[gnome-software/gnome-3-20] Support unlocking fwupd devices

[Richard Hughes <rhughes src gnome org>]

commit e769d4d39b87e10c865b30fdfad39f624da1b132
Author: Richard Hughes <richard hughsie com>
Date:   Tue Mar 29 20:26:56 2016 +0100

    Support unlocking fwupd devices

 src/plugins/gs-plugin-fwupd.c |   49 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 49 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-plugin-fwupd.c b/src/plugins/gs-plugin-fwupd.c
index cb827a4..a2bfd9a 100644
--- a/src/plugins/gs-plugin-fwupd.c
+++ b/src/plugins/gs-plugin-fwupd.c
@@ -972,6 +972,38 @@ gs_plugin_app_install (GsPlugin *plugin,
 }
 
 /**
+ * gs_plugin_fwupd_unlock:
+ */
+static gboolean
+gs_plugin_fwupd_unlock (GsPlugin *plugin,
+                       const gchar *device_id,
+                       GCancellable *cancellable,
+                       GError **error)
+{
+       g_autoptr(GVariant) val = NULL;
+
+       /* set up plugin */
+       if (plugin->priv->proxy == NULL) {
+               if (!gs_plugin_startup (plugin, cancellable, error))
+                       return FALSE;
+       }
+       if (plugin->priv->proxy == NULL)
+               return TRUE;
+
+       /* unlock device */
+       val = g_dbus_proxy_call_sync (plugin->priv->proxy,
+                                     "Unlock",
+                                     g_variant_new ("(s)", device_id),
+                                     G_DBUS_CALL_FLAGS_NONE,
+                                     -1,
+                                     NULL,
+                                     error);
+       if (val == NULL)
+               return FALSE;
+       return TRUE;
+}
+
+/**
  * gs_plugin_app_update:
  *
  * This is only called when updating device firmware live.
@@ -982,6 +1014,23 @@ gs_plugin_app_update (GsPlugin *plugin,
                      GCancellable *cancellable,
                      GError **error)
 {
+       /* locked devices need unlocking, rather than installing */
+       if (gs_app_get_metadata_item (app, "fwupd::IsLocked") != NULL) {
+               const gchar *device_id;
+               device_id = gs_app_get_metadata_item (app, "fwupd::DeviceID");
+               if (device_id == NULL) {
+                       g_set_error_literal (error,
+                                            GS_PLUGIN_ERROR,
+                                            GS_PLUGIN_ERROR_FAILED,
+                                            "not enough data for fwupd unlock");
+                       return FALSE;
+               }
+               return gs_plugin_fwupd_unlock (plugin,
+                                              device_id,
+                                              cancellable,
+                                              error);
+       }
+
        return gs_plugin_fwupd_install (plugin, app, cancellable, error);
 }