/* Chrysalide - Outil d'analyse de fichiers binaires * encapsulated.c - prototypes pour l'équivalent Python du fichier "analysis/contents/encapsulated.c" * * Copyright (C) 2018-2019 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 "encapsulated.h" #include #include #include #include "../content.h" #include "../../access.h" #include "../../helpers.h" CREATE_DYN_CONSTRUCTOR(encaps_content, G_TYPE_ENCAPS_CONTENT); /* Initialise une instance sur la base du dérivé de GObject. */ static int py_encaps_content_init(PyObject *, PyObject *, PyObject *); /* Indique la base d'un contenu binaire encapsulé. */ static PyObject *py_encaps_content_get_base(PyObject *, void *); /* Fournit le chemin vers le contenu interne représenté. */ static PyObject *py_encaps_content_get_path(PyObject *, void *); /* Indique le contenu binaire embarqué dans une encapsulation. */ static PyObject *py_encaps_content_get_endpoint(PyObject *, void *); /****************************************************************************** * * * Paramètres : self = objet à initialiser (théoriquement). * * args = arguments fournis à l'appel. * * kwds = arguments de type key=val fournis. * * * * Description : Initialise une instance sur la base du dérivé de GObject. * * * * Retour : 0. * * * * Remarques : - * * * ******************************************************************************/ static int py_encaps_content_init(PyObject *self, PyObject *args, PyObject *kwds) { GBinContent *base; /* Base de l'extraction */ const char *path; /* Chemin vers le contenu final*/ GBinContent *endpoint; /* Contenu accessible au final */ int ret; /* Bilan de lecture des args. */ GEncapsContent *content; /* Version GLib du contenu */ #define ENCAPS_CONTENT_DOC \ "EncapsulatedContent gathers items relative to a binary encapsulated" \ " content.\n" \ "\n" \ "For instance, if a ZIP archive is processed, the encapsulated content" \ " stores:\n" \ "* the archive as a base;\n" \ "* the access path to the archive member;\n" \ "* the content of this extracted member.\n" \ "\n" \ "Instances can be created using the following constructor:\n" \ "\n" \ " EncapsulatedContent(base, path, endpoint)" \ "\n" \ "Where base, path and endpoint are the previously described expected" \ " properties. The base and the endpoint must be" \ " pychrysalide.analysis.BinContent instances and the access path must" \ " be provided as a string." /* Récupération des paramètres */ ret = PyArg_ParseTuple(args, "O&sO&", convert_to_binary_content, &base, &path, convert_to_binary_content, &endpoint); if (!ret) return -1; /* Initialisation d'un objet GLib */ ret = forward_pygobjet_init(self); if (ret == -1) return -1; /* Eléments de base */ content = G_ENCAPS_CONTENT(pygobject_get(self)); if (!g_encaps_content_create(content, base, path, endpoint)) { PyErr_SetString(PyExc_ValueError, _("Unable to create encapsulated content.")); return -1; } return 0; } /****************************************************************************** * * * Paramètres : self = objet Python concerné par l'appel. * * closure = non utilisé ici. * * * * Description : Indique la base d'un contenu binaire encapsulé. * * * * Retour : Instance de contenu binaire ou None si aucune. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_encaps_content_get_base(PyObject *self, void *closure) { PyObject *result; /* Valeur à retourner */ GEncapsContent *content; /* Contenu binaire à consulter */ GBinContent *target; /* Contenu binaire visé */ #define ENCAPS_CONTENT_BASE_ATTRIB PYTHON_GET_DEF_FULL \ ( \ base, py_encaps_content, \ "Give access to the base of the encapsulated content." \ ) content = G_ENCAPS_CONTENT(pygobject_get(self)); target = g_encaps_content_get_base(content); if (target == NULL) { result = Py_None; Py_INCREF(result); } else { result = pygobject_new(G_OBJECT(target)); g_object_unref(G_OBJECT(target)); } return result; } /****************************************************************************** * * * Paramètres : self = objet Python concerné par l'appel. * * closure = non utilisé ici. * * * * Description : Fournit le chemin vers le contenu interne représenté. * * * * Retour : Chemin d'accès au contenu binaire. