NOISSUE - Seperate PAT from policy (#3330)

Signed-off-by: nyagamunene <stevenyaga2014@gmail.com>
Signed-off-by: Arvindh <arvindh91@gmail.com>
Co-authored-by: Arvindh <arvindh91@gmail.com>

api/grpc/auth/v1/auth.pb.go

@@ -147,11 +147,6 @@ type PolicyReq struct {
 	Permission      string                 `protobuf:"bytes,7,opt,name=permission,proto3" json:"permission,omitempty"`
 	Object          string                 `protobuf:"bytes,8,opt,name=object,proto3" json:"object,omitempty"`
 	ObjectType      string                 `protobuf:"bytes,9,opt,name=object_type,json=objectType,proto3" json:"object_type,omitempty"`
-	PatId           string                 `protobuf:"bytes,10,opt,name=pat_id,json=patId,proto3" json:"pat_id,omitempty"`
-	Operation       string                 `protobuf:"bytes,11,opt,name=operation,proto3" json:"operation,omitempty"`
-	UserId          string                 `protobuf:"bytes,12,opt,name=user_id,json=userId,proto3" json:"user_id,omitempty"`
-	EntityId        string                 `protobuf:"bytes,13,opt,name=entity_id,json=entityId,proto3" json:"entity_id,omitempty"`
-	EntityType      string                 `protobuf:"bytes,14,opt,name=entity_type,json=entityType,proto3" json:"entity_type,omitempty"`
 	unknownFields   protoimpl.UnknownFields
 	sizeCache       protoimpl.SizeCache
 }
@@ -249,41 +244,142 @@ func (x *PolicyReq) GetObjectType() string {
 	return ""
 }
 
-func (x *PolicyReq) GetPatId() string {
+type PATReq struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	PatId         string                 `protobuf:"bytes,1,opt,name=pat_id,json=patId,proto3" json:"pat_id,omitempty"`
+	Domain        string                 `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
+	Operation     string                 `protobuf:"bytes,3,opt,name=operation,proto3" json:"operation,omitempty"`
+	UserId        string                 `protobuf:"bytes,4,opt,name=user_id,json=userId,proto3" json:"user_id,omitempty"`
+	EntityId      string                 `protobuf:"bytes,5,opt,name=entity_id,json=entityId,proto3" json:"entity_id,omitempty"`
+	EntityType    string                 `protobuf:"bytes,6,opt,name=entity_type,json=entityType,proto3" json:"entity_type,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *PATReq) Reset() {
+	*x = PATReq{}
+	mi := &file_auth_v1_auth_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *PATReq) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PATReq) ProtoMessage() {}
+
+func (x *PATReq) ProtoReflect() protoreflect.Message {
+	mi := &file_auth_v1_auth_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PATReq.ProtoReflect.Descriptor instead.
+func (*PATReq) Descriptor() ([]byte, []int) {
+	return file_auth_v1_auth_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *PATReq) GetPatId() string {
 	if x != nil {
 		return x.PatId
 	}
 	return ""
 }
 
-func (x *PolicyReq) GetOperation() string {
+func (x *PATReq) GetDomain() string {
+	if x != nil {
+		return x.Domain
+	}
+	return ""
+}
+
+func (x *PATReq) GetOperation() string {
 	if x != nil {
 		return x.Operation
 	}
 	return ""
 }
 
-func (x *PolicyReq) GetUserId() string {
+func (x *PATReq) GetUserId() string {
 	if x != nil {
 		return x.UserId
 	}
 	return ""
 }
 
-func (x *PolicyReq) GetEntityId() string {
+func (x *PATReq) GetEntityId() string {
 	if x != nil {
 		return x.EntityId
 	}
 	return ""
 }
 
-func (x *PolicyReq) GetEntityType() string {
+func (x *PATReq) GetEntityType() string {
 	if x != nil {
 		return x.EntityType
 	}
 	return ""
 }
 
+type AuthZReq struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	PolicyReq     *PolicyReq             `protobuf:"bytes,1,opt,name=policy_req,json=policyReq,proto3" json:"policy_req,omitempty"`
+	PatReq        *PATReq                `protobuf:"bytes,2,opt,name=pat_req,json=patReq,proto3,oneof" json:"pat_req,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *AuthZReq) Reset() {
+	*x = AuthZReq{}
+	mi := &file_auth_v1_auth_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *AuthZReq) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AuthZReq) ProtoMessage() {}
+
+func (x *AuthZReq) ProtoReflect() protoreflect.Message {
+	mi := &file_auth_v1_auth_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AuthZReq.ProtoReflect.Descriptor instead.
+func (*AuthZReq) Descriptor() ([]byte, []int) {
+	return file_auth_v1_auth_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *AuthZReq) GetPolicyReq() *PolicyReq {
+	if x != nil {
+		return x.PolicyReq
+	}
+	return nil
+}
+
+func (x *AuthZReq) GetPatReq() *PATReq {
+	if x != nil {
+		return x.PatReq
+	}
+	return nil
+}
+
 type AuthZRes struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	Authorized    bool                   `protobuf:"varint,1,opt,name=authorized,proto3" json:"authorized,omitempty"`
@@ -294,7 +390,7 @@ type AuthZRes struct {
 
 func (x *AuthZRes) Reset() {
 	*x = AuthZRes{}
-	mi := &file_auth_v1_auth_proto_msgTypes[3]
+	mi := &file_auth_v1_auth_proto_msgTypes[5]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -306,7 +402,7 @@ func (x *AuthZRes) String() string {
 func (*AuthZRes) ProtoMessage() {}
 
 func (x *AuthZRes) ProtoReflect() protoreflect.Message {
-	mi := &file_auth_v1_auth_proto_msgTypes[3]
+	mi := &file_auth_v1_auth_proto_msgTypes[5]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -319,7 +415,7 @@ func (x *AuthZRes) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AuthZRes.ProtoReflect.Descriptor instead.
 func (*AuthZRes) Descriptor() ([]byte, []int) {
-	return file_auth_v1_auth_proto_rawDescGZIP(), []int{3}
+	return file_auth_v1_auth_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *AuthZRes) GetAuthorized() bool {
@@ -347,7 +443,7 @@ const file_auth_v1_auth_proto_rawDesc = "" +
 	"\x02id\x18\x01 \x01(\tR\x02id\x12\x17\n" +
 	"\auser_id\x18\x02 \x01(\tR\x06userId\x12\x1b\n" +
 	"\tuser_role\x18\x03 \x01(\rR\buserRole\x12\x1a\n" +
-	"\bverified\x18\x04 \x01(\bR\bverified\"\xaf\x03\n" +
+	"\bverified\x18\x04 \x01(\bR\bverified\"\xa3\x02\n" +
 	"\tPolicyReq\x12\x16\n" +
 	"\x06domain\x18\x01 \x01(\tR\x06domain\x12!\n" +
 	"\fsubject_type\x18\x02 \x01(\tR\vsubjectType\x12!\n" +
@@ -360,21 +456,28 @@ const file_auth_v1_auth_proto_rawDesc = "" +
 	"permission\x12\x16\n" +
 	"\x06object\x18\b \x01(\tR\x06object\x12\x1f\n" +
 	"\vobject_type\x18\t \x01(\tR\n" +
-	"objectType\x12\x15\n" +
-	"\x06pat_id\x18\n" +
-	" \x01(\tR\x05patId\x12\x1c\n" +
-	"\toperation\x18\v \x01(\tR\toperation\x12\x17\n" +
-	"\auser_id\x18\f \x01(\tR\x06userId\x12\x1b\n" +
-	"\tentity_id\x18\r \x01(\tR\bentityId\x12\x1f\n" +
-	"\ventity_type\x18\x0e \x01(\tR\n" +
-	"entityType\":\n" +
+	"objectType\"\xac\x01\n" +
+	"\x06PATReq\x12\x15\n" +
+	"\x06pat_id\x18\x01 \x01(\tR\x05patId\x12\x16\n" +
+	"\x06domain\x18\x02 \x01(\tR\x06domain\x12\x1c\n" +
+	"\toperation\x18\x03 \x01(\tR\toperation\x12\x17\n" +
+	"\auser_id\x18\x04 \x01(\tR\x06userId\x12\x1b\n" +
+	"\tentity_id\x18\x05 \x01(\tR\bentityId\x12\x1f\n" +
+	"\ventity_type\x18\x06 \x01(\tR\n" +
+	"entityType\"x\n" +
+	"\bAuthZReq\x121\n" +
+	"\n" +
+	"policy_req\x18\x01 \x01(\v2\x12.auth.v1.PolicyReqR\tpolicyReq\x12-\n" +
+	"\apat_req\x18\x02 \x01(\v2\x0f.auth.v1.PATReqH\x00R\x06patReq\x88\x01\x01B\n" +
+	"\n" +
+	"\b_pat_req\":\n" +
 	"\bAuthZRes\x12\x1e\n" +
 	"\n" +
 	"authorized\x18\x01 \x01(\bR\n" +
 	"authorized\x12\x0e\n" +
-	"\x02id\x18\x02 \x01(\tR\x02id2{\n" +
-	"\vAuthService\x124\n" +
-	"\tAuthorize\x12\x12.auth.v1.PolicyReq\x1a\x11.auth.v1.AuthZRes\"\x00\x126\n" +
+	"\x02id\x18\x02 \x01(\tR\x02id2z\n" +
+	"\vAuthService\x123\n" +
+	"\tAuthorize\x12\x11.auth.v1.AuthZReq\x1a\x11.auth.v1.AuthZRes\"\x00\x126\n" +
 	"\fAuthenticate\x12\x11.auth.v1.AuthNReq\x1a\x11.auth.v1.AuthNRes\"\x00B-Z+github.com/absmach/supermq/api/grpc/auth/v1b\x06proto3"
 
 var (
@@ -389,23 +492,27 @@ func file_auth_v1_auth_proto_rawDescGZIP() []byte {
 	return file_auth_v1_auth_proto_rawDescData
 }
 
