// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Mobius Forensic Toolkit
// Copyright (C) 2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021 Eduardo Aguiar
//
// This program 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 2, or (at your option) any later
// version.
//
// This program 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, see <http://www.gnu.org/licenses/>.
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \file mfc_decoder.cc C++ API <i>mobius.decoder.mfc_decoder</i> class wrapper
//! \author Eduardo Aguiar
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#include <pymobius.h>
#include "mfc_decoder.h"
#include "module.h"
#include "io/reader.h"

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief create <i>mfc_decoder</i> Python object from C++ object
//! \param obj C++ object
//! \return new mfc_decoder object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyObject *
PyMobius_Decoder_Mfc_Decoder_from_cpp (mobius::decoder::mfc_decoder obj)
{
  PyObject *ret = _PyObject_New (&decoder_mfc_decoder_t);

  if (ret)
    ((decoder_mfc_decoder_o *) ret)->obj = new mobius::decoder::mfc_decoder (obj);

  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>skip</i> method implementation
//! \param self object
//! \param args argument list
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_skip (decoder_mfc_decoder_o *self, PyObject *args)
{
  // parse input args
  std::uint64_t arg_size;

  try
    {
      arg_size = mobius::py::get_arg_as_uint64_t (args, 0);
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_TypeError, e.what ());
      return nullptr;
    }

  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      self->obj->skip (arg_size);
      ret = mobius::py::pynone ();
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_bool</i> method implementation
//! \param self object
//! \param args argument list
//! \return boolean value
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_bool (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pybool_from_bool (self->obj->get_bool ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_word</i> method implementation
//! \param self object
//! \param args argument list
//! \return 16-bits value
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_word (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pylong_from_std_uint16_t (self->obj->get_word ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_dword</i> method implementation
//! \param self object
//! \param args argument list
//! \return 32-bits value
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_dword (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pylong_from_std_uint32_t (self->obj->get_dword ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_qword</i> method implementation
//! \param self object
//! \param args argument list
//! \return 64-bits value
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_qword (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pylong_from_std_uint64_t (self->obj->get_qword ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_int</i> method implementation
//! \param self object
//! \param args argument list
//! \return 32-bits signed value
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_int (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pylong_from_std_int32_t (self->obj->get_int ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_count</i> method implementation
//! \param self object
//! \param args argument list
//! \return 32-bits count
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_count (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pylong_from_std_uint32_t (self->obj->get_count ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_string</i> method implementation
//! \param self object
//! \param args argument list
//! \return CString as std::string
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_string (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = PyString2_from_std_string (self->obj->get_string ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_guid</i> method implementation
//! \param self object
//! \param args argument list
//! \return GUID as std::string
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_guid (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = PyString2_from_std_string (self->obj->get_guid ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_hex_string</i> method implementation
//! \param self object
//! \param args argument list
//! \return hexadecimal string
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_hex_string (decoder_mfc_decoder_o *self, PyObject *args)
{
  // parse input args
  std::uint64_t arg_size;

  try
    {
      arg_size = mobius::py::get_arg_as_uint64_t (args, 0);
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_TypeError, e.what ());
      return nullptr;
    }

  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = PyString2_from_std_string (self->obj->get_hex_string (arg_size));
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_ipv4</i> method implementation
//! \param self object
//! \param args argument list
//! \return IPv4 string
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_ipv4 (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = PyString2_from_std_string (self->obj->get_ipv4 ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_data</i> method implementation
//! \param self object
//! \param args argument list
//! \return data
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_data (decoder_mfc_decoder_o *self, PyObject *args)
{
  // parse input args
  std::uint64_t arg_size;

  try
    {
      arg_size = mobius::py::get_arg_as_uint64_t (args, 0);
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_TypeError, e.what ());
      return nullptr;
    }

