Refactor routers directory (#15800)

* refactor routers directory

* move func used for web and api to common

* make corsHandler a function to prohibit side efects

* rm unused func

Co-authored-by: 6543 <6543@obermui.de>

routers/web/admin/orgs.go

@@ -0,0 +1,34 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2020 The Gitea Authors.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package admin
+
+import (
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/routers/web/explore"
+)
+
+const (
+	tplOrgs base.TplName = "admin/org/list"
+)
+
+// Organizations show all the organizations
+func Organizations(ctx *context.Context) {
+	ctx.Data["Title"] = ctx.Tr("admin.organizations")
+	ctx.Data["PageIsAdmin"] = true
+	ctx.Data["PageIsAdminOrganizations"] = true
+
+	explore.RenderUserSearch(ctx, &models.SearchUserOptions{
+		Type: models.UserTypeOrganization,
+		ListOptions: models.ListOptions{
+			PageSize: setting.UI.Admin.OrgPagingNum,
+		},
+		Visible: []structs.VisibleType{structs.VisibleTypePublic, structs.VisibleTypeLimited, structs.VisibleTypePrivate},
+	}, tplOrgs)
+}