[auth] make id-token optional (#97831)

make idtoken optional

enure there is always an identity in the context

fix: update token

fix: now it should work

fix: now it should work

pkg/storage/unified/resource/client_test.go

@@ -0,0 +1,27 @@
+package resource
+
+import (
+	"context"
+	"testing"
+
+	"github.com/grafana/authlib/claims"
+	"github.com/grafana/grafana/pkg/apimachinery/identity"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestIDTokenExtractor(t *testing.T) {
+	t.Run("should return an error when no claims found", func(t *testing.T) {
+		token, err := idTokenExtractor(context.Background())
+		assert.Error(t, err)
+		assert.Empty(t, token)
+	})
+	t.Run("should return an empty token for static requester of type service account as grafana admin ", func(t *testing.T) {
+		ctx := identity.WithRequester(context.Background(), &identity.StaticRequester{
+			Type:           claims.TypeServiceAccount,
+			IsGrafanaAdmin: true,
+		})
+		token, err := idTokenExtractor(ctx)
+		assert.NoError(t, err)
+		assert.Empty(t, token)
+	})
+}