Move modules/forms to services/forms (#15305)

Forms are dependent on models and therefore should be in services.

This PR also removes the old auth. aliasing

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

services/forms/user_form_auth_openid.go

@@ -0,0 +1,51 @@
+// Copyright 2017 The Gitea 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 forms
+
+import (
+	"net/http"
+
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/web/middleware"
+	"gitea.com/go-chi/binding"
+)
+
+// SignInOpenIDForm form for signing in with OpenID
+type SignInOpenIDForm struct {
+	Openid   string `binding:"Required;MaxSize(256)"`
+	Remember bool
+}
+
+// Validate validates the fields
+func (f *SignInOpenIDForm) Validate(req *http.Request, errs binding.Errors) binding.Errors {
+	ctx := context.GetContext(req)
+	return middleware.Validate(errs, ctx.Data, f, ctx.Locale)
+}
+
+// SignUpOpenIDForm form for signin up with OpenID
+type SignUpOpenIDForm struct {
+	UserName           string `binding:"Required;AlphaDashDot;MaxSize(40)"`
+	Email              string `binding:"Required;Email;MaxSize(254)"`
+	GRecaptchaResponse string `form:"g-recaptcha-response"`
+	HcaptchaResponse   string `form:"h-captcha-response"`
+}
+
+// Validate validates the fields
+func (f *SignUpOpenIDForm) Validate(req *http.Request, errs binding.Errors) binding.Errors {
+	ctx := context.GetContext(req)
+	return middleware.Validate(errs, ctx.Data, f, ctx.Locale)
+}
+
+// ConnectOpenIDForm form for connecting an existing account to an OpenID URI
+type ConnectOpenIDForm struct {
+	UserName string `binding:"Required;MaxSize(254)"`
+	Password string `binding:"Required;MaxSize(255)"`
+}
+
+// Validate validates the fields
+func (f *ConnectOpenIDForm) Validate(req *http.Request, errs binding.Errors) binding.Errors {
+	ctx := context.GetContext(req)
+	return middleware.Validate(errs, ctx.Data, f, ctx.Locale)
+}