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mirror of https://github.com/go-gitea/gitea.git synced 2024-12-23 09:44:33 +01:00
gitea/routers/web/repo/download.go
Zettat123 0690cb076b
Fix missing signature key error when pulling Docker images with SERVE_DIRECT enabled (#32365)
Fix #28121

I did some tests and found that the `missing signature key` error is
caused by an incorrect `Content-Type` header. Gitea correctly sets the
`Content-Type` header when serving files.

348d1d0f32/routers/api/packages/container/container.go (L712-L717)
However, when `SERVE_DIRECT` is enabled, the `Content-Type` header may
be set to an incorrect value by the storage service. To fix this issue,
we can use query parameters to override response header values.

https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html
<img width="600px"
src="https://github.com/user-attachments/assets/f2ff90f0-f1df-46f9-9680-b8120222c555"
/>

In this PR, I introduced a new parameter to the `URL` method to support
additional parameters.

```
URL(path, name string, reqParams url.Values) (*url.URL, error)
```

---

Most S3-like services support specifying the content type when storing
objects. However, Gitea always use `application/octet-stream`.
Therefore, I believe we also need to improve the `Save` method to
support storing objects with the correct content type.

b7fb20e73e/modules/storage/minio.go (L214-L221)
2024-10-31 15:28:25 +00:00

171 lines
4.4 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repo
import (
"path"
"time"
git_model "code.gitea.io/gitea/models/git"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/httpcache"
"code.gitea.io/gitea/modules/lfs"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
"code.gitea.io/gitea/routers/common"
"code.gitea.io/gitea/services/context"
)
// ServeBlobOrLFS download a git.Blob redirecting to LFS if necessary
func ServeBlobOrLFS(ctx *context.Context, blob *git.Blob, lastModified *time.Time) error {
if httpcache.HandleGenericETagTimeCache(ctx.Req, ctx.Resp, `"`+blob.ID.String()+`"`, lastModified) {
return nil
}
dataRc, err := blob.DataAsync()
if err != nil {
return err
}
closed := false
defer func() {
if closed {
return
}
if err = dataRc.Close(); err != nil {
log.Error("ServeBlobOrLFS: Close: %v", err)
}
}()
pointer, _ := lfs.ReadPointer(dataRc)
if pointer.IsValid() {
meta, _ := git_model.GetLFSMetaObjectByOid(ctx, ctx.Repo.Repository.ID, pointer.Oid)
if meta == nil {
if err = dataRc.Close(); err != nil {
log.Error("ServeBlobOrLFS: Close: %v", err)
}
closed = true
return common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, lastModified)
}
if httpcache.HandleGenericETagCache(ctx.Req, ctx.Resp, `"`+pointer.Oid+`"`) {
return nil
}
if setting.LFS.Storage.ServeDirect() {
// If we have a signed url (S3, object storage, blob storage), redirect to this directly.
u, err := storage.LFS.URL(pointer.RelativePath(), blob.Name(), nil)
if u != nil && err == nil {
ctx.Redirect(u.String())
return nil
}
}
lfsDataRc, err := lfs.ReadMetaObject(meta.Pointer)
if err != nil {
return err
}
defer func() {
if err = lfsDataRc.Close(); err != nil {
log.Error("ServeBlobOrLFS: Close: %v", err)
}
}()
common.ServeContentByReadSeeker(ctx.Base, ctx.Repo.TreePath, lastModified, lfsDataRc)
return nil
}
if err = dataRc.Close(); err != nil {
log.Error("ServeBlobOrLFS: Close: %v", err)
}
closed = true
return common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, lastModified)
}
func getBlobForEntry(ctx *context.Context) (blob *git.Blob, lastModified *time.Time) {
entry, err := ctx.Repo.Commit.GetTreeEntryByPath(ctx.Repo.TreePath)
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetTreeEntryByPath", err)
} else {
ctx.ServerError("GetTreeEntryByPath", err)
}
return nil, nil
}
if entry.IsDir() || entry.IsSubModule() {
ctx.NotFound("getBlobForEntry", nil)
return nil, nil
}
info, _, err := git.Entries([]*git.TreeEntry{entry}).GetCommitsInfo(ctx, ctx.Repo.Commit, path.Dir("/" + ctx.Repo.TreePath)[1:])
if err != nil {
ctx.ServerError("GetCommitsInfo", err)
return nil, nil
}
if len(info) == 1 {
// Not Modified
lastModified = &info[0].Commit.Committer.When
}
blob = entry.Blob()
return blob, lastModified
}
// SingleDownload download a file by repos path
func SingleDownload(ctx *context.Context) {
blob, lastModified := getBlobForEntry(ctx)
if blob == nil {
return
}
if err := common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, lastModified); err != nil {
ctx.ServerError("ServeBlob", err)
}
}
// SingleDownloadOrLFS download a file by repos path redirecting to LFS if necessary
func SingleDownloadOrLFS(ctx *context.Context) {
blob, lastModified := getBlobForEntry(ctx)
if blob == nil {
return
}
if err := ServeBlobOrLFS(ctx, blob, lastModified); err != nil {
ctx.ServerError("ServeBlobOrLFS", err)
}
}
// DownloadByID download a file by sha1 ID
func DownloadByID(ctx *context.Context) {
blob, err := ctx.Repo.GitRepo.GetBlob(ctx.PathParam("sha"))
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetBlob", nil)
} else {
ctx.ServerError("GetBlob", err)
}
return
}
if err = common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, nil); err != nil {
ctx.ServerError("ServeBlob", err)
}
}
// DownloadByIDOrLFS download a file by sha1 ID taking account of LFS
func DownloadByIDOrLFS(ctx *context.Context) {
blob, err := ctx.Repo.GitRepo.GetBlob(ctx.PathParam("sha"))
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetBlob", nil)
} else {
ctx.ServerError("GetBlob", err)
}
return
}
if err = ServeBlobOrLFS(ctx, blob, nil); err != nil {
ctx.ServerError("ServeBlob", err)
}
}