AuthN: Add password and login form stats (#64868)

* add password and login form stats

* fix method handler

* fix viewers can edit test

pkg/services/authn/authnimpl/usage_stats.go

@@ -16,6 +16,8 @@ func (s *Service) getUsageStats(ctx context.Context) (map[string]interface{}, er
 	authTypes["auth_proxy"] = s.cfg.AuthProxyEnabled
 	authTypes["anonymous"] = s.cfg.AnonymousEnabled
 	authTypes["jwt"] = s.cfg.JWTAuthEnabled
+	authTypes["grafana_password"] = !s.cfg.DisableLogin
+	authTypes["login_form"] = !s.cfg.DisableLoginForm
 
 	for authType, enabled := range authTypes {
 		enabledValue := 0

pkg/services/authn/authnimpl/usage_stats_test.go

@@ -0,0 +1,44 @@
+package authnimpl
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/grafana/grafana/pkg/services/authn/authntest"
+)
+
+func TestService_getUsageStats(t *testing.T) {
+	svc := setupTests(t, func(svc *Service) {
+		svc.RegisterClient(
+			&authntest.FakeClient{ExpectedErr: nil, ExpectedName: "test", ExpectedPriority: 1, ExpectedStats: map[string]interface{}{"stats.test.enabled.count": 1}})
+		svc.RegisterClient(
+			&authntest.FakeClient{ExpectedErr: errCantAuthenticateReq, ExpectedName: "failing", ExpectedPriority: 1, ExpectedStats: nil})
+	})
+
+	svc.cfg.DisableLoginForm = false
+	svc.cfg.DisableLogin = false
+	svc.cfg.BasicAuthEnabled = true
+	svc.cfg.AuthProxyEnabled = true
+	svc.cfg.JWTAuthEnabled = true
+	svc.cfg.LDAPEnabled = true
+	svc.cfg.EditorsCanAdmin = true
+	svc.cfg.ViewersCanEdit = true
+
+	got, err := svc.getUsageStats(context.Background())
+	require.NoError(t, err)
+	want := map[string]interface{}{"stats.auth_enabled.anonymous.count": 0,
+		"stats.auth_enabled.auth_proxy.count":       1,
+		"stats.auth_enabled.basic_auth.count":       1,
+		"stats.auth_enabled.grafana_password.count": 1,
+		"stats.auth_enabled.jwt.count":              1,
+		"stats.auth_enabled.ldap.count":             1,
+		"stats.auth_enabled.login_form.count":       1,
+		"stats.authz.editors_can_admin.count":       1,
+		"stats.authz.viewers_can_edit.count":        1,
+		"stats.test.enabled.count":                  1,
+	}
+
+	require.Equal(t, want, got)
+}

pkg/services/authn/authntest/fake.go

@@ -18,6 +18,7 @@ type FakeClient struct {
 	ExpectedTest     bool
 	ExpectedPriority uint
 	ExpectedIdentity *authn.Identity
+	ExpectedStats    map[string]interface{}
 }
 
 func (f *FakeClient) Name() string {
@@ -36,6 +37,10 @@ func (f *FakeClient) Priority() uint {
 	return f.ExpectedPriority
 }
 
+func (f *FakeClient) UsageStatFn(ctx context.Context) (map[string]interface{}, error) {
+	return f.ExpectedStats, f.ExpectedErr
+}
+
 var _ authn.PasswordClient = new(FakePasswordClient)
 
 type FakePasswordClient struct {