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Validate that the tag doesn't exist when creating a tag via the web #33241

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Jan 14, 2025
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217 changes: 104 additions & 113 deletions routers/web/repo/release.go
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@ import (
"code.gitea.io/gitea/models/unit"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup/markdown"
"code.gitea.io/gitea/modules/optional"
"code.gitea.io/gitea/modules/setting"
Expand Down Expand Up @@ -330,12 +329,40 @@ func LatestRelease(ctx *context.Context) {
ctx.Redirect(release.Link())
}

// NewRelease render creating or edit release page
func NewRelease(ctx *context.Context) {
func newReleaseCommon(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("repo.release.new_release")
ctx.Data["PageIsReleaseList"] = true

tags, err := repo_model.GetTagNamesByRepoID(ctx, ctx.Repo.Repository.ID)
if err != nil {
ctx.ServerError("GetTagNamesByRepoID", err)
return
}
ctx.Data["Tags"] = tags

ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
assigneeUsers, err := repo_model.GetRepoAssignees(ctx, ctx.Repo.Repository)
if err != nil {
ctx.ServerError("GetRepoAssignees", err)
return
}
ctx.Data["Assignees"] = shared_user.MakeSelfOnTop(ctx.Doer, assigneeUsers)

upload.AddUploadContext(ctx, "release")

PrepareBranchList(ctx) // for New Release page
}

// NewRelease render creating or edit release page
func NewRelease(ctx *context.Context) {
newReleaseCommon(ctx)
if ctx.Written() {
return
}

// pre-fill the form with the tag name, target branch and the existing release (if exists)
ctx.Data["tag_target"] = ctx.Repo.Repository.DefaultBranch
if tagName := ctx.FormString("tag"); len(tagName) > 0 {
if tagName := ctx.FormString("tag"); tagName != "" {
rel, err := repo_model.GetRelease(ctx, ctx.Repo.Repository.ID, tagName)
if err != nil && !repo_model.IsErrReleaseNotExist(err) {
ctx.ServerError("GetRelease", err)
Expand All @@ -344,59 +371,42 @@ func NewRelease(ctx *context.Context) {

if rel != nil {
rel.Repo = ctx.Repo.Repository
if err := rel.LoadAttributes(ctx); err != nil {
if err = rel.LoadAttributes(ctx); err != nil {
ctx.ServerError("LoadAttributes", err)
return
}

ctx.Data["TagNameReleaseExists"] = true
ctx.Data["tag_name"] = rel.TagName
if rel.Target != "" {
ctx.Data["tag_target"] = rel.Target
}
ctx.Data["tag_target"] = rel.Target
ctx.Data["title"] = rel.Title
ctx.Data["content"] = rel.Note
ctx.Data["attachments"] = rel.Attachments
}
}
ctx.Data["IsAttachmentEnabled"] = setting.Attachment.Enabled
assigneeUsers, err := repo_model.GetRepoAssignees(ctx, ctx.Repo.Repository)
if err != nil {
ctx.ServerError("GetRepoAssignees", err)
return
}
ctx.Data["Assignees"] = shared_user.MakeSelfOnTop(ctx.Doer, assigneeUsers)

upload.AddUploadContext(ctx, "release")

// For New Release page
PrepareBranchList(ctx)
if ctx.Written() {
return
}

tags, err := repo_model.GetTagNamesByRepoID(ctx, ctx.Repo.Repository.ID)
if err != nil {
ctx.ServerError("GetTagNamesByRepoID", err)
return
}
ctx.Data["Tags"] = tags

ctx.HTML(http.StatusOK, tplReleaseNew)
}

// NewReleasePost response for creating a release
func NewReleasePost(ctx *context.Context) {
newReleaseCommon(ctx)
if ctx.Written() {
return
}

form := web.GetForm(ctx).(*forms.NewReleaseForm)
ctx.Data["Title"] = ctx.Tr("repo.release.new_release")
ctx.Data["PageIsReleaseList"] = true

tags, err := repo_model.GetTagNamesByRepoID(ctx, ctx.Repo.Repository.ID)
if err != nil {
ctx.ServerError("GetTagNamesByRepoID", err)
// first, check whether the release exists,
// it should be done before the form error check, because the tmpl needs "TagNameReleaseExists" to show/hide the "tag only" button
rel, err := repo_model.GetRelease(ctx, ctx.Repo.Repository.ID, form.TagName)
if err != nil && !repo_model.IsErrReleaseNotExist(err) {
ctx.ServerError("GetRelease", err)
return
}
ctx.Data["Tags"] = tags
ctx.Data["TagNameReleaseExists"] = rel != nil
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Big fan of the test refactor. Everything looks good to me, the only problem that I see now is the "Create Tag Only" problem we discussed earlier:

Screenshot 2025-01-13 at 10 43 07 AM

To reproduce:

  • Have an existing tag e.g. "v1.0"
  • Try creating a tag with the same name

It looks like this happens because the "error form" page we return now has a tag_name that points to an existing Release, which would set the highlighted line to true.

