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/notice.go

@@ -0,0 +1,79 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 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 admin
+
+import (
+	"net/http"
+	"strconv"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+const (
+	tplNotices base.TplName = "admin/notice"
+)
+
+// Notices show notices for admin
+func Notices(ctx *context.Context) {
+	ctx.Data["Title"] = ctx.Tr("admin.notices")
+	ctx.Data["PageIsAdmin"] = true
+	ctx.Data["PageIsAdminNotices"] = true
+
+	total := models.CountNotices()
+	page := ctx.QueryInt("page")
+	if page <= 1 {
+		page = 1
+	}
+
+	notices, err := models.Notices(page, setting.UI.Admin.NoticePagingNum)
+	if err != nil {
+		ctx.ServerError("Notices", err)
+		return
+	}
+	ctx.Data["Notices"] = notices
+
+	ctx.Data["Total"] = total
+
+	ctx.Data["Page"] = context.NewPagination(int(total), setting.UI.Admin.NoticePagingNum, page, 5)
+
+	ctx.HTML(http.StatusOK, tplNotices)
+}
+
+// DeleteNotices delete the specific notices
+func DeleteNotices(ctx *context.Context) {
+	strs := ctx.QueryStrings("ids[]")
+	ids := make([]int64, 0, len(strs))
+	for i := range strs {
+		id, _ := strconv.ParseInt(strs[i], 10, 64)
+		if id > 0 {
+			ids = append(ids, id)
+		}
+	}
+
+	if err := models.DeleteNoticesByIDs(ids); err != nil {
+		ctx.Flash.Error("DeleteNoticesByIDs: " + err.Error())
+		ctx.Status(500)
+	} else {
+		ctx.Flash.Success(ctx.Tr("admin.notices.delete_success"))
+		ctx.Status(200)
+	}
+}
+
+// EmptyNotices delete all the notices
+func EmptyNotices(ctx *context.Context) {
+	if err := models.DeleteNotices(0, 0); err != nil {
+		ctx.ServerError("DeleteNotices", err)
+		return
+	}
+
+	log.Trace("System notices deleted by admin (%s): [start: %d]", ctx.User.Name, 0)
+	ctx.Flash.Success(ctx.Tr("admin.notices.delete_success"))
+	ctx.Redirect(setting.AppSubURL + "/admin/notices")
+}