grpc: rename internal/grpc to pkg/grpc (#1010)

* grpc: rename internal/grpc to pkg/grpc

* don't ignore pkg dir

* remove debug line

pkg/grpc/user/user.go

@@ -0,0 +1,36 @@
+// Package user contains protobuf types for users.
+package user
+
+import (
+	context "context"
+
+	"github.com/golang/protobuf/ptypes"
+
+	"github.com/pomerium/pomerium/internal/protoutil"
+	"github.com/pomerium/pomerium/pkg/grpc/databroker"
+)
+
+// Get gets a user from the databroker.
+func Get(ctx context.Context, client databroker.DataBrokerServiceClient, userID string) (*User, error) {
+	any, _ := ptypes.MarshalAny(new(User))
+
+	res, err := client.Get(ctx, &databroker.GetRequest{
+		Type: any.GetTypeUrl(),
+		Id:   userID,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	var u User
+	err = ptypes.UnmarshalAny(res.GetRecord().GetData(), &u)
+	if err != nil {
+		return nil, err
+	}
+	return &u, nil
+}
+
+// GetClaim gets a claim.
+func (user *User) GetClaim(claim string) interface{} {
+	return protoutil.AnyToInterface(user.GetClaims()[claim])
+}