-var file_auth_v1_auth_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_auth_v1_auth_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
 var file_auth_v1_auth_proto_goTypes = []any{
 	(*AuthNReq)(nil),  // 0: auth.v1.AuthNReq
 	(*AuthNRes)(nil),  // 1: auth.v1.AuthNRes
 	(*PolicyReq)(nil), // 2: auth.v1.PolicyReq
-	(*AuthZRes)(nil),  // 3: auth.v1.AuthZRes
+	(*PATReq)(nil),    // 3: auth.v1.PATReq
+	(*AuthZReq)(nil),  // 4: auth.v1.AuthZReq
+	(*AuthZRes)(nil),  // 5: auth.v1.AuthZRes
 }
 var file_auth_v1_auth_proto_depIdxs = []int32{
-	2, // 0: auth.v1.AuthService.Authorize:input_type -> auth.v1.PolicyReq
-	0, // 1: auth.v1.AuthService.Authenticate:input_type -> auth.v1.AuthNReq
-	3, // 2: auth.v1.AuthService.Authorize:output_type -> auth.v1.AuthZRes
-	1, // 3: auth.v1.AuthService.Authenticate:output_type -> auth.v1.AuthNRes
-	2, // [2:4] is the sub-list for method output_type
-	0, // [0:2] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
+	2, // 0: auth.v1.AuthZReq.policy_req:type_name -> auth.v1.PolicyReq
+	3, // 1: auth.v1.AuthZReq.pat_req:type_name -> auth.v1.PATReq
+	4, // 2: auth.v1.AuthService.Authorize:input_type -> auth.v1.AuthZReq
+	0, // 3: auth.v1.AuthService.Authenticate:input_type -> auth.v1.AuthNReq
+	5, // 4: auth.v1.AuthService.Authorize:output_type -> auth.v1.AuthZRes
+	1, // 5: auth.v1.AuthService.Authenticate:output_type -> auth.v1.AuthNRes
+	4, // [4:6] is the sub-list for method output_type
+	2, // [2:4] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
 }
 
 func init() { file_auth_v1_auth_proto_init() }
@@ -413,13 +520,14 @@ func file_auth_v1_auth_proto_init() {
 	if File_auth_v1_auth_proto != nil {
 		return
 	}
+	file_auth_v1_auth_proto_msgTypes[4].OneofWrappers = []any{}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: unsafe.Slice(unsafe.StringData(file_auth_v1_auth_proto_rawDesc), len(file_auth_v1_auth_proto_rawDesc)),
 			NumEnums:      0,
-			NumMessages:   4,
+			NumMessages:   6,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

api/grpc/auth/v1/auth_grpc.pb.go

@@ -33,7 +33,7 @@ const (
 // AuthService is a service that provides authentication
 // and authorization functionalities for SuperMQ services.
 type AuthServiceClient interface {
-	Authorize(ctx context.Context, in *PolicyReq, opts ...grpc.CallOption) (*AuthZRes, error)
+	Authorize(ctx context.Context, in *AuthZReq, opts ...grpc.CallOption) (*AuthZRes, error)
 	Authenticate(ctx context.Context, in *AuthNReq, opts ...grpc.CallOption) (*AuthNRes, error)
 }
 
@@ -45,7 +45,7 @@ func NewAuthServiceClient(cc grpc.ClientConnInterface) AuthServiceClient {
 	return &authServiceClient{cc}
 }
 
-func (c *authServiceClient) Authorize(ctx context.Context, in *PolicyReq, opts ...grpc.CallOption) (*AuthZRes, error) {
+func (c *authServiceClient) Authorize(ctx context.Context, in *AuthZReq, opts ...grpc.CallOption) (*AuthZRes, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(AuthZRes)
 	err := c.cc.Invoke(ctx, AuthService_Authorize_FullMethodName, in, out, cOpts...)
@@ -72,7 +72,7 @@ func (c *authServiceClient) Authenticate(ctx context.Context, in *AuthNReq, opts
 // AuthService is a service that provides authentication
 // and authorization functionalities for SuperMQ services.
 type AuthServiceServer interface {
-	Authorize(context.Context, *PolicyReq) (*AuthZRes, error)
+	Authorize(context.Context, *AuthZReq) (*AuthZRes, error)
 	Authenticate(context.Context, *AuthNReq) (*AuthNRes, error)
 	mustEmbedUnimplementedAuthServiceServer()
 }
@@ -84,7 +84,7 @@ type AuthServiceServer interface {
 // pointer dereference when methods are called.
 type UnimplementedAuthServiceServer struct{}
 
-func (UnimplementedAuthServiceServer) Authorize(context.Context, *PolicyReq) (*AuthZRes, error) {
+func (UnimplementedAuthServiceServer) Authorize(context.Context, *AuthZReq) (*AuthZRes, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Authorize not implemented")
 }
 func (UnimplementedAuthServiceServer) Authenticate(context.Context, *AuthNReq) (*AuthNRes, error) {
@@ -112,7 +112,7 @@ func RegisterAuthServiceServer(s grpc.ServiceRegistrar, srv AuthServiceServer) {
 }
 
 func _AuthService_Authorize_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(PolicyReq)
+	in := new(AuthZReq)
 	if err := dec(in); err != nil {
 		return nil, err
 	}
@@ -124,7 +124,7 @@ func _AuthService_Authorize_Handler(srv interface{}, ctx context.Context, dec fu
 		FullMethod: AuthService_Authorize_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(AuthServiceServer).Authorize(ctx, req.(*PolicyReq))
+		return srv.(AuthServiceServer).Authorize(ctx, req.(*AuthZReq))
 	}
 	return interceptor(ctx, in, info, handler)
 }

auth/api/grpc/auth/client.go

@@ -70,27 +70,35 @@ func decodeIdentifyResponse(_ context.Context, grpcRes any) (any, error) {
 	return authenticateRes{id: res.GetId(), userID: res.GetUserId(), userRole: auth.Role(res.UserRole), verified: res.GetVerified()}, nil
 }
 
-func (client authGrpcClient) Authorize(ctx context.Context, req *grpcAuthV1.PolicyReq, _ ...grpc.CallOption) (r *grpcAuthV1.AuthZRes, err error) {
+func (client authGrpcClient) Authorize(ctx context.Context, req *grpcAuthV1.AuthZReq, _ ...grpc.CallOption) (r *grpcAuthV1.AuthZRes, err error) {
 	ctx, cancel := context.WithTimeout(ctx, client.timeout)
 	defer cancel()
 
 	var authReqData authReq
 
 	if req != nil {
-		authReqData = authReq{
-			Domain:      req.GetDomain(),
-			SubjectType: req.GetSubjectType(),
-			Subject:     req.GetSubject(),
-			SubjectKind: req.GetSubjectKind(),
-			Relation:    req.GetRelation(),
-			Permission:  req.GetPermission(),
-			ObjectType:  req.GetObjectType(),
-			Object:      req.GetObject(),
-			UserID:      req.GetUserId(),
-			PatID:       req.GetPatId(),
-			EntityType:  req.GetEntityType(),
-			Operation:   req.GetOperation(),
-			EntityID:    req.GetEntityId(),
+		policyReq := req.GetPolicyReq()
+		patReq := req.GetPatReq()
+
+		if policyReq != nil {
+			authReqData = authReq{
+				Domain:      policyReq.GetDomain(),
+				SubjectType: policyReq.GetSubjectType(),
+				Subject:     policyReq.GetSubject(),
+				SubjectKind: policyReq.GetSubjectKind(),
+				Relation:    policyReq.GetRelation(),
+				Permission:  policyReq.GetPermission(),
+				ObjectType:  policyReq.GetObjectType(),
+				Object:      policyReq.GetObject(),
+			}
+		}
+
+		if patReq != nil {
+			authReqData.UserID = patReq.GetUserId()
+			authReqData.PatID = patReq.GetPatId()
+			authReqData.EntityType = patReq.GetEntityType()
+			authReqData.Operation = patReq.GetOperation()
+			authReqData.EntityID = patReq.GetEntityId()
 		}
 	}
 
@@ -111,19 +119,29 @@ func decodeAuthorizeResponse(_ context.Context, grpcRes any) (any, error) {
 func encodeAuthorizeRequest(_ context.Context, grpcReq any) (any, error) {
 	req := grpcReq.(authReq)
 
-	return &grpcAuthV1.PolicyReq{
-		Domain:      req.Domain,
-		SubjectType: req.SubjectType,
-		Subject:     req.Subject,
-		SubjectKind: req.SubjectKind,
-		Relation:    req.Relation,
-		Permission:  req.Permission,
-		ObjectType:  req.ObjectType,
-		Object:      req.Object,
-		UserId:      req.UserID,
-		PatId:       req.PatID,
-		EntityType:  req.EntityType,
-		Operation:   req.Operation,
-		EntityId:    req.EntityID,
-	}, nil
+	authZReq := &grpcAuthV1.AuthZReq{
+		PolicyReq: &grpcAuthV1.PolicyReq{
+			Domain:      req.Domain,
+			SubjectType: req.SubjectType,
+			Subject:     req.Subject,
+			SubjectKind: req.SubjectKind,
+			Relation:    req.Relation,
+			Permission:  req.Permission,
+			ObjectType:  req.ObjectType,
+			Object:      req.Object,
+		},
+	}
+
+	if req.PatID != "" {
+		authZReq.PatReq = &grpcAuthV1.PATReq{
+			PatId:      req.PatID,
+			Domain:     req.Domain,
+			Operation:  req.Operation,
+			UserId:     req.UserID,
+			EntityId:   req.EntityID,
+			EntityType: req.EntityType,
+		}
+	}
+
+	return authZReq, nil
 }

auth/api/grpc/auth/endpoint.go

@@ -35,6 +35,22 @@ func authorizeEndpoint(svc auth.Service) endpoint.Endpoint {
 			return authorizeRes{}, err
 		}
 
+		var pat *auth.PATAuthz
+		if req.PatID != "" {
+			entityType, err := auth.ParseEntityType(req.EntityType)
+			if err != nil {
+				return authorizeRes{authorized: false}, err
+			}
+			pat = &auth.PATAuthz{
+				PatID:      req.PatID,
+				UserID:     req.UserID,
+				EntityType: entityType,
+				EntityID:   req.EntityID,
+				Operation:  req.Operation,
+				Domain:     req.Domain,
+			}
+		}
+
 		err := svc.Authorize(ctx, policies.Policy{
 			Domain:      req.Domain,
 			SubjectType: req.SubjectType,
@@ -44,12 +60,7 @@ func authorizeEndpoint(svc auth.Service) endpoint.Endpoint {
 			Permission:  req.Permission,
 			ObjectType:  req.ObjectType,
 			Object:      req.Object,
-			PatID:       req.PatID,
-			Operation:   req.Operation,
-			UserID:      req.UserID,
-			EntityType:  req.EntityType,
-			EntityID:    req.EntityID,
-		})
+		}, pat)
 		if err != nil {
 			return authorizeRes{authorized: false}, err
 		}

