src/pxdg.c

   1 /*
   2  * Copyright (C) 2010-2014 jeanfi@gmail.com
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <sys/types.h>
  23 #include <sys/stat.h>
  24 #include <unistd.h>
  25
  26 #include <glib.h>
  27
  28 #include <pio.h>
  29 #include <plog.h>
  30
  31 static const char *KEY_GNOME_AUTOSTART = "X-GNOME-Autostart-enabled";
  32
  33 static char *get_user_autostart_dir()
  34 {
  35         const char *xdg_cfg_dir;
  36
  37         xdg_cfg_dir = g_get_user_config_dir();
  38
  39         log_fct("g_user_config_dir(): %s", xdg_cfg_dir);
  40
  41         return path_append(xdg_cfg_dir, "autostart");
  42 }
  43
  44 static char *get_user_desktop_file()
  45 {
  46         char *dir, *path;
  47
  48         dir = get_user_autostart_dir();
  49         path = path_append(dir, "psensor.desktop");
  50
  51         free(dir);
  52
  53         return path;
  54 }
  55
  56 static const char *get_desktop_file()
  57 {
  58         return DATADIR"/applications/psensor.desktop";
  59 }
  60
  61 static int is_file_exists(const char *path)
  62 {
  63         struct stat st;
  64
  65         return stat(path, &st) == 0;
  66 }
  67
  68 static GKeyFile *get_key_file(const char *path)
  69 {
  70         GKeyFile *kfile;
  71         int ret;
  72
  73         kfile = g_key_file_new();
  74         ret = g_key_file_load_from_file(kfile,
  75                                         path,
  76                                         G_KEY_FILE_KEEP_COMMENTS
  77                                         | G_KEY_FILE_KEEP_TRANSLATIONS,
  78                                         NULL);
  79
  80         if (ret) {
  81                 return kfile;
  82         } else {
  83                 log_err("Failed to parse: %s", path);
  84
  85                 g_key_file_free(kfile);
  86                 return NULL;
  87         }
  88 }
  89
  90 static int is_user_desktop_autostarted(GKeyFile *f)
  91 {
  92         return (!g_key_file_has_key(f,
  93                                     G_KEY_FILE_DESKTOP_GROUP,
  94                                     KEY_GNOME_AUTOSTART,
  95                                     NULL))
  96                 || g_key_file_get_boolean(f,
  97                                           G_KEY_FILE_DESKTOP_GROUP,
  98                                           KEY_GNOME_AUTOSTART,
  99                                           NULL);
 100 }
 101
 102 int pxdg_is_autostarted()
 103 {
 104         char *user_desktop;
 105         unsigned int ret;
 106         GKeyFile *kfile;
 107
 108         log_fct_enter();
 109
 110         user_desktop = get_user_desktop_file();
 111
 112         log_fct("user desktop file: %s", user_desktop);
 113
 114         ret = is_file_exists(user_desktop);
 115
 116         if (!ret) {
 117                 log_fct("user desktop file does not exist.");
 118         } else {
 119                 log_fct("user desktop file exist.");
 120                 if (ret) {
 121                         kfile = get_key_file(user_desktop);
 122                         if (kfile)
 123                                 ret = is_user_desktop_autostarted(kfile);
 124                         else
 125                                 ret = -1;
 126                         g_key_file_free(kfile);
 127                 }
 128         }
 129
 130         free(user_desktop);
 131
 132         log_fct_exit();
 133
 134         return ret;
 135 }
 136
 137 static void enable_gnome_autostart(const char *path)
 138 {
 139         GKeyFile *f;
 140         char *data;
 141
 142         f = get_key_file(path);
 143         if (f) {
 144                 if (g_key_file_has_key(f,
 145                                        G_KEY_FILE_DESKTOP_GROUP,
 146                                        KEY_GNOME_AUTOSTART,
 147                                        NULL))
 148                         g_key_file_set_boolean(f,
 149                                                G_KEY_FILE_DESKTOP_GROUP,
 150                                                KEY_GNOME_AUTOSTART,
 151                                                TRUE);
 152                 data = g_key_file_to_data(f, NULL, NULL);
 153                 g_file_set_contents(path, data, -1, NULL);
 154
 155                 g_key_file_free(f);
 156         } else {
 157                 log_err("Fail to enable %s", KEY_GNOME_AUTOSTART);
 158         }
 159 }
 160
 161 void pxdg_set_autostart(unsigned int enable)
 162 {
 163         char *user_desktop, *dir;
 164
 165         log_fct_enter();
 166
 167         user_desktop = get_user_desktop_file();
 168
 169         log_fct("user desktop file: %s", user_desktop);
 170
 171         log_fct("desktop file: %s", get_desktop_file());
 172
 173         if (enable) {
 174                 if (!is_file_exists(user_desktop)) {
 175                         dir = get_user_autostart_dir();
 176                         mkdirs(dir, 0700);
 177                         free(dir);
 178                         file_copy(get_desktop_file(), user_desktop);
 179                 }
 180                 enable_gnome_autostart(user_desktop);
 181         } else {
 182                 /* because X-GNOME-Autostart-enabled does not turn off
 183                  * autostart on all Desktop Envs. */
 184                 remove(user_desktop);
 185         }
 186
 187         log_fct_exit();
 188
 189         free(user_desktop);
 190 }