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[Backport] Fix Deadlock & Delete affected reactions on comment deletion (#14392) (#14425) 

* Enhance Ghost comment mitigation Settings (#14392)

* refactor models.DeleteComment and delete related reactions too

* use deleteComment for UserDeleteWithCommentsMaxDays in DeleteUser

* Resolve Fixme & fix potential deadlock

* rm refactor

* make diff eaven less
This commit is contained in:
6543 2021-01-23 03:03:29 +01:00 committed by GitHub
parent fb274ec54b
commit 4d2a6c40f8
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 23 additions and 14 deletions
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2
models/admin.go
View File

@ -77,7 +77,7 @@ func removeStorageWithNotice(e Engine, bucket storage.ObjectStorage, title, path
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 = createNotice(x, NoticeRepository, desc); err != nil {
if err = createNotice(e, NoticeRepository, desc); err != nil {
log.Error("CreateRepositoryNotice: %v", err)
}
}

2
models/issue_assignees.go
View File

@ -82,7 +82,7 @@ func isUserAssignedToIssue(e Engine, issue *Issue, user *User) (isAssigned bool,
}
// ClearAssigneeByUserID deletes all assignments of an user
func clearAssigneeByUserID(sess *xorm.Session, userID int64) (err error) {
func clearAssigneeByUserID(sess Engine, userID int64) (err error) {
_, err = sess.Delete(&IssueAssignees{AssigneeID: userID})
return
}

4
models/issue_comment.go
View File

@ -1077,6 +1077,10 @@ func DeleteComment(comment *Comment, doer *User) error {
return err
}
if err := deleteReaction(sess, &ReactionOptions{Comment: comment}); err != nil {
return err
}
return sess.Commit()
}

10
models/issue_reaction.go
View File

@ -178,11 +178,15 @@ func CreateCommentReaction(doer *User, issue *Issue, comment *Comment, content s
})
}
func deleteReaction(e *xorm.Session, opts *ReactionOptions) error {
func deleteReaction(e Engine, opts *ReactionOptions) error {
reaction := &Reaction{
Type: opts.Type,
UserID: opts.Doer.ID,
IssueID: opts.Issue.ID,
}
if opts.Doer != nil {
reaction.UserID = opts.Doer.ID
}
if opts.Issue != nil {
reaction.IssueID = opts.Issue.ID
}
if opts.Comment != nil {
reaction.CommentID = opts.Comment.ID

17
models/user.go
View File

@ -40,7 +40,6 @@ import (
"golang.org/x/crypto/scrypt"
"golang.org/x/crypto/ssh"
"xorm.io/builder"
"xorm.io/xorm"
)
// UserType defines the user type
@ -1020,8 +1019,7 @@ func deleteBeans(e Engine, beans ...interface{}) (err error) {
return nil
}
// FIXME: need some kind of mechanism to record failure. HINT: system notice
func deleteUser(e *xorm.Session, u *User) error {
func deleteUser(e Engine, u *User) error {
// Note: A user owns any repository or belongs to any organization
// cannot perform delete operation.
@ -1135,18 +1133,21 @@ func deleteUser(e *xorm.Session, u *User) error {
return fmt.Errorf("Delete: %v", err)
}
// FIXME: system notice
// Note: There are something just cannot be roll back,
// so just keep error logs of those operations.
path := UserPath(u.Name)
if err := util.RemoveAll(path); err != nil {
return fmt.Errorf("Failed to RemoveAll %s: %v", path, err)
if err = util.RemoveAll(path); err != nil {
err = fmt.Errorf("Failed to RemoveAll %s: %v", path, err)
_ = createNotice(e, NoticeTask, fmt.Sprintf("delete user '%s': %v", u.Name, err))
return err
}
if len(u.Avatar) > 0 {
avatarPath := u.CustomAvatarRelativePath()
if err := storage.Avatars.Delete(avatarPath); err != nil {
return fmt.Errorf("Failed to remove %s: %v", avatarPath, err)
if err = storage.Avatars.Delete(avatarPath); err != nil {
err = fmt.Errorf("Failed to remove %s: %v", avatarPath, err)
_ = createNotice(e, NoticeTask, fmt.Sprintf("delete user '%s': %v", u.Name, err))
return err
}
}