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4b3183435b
There is no guarantee that this function would not be called concurrently. Particularly since flatpak_info_read was set to TRUE before /.flatpak-info is actually read from disk, there is a potential race where a second thread would return default values for the various flags set from that file. Fixes #2159
102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright 2016 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gportalsupport.h"
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static gboolean use_portal;
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static gboolean network_available;
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static gboolean dconf_access;
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static void
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read_flatpak_info (void)
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{
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static gsize flatpak_info_read = 0;
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const gchar *path = "/.flatpak-info";
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if (!g_once_init_enter (&flatpak_info_read))
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return;
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if (g_file_test (path, G_FILE_TEST_EXISTS))
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{
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GKeyFile *keyfile;
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use_portal = TRUE;
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network_available = FALSE;
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dconf_access = FALSE;
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keyfile = g_key_file_new ();
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if (g_key_file_load_from_file (keyfile, path, G_KEY_FILE_NONE, NULL))
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{
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char **shared = NULL;
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char *dconf_policy = NULL;
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shared = g_key_file_get_string_list (keyfile, "Context", "shared", NULL, NULL);
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if (shared)
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{
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network_available = g_strv_contains ((const char * const *)shared, "network");
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g_strfreev (shared);
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}
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dconf_policy = g_key_file_get_string (keyfile, "Session Bus Policy", "ca.desrt.dconf", NULL);
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if (dconf_policy)
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{
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if (strcmp (dconf_policy, "talk") == 0)
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dconf_access = TRUE;
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g_free (dconf_policy);
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}
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}
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g_key_file_unref (keyfile);
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}
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else
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{
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const char *var;
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var = g_getenv ("GTK_USE_PORTAL");
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if (var && var[0] == '1')
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use_portal = TRUE;
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network_available = TRUE;
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dconf_access = TRUE;
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}
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g_once_init_leave (&flatpak_info_read, 1);
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}
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gboolean
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glib_should_use_portal (void)
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{
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read_flatpak_info ();
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return use_portal;
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}
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gboolean
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glib_network_available_in_sandbox (void)
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{
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read_flatpak_info ();
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return network_available;
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}
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gboolean
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glib_has_dconf_access_in_sandbox (void)
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{
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read_flatpak_info ();
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return dconf_access;
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}
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