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- // 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/context"
- "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"
- )
-
- // 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.MinioConfig.ServeDirect {
- // If we have a signed url (S3, object storage), redirect to this directly.
- u, err := storage.LFS.URL(pointer.RelativePath(), blob.Name())
- 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
- }
-
- if entry.IsDir() || entry.IsSubModule() {
- ctx.NotFound("getBlobForEntry", nil)
- return
- }
-
- 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
- }
-
- 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.Params("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, time.Time{}); 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.Params("sha"))
- if err != nil {
- if git.IsErrNotExist(err) {
- ctx.NotFound("GetBlob", nil)
- } else {
- ctx.ServerError("GetBlob", err)
- }
- return
- }
- if err = ServeBlobOrLFS(ctx, blob, time.Time{}); err != nil {
- ctx.ServerError("ServeBlob", err)
- }
- }
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