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preserve users if restoring a repository on the same Gitea instance #18604

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Merged
merged 2 commits into from
Feb 6, 2022
Merged

preserve users if restoring a repository on the same Gitea instance #18604

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2ef4f3e
preserve users if restoring a repository on the same Gitea instance
Feb 4, 2022
e9d0063
Merge branch 'main' into forgefriends-mr41
lunny Feb 6, 2022
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1 change: 1 addition & 0 deletions integrations/dump_restore_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,7 @@ func TestDumpRestore(t *testing.T) {
assert.EqualValues(t, before[i].Created, after[i].Created)
assert.EqualValues(t, before[i].Updated, after[i].Updated)
assert.EqualValues(t, before[i].Labels, after[i].Labels)
assert.EqualValues(t, before[i].Reactions, after[i].Reactions)
}
}
})
Expand Down
13 changes: 13 additions & 0 deletions models/user/user.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1025,6 +1025,19 @@ func GetUserNamesByIDs(ids []int64) ([]string, error) {
return unames, err
}

// GetUserNameByID returns username for the id
func GetUserNameByID(ctx context.Context, id int64) (string, error) {
var name string
has, err := db.GetEngine(db.DefaultContext).Table("user").Where("id = ?", id).Cols("name").Get(&name)
if err != nil {
return "", err
}
if has {
return name, nil
}
return "", nil
}

// GetUserIDsByNames returns a slice of ids corresponds to names.
func GetUserIDsByNames(names []string, ignoreNonExistent bool) ([]int64, error) {
ids := make([]int64, 0, len(names))
Expand Down
75 changes: 53 additions & 22 deletions services/migrations/gitea_uploader.go
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ type GiteaLocalUploader struct {
issues map[int64]*models.Issue
gitRepo *git.Repository
prHeadCache map[string]struct{}
sameApp bool
userMap map[int64]int64 // external user id mapping to user id
prCache map[int64]*models.PullRequest
gitServiceType structs.GitServiceType
Expand Down Expand Up @@ -128,6 +129,7 @@ func (g *GiteaLocalUploader) CreateRepo(repo *base.Repository, opts base.Migrate
MirrorInterval: opts.MirrorInterval,
}, NewMigrationHTTPTransport())

g.sameApp = strings.HasPrefix(repo.OriginalURL, setting.AppURL)
g.repo = r
if err != nil {
return err
Expand Down Expand Up @@ -256,7 +258,7 @@ func (g *GiteaLocalUploader) CreateReleases(releases ...*base.Release) error {
CreatedUnix: timeutil.TimeStamp(release.Created.Unix()),
}

if err := g.remapExternalUser(release, &rel); err != nil {
if err := g.remapUser(release, &rel); err != nil {
return err
}

Expand Down Expand Up @@ -373,7 +375,7 @@ func (g *GiteaLocalUploader) CreateIssues(issues ...*base.Issue) error {
UpdatedUnix: timeutil.TimeStamp(issue.Updated.Unix()),
}

if err := g.remapExternalUser(issue, &is); err != nil {
if err := g.remapUser(issue, &is); err != nil {
return err
}

Expand All @@ -386,7 +388,7 @@ func (g *GiteaLocalUploader) CreateIssues(issues ...*base.Issue) error {
Type: reaction.Content,
CreatedUnix: timeutil.TimeStampNow(),
}
if err := g.remapExternalUser(reaction, &res); err != nil {
if err := g.remapUser(reaction, &res); err != nil {
return err
}
is.Reactions = append(is.Reactions, &res)
Expand Down Expand Up @@ -437,7 +439,7 @@ func (g *GiteaLocalUploader) CreateComments(comments ...*base.Comment) error {
UpdatedUnix: timeutil.TimeStamp(comment.Updated.Unix()),
}

if err := g.remapExternalUser(comment, &cm); err != nil {
if err := g.remapUser(comment, &cm); err != nil {
return err
}

