perf(189pc): empty file upload and cache optimization (#4913)

- login captcha error
- cache optimization
- upload empty file

drivers/189pc/help.go

@@ -10,6 +10,7 @@ import (
 	"crypto/x509"
 	"encoding/hex"
 	"encoding/pem"
+	"encoding/xml"
 	"fmt"
 	"math"
 	"net/http"
@@ -83,6 +84,55 @@ func MustParseTime(str string) *time.Time {
 	return &lastOpTime
 }
 
+type Time time.Time
+
+func (t *Time) UnmarshalJSON(b []byte) error { return t.Unmarshal(b) }
+func (t *Time) UnmarshalXML(e *xml.Decoder, ee xml.StartElement) error {
+	b, err := e.Token()
+	if err != nil {
+		return err
+	}
+	if b, ok := b.(xml.CharData); ok {
+		if err = t.Unmarshal(b); err != nil {
+			return err
+		}
+	}
+	return e.Skip()
+}
+func (t *Time) Unmarshal(b []byte) error {
+	bs := strings.Trim(string(b), "\"")
+	var v time.Time
+	var err error
+	for _, f := range []string{"2006-01-02 15:04:05 -07", "Jan 2, 2006 15:04:05 PM -07"} {
+		v, err = time.ParseInLocation(f, bs+" +08", time.Local)
+		if err == nil {
+			break
+		}
+	}
+	*t = Time(v)
+	return err
+}
+
+type String string
+
+func (t *String) UnmarshalJSON(b []byte) error { return t.Unmarshal(b) }
+func (t *String) UnmarshalXML(e *xml.Decoder, ee xml.StartElement) error {
+	b, err := e.Token()
+	if err != nil {
+		return err
+	}
+	if b, ok := b.(xml.CharData); ok {
+		if err = t.Unmarshal(b); err != nil {
+			return err
+		}
+	}
+	return e.Skip()
+}
+func (s *String) Unmarshal(b []byte) error {
+	*s = String(bytes.Trim(b, "\""))
+	return nil
+}
+
 func toFamilyOrderBy(o string) string {
 	switch o {
 	case "filename":
@@ -122,10 +172,6 @@ func MustString(str string, err error) string {
 	return str
 }
 
-func MustToBytes(b []byte, err error) []byte {
-	return b
-}
-
 func BoolToNumber(b bool) int {
 	if b {
 		return 1