feat(crypt): customize `filename_encoding` (#5148)

close #5109
close #5080

drivers/crypt/driver.go

@@ -54,6 +54,8 @@ func (d *Crypt) Init(ctx context.Context) error {
 	if !isCryptExt(d.EncryptedSuffix) {
 		return fmt.Errorf("EncryptedSuffix is Illegal")
 	}
+	d.FileNameEncoding = utils.GetNoneEmpty(d.FileNameEncoding, "base64")
+	d.EncryptedSuffix = utils.GetNoneEmpty(d.EncryptedSuffix, ".bin")
 
 	op.MustSaveDriverStorage(d)
 
@@ -71,7 +73,7 @@ func (d *Crypt) Init(ctx context.Context) error {
 		"password2":                 p2,
 		"filename_encryption":       d.FileNameEnc,
 		"directory_name_encryption": d.DirNameEnc,
-		"filename_encoding":         "base64",
+		"filename_encoding":         d.FileNameEncoding,
 		"suffix":                    d.EncryptedSuffix,
 		"pass_bad_blocks":           "",
 	}

drivers/crypt/meta.go

@@ -15,17 +15,12 @@ type Addition struct {
 	DirNameEnc  string `json:"directory_name_encryption" type:"select" required:"true" options:"false,true" default:"false"`
 	RemotePath  string `json:"remote_path" required:"true" help:"This is where the encrypted data stores"`
 
-	Password        string `json:"password" required:"true" confidential:"true" help:"the main password"`
+	Password         string `json:"password" required:"true" confidential:"true" help:"the main password"`
-	Salt            string `json:"salt" confidential:"true"  help:"If you don't know what is salt, treat it as a second password'. Optional but recommended"`
+	Salt             string `json:"salt" confidential:"true"  help:"If you don't know what is salt, treat it as a second password. Optional but recommended"`
-	EncryptedSuffix string `json:"encrypted_suffix" required:"true" default:".bin" help:"encrypted files will have this suffix"`
+	EncryptedSuffix  string `json:"encrypted_suffix" required:"true" default:".bin" help:"for advanced user only! encrypted files will have this suffix"`
+	FileNameEncoding string `json:"filename_encoding" type:"select" required:"true" options:"base64,base32,base32768" default:"base64" help:"for advanced user only!"`
 }
 
-/*// inMemory contains decrypted confidential info and other temp data. will not persist these info anywhere
-type inMemory struct {
-	password string
-	salt     string
-}*/
-
 var config = driver.Config{
 	Name:              "Crypt",
 	LocalSort:         true,

pkg/utils/str.go

@@ -30,3 +30,13 @@ func SafeAtob(data string) (string, error) {
 	}
 	return string(bytes), err
 }
+
+// GetNoneEmpty returns the first non-empty string, return empty if all empty
+func GetNoneEmpty(strArr ...string) string {
+	for _, s := range strArr {
+		if len(s) > 0 {
+			return s
+		}
+	}
+	return ""
+}