refactor: don't use global Config in private func (#1197)

* refactor: cve_client.go

* refactor: don't use global Config in private func

* remove import alias for config

* refactor: dbclient

* refactor: resultDir

* refactor: resultsDir

* refactor

* refactor: gost

* refactor: db client

* refactor: cveDB

* refactor: cvedb

* refactor: exploitDB

* refactor: remove detector/dbclient.go

* refactor: writer

* refactor: syslog writer

* refactor: ips

* refactor: ensureResultDir

* refactor: proxy

* fix(db): call CloseDB

* add integration test

* feat(report): sort array in json

* sort func for json diff

* add build-int to makefile

* add int-rds-redis to makefile

* fix: test case, makefile

* fix makefile

* show cve count after diff

* make diff

* diff -c

* sort exploits in json for diff

* sort metasploit, exploit

detector/msf.go

@@ -0,0 +1,81 @@
+// +build !scanner
+
+package detector
+
+import (
+	"github.com/future-architect/vuls/config"
+	"github.com/future-architect/vuls/logging"
+	"github.com/future-architect/vuls/models"
+	metasploitdb "github.com/takuzoo3868/go-msfdb/db"
+	metasploitmodels "github.com/takuzoo3868/go-msfdb/models"
+	"golang.org/x/xerrors"
+)
+
+// FillWithMetasploit fills metasploit module information that has in module
+func FillWithMetasploit(r *models.ScanResult, cnf config.MetasploitConf) (nMetasploitCve int, err error) {
+
+	driver, locked, err := newMetasploitDB(&cnf)
+	if locked {
+		return 0, xerrors.Errorf("SQLite3 is locked: %s", cnf.GetSQLite3Path())
+	} else if err != nil {
+		return 0, err
+	}
+	defer func() {
+		if err := driver.CloseDB(); err != nil {
+			logging.Log.Errorf("Failed to close DB. err: %+v")
+		}
+	}()
+
+	for cveID, vuln := range r.ScannedCves {
+		if cveID == "" {
+			continue
+		}
+		ms := driver.GetModuleByCveID(cveID)
+		if len(ms) == 0 {
+			continue
+		}
+		modules := ConvertToModelsMsf(ms)
+		vuln.Metasploits = modules
+		r.ScannedCves[cveID] = vuln
+		nMetasploitCve++
+	}
+
+	return nMetasploitCve, nil
+}
+
+// ConvertToModelsMsf converts gost model to vuls model
+func ConvertToModelsMsf(ms []*metasploitmodels.Metasploit) (modules []models.Metasploit) {
+	for _, m := range ms {
+		var links []string
+		if 0 < len(m.References) {
+			for _, u := range m.References {
+				links = append(links, u.Link)
+			}
+		}
+		module := models.Metasploit{
+			Name:        m.Name,
+			Title:       m.Title,
+			Description: m.Description,
+			URLs:        links,
+		}
+		modules = append(modules, module)
+	}
+	return modules
+}
+
+func newMetasploitDB(cnf config.VulnDictInterface) (driver metasploitdb.DB, locked bool, err error) {
+	if cnf.IsFetchViaHTTP() {
+		return nil, false, nil
+	}
+	path := cnf.GetURL()
+	if cnf.GetType() == "sqlite3" {
+		path = cnf.GetSQLite3Path()
+	}
+	if driver, locked, err = metasploitdb.NewDB(cnf.GetType(), path, cnf.GetDebugSQL(), false); err != nil {
+		if locked {
+			return nil, true, xerrors.Errorf("metasploitDB is locked. err: %w", err)
+		}
+		return nil, false, err
+	}
+	return driver, false, nil
+}