Signal content length to upstream components when present

.github/actions/go-check-setup/action.yml

@@ -6,7 +6,9 @@ runs:
     - name: Install filecoin-ffi dependencies
       shell: bash
       if: ${{ runner.os == 'Linux' }}
-      run: sudo apt-get install -y libhwloc-dev ocl-icd-opencl-dev
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libhwloc-dev ocl-icd-opencl-dev
     - name: Install filecoin-ffi
       shell: bash
       run: |

.github/actions/go-test-setup/action.yml

@@ -6,7 +6,9 @@ runs:
     - name: Install filecoin-ffi dependencies
       shell: bash
       if: ${{ runner.os == 'Linux' }}
-      run: sudo apt-get install -y libhwloc-dev ocl-icd-opencl-dev
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libhwloc-dev ocl-icd-opencl-dev
     - name: Install filecoin-ffi
       shell: bash
       if: ${{ runner.os == 'Linux' }}

api/server/handler.go

@@ -27,6 +27,7 @@ func (m *HttpServer) handlePostBlob(w http.ResponseWriter, r *http.Request) {
 		respondWithJson(w, errResponseNotStreamContentType, http.StatusBadRequest)
 		return
 	}
+	body := r.Body
 	var contentLength uint64
 	if value := r.Header.Get("Content-Length"); value != "" {
 		var err error
@@ -38,9 +39,14 @@ func (m *HttpServer) handlePostBlob(w http.ResponseWriter, r *http.Request) {
 			respondWithJson(w, errResponseContentLengthTooLarge(m.maxBlobLength), http.StatusBadRequest)
 			return
 		}
+		// Wrap body reader to signal content length to upstream components.
+		body = sizerReadCloser{
+			ReadCloser: r.Body,
+			size:       int64(contentLength),
+		}
 	}
-	defer r.Body.Close()
-	desc, err := m.store.Put(r.Context(), r.Body)
+	defer body.Close()
+	desc, err := m.store.Put(r.Context(), body)
 	switch err {
 	case nil:
 	case blob.ErrBlobTooLarge:

api/server/sizer_reader.go

@@ -0,0 +1,14 @@
+package server
+
+import "io"
+
+var _ interface{ Size() int64 } = (*sizerReadCloser)(nil)
+
+type sizerReadCloser struct {
+	io.ReadCloser
+	size int64
+}
+
+func (s sizerReadCloser) Size() int64 {
+	return s.size
+}