Leave tmpfile management to OS

src/kemal/ext/request.cr

@@ -7,6 +7,10 @@ class HTTP::Request
     @override_method ||= check_for_method_override!
   end
 
+  def content_type
+    @headers["Content-Type"]?
+  end
+
   # Checks if method contained in _method param is valid one
   def self.override_method_valid?(override_method : String)
     return false unless override_method.is_a?(String)

src/kemal/route_handler.cr

@@ -45,7 +45,6 @@ module Kemal
       route = context.route_lookup.payload.as(Route)
       content = route.handler.call(context)
     ensure
-      remove_tmpfiles(context)
       if Kemal.config.error_handlers.has_key?(context.response.status_code)
         raise Kemal::Exceptions::CustomException.new(context)
       end
@@ -53,12 +52,6 @@ module Kemal
       context
     end
 
-    private def remove_tmpfiles(context)
-      context.params.files.each do |field, file|
-        File.delete(file.tmpfile.path) if ::File.exists?(file.tmpfile.path)
-      end
-    end
-
     private def radix_path(method, path)
       "/#{method.downcase}#{path}"
     end