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When transfering repository and database transaction failed, rollback the renames (#14864) #14902

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Merged
merged 1 commit into from
Mar 6, 2021
Merged

When transfering repository and database transaction failed, rollback the renames (#14864) #14902

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48 changes: 42 additions & 6 deletions models/repo.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1290,11 +1290,44 @@ func IncrementRepoForkNum(ctx DBContext, repoID int64) error {
}

// TransferOwnership transfers all corresponding setting from old user to new one.
func TransferOwnership(doer *User, newOwnerName string, repo *Repository) error {
func TransferOwnership(doer *User, newOwnerName string, repo *Repository) (err error) {
repoRenamed := false
wikiRenamed := false
oldOwnerName := doer.Name

defer func() {
if !repoRenamed && !wikiRenamed {
return
}

recoverErr := recover()
if err == nil && recoverErr == nil {
return
}

if repoRenamed {
if err := os.Rename(RepoPath(newOwnerName, repo.Name), RepoPath(oldOwnerName, repo.Name)); err != nil {
log.Critical("Unable to move repository %s/%s directory from %s back to correct place %s: %v", oldOwnerName, repo.Name, RepoPath(newOwnerName, repo.Name), RepoPath(oldOwnerName, repo.Name), err)
}
}

if wikiRenamed {
if err := os.Rename(WikiPath(newOwnerName, repo.Name), WikiPath(oldOwnerName, repo.Name)); err != nil {
log.Critical("Unable to move wiki for repository %s/%s directory from %s back to correct place %s: %v", oldOwnerName, repo.Name, WikiPath(newOwnerName, repo.Name), WikiPath(oldOwnerName, repo.Name), err)
}
}

if recoverErr != nil {
log.Error("Panic within TransferOwnership: %v\n%s", recoverErr, log.Stack(2))
panic(recoverErr)
}
}()

newOwner, err := GetUserByName(newOwnerName)
if err != nil {
return fmt.Errorf("get new owner '%s': %v", newOwnerName, err)
}
newOwnerName = newOwner.Name // ensure capitalisation matches

// Check if new owner has repository with same name.
has, err := IsRepositoryExist(newOwner, repo.Name)
Expand All @@ -1311,6 +1344,7 @@ func TransferOwnership(doer *User, newOwnerName string, repo *Repository) error
}

oldOwner := repo.Owner
oldOwnerName = oldOwner.Name

// Note: we have to set value here to make sure recalculate accesses is based on
// new owner.
Expand Down Expand Up @@ -1370,9 +1404,9 @@ func TransferOwnership(doer *User, newOwnerName string, repo *Repository) error
}

// Update repository count.
if _, err = sess.Exec("UPDATE `user` SET num_repos=num_repos+1 WHERE id=?", newOwner.ID); err != nil {
if _, err := sess.Exec("UPDATE `user` SET num_repos=num_repos+1 WHERE id=?", newOwner.ID); err != nil {
return fmt.Errorf("increase new owner repository count: %v", err)
} else if _, err = sess.Exec("UPDATE `user` SET num_repos=num_repos-1 WHERE id=?", oldOwner.ID); err != nil {
} else if _, err := sess.Exec("UPDATE `user` SET num_repos=num_repos-1 WHERE id=?", oldOwner.ID); err != nil {
return fmt.Errorf("decrease old owner repository count: %v", err)
}

Expand All @@ -1382,7 +1416,7 @@ func TransferOwnership(doer *User, newOwnerName string, repo *Repository) error

// Remove watch for organization.
if oldOwner.IsOrganization() {
if err = watchRepo(sess, oldOwner.ID, repo.ID, false); err != nil {
if err := watchRepo(sess, oldOwner.ID, repo.ID, false); err != nil {
return fmt.Errorf("watchRepo [false]: %v", err)
}
}
Expand All @@ -1394,16 +1428,18 @@ func TransferOwnership(doer *User, newOwnerName string, repo *Repository) error
return fmt.Errorf("Failed to create dir %s: %v", dir, err)
}

if err = os.Rename(RepoPath(oldOwner.Name, repo.Name), RepoPath(newOwner.Name, repo.Name)); err != nil {
if err := os.Rename(RepoPath(oldOwner.Name, repo.Name), RepoPath(newOwner.Name, repo.Name)); err != nil {
return fmt.Errorf("rename repository directory: %v", err)
}
repoRenamed = true

// Rename remote wiki repository to new path and delete local copy.
wikiPath := WikiPath(oldOwner.Name, repo.Name)
if com.IsExist(wikiPath) {
if err = os.Rename(wikiPath, WikiPath(newOwner.Name, repo.Name)); err != nil {
if err := os.Rename(wikiPath, WikiPath(newOwner.Name, repo.Name)); err != nil {
return fmt.Errorf("rename repository wiki: %v", err)
}
wikiRenamed = true
}

// If there was previously a redirect at this location, remove it.
Expand Down