feat(fedora): support fedora (#1367)

* feat(fedora): support fedora

* fix(fedora): fix modular package scan

* fix(fedora): check needs-restarting, oval arch, add source link

Co-authored-by: MaineK00n <mainek00n.1229@gmail.com>

scanner/fedora.go

@@ -0,0 +1,116 @@
+package scanner
+
+import (
+	"github.com/future-architect/vuls/config"
+	"github.com/future-architect/vuls/logging"
+	"github.com/future-architect/vuls/models"
+)
+
+// inherit OsTypeInterface
+type fedora struct {
+	redhatBase
+}
+
+// NewFedora is constructor
+func newFedora(c config.ServerInfo) *fedora {
+	r := &fedora{
+		redhatBase{
+			base: base{
+				osPackages: osPackages{
+					Packages:  models.Packages{},
+					VulnInfos: models.VulnInfos{},
+				},
+			},
+			sudo: rootPrivFedora{},
+		},
+	}
+	r.log = logging.NewNormalLogger()
+	r.setServerInfo(c)
+	return r
+}
+
+func (o *fedora) checkScanMode() error {
+	return nil
+}
+
+func (o *fedora) checkDeps() error {
+	if o.getServerInfo().Mode.IsFast() {
+		return o.execCheckDeps(o.depsFast())
+	} else if o.getServerInfo().Mode.IsFastRoot() {
+		return o.execCheckDeps(o.depsFastRoot())
+	} else {
+		return o.execCheckDeps(o.depsDeep())
+	}
+}
+
+func (o *fedora) depsFast() []string {
+	if o.getServerInfo().Mode.IsOffline() {
+		return []string{}
+	}
+
+	// repoquery
+	return []string{"dnf-utils"}
+}
+
+func (o *fedora) depsFastRoot() []string {
+	if o.getServerInfo().Mode.IsOffline() {
+		return []string{}
+	}
+
+	// repoquery
+	return []string{"dnf-utils"}
+}
+
+func (o *fedora) depsDeep() []string {
+	return o.depsFastRoot()
+}
+
+func (o *fedora) checkIfSudoNoPasswd() error {
+	if o.getServerInfo().Mode.IsFast() {
+		return o.execCheckIfSudoNoPasswd(o.sudoNoPasswdCmdsFast())
+	} else if o.getServerInfo().Mode.IsFastRoot() {
+		return o.execCheckIfSudoNoPasswd(o.sudoNoPasswdCmdsFastRoot())
+	} else {
+		return o.execCheckIfSudoNoPasswd(o.sudoNoPasswdCmdsDeep())
+	}
+}
+
+func (o *fedora) sudoNoPasswdCmdsFast() []cmd {
+	return []cmd{}
+}
+
+func (o *fedora) sudoNoPasswdCmdsFastRoot() []cmd {
+	if !o.ServerInfo.IsContainer() {
+		return []cmd{
+			{"repoquery -h", exitStatusZero},
+			{"needs-restarting", exitStatusZero},
+			{"which which", exitStatusZero},
+			{"stat /proc/1/exe", exitStatusZero},
+			{"ls -l /proc/1/exe", exitStatusZero},
+			{"cat /proc/1/maps", exitStatusZero},
+			{"lsof -i -P -n", exitStatusZero},
+		}
+	}
+	return []cmd{
+		{"repoquery -h", exitStatusZero},
+		{"needs-restarting", exitStatusZero},
+	}
+}
+
+func (o *fedora) sudoNoPasswdCmdsDeep() []cmd {
+	return o.sudoNoPasswdCmdsFastRoot()
+}
+
+type rootPrivFedora struct{}
+
+func (o rootPrivFedora) repoquery() bool {
+	return false
+}
+
+func (o rootPrivFedora) yumMakeCache() bool {
+	return false
+}
+
+func (o rootPrivFedora) yumPS() bool {
+	return false
+}