Fix test

common/protocol/http/sniff.go

@@ -80,7 +80,9 @@ func SniffHTTP(b []byte, c context.Context) (*SniffHeader, error) {
 		}
 		key := strings.ToLower(string(parts[0]))
 		value := string(bytes.TrimSpace(parts[1]))
-		content.SetAttribute(key, value) // Put header in attribute
+		if content != nil {
+			content.SetAttribute(key, value) // Put header in attribute
+		}
 		if key == "host" {
 			rawHost := strings.ToLower(value)
 			dest, err := ParseHost(rawHost, net.Port(80))
@@ -93,7 +95,7 @@ func SniffHTTP(b []byte, c context.Context) (*SniffHeader, error) {
 	// Parse request line
 	// Request line is like this
 	// "GET /homo/114514 HTTP/1.1"
-	if len(headers) > 0 {
+	if len(headers) > 0 && content != nil {
 		RequestLineParts := bytes.Split(headers[0], []byte{' '})
 		if len(RequestLineParts) == 3 {
 			content.SetAttribute(":method", string(RequestLineParts[0]))

common/protocol/http/sniff_test.go

@@ -1,6 +1,7 @@
 package http_test
 
 import (
+	"context"
 	"testing"
 
 	. "github.com/xtls/xray-core/common/protocol/http"
@@ -88,7 +89,7 @@ first_name=John&last_name=Doe&action=Submit`,
 	}
 
 	for _, test := range cases {
-		header, err := SniffHTTP([]byte(test.input))
+		header, err := SniffHTTP([]byte(test.input), context.TODO())
 		if test.err {
 			if err == nil {
 				t.Errorf("Expect error but nil, in test: %v", test)