package upload import ( "fmt" "io/ioutil" "net/http" "net/url" "strings" "gitlab.com/gitlab-org/gitlab/workhorse/internal/api" "gitlab.com/gitlab-org/gitlab/workhorse/internal/helper" "gitlab.com/gitlab-org/gitlab/workhorse/internal/upload/destination" ) // RequestBody is a request middleware. It will store the request body to // a location by determined an api.Response value. It then forwards the // request to gitlab-rails without the original request body. func RequestBody(rails PreAuthorizer, h http.Handler, p Preparer) http.Handler { return rails.PreAuthorizeHandler(func(w http.ResponseWriter, r *http.Request, a *api.Response) { opts, err := p.Prepare(a) if err != nil { helper.Fail500(w, r, fmt.Errorf("RequestBody: preparation failed: %v", err)) return } fh, err := destination.Upload(r.Context(), r.Body, r.ContentLength, "upload", opts) if err != nil { helper.Fail500(w, r, fmt.Errorf("RequestBody: upload failed: %v", err)) return } data := url.Values{} fields, err := fh.GitLabFinalizeFields("file") if err != nil { helper.Fail500(w, r, fmt.Errorf("RequestBody: finalize fields failed: %v", err)) return } for k, v := range fields { data.Set(k, v) } // Hijack body body := data.Encode() r.Body = ioutil.NopCloser(strings.NewReader(body)) r.ContentLength = int64(len(body)) r.Header.Set("Content-Type", "application/x-www-form-urlencoded") sft := SavedFileTracker{Request: r} sft.Track("file", fh.LocalPath) if err := sft.Finalize(r.Context()); err != nil { helper.Fail500(w, r, fmt.Errorf("RequestBody: finalize failed: %v", err)) return } // And proxy the request h.ServeHTTP(w, r) }, "/authorize") }