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Handle more pathological branch and tag names (#11843) (#11863)

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Backport #11843

It's possible to push quite pathological appearing branch names to gitea
using git push gitea reasonable-branch:refs/heads/-- at which point
large parts of the UI will break. Similarly you can git push origin
reasonable-tag:refs/tags/-- which wil return an error.

This PR fixes the problems these cause. It also changes the code from
creating branches to pushing to ensure that branch restoration has to
pass hooks.

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
This commit is contained in:
zeripath
2020-06-12 19:01:44 +01:00
committed by GitHub
parent ef2f18964e
commit 320031fce6
7 changed files with 41 additions and 87 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
routers/repo/branch.go
View File

@@ -6,6 +6,7 @@
package repo
import (
"fmt"
"strings"
"code.gitea.io/gitea/models"
@@ -102,7 +103,11 @@ func RestoreBranchPost(ctx *context.Context) {
return
}
if err := ctx.Repo.GitRepo.CreateBranch(deletedBranch.Name, deletedBranch.Commit); err != nil {
if err := git.Push(ctx.Repo.Repository.RepoPath(), git.PushOptions{
Remote: ctx.Repo.Repository.RepoPath(),
Branch: fmt.Sprintf("%s:%s%s", deletedBranch.Commit, git.BranchPrefix, deletedBranch.Name),
Env: models.PushingEnvironment(ctx.User, ctx.Repo.Repository),
}); err != nil {
if strings.Contains(err.Error(), "already exists") {
ctx.Flash.Error(ctx.Tr("repo.branch.already_exists", deletedBranch.Name))
return
@@ -112,12 +117,6 @@ func RestoreBranchPost(ctx *context.Context) {
return
}
if err := ctx.Repo.Repository.RemoveDeletedBranch(deletedBranch.ID); err != nil {
log.Error("RemoveDeletedBranch: %v", err)
ctx.Flash.Error(ctx.Tr("repo.branch.restore_failed", deletedBranch.Name))
return
}
// Don't return error below this
if err := repofiles.PushUpdate(
ctx.Repo.Repository,
@@ -216,7 +215,7 @@ func loadBranches(ctx *context.Context) []*Branch {
}
}
divergence, divergenceError := repofiles.CountDivergingCommits(ctx.Repo.Repository, branchName)
divergence, divergenceError := repofiles.CountDivergingCommits(ctx.Repo.Repository, git.BranchPrefix+branchName)
if divergenceError != nil {
ctx.ServerError("CountDivergingCommits", divergenceError)
return nil
@@ -331,6 +330,8 @@ func CreateBranch(ctx *context.Context, form auth.NewBranchForm) {
var err error
if ctx.Repo.IsViewBranch {
err = repo_module.CreateNewBranch(ctx.User, ctx.Repo.Repository, ctx.Repo.BranchName, form.NewBranchName)
} else if ctx.Repo.IsViewTag {
err = repo_module.CreateNewBranchFromCommit(ctx.User, ctx.Repo.Repository, ctx.Repo.CommitID, form.NewBranchName)
} else {
err = repo_module.CreateNewBranchFromCommit(ctx.User, ctx.Repo.Repository, ctx.Repo.BranchName, form.NewBranchName)
}

15
routers/repo/compare.go
View File

@@ -381,7 +381,20 @@ func ParseCompareInfo(ctx *context.Context) (*models.User, *models.Repository, *
return nil, nil, nil, nil, "", ""
}
compareInfo, err := headGitRepo.GetCompareInfo(baseRepo.RepoPath(), baseBranch, headBranch)
baseBranchRef := baseBranch
if baseIsBranch {
baseBranchRef = git.BranchPrefix + baseBranch
} else if baseIsTag {
baseBranchRef = git.TagPrefix + baseBranch
}
headBranchRef := headBranch
if headIsBranch {
headBranchRef = git.BranchPrefix + headBranch
} else if headIsTag {
headBranchRef = git.TagPrefix + headBranch
}
compareInfo, err := headGitRepo.GetCompareInfo(baseRepo.RepoPath(), baseBranchRef, headBranchRef)
if err != nil {
ctx.ServerError("GetCompareInfo", err)
return nil, nil, nil, nil, "", ""

2
routers/repo/pull.go
View File

@@ -484,7 +484,7 @@ func PrepareViewPullInfo(ctx *context.Context, issue *models.Issue) *git.Compare
}
compareInfo, err := baseGitRepo.GetCompareInfo(pull.BaseRepo.RepoPath(),
pull.BaseBranch, pull.GetGitRefName())
git.BranchPrefix+pull.BaseBranch, pull.GetGitRefName())
if err != nil {
if strings.Contains(err.Error(), "fatal: Not a valid object name") {
ctx.Data["IsPullRequestBroken"] = true