update profile api (#16)

* update profile api

* rename

* fix realip assertion

* add waf api

model/user.go

@@ -5,3 +5,8 @@ type User struct {
 	Username string `json:"username,omitempty" gorm:"uniqueIndex"`
 	Password string `json:"password,omitempty" gorm:"type:char(72)"`
 }
+
+type Profile struct {
+	User
+	LoginIP string `json:"login_ip,omitempty"`
+}