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/*
Unix SMB/CIFS implementation.
Python interface to ldb - utility functions.
Copyright (C) 2007-2010 Jelmer Vernooij <jelmer@samba.org>
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "lib/replace/system/python.h"
#include "ldb.h"
#include "pyldb.h"
static PyObject *ldb_module = NULL;
/**
* Find out PyTypeObject in ldb module for a given typename
*/
static PyTypeObject * PyLdb_GetPyType(const char *typename)
{
PyTypeObject *type = NULL;
bool ok;
if (ldb_module == NULL) {
ldb_module = PyImport_ImportModule("ldb");
if (ldb_module == NULL) {
return NULL;
}
}
type = (PyTypeObject *)PyObject_GetAttrString(ldb_module, typename);
if (type == NULL) {
PyErr_Format(PyExc_NameError,
"Unable to find type %s in ldb module",
typename);
return NULL;
}
ok = PyType_Check(type);
if (! ok) {
PyErr_Format(PyExc_TypeError,
"Expected type ldb.%s, not %s",
typename, Py_TYPE(type)->tp_name);
Py_DECREF(type);
return NULL;
}
return type;
}
bool pyldb_check_type(PyObject *obj, const char *typename)
{
bool ok = false;
PyTypeObject *type = PyLdb_GetPyType(typename);
if (type != NULL) {
ok = PyObject_TypeCheck(obj, type);
Py_DECREF(type);
}
return ok;
}
/**
* Obtain a ldb DN from a Python object.
*
* @param mem_ctx Memory context
* @param object Python object
* @param ldb_ctx LDB context
* @return Whether or not the conversion succeeded
*/
bool pyldb_Object_AsDn(TALLOC_CTX *mem_ctx, PyObject *object,
struct ldb_context *ldb_ctx, struct ldb_dn **dn)
{
struct ldb_dn *odn;
PyTypeObject *PyLdb_Dn_Type;
bool is_dn;
if (ldb_ctx != NULL && (PyUnicode_Check(object))) {
const char *odn_str = NULL;
odn_str = PyUnicode_AsUTF8(object);
if (odn_str == NULL) {
return false;
}
odn = ldb_dn_new(mem_ctx, ldb_ctx, odn_str);
if (odn == NULL) {
PyErr_NoMemory();
return false;
}
*dn = odn;
return true;
}
if (ldb_ctx != NULL && PyBytes_Check(object)) {
const char *odn_str = NULL;
odn_str = PyBytes_AsString(object);
if (odn_str == NULL) {
return false;
}
odn = ldb_dn_new(mem_ctx, ldb_ctx, odn_str);
if (odn == NULL) {
PyErr_NoMemory();
return false;
}
*dn = odn;
return true;
}
PyLdb_Dn_Type = PyLdb_GetPyType("Dn");
if (PyLdb_Dn_Type == NULL) {
return false;
}
is_dn = PyObject_TypeCheck(object, PyLdb_Dn_Type);
Py_DECREF(PyLdb_Dn_Type);
if (is_dn) {
*dn = pyldb_Dn_AS_DN(object);
return true;
}
PyErr_SetString(PyExc_TypeError, "Expected DN");
return false;
}
PyObject *pyldb_Dn_FromDn(struct ldb_dn *dn)
{
TALLOC_CTX *mem_ctx = NULL;
struct ldb_dn *dn_ref = NULL;
PyLdbDnObject *py_ret;
PyTypeObject *PyLdb_Dn_Type;
if (dn == NULL) {
Py_RETURN_NONE;
}
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
return PyErr_NoMemory();
}
dn_ref = talloc_reference(mem_ctx, dn);
if (dn_ref == NULL) {
talloc_free(mem_ctx);
return PyErr_NoMemory();
}
PyLdb_Dn_Type = PyLdb_GetPyType("Dn");
if (PyLdb_Dn_Type == NULL) {
talloc_free(mem_ctx);
return NULL;
}
py_ret = (PyLdbDnObject *)PyLdb_Dn_Type->tp_alloc(PyLdb_Dn_Type, 0);
Py_DECREF(PyLdb_Dn_Type);
if (py_ret == NULL) {
talloc_free(mem_ctx);
PyErr_NoMemory();
return NULL;
}
py_ret->mem_ctx = mem_ctx;
py_ret->dn = dn;
return (PyObject *)py_ret;
}
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