Fix container range bug (go-gitea#34795)

Fix go-gitea#34792 and add new tests

Author: wxiaoguang

routers/api/packages/container/container.go

@@ -320,6 +320,7 @@ func PostBlobsUploads(ctx *context.Context) {
 
 // https://github.com/opencontainers/distribution-spec/blob/main/spec.md#pushing-a-blob-in-chunks
 func GetBlobsUpload(ctx *context.Context) {
+	image := ctx.PathParam("image")
 	uuid := ctx.PathParam("uuid")
 
 	upload, err := packages_model.GetBlobUploadByID(ctx, uuid)
@@ -334,6 +335,7 @@ func GetBlobsUpload(ctx *context.Context) {
 
 	// FIXME: undefined behavior when the uploaded content is empty: https://github.com/opencontainers/distribution-spec/issues/578
 	respHeaders := &containerHeaders{
+		Location:   fmt.Sprintf("/v2/%s/%s/blobs/uploads/%s", ctx.Package.Owner.LowerName, image, upload.ID),
 		UploadUUID: upload.ID,
 		Status:     http.StatusNoContent,
 	}
@@ -386,7 +388,7 @@ func PatchBlobsUpload(ctx *context.Context) {
 		UploadUUID: uploader.ID,
 		Status:     http.StatusAccepted,
 	}
-	if contentRange != "" {
+	if uploader.Size() > 0 {
 		respHeaders.Range = fmt.Sprintf("0-%d", uploader.Size()-1)
 	}
 	setResponseHeaders(ctx.Resp, respHeaders)

tests/integration/api_packages_container_test.go

@@ -297,11 +297,22 @@ func TestPackageContainer(t *testing.T) {
 					SetHeader("Content-Range", "1-10")
 				MakeRequest(t, req, http.StatusRequestedRangeNotSatisfiable)
 
-				contentRange := fmt.Sprintf("0-%d", len(blobContent)-1)
-				req.SetHeader("Content-Range", contentRange)
+				// first patch without Content-Range
+				req = NewRequestWithBody(t, "PATCH", setting.AppURL+uploadURL[1:], bytes.NewReader(blobContent[:1])).
+					AddTokenAuth(userToken)
+				resp = MakeRequest(t, req, http.StatusAccepted)
+				assert.NotEmpty(t, resp.Header().Get("Location"))
+				assert.Equal(t, "0-0", resp.Header().Get("Range"))
+
+				// then send remaining content with Content-Range
+				req = NewRequestWithBody(t, "PATCH", setting.AppURL+uploadURL[1:], bytes.NewReader(blobContent[1:])).
+					SetHeader("Content-Range", fmt.Sprintf("1-%d", len(blobContent)-1)).
+					AddTokenAuth(userToken)
 				resp = MakeRequest(t, req, http.StatusAccepted)
 
+				contentRange := fmt.Sprintf("0-%d", len(blobContent)-1)
 				assert.Equal(t, uuid, resp.Header().Get("Docker-Upload-Uuid"))
+				assert.NotEmpty(t, resp.Header().Get("Location"))
 				assert.Equal(t, contentRange, resp.Header().Get("Range"))
 
 				uploadURL = resp.Header().Get("Location")
@@ -311,6 +322,7 @@ func TestPackageContainer(t *testing.T) {
 				resp = MakeRequest(t, req, http.StatusNoContent)
 
 				assert.Equal(t, uuid, resp.Header().Get("Docker-Upload-Uuid"))
+				assert.Equal(t, uploadURL, resp.Header().Get("Location"))
 				assert.Equal(t, contentRange, resp.Header().Get("Range"))
 
 				pbu, err = packages_model.GetBlobUploadByID(db.DefaultContext, uuid)