Would it make sense to set this to something like:

Suggested change
ctx.Data["TagNameReleaseExists"] = rel != nil
ctx.Data["TagNameReleaseExists"] = rel != nil && !rel.IsTag

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@wxiaoguang wxiaoguang Jan 13, 2025

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Hmm, I think the problem is: we shouldn't stop users from creating new "tag-only" if the error occurs, no matter whether the release exists. So I think this line should be completely removed.

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@wxiaoguang wxiaoguang Jan 13, 2025

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Made some changes in 57aef6d

// We should still show the "tag only" button if the user clicks it, no matter the release exists or not.
// Because if error occurs, end users need to have the chance to edit the name and submit the form with "tag-only" again.
// It is still not completely right, because there could still be cases like this:
// * user visit "new release" page, see the "tag only" button
// * input something, click other buttons but not "tag only"
// * error occurs, the "new release" page is rendered again, but the "tag only" button is gone
// Such cases are not able to be handled by current code, it needs frontend code to toggle the "tag-only" button if the input changes.
ctx.Data["ShowCreateTagOnlyButton"] = form.TagOnly || rel == nil

Does it sound right?

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@kemzeb kemzeb Jan 13, 2025

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Yes it sounds about right

Hmm, I think the problem is: we shouldn't stop users from creating new "tag-only" if the error occurs, no matter whether the release exists. So I think this line should be completely removed.

Hmm it looks like the only case where we do hide it is when a tag_name field is passed which refers to an existing tag (I guess we hide it to avoid any confusion by users). I think it is fine to follow your alternative approach and have the button always appear since the user would be shown an error in case they do press it, but it's up to you


// do some form checks
if ctx.HasError() {
ctx.HTML(http.StatusOK, tplReleaseNew)
return
Expand All @@ -407,59 +417,49 @@ func NewReleasePost(ctx *context.Context) {
return
}

// Title of release cannot be empty
if len(form.TagOnly) == 0 && len(form.Title) == 0 {
if !form.TagOnly && form.Title == "" {
// if not "tag only", then the title of the release cannot be empty
ctx.RenderWithErr(ctx.Tr("repo.release.title_empty"), tplReleaseNew, &form)
return
}

var attachmentUUIDs []string
if setting.Attachment.Enabled {
attachmentUUIDs = form.Files
}

rel, err := repo_model.GetRelease(ctx, ctx.Repo.Repository.ID, form.TagName)
if err != nil {
if !repo_model.IsErrReleaseNotExist(err) {
ctx.ServerError("GetRelease", err)
return
}

msg := ""
if len(form.Title) > 0 && form.AddTagMsg {
msg = form.Title + "\n\n" + form.Content
handleTagReleaseError := func(err error) {
ctx.Data["Err_TagName"] = true
switch {
case release_service.IsErrTagAlreadyExists(err):
ctx.RenderWithErr(ctx.Tr("repo.branch.tag_collision", form.TagName), tplReleaseNew, &form)
case repo_model.IsErrReleaseAlreadyExist(err):
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_already_exist"), tplReleaseNew, &form)
case release_service.IsErrInvalidTagName(err):
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_invalid"), tplReleaseNew, &form)
case release_service.IsErrProtectedTagName(err):
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_protected"), tplReleaseNew, &form)
default:
ctx.ServerError("handleTagReleaseError", err)
}
}

if len(form.TagOnly) > 0 {
if err = release_service.CreateNewTag(ctx, ctx.Doer, ctx.Repo.Repository, form.Target, form.TagName, msg); err != nil {
if release_service.IsErrTagAlreadyExists(err) {
e := err.(release_service.ErrTagAlreadyExists)
ctx.Flash.Error(ctx.Tr("repo.branch.tag_collision", e.TagName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}

