hls reverse proxy implemented

src/utils/string_utils.rs

@@ -41,3 +41,11 @@ pub fn get_trimmed_string(value: &Option<String>) -> Option<String> {
     }
     None
 }
+
+pub fn replace_after_last_slash(input: &str, replacement: &str) -> String {
+    match input.rsplitn(2, '/').collect::<Vec<&str>>().as_slice() {
+        [_after, before] => format!("{before}/{replacement}"),
+        [_only] => replacement.to_string(), // if there is no slash, replace complete
+        _ => input.to_string(), // fallback, should never happen
+    }
+}