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secret-service: Obtain the default D-Bus name from portal

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This commit is contained in:
Daiki Ueno 2018-09-17 16:58:17 +02:00
parent 5ce2540785
commit 650a4ab842
1 changed files with 137 additions and 0 deletions
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137
libsecret/secret-service.c
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@ -744,12 +744,149 @@ secret_service_async_initable_iface (GAsyncInitableIface *iface)
iface->init_finish = secret_service_async_initable_init_finish;
}
typedef struct {
GDBusConnection *connection;
gchar *handle;
guint response_id;
gchar *name;
GMainLoop *loop;
} CallbackData;
static void
free_callback_data (CallbackData *cbdata)
{
if (cbdata->connection)
g_object_unref (cbdata->connection);
g_free (cbdata->handle);
g_free (cbdata->name);
if (cbdata->loop)
g_main_loop_unref (cbdata->loop);
}
static void
secrets_response (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
CallbackData *cbdata = user_data;
guint32 response;
GVariant *options;
g_variant_get (parameters, "(u@a{sv})", &response, &options);
if (response == 0) {
const char *name = NULL;
if (!g_variant_lookup (options, "name", "&s", &name)) {
g_debug ("couldn't extract name from response");
} else {
cbdata->name = g_strdup (name);
}
}
}
static const gchar *
get_default_bus_name_from_portal (void)
{
CallbackData *cbdata;
GVariantBuilder opt_builder;
GVariant *ret;
gchar *token;
gchar *sender;
gchar *handle;
gchar *name;
GError *error = NULL;
gint i;
cbdata = g_new (CallbackData, 1);
cbdata->connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
if (cbdata->connection == NULL) {
g_debug ("couldn't connect to session bus: %s", error->message);
g_error_free (error);
return NULL;
}
token = g_strdup_printf ("app%d", g_random_int_range (0, G_MAXINT));
sender = g_strdup (g_dbus_connection_get_unique_name (cbdata->connection) + 1);
for (i = 0; sender[i]; i++)
if (sender[i] == '.')
sender[i] = '_';
cbdata->loop = g_main_loop_new (NULL, FALSE);
cbdata->handle = g_strdup_printf ("/org/fredesktop/portal/desktop/request/%s/%s", sender, token);
g_free (sender);
cbdata->response_id =
g_dbus_connection_signal_subscribe (cbdata->connection,
"org.freedesktop.portal.Desktop",
"org.freedesktop.portal.Request",
"Response",
cbdata->handle,
NULL,
G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
secrets_response,
cbdata, NULL);
g_variant_builder_init (&opt_builder, G_VARIANT_TYPE ("a{sv}"));
g_variant_builder_add (&opt_builder, "{sv}", "handle_token", g_variant_new_take_string (token));
ret = g_dbus_connection_call_sync (cbdata->connection,
"org.freedesktop.portal.Desktop",
"/org/freedesktop/portal/desktop",
"org.freedesktop.portal.Secrets",
"GetService",
g_variant_new ("(sa{sv})", "", &opt_builder),
G_VARIANT_TYPE ("(o)"),
G_DBUS_CALL_FLAGS_NONE,
G_MAXINT,
NULL,
&error);
if (!ret) {
g_debug ("couldn't talk to Secrets portal: %s", error->message);
free_callback_data (cbdata);
return NULL;
}
g_variant_get (ret, "(&o)", &handle);
if (strcmp (cbdata->handle, handle) != 0) {
g_free (cbdata->handle);
cbdata->handle = g_strdup (handle);
g_dbus_connection_signal_unsubscribe (cbdata->connection, cbdata->response_id);
cbdata->response_id =
g_dbus_connection_signal_subscribe (cbdata->connection,
"org.freedesktop.portal.Desktop",
"org.freedesktop.portal.Request",
"Response",
handle,
NULL,
G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
secrets_response,
cbdata, NULL);
}
g_main_loop_run (cbdata->loop);
name = g_steal_pointer (&cbdata->name);
free_callback_data (cbdata);
return name;
}
static const gchar *
get_default_bus_name (void)
{
const gchar *bus_name;
bus_name = g_getenv ("SECRET_SERVICE_BUS_NAME");
if (bus_name == NULL)
bus_name = get_default_bus_name_from_portal ();
if (bus_name == NULL)
bus_name = SECRET_SERVICE_BUS_NAME;