auth/api/grpc/auth/endpoint_test.go

@@ -129,20 +129,22 @@ func TestAuthorize(t *testing.T) {
 	cases := []struct {
 		desc         string
 		token        string
-		authRequest  *grpcAuthV1.PolicyReq
+		authRequest  *grpcAuthV1.AuthZReq
 		authResponse *grpcAuthV1.AuthZRes
 		err          error
 	}{
 		{
 			desc:  "authorize user with authorized token",
 			token: validToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: usersType,
-				Object:      authoritiesObj,
-				ObjectType:  usersType,
-				Relation:    memberRelation,
-				Permission:  adminPermission,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: usersType,
+					Object:      authoritiesObj,
+					ObjectType:  usersType,
+					Relation:    memberRelation,
+					Permission:  adminPermission,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: true},
 			err:          nil,
@@ -150,13 +152,15 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with unauthorized token",
 			token: inValidToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: usersType,
-				Object:      authoritiesObj,
-				ObjectType:  usersType,
-				Relation:    memberRelation,
-				Permission:  adminPermission,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: usersType,
+					Object:      authoritiesObj,
+					ObjectType:  usersType,
+					Relation:    memberRelation,
+					Permission:  adminPermission,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          svcerr.ErrAuthorization,
@@ -164,13 +168,15 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with empty subject",
 			token: validToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     "",
-				SubjectType: usersType,
-				Object:      authoritiesObj,
-				ObjectType:  usersType,
-				Relation:    memberRelation,
-				Permission:  adminPermission,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     "",
+					SubjectType: usersType,
+					Object:      authoritiesObj,
+					ObjectType:  usersType,
+					Relation:    memberRelation,
+					Permission:  adminPermission,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          apiutil.ErrMissingPolicySub,
@@ -178,13 +184,15 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with empty subject type",
 			token: validToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: "",
-				Object:      authoritiesObj,
-				ObjectType:  usersType,
-				Relation:    memberRelation,
-				Permission:  adminPermission,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: "",
+					Object:      authoritiesObj,
+					ObjectType:  usersType,
+					Relation:    memberRelation,
+					Permission:  adminPermission,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          apiutil.ErrMissingPolicySub,
@@ -192,13 +200,15 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with empty object",
 			token: validToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: usersType,
-				Object:      "",
-				ObjectType:  usersType,
-				Relation:    memberRelation,
-				Permission:  adminPermission,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: usersType,
+					Object:      "",
+					ObjectType:  usersType,
+					Relation:    memberRelation,
+					Permission:  adminPermission,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          apiutil.ErrMissingPolicyObj,
@@ -206,13 +216,15 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with empty object type",
 			token: validToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: usersType,
-				Object:      authoritiesObj,
-				ObjectType:  "",
-				Relation:    memberRelation,
-				Permission:  adminPermission,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: usersType,
+					Object:      authoritiesObj,
+					ObjectType:  "",
+					Relation:    memberRelation,
+					Permission:  adminPermission,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          apiutil.ErrMissingPolicyObj,
@@ -220,13 +232,15 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with empty permission",
 			token: validToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: usersType,
-				Object:      authoritiesObj,
-				ObjectType:  usersType,
-				Relation:    memberRelation,
-				Permission:  "",
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: usersType,
+					Object:      authoritiesObj,
+					ObjectType:  usersType,
+					Relation:    memberRelation,
+					Permission:  "",
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          apiutil.ErrMalformedPolicyPer,
@@ -234,19 +248,24 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with valid PAT token",
 			token: validPATToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: policies.UserType,
-				SubjectKind: policies.UsersKind,
-				Permission:  policies.ViewPermission,
-				PatId:       id,
-				ObjectType:  policies.ClientType,
-				Domain:      domainID,
-				Operation:   "view",
-				Object:      clientID,
-				UserId:      id,
-				EntityId:    clientID,
-				EntityType:  auth.ClientsScopeStr,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: policies.UserType,
+					SubjectKind: policies.UsersKind,
+					Permission:  policies.ViewPermission,
+					ObjectType:  policies.ClientType,
+					Domain:      domainID,
+					Object:      clientID,
+				},
+				PatReq: &grpcAuthV1.PATReq{
+					PatId:      id,
+					Domain:     domainID,
+					Operation:  "view",
+					UserId:     id,
+					EntityId:   clientID,
+					EntityType: auth.ClientsScopeStr,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: true},
 			err:          nil,
@@ -254,19 +273,24 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize user with unauthorized PAT token",
 			token: inValidToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: policies.UserType,
-				SubjectKind: policies.UsersKind,
-				Permission:  policies.ViewPermission,
-				PatId:       id,
-				ObjectType:  policies.ClientType,
-				Domain:      domainID,
-				Operation:   "view",
-				Object:      clientID,
-				UserId:      id,
-				EntityId:    clientID,
-				EntityType:  auth.ClientsScopeStr,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: policies.UserType,
+					SubjectKind: policies.UsersKind,
+					Permission:  policies.ViewPermission,
+					ObjectType:  policies.ClientType,
+					Domain:      domainID,
+					Object:      clientID,
+				},
+				PatReq: &grpcAuthV1.PATReq{
+					PatId:      id,
+					Domain:     domainID,
+					Operation:  "view",
+					UserId:     id,
+					EntityId:   clientID,
+					EntityType: auth.ClientsScopeStr,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          svcerr.ErrAuthorization,
@@ -274,18 +298,23 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize PAT with missing user id",
 			token: validPATToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: policies.UserType,
-				SubjectKind: policies.UsersKind,
-				Permission:  policies.ViewPermission,
-				PatId:       id,
-				ObjectType:  policies.ClientType,
-				Domain:      domainID,
-				Operation:   "view",
-				Object:      clientID,
-				EntityId:    clientID,
-				EntityType:  auth.ClientsScopeStr,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: policies.UserType,
+					SubjectKind: policies.UsersKind,
+					Permission:  policies.ViewPermission,
+					ObjectType:  policies.ClientType,
+					Domain:      domainID,
+					Object:      clientID,
+				},
+				PatReq: &grpcAuthV1.PATReq{
+					PatId:      id,
+					Domain:     domainID,
+					Operation:  "view",
+					EntityId:   clientID,
+					EntityType: auth.ClientsScopeStr,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          apiutil.ErrMissingUserID,
@@ -293,18 +322,23 @@ func TestAuthorize(t *testing.T) {
 		{
 			desc:  "authorize PAT with missing entity id",
 			token: validPATToken,
-			authRequest: &grpcAuthV1.PolicyReq{
-				Subject:     id,
-				SubjectType: policies.UserType,
-				SubjectKind: policies.UsersKind,
-				Permission:  policies.ViewPermission,
-				PatId:       id,
-				ObjectType:  policies.ClientType,
-				Domain:      domainID,
-				Operation:   "view",
-				Object:      clientID,
-				UserId:      id,
-				EntityType:  auth.ClientsScopeStr,
+			authRequest: &grpcAuthV1.AuthZReq{
+				PolicyReq: &grpcAuthV1.PolicyReq{
+					Subject:     id,
+					SubjectType: policies.UserType,
+					SubjectKind: policies.UsersKind,
+					Permission:  policies.ViewPermission,
+					ObjectType:  policies.ClientType,
+					Domain:      domainID,
+					Object:      clientID,
+				},
+				PatReq: &grpcAuthV1.PATReq{
+					PatId:      id,
+					Domain:     domainID,
+					Operation:  "view",
+					UserId:     id,
+					EntityType: auth.ClientsScopeStr,
+				},
 			},
 			authResponse: &grpcAuthV1.AuthZRes{Authorized: false},
 			err:          apiutil.ErrMissingID,
@@ -312,7 +346,7 @@ func TestAuthorize(t *testing.T) {
 	}
 	for _, tc := range cases {
 		t.Run(tc.desc, func(t *testing.T) {
-			svcCall := svc.On("Authorize", mock.Anything, mock.Anything).Return(tc.err)
+			svcCall := svc.On("Authorize", mock.Anything, mock.Anything, mock.Anything).Return(tc.err)
 			ar, err := grpcClient.Authorize(context.Background(), tc.authRequest)
 			if ar != nil {
 				assert.Equal(t, tc.authResponse, ar, fmt.Sprintf("%s: expected %v got %v", tc.desc, tc.authResponse, ar))

auth/api/grpc/auth/server.go

@@ -45,7 +45,7 @@ func (s *authGrpcServer) Authenticate(ctx context.Context, req *grpcAuthV1.AuthN
 	return res.(*grpcAuthV1.AuthNRes), nil
 }
 
-func (s *authGrpcServer) Authorize(ctx context.Context, req *grpcAuthV1.PolicyReq) (*grpcAuthV1.AuthZRes, error) {
+func (s *authGrpcServer) Authorize(ctx context.Context, req *grpcAuthV1.AuthZReq) (*grpcAuthV1.AuthZRes, error) {
 	_, res, err := s.authorize.ServeGRPC(ctx, req)
 	if err != nil {
 		return nil, grpcapi.EncodeError(err)
@@ -64,26 +64,38 @@ func encodeAuthenticateResponse(_ context.Context, grpcRes any) (any, error) {
 }
 
 func decodeAuthorizeRequest(_ context.Context, grpcReq any) (any, error) {
-	req := grpcReq.(*grpcAuthV1.PolicyReq)
+	req := grpcReq.(*grpcAuthV1.AuthZReq)
 	if req == nil {
 		return authReq{}, nil
 	}
 
-	return authReq{
-		Domain:      req.GetDomain(),
-		SubjectType: req.GetSubjectType(),
-		SubjectKind: req.GetSubjectKind(),
-		Subject:     req.GetSubject(),
-		Relation:    req.GetRelation(),
-		Permission:  req.GetPermission(),
-		ObjectType:  req.GetObjectType(),
-		Object:      req.GetObject(),
-		UserID:      req.GetUserId(),
-		PatID:       req.GetPatId(),
-		EntityType:  req.GetEntityType(),
-		Operation:   req.GetOperation(),
-		EntityID:    req.GetEntityId(),
-	}, nil
+	policyReq := req.GetPolicyReq()
+	patReq := req.GetPatReq()
+
+	if policyReq == nil {
+		return authReq{}, nil
+	}
+
+	authRequest := authReq{
+		Domain:      policyReq.GetDomain(),
+		SubjectType: policyReq.GetSubjectType(),
+		SubjectKind: policyReq.GetSubjectKind(),
+		Subject:     policyReq.GetSubject(),
+		Relation:    policyReq.GetRelation(),
+		Permission:  policyReq.GetPermission(),
+		ObjectType:  policyReq.GetObjectType(),
+		Object:      policyReq.GetObject(),
+	}
+
+	if patReq != nil {
+		authRequest.UserID = patReq.GetUserId()
+		authRequest.PatID = patReq.GetPatId()
+		authRequest.EntityType = patReq.GetEntityType()
+		authRequest.Operation = patReq.GetOperation()
+		authRequest.EntityID = patReq.GetEntityId()
+	}
+
+	return authRequest, nil
 }
 
 func encodeAuthorizeResponse(_ context.Context, grpcRes any) (any, error) {

auth/middleware/logging.go

@@ -110,7 +110,7 @@ func (lm *loggingMiddleware) RetrieveJWKS() (jwks []auth.PublicKeyInfo) {
 	return lm.svc.RetrieveJWKS()
 }
 
-func (lm *loggingMiddleware) Authorize(ctx context.Context, pr policies.Policy) (err error) {
+func (lm *loggingMiddleware) Authorize(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz) (err error) {
 	defer func(begin time.Time) {
 		args := []any{
 			slog.String("duration", time.Since(begin).String()),
@@ -125,6 +125,18 @@ func (lm *loggingMiddleware) Authorize(ctx context.Context, pr policies.Policy)
 			),
 			slog.String("permission", pr.Permission),
 		}
+		if patAuthz != nil {
+			args = append(args,
+				slog.Group("pat",
+					slog.String("pat_id", patAuthz.PatID),
+					slog.String("user_id", patAuthz.UserID),
+					slog.String("entity_type", patAuthz.EntityType.String()),
+					slog.String("entity_id", patAuthz.EntityID),
+					slog.String("operation", patAuthz.Operation),
+					slog.String("domain", patAuthz.Domain),
+				),
+			)
+		}
 		if err != nil {
 			args = append(args, slog.String("error", err.Error()))
 			lm.logger.Warn("Authorize failed", args...)
@@ -132,7 +144,7 @@ func (lm *loggingMiddleware) Authorize(ctx context.Context, pr policies.Policy)
 		}
 		lm.logger.Info("Authorize completed successfully", args...)
 	}(time.Now())
-	return lm.svc.Authorize(ctx, pr)
+	return lm.svc.Authorize(ctx, pr, patAuthz)
 }
 
 func (lm *loggingMiddleware) CreatePAT(ctx context.Context, token, name, description string, duration time.Duration) (pa auth.PAT, err error) {

auth/middleware/metrics.go

@@ -75,12 +75,12 @@ func (ms *metricsMiddleware) RetrieveJWKS() []auth.PublicKeyInfo {
 	return ms.svc.RetrieveJWKS()
 }
 
