[gnome-keyring] login: Use password from login keyring once for the same interaction

[Daiki Ueno <dueno src gnome org>]

commit a0526d18152028e967b7baa5bc039c38a487672a
Author: Daiki Ueno <dueno src gnome org>
Date:   Sat Mar 24 15:28:00 2018 +0100

    login: Use password from login keyring once for the same interaction
    
    https://bugzilla.gnome.org/show_bug.cgi?id=794631

 daemon/login/gkd-login-interaction.c |   20 +++++++++++++-------
 1 files changed, 13 insertions(+), 7 deletions(-)
---
diff --git a/daemon/login/gkd-login-interaction.c b/daemon/login/gkd-login-interaction.c
index 77701be..cf2e815 100644
--- a/daemon/login/gkd-login-interaction.c
+++ b/daemon/login/gkd-login-interaction.c
@@ -53,6 +53,7 @@ struct _GkdLoginInteraction
        GHashTable *lookup_fields;
        GHashTable *store_fields;
        gboolean login_available;
+       gboolean login_checked;
 };
 
 G_DEFINE_TYPE (GkdLoginInteraction, gkd_login_interaction, G_TYPE_TLS_INTERACTION);
@@ -137,13 +138,18 @@ gkd_login_interaction_ask_password_async (GTlsInteraction *interaction,
 
        /* If the login keyring is available, look for the password there */
        if (self->login_available) {
-               gchar *value = gkd_login_lookup_passwordv (self->session, self->lookup_fields);
-               if (value) {
-                       g_tls_password_set_value_full (G_TLS_PASSWORD (login_password), (guchar *)value, 
strlen (value), (GDestroyNotify)egg_secure_free);
-                       g_object_unref (login_password);
-                       g_task_return_int (task, G_TLS_INTERACTION_HANDLED);
-                       g_object_unref (task);
-                       return;
+               if (self->login_checked)
+                       g_message ("already attempted to use password from login keyring");
+               else {
+                       gchar *value = gkd_login_lookup_passwordv (self->session, self->lookup_fields);
+                       self->login_checked = TRUE;
+                       if (value) {
+                               g_tls_password_set_value_full (G_TLS_PASSWORD (login_password), (guchar 
*)value, strlen (value), (GDestroyNotify)egg_secure_free);
+                               g_object_unref (login_password);
+                               g_task_return_int (task, G_TLS_INTERACTION_HANDLED);
+                               g_object_unref (task);
+                               return;
+                       }
                }
        }