  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pybytes_from_bytearray (self->obj->get_data (arg_size));
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_ctime</i> method implementation
//! \param self object
//! \param args argument list
//! \return CTime as datetime
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_ctime (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pydatetime_from_datetime (self->obj->get_ctime ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_nt_time</i> method implementation
//! \param self object
//! \param args argument list
//! \return NT datetime as datetime
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_nt_time (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pydatetime_from_datetime (self->obj->get_nt_time ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get_unix_time</i> method implementation
//! \param self object
//! \param args argument list
//! \return NT datetime as datetime
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_unix_time (decoder_mfc_decoder_o *self, PyObject *)
{
  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = mobius::py::pydatetime_from_datetime (self->obj->get_unix_time ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Methods structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyMethodDef tp_methods[] =
{
  {
    (char *) "skip",
    (PyCFunction) tp_f_skip,
    METH_VARARGS,
    "Skip n bytes ahead"
  },
  {
    (char *) "get_bool",
    (PyCFunction) tp_f_get_bool,
    METH_VARARGS,
    "get boolean value"
  },
  {
    (char *) "get_word",
    (PyCFunction) tp_f_get_word,
    METH_VARARGS,
    "get 16-bits value"
  },
  {
    (char *) "get_dword",
    (PyCFunction) tp_f_get_dword,
    METH_VARARGS,
    "get 32-bits value"
  },
  {
    (char *) "get_qword",
    (PyCFunction) tp_f_get_qword,
    METH_VARARGS,
    "get 64-bits value"
  },
  {
    (char *) "get_int",
    (PyCFunction) tp_f_get_int,
    METH_VARARGS,
    "get 32-bits signed value"
  },
  {
    (char *) "get_count",
    (PyCFunction) tp_f_get_count,
    METH_VARARGS,
    "get count"
  },
  {
    (char *) "get_string",
    (PyCFunction) tp_f_get_string,
    METH_VARARGS,
    "get CString"
  },
  {
    (char *) "get_guid",
    (PyCFunction) tp_f_get_guid,
    METH_VARARGS,
    "get GUID"
  },
  {
    (char *) "get_hex_string",
    (PyCFunction) tp_f_get_hex_string,
    METH_VARARGS,
    "get hexadecimal string"
  },
  {
    (char *) "get_ipv4",
    (PyCFunction) tp_f_get_ipv4,
    METH_VARARGS,
    "get IPv4 as string"
  },
  {
    (char *) "get_data",
    (PyCFunction) tp_f_get_data,
    METH_VARARGS,
    "get data"
  },
  {
    (char *) "get_ctime",
    (PyCFunction) tp_f_get_ctime,
    METH_VARARGS,
    "get CTime"
  },
  {
    (char *) "get_nt_time",
    (PyCFunction) tp_f_get_nt_time,
    METH_VARARGS,
    "get NT datetime"
  },
  {
    (char *) "get_unix_time",
    (PyCFunction) tp_f_get_unix_time,
    METH_VARARGS,
    "get Unix datetime"
  },
  {NULL, NULL, 0, NULL} // sentinel
};

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>mfc_decoder</i> constructor
//! \param type type object
//! \param args argument list
//! \param kwds keywords dict
//! \return new <i>mfc_decoder</i> object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_new (PyTypeObject *type, PyObject *args, PyObject *)
{
  // Parse input args
  mobius::io::reader arg_reader;

  try
    {
      arg_reader = PyMobius_IO_Reader_as_cpp (mobius::py::get_arg (args, 0));
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_TypeError, e.what ());
      return nullptr;
    }

  // Create Python object
  decoder_mfc_decoder_o *ret = reinterpret_cast <decoder_mfc_decoder_o *> (type->tp_alloc (type, 0));

  if (ret)
    {
      try
        {
          ret->obj = new mobius::decoder::mfc_decoder (arg_reader);
        }
      catch (const std::exception& e)
        {
          Py_DECREF (ret);
          PyErr_SetString (PyExc_Exception, e.what ());
          ret = nullptr;
        }
    }

  return reinterpret_cast <PyObject *> (ret);
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>mfc_decoder</i> deallocator
//! \param self object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static void
tp_dealloc (decoder_mfc_decoder_o *self)
{
  delete self->obj;
  self->ob_type->tp_free ((PyObject*) self);
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Type structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyTypeObject decoder_mfc_decoder_t =
{
  PyVarObject_HEAD_INIT (NULL, 0)
  "mobius.decoder.mfc_decoder",            		// tp_name
  sizeof (decoder_mfc_decoder_o),          		// tp_basicsize
  0,                                       		// tp_itemsize
  (destructor) tp_dealloc,                 		// tp_dealloc
  0,                                       		// tp_print
  0,                                       		// tp_getattr
  0,                                       		// tp_setattr
  0,                                       		// tp_compare
  0,                                       		// tp_repr
  0,                                       		// tp_as_number
  0,                                       		// tp_as_sequence
  0,                                       		// tp_as_mapping
  0,                                       		// tp_hash
  0,                                       		// tp_call
  0,                                       		// tp_str
  0,                                       		// tp_getattro
  0,                                       		// tp_setattro
  0,                                       		// tp_as_buffer
  Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,		// tp_flags
  "mfc_decoder class",                     		// tp_doc
  0,                                       		// tp_traverse
  0,                                       		// tp_clear
  0,                                       		// tp_richcompare
  0,                                       		// tp_weaklistoffset
  0,                                       		// tp_iter
  0,                                       		// tp_iternext
  tp_methods,                                 		// tp_methods
  0,                                       		// tp_members
  0,                                       		// tp_getset
  0,                                       		// tp_base
  0,                                       		// tp_dict
  0,                                       		// tp_descr_get
  0,                                       		// tp_descr_set
  0,                                       		// tp_dictoffset
  0,                                       		// tp_init
  0,                                       		// tp_alloc
  tp_new,                                  		// tp_new
  0,                                       		// tp_free
  0,                                       		// tp_is_gc
  0,                                       		// tp_bases
  0,                                       		// tp_mro
  0,                                       		// tp_cache
  0,                                       		// tp_subclasses
  0,                                       		// tp_weaklist
  0,                                       		// tp_del
  0,                                       		// tp_version_tag
};
