From 073c10df771e971d83bd84ac734f88d05c0a5c0b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BE=84=E6=BD=AD?= <zty98751@alibaba-inc.com>
Date: Thu, 25 Jan 2024 10:20:49 +0800
Subject: [PATCH] optimize rewrite regex (#801)

---
 pkg/ingress/kube/annotations/annotations.go      | 2 +-
 pkg/ingress/kube/annotations/annotations_test.go | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkg/ingress/kube/annotations/annotations.go b/pkg/ingress/kube/annotations/annotations.go
index 3ce2c93e2..afaa96092 100644
--- a/pkg/ingress/kube/annotations/annotations.go
+++ b/pkg/ingress/kube/annotations/annotations.go
@@ -83,7 +83,7 @@ func (i *Ingress) NeedRegexMatch(path string) bool {
 	if i.Rewrite == nil {
 		return false
 	}
-	if strings.ContainsAny(path, `\.+*?()|[]{}^$`) {
+	if i.Rewrite.RewriteTarget != "" && strings.ContainsAny(path, `\.+*?()|[]{}^$`) {
 		return true
 	}
 	if strings.ContainsAny(i.Rewrite.RewriteTarget, `$\`) {
diff --git a/pkg/ingress/kube/annotations/annotations_test.go b/pkg/ingress/kube/annotations/annotations_test.go
index 993d4c441..bfad684d2 100644
--- a/pkg/ingress/kube/annotations/annotations_test.go
+++ b/pkg/ingress/kube/annotations/annotations_test.go
@@ -67,6 +67,15 @@ func TestNeedRegexMatch(t *testing.T) {
 			inputPath: "/.*",
 			expect:    true,
 		},
+		{
+			input: &Ingress{
+				Rewrite: &RewriteConfig{
+					UseRegex: false,
+				},
+			},
+			inputPath: "/.",
+			expect:    false,
+		},
 		{
 			input: &Ingress{
 				Rewrite: &RewriteConfig{