// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Mobius Forensic Toolkit
// Copyright (C) 2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020 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/>.
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief C++ API module wrapper
//! \author Eduardo Aguiar
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#include <pymobius.h>
#include "filesystem.h"
#include "filesystem_ext2.h"
#include "filesystem_hfs.h"
#include "filesystem_iso.h"
#include "filesystem_ntfs.h"
#include "filesystem_vfat.h"
#include "entry.h"
#include "io/folder.h"
#include "api_metadata.h"

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief create filesystem from C++ object
//! \param obj C++ registry object
//! \return new filesystem object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyObject *
PyMobius_Filesystem_Filesystem_from_cpp (mobius::filesystem::filesystem fs)
{
  PyObject *ret = nullptr;

  if (fs)
    {
      if (fs.get_type () == "ext2")
        {
          ret = _PyObject_New (&filesystem_filesystem_ext2_t);
          ((filesystem_filesystem_ext2_o *) ret)->obj = new mobius::filesystem::filesystem_ext2 (fs);
        }

      else if (fs.get_type () == "hfs")
        {
          ret = _PyObject_New (&filesystem_filesystem_hfs_t);
          ((filesystem_filesystem_hfs_o *) ret)->obj = new mobius::filesystem::filesystem_hfs (fs);
        }

      else if (fs.get_type () == "iso")
        {
          ret = _PyObject_New (&filesystem_filesystem_iso_t);
          ((filesystem_filesystem_iso_o *) ret)->obj = new mobius::filesystem::filesystem_iso (fs);
        }

      else if (fs.get_type () == "ntfs")
        {
          ret = _PyObject_New (&filesystem_filesystem_ntfs_t);
          ((filesystem_filesystem_ntfs_o *) ret)->obj = new mobius::filesystem::filesystem_ntfs (fs);
        }

      else if (fs.get_type () == "vfat")
        {
          ret = _PyObject_New (&filesystem_filesystem_vfat_t);
          ((filesystem_filesystem_vfat_o *) ret)->obj = new mobius::filesystem::filesystem_vfat (fs);
        }

      else
        PyErr_SetString (PyExc_TypeError, "Unknown filesystem type");
    }

  else
    {
      Py_INCREF (Py_None);
      ret = Py_None;
    }

  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: tp_new (default constructor)
//! \param type type object
//! \param args argument list
//! \param kwds keywords dict
//! \return new api.filesystem object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_new (PyTypeObject *type, PyObject *, PyObject *)
{
  filesystem_filesystem_o *self = (filesystem_filesystem_o *) type->tp_alloc (type, 0);

  if (self)
    self->obj = new mobius::filesystem::filesystem ();

  return (PyObject *) self;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: tp_dealloc
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static void
tp_dealloc (filesystem_filesystem_o *self)
{
  delete self->obj;
  self->ob_type->tp_free ((PyObject*) self);
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: type getter
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_getter_type (filesystem_filesystem_o *self)
{
  return PyString2_from_std_string (self->obj->get_type ());
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: offset getter
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_getter_offset (filesystem_filesystem_o *self)
{
  return mobius::py::pylong_from_std_uint64_t (self->obj->get_offset ());
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: size getter
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_getter_size (filesystem_filesystem_o *self)
{
  return mobius::py::pylong_from_std_uint64_t (self->obj->get_size ());
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: name getter
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_getter_name (filesystem_filesystem_o *self)
{
  return PyString2_from_std_string (self->obj->get_name ());
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: fs_type getter
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_getter_fs_type (filesystem_filesystem_o *self)
{
  return PyString2_from_std_string (self->obj->get_fs_type ());
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: getters and setters structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyGetSetDef tp_getset[] =
{
  {
    (char *) "type",
    (getter) tp_getter_type,
    (setter) 0,
    (char *) "type", NULL
  },
  {
    (char *) "offset",
    (getter) tp_getter_offset,
    (setter) 0,
    (char *) "offset in bytes", NULL
  },
  {
    (char *) "size",
    (getter) tp_getter_size,
    (setter) 0,
    (char *) "filesystem size in bytes", NULL
  },
  {
    (char *) "name",
    (getter) tp_getter_name,
    (setter) 0,
    (char *) "filesystem name", NULL
  },
  {
    (char *) "fs_type",
    (getter) tp_getter_fs_type,
    (setter) 0,
    (char *) "filesystem type", NULL
  },
  {NULL, NULL, NULL, NULL, NULL} // sentinel
};

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: get_metadata
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_metadata (filesystem_filesystem_o *self, PyObject *)
{
  return PyList_FromMetadata (self->obj->get_metadata ());
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: get_root_entry
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_root_folder (filesystem_filesystem_o *self, PyObject *)
{
  PyObject *ret = nullptr;
  
  try
    {
      ret = PyMobius_IO_Folder_from_cpp (self->obj->get_root_folder ());
    }
  catch (const std::exception& e)
    { 
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  return ret;	
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: get_root_entry
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get_root_entry (filesystem_filesystem_o *self, PyObject *)
{
  filesystem_entry_o *ret = (filesystem_entry_o *) _PyObject_New (&filesystem_entry_t);
  if (ret)
    ret->obj = new mobius::filesystem::entry (self->obj->get_root_entry ());

  return (PyObject *) ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: methods structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyMethodDef tp_methods[] =
{
  {
    (char *) "get_metadata",
    (PyCFunction) tp_f_get_metadata,
    METH_VARARGS,
    "get metadata"
  },
  {
    (char *) "get_root_folder",
    (PyCFunction) tp_f_get_root_folder,
    METH_VARARGS,
    "get root folder"
  },
  {
    (char *) "get_root_entry",
    (PyCFunction) tp_f_get_root_entry,
    METH_VARARGS,
    "get root entry"
  },
  {NULL, NULL, 0, NULL} // sentinel
};

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief filesystem: type structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyTypeObject filesystem_filesystem_t =
{
  PyVarObject_HEAD_INIT (NULL, 0)
  "mobius.filesystem.filesystem",          		// tp_name
  sizeof (filesystem_filesystem_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
  "filesystem 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
  tp_getset,                               		// 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
};
