From 1e060c9ab361c3e263ade008ad7e50ccfd3ad1b3 Mon Sep 17 00:00:00 2001
From: Sonya <sonyacore@protonmail.com>
Date: Wed, 12 Apr 2023 20:58:34 +0330
Subject: [PATCH] fixed zombie process leak revert config & result dir to
 current executable binary

---
 golang/configuration/config.go |  4 ++--
 golang/main.go                 |  2 +-
 golang/scanner/scanner.go      | 32 +++++++++++++++++++++-----------
 golang/speedtest/fronting.go   |  8 +++++++-
 4 files changed, 31 insertions(+), 15 deletions(-)

diff --git a/golang/configuration/config.go b/golang/configuration/config.go
index 0caead48..ef98f97d 100644
--- a/golang/configuration/config.go
+++ b/golang/configuration/config.go
@@ -15,8 +15,8 @@ import (
 var (
 	PROGRAMDIR             = filepath.Dir(os.Args[0])
 	BIN                    = filepath.Join(PROGRAMDIR, "..", "bin", "v2ray")
-	DIR                    = filepath.Join(PROGRAMDIR, "..", "config")
-	RESULTDIR              = filepath.Join(PROGRAMDIR, "..", "result")
+	DIR                    = filepath.Join(PROGRAMDIR, "config")
+	RESULTDIR              = filepath.Join(PROGRAMDIR, "result")
 	StartDtStr             = time.Now().Format("2006-01-02_15:04:05")
 	CSVInterimResultsPath  = filepath.Join(RESULTDIR, StartDtStr+"_result.csv")
 	JSONInterimResultsPath = filepath.Join(RESULTDIR, StartDtStr+"_result.json")
diff --git a/golang/main.go b/golang/main.go
index 3b21e38f..6f1a1d68 100644
--- a/golang/main.go
+++ b/golang/main.go
@@ -9,7 +9,7 @@ import (
 
 // Program Info
 var (
-	version  = "1.4"
+	version  = "1.5"
 	build    = "Custom"
 	codename = "CFScanner , CloudFlare Scanner."
 )
diff --git a/golang/scanner/scanner.go b/golang/scanner/scanner.go
index 0995dffb..7a15fbd5 100644
--- a/golang/scanner/scanner.go
+++ b/golang/scanner/scanner.go
@@ -15,6 +15,7 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"syscall"
 	"time"
 )
 
@@ -46,7 +47,6 @@ var (
 )
 
 // const WorkerCount = 48
-
 func scanner(ip string, C config.Configuration, Worker config.Worker) *Result {
 
 	result := &Result{
@@ -64,29 +64,37 @@ func scanner(ip string, C config.Configuration, Worker config.Worker) *Result {
 		var err error
 		process, proxies, err = v2raysvc.StartV2RayService(v2rayConfigPath, time.Duration(Worker.StartProcessTimeout))
 		if err != nil {
-			log.Printf("%vERROR - %vCould not start v2ray service%v\n",
+			log.Printf("%vERROR - %vCould not start vpn service%v\n",
 				utils.Colors.FAIL, utils.Colors.WARNING, utils.Colors.ENDC)
 			log.Fatal(err)
 			return nil
 		}
 
-		defer func(Process *os.Process) {
-			err := Process.Kill()
-			if err != nil {
-				_ = fmt.Errorf("could not kill the process %v", process.Process.Pid)
-			}
-		}(process.Process)
 		defer func() {
-			if r := recover(); r != nil {
-				log.Printf("%sFAIL %v%15s Panic: %v%v\n", utils.Colors.FAIL, utils.Colors.WARNING, ip, r, utils.Colors.ENDC)
+			if process != nil && process.Process != nil {
+				// terminate process
+				err = process.Process.Kill()
+				if err != nil {
+					log.Printf("%vERROR - %vFailed to kill process%v\n",
+						utils.Colors.FAIL, utils.Colors.WARNING, utils.Colors.ENDC)
+				}
+
+				// using Wait for clean up zombie process after Kill func
+				process.Process.Signal(syscall.SIGCHLD)
+				_, err := process.Process.Wait()
+				if err != nil {
+					log.Printf("%vERROR - %vFailed to wait for process to exit%v\n",
+						utils.Colors.FAIL, utils.Colors.WARNING, utils.Colors.ENDC)
+				}
 			}
 		}()
 	}
 
 	for tryIdx := 0; tryIdx < C.Config.NTries; tryIdx++ {
 		// Fronting test
+
 		if C.Config.DoFrontingTest {
-			fronting := speedtest.FrontingTest(ip, time.Duration(C.Config.FrontingTimeout))
+			fronting := speedtest.FrontingTest(ip, proxies, time.Duration(C.Config.FrontingTimeout))
 
 			if !fronting {
 				return nil
@@ -114,6 +122,7 @@ func scanner(ip string, C config.Configuration, Worker config.Worker) *Result {
 
 	return result
 }
+
 func uploader(ip string, Upload *config.Upload, proxies map[string]string, result *Result) (*Result, bool) {
 	var err error
 	nBytes := Upload.MinUlSpeed * 1000 * Upload.MaxUlTime
@@ -180,6 +189,7 @@ func downloader(ip string, Download *config.Download, proxies map[string]string,
 
 func scan(C *config.Configuration, worker *config.Worker, ip string) {
 	res := scanner(ip, *C, *worker)
+
 	if res == nil {
 		return
 	}
diff --git a/golang/speedtest/fronting.go b/golang/speedtest/fronting.go
index 27a92be2..68498e94 100644
--- a/golang/speedtest/fronting.go
+++ b/golang/speedtest/fronting.go
@@ -13,7 +13,7 @@ import (
 )
 
 // FrontingTest conducts a fronting test on an ip and return true if status 200 is received
-func FrontingTest(ip string, timeout time.Duration) bool {
+func FrontingTest(ip string, proxies map[string]string, timeout time.Duration) bool {
 
 	var success = false
 
@@ -30,6 +30,12 @@ func FrontingTest(ip string, timeout time.Duration) bool {
 		return false
 	}
 	req.Host = "speed.cloudflare.com"
+
+	// set proxies to req header
+	for k, v := range proxies {
+		req.Header.Set(k, v)
+	}
+
 	client := &http.Client{
 		Timeout: timeout * time.Second,
 		Transport: &http.Transport{