if release_service.IsErrInvalidTagName(err) {
ctx.Flash.Error(ctx.Tr("repo.release.tag_name_invalid"))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}

if release_service.IsErrProtectedTagName(err) {
ctx.Flash.Error(ctx.Tr("repo.release.tag_name_protected"))
ctx.Redirect(ctx.Repo.RepoLink + "/src/" + ctx.Repo.RefTypeNameSubURL())
return
}

ctx.ServerError("release_service.CreateNewTag", err)
return
}
// prepare the git message for creating a new tag
newTagMsg := ""
if form.Title != "" && form.AddTagMsg {
newTagMsg = form.Title + "\n\n" + form.Content
}

ctx.Flash.Success(ctx.Tr("repo.tag.create_success", form.TagName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/tag/" + util.PathEscapeSegments(form.TagName))
// no release, and tag only
if rel == nil && form.TagOnly {
if err = release_service.CreateNewTag(ctx, ctx.Doer, ctx.Repo.Repository, form.Target, form.TagName, newTagMsg); err != nil {
handleTagReleaseError(err)
return
}
ctx.Flash.Success(ctx.Tr("repo.tag.create_success", form.TagName))
ctx.Redirect(ctx.Repo.RepoLink + "/src/tag/" + util.PathEscapeSegments(form.TagName))
return
}

attachmentUUIDs := util.Iif(setting.Attachment.Enabled, form.Files, nil)

// no existing release, create a new release
if rel == nil {
rel = &repo_model.Release{
RepoID: ctx.Repo.Repository.ID,
Repo: ctx.Repo.Repository,
Expand All @@ -469,48 +469,39 @@ func NewReleasePost(ctx *context.Context) {
TagName: form.TagName,
Target: form.Target,
Note: form.Content,
IsDraft: len(form.Draft) > 0,
IsDraft: form.Draft,
IsPrerelease: form.Prerelease,
IsTag: false,
}

if err = release_service.CreateRelease(ctx.Repo.GitRepo, rel, attachmentUUIDs, msg); err != nil {
ctx.Data["Err_TagName"] = true
switch {
case repo_model.IsErrReleaseAlreadyExist(err):
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_already_exist"), tplReleaseNew, &form)
case release_service.IsErrInvalidTagName(err):
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_invalid"), tplReleaseNew, &form)
case release_service.IsErrProtectedTagName(err):
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_protected"), tplReleaseNew, &form)
default:
ctx.ServerError("CreateRelease", err)
}
return
}
} else {
if !rel.IsTag {
ctx.Data["Err_TagName"] = true
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_already_exist"), tplReleaseNew, &form)
if err = release_service.CreateRelease(ctx.Repo.GitRepo, rel, attachmentUUIDs, newTagMsg); err != nil {
handleTagReleaseError(err)
return
}
ctx.Redirect(ctx.Repo.RepoLink + "/releases")
return
}

rel.Title = form.Title
rel.Note = form.Content
rel.Target = form.Target
rel.IsDraft = len(form.Draft) > 0
rel.IsPrerelease = form.Prerelease
rel.PublisherID = ctx.Doer.ID
rel.IsTag = false

if err = release_service.UpdateRelease(ctx, ctx.Doer, ctx.Repo.GitRepo, rel, attachmentUUIDs, nil, nil); err != nil {
ctx.Data["Err_TagName"] = true
ctx.ServerError("UpdateRelease", err)
return
}
// tag exists, try to convert it to a real release
// old logic: if the release is not a tag (it is a real release), do not update it on the "new release" page
// add new logic: if tag-only, do not convert the tag to a release
if form.TagOnly || !rel.IsTag {
ctx.Data["Err_TagName"] = true
ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_already_exist"), tplReleaseNew, &form)
return
}
log.Trace("Release created: %s/%s:%s", ctx.Doer.LowerName, ctx.Repo.Repository.Name, form.TagName)

// convert a tag to a real release (set is_tag=false)
rel.Title = form.Title
rel.Note = form.Content
rel.Target = form.Target
rel.IsDraft = form.Draft
rel.IsPrerelease = form.Prerelease
rel.PublisherID = ctx.Doer.ID
rel.IsTag = false
if err = release_service.UpdateRelease(ctx, ctx.Doer, ctx.Repo.GitRepo, rel, attachmentUUIDs, nil, nil); err != nil {
handleTagReleaseError(err)
return
}
ctx.Redirect(ctx.Repo.RepoLink + "/releases")
}

Expand Down
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