Fill Red Hat CVE data for all distros (#920)

* fix(scan): ignore wp-cli stderr messages (#825) (#915)

* refactor

* feat(report): fill Red Hat CVE data for all distros

* fix lint err

* fix cve judgment (#921)

gost/base.go

@@ -0,0 +1,51 @@
+package gost
+
+import (
+	"fmt"
+	"net/http"
+
+	cnf "github.com/future-architect/vuls/config"
+	"github.com/future-architect/vuls/models"
+	"github.com/knqyf263/gost/db"
+	"github.com/parnurzeal/gorequest"
+	"golang.org/x/xerrors"
+)
+
+// Base is a base struct
+type Base struct {
+}
+
+// FillCVEsWithRedHat fills cve information that has in Gost
+func (b Base) FillCVEsWithRedHat(driver db.DB, r *models.ScanResult) error {
+	return RedHat{}.fillFixed(driver, r)
+}
+
+// CheckHTTPHealth do health check
+func (b Base) CheckHTTPHealth() error {
+	if !cnf.Conf.Gost.IsFetchViaHTTP() {
+		return nil
+	}
+
+	url := fmt.Sprintf("%s/health", cnf.Conf.Gost.URL)
+	var errs []error
+	var resp *http.Response
+	resp, _, errs = gorequest.New().Get(url).End()
+	//  resp, _, errs = gorequest.New().SetDebug(config.Conf.Debug).Get(url).End()
+	//  resp, _, errs = gorequest.New().Proxy(api.httpProxy).Get(url).End()
+	if 0 < len(errs) || resp == nil || resp.StatusCode != 200 {
+		return xerrors.Errorf("Failed to connect to gost server. url: %s, errs: %w", url, errs)
+	}
+	return nil
+}
+
+// CheckIfGostFetched checks if oval entries are in DB by family, release.
+func (b Base) CheckIfGostFetched(driver db.DB, osFamily string) (fetched bool, err error) {
+	//TODO
+	return true, nil
+}
+
+// CheckIfGostFresh checks if oval entries are fresh enough
+func (b Base) CheckIfGostFresh(driver db.DB, osFamily string) (ok bool, err error) {
+	//TODO
+	return true, nil
+}