[gnome-software/wip/hughsie/flatpak-profile] Don't refresh flatpak repos if there are no permissions

[Richard Hughes <rhughes src gnome org>]

commit 1a69410f08ef7aba5cff2683a5bfac4eacdb0c13
Author: Richard Hughes <richard hughsie com>
Date:   Tue Nov 1 15:12:50 2016 +0000

    Don't refresh flatpak repos if there are no permissions

 src/plugins/gs-plugin-flatpak-system.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-plugin-flatpak-system.c b/src/plugins/gs-plugin-flatpak-system.c
index e12086c..c2e3460 100644
--- a/src/plugins/gs-plugin-flatpak-system.c
+++ b/src/plugins/gs-plugin-flatpak-system.c
@@ -43,9 +43,25 @@ void
 gs_plugin_initialize (GsPlugin *plugin)
 {
        GsPluginData *priv = gs_plugin_alloc_data (plugin, sizeof(GsPluginData));
+       const gchar *action_id = "org.freedesktop.Flatpak.appstream-update";
+       g_autoptr(GPermission) permission = NULL;
+
        priv->flatpak = gs_flatpak_new (plugin, AS_APP_SCOPE_SYSTEM);
        priv->settings = g_settings_new ("org.gnome.software");
 
+       /* if we can't update the AppStream database system-wide don't even
+        * pull the data as we can't do anything with it */
+       permission = gs_utils_get_permission (action_id);
+       if (permission != NULL) {
+               gboolean ret = g_permission_get_allowed (permission) ||
+                               g_permission_get_can_acquire (permission);
+               if (!ret) {
+                       g_debug ("no way to update using %s", action_id);
+                       gs_plugin_set_enabled (plugin, FALSE);
+                       return;
+               }
+       }
+
        /* set plugin flags */
        gs_plugin_add_flags (plugin, GS_PLUGIN_FLAGS_GLOBAL_CACHE);