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/* Chrysalide - Outil d'analyse de fichiers binaires
* server.c - équivalent Python du fichier "analysis/db/server.c"
*
* Copyright (C) 2019 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 <pygobject.h>
#include <i18n.h>
#include <analysis/db/server.h>
#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(host=None, 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, &PyGObject_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;
}
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