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/*
   GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 2009, 2010 Free Software Foundation, Inc.

   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, write to the
   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301 USA
*/

#include "libmu_py.h"

void
mu_py_script_init (int argc, char *argv[])
{
  if (!Py_IsInitialized ())
    Py_Initialize ();
  PySys_SetArgv (argc, argv);
}

void
mu_py_script_finish (void)
{
  Py_Finalize ();
}

static PyMethodDef nomethods[] = {
  { NULL, NULL }
};

int
mu_py_script_run (const char *python_filename, mu_py_script_data *data)
{
  FILE *fp;
  PyObject *py_module;

  if (!python_filename)
    return MU_ERR_OUT_PTR_NULL;

  fp = fopen (python_filename, "r");
  if (!fp)
    return errno;

  py_module = Py_InitModule (data->module_name, nomethods);
  if (!py_module)
    return MU_ERR_FAILURE;

  for (; data->attrs->name; data->attrs++)
    PyObject_SetAttrString (py_module, data->attrs->name, data->attrs->obj);

  if (PyRun_SimpleFile (fp, python_filename))
    return MU_ERR_FAILURE;

  fclose (fp);
  return 0;
}

int
mu_py_script_process_mailbox (int argc, char *argv[],
			      const char *python_filename,
			      const char *module_name,
			      mu_mailbox_t mbox)
{
  int status;
  PyMailbox *py_mbox;
  mu_py_dict dict[2];
  mu_py_script_data data[1];

  mu_py_script_init (argc, argv);

  py_mbox = PyMailbox_NEW ();
  py_mbox->mbox = mbox;
  Py_INCREF (py_mbox);

  dict[0].name = "mailbox";
  dict[0].obj  = (PyObject *)py_mbox;
  dict[1].name = NULL;

  data[0].module_name = module_name;
  data[0].attrs = dict;

  status = mu_py_script_run (python_filename, data);
  mu_py_script_finish ();
  return status;
}

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