successfully run tests

go.mod

@@ -14,6 +14,7 @@ require (
 	github.com/dop251/goja v0.0.0-20231027120936-b396bb4c349d
 	github.com/dop251/goja_nodejs v0.0.0-20231122114759-e84d9a924c5c
 	github.com/fatih/color v1.16.0
+	github.com/felixge/tcpkeepalive v0.0.0-20220224101934-f56176a53a1b
 	github.com/google/go-cmp v0.6.0
 	github.com/google/gopacket v1.1.19
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510

go.sum

@@ -130,6 +130,8 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
 github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
+github.com/felixge/tcpkeepalive v0.0.0-20220224101934-f56176a53a1b h1:h2X1tswmsRG8D1eeDgkf18NYsQkmxK1G6P4uL3QZGIc=
+github.com/felixge/tcpkeepalive v0.0.0-20220224101934-f56176a53a1b/go.mod h1:z0yk3Pix6k848RFizhkU4uY36ts5pB1t3toBwudGbBo=
 github.com/florianl/go-nfqueue v1.1.1-0.20200829120558-a2f196e98ab0 h1:7ZJyJV4KiWBijCCzUPvVaqxsDxO36+KD0XKBdEN3I+8=
 github.com/flynn/noise v1.0.1 h1:vPp/jdQLXC6ppsXSj/pM3W1BIJ5FEHE2TulSJBpb43Y=
 github.com/flynn/noise v1.0.1/go.mod h1:xbMo+0i6+IGbYdJhF31t2eR1BIU0CYc12+BNAKwUTag=

internal/netxlite/httpproxy.go

@@ -13,6 +13,18 @@ import (
 	"time"
 )
 
+var (
+	// DefaultKeepAliveIdleTime specifies how long connection can be idle
+	// before sending keepalive message.
+	DefaultKeepAliveIdleTime = 15 * time.Minute
+	// DefaultKeepAliveCount specifies maximal number of keepalive messages
+	// sent before marking connection as dead.
+	DefaultKeepAliveCount = 8
+	// DefaultKeepAliveInterval specifies how often retry sending keepalive
+	// messages when no response is received.
+	DefaultKeepAliveInterval = 5 * time.Second
+)
+
 // A HttpDialer holds HTTP-specific options
 // Specifically for HTTP proxy, we build an HTTP tunnel
 type HttpDialer struct {