fix: jsoniter should register fuzzyDecoder

cmd/cmd.go

@@ -34,25 +34,25 @@ $ gg git clone https://github.com/mzz2017/gg.git`)
 			// validate command and get the fullPath from $PATH
 			fullPath, err := exec.LookPath(args[0])
 			if err != nil {
-				logrus.Fatal(err)
+				logrus.Fatal("exec.LookPath:", err)
 			}
 			// get dialer
 			dialer, err := GetDialer(log)
 			if err != nil {
-				logrus.Fatal(err)
+				logrus.Fatal("GetDialer:", err)
 			}
 
 			noUDP, err := cmd.Flags().GetBool("noudp")
 			if err != nil {
-				logrus.Fatal(err)
+				logrus.Fatal("GetBool(noudp):", err)
 			}
 			if !noUDP && !dialer.SupportUDP() {
 				log.Warn("Your proxy server does not support UDP, so we will not redirect UDP traffic.")
 				noUDP = true
 			}
 			preserveEnv, err := cmd.Flags().GetBool("preserve-env")
 			if err != nil {
-				logrus.Fatal(err)
+				logrus.Fatal("GetBool(preserve-env):", err)
 			}
 			var env []string
 			if preserveEnv {
@@ -67,11 +67,11 @@ $ gg git clone https://github.com/mzz2017/gg.git`)
 				log,
 			)
 			if err != nil {
-				logrus.Fatal(err)
+				logrus.Fatal("tracer.New:", err)
 			}
 			code, err := t.Wait()
 			if err != nil {
-				logrus.Fatal(err)
+				logrus.Fatal("tracer.Wait:", err)
 			}
 			os.Exit(code)
 		},

common/jsoniter.go

@@ -0,0 +1,27 @@
+package common
+
+import (
+	"encoding/json"
+	jsoniter "github.com/json-iterator/go"
+	"unsafe"
+)
+
+type FuzzyStringDecoder struct {
+}
+
+func (decoder *FuzzyStringDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+	valueType := iter.WhatIsNext()
+	switch valueType {
+	case jsoniter.NumberValue:
+		var number json.Number
+		iter.ReadVal(&number)
+		*((*string)(ptr)) = string(number)
+	case jsoniter.StringValue:
+		*((*string)(ptr)) = iter.ReadString()
+	case jsoniter.NilValue:
+		iter.Skip()
+		*((*string)(ptr)) = ""
+	default:
+		iter.ReportError("FuzzyStringDecoder", "not number or string")
+	}
+}

dialer/dialer.go

@@ -45,15 +45,15 @@ func (d *Dialer) Test(ctx context.Context) (bool, error) {
 	}
 	req, err := http.NewRequestWithContext(ctx, "GET", "https://fonts.gstatic.com/generate_204", nil)
 	if err != nil {
-		return false, fmt.Errorf("%w: %v", ConnectivityTestFailedErr, err)
+		return false, fmt.Errorf("%v: %w", ConnectivityTestFailedErr, err)
 	}
 	resp, err := cli.Do(req)
 	if err != nil {
 		var netErr net.Error
 		if errors.As(err, &netErr); netErr.Timeout() {
 			err = fmt.Errorf("timeout")
 		}
-		return false, fmt.Errorf("%w: %v", ConnectivityTestFailedErr, err)
+		return false, fmt.Errorf("%v: %w", ConnectivityTestFailedErr, err)
 	}
 	defer resp.Body.Close()
 	return resp.StatusCode == 204, nil

main.go

@@ -5,13 +5,16 @@ import (
 	_ "github.com/e14914c0-6759-480d-be89-66b7b7676451/BitterJohn/protocol/trojanc"
 	_ "github.com/e14914c0-6759-480d-be89-66b7b7676451/BitterJohn/protocol/vless"
 	_ "github.com/e14914c0-6759-480d-be89-66b7b7676451/BitterJohn/protocol/vmess"
+	"github.com/json-iterator/go/extra"
 	"github.com/mzz2017/gg/cmd"
 	"net/http"
 	"os"
 	"time"
 )
 
 func main() {
+	extra.RegisterFuzzyDecoders()
+
 	http.DefaultClient.Timeout = 30 * time.Second
 	if err := cmd.Execute(); err != nil {
 		os.Exit(1)