From 35d5e4aea4bb02a0b4c7b38ecb2acf612151e891 Mon Sep 17 00:00:00 2001 From: vincent Date: Mon, 19 Feb 2024 22:50:03 +0800 Subject: [PATCH] Fix content size does not match error when uploading lfs file (#29259) ![image](https://github.com/go-gitea/gitea/assets/38434877/cd726b4d-4771-4547-8aee-ae4e4b56b1d1) When we update an lfs file by API `api/v1/repos/{owner}/{repo}/contents/{filepath}`, there will show an error ```json { "message": "Put \"http://localhost:9000/gitea/lfs/38/92/05904d6c7bb83fc676513911226f2be25bf1465616bb9b29587100ab1414\": readfrom tcp [::1]:57300->[::1]:9000: content size does not match", "url": "http://localhost:3000/api/swagger" } ``` The reason of this error is https://github.com/go-gitea/gitea/blob/main/services/repository/files/update.go, in this file, the `file.ContentReader` been used twice. So when use `file.ContentReader` in the second time, the `i` of this Reader has been updated to the length of the content. it will return 0 and an `io.EOF` error when we try to read cotent from this Reader. --- routers/api/v1/repo/file.go | 2 +- services/repository/files/update.go | 6 +++++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/routers/api/v1/repo/file.go b/routers/api/v1/repo/file.go index 370e4753f3..317213c946 100644 --- a/routers/api/v1/repo/file.go +++ b/routers/api/v1/repo/file.go @@ -408,7 +408,7 @@ func canReadFiles(r *context.Repository) bool { return r.Permission.CanRead(unit.TypeCode) } -func base64Reader(s string) (io.Reader, error) { +func base64Reader(s string) (io.ReadSeeker, error) { b, err := base64.StdEncoding.DecodeString(s) if err != nil { return nil, err diff --git a/services/repository/files/update.go b/services/repository/files/update.go index f223daf3a9..4f7178184b 100644 --- a/services/repository/files/update.go +++ b/services/repository/files/update.go @@ -40,7 +40,7 @@ type ChangeRepoFile struct { Operation string TreePath string FromTreePath string - ContentReader io.Reader + ContentReader io.ReadSeeker SHA string Options *RepoFileOptions } @@ -448,6 +448,10 @@ func CreateOrUpdateFile(ctx context.Context, t *TemporaryUploadRepository, file return err } if !exist { + _, err := file.ContentReader.Seek(0, io.SeekStart) + if err != nil { + return err + } if err := contentStore.Put(lfsMetaObject.Pointer, file.ContentReader); err != nil { if _, err2 := git_model.RemoveLFSMetaObjectByOid(ctx, repoID, lfsMetaObject.Oid); err2 != nil { return fmt.Errorf("unable to remove failed inserted LFS object %s: %v (Prev Error: %w)", lfsMetaObject.Oid, err2, err)