-func (ms *metricsMiddleware) Authorize(ctx context.Context, pr policies.Policy) error {
+func (ms *metricsMiddleware) Authorize(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz) error {
 	defer func(begin time.Time) {
 		ms.counter.With("method", "authorize").Add(1)
 		ms.latency.With("method", "authorize").Observe(time.Since(begin).Seconds())
 	}(time.Now())
-	return ms.svc.Authorize(ctx, pr)
+	return ms.svc.Authorize(ctx, pr, patAuthz)
 }
 
 func (ms *metricsMiddleware) CreatePAT(ctx context.Context, token, name, description string, duration time.Duration) (auth.PAT, error) {

auth/middleware/tracing.go

@@ -65,8 +65,8 @@ func (tm *tracingMiddleware) RetrieveJWKS() []auth.PublicKeyInfo {
 	return tm.svc.RetrieveJWKS()
 }
 
-func (tm *tracingMiddleware) Authorize(ctx context.Context, pr policies.Policy) error {
-	ctx, span := tm.tracer.Start(ctx, "authorize", trace.WithAttributes(
+func (tm *tracingMiddleware) Authorize(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz) error {
+	attributes := []attribute.KeyValue{
 		attribute.String("subject", pr.Subject),
 		attribute.String("subject_type", pr.SubjectType),
 		attribute.String("subject_relation", pr.SubjectRelation),
@@ -74,10 +74,23 @@ func (tm *tracingMiddleware) Authorize(ctx context.Context, pr policies.Policy)
 		attribute.String("object_type", pr.ObjectType),
 		attribute.String("relation", pr.Relation),
 		attribute.String("permission", pr.Permission),
-	))
+	}
+
+	if patAuthz != nil {
+		attributes = append(attributes,
+			attribute.String("pat_id", patAuthz.PatID),
+			attribute.String("pat_user_id", patAuthz.UserID),
+			attribute.String("pat_entity_type", patAuthz.EntityType.String()),
+			attribute.String("pat_entity_id", patAuthz.EntityID),
+			attribute.String("pat_operation", patAuthz.Operation),
+			attribute.String("pat_domain", patAuthz.Domain),
+		)
+	}
+
+	ctx, span := tm.tracer.Start(ctx, "authorize", trace.WithAttributes(attributes...))
 	defer span.End()
 
-	return tm.svc.Authorize(ctx, pr)
+	return tm.svc.Authorize(ctx, pr, patAuthz)
 }
 
 func (tm *tracingMiddleware) CreatePAT(ctx context.Context, token, name, description string, duration time.Duration) (auth.PAT, error) {

auth/mocks/authz.go

@@ -11,6 +11,7 @@ package mocks
 import (
 	"context"
 
+	"github.com/absmach/supermq/auth"
 	"github.com/absmach/supermq/pkg/policies"
 	mock "github.com/stretchr/testify/mock"
 )
@@ -43,16 +44,16 @@ func (_m *Authz) EXPECT() *Authz_Expecter {
 }
 
 // Authorize provides a mock function for the type Authz
-func (_mock *Authz) Authorize(ctx context.Context, pr policies.Policy) error {
-	ret := _mock.Called(ctx, pr)
+func (_mock *Authz) Authorize(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz) error {
+	ret := _mock.Called(ctx, pr, patAuthz)
 
 	if len(ret) == 0 {
 		panic("no return value specified for Authorize")
 	}
 
 	var r0 error
-	if returnFunc, ok := ret.Get(0).(func(context.Context, policies.Policy) error); ok {
-		r0 = returnFunc(ctx, pr)
+	if returnFunc, ok := ret.Get(0).(func(context.Context, policies.Policy, *auth.PATAuthz) error); ok {
+		r0 = returnFunc(ctx, pr, patAuthz)
 	} else {
 		r0 = ret.Error(0)
 	}
@@ -67,11 +68,12 @@ type Authz_Authorize_Call struct {
 // Authorize is a helper method to define mock.On call
 //   - ctx context.Context
 //   - pr policies.Policy
-func (_e *Authz_Expecter) Authorize(ctx interface{}, pr interface{}) *Authz_Authorize_Call {
-	return &Authz_Authorize_Call{Call: _e.mock.On("Authorize", ctx, pr)}
+//   - patAuthz *auth.PATAuthz
+func (_e *Authz_Expecter) Authorize(ctx interface{}, pr interface{}, patAuthz interface{}) *Authz_Authorize_Call {
+	return &Authz_Authorize_Call{Call: _e.mock.On("Authorize", ctx, pr, patAuthz)}
 }
 
-func (_c *Authz_Authorize_Call) Run(run func(ctx context.Context, pr policies.Policy)) *Authz_Authorize_Call {
+func (_c *Authz_Authorize_Call) Run(run func(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz)) *Authz_Authorize_Call {
 	_c.Call.Run(func(args mock.Arguments) {
 		var arg0 context.Context
 		if args[0] != nil {
@@ -81,9 +83,14 @@ func (_c *Authz_Authorize_Call) Run(run func(ctx context.Context, pr policies.Po
 		if args[1] != nil {
 			arg1 = args[1].(policies.Policy)
 		}
+		var arg2 *auth.PATAuthz
+		if args[2] != nil {
+			arg2 = args[2].(*auth.PATAuthz)
+		}
 		run(
 			arg0,
 			arg1,
+			arg2,
 		)
 	})
 	return _c
@@ -94,7 +101,7 @@ func (_c *Authz_Authorize_Call) Return(err error) *Authz_Authorize_Call {
 	return _c
 }
 
-func (_c *Authz_Authorize_Call) RunAndReturn(run func(ctx context.Context, pr policies.Policy) error) *Authz_Authorize_Call {
+func (_c *Authz_Authorize_Call) RunAndReturn(run func(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz) error) *Authz_Authorize_Call {
 	_c.Call.Return(run)
 	return _c
 }

auth/mocks/service.go

@@ -114,16 +114,16 @@ func (_c *Service_AddScope_Call) RunAndReturn(run func(ctx context.Context, toke
 }
 
 // Authorize provides a mock function for the type Service
-func (_mock *Service) Authorize(ctx context.Context, pr policies.Policy) error {
-	ret := _mock.Called(ctx, pr)
+func (_mock *Service) Authorize(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz) error {
+	ret := _mock.Called(ctx, pr, patAuthz)
 
 	if len(ret) == 0 {
 		panic("no return value specified for Authorize")
 	}
 
 	var r0 error
-	if returnFunc, ok := ret.Get(0).(func(context.Context, policies.Policy) error); ok {
-		r0 = returnFunc(ctx, pr)
+	if returnFunc, ok := ret.Get(0).(func(context.Context, policies.Policy, *auth.PATAuthz) error); ok {
+		r0 = returnFunc(ctx, pr, patAuthz)
 	} else {
 		r0 = ret.Error(0)
 	}
@@ -138,11 +138,12 @@ type Service_Authorize_Call struct {
 // Authorize is a helper method to define mock.On call
 //   - ctx context.Context
 //   - pr policies.Policy
-func (_e *Service_Expecter) Authorize(ctx interface{}, pr interface{}) *Service_Authorize_Call {
-	return &Service_Authorize_Call{Call: _e.mock.On("Authorize", ctx, pr)}
+//   - patAuthz *auth.PATAuthz
+func (_e *Service_Expecter) Authorize(ctx interface{}, pr interface{}, patAuthz interface{}) *Service_Authorize_Call {
+	return &Service_Authorize_Call{Call: _e.mock.On("Authorize", ctx, pr, patAuthz)}
 }
 
-func (_c *Service_Authorize_Call) Run(run func(ctx context.Context, pr policies.Policy)) *Service_Authorize_Call {
+func (_c *Service_Authorize_Call) Run(run func(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz)) *Service_Authorize_Call {
 	_c.Call.Run(func(args mock.Arguments) {
 		var arg0 context.Context
 		if args[0] != nil {
@@ -152,9 +153,14 @@ func (_c *Service_Authorize_Call) Run(run func(ctx context.Context, pr policies.
 		if args[1] != nil {
 			arg1 = args[1].(policies.Policy)
 		}
+		var arg2 *auth.PATAuthz
+		if args[2] != nil {
+			arg2 = args[2].(*auth.PATAuthz)
+		}
 		run(
 			arg0,
 			arg1,
+			arg2,
 		)
 	})
 	return _c
@@ -165,7 +171,7 @@ func (_c *Service_Authorize_Call) Return(err error) *Service_Authorize_Call {
 	return _c
 }
 
-func (_c *Service_Authorize_Call) RunAndReturn(run func(ctx context.Context, pr policies.Policy) error) *Service_Authorize_Call {
+func (_c *Service_Authorize_Call) RunAndReturn(run func(ctx context.Context, pr policies.Policy, patAuthz *auth.PATAuthz) error) *Service_Authorize_Call {
 	_c.Call.Return(run)
 	return _c
 }

auth/pat.go

@@ -69,6 +69,7 @@ const (
 	DashboardType
 	MessagesType
 	DomainsType
+	UsersType
 )
 
 const (
@@ -78,6 +79,7 @@ const (
 	DashboardsStr    = "dashboards"
 	MessagesStr      = "messages"
 	DomainsStr       = "domains"
+	UsersStr         = "users"
 )
 
 func (et EntityType) String() string {
@@ -94,6 +96,8 @@ func (et EntityType) String() string {
 		return MessagesStr
 	case DomainsType:
 		return DomainsStr
+	case UsersType:
+		return UsersStr
 	default:
 		return fmt.Sprintf("unknown domain entity type %d", et)
 	}
@@ -113,6 +117,8 @@ func ParseEntityType(et string) (EntityType, error) {
 		return MessagesType, nil
 	case DomainsStr:
 		return DomainsType, nil
+	case UsersStr:
+		return UsersType, nil
 	default:
 		return 0, fmt.Errorf("unknown domain entity type %s", et)
 	}
@@ -280,6 +286,16 @@ func (s *Scope) Validate() error {
 	return nil
 }
 
+// PATAuthz represents the PAT authorization request fields.
+type PATAuthz struct {
+	PatID      string
+	UserID     string
+	EntityType EntityType
+	EntityID   string
+	Operation  string
+	Domain     string
+}
+
 // PAT represents Personal Access Token.
 type PAT struct {
 	ID          string    `json:"id,omitempty"`

auth/service.go

@@ -56,7 +56,7 @@ type Authz interface {
 	// `object`. Authorize returns a non-nil error if the subject has
 	// no relation on the object (which simply means the operation is
 	// denied).
-	Authorize(ctx context.Context, pr policies.Policy) error
+	Authorize(ctx context.Context, pr policies.Policy, patAuthz *PATAuthz) error
 }
 
