Display metasploit module information for each detected CVE-IDs (#1011)

* add metasploit

* fix go deps

* fix msf report

* fix msfdb server port number

* delete non-unique msfdb url from fulltext report

* fix(report): validate msfdb config on report (#1)

* fix(msfdb): update deps (go-msfdb)

* version up go-msfdb v0.1.0

Co-authored-by: Kota Kanbe <kotakanbe@gmail.com>

msf/msf.go

@@ -0,0 +1,73 @@
+package msf
+
+import (
+	"fmt"
+	"net/http"
+
+	cnf "github.com/future-architect/vuls/config"
+	"github.com/future-architect/vuls/models"
+	"github.com/parnurzeal/gorequest"
+	"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(driver db.DB, r *models.ScanResult) (nMetasploitCve int, err error) {
+	if driver == nil {
+		return 0, nil
+	}
+	for cveID, vuln := range r.ScannedCves {
+		if cveID == "" {
+			continue
+		}
+		ms := driver.GetModuleByCveID(cveID)
+		if len(ms) == 0 {
+			continue
+		}
+		modules := ConvertToModels(ms)
+		vuln.Metasploits = modules
+		r.ScannedCves[cveID] = vuln
+		nMetasploitCve++
+	}
+
+	return nMetasploitCve, nil
+}
+
+// ConvertToModels converts gost model to vuls model
+func ConvertToModels(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
+}
+
+// CheckHTTPHealth do health check
+func CheckHTTPHealth() error {
+	if !cnf.Conf.Metasploit.IsFetchViaHTTP() {
+		return nil
+	}
+
+	url := fmt.Sprintf("%s/health", cnf.Conf.Metasploit.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 metasploit server. url: %s, errs: %w", url, errs)
+	}
+	return nil
+}