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/* Chrysalide - Outil d'analyse de fichiers binaires
* core.c - équivalent Python du fichier "analysis/scan/core.c"
*
* Copyright (C) 2023 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 "core.h"
#include <pygobject.h>
#include <analysis/scan/core.h>
#include "patterns/modifier.h"
#include "../../access.h"
#include "../../helpers.h"
/* Inscrit un modificateur dans la liste des disponibles. */
static PyObject *py_scan_register_token_modifier(PyObject *, PyObject *);
/* Fournit le modificateur correspondant à un nom. */
static PyObject *py_scan_find_token_modifiers_for_name(PyObject *, PyObject *);
/******************************************************************************
* *
* Paramètres : self = objet Python concerné par l'appel. *
* args = arguments fournis à l'appel. *
* *
* Description : Inscrit un modificateur dans la liste des disponibles. *
* *
* Retour : Bilan des enregistrements effectués : True si nouveauté. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_scan_register_token_modifier(PyObject *self, PyObject *args)
{
PyObject *result; /* Bilan à retourner */
PyObject *instance; /* Instance Python fournie */
GScanTokenModifier *modifier; /* Version native */
int ret; /* Bilan de lecture des args. */
bool status; /* Bilan d'un enregistrement */
#define SCAN_REGISTER_TOKEN_MODIFIER_METHOD PYTHON_METHOD_DEF \
( \
register_token_modifier, "inst, /", \
METH_VARARGS, py_scan, \
"Register a token modifier for byte patterns to scan.\n" \
"\n" \
"This instance will be used as singleton and has to be a" \
" subclass of pychrysalide.analysis.scan.patterns.TokenModifier." \
)
ret = PyArg_ParseTuple(args, "O!", get_python_scan_token_modifier_type(), &instance);
if (!ret) return NULL;
modifier = G_SCAN_TOKEN_MODIFIER(pygobject_get(instance));
status = register_scan_token_modifier(modifier);
result = status ? Py_True : Py_False;
Py_INCREF(result);
return result;
}
/******************************************************************************
* *
* Paramètres : self = objet Python concerné par l'appel. *
* args = arguments fournis à l'appel. *
* *
* Description : Fournit le modificateur correspondant à un nom. *
* *
* Retour : Instance du modificateur identifié ou None. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_scan_find_token_modifiers_for_name(PyObject *self, PyObject *args)
{
PyObject *result; /* Bilan à retourner */
sized_string_t name; /* Nom d'appel à rechercher */
Py_ssize_t len; /* Taille de ce nom */
int ret; /* Bilan de lecture des args. */
GScanTokenModifier *modifier; /* Instance mise en place */
#define SCAN_FIND_TOKEN_MODIFIERS_FOR_NAME_METHOD PYTHON_METHOD_DEF \
( \
find_token_modifiers_for_name, "name, /", \
METH_VARARGS, py_scan, \
"Provide the registered instance of a pattern modifier linked" \
" to a given *name* provided as a key string.\n" \
"\n" \
"The returned instance is an object inherited from" \
" pychrysalide.analysis.scan.patterns.TokenModifier or *None*" \
" if no instance was found for the provided name." \
)
ret = PyArg_ParseTuple(args, "s#", &name.static_data, &len);
if (!ret) return NULL;
name.len = len;
modifier = find_scan_token_modifiers_for_name(&name);
if (modifier != NULL)
{
result = pygobject_new(G_OBJECT(modifier));
g_object_unref(G_OBJECT(modifier));
}
else
{
result = Py_None;
Py_INCREF(result);
}
return result;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Définit une extension du module 'scan' à compléter. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
bool populate_scan_module_with_core_methods(void)
{
bool result; /* Bilan à retourner */
PyObject *module; /* Module à recompléter */
static PyMethodDef py_core_methods[] = {
SCAN_REGISTER_TOKEN_MODIFIER_METHOD,
SCAN_FIND_TOKEN_MODIFIERS_FOR_NAME_METHOD,
{ NULL }
};
module = get_access_to_python_module("pychrysalide.analysis.scan");
result = register_python_module_methods(module, py_core_methods);
return result;
}
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