/*
* fprintd example to enroll right index finger
* Copyright (C) 2008 Daniel Drake <dsd@gentoo.org>
* Copyright (C) 2020 Marco Trevisan <marco.trevisan@canonical.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define _GNU_SOURCE
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include "fprintd-dbus.h"
#define N_(x) x
#define TR(x) x
#include "fingerprint-strings.h"
static FprintDBusManager *manager = NULL;
static GDBusConnection *connection = NULL;
static char *finger_name = NULL;
static char **usernames = NULL;
static void
create_manager (void)
{
g_autoptr(GError) error = NULL;
connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (connection == NULL)
{
g_print ("Failed to connect to session bus: %s\n", error->message);
exit (1);
}
manager = fprint_dbus_manager_proxy_new_sync (connection,
G_DBUS_PROXY_FLAGS_NONE,
"net.reactivated.Fprint",
"/net/reactivated/Fprint/Manager",
NULL, &error);
if (manager == NULL)
{
g_print ("Failed to get Fprintd manager: %s\n", error->message);
exit (1);
}
}
static FprintDBusDevice *
open_device (const char *username)
{
g_autoptr(FprintDBusDevice) dev = NULL;
g_autoptr(GError) error = NULL;
g_autofree char *path = NULL;
if (!fprint_dbus_manager_call_get_default_device_sync (manager, &path,
NULL, &error))
{
g_print ("Impossible to enroll: %s\n", error->message);
exit (1);
}
g_print ("Using device %s\n", path);
dev = fprint_dbus_device_proxy_new_sync (connection,
G_DBUS_PROXY_FLAGS_NONE,
"net.reactivated.Fprint",
path, NULL, &error);
if (error)
{
g_print ("failed to connect to device: %s\n", error->message);
exit (1);
}
if (!fprint_dbus_device_call_claim_sync (dev, username, NULL, &error))
{
g_print ("failed to claim device: %s\n", error->message);
exit (1);
}
return g_steal_pointer (&dev);
}
static void
enroll_result (GObject *object, const char *result, gboolean done, void *user_data)
{
gboolean *enroll_completed = user_data;
g_print ("Enroll result: %s\n", result);
if (done != FALSE)
*enroll_completed = TRUE;
}
static void
proxy_signal_cb (GDBusProxy *proxy,
const gchar *sender_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
if (g_str_equal (signal_name, "EnrollStatus"))
{
const gchar *result;
gboolean done;
g_variant_get (parameters, "(&sb)", &result, &done);
enroll_result (G_OBJECT (proxy), result, done, user_data);
}
}
static void
do_enroll (FprintDBusDevice *dev)
{
g_autoptr(GError) error = NULL;
gboolean enroll_completed = FALSE;
gboolean found;
guint i;
g_signal_connect (dev, "g-signal", G_CALLBACK (proxy_signal_cb),
&enroll_completed);
found = FALSE;
for (i = 0; fingers[i].dbus_name != NULL; i++)
{
if (g_strcmp0 (fingers[i].dbus_name, finger_name) == 0)
{
found = TRUE;
break;
}
}
if (!found)
{
g_autoptr(GString) s = NULL;
s = g_string_new (NULL);
g_string_append_printf (s, "Invalid finger name '%s'. Name must be one of ", finger_name);
for (i = 0; fingers[i].dbus_name != NULