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nautilus-actions-test.c

/*
 * Nautilus Actions
 *
 * Copyright (C) 2005 The GNOME Foundation
 * Copyright (C) 2006, 2007, 2008 Frederic Ruaudel and others (see AUTHORS)
 * Copyright (C) 2009 Pierre Wieser and others (see AUTHORS)
 *
 * 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 of
 * the License, 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 Library; see the file COPYING.  If not,
 * write to the Free Software Foundation, Inc., 59 Temple Place,
 * Suite 330, Boston, MA 02111-1307, USA.
 *
 * Authors:
 *   Frederic Ruaudel <grumz@grumz.net>
 *   Rodrigo Moya <rodrigo@gnome-db.org>
 *   Pierre Wieser <pwieser@trychlos.org>
 *   ... and many others (see AUTHORS)
 */

#include <libnautilus-extension/nautilus-file-info.h>
#include <string.h>

#include "nautilus-actions-test.h"

static int nautilus_actions_test_check_scheme (GSList* schemes2test, NautilusFileInfo* file)
{
      int retv = 0;
      GSList* iter;
      gboolean found = FALSE;

      iter = schemes2test;
      while (iter && !found)
      {
            gchar* scheme = nautilus_file_info_get_uri_scheme (file);

            if (g_ascii_strncasecmp (scheme, (gchar*)iter->data, strlen ((gchar*)iter->data)) == 0)
            {
                  found = TRUE;
                  retv = 1;
            }

            g_free (scheme);
            iter = iter->next;
      }

      return retv;
}

gboolean nautilus_actions_test_validate (NautilusActionsConfigActionProfile *action_profile, GList* files)
{
      gboolean retv = FALSE;
      gboolean test_multiple_file = FALSE;
      gboolean test_file_type = FALSE;
      gboolean test_scheme = FALSE;
      gboolean test_basename = FALSE;
      gboolean test_mimetype = FALSE;
      GList* glob_patterns = NULL;
      GList* glob_mime_patterns = NULL;
      GSList* iter;
      GList* iter1;
      GList* iter2;
      guint dir_count = 0;
      guint file_count = 0;
      guint total_count = 0;
      guint scheme_ok_count = 0;
      guint glob_ok_count = 0;
      guint mime_glob_ok_count = 0;
      gboolean basename_match_ok = FALSE;
      gboolean mimetype_match_ok = FALSE;

      if (action_profile->basenames && action_profile->basenames->next != NULL &&
                  g_ascii_strcasecmp ((gchar*)(action_profile->basenames->data), "*") == 0)
      {
            /* if the only pattern is '*' then all files will match, so it
             * is not necessary to make the test for each of them
             */
            test_basename = TRUE;
      }
      else
      {
            for (iter = action_profile->basenames; iter; iter = iter->next)
            {
                  gchar* tmp_pattern = (gchar*)iter->data;
                  if (!action_profile->match_case)
                  {
                        /* --> if case-insensitive asked, lower all the string
                         * since the pattern matching function don't manage it
                         * itself.
                         */
                        tmp_pattern = g_ascii_strdown ((gchar*)iter->data, strlen ((gchar*)iter->data));
                  }

                  glob_patterns = g_list_append (glob_patterns, g_pattern_spec_new (tmp_pattern));

                  if (!action_profile->match_case)
                  {
                        g_free (tmp_pattern);
                  }
            }
      }

      if (action_profile->mimetypes && action_profile->mimetypes->next != NULL &&
                  (g_ascii_strcasecmp ((gchar*)(action_profile->mimetypes->data), "*") == 0 ||
                   g_ascii_strcasecmp ((gchar*)(action_profile->mimetypes->data), "*/*") == 0))
      {
            /* if the only pattern is '*' or * / * then all mimetypes will
             * match, so it is not necessary to make the test for each of them
             */
            test_mimetype = TRUE;
      }
      else
      {
            for (iter = action_profile->mimetypes; iter; iter = iter->next)
            {
                  glob_mime_patterns = g_list_append (glob_mime_patterns, g_pattern_spec_new ((gchar*)iter->data));
            }
      }

