1 files changed, 128 insertions, 0 deletions
diff --git a/models/system/notice.go b/models/system/notice.go
new file mode 100644
index 0000000..e7ec6a9
--- /dev/null
+++ b/models/system/notice.go
@@ -0,0 +1,128 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package system
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"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(ctx context.Context, tp NoticeType, desc string, args ...any) 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 ...any) error {
+	// Note we use the db.DefaultContext here rather than passing in a context as the context may be cancelled
+	return CreateNotice(db.DefaultContext, NoticeRepository, desc, args...)
+}
+
+// RemoveAllWithNotice removes all directories in given path and
+// creates a system notice when error occurs.
+func RemoveAllWithNotice(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)
+		// Note we use the db.DefaultContext here rather than passing in a context as the context may be cancelled
+		if err = CreateNotice(db.DefaultContext, NoticeRepository, desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+	}
+}
+
+// RemoveStorageWithNotice removes a file from the storage and
+// creates a system notice when error occurs.
+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)
+
+		// Note we use the db.DefaultContext here rather than passing in a context as the context may be cancelled
+		if err = CreateNotice(db.DefaultContext, NoticeRepository, desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+	}
+}
+
+// CountNotices returns number of notices.
+func CountNotices(ctx context.Context) int64 {
+	count, _ := db.GetEngine(ctx).Count(new(Notice))
+	return count
+}
+
+// Notices returns notices in given page.
+func Notices(ctx context.Context, page, pageSize int) ([]*Notice, error) {
+	notices := make([]*Notice, 0, pageSize)
+	return notices, db.GetEngine(ctx).
+		Limit(pageSize, (page-1)*pageSize).
+		Desc("created_unix").
+		Find(&notices)
+}
+
+// DeleteNotices deletes all notices with ID from start to end (inclusive).
+func DeleteNotices(ctx context.Context, start, end int64) error {
+	if start == 0 && end == 0 {
+		_, err := db.GetEngine(ctx).Exec("DELETE FROM notice")
+		return err
+	}
+
+	sess := db.GetEngine(ctx).Where("id >= ?", start)
+	if end > 0 {
+		sess.And("id <= ?", end)
+	}
+	_, err := sess.Delete(new(Notice))
+	return err
+}
+
+// DeleteOldSystemNotices deletes all old system notices from database.
+func DeleteOldSystemNotices(ctx context.Context, olderThan time.Duration) (err error) {
+	if olderThan <= 0 {
+		return nil
+	}
+
+	_, err = db.GetEngine(ctx).Where("created_unix < ?", time.Now().Add(-olderThan).Unix()).Delete(&Notice{})
+	return err
+}