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/* Chrysalide - Outil d'analyse de fichiers binaires
* client.c - équivalent Python du fichier "analysis/db/client.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 "client.h"
#include <assert.h>
#include <pygobject.h>
#include <i18n.h>
#include <analysis/db/client.h>
#include <core/collections.h>
#include "collection.h"
#include "../../access.h"
#include "../../helpers.h"
#include "../../struct.h"
#define HUB_CLIENT_DOC \
"HubClient provides and receives binary updates to and from a connected" \
" to a server.\n" \
"\n" \
"Such clients must be authenticated and communications are encrypted using TLS.\n" \
"\n" \
"Instances can be created directly." \
"\n" \
"HubClient instances emit the following signals:\n" \
"* 'snapshots-updated'\n" \
" This signal is emitted when the snapshot list has evolved.\n" \
"\n" \
" Handlers are expected to have only one argument: the client managing the" \
" updated snapshots.\n" \
"* 'snapshot-changed'\n" \
" This signal is emitted when the identifier of the current snapshot changed.\n" \
"\n" \
" Handlers are expected to have only one argument: the client managing the" \
" snapshots."
/* Démarre la connexion à la base de données. */
static PyObject *py_hub_client_start(PyObject *, PyObject *);
/* Arrête la connexion à la base de données. */
static PyObject *py_hub_client_stop(PyObject *, PyObject *);
/******************************************************************************
* *
* Paramètres : self = client à manipuler. *
* args = paramètres à transmettre à l'appel natif. *
* *
* Description : Démarre la connexion à la base de données. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_hub_client_start(PyObject *self, PyObject *args)
{
PyObject *result; /* Bilan 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. */
GHubClient *client; /* Version native du serveur */
bool status; /* Bilan de l'opération */
#define HUB_CLIENT_START_METHOD PYTHON_METHOD_DEF \
( \
start, "$self, /, host=None, port='1337', ipv6=True", \
METH_VARARGS, py_hub_client, \
"Connect to a server for binary updates.\n" \
"\n" \
"host and port define the properties of the server, and ipv6" \
" tries to establish IPv6 connections first." \
)
host = NULL;
port = "1337";
ipv6 = true;
ret = PyArg_ParseTuple(args, "|ssp", &host, &port, &ipv6);
if (!ret) return NULL;
client = G_HUB_CLIENT(pygobject_get(self));
if (host == NULL)
status = g_hub_client_start_internal(client);
else
status = g_hub_client_start_remote(client, host, port, ipv6);
result = status ? Py_True : Py_False;
Py_INCREF(result);
return result;
}
/******************************************************************************
* *
* Paramètres : self = client à manipuler. *
* args = arguments d'appel non utilisés ici. *
* *
* Description : Arrête la connexion à la base de données. *
* *
* Retour : - *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_hub_client_stop(PyObject *self, PyObject *args)
{
PyObject *result; /* Bilan à retourner */
GHubClient *client; /* Version native du serveur */
#define HUB_CLIENT_STOP_METHOD PYTHON_METHOD_DEF \
( \
stop, "$self, /", \
METH_NOARGS, py_hub_client, \
"Stop the client." \
)
client = G_HUB_CLIENT(pygobject_get(self));
g_hub_client_stop(client);
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_client_type(void)
{
static PyMethodDef py_hub_client_methods[] = {
HUB_CLIENT_START_METHOD,
HUB_CLIENT_STOP_METHOD,
{ NULL }
};
static PyGetSetDef py_hub_client_getseters[] = {
{ NULL }
};
static PyTypeObject py_hub_client_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "pychrysalide.analysis.db.HubClient",
.tp_basicsize = sizeof(PyGObject),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_doc = HUB_CLIENT_DOC,
.tp_methods = py_hub_client_methods,
.tp_getset = py_hub_client_getseters,
.tp_new = no_python_constructor_allowed,
};
return &py_hub_client_type;
}
/******************************************************************************
* *
* Paramètres : module = module dont la définition est à compléter. *
* *
* Description : Prend en charge l'objet 'pychrysalide....db.HubClient'. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
bool ensure_python_hub_client_is_registered(void)
{
PyTypeObject *type; /* Type Python 'HubClient' */
PyObject *module; /* Module à recompléter */
PyObject *dict; /* Dictionnaire du module */
type = get_python_hub_client_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_CLIENT, type, &PyGObject_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 client de base de données. *
* *
* Retour : Bilan de l'opération, voire indications supplémentaires. *
* *
* Remarques : - *
* *
******************************************************************************/
int convert_to_hub_client(PyObject *arg, void *dst)
{
int result; /* Bilan à retourner */
result = PyObject_IsInstance(arg, (PyObject *)get_python_hub_client_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 client");
break;
case 1:
*((GHubClient **)dst) = G_HUB_CLIENT(pygobject_get(arg));
break;
default:
assert(false);
break;
}
return result;
}
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