feat: reusable rule engine to prevent memory reallocation

internal/rule/http/option.go

@@ -1,20 +1,18 @@
 package http
 
 import (
-	"net/http"
-
 	"forge.cadoles.com/cadoles/bouncer/internal/rule"
 	"github.com/expr-lang/expr"
 )
 
-func WithRequestFuncs(r *http.Request) rule.OptionFunc {
+func WithRequestFuncs() rule.OptionFunc {
 	return func(opts *rule.Options) {
 		funcs := []expr.Option{
-			setRequestURL(r),
-			setRequestHeaderFunc(r),
-			addRequestHeaderFunc(r),
-			delRequestHeadersFunc(r),
-			setRequestHostFunc(r),
+			setRequestURLFunc(),
+			setRequestHeaderFunc(),
+			addRequestHeaderFunc(),
+			delRequestHeadersFunc(),
+			setRequestHostFunc(),
 		}
 
 		if len(opts.Expr) == 0 {
@@ -25,12 +23,12 @@ func WithRequestFuncs(r *http.Request) rule.OptionFunc {
 	}
 }
 
-func WithResponseFuncs(r *http.Response) rule.OptionFunc {
+func WithResponseFuncs() rule.OptionFunc {
 	return func(opts *rule.Options) {
 		funcs := []expr.Option{
-			setResponseHeaderFunc(r),
-			addResponseHeaderFunc(r),
-			delResponseHeadersFunc(r),
+			setResponseHeaderFunc(),
+			addResponseHeaderFunc(),
+			delResponseHeadersFunc(),
 		}
 
 		if len(opts.Expr) == 0 {