInfo>,
+    mut stream: TcpStream,
+    body: &str,
+    relative_path: &str,
+    path: &Path,
+    file_paths: DocumentPaths,
+    cookie: Option<&str>,
+    censored: bool,
+) {
     let RequestData {
         name,
         text,
@@ -548,7 +554,7 @@ fn handle_relative_connection(
         down,
         choice,
         progress,
-    } = data;
+    } = RequestData::parse(body);
 
     let comments = {
         let Ok(mut comments) = info.comments.lock() else {