feat: add new api services (#5619)

* feat: add new services

* improve demos and comments

* remove unused field

* add comment to demo proto calls

* Apply suggestions from code review

Co-authored-by: Silvan <silvan.reusser@gmail.com>

---------

Co-authored-by: Silvan <silvan.reusser@gmail.com>

internal/api/grpc/user/v2/server.go

@@ -0,0 +1,51 @@
+package user
+
+import (
+	"google.golang.org/grpc"
+
+	"github.com/zitadel/zitadel/internal/api/authz"
+	"github.com/zitadel/zitadel/internal/api/grpc/server"
+	"github.com/zitadel/zitadel/internal/command"
+	"github.com/zitadel/zitadel/internal/query"
+	"github.com/zitadel/zitadel/pkg/grpc/user/v2alpha"
+)
+
+var _ user.UserServiceServer = (*Server)(nil)
+
+type Server struct {
+	user.UnimplementedUserServiceServer
+	command *command.Commands
+	query   *query.Queries
+}
+
+type Config struct{}
+
+func CreateServer(
+	command *command.Commands,
+	query *query.Queries,
+) *Server {
+	return &Server{
+		command: command,
+		query:   query,
+	}
+}
+
+func (s *Server) RegisterServer(grpcServer *grpc.Server) {
+	user.RegisterUserServiceServer(grpcServer, s)
+}
+
+func (s *Server) AppName() string {
+	return user.UserService_ServiceDesc.ServiceName
+}
+
+func (s *Server) MethodPrefix() string {
+	return user.UserService_ServiceDesc.ServiceName
+}
+
+func (s *Server) AuthMethods() authz.MethodMapping {
+	return user.UserService_AuthMethods
+}
+
+func (s *Server) RegisterGateway() server.RegisterGatewayFunc {
+	return user.RegisterUserServiceHandler
+}

internal/api/grpc/user/v2/test.go

@@ -0,0 +1,55 @@
+package user
+
+import (
+	"context"
+
+	"github.com/zitadel/zitadel/internal/api/authz"
+	"github.com/zitadel/zitadel/internal/errors"
+	"github.com/zitadel/zitadel/pkg/grpc/user/v2alpha"
+)
+
+func (s *Server) TestGet(ctx context.Context, req *user.TestGetRequest) (*user.TestGetResponse, error) {
+	return &user.TestGetResponse{
+		Ctx: req.Ctx.String(),
+	}, nil
+}
+
+func (s *Server) TestPost(ctx context.Context, req *user.TestPostRequest) (*user.TestPostResponse, error) {
+	return &user.TestPostResponse{
+		Ctx: req.Ctx.String(),
+	}, nil
+}
+
+func (s *Server) TestAuth(ctx context.Context, req *user.TestAuthRequest) (*user.TestAuthResponse, error) {
+	reqCtx, err := authDemo(ctx, req.Ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &user.TestAuthResponse{
+		User: &user.User{Id: authz.GetCtxData(ctx).UserID},
+		Ctx:  reqCtx,
+	}, nil
+}
+
+func authDemo(ctx context.Context, reqCtx *user.Context) (*user.Context, error) {
+	ro := authz.GetCtxData(ctx).ResourceOwner
+	if reqCtx == nil {
+		return &user.Context{Ctx: &user.Context_OrgId{OrgId: ro}}, nil
+	}
+	switch c := reqCtx.Ctx.(type) {
+	case *user.Context_OrgId:
+		if c.OrgId == ro {
+			return reqCtx, nil
+		}
+		return nil, errors.ThrowPermissionDenied(nil, "USER-dg4g", "Errors.User.NotAllowedOrg")
+	case *user.Context_OrgDomain:
+		if c.OrgDomain == "forbidden.com" {
+			return nil, errors.ThrowPermissionDenied(nil, "USER-SDg4g", "Errors.User.NotAllowedOrg")
+		}
+		return reqCtx, nil
+	case *user.Context_Instance:
+		return reqCtx, nil
+	default:
+		return reqCtx, nil
+	}
+}