1 files changed, 57 insertions, 0 deletions
diff --git a/workhorse/internal/git/upload-pack.go b/workhorse/internal/git/upload-pack.go
new file mode 100644
index 00000000000..a3dbf2f2e02
--- /dev/null
+++ b/workhorse/internal/git/upload-pack.go
@@ -0,0 +1,57 @@
+package git
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	"gitlab.com/gitlab-org/gitlab-workhorse/internal/api"
+	"gitlab.com/gitlab-org/gitlab-workhorse/internal/gitaly"
+	"gitlab.com/gitlab-org/gitlab-workhorse/internal/helper"
+)
+
+var (
+	uploadPackTimeout = 10 * time.Minute
+)
+
+// Will not return a non-nil error after the response body has been
+// written to.
+func handleUploadPack(w *HttpResponseWriter, r *http.Request, a *api.Response) error {
+	ctx := r.Context()
+
+	// Prevent the client from holding the connection open indefinitely. A
+	// transfer rate of 17KiB/sec is sufficient to send 10MiB of data in
+	// ten minutes, which seems adequate. Most requests will be much smaller.
+	// This mitigates a use-after-check issue.
+	//
+	// We can't reliably interrupt the read from a http handler, but we can
+	// ensure the request will (eventually) fail: https://github.com/golang/go/issues/16100
+	readerCtx, cancel := context.WithTimeout(ctx, uploadPackTimeout)
+	defer cancel()
+
+	limited := helper.NewContextReader(readerCtx, r.Body)
+	cr, cw := helper.NewWriteAfterReader(limited, w)
+	defer cw.Flush()
+
+	action := getService(r)
+	writePostRPCHeader(w, action)
+
+	gitProtocol := r.Header.Get("Git-Protocol")
+
+	return handleUploadPackWithGitaly(ctx, a, cr, cw, gitProtocol)
+}
+
+func handleUploadPackWithGitaly(ctx context.Context, a *api.Response, clientRequest io.Reader, clientResponse io.Writer, gitProtocol string) error {
+	ctx, smarthttp, err := gitaly.NewSmartHTTPClient(ctx, a.GitalyServer)
+	if err != nil {
+		return fmt.Errorf("smarthttp.UploadPack: %v", err)
+	}
+
+	if err := smarthttp.UploadPack(ctx, &a.Repository, clientRequest, clientResponse, gitConfigOptions(a), gitProtocol); err != nil {
+		return fmt.Errorf("smarthttp.UploadPack: %v", err)
+	}
+
+	return nil
+}