Expand All @@ -447,7 +449,7 @@ func (g *GiteaLocalUploader) CreateComments(comments ...*base.Comment) error {
Type: reaction.Content,
CreatedUnix: timeutil.TimeStampNow(),
}
if err := g.remapExternalUser(reaction, &res); err != nil {
if err := g.remapUser(reaction, &res); err != nil {
return err
}
cm.Reactions = append(cm.Reactions, &res)
Expand All @@ -471,7 +473,7 @@ func (g *GiteaLocalUploader) CreatePullRequests(prs ...*base.PullRequest) error
return err
}

if err := g.remapExternalUser(pr, gpr.Issue); err != nil {
if err := g.remapUser(pr, gpr.Issue); err != nil {
return err
}

Expand Down Expand Up @@ -626,7 +628,7 @@ func (g *GiteaLocalUploader) newPullRequest(pr *base.PullRequest) (*models.PullR
UpdatedUnix: timeutil.TimeStamp(pr.Updated.Unix()),
}

if err := g.remapExternalUser(pr, &issue); err != nil {
if err := g.remapUser(pr, &issue); err != nil {
return nil, err
}

Expand All @@ -636,7 +638,7 @@ func (g *GiteaLocalUploader) newPullRequest(pr *base.PullRequest) (*models.PullR
Type: reaction.Content,
CreatedUnix: timeutil.TimeStampNow(),
}
if err := g.remapExternalUser(reaction, &res); err != nil {
if err := g.remapUser(reaction, &res); err != nil {
return nil, err
}
issue.Reactions = append(issue.Reactions, &res)
Expand Down Expand Up @@ -710,7 +712,7 @@ func (g *GiteaLocalUploader) CreateReviews(reviews ...*base.Review) error {
UpdatedUnix: timeutil.TimeStamp(review.CreatedAt.Unix()),
}

if err := g.remapExternalUser(review, &cm); err != nil {
if err := g.remapUser(review, &cm); err != nil {
return err
}

Expand Down Expand Up @@ -773,7 +775,7 @@ func (g *GiteaLocalUploader) CreateReviews(reviews ...*base.Review) error {
UpdatedUnix: timeutil.TimeStamp(comment.UpdatedAt.Unix()),
}

if err := g.remapExternalUser(review, &c); err != nil {
if err := g.remapUser(review, &c); err != nil {
return err
}

Expand Down Expand Up @@ -816,23 +818,52 @@ func (g *GiteaLocalUploader) Finish() error {
return repo_model.UpdateRepositoryCols(g.repo, "status")
}

func (g *GiteaLocalUploader) remapExternalUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) (err error) {
func (g *GiteaLocalUploader) remapUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) error {
var userid int64
var err error
if g.sameApp {
userid, err = g.remapLocalUser(source, target)
} else {
userid, err = g.remapExternalUser(source, target)
}

if err != nil {
return err
}

if userid > 0 {
return target.RemapExternalUser("", 0, userid)
}
return target.RemapExternalUser(source.GetExternalName(), source.GetExternalID(), g.doer.ID)
}

func (g *GiteaLocalUploader) remapLocalUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) (int64, error) {
userid, ok := g.userMap[source.GetExternalID()]
tp := g.gitServiceType.Name()
if !ok && tp != "" {
userid, err = user_model.GetUserIDByExternalUserID(tp, fmt.Sprintf("%d", source.GetExternalID()))
if !ok {
name, err := user_model.GetUserNameByID(g.ctx, source.GetExternalID())
if err != nil {
log.Error("GetUserIDByExternalUserID: %v", err)
return 0, err
}
if userid > 0 {
g.userMap[source.GetExternalID()] = userid
// let's not reuse an ID when the user was deleted or has a different user name
if name != source.GetExternalName() {
userid = 0
} else {
userid = source.GetExternalID()
}
g.userMap[source.GetExternalID()] = userid
}
return userid, nil
}

