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fp-context: Use an env to define a whitelist of drivers to enable

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This avoids that we pick unwanted drivers when running the tests in a
machine that has some supported device attached.
This commit is contained in:
Marco Trevisan (Treviño)
2019-12-13 20:34:08 +01:00
parent 09576e5209
commit 43a8c909bf
2 changed files with 52 additions and 1 deletions
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45
libfprint/fp-context.c
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@@ -57,6 +57,35 @@ enum {
};
static guint signals[LAST_SIGNAL] = { 0 };
static const char *
get_drivers_whitelist_env (void)
{
return g_getenv ("FP_DRIVERS_WHITELIST");
}
static gboolean
is_driver_allowed (const gchar *driver)
{
g_auto(GStrv) whitelisted_drivers = NULL;
const char *fp_drivers_whitelist_env;
int i;
g_return_val_if_fail (driver, TRUE);
fp_drivers_whitelist_env = get_drivers_whitelist_env ();
if (!fp_drivers_whitelist_env)
return TRUE;
whitelisted_drivers = g_strsplit (fp_drivers_whitelist_env, ":", -1);
for (i = 0; whitelisted_drivers[i]; ++i)
if (g_strcmp0 (driver, whitelisted_drivers[i]) == 0)
return TRUE;
return FALSE;
}
static void
async_device_init_done_cb (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
@@ -242,9 +271,25 @@ fp_context_init (FpContext *self)
{
g_autoptr(GError) error = NULL;
FpContextPrivate *priv = fp_context_get_instance_private (self);
guint i;
priv->drivers = fpi_get_driver_types ();
if (get_drivers_whitelist_env ())
{
for (i = 0; i < priv->drivers->len;)
{
GType driver = g_array_index (priv->drivers, GType, i);
g_autoptr(GTypeClass) type_class = g_type_class_ref (driver);
FpDeviceClass *cls = FP_DEVICE_CLASS (type_class);
if (!is_driver_allowed (cls->id))
g_array_remove_index (priv->drivers, i);
else
++i;
}
}
priv->devices = g_ptr_array_new_with_free_func (g_object_unref);
priv->cancellable = g_cancellable_new ();