From 4dac8b2389a6d675eef4a43995cad6e0bbde6a3f Mon Sep 17 00:00:00 2001 From: zeripath Date: Fri, 1 Nov 2019 17:50:59 +0000 Subject: [PATCH] Allow to merge if file path contains " or \ (#8629) (#8771) * if a filename in a repository contains " or \ the owner can't merge pull request with this files because "git diff-tree" adds double quotes to that filepath example: filepath is ab"cd but "git diff-tree" returns "ab\"cd" now, when the owner click "Merge Pull Request" button the server returns 500 this commit fix it Signed-off-by: Ilya Pavlov * add -z option to getDiffTree escape spec symbols for sparse-checkout Signed-off-by: Ilya Pavlov * go fmt Signed-off-by: Ilya Pavlov * typo Signed-off-by: Ilya Pavlov * escape '\' escape all spaces and '!' * use regexp.ReplaceAllString() Signed-off-by: Ilya Pavlov * strings.ReplaceAll was added in go 1.12 Signed-off-by: Ilya Pavlov * add '\' to regexp.MustCompile Signed-off-by: Ilya Pavlov --- services/pull/merge.go | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) diff --git a/services/pull/merge.go b/services/pull/merge.go index 6a1c30a63ea..db071418daf 100644 --- a/services/pull/merge.go +++ b/services/pull/merge.go @@ -12,6 +12,7 @@ import ( "io/ioutil" "os" "path/filepath" + "regexp" "strings" "code.gitea.io/gitea/models" @@ -328,16 +329,31 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor return nil } +var escapedSymbols = regexp.MustCompile(`([*[?! \\])`) + func getDiffTree(repoPath, baseBranch, headBranch string) (string, error) { getDiffTreeFromBranch := func(repoPath, baseBranch, headBranch string) (string, error) { var outbuf, errbuf strings.Builder // Compute the diff-tree for sparse-checkout - if err := git.NewCommand("diff-tree", "--no-commit-id", "--name-only", "-r", "--root", baseBranch, headBranch, "--").RunInDirPipeline(repoPath, &outbuf, &errbuf); err != nil { + if err := git.NewCommand("diff-tree", "--no-commit-id", "--name-only", "-r", "-z", "--root", baseBranch, headBranch, "--").RunInDirPipeline(repoPath, &outbuf, &errbuf); err != nil { return "", fmt.Errorf("git diff-tree [%s base:%s head:%s]: %s", repoPath, baseBranch, headBranch, errbuf.String()) } return outbuf.String(), nil } + scanNullTerminatedStrings := func(data []byte, atEOF bool) (advance int, token []byte, err error) { + if atEOF && len(data) == 0 { + return 0, nil, nil + } + if i := bytes.IndexByte(data, '\x00'); i >= 0 { + return i + 1, data[0:i], nil + } + if atEOF { + return len(data), data, nil + } + return 0, nil, nil + } + list, err := getDiffTreeFromBranch(repoPath, baseBranch, headBranch) if err != nil { return "", err @@ -346,8 +362,14 @@ func getDiffTree(repoPath, baseBranch, headBranch string) (string, error) { // Prefixing '/' for each entry, otherwise all files with the same name in subdirectories would be matched. out := bytes.Buffer{} scanner := bufio.NewScanner(strings.NewReader(list)) + scanner.Split(scanNullTerminatedStrings) for scanner.Scan() { - fmt.Fprintf(&out, "/%s\n", scanner.Text()) + filepath := scanner.Text() + // escape '*', '?', '[', spaces and '!' prefix + filepath = escapedSymbols.ReplaceAllString(filepath, `\$1`) + // no necessary to escape the first '#' symbol because the first symbol is '/' + fmt.Fprintf(&out, "/%s\n", filepath) } + return out.String(), nil }