From a53d561ddd3226b6173e56ab10af78bbece4292e Mon Sep 17 00:00:00 2001
From: buffermet <29265684+buffermet@users.noreply.github.com>
Date: Wed, 9 Apr 2025 11:26:56 +0200
Subject: [PATCH 1/2] Add req.GetHeaders and res.GetHeaders, reduce overhead.

---
 modules/http_proxy/http_proxy_js_request.go  | 20 ++++++++++++++++-
 modules/http_proxy/http_proxy_js_response.go | 23 ++++++++++++++++++--
 2 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/modules/http_proxy/http_proxy_js_request.go b/modules/http_proxy/http_proxy_js_request.go
index 1eee69b6..c0ba9f26 100644
--- a/modules/http_proxy/http_proxy_js_request.go
+++ b/modules/http_proxy/http_proxy_js_request.go
@@ -124,7 +124,6 @@ func (j *JSRequest) GetHeader(name, deflt string) string {
 			if len(header_parts) != 0 && len(header_parts[0]) == 3 {
 				header_name := string(header_parts[0][1])
 				header_value := string(header_parts[0][2])
-
 				if strings.ToLower(name) == strings.ToLower(header_name) {
 					return header_value
 				}
@@ -134,6 +133,25 @@ func (j *JSRequest) GetHeader(name, deflt string) string {
 	return deflt
 }
 
+func (j *JSRequest) GetHeaders(name string) []string {
+	name = strings.ToLower(name)
+	headers := strings.Split(j.Headers, "\r\n")
+	header_values := make([]string, 0, len(headers))
+	for i := 0; i < len(headers); i++ {
+		if headers[i] != "" {
+			header_parts := header_regexp.FindAllSubmatch([]byte(headers[i]), 1)
+			if len(header_parts) != 0 && len(header_parts[0]) == 3 {
+				header_name := string(header_parts[0][1])
+				header_value := string(header_parts[0][2])
+				if name == strings.ToLower(header_name) {
+					header_values = append(header_values, header_value)
+				}
+			}
+		}
+	}
+	return header_values
+}
+
 func (j *JSRequest) SetHeader(name, value string) {
 	name = strings.TrimSpace(name)
 	value = strings.TrimSpace(value)
diff --git a/modules/http_proxy/http_proxy_js_response.go b/modules/http_proxy/http_proxy_js_response.go
index b464a979..0e46fa7f 100644
--- a/modules/http_proxy/http_proxy_js_response.go
+++ b/modules/http_proxy/http_proxy_js_response.go
@@ -98,6 +98,7 @@ func (j *JSResponse) CheckIfModifiedAndUpdateHash() bool {
 }
 
 func (j *JSResponse) GetHeader(name, deflt string) string {
+	name = strings.ToLower(name)
 	headers := strings.Split(j.Headers, "\r\n")
 	for i := 0; i < len(headers); i++ {
 		if headers[i] != "" {
@@ -105,8 +106,7 @@ func (j *JSResponse) GetHeader(name, deflt string) string {
 			if len(header_parts) != 0 && len(header_parts[0]) == 3 {
 				header_name := string(header_parts[0][1])
 				header_value := string(header_parts[0][2])
-
-				if strings.ToLower(name) == strings.ToLower(header_name) {
+				if name == strings.ToLower(header_name) {
 					return header_value
 				}
 			}
@@ -115,6 +115,25 @@ func (j *JSResponse) GetHeader(name, deflt string) string {
 	return deflt
 }
 
+func (j *JSResponse) GetHeaders(name string) []string {
+	name = strings.ToLower(name)
+	headers := strings.Split(j.Headers, "\r\n")
+	header_values := make([]string, 0, len(headers))
+	for i := 0; i < len(headers); i++ {
+		if headers[i] != "" {
+			header_parts := header_regexp.FindAllSubmatch([]byte(headers[i]), 1)
+			if len(header_parts) != 0 && len(header_parts[0]) == 3 {
+				header_name := string(header_parts[0][1])
+				header_value := string(header_parts[0][2])
+				if name == strings.ToLower(header_name) {
+					header_values = append(header_values, header_value)
+				}
+			}
+		}
+	}
+	return header_values
+}
+
 func (j *JSResponse) SetHeader(name, value string) {
 	name = strings.TrimSpace(name)
 	value = strings.TrimSpace(value)

From 04ed02f420789235c35df9281757a297b92ed263 Mon Sep 17 00:00:00 2001
From: buffermet <29265684+buffermet@users.noreply.github.com>
Date: Wed, 9 Apr 2025 12:39:33 +0200
Subject: [PATCH 2/2] Reduce overhead.

---
 modules/http_proxy/http_proxy_js_request.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/http_proxy/http_proxy_js_request.go b/modules/http_proxy/http_proxy_js_request.go
index c0ba9f26..563c9b33 100644
--- a/modules/http_proxy/http_proxy_js_request.go
+++ b/modules/http_proxy/http_proxy_js_request.go
@@ -117,6 +117,7 @@ func (j *JSRequest) CheckIfModifiedAndUpdateHash() bool {
 }
 
 func (j *JSRequest) GetHeader(name, deflt string) string {
+	name = strings.ToLower(name)
 	headers := strings.Split(j.Headers, "\r\n")
 	for i := 0; i < len(headers); i++ {
 		if headers[i] != "" {
@@ -124,7 +125,7 @@ func (j *JSRequest) GetHeader(name, deflt string) string {
 			if len(header_parts) != 0 && len(header_parts[0]) == 3 {
 				header_name := string(header_parts[0][1])
 				header_value := string(header_parts[0][2])
-				if strings.ToLower(name) == strings.ToLower(header_name) {
+				if name == strings.ToLower(header_name) {
 					return header_value
 				}
 			}