/* Chrysalide - Outil d'analyse de fichiers binaires * server.c - équivalent Python du fichier "analysis/db/server.c" * * Copyright (C) 2019-2020 Cyrille Bagard * * This file is part of Chrysalide. * * Chrysalide is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * Chrysalide is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "server.h" #include #include #include #include "constants.h" #include "../../access.h" #include "../../helpers.h" /* Crée un nouvel objet Python de type 'HubServer'. */ static PyObject *py_hub_server_new(PyTypeObject *, PyObject *, PyObject *); /* Démarre le serveur de base de données. */ static PyObject *py_hub_server_start(PyObject *, PyObject *); /* Arrête le serveur de base de données. */ static PyObject *py_hub_server_stop(PyObject *, PyObject *); /****************************************************************************** * * * Paramètres : type = type de l'objet à instancier. * * args = arguments fournis à l'appel. * * kwds = arguments de type key=val fournis. * * * * Description : Crée un nouvel objet Python de type 'HubServer'. * * * * Retour : Instance Python mise en place. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_hub_server_new(PyTypeObject *type, PyObject *args, PyObject *kwds) { PyObject *result; /* Instance à retourner */ const char *host; /* Désignation de serveur */ const char *port; /* Port d'écoute associé */ bool ipv6; /* Préférence pour IPv6 ? */ int ret; /* Bilan de lecture des args. */ GHubServer *server; /* Serveur mis en place */ #define HUB_SERVER_DOC \ "HubServer creates a server listening for binary updates from clients.\n" \ "\n" \ "Such clients are authenticated and communications are encrypted using TLS.\n" \ "\n" \ "There are two kinds of servers:\n" \ "* one \"local\", which aims to server one given local user account;\n" \ "* one \"remote\", which may target several different users at the same time.\n" \ "\n" \ "Instances can be created using the following constructor:\n" \ "\n" \ " HubServer()" \ " HubServer(host='localhost', port='1337', ipv6=True)" \ "\n" \ "Where host and port define the listening properties of the server, and ipv6" \ " tries to establish IPv6 connections first." \ "\n" \ "Without any parameters, a local server is created." host = NULL; port = "1337"; ipv6 = true; ret = PyArg_ParseTuple(args, "|ssp", &host, &port, &ipv6); if (!ret) return NULL; if (host == NULL) server = g_hub_server_new_internal(); else server = g_hub_server_new_remote(host, port, ipv6); if (server != NULL) { result = pygobject_new(G_OBJECT(server)); g_object_unref(server); } else result = NULL; return result; } /****************************************************************************** * * * Paramètres : self = serveur à manipuler. * * args = arguments d'appel non utilisés ici. * * * * Description : Démarre le serveur de base de données. * * * * Retour : Bilan de l'opération. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_hub_server_start(PyObject *self, PyObject *args) { PyObject *result; /* Bilan à retourner */ int backlog; /* Nombre de connexions */ int ret; /* Bilan de lecture des args. */ GHubServer *server; /* Version native du serveur */ bool status; /* Bilan de l'opération */ #define HUB_SERVER_START_METHOD PYTHON_METHOD_DEF \ ( \ start, "$self, /, backlog=10", \ METH_VARARGS, py_hub_server, \ "Run a listening server waiting for client connections." \ "\n" \ "The backlog argument defines the maximum length to which" \ " the queue of pending connections may grow." \ "\n" \ "The returned value is a status of type" \ " pychrysalide.analysis.db.HubServer.ServerStartStatus." \ ) backlog = 10; ret = PyArg_ParseTuple(args, "|i", &backlog); if (!ret) return NULL; server = G_HUB_SERVER(pygobject_get(self)); status = g_hub_server_start(server, backlog, true); result = cast_with_constants_group_from_type(get_python_hub_server_type(), "ServerStartStatus", status); return result; } /****************************************************************************** * * * Paramètres : self = serveur à manipuler. * * args = arguments d'appel non utilisés ici. * * * * Description : Arrête le serveur de base de données. * * * * Retour : - * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_hub_server_stop(PyObject *self, PyObject *args) { PyObject *result; /* Bilan à retourner */ GHubServer *server; /* Version native du serveur */ #define HUB_SERVER_STOP_METHOD PYTHON_METHOD_DEF \ ( \ stop, "$self, /", \ METH_NOARGS, py_hub_server, \ "Stop the listening server." \ ) server = G_HUB_SERVER(pygobject_get(self)); g_hub_server_stop(server); result = Py_None; Py_INCREF(result); return result; } /****************************************************************************** * * * Paramètres : - * * * * Description : Fournit un accès à une définition de type à diffuser. * * * * Retour : Définition d'objet pour Python. * * * * Remarques : - * * * ******************************************************************************/ PyTypeObject *get_python_hub_server_type(void) { static PyMethodDef py_hub_server_methods[] = { HUB_SERVER_START_METHOD, HUB_SERVER_STOP_METHOD, { NULL } }; static PyGetSetDef py_hub_server_getseters[] = { { NULL } }; static PyTypeObject py_hub_server_type = { PyVarObject_HEAD_INIT(NULL, 0) .tp_name = "pychrysalide.analysis.db.HubServer", .tp_basicsize = sizeof(PyGObject), .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, .tp_doc = HUB_SERVER_DOC, .tp_methods = py_hub_server_methods, .tp_getset = py_hub_server_getseters, .tp_new = py_hub_server_new, }; return &py_hub_server_type; } /****************************************************************************** * * * Paramètres : module = module dont la définition est à compléter. * * * * Description : Prend en charge l'objet 'pychrysalide....db.HubServer'. * * * * Retour : Bilan de l'opération. * * * * Remarques : - * * * ******************************************************************************/ bool ensure_python_hub_server_is_registered(void) { PyTypeObject *type; /* Type Python 'HubServer' */ PyObject *module; /* Module à recompléter */ PyObject *dict; /* Dictionnaire du module */ type = get_python_hub_server_type(); if (!PyType_HasFeature(type, Py_TPFLAGS_READY)) { module = get_access_to_python_module("pychrysalide.analysis.db"); dict = PyModule_GetDict(module); if (!register_class_for_pygobject(dict, G_TYPE_HUB_SERVER, type)) return false; if (!define_hub_server_constants(type)) return false; } return true; } /****************************************************************************** * * * Paramètres : arg = argument quelconque à tenter de convertir. * * dst = destination des valeurs récupérées en cas de succès. * * * * Description : Tente de convertir en serveur de base de données. * * * * Retour : Bilan de l'opération, voire indications supplémentaires. * * * * Remarques : - * * * ******************************************************************************/ int convert_to_hub_server(PyObject *arg, void *dst) { int result; /* Bilan à retourner */ result = PyObject_IsInstance(arg, (PyObject *)get_python_hub_server_type()); switch (result) { case -1: /* L'exception est déjà fixée par Python */ result = 0; break; case 0: PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to hub server"); break; case 1: *((GHubServer **)dst) = G_HUB_SERVER(pygobject_get(arg)); break; default: assert(false); break; } return result; }