 // Authn specifies an API that must be fulfilled by the domain service
@@ -205,13 +205,9 @@ func (svc service) RetrieveJWKS() []PublicKeyInfo {
 	return keys
 }
 
-func (svc service) Authorize(ctx context.Context, pr policies.Policy) error {
-	if pr.PatID != "" {
-		entityType, err := ParseEntityType(pr.EntityType)
-		if err != nil {
-			return err
-		}
-		if err := svc.AuthorizePAT(ctx, pr.UserID, pr.PatID, entityType, pr.Domain, pr.Operation, pr.EntityID); err != nil {
+func (svc service) Authorize(ctx context.Context, pr policies.Policy, patAuthz *PATAuthz) error {
+	if patAuthz != nil {
+		if err := svc.AuthorizePAT(ctx, patAuthz.UserID, patAuthz.PatID, patAuthz.EntityType, patAuthz.Domain, patAuthz.Operation, patAuthz.EntityID); err != nil {
 			return err
 		}
 	}
@@ -336,7 +332,7 @@ func (svc service) checkUserRole(ctx context.Context, key Key) (err error) {
 			Permission:  policies.AdminPermission,
 			Object:      policies.SuperMQObject,
 			ObjectType:  policies.PlatformType,
-		}); err != nil {
+		}, nil); err != nil {
 			return errRoleAuth
 		}
 		return nil
@@ -347,7 +343,7 @@ func (svc service) checkUserRole(ctx context.Context, key Key) (err error) {
 			Permission:  policies.MembershipPermission,
 			Object:      policies.SuperMQObject,
 			ObjectType:  policies.PlatformType,
-		}); err != nil {
+		}, nil); err != nil {
 			return errRoleAuth
 		}
 		return nil
@@ -364,7 +360,7 @@ func (svc service) getUserRole(ctx context.Context, userID string) (role Role) {
 		Permission:  policies.AdminPermission,
 		Object:      policies.SuperMQObject,
 		ObjectType:  policies.PlatformType,
-	}); err == nil {
+	}, nil); err == nil {
 		rl = AdminRole
 	}
 

auth/service_test.go

@@ -648,19 +648,20 @@ func TestAuthorize(t *testing.T) {
 	cases := []struct {
 		desc                 string
 		policyReq            policies.Policy
+		patAuthz             *auth.PATAuthz
+		checkDomainPolicyReq policies.Policy
 		checkPolicyReq       policies.Policy
-		patEntityType        auth.EntityType
-		patScopeErr          error
-		expectPATCheck       bool
-		expectCheckPolicy    bool
+		patErr               error
 		parseReq             string
 		parseRes             auth.Key
 		parseErr             error
 		callBackErr          error
 		checkPolicyErr       error
 		checkDomainPolicyErr error
+		authorizePATErr      error
 		err                  error
 	}{
+
 		{
 			desc: "authorize a user key successfully",
 			policyReq: policies.Policy{
@@ -677,41 +678,51 @@ func TestAuthorize(t *testing.T) {
 				ObjectType:  policies.PlatformType,
 				Permission:  policies.AdminPermission,
 			},
-			expectCheckPolicy: true,
-			err:               nil,
+			checkDomainPolicyReq: policies.Policy{
+				Subject:     userID,
+				SubjectType: policies.UserType,
+				Object:      validID,
+				ObjectType:  policies.DomainType,
+				Permission:  policies.MembershipPermission,
+			},
+			err: nil,
 		},
 		{
-			desc: "authorize with PAT scope successfully",
+			desc: "authorize with PAT successfully",
 			policyReq: policies.Policy{
 				SubjectType: policies.UserType,
 				SubjectKind: policies.UsersKind,
-				Object:      policies.SuperMQObject,
-				ObjectType:  policies.PlatformType,
-				Permission:  policies.AdminPermission,
-				PatID:       validID,
-				UserID:      userID,
-				EntityType:  auth.ChannelsScopeStr,
+				Subject:     userID,
+				Object:      validID,
+				ObjectType:  policies.ClientType,
+				Permission:  policies.ViewPermission,
 				Domain:      domainID,
-				Operation:   auth.OpListChannels,
-				EntityID:    auth.AnyIDs,
+			},
+			patAuthz: &auth.PATAuthz{
+				PatID:      validID,
+				UserID:     userID,
+				EntityType: auth.ClientsType,
+				EntityID:   validID,
+				Operation:  "read",
+				Domain:     domainID,
+			},
+			checkDomainPolicyReq: policies.Policy{
+				Subject:     userID,
+				SubjectType: policies.UserType,
+				Object:      domainID,
+				ObjectType:  policies.DomainType,
+				Permission:  policies.MembershipPermission,
 			},
 			checkPolicyReq: policies.Policy{
 				SubjectType: policies.UserType,
 				SubjectKind: policies.UsersKind,
-				Object:      policies.SuperMQObject,
-				ObjectType:  policies.PlatformType,
-				Permission:  policies.AdminPermission,
-				PatID:       validID,
-				UserID:      userID,
-				EntityType:  auth.ChannelsScopeStr,
+				Subject:     userID,
+				Object:      validID,
+				ObjectType:  policies.ClientType,
+				Permission:  policies.ViewPermission,
 				Domain:      domainID,
-				Operation:   auth.OpListChannels,
-				EntityID:    auth.AnyIDs,
 			},
-			patEntityType:     auth.ChannelsType,
-			expectPATCheck:    true,
-			expectCheckPolicy: true,
-			err:               nil,
+			err: nil,
 		},
 		{
 			desc: "authorize with PAT scope check failure",
@@ -721,12 +732,14 @@ func TestAuthorize(t *testing.T) {
 				Object:      policies.SuperMQObject,
 				ObjectType:  policies.PlatformType,
 				Permission:  policies.AdminPermission,
-				PatID:       validID,
-				UserID:      userID,
-				EntityType:  auth.ChannelsScopeStr,
-				Domain:      domainID,
-				Operation:   auth.OpListChannels,
-				EntityID:    auth.AnyIDs,
+			},
+			patAuthz: &auth.PATAuthz{
+				PatID:      validID,
+				UserID:     userID,
+				EntityType: auth.ChannelsType,
+				Domain:     domainID,
+				Operation:  auth.OpListChannels,
+				EntityID:   auth.AnyIDs,
 			},
 			checkPolicyReq: policies.Policy{
 				SubjectType: policies.UserType,
@@ -734,17 +747,9 @@ func TestAuthorize(t *testing.T) {
 				Object:      policies.SuperMQObject,
 				ObjectType:  policies.PlatformType,
 				Permission:  policies.AdminPermission,
-				PatID:       validID,
-				UserID:      userID,
-				EntityType:  auth.ChannelsScopeStr,
-				Domain:      domainID,
-				Operation:   auth.OpListChannels,
-				EntityID:    auth.AnyIDs,
 			},
-			patEntityType:  auth.ChannelsType,
-			patScopeErr:    repoerr.ErrNotFound,
-			expectPATCheck: true,
-			err:            svcerr.ErrAuthorization,
+			patErr: svcerr.ErrAuthorization,
+			err:    svcerr.ErrAuthorization,
 		},
 		{
 			desc: "authorize with invalid PAT entity type",
@@ -754,12 +759,14 @@ func TestAuthorize(t *testing.T) {
 				Object:      policies.SuperMQObject,
 				ObjectType:  policies.PlatformType,
 				Permission:  policies.AdminPermission,
-				PatID:       validID,
-				UserID:      userID,
-				EntityType:  "invalid",
-				Domain:      domainID,
-				Operation:   auth.OpListChannels,
-				EntityID:    auth.AnyIDs,
+			},
+			patAuthz: &auth.PATAuthz{
+				PatID:      validID,
+				UserID:     userID,
+				EntityType: auth.EntityType(100),
+				Domain:     domainID,
+				Operation:  auth.OpListChannels,
+				EntityID:   auth.AnyIDs,
 			},
 			checkPolicyReq: policies.Policy{
 				SubjectType: policies.UserType,
@@ -767,32 +774,55 @@ func TestAuthorize(t *testing.T) {
 				Object:      policies.SuperMQObject,
 				ObjectType:  policies.PlatformType,
 				Permission:  policies.AdminPermission,
-				PatID:       validID,
-				UserID:      userID,
-				EntityType:  "invalid",
-				Domain:      domainID,
-				Operation:   auth.OpListChannels,
-				EntityID:    auth.AnyIDs,
 			},
-			err: errors.New("unknown domain entity type invalid"),
+			patErr: errors.New("unknown domain entity type invalid"),
+			err:    errors.New("unknown domain entity type invalid"),
 		},
+
 		{
-			desc: "authorize invalid platform object",
+			desc: "authorize with PAT but PAT authorization fails",
 			policyReq: policies.Policy{
 				SubjectType: policies.UserType,
 				SubjectKind: policies.UsersKind,
-				Object:      "invalid",
-				ObjectType:  policies.PlatformType,
-				Permission:  policies.AdminPermission,
+				Subject:     userID,
+				Object:      validID,
+				ObjectType:  policies.ClientType,
+				Permission:  policies.ViewPermission,
 			},
-			checkPolicyReq: policies.Policy{
+			patAuthz: &auth.PATAuthz{
+				PatID:      validID,
+				UserID:     userID,
+				EntityType: auth.ClientsType,
+				EntityID:   validID,
+				Operation:  "read",
+				Domain:     domainID,
+			},
+			checkPolicyReq:  policies.Policy{},
+			authorizePATErr: svcerr.ErrAuthorization,
+			err:             svcerr.ErrAuthorization,
+		},
+
+		{
+			desc: "authorize with PAT - PAT authorization fails but policy check not reached",
+			policyReq: policies.Policy{
 				SubjectType: policies.UserType,
 				SubjectKind: policies.UsersKind,
-				Object:      "invalid",
-				ObjectType:  policies.PlatformType,
-				Permission:  policies.AdminPermission,
+				Subject:     userID,
+				Object:      validID,
+				ObjectType:  policies.ClientType,
+				Permission:  policies.ViewPermission,
 			},
-			err: svcerr.ErrMalformedEntity,
+			patAuthz: &auth.PATAuthz{
+				PatID:      validID,
+				UserID:     userID,
+				EntityType: auth.ClientsType,
+				EntityID:   validID,
+				Operation:  "write",
+				Domain:     domainID,
+			},
+			checkPolicyReq:  policies.Policy{},
+			authorizePATErr: svcerr.ErrAuthorization,
+			err:             svcerr.ErrAuthorization,
 		},
 		{
 			desc: "authorize with policy check error",
@@ -810,23 +840,26 @@ func TestAuthorize(t *testing.T) {
 				ObjectType:  policies.PlatformType,
 				Permission:  policies.AdminPermission,
 			},
-			checkPolicyErr:    repoerr.ErrNotFound,
-			expectCheckPolicy: true,
-			err:               svcerr.ErrAuthorization,
+			checkPolicyErr: repoerr.ErrNotFound,
+			err:            svcerr.ErrAuthorization,
 		},
 	}
 	for _, tc := range cases {
 		t.Run(tc.desc, func(t *testing.T) {
 			var policyCall *mock.Call
-			if tc.expectCheckPolicy {
+			if tc.checkPolicyReq != (policies.Policy{}) {
 				policyCall = pEvaluator.On("CheckPolicy", mock.Anything, tc.checkPolicyReq).Return(tc.checkPolicyErr)
 			}
 			var patCall *mock.Call
-			if tc.expectPATCheck {
-				patCall = patsrepo.On("CheckScope", mock.Anything, tc.policyReq.UserID, tc.policyReq.PatID, tc.patEntityType, tc.policyReq.Domain, tc.policyReq.Operation, tc.policyReq.EntityID).Return(tc.patScopeErr)
+			if tc.patAuthz != nil {
+				patErr := tc.patErr
+				if patErr == nil {
+					patErr = tc.authorizePATErr
+				}
+				patCall = patsrepo.On("CheckScope", mock.Anything, tc.patAuthz.UserID, tc.patAuthz.PatID, tc.patAuthz.EntityType, tc.patAuthz.Domain, tc.patAuthz.Operation, tc.patAuthz.EntityID).Return(patErr)
 			}
 			repoCall := krepo.On("Remove", mock.Anything, mock.Anything, mock.Anything).Return(nil)
-			err := svc.Authorize(context.Background(), tc.policyReq)
+			err := svc.Authorize(context.Background(), tc.policyReq, tc.patAuthz)
 			assert.True(t, errors.Contains(err, tc.err), fmt.Sprintf("%s expected %s got %s\n", tc.desc, tc.err, err))
 			if policyCall != nil {
 				policyCall.Unset()

