mirror of
https://github.com/go-gitea/gitea
synced 2024-08-27 09:42:40 +02:00
171 lines
4.4 KiB
Go
171 lines
4.4 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repo
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import (
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"path"
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"time"
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git_model "code.gitea.io/gitea/models/git"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/httpcache"
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"code.gitea.io/gitea/modules/lfs"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/storage"
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"code.gitea.io/gitea/routers/common"
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)
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// ServeBlobOrLFS download a git.Blob redirecting to LFS if necessary
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func ServeBlobOrLFS(ctx *context.Context, blob *git.Blob, lastModified *time.Time) error {
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if httpcache.HandleGenericETagTimeCache(ctx.Req, ctx.Resp, `"`+blob.ID.String()+`"`, lastModified) {
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return nil
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}
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dataRc, err := blob.DataAsync()
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if err != nil {
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return err
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}
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closed := false
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defer func() {
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if closed {
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return
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}
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if err = dataRc.Close(); err != nil {
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log.Error("ServeBlobOrLFS: Close: %v", err)
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}
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}()
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pointer, _ := lfs.ReadPointer(dataRc)
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if pointer.IsValid() {
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meta, _ := git_model.GetLFSMetaObjectByOid(ctx, ctx.Repo.Repository.ID, pointer.Oid)
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if meta == nil {
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if err = dataRc.Close(); err != nil {
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log.Error("ServeBlobOrLFS: Close: %v", err)
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}
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closed = true
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return common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, lastModified)
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}
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if httpcache.HandleGenericETagCache(ctx.Req, ctx.Resp, `"`+pointer.Oid+`"`) {
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return nil
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}
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if setting.LFS.Storage.MinioConfig.ServeDirect {
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// If we have a signed url (S3, object storage), redirect to this directly.
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u, err := storage.LFS.URL(pointer.RelativePath(), blob.Name())
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if u != nil && err == nil {
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ctx.Redirect(u.String())
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return nil
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}
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}
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lfsDataRc, err := lfs.ReadMetaObject(meta.Pointer)
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if err != nil {
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return err
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}
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defer func() {
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if err = lfsDataRc.Close(); err != nil {
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log.Error("ServeBlobOrLFS: Close: %v", err)
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}
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}()
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common.ServeContentByReadSeeker(ctx.Base, ctx.Repo.TreePath, lastModified, lfsDataRc)
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return nil
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}
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if err = dataRc.Close(); err != nil {
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log.Error("ServeBlobOrLFS: Close: %v", err)
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}
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closed = true
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return common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, lastModified)
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}
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func getBlobForEntry(ctx *context.Context) (blob *git.Blob, lastModified *time.Time) {
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entry, err := ctx.Repo.Commit.GetTreeEntryByPath(ctx.Repo.TreePath)
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if err != nil {
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if git.IsErrNotExist(err) {
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ctx.NotFound("GetTreeEntryByPath", err)
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} else {
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ctx.ServerError("GetTreeEntryByPath", err)
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}
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return nil, nil
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}
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if entry.IsDir() || entry.IsSubModule() {
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ctx.NotFound("getBlobForEntry", nil)
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return nil, nil
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}
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info, _, err := git.Entries([]*git.TreeEntry{entry}).GetCommitsInfo(ctx, ctx.Repo.Commit, path.Dir("/" + ctx.Repo.TreePath)[1:])
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if err != nil {
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ctx.ServerError("GetCommitsInfo", err)
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return nil, nil
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}
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if len(info) == 1 {
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// Not Modified
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lastModified = &info[0].Commit.Committer.When
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}
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blob = entry.Blob()
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return blob, lastModified
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}
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// SingleDownload download a file by repos path
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func SingleDownload(ctx *context.Context) {
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blob, lastModified := getBlobForEntry(ctx)
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if blob == nil {
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return
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}
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if err := common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, lastModified); err != nil {
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ctx.ServerError("ServeBlob", err)
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}
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}
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// SingleDownloadOrLFS download a file by repos path redirecting to LFS if necessary
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func SingleDownloadOrLFS(ctx *context.Context) {
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blob, lastModified := getBlobForEntry(ctx)
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if blob == nil {
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return
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}
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if err := ServeBlobOrLFS(ctx, blob, lastModified); err != nil {
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ctx.ServerError("ServeBlobOrLFS", err)
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}
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}
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// DownloadByID download a file by sha1 ID
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func DownloadByID(ctx *context.Context) {
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blob, err := ctx.Repo.GitRepo.GetBlob(ctx.Params("sha"))
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if err != nil {
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if git.IsErrNotExist(err) {
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ctx.NotFound("GetBlob", nil)
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} else {
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ctx.ServerError("GetBlob", err)
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}
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return
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}
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if err = common.ServeBlob(ctx.Base, ctx.Repo.TreePath, blob, nil); err != nil {
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ctx.ServerError("ServeBlob", err)
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}
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}
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// DownloadByIDOrLFS download a file by sha1 ID taking account of LFS
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func DownloadByIDOrLFS(ctx *context.Context) {
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blob, err := ctx.Repo.GitRepo.GetBlob(ctx.Params("sha"))
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if err != nil {
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if git.IsErrNotExist(err) {
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ctx.NotFound("GetBlob", nil)
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} else {
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ctx.ServerError("GetBlob", err)
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}
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return
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}
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if err = ServeBlobOrLFS(ctx, blob, nil); err != nil {
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ctx.ServerError("ServeBlob", err)
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}
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}
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