fix build break

proxy/shadowsocks/config_json.go

@@ -4,43 +4,43 @@ package shadowsocks
 
 import (
 	"encoding/json"
-  
-  "github.com/v2ray/v2ray-core/common/log"
-  "github.com/v2ray/v2ray-core/common/serial"
-  "github.com/v2ray/v2ray-core/proxy/internal"
+
+	"github.com/v2ray/v2ray-core/common/log"
+	"github.com/v2ray/v2ray-core/common/serial"
+	"github.com/v2ray/v2ray-core/proxy/internal"
 )
 
 func (this *Config) UnmarshalJSON(data []byte) error {
 	type JsonConfig struct {
-		Cipher   *serial.StringLiteral `json:"method"`
-		Password *serial.StringLiteral `json:"password"`
+		Cipher   serial.StringLiteral `json:"method"`
+		Password serial.StringLiteral `json:"password"`
 	}
 	jsonConfig := new(JsonConfig)
 	if err := json.Unmarshal(data, jsonConfig); err != nil {
 		return err
 	}
-  if this.Password == nil {
-    log.Error("Shadowsocks: Password is not specified.")
-    return internal.ErrorBadConfiguration
-  }
-  this.Password = jsonConfig.Password.String()
-  if this.Cipher == nil {
-    log.Error("Shadowsocks: Cipher method is not specified.")
-    return internal.ErrorBadConfiguration
-  }
-  jsonConfig.Cipher = jsonConfig.Cipher.ToLower()
-  switch jsonConfig.Cipher.String() {
-    case "aes-256-cfb":
-    this.Cipher = &AesCfb {
-      KeyBytes: 32
-    }
-    case "aes-128-cfb":
-    this.Cipher = &AesCfb {
-      KeyBytes: 32
-    }
-    default:
-    log.Error("Shadowsocks: Unknown cipher method: ", jsonConfig.Cipher)
-    return internal.ErrorBadConfiguration
-  }
-  return nil
+	if len(jsonConfig.Password) == 0 {
+		log.Error("Shadowsocks: Password is not specified.")
+		return internal.ErrorBadConfiguration
+	}
+	this.Password = jsonConfig.Password.String()
+	if this.Cipher == nil {
+		log.Error("Shadowsocks: Cipher method is not specified.")
+		return internal.ErrorBadConfiguration
+	}
+	jsonConfig.Cipher = jsonConfig.Cipher.ToLower()
+	switch jsonConfig.Cipher.String() {
+	case "aes-256-cfb":
+		this.Cipher = &AesCfb{
+			KeyBytes: 32,
+		}
+	case "aes-128-cfb":
+		this.Cipher = &AesCfb{
+			KeyBytes: 32,
+		}
+	default:
+		log.Error("Shadowsocks: Unknown cipher method: ", jsonConfig.Cipher)
+		return internal.ErrorBadConfiguration
+	}
+	return nil
 }