Add binding form for register user

modules/auth/form.go

@@ -0,0 +1,111 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package auth
+
+import (
+	"net/http"
+	"reflect"
+
+	"github.com/codegangsta/martini"
+
+	"github.com/gogits/binding"
+
+	"github.com/gogits/gogs/modules/base"
+	"github.com/gogits/gogs/utils/log"
+)
+
+type RegisterForm struct {
+	UserName string `form:"username" binding:"Required;AlphaDash;MinSize(5);MaxSize(30)"`
+	Email    string `form:"email" binding:"Required;Email;MaxSize(50)"`
+	Password string `form:"passwd" binding:"Required;MinSize(6);MaxSize(30)"`
+}
+
+func (r *RegisterForm) Validate(errors *binding.Errors, req *http.Request, context martini.Context) {
+	if req.Method == "GET" || errors.Count() == 0 {
+		return
+	}
+
+	data := context.Get(reflect.TypeOf(base.TmplData{})).Interface().(base.TmplData)
+	data["HasError"] = true
+	AssignForm(r, data)
+
+	if len(errors.Overall) > 0 {
+		for _, err := range errors.Overall {
+			log.Error("RegisterForm.Validate: %v", err)
+		}
+		return
+	}
+
+	if err, ok := errors.Fields["UserName"]; ok {
+		data["Err_Username"] = true
+		switch err {
+		case binding.RequireError:
+			data["ErrorMsg"] = "Username cannot be empty"
+		case binding.AlphaDashError:
+			data["ErrorMsg"] = "Username must be valid alpha or numeric or dash(-_) characters"
+		case binding.MinSizeError:
+			data["ErrorMsg"] = "Username at least has 5 characters"
+		case binding.MaxSizeError:
+			data["ErrorMsg"] = "Username at most has 30 characters"
+		default:
+			data["ErrorMsg"] = "Unknown error: " + err
+		}
+		return
+	}
+
+	if err, ok := errors.Fields["Email"]; ok {
+		data["Err_Email"] = true
+		switch err {
+		case binding.RequireError:
+			data["ErrorMsg"] = "E-mail address cannot be empty"
+		case binding.EmailError:
+			data["ErrorMsg"] = "E-mail address is not valid"
+		case binding.MaxSizeError:
+			data["ErrorMsg"] = "E-mail address at most has 50 characters"
+		default:
+			data["ErrorMsg"] = "Unknown error: " + err
+		}
+		return
+	}
+
+	if err, ok := errors.Fields["Password"]; ok {
+		data["Err_Passwd"] = true
+		switch err {
+		case binding.RequireError:
+			data["ErrorMsg"] = "Password cannot be empty"
+		case binding.MinSizeError:
+			data["ErrorMsg"] = "Password at least has 6 characters"
+		case binding.MaxSizeError:
+			data["ErrorMsg"] = "Password at most has 30 characters"
+		default:
+			data["ErrorMsg"] = "Unknown error: " + err
+		}
+		return
+	}
+
+}
+
+// AssignForm assign form values back to the template data.
+func AssignForm(form interface{}, data base.TmplData) {
+	typ := reflect.TypeOf(form)
+	val := reflect.ValueOf(form)
+
+	if typ.Kind() == reflect.Ptr {
+		typ = typ.Elem()
+		val = val.Elem()
+	}
+
+	for i := 0; i < typ.NumField(); i++ {
+		field := typ.Field(i)
+
+		fieldName := field.Tag.Get("form")
+		// Allow ignored fields in the struct
+		if fieldName == "-" {
+			continue
+		}
+
+		data[fieldName] = val.Field(i).Interface()
+	}
+}