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_encaps_content_get_path(PyObject *self, void *closure) { PyObject *result; /* Valeur à retourner */ GEncapsContent *content; /* Contenu binaire à consulter */ const char *path; /* Chemin d'accès à transmettre*/ #define ENCAPS_CONTENT_PATH_ATTRIB PYTHON_GET_DEF_FULL \ ( \ path, py_encaps_content, \ "Provide the access path to the inner binary content." \ ) content = G_ENCAPS_CONTENT(pygobject_get(self)); path = g_encaps_content_get_path(content); result = PyUnicode_FromString(path); return result; } /****************************************************************************** * * * Paramètres : self = objet Python concerné par l'appel. * * closure = non utilisé ici. * * * * Description : Indique le contenu binaire embarqué dans une encapsulation. * * * * Retour : Instance de contenu binaire ou None si aucune. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_encaps_content_get_endpoint(PyObject *self, void *closure) { PyObject *result; /* Valeur à retourner */ GEncapsContent *content; /* Contenu binaire à consulter */ GBinContent *target; /* Contenu binaire visé */ #define ENCAPS_CONTENT_ENDPOINT_ATTRIB PYTHON_GET_DEF_FULL \ ( \ endpoint, py_encaps_content, \ "Give access to the encapsulated binary content." \ ) content = G_ENCAPS_CONTENT(pygobject_get(self)); target = g_encaps_content_get_base(content); if (target == NULL) { result = Py_None; Py_INCREF(result); } else { result = pygobject_new(G_OBJECT(target)); g_object_unref(G_OBJECT(target)); } return result; } /****************************************************************************** * * * Paramètres : - * * * * Description : Fournit un accès à une définition de type à diffuser. * * * * Retour : Définition d'objet pour Python. * * * * Remarques : - * * * ******************************************************************************/ PyTypeObject *get_python_encaps_content_type(void) { static PyMethodDef py_encaps_content_methods[] = { { NULL } }; static PyGetSetDef py_encaps_content_getseters[] = { ENCAPS_CONTENT_BASE_ATTRIB, ENCAPS_CONTENT_PATH_ATTRIB, ENCAPS_CONTENT_ENDPOINT_ATTRIB, { NULL } }; static PyTypeObject py_encaps_content_type = { PyVarObject_HEAD_INIT(NULL, 0) .tp_name = "pychrysalide.analysis.contents.EncapsulatedContent", .tp_basicsize = sizeof(PyGObject), .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, .tp_doc = ENCAPS_CONTENT_DOC, .tp_methods = py_encaps_content_methods, .tp_getset = py_encaps_content_getseters, .tp_init = py_encaps_content_init, .tp_new = py_encaps_content_new, }; return &py_encaps_content_type; } /****************************************************************************** * * * Paramètres : module = module dont la définition est à compléter. * * * * Description : Prend en charge l'objet 'pychrysalide...EncapsulatedContent'.* * * * Retour : Bilan de l'opération. * * * * Remarques : - * * * ******************************************************************************/ bool ensure_python_encaps_content_is_registered(void) { PyTypeObject *type; /* Type 'EncapsulatedContent' */ PyObject *module; /* Module à recompléter */ PyObject *dict; /* Dictionnaire du module */ type = get_python_encaps_content_type(); if (!PyType_HasFeature(type, Py_TPFLAGS_READY)) { module = get_access_to_python_module("pychrysalide.analysis.contents"); dict = PyModule_GetDict(module); if (!ensure_python_binary_content_is_registered()) return false; if (!register_class_for_pygobject(dict, G_TYPE_ENCAPS_CONTENT, type)) return false; } return true; }