1 files changed, 146 insertions, 0 deletions
diff --git a/models/admin/notice.go b/models/admin/notice.go
new file mode 100644
index 0000000000..c41e49ed8c
--- /dev/null
+++ b/models/admin/notice.go
@@ -0,0 +1,146 @@
+// Copyright 2021 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 (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/storage"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// NoticeType describes the notice type
+type NoticeType int
+
+const (
+	// NoticeRepository type
+	NoticeRepository NoticeType = iota + 1
+	// NoticeTask type
+	NoticeTask
+)
+
+// Notice represents a system notice for admin.
+type Notice struct {
+	ID          int64 `xorm:"pk autoincr"`
+	Type        NoticeType
+	Description string             `xorm:"TEXT"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+}
+
+func init() {
+	db.RegisterModel(new(Notice))
+}
+
+// TrStr returns a translation format string.
+func (n *Notice) TrStr() string {
+	return fmt.Sprintf("admin.notices.type_%d", n.Type)
+}
+
+// CreateNotice creates new system notice.
+func CreateNotice(tp NoticeType, desc string, args ...interface{}) error {
+	return CreateNoticeCtx(db.DefaultContext, tp, desc, args...)
+}
+
+// CreateNoticeCtx creates new system notice.
+func CreateNoticeCtx(ctx context.Context, tp NoticeType, desc string, args ...interface{}) error {
+	if len(args) > 0 {
+		desc = fmt.Sprintf(desc, args...)
+	}
+	n := &Notice{
+		Type:        tp,
+		Description: desc,
+	}
+	return db.Insert(ctx, n)
+}
+
+// CreateRepositoryNotice creates new system notice with type NoticeRepository.
+func CreateRepositoryNotice(desc string, args ...interface{}) error {
+	return CreateNoticeCtx(db.DefaultContext, NoticeRepository, desc, args...)
+}
+
+// RemoveAllWithNotice removes all directories in given path and
+// creates a system notice when error occurs.
+func RemoveAllWithNotice(title, path string) {
+	RemoveAllWithNoticeCtx(db.DefaultContext, title, path)
+}
+
+// RemoveStorageWithNotice removes a file from the storage and
+// creates a system notice when error occurs.
+func RemoveStorageWithNotice(bucket storage.ObjectStorage, title, path string) {
+	removeStorageWithNotice(db.DefaultContext, bucket, title, path)
+}
+
+func removeStorageWithNotice(ctx context.Context, bucket storage.ObjectStorage, title, path string) {
+	if err := bucket.Delete(path); err != nil {
+		desc := fmt.Sprintf("%s [%s]: %v", title, path, err)
+		log.Warn(title+" [%s]: %v", path, err)
+		if err = CreateNoticeCtx(ctx, NoticeRepository, desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+	}
+}
+
+// RemoveAllWithNoticeCtx removes all directories in given path and
+// creates a system notice when error occurs.
+func RemoveAllWithNoticeCtx(ctx context.Context, title, path string) {
+	if err := util.RemoveAll(path); err != nil {
+		desc := fmt.Sprintf("%s [%s]: %v", title, path, err)
+		log.Warn(title+" [%s]: %v", path, err)
+		if err = CreateNoticeCtx(ctx, NoticeRepository, desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+	}
+}
+
+// CountNotices returns number of notices.
+func CountNotices() int64 {
+	count, _ := db.GetEngine(db.DefaultContext).Count(new(Notice))
+	return count
+}
+
+// Notices returns notices in given page.
+func Notices(page, pageSize int) ([]*Notice, error) {
+	notices := make([]*Notice, 0, pageSize)
+	return notices, db.GetEngine(db.DefaultContext).
+		Limit(pageSize, (page-1)*pageSize).
+		Desc("created_unix").
+		Find(&notices)
+}
+
+// DeleteNotice deletes a system notice by given ID.
+func DeleteNotice(id int64) error {
+	_, err := db.GetEngine(db.DefaultContext).ID(id).Delete(new(Notice))
+	return err
+}
+
+// DeleteNotices deletes all notices with ID from start to end (inclusive).
+func DeleteNotices(start, end int64) error {
+	if start == 0 && end == 0 {
+		_, err := db.GetEngine(db.DefaultContext).Exec("DELETE FROM notice")
+		return err
+	}
+
+	sess := db.GetEngine(db.DefaultContext).Where("id >= ?", start)
+	if end > 0 {
+		sess.And("id <= ?", end)
+	}
+	_, err := sess.Delete(new(Notice))
+	return err
+}
+
+// DeleteNoticesByIDs deletes notices by given IDs.
+func DeleteNoticesByIDs(ids []int64) error {
+	if len(ids) == 0 {
+		return nil
+	}
+	_, err := db.GetEngine(db.DefaultContext).
+		In("id", ids).
+		Delete(new(Notice))
+	return err
+}