bugfix: Error unknown flag gobin (fixes #354 )

cli/cmd/gotls.go

@@ -34,12 +34,12 @@ var goc = config.NewGoTLSConfig()
 var gotlsCmd = &cobra.Command{
 	Use:     "gotls",
 	Aliases: []string{"tlsgo"},
-	Short:   "capturing plaintext communication of TLS/HTTPS encrypted programs written in Golang.",
-	Long: `use eBPF uprobe/TC to capture process event data and network data. also support pcap-NG format.
+	Short:   "Capturing plaintext communication from Golang programs encrypted with TLS/HTTPS.",
+	Long: `Utilize eBPF uprobe/TC to capture both process event and network data, with added support for pcap-NG format.
 ecapture gotls
 ecapture gotls --elfpath=/home/cfc4n/go_https_client --hex --pid=3423
 ecapture gotls --elfpath=/home/cfc4n/go_https_client -l save.log --pid=3423
-ecapture gotls -w save_android.pcapng -i wlan0 --port 443 --gobin=/home/cfc4n/go_https_client
+ecapture gotls -w save_android.pcapng -i wlan0 --port 443 --elfpath=/home/cfc4n/go_https_client
 `,
 	Run: goTLSCommandFunc,
 }
@@ -100,8 +100,8 @@ func goTLSCommandFunc(command *cobra.Command, args []string) {
 	err = conf.Check()
 
 	if err != nil {
-		// ErrorGoBINNotSET is a special error, we should not print it.
-		if errors.Is(err, config.ErrorGoBINNotSET) {
+		// ErrorGoBINNotFound is a special error, we should not print it.
+		if errors.Is(err, config.ErrorGoBINNotFound) {
 			logger.Printf("%s\tmodule [disabled].", mod.Name())
 			return
 		}

cli/cmd/tls.go

@@ -19,7 +19,6 @@ import (
 	"ecapture/pkg/util/kernel"
 	"ecapture/user/config"
 	"ecapture/user/module"
-	"errors"
 	"log"
 	"os"
 	"os/signal"
@@ -136,12 +135,6 @@ func openSSLCommandFunc(command *cobra.Command, args []string) {
 		err = conf.Check()
 
 		if err != nil {
-			// ErrorGoBINNotSET is a special error, we should not print it.
-			if errors.Is(err, config.ErrorGoBINNotSET) {
-				logger.Printf("%s\tmodule [disabled].", mod.Name())
-				continue
-			}
-
 			logger.Printf("%s\tmodule initialization failed. [skip it]. error:%+v", mod.Name(), err)
 			continue
 		}

tests/golang_https.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"crypto/tls"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+)
+
+func main() {
+
+	b, e := GetHttp("https://github.com")
+	if e == nil {
+		fmt.Printf("response body: %s\n\n", b)
+	} else {
+		fmt.Printf("error :%v", e)
+	}
+}
+
+func GetHttp(url string) (body []byte, err error) {
+	f, err := os.OpenFile(filepath.Join(os.TempDir(), "ecapture_go_master_secret.log"), os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+	c := &http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{InsecureSkipVerify: true, KeyLogWriter: f},
+		}}
+	resp, e := c.Get(url)
+	if e != nil {
+		return nil, e
+	}
+
+	defer resp.Body.Close()
+	body, err = io.ReadAll(resp.Body)
+	return body, err
+}

user/config/config_gotls.go

@@ -20,7 +20,7 @@ import (
 )
 
 var (
-	ErrorGoBINNotSET = errors.New("GO binary not set")
+	ErrorGoBINNotFound = errors.New("GO binary not found")
 )
 
 // GoTLSConfig represents configuration for Go SSL probe
@@ -39,7 +39,7 @@ func NewGoTLSConfig() *GoTLSConfig {
 
 func (c *GoTLSConfig) Check() error {
 	if c.Path == "" {
-		return ErrorGoBINNotSET
+		return ErrorGoBINNotFound
 	}
 
 	if c.Ifname == "" || len(c.Ifname) == 0 {