logs: add new log scrubber (#1346)

pkg/logutil/scrub_test.go

@@ -0,0 +1,31 @@
+package logutil
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/protobuf/types/known/anypb"
+	"google.golang.org/protobuf/types/known/wrapperspb"
+
+	"github.com/pomerium/pomerium/pkg/grpc/user"
+)
+
+func TestScrubber(t *testing.T) {
+	s := NewScrubber("pomerium").Whitelist("user.User", "version", "id")
+	c1, _ := anypb.New(wrapperspb.String("claim1"))
+	u := s.ScrubProto(&user.User{
+		Version: "v1",
+		Id:      "u1",
+		Name:    "name1",
+		Email:   "user@example.com",
+		Claims: map[string]*anypb.Any{
+			"key1": c1,
+		},
+	}).(*user.User)
+
+	assert.Equal(t, "v1", u.Version)
+	assert.Equal(t, "u1", u.Id)
+	assert.Equal(t, s.hmacString("name1"), u.Name)
+	assert.Equal(t, s.hmacString("user@example.com"), u.Email)
+	assert.Equal(t, s.hmacString("claim1"), u.GetClaim("key1"))
+}