channels/middleware/authorization.go

@@ -326,9 +326,8 @@ func (am *authorizationMiddleware) RemoveParentGroup(ctx context.Context, sessio
 }
 
 func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.Session, entityType string, op permissions.Operation, req smqauthz.PolicyReq) error {
-	req.UserID = session.UserID
-	req.PatID = session.PatID
 	req.Domain = session.DomainID
+
 	perm, err := am.entitiesOps.GetPermission(entityType, op)
 	if err != nil {
 		return err
@@ -336,14 +335,24 @@ func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.
 
 	req.Permission = perm.String()
 
-	req.EntityID = req.Object
-	req.EntityType = auth.ChannelsType.String()
-	req.Operation = am.entitiesOps.OperationName(entityType, op)
-	if op == operations.OpListUserChannels || op == dOperations.OpCreateDomainChannels || op == dOperations.OpListDomainChannels {
-		req.EntityID = auth.AnyIDs
+	var pat *smqauthz.PATReq
+	if session.PatID != "" {
+		entityID := req.Object
+		opName := am.entitiesOps.OperationName(entityType, op)
+		if op == operations.OpListUserChannels || op == dOperations.OpCreateDomainChannels || op == dOperations.OpListDomainChannels {
+			entityID = auth.AnyIDs
+		}
+		pat = &smqauthz.PATReq{
+			UserID:     session.UserID,
+			PatID:      session.PatID,
+			EntityID:   entityID,
+			EntityType: auth.ChannelsType.String(),
+			Operation:  opName,
+			Domain:     session.DomainID,
+		}
 	}
 
-	if err := am.authz.Authorize(ctx, req); err != nil {
+	if err := am.authz.Authorize(ctx, req, pat); err != nil {
 		return err
 	}
 
@@ -360,7 +369,7 @@ func (am *authorizationMiddleware) checkSuperAdmin(ctx context.Context, session
 		Permission:  policies.AdminPermission,
 		ObjectType:  policies.PlatformType,
 		Object:      policies.SuperMQObject,
-	}); err != nil {
+	}, nil); err != nil {
 		return err
 	}
 	return nil

clients/middleware/authorization.go

@@ -257,8 +257,6 @@ func (am *authorizationMiddleware) RemoveParentGroup(ctx context.Context, sessio
 }
 
 func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.Session, entityType string, op permissions.Operation, req smqauthz.PolicyReq) error {
-	req.UserID = session.UserID
-	req.PatID = session.PatID
 	req.Domain = session.DomainID
 
 	perm, err := am.entitiesOps.GetPermission(entityType, op)
@@ -268,14 +266,24 @@ func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.
 
 	req.Permission = perm.String()
 
-	req.EntityID = req.Object
-	req.EntityType = auth.ClientsType.String()
-	req.Operation = am.entitiesOps.OperationName(entityType, op)
-	if op == operations.OpListUserClients || op == dOperations.OpCreateDomainClients || op == dOperations.OpListDomainClients {
-		req.EntityID = auth.AnyIDs
+	var pat *smqauthz.PATReq
+	if session.PatID != "" {
+		entityID := req.Object
+		opName := am.entitiesOps.OperationName(entityType, op)
+		if op == operations.OpListUserClients || op == dOperations.OpCreateDomainClients || op == dOperations.OpListDomainClients {
+			entityID = auth.AnyIDs
+		}
+		pat = &smqauthz.PATReq{
+			UserID:     session.UserID,
+			PatID:      session.PatID,
+			EntityID:   entityID,
+			EntityType: auth.ClientsType.String(),
+			Operation:  opName,
+			Domain:     session.DomainID,
+		}
 	}
 
-	if err := am.authz.Authorize(ctx, req); err != nil {
+	if err := am.authz.Authorize(ctx, req, pat); err != nil {
 		return err
 	}
 
@@ -292,7 +300,7 @@ func (am *authorizationMiddleware) checkSuperAdmin(ctx context.Context, session
 		Permission:  policies.AdminPermission,
 		ObjectType:  policies.PlatformType,
 		Object:      policies.SuperMQObject,
-	}); err != nil {
+	}, nil); err != nil {
 		return err
 	}
 	return nil

cmd/users/main.go

@@ -412,7 +412,7 @@ func createAdminPolicy(ctx context.Context, userID string, authz smqauthz.Author
 		Permission:  policies.AdministratorRelation,
 		Object:      policies.SuperMQObject,
 		ObjectType:  policies.PlatformType,
-	}); err != nil {
+	}, nil); err != nil {
 		err := policyService.AddPolicy(ctx, policies.Policy{
 			SubjectType: policies.UserType,
 			Subject:     userID,

domains/middleware/authorization.go

@@ -6,6 +6,7 @@ package middleware
 import (
 	"context"
 
+	"github.com/absmach/supermq/auth"
 	"github.com/absmach/supermq/domains"
 	"github.com/absmach/supermq/domains/operations"
 	"github.com/absmach/supermq/pkg/authn"
@@ -61,7 +62,7 @@ func (am *authorizationMiddleware) RetrieveDomain(ctx context.Context, session a
 		return am.svc.RetrieveDomain(ctx, session, id, withRoles)
 	}
 
-	if err := am.authorize(ctx, policies.DomainType, operations.OpRetrieveDomain, authz.PolicyReq{
+	if err := am.authorize(ctx, session, policies.DomainType, operations.OpRetrieveDomain, authz.PolicyReq{
 		Subject:     session.DomainUserID,
 		SubjectType: policies.UserType,
 		SubjectKind: policies.UsersKind,
@@ -75,7 +76,7 @@ func (am *authorizationMiddleware) RetrieveDomain(ctx context.Context, session a
 }
 
 func (am *authorizationMiddleware) UpdateDomain(ctx context.Context, session authn.Session, id string, d domains.DomainReq) (domains.Domain, error) {
-	if err := am.authorize(ctx, policies.DomainType, operations.OpUpdateDomain, authz.PolicyReq{
+	if err := am.authorize(ctx, session, policies.DomainType, operations.OpUpdateDomain, authz.PolicyReq{
 		Subject:     session.DomainUserID,
 		SubjectType: policies.UserType,
 		SubjectKind: policies.UsersKind,
@@ -89,7 +90,7 @@ func (am *authorizationMiddleware) UpdateDomain(ctx context.Context, session aut
 }
 
 func (am *authorizationMiddleware) EnableDomain(ctx context.Context, session authn.Session, id string) (domains.Domain, error) {
-	if err := am.authorize(ctx, policies.DomainType, operations.OpEnableDomain, authz.PolicyReq{
+	if err := am.authorize(ctx, session, policies.DomainType, operations.OpEnableDomain, authz.PolicyReq{
 		Subject:     session.DomainUserID,
 		SubjectType: policies.UserType,
 		SubjectKind: policies.UsersKind,
@@ -103,7 +104,7 @@ func (am *authorizationMiddleware) EnableDomain(ctx context.Context, session aut
 }
 
 func (am *authorizationMiddleware) DisableDomain(ctx context.Context, session authn.Session, id string) (domains.Domain, error) {
-	if err := am.authorize(ctx, policies.DomainType, operations.OpDisableDomain, authz.PolicyReq{
+	if err := am.authorize(ctx, session, policies.DomainType, operations.OpDisableDomain, authz.PolicyReq{
 		Subject:     session.DomainUserID,
 		SubjectType: policies.UserType,
 		SubjectKind: policies.UsersKind,
@@ -125,7 +126,7 @@ func (am *authorizationMiddleware) FreezeDomain(ctx context.Context, session aut
 		Permission:  policies.AdminPermission,
 		Object:      policies.SuperMQObject,
 		ObjectType:  policies.PlatformType,
-	}); err != nil {
+	}, nil); err != nil {
 		return domains.Domain{}, err
 	}
 
@@ -141,7 +142,7 @@ func (am *authorizationMiddleware) ListDomains(ctx context.Context, session auth
 }
 
 func (am *authorizationMiddleware) SendInvitation(ctx context.Context, session authn.Session, invitation domains.Invitation) (domains.Invitation, error) {
-	if err := am.authorize(ctx, policies.DomainType, operations.OpSendDomainInvitation, authz.PolicyReq{
+	if err := am.authorize(ctx, session, policies.DomainType, operations.OpSendDomainInvitation, authz.PolicyReq{
 		Subject:     session.DomainUserID,
 		SubjectType: policies.UserType,
 		SubjectKind: policies.UsersKind,
@@ -151,6 +152,10 @@ func (am *authorizationMiddleware) SendInvitation(ctx context.Context, session a
 		return domains.Invitation{}, err
 	}
 
+	if err := am.checkAdmin(ctx, session); err != nil {
+		return domains.Invitation{}, err
+	}
+
 	return am.svc.SendInvitation(ctx, session, invitation)
 }
 
@@ -159,7 +164,7 @@ func (am *authorizationMiddleware) ListInvitations(ctx context.Context, session
 }
 
 func (am *authorizationMiddleware) ListDomainInvitations(ctx context.Context, session authn.Session, page domains.InvitationPageMeta) (invs domains.InvitationPage, err error) {
-	if err := am.authorize(ctx, policies.DomainType, operations.OpListDomainInvitations, authz.PolicyReq{
+	if err := am.authorize(ctx, session, policies.DomainType, operations.OpListDomainInvitations, authz.PolicyReq{
 		Subject:     session.DomainUserID,
 		SubjectType: policies.UserType,
 		SubjectKind: policies.UsersKind,
@@ -181,7 +186,7 @@ func (am *authorizationMiddleware) RejectInvitation(ctx context.Context, session
 }
 
 func (am *authorizationMiddleware) DeleteInvitation(ctx context.Context, session authn.Session, inviteeUserID, domainID string) (err error) {
-	if err := am.authorize(ctx, policies.DomainType, operations.OpDeleteDomainInvitation, authz.PolicyReq{
+	if err := am.authorize(ctx, session, policies.DomainType, operations.OpDeleteDomainInvitation, authz.PolicyReq{
 		Subject:     session.DomainUserID,
 		SubjectType: policies.UserType,
 		SubjectKind: policies.UsersKind,
@@ -194,7 +199,9 @@ func (am *authorizationMiddleware) DeleteInvitation(ctx context.Context, session
 	return am.svc.DeleteInvitation(ctx, session, inviteeUserID, domainID)
 }
 
