Detect reject CVE in nvd and jvn (#175)

* implement to remove rejected cves in NVD

* fix(fetcher/jvn): remove reject CVE

fetcher/jvn/xml/jvn.go

@@ -204,10 +204,13 @@ func Fetch(metas []models.FeedMeta) ([]Item, error) {
 			return nil, fmt.Errorf(
 				"Failed to unmarshal. url: %s, err: %s", res.URL, err)
 		}
-		items = append(items, rdf.Items...)
+		for i, item := range rdf.Items {
+			if !(strings.Contains(item.Description, "** 未確定 **") || strings.Contains(item.Description, "** サポート外 **") || strings.Contains(item.Description, "** 削除 **")) {
+				items = append(items, rdf.Items[i])
+			}
+		}
 	}
 	return items, nil
-
 }
 
 // FetchConvert fetches vulnerability information from JVN and convert it to model

fetcher/nvd/json/nvd.go

@@ -38,12 +38,28 @@ func FetchConvert(metas []models.FeedMeta) (cves []models.CveDetail, err error)
 
 	errs := []error{}
 	for _, res := range results {
-		nvd := NvdJSON{}
-		if err = json.Unmarshal(res.Body, &nvd); err != nil {
+		var nvd, nvdIncludeRejectedCve NvdJSON
+		if err = json.Unmarshal(res.Body, &nvdIncludeRejectedCve); err != nil {
 			return nil, fmt.Errorf(
 				"Failed to unmarshal. url: %s, err: %s",
 				res.URL, err)
 		}
+
+		nvd.CveDataType = nvdIncludeRejectedCve.CveDataType
+		nvd.CveDataFormat = nvdIncludeRejectedCve.CveDataFormat
+		nvd.CveDataVersion = nvdIncludeRejectedCve.CveDataVersion
+		nvd.CveDataNumberOfCVEs = nvdIncludeRejectedCve.CveDataNumberOfCVEs
+		nvd.CveDataTimestamp = nvdIncludeRejectedCve.CveDataTimestamp
+
+		// Remove rejected CVEs
+		for i, item := range nvdIncludeRejectedCve.CveItems {
+			for _, description := range item.Cve.Description.DescriptionData {
+				if !(strings.Contains(description.Value, "** REJECT **")) {
+					nvd.CveItems = append(nvd.CveItems, nvdIncludeRejectedCve.CveItems[i])
+				}
+			}
+		}
+
 		cs, err := convert(nvd.CveItems)
 		if err != nil {
 			errs = append(errs, err)