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/*
* Copyright 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
*
* Authors:
* Ted Gould <ted.gould@canonical.com>
*/
#include "helpers.h"
/* Check to make sure we have the sections and keys we want */
static gboolean
verify_keyfile (GKeyFile * inkeyfile, const gchar * desktop)
{
if (inkeyfile == NULL) return FALSE;
if (!g_key_file_has_group(inkeyfile, "Desktop Entry")) {
g_warning("Desktop file '%s' is missing the 'Desktop Entry' group", desktop);
return FALSE;
}
if (!g_key_file_has_key(inkeyfile, "Desktop Entry", "Exec", NULL)) {
g_warning("Desktop file '%s' is missing the 'Exec' key", desktop);
return FALSE;
}
return TRUE;
}
/* Try to find a desktop file in a particular data directory */
static GKeyFile *
try_dir (const char * dir, const gchar * desktop)
{
gchar * fullpath = g_build_filename(dir, "applications", desktop, NULL);
GKeyFile * keyfile = g_key_file_new();
/* NOTE: Leaving off the error here as we'll get a bunch of them,
so individuals aren't really useful */
gboolean loaded = g_key_file_load_from_file(keyfile, fullpath, G_KEY_FILE_NONE, NULL);
g_free(fullpath);
if (!loaded) {
g_key_file_free(keyfile);
return NULL;
}
if (!verify_keyfile(keyfile, desktop)) {
g_key_file_free(keyfile);
return NULL;
}
return keyfile;
}
/* Find the keyfile that we need for a particular AppID and return it.
Or NULL if we can't find it. */
GKeyFile *
keyfile_for_appid (const gchar * appid, gchar ** desktopfile)
{
gchar * desktop = g_strdup_printf("%s.desktop", appid);
const char * const * data_dirs = g_get_system_data_dirs();
GKeyFile * keyfile = NULL;
int i;
keyfile = try_dir(g_get_user_data_dir(), desktop);
if (keyfile != NULL && desktopfile != NULL && *desktopfile == NULL) {
*desktopfile = g_build_filename(g_get_user_data_dir(), "applications", desktop, NULL);
}
for (i = 0; data_dirs[i] != NULL && keyfile == NULL; i++) {
keyfile = try_dir(data_dirs[i], desktop);
if (keyfile != NULL && desktopfile != NULL && *desktopfile == NULL) {
*desktopfile = g_build_filename(data_dirs[i], "applications", desktop, NULL);
}
}
g_free(desktop);
return keyfile;
}
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