package git import ( "compress/gzip" "context" "fmt" "io" "net/http" "github.com/golang/gddo/httputil" "gitlab.com/gitlab-org/labkit/log" "gitlab.com/gitlab-org/gitlab/workhorse/internal/api" "gitlab.com/gitlab-org/gitlab/workhorse/internal/gitaly" "gitlab.com/gitlab-org/gitlab/workhorse/internal/helper" ) func GetInfoRefsHandler(a *api.API) http.Handler { return repoPreAuthorizeHandler(a, handleGetInfoRefs) } func handleGetInfoRefs(rw http.ResponseWriter, r *http.Request, a *api.Response) { responseWriter := NewHttpResponseWriter(rw) // Log 0 bytes in because we ignore the request body (and there usually is none anyway). defer responseWriter.Log(r, 0) rpc := getService(r) if !(rpc == "git-upload-pack" || rpc == "git-receive-pack") { // The 'dumb' Git HTTP protocol is not supported http.Error(responseWriter, "Not Found", 404) return } responseWriter.Header().Set("Content-Type", fmt.Sprintf("application/x-%s-advertisement", rpc)) responseWriter.Header().Set("Cache-Control", "no-cache") gitProtocol := r.Header.Get("Git-Protocol") offers := []string{"gzip", "identity"} encoding := httputil.NegotiateContentEncoding(r, offers) if err := handleGetInfoRefsWithGitaly(r.Context(), responseWriter, a, rpc, gitProtocol, encoding); err != nil { helper.Fail500(responseWriter, r, fmt.Errorf("handleGetInfoRefs: %v", err)) } } func handleGetInfoRefsWithGitaly(ctx context.Context, responseWriter *HttpResponseWriter, a *api.Response, rpc, gitProtocol, encoding string) error { ctx, smarthttp, err := gitaly.NewSmartHTTPClient(ctx, a.GitalyServer) if err != nil { return fmt.Errorf("GetInfoRefsHandler: %v", err) } infoRefsResponseReader, err := smarthttp.InfoRefsResponseReader(ctx, &a.Repository, rpc, gitConfigOptions(a), gitProtocol) if err != nil { return fmt.Errorf("GetInfoRefsHandler: %v", err) } var w io.Writer if encoding == "gzip" { gzWriter := gzip.NewWriter(responseWriter) w = gzWriter defer gzWriter.Close() responseWriter.Header().Set("Content-Encoding", "gzip") } else { w = responseWriter } if _, err = io.Copy(w, infoRefsResponseReader); err != nil { log.WithError(err).Error("GetInfoRefsHandler: error copying gitaly response") } return nil }