mirror of https://github.com/gogs/gogs.git
138 lines
3.6 KiB
Go
138 lines
3.6 KiB
Go
// Copyright 2020 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package lfs
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import (
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"encoding/json"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"strconv"
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"gopkg.in/macaron.v1"
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log "unknwon.dev/clog/v2"
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"gogs.io/gogs/internal/conf"
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"gogs.io/gogs/internal/db"
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"gogs.io/gogs/internal/lfsutil"
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"gogs.io/gogs/internal/strutil"
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)
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const transferBasic = "basic"
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const (
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basicOperationUpload = "upload"
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basicOperationDownload = "download"
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)
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// GET /{owner}/{repo}.git/info/lfs/object/basic/{oid}
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func serveBasicDownload(c *macaron.Context, repo *db.Repository, oid lfsutil.OID) {
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object, err := db.LFS.GetObjectByOID(repo.ID, oid)
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if err != nil {
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if db.IsErrLFSObjectNotExist(err) {
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responseJSON(c.Resp, http.StatusNotFound, responseError{
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Message: "Object does not exist",
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})
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} else {
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internalServerError(c.Resp)
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log.Error("Failed to get object [repo_id: %d, oid: %s]: %v", repo.ID, oid, err)
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}
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return
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}
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fpath := lfsutil.StorageLocalPath(conf.LFS.ObjectsPath, object.OID)
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r, err := os.Open(fpath)
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if err != nil {
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internalServerError(c.Resp)
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log.Error("Failed to open object file [path: %s]: %v", fpath, err)
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return
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}
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defer r.Close()
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c.Header().Set("Content-Type", "application/octet-stream")
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c.Header().Set("Content-Length", strconv.FormatInt(object.Size, 10))
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c.Status(http.StatusOK)
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_, err = io.Copy(c.Resp, r)
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if err != nil {
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log.Error("Failed to copy object file: %v", err)
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return
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}
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}
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// PUT /{owner}/{repo}.git/info/lfs/object/basic/{oid}
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func serveBasicUpload(c *macaron.Context, repo *db.Repository, oid lfsutil.OID) {
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// NOTE: LFS client will retry upload the same object if there was a partial failure,
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// therefore we would like to skip ones that already exist.
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_, err := db.LFS.GetObjectByOID(repo.ID, oid)
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if err == nil {
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// Object exists, drain the request body and we're good.
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_, _ = io.Copy(ioutil.Discard, c.Req.Request.Body)
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c.Req.Request.Body.Close()
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c.Status(http.StatusOK)
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return
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} else if !db.IsErrLFSObjectNotExist(err) {
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internalServerError(c.Resp)
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log.Error("Failed to get object [repo_id: %d, oid: %s]: %v", repo.ID, oid, err)
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return
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}
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err = db.LFS.CreateObject(repo.ID, oid, c.Req.Request.Body, lfsutil.StorageLocal)
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if err != nil {
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internalServerError(c.Resp)
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log.Error("Failed to create object [repo_id: %d, oid: %s]: %v", repo.ID, oid, err)
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return
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}
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c.Status(http.StatusOK)
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log.Trace("[LFS] Object created %q", oid)
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}
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// POST /{owner}/{repo}.git/info/lfs/object/basic/verify
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func serveBasicVerify(c *macaron.Context, repo *db.Repository) {
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var request basicVerifyRequest
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defer c.Req.Request.Body.Close()
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err := json.NewDecoder(c.Req.Request.Body).Decode(&request)
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if err != nil {
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responseJSON(c.Resp, http.StatusBadRequest, responseError{
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Message: strutil.ToUpperFirst(err.Error()),
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})
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return
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}
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if !lfsutil.ValidOID(request.Oid) {
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responseJSON(c.Resp, http.StatusBadRequest, responseError{
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Message: "Invalid oid",
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})
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return
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}
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object, err := db.LFS.GetObjectByOID(repo.ID, lfsutil.OID(request.Oid))
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if err != nil {
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if db.IsErrLFSObjectNotExist(err) {
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responseJSON(c.Resp, http.StatusNotFound, responseError{
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Message: "Object does not exist",
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})
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} else {
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internalServerError(c.Resp)
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log.Error("Failed to get object [repo_id: %d, oid: %s]: %v", repo.ID, request.Oid, err)
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}
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return
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}
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if object.Size != request.Size {
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responseJSON(c.Resp, http.StatusNotFound, responseError{
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Message: "Object size mismatch",
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})
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return
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}
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c.Status(http.StatusOK)
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}
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type basicVerifyRequest struct {
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Oid lfsutil.OID `json:"oid"`
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Size int64 `json:"size"`
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}
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