if userid > 0 {
err = target.RemapExternalUser("", 0, userid)
} else {
err = target.RemapExternalUser(source.GetExternalName(), source.GetExternalID(), g.doer.ID)
func (g *GiteaLocalUploader) remapExternalUser(source user_model.ExternalUserMigrated, target user_model.ExternalUserRemappable) (userid int64, err error) {
userid, ok := g.userMap[source.GetExternalID()]
if !ok {
userid, err = user_model.GetUserIDByExternalUserID(g.gitServiceType.Name(), fmt.Sprintf("%d", source.GetExternalID()))
if err != nil {
log.Error("GetUserIDByExternalUserID: %v", err)
return 0, err
}
g.userMap[source.GetExternalID()] = userid
}
return
return userid, nil
}
62 changes: 58 additions & 4 deletions services/migrations/gitea_uploader_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -117,16 +117,68 @@ func TestGiteaUploadRepo(t *testing.T) {
assert.Len(t, pulls[0].Issue.Comments, 2)
}

func TestGiteaUploadRemapLocalUser(t *testing.T) {
unittest.PrepareTestEnv(t)
doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1}).(*user_model.User)
user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User)

repoName := "migrated"
uploader := NewGiteaLocalUploader(context.Background(), doer, doer.Name, repoName)
// call remapLocalUser
uploader.sameApp = true

externalID := int64(1234567)
externalName := "username"
source := base.Release{
PublisherID: externalID,
PublisherName: externalName,
}

//
// The externalID does not match any existing user, everything
// belongs to the doer
//
target := models.Release{}
uploader.userMap = make(map[int64]int64)
err := uploader.remapUser(&source, &target)
assert.NoError(t, err)
assert.EqualValues(t, doer.ID, target.GetUserID())

//
// The externalID matches a known user but the name does not match,
// everything belongs to the doer
//
source.PublisherID = user.ID
target = models.Release{}
uploader.userMap = make(map[int64]int64)
err = uploader.remapUser(&source, &target)
assert.NoError(t, err)
assert.EqualValues(t, doer.ID, target.GetUserID())

//
// The externalID and externalName match an existing user, everything
// belongs to the existing user
//
source.PublisherName = user.Name
target = models.Release{}
uploader.userMap = make(map[int64]int64)
err = uploader.remapUser(&source, &target)
assert.NoError(t, err)
assert.EqualValues(t, user.ID, target.GetUserID())
}

func TestGiteaUploadRemapExternalUser(t *testing.T) {
unittest.PrepareTestEnv(t)
doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1}).(*user_model.User)

repoName := "migrated"
uploader := NewGiteaLocalUploader(context.Background(), doer, doer.Name, repoName)
uploader.gitServiceType = structs.GiteaService
// call remapExternalUser
uploader.sameApp = false

externalID := int64(1234567)
externalName := "url.or.something"
externalName := "username"
source := base.Release{
PublisherID: externalID,
PublisherName: externalName,
Expand All @@ -136,8 +188,9 @@ func TestGiteaUploadRemapExternalUser(t *testing.T) {
// When there is no user linked to the external ID, the migrated data is authored
// by the doer
//
uploader.userMap = make(map[int64]int64)
target := models.Release{}
err := uploader.remapExternalUser(&source, &target)
err := uploader.remapUser(&source, &target)
assert.NoError(t, err)
assert.EqualValues(t, doer.ID, target.GetUserID())

Expand All @@ -158,8 +211,9 @@ func TestGiteaUploadRemapExternalUser(t *testing.T) {
// When a user is linked to the external ID, it becomes the author of
// the migrated data
//
uploader.userMap = make(map[int64]int64)
target = models.Release{}
err = uploader.remapExternalUser(&source, &target)
err = uploader.remapUser(&source, &target)
assert.NoError(t, err)
assert.EqualValues(t, target.GetUserID(), linkedUser.ID)
assert.EqualValues(t, linkedUser.ID, target.GetUserID())
}