      for (iter1 = files; iter1; iter1 = iter1->next)
      {
            gchar* tmp_filename = nautilus_file_info_get_name ((NautilusFileInfo *)iter1->data);

            if (tmp_filename)
            {
                  gchar* tmp_mimetype = nautilus_file_info_get_mime_type ((NautilusFileInfo *)iter1->data);

                  if (!action_profile->match_case)
                  {
                        /* --> if case-insensitive asked, lower all the string
                         * since the pattern matching function don't manage it
                         * itself.
                         */
                        gchar* tmp_filename2 = g_ascii_strdown (tmp_filename, strlen (tmp_filename));
                        g_free (tmp_filename);
                        tmp_filename = tmp_filename2;
                  }

                  /* --> for the moment we deal with all mimetypes case-insensitively */
                  gchar* tmp_mimetype2 = g_ascii_strdown (tmp_mimetype, strlen (tmp_mimetype));
                  g_free (tmp_mimetype);
                  tmp_mimetype = tmp_mimetype2;

                  if (nautilus_file_info_is_directory ((NautilusFileInfo *)iter1->data))
                  {
                        dir_count++;
                  }
                  else
                  {
                        file_count++;
                  }

                  scheme_ok_count += nautilus_actions_test_check_scheme (action_profile->schemes, (NautilusFileInfo*)iter1->data);

                  if (!test_basename) /* if it is already ok, skip the test to improve performance */
                  {
                        basename_match_ok = FALSE;
                        iter2 = glob_patterns;
                        while (iter2 && !basename_match_ok)
                        {
                              if (g_pattern_match_string ((GPatternSpec*)iter2->data, tmp_filename))
                              {
                                    basename_match_ok = TRUE;
                              }
                              iter2 = iter2->next;
                        }

                        if (basename_match_ok)
                        {
                              glob_ok_count++;
                        }
                  }

                  if (!test_mimetype) /* if it is already ok, skip the test to improve performance */
                  {
                        mimetype_match_ok = FALSE;
                        iter2 = glob_mime_patterns;
                        while (iter2 && !mimetype_match_ok)
                        {
                              if (g_pattern_match_string ((GPatternSpec*)iter2->data, tmp_mimetype))
                              {
                                    mimetype_match_ok = TRUE;
                              }
                              iter2 = iter2->next;
                        }

                        if (mimetype_match_ok)
                        {
                              mime_glob_ok_count++;
                        }
                  }

                  g_free (tmp_mimetype);
                  g_free (tmp_filename);

            }

            total_count++;
      }

      if ((files != NULL) && (files->next == NULL) && (!action_profile->accept_multiple_files))
      {
            test_multiple_file = TRUE;
      }
      else if (action_profile->accept_multiple_files)
      {
            test_multiple_file = TRUE;
      }

      if (action_profile->is_dir && action_profile->is_file)
      {
            if (dir_count > 0 || file_count > 0)
            {
                  test_file_type = TRUE;
            }
      }
      else if (action_profile->is_dir && !action_profile->is_file)
      {
            if (file_count == 0)
            {
                  test_file_type = TRUE;
            }
      }
      else if (!action_profile->is_dir && action_profile->is_file)
      {
            if (dir_count == 0)
            {
                  test_file_type = TRUE;
            }
      }

      if (scheme_ok_count == total_count)
      {
            test_scheme = TRUE;
      }


      if (!test_basename) /* if not already tested */
      {
            if (glob_ok_count == total_count)
            {
                  test_basename = TRUE;
            }
      }

      if (!test_mimetype) /* if not already tested */
      {
            if (mime_glob_ok_count == total_count)
            {
                  test_mimetype = TRUE;
            }
      }

      if (test_basename && test_mimetype && test_file_type && test_scheme && test_multiple_file)
      {
            retv = TRUE;
      }

      g_list_foreach (glob_patterns, (GFunc) g_pattern_spec_free, NULL);
      g_list_free (glob_patterns);
      g_list_foreach (glob_mime_patterns, (GFunc) g_pattern_spec_free, NULL);
      g_list_free (glob_mime_patterns);

      return retv;
}

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