massive refactoring against json config parsing

proxy/dokodemo/config_json.go

@@ -0,0 +1,33 @@
+// +build json
+
+package dokodemo
+
+import (
+	"encoding/json"
+
+	v2net "github.com/v2ray/v2ray-core/common/net"
+	v2netjson "github.com/v2ray/v2ray-core/common/net/json"
+	"github.com/v2ray/v2ray-core/proxy/internal/config"
+)
+
+func init() {
+	config.RegisterInboundConnectionConfig("dokodemo-door",
+		func(data []byte) (interface{}, error) {
+			type DokodemoConfig struct {
+				Host         *v2netjson.Host        `json:"address"`
+				PortValue    v2net.Port             `json:"port"`
+				NetworkList  *v2netjson.NetworkList `json:"network"`
+				TimeoutValue int                    `json:"timeout"`
+			}
+			rawConfig := new(DokodemoConfig)
+			if err := json.Unmarshal(data, rawConfig); err != nil {
+				return nil, err
+			}
+			return &Config{
+				Address: rawConfig.Host.Address(),
+				Port:    rawConfig.PortValue,
+				Network: rawConfig.NetworkList,
+				Timeout: rawConfig.TimeoutValue,
+			}, nil
+		})
+}