-func (am *authorizationMiddleware) authorize(ctx context.Context, entityType string, op permissions.Operation, authReq authz.PolicyReq) error {
+func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.Session, entityType string, op permissions.Operation, authReq authz.PolicyReq) error {
+	authReq.Domain = session.DomainID
+
 	perm, err := am.entitiesOps.GetPermission(entityType, op)
 	if err != nil {
 		return err
@@ -202,13 +209,57 @@ func (am *authorizationMiddleware) authorize(ctx context.Context, entityType str
 
 	authReq.Permission = perm.String()
 
-	if err := am.authz.Authorize(ctx, authReq); err != nil {
+	var pat *smqauthz.PATReq
+	if session.PatID != "" {
+		entityID := authReq.Object
+		opName := am.entitiesOps.OperationName(entityType, op)
+		pat = &smqauthz.PATReq{
+			UserID:     session.UserID,
+			PatID:      session.PatID,
+			EntityID:   entityID,
+			EntityType: auth.DomainsType.String(),
+			Operation:  opName,
+			Domain:     session.DomainID,
+		}
+	}
+
+	if err := am.authz.Authorize(ctx, authReq, pat); err != nil {
 		return err
 	}
 
 	return nil
 }
 
+// checkAdmin checks if the given user is a domain or platform administrator.
+func (am *authorizationMiddleware) checkAdmin(ctx context.Context, session authn.Session) error {
+	req := smqauthz.PolicyReq{
+		SubjectType: policies.UserType,
+		SubjectKind: policies.UsersKind,
+		Subject:     session.DomainUserID,
+		Permission:  policies.AdminPermission,
+		ObjectType:  policies.DomainType,
+		Object:      session.DomainID,
+	}
+	if err := am.authz.Authorize(ctx, req, nil); err == nil {
+		return nil
+	}
+
+	req = smqauthz.PolicyReq{
+		SubjectType: policies.UserType,
+		SubjectKind: policies.UsersKind,
+		Subject:     session.UserID,
+		Permission:  policies.AdminPermission,
+		ObjectType:  policies.PlatformType,
+		Object:      policies.SuperMQObject,
+	}
+
+	if err := am.authz.Authorize(ctx, req, nil); err == nil {
+		return nil
+	}
+
+	return svcerr.ErrAuthorization
+}
+
 func (am *authorizationMiddleware) checkSuperAdmin(ctx context.Context, session authn.Session) error {
 	if session.Role != authn.AdminRole {
 		return svcerr.ErrSuperAdminAction
@@ -219,7 +270,7 @@ func (am *authorizationMiddleware) checkSuperAdmin(ctx context.Context, session
 		Permission:  policies.AdminPermission,
 		ObjectType:  policies.PlatformType,
 		Object:      policies.SuperMQObject,
-	}); err != nil {
+	}, nil); err != nil {
 		return err
 	}
 	return nil

groups/middleware/authorization.go

@@ -376,15 +376,13 @@ func (am *authorizationMiddleware) checkSuperAdmin(ctx context.Context, session
 		Permission:  policies.AdminPermission,
 		ObjectType:  policies.PlatformType,
 		Object:      policies.SuperMQObject,
-	}); err != nil {
+	}, nil); err != nil {
 		return err
 	}
 	return nil
 }
 
 func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.Session, entityType string, op permissions.Operation, pr smqauthz.PolicyReq) error {
-	pr.UserID = session.UserID
-	pr.PatID = session.PatID
 	pr.Domain = session.DomainID
 
 	perm, err := am.entitiesOps.GetPermission(entityType, op)
@@ -393,14 +391,24 @@ func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.
 	}
 	pr.Permission = perm.String()
 
-	pr.EntityID = pr.Object
-	pr.EntityType = auth.GroupsType.String()
-	pr.Operation = am.entitiesOps.OperationName(entityType, op)
-	if op == dOperations.OpListDomainGroups || op == dOperations.OpCreateDomainGroups {
-		pr.EntityID = auth.AnyIDs
+	var pat *smqauthz.PATReq
+	if session.PatID != "" {
+		entityID := pr.Object
+		opName := am.entitiesOps.OperationName(entityType, op)
+		if op == dOperations.OpListDomainGroups || op == dOperations.OpCreateDomainGroups {
+			entityID = auth.AnyIDs
+		}
+		pat = &smqauthz.PATReq{
+			UserID:     session.UserID,
+			PatID:      session.PatID,
+			EntityID:   entityID,
+			EntityType: auth.GroupsType.String(),
+			Operation:  opName,
+			Domain:     session.DomainID,
+		}
 	}
 
-	if err := am.authz.Authorize(ctx, pr); err != nil {
+	if err := am.authz.Authorize(ctx, pr, pat); err != nil {
 		return err
 	}
 	return nil

internal/proto/auth/v1/auth.proto

@@ -9,7 +9,7 @@ option go_package = "github.com/absmach/supermq/api/grpc/auth/v1";
 // AuthService is a service that provides authentication
 // and authorization functionalities for SuperMQ services.
 service AuthService {
-  rpc Authorize(PolicyReq) returns (AuthZRes) {}
+  rpc Authorize(AuthZReq) returns (AuthZRes) {}
   rpc Authenticate(AuthNReq) returns (AuthNRes) {}
 }
 
@@ -35,11 +35,20 @@ message PolicyReq {
   string permission = 7;
   string object = 8;
   string object_type = 9;
-  string pat_id = 10;
-  string operation = 11;
-  string user_id = 12;
-  string entity_id = 13;
-  string entity_type = 14;
+}
+
+message PATReq {
+  string pat_id = 1;
+  string domain = 2;
+  string operation = 3;
+  string user_id = 4;
+  string entity_id = 5;
+  string entity_type = 6;
+}
+
+message AuthZReq {
+  PolicyReq policy_req = 1;
+  optional PATReq pat_req = 2;
 }
 
 message AuthZRes {

journal/middleware/authorization.go

@@ -58,7 +58,7 @@ func (am *authorizationMiddleware) RetrieveAll(ctx context.Context, session smqa
 		ObjectType:  objectType,
 		Object:      object,
 	}
-	if err := am.authz.Authorize(ctx, req); err != nil {
+	if err := am.authz.Authorize(ctx, req, nil); err != nil {
 		return journal.JournalsPage{}, err
 	}
 
@@ -76,7 +76,7 @@ func (am *authorizationMiddleware) RetrieveClientTelemetry(ctx context.Context,
 		Object:      clientID,
 	}
 
-	if err := am.authz.Authorize(ctx, req); err != nil {
+	if err := am.authz.Authorize(ctx, req, nil); err != nil {
 		return journal.ClientTelemetry{}, err
 	}
 

pkg/authz/authsvc/authz.go

@@ -46,7 +46,7 @@ func NewAuthorization(ctx context.Context, cfg grpcclient.Config, domainsAuthz p
 	}, client, nil
 }
 
-func (a authorization) Authorize(ctx context.Context, pr authz.PolicyReq) error {
+func (a authorization) Authorize(ctx context.Context, pr authz.PolicyReq, pat *authz.PATReq) error {
 	if pr.SubjectType == policies.UserType && (pr.ObjectType == policies.GroupType || pr.ObjectType == policies.ClientType || pr.ObjectType == policies.DomainType) {
 		domainID := pr.Domain
 		if domainID == "" {
@@ -60,21 +60,29 @@ func (a authorization) Authorize(ctx context.Context, pr authz.PolicyReq) error
 		}
 	}
 
-	req := grpcAuthV1.PolicyReq{
-		Domain:          pr.Domain,
-		SubjectType:     pr.SubjectType,
-		SubjectKind:     pr.SubjectKind,
-		SubjectRelation: pr.SubjectRelation,
-		Subject:         pr.Subject,
-		Relation:        pr.Relation,
-		Permission:      pr.Permission,
-		Object:          pr.Object,
-		ObjectType:      pr.ObjectType,
-		PatId:           pr.PatID,
-		Operation:       pr.Operation,
-		UserId:          pr.UserID,
-		EntityId:        pr.EntityID,
-		EntityType:      pr.EntityType,
+	req := grpcAuthV1.AuthZReq{
+		PolicyReq: &grpcAuthV1.PolicyReq{
+			Domain:          pr.Domain,
+			SubjectType:     pr.SubjectType,
+			SubjectKind:     pr.SubjectKind,
+			SubjectRelation: pr.SubjectRelation,
+			Subject:         pr.Subject,
+			Relation:        pr.Relation,
+			Permission:      pr.Permission,
+			Object:          pr.Object,
+			ObjectType:      pr.ObjectType,
+		},
+	}
+
+	if pat != nil {
+		req.PatReq = &grpcAuthV1.PATReq{
+			PatId:      pat.PatID,
+			Domain:     pat.Domain,
+			Operation:  pat.Operation,
+			UserId:     pat.UserID,
+			EntityId:   pat.EntityID,
+			EntityType: pat.EntityType,
+		}
 	}
 
 	res, err := a.authSvcClient.Authorize(ctx, &req)
@@ -95,32 +103,38 @@ func (a authorization) checkDomain(ctx context.Context, subjectType, subject, do
 
 	switch status {
 	case domains.FreezeStatus:
-		_, err := a.authSvcClient.Authorize(ctx, &grpcAuthV1.PolicyReq{
-			Subject:     subject,
-			SubjectType: subjectType,
-			Permission:  policies.AdminPermission,
-			Object:      policies.SuperMQObject,
-			ObjectType:  policies.PlatformType,
+		_, err := a.authSvcClient.Authorize(ctx, &grpcAuthV1.AuthZReq{
+			PolicyReq: &grpcAuthV1.PolicyReq{
+				Subject:     subject,
+				SubjectType: subjectType,
+				Permission:  policies.AdminPermission,
+				Object:      policies.SuperMQObject,
+				ObjectType:  policies.PlatformType,
+			},
 		})
 
 		return err
 	case domains.DisabledStatus:
-		_, err := a.authSvcClient.Authorize(ctx, &grpcAuthV1.PolicyReq{
-			Subject:     subject,
-			SubjectType: subjectType,
-			Permission:  policies.AdminPermission,
-			Object:      domainID,
-			ObjectType:  policies.DomainType,
+		_, err := a.authSvcClient.Authorize(ctx, &grpcAuthV1.AuthZReq{
+			PolicyReq: &grpcAuthV1.PolicyReq{
+				Subject:     subject,
+				SubjectType: subjectType,
+				Permission:  policies.AdminPermission,
+				Object:      domainID,
+				ObjectType:  policies.DomainType,
+			},
 		})
 
 		return err
 	case domains.EnabledStatus:
-		_, err := a.authSvcClient.Authorize(ctx, &grpcAuthV1.PolicyReq{
-			Subject:     subject,
-			SubjectType: subjectType,
-			Permission:  policies.MembershipPermission,
-			Object:      domainID,
-			ObjectType:  policies.DomainType,
+		_, err := a.authSvcClient.Authorize(ctx, &grpcAuthV1.AuthZReq{
+			PolicyReq: &grpcAuthV1.PolicyReq{
+				Subject:     subject,
+				SubjectType: subjectType,
+				Permission:  policies.MembershipPermission,
+				Object:      domainID,
+				ObjectType:  policies.DomainType,
+			},
 		})
 
 		return err

pkg/authz/authz.go

@@ -42,17 +42,30 @@ type PolicyReq struct {
 	// Permission contains the permission. Supported permissions are admin, delete, edit, share, view,
 	// membership, create, admin_only, edit_only, view_only, membership_only, ext_admin, ext_edit, ext_view.
 	Permission string `json:"permission,omitempty"`
+}
 
-	// PAT authorization fields
-	UserID     string `json:"user_id,omitempty"`
-	PatID      string `json:"pat_id,omitempty"`
-	EntityType string `json:"entity_type,omitempty"`
-	DomainID   string `json:"domain_id,omitempty"`
-	Operation  string `json:"operation,omitempty"`
-	EntityID   string `json:"entity_id,omitempty"`
+// PATReq represents a Personal Access Token authorization request.
+type PATReq struct {
+	// PatID contains the personal access token ID.
+	PatID string `json:"pat_id"`
+
+	// Domain contains the domain ID.
+	Domain string `json:"domain"`
+
+	// Operation contains the operation type for PAT authorization.
+	Operation string `json:"operation"`
+
+	// UserID contains the user ID for PAT authorization.
+	UserID string `json:"user_id"`
+
+	// EntityID contains the entity ID for PAT authorization.
+	EntityID string `json:"entity_id"`
+
+	// EntityType contains the entity type for PAT authorization.
+	EntityType string `json:"entity_type"`
 }
 
 // Authz is supermq authorization library.
 type Authorization interface {
-	Authorize(ctx context.Context, pr PolicyReq) error
+	Authorize(ctx context.Context, pr PolicyReq, pat *PATReq) error
 }

pkg/authz/mocks/authorization.go

@@ -43,16 +43,16 @@ func (_m *Authorization) EXPECT() *Authorization_Expecter {
 }
 
 // Authorize provides a mock function for the type Authorization
-func (_mock *Authorization) Authorize(ctx context.Context, pr authz.PolicyReq) error {
-	ret := _mock.Called(ctx, pr)
+func (_mock *Authorization) Authorize(ctx context.Context, pr authz.PolicyReq, pat *authz.PATReq) error {
+	ret := _mock.Called(ctx, pr, pat)
 
 	if len(ret) == 0 {
 		panic("no return value specified for Authorize")
 	}
 
 	var r0 error
-	if returnFunc, ok := ret.Get(0).(func(context.Context, authz.PolicyReq) error); ok {
-		r0 = returnFunc(ctx, pr)
+	if returnFunc, ok := ret.Get(0).(func(context.Context, authz.PolicyReq, *authz.PATReq) error); ok {
+		r0 = returnFunc(ctx, pr, pat)
 	} else {
 		r0 = ret.Error(0)
 	}
@@ -67,11 +67,12 @@ type Authorization_Authorize_Call struct {
 // Authorize is a helper method to define mock.On call
 //   - ctx context.Context
 //   - pr authz.PolicyReq
-func (_e *Authorization_Expecter) Authorize(ctx interface{}, pr interface{}) *Authorization_Authorize_Call {
-	return &Authorization_Authorize_Call{Call: _e.mock.On("Authorize", ctx, pr)}
+//   - pat *authz.PATReq
+func (_e *Authorization_Expecter) Authorize(ctx interface{}, pr interface{}, pat interface{}) *Authorization_Authorize_Call {
+	return &Authorization_Authorize_Call{Call: _e.mock.On("Authorize", ctx, pr, pat)}
 }
 
-func (_c *Authorization_Authorize_Call) Run(run func(ctx context.Context, pr authz.PolicyReq)) *Authorization_Authorize_Call {
+func (_c *Authorization_Authorize_Call) Run(run func(ctx context.Context, pr authz.PolicyReq, pat *authz.PATReq)) *Authorization_Authorize_Call {
 	_c.Call.Run(func(args mock.Arguments) {
 		var arg0 context.Context
 		if args[0] != nil {
@@ -81,9 +82,14 @@ func (_c *Authorization_Authorize_Call) Run(run func(ctx context.Context, pr aut
 		if args[1] != nil {
 			arg1 = args[1].(authz.PolicyReq)
 		}
+		var arg2 *authz.PATReq
+		if args[2] != nil {
+			arg2 = args[2].(*authz.PATReq)
+		}
 		run(
 			arg0,
 			arg1,
+			arg2,
 		)
 	})
 	return _c
@@ -94,7 +100,7 @@ func (_c *Authorization_Authorize_Call) Return(err error) *Authorization_Authori
 	return _c
 }
 
-func (_c *Authorization_Authorize_Call) RunAndReturn(run func(ctx context.Context, pr authz.PolicyReq) error) *Authorization_Authorize_Call {
+func (_c *Authorization_Authorize_Call) RunAndReturn(run func(ctx context.Context, pr authz.PolicyReq, pat *authz.PATReq) error) *Authorization_Authorize_Call {
 	_c.Call.Return(run)
 	return _c
 }

pkg/policies/service.go

@@ -49,19 +49,6 @@ type Policy struct {
 	// Permission contains the permission. Supported permissions are admin, delete, edit, share, view,
 	// membership, create, admin_only, edit_only, view_only, membership_only, ext_admin, ext_edit, ext_view.
 	Permission string `json:"permission,omitempty"`
-
-	// PAT authorization fields
-
-	// PatID contains the personal access token ID.
-	PatID string `json:"pat_id,omitempty"`
-	// Operation contains the operation type for PAT authorization.
-	Operation string `json:"operation,omitempty"`
-	// UserID contains the user ID for PAT authorization.
-	UserID string `json:"user_id,omitempty"`
-	// EntityType contains the entity type for PAT authorization.
-	EntityType string `json:"entity_type,omitempty"`
-	// EntityID contains the entity ID for PAT authorization.
-	EntityID string `json:"entity_id,omitempty"`
 }
 
 func (pr Policy) String() string {

pkg/roles/rolemanager/middleware/authorization.go

@@ -5,6 +5,7 @@ package middleware
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/absmach/supermq/auth"
 	"github.com/absmach/supermq/pkg/authn"
@@ -293,8 +294,6 @@ func (ram RoleManagerAuthorizationMiddleware) RoleRemoveMembers(ctx context.Cont
 }
 
 func (ram RoleManagerAuthorizationMiddleware) authorize(ctx context.Context, session authn.Session, op permissions.RoleOperation, pr smqauthz.PolicyReq) error {
-	pr.UserID = session.UserID
-	pr.PatID = session.PatID
 	pr.Domain = session.DomainID
 
 	perm, err := ram.ops.GetPermission(op)
@@ -304,19 +303,31 @@ func (ram RoleManagerAuthorizationMiddleware) authorize(ctx context.Context, ses
 
 	pr.Permission = perm.String()
 
-	pr.EntityID = pr.Object
-	opName := ram.ops.OperationName(op)
-	switch pr.ObjectType {
-	case policies.GroupType:
-		pr.EntityType = auth.GroupsType.String()
-	case policies.ClientType:
-		pr.EntityType = auth.ClientsType.String()
-	case policies.ChannelType:
-		pr.EntityType = auth.ChannelsType.String()
+	var pat *smqauthz.PATReq
+	if session.PatID != "" {
+		opName := ram.ops.OperationName(op)
+		var patEntityType string
+		switch pr.ObjectType {
+		case policies.GroupType:
+			patEntityType = auth.GroupsType.String()
+		case policies.ClientType:
+			patEntityType = auth.ClientsType.String()
+		case policies.ChannelType:
+			patEntityType = auth.ChannelsType.String()
+		default:
+			return errors.Wrap(errors.ErrAuthorization, fmt.Errorf("unsupported entity type for PAT: %s", pr.ObjectType))
+		}
+		pat = &smqauthz.PATReq{
+			UserID:     session.UserID,
+			PatID:      session.PatID,
+			EntityID:   pr.Object,
+			EntityType: patEntityType,
+			Operation:  auth.RoleOperationPrefix + opName,
+			Domain:     session.DomainID,
+		}
 	}
-	pr.Operation = auth.RoleOperationPrefix + opName
 
-	if err := ram.authz.Authorize(ctx, pr); err != nil {
+	if err := ram.authz.Authorize(ctx, pr, pat); err != nil {
 		return errors.Wrap(errors.ErrAuthorization, err)
 	}
 
@@ -338,7 +349,7 @@ func (ram RoleManagerAuthorizationMiddleware) validateMembers(ctx context.Contex
 				SubjectKind: policies.UsersKind,
 				Object:      policies.SuperMQObject,
 				ObjectType:  policies.PlatformType,
-			}); err != nil {
+			}, nil); err != nil {
 				return errors.Wrap(errors.ErrMissingMember, err)
 			}
 		}
@@ -353,7 +364,7 @@ func (ram RoleManagerAuthorizationMiddleware) validateMembers(ctx context.Contex
 				SubjectKind: policies.UsersKind,
 				Object:      session.DomainID,
 				ObjectType:  policies.DomainType,
-			}); err != nil {
+			}, nil); err != nil {
 				return errors.Wrap(errors.ErrMissingDomainMember, err)
 			}
 		}

users/middleware/authorization.go

@@ -7,6 +7,7 @@ import (
 	"context"
 
 	grpcTokenV1 "github.com/absmach/supermq/api/grpc/token/v1"
+	"github.com/absmach/supermq/auth"
 	"github.com/absmach/supermq/pkg/authn"
 	smqauthz "github.com/absmach/supermq/pkg/authz"
 	svcerr "github.com/absmach/supermq/pkg/errors/service"
@@ -190,7 +191,7 @@ func (am *authorizationMiddleware) checkSuperAdmin(ctx context.Context, session
 		Permission:  policies.AdminPermission,
 		ObjectType:  policies.PlatformType,
 		Object:      policies.SuperMQObject,
-	}); err != nil {
+	}, nil); err != nil {
 		return err
 	}
 	return nil
@@ -207,7 +208,19 @@ func (am *authorizationMiddleware) authorize(ctx context.Context, session authn.
 		Object:      obj,
 	}
 
-	if err := am.authz.Authorize(ctx, req); err != nil {
+	var pat *smqauthz.PATReq
+	if session.PatID != "" {
+		pat = &smqauthz.PATReq{
+			UserID:     session.UserID,
+			PatID:      session.PatID,
+			EntityID:   subj,
+			EntityType: auth.UsersType.String(),
+			Operation:  perm,
+			Domain:     domain,
+		}
+	}
+
+	if err := am.authz.Authorize(ctx, req, pat); err != nil {
 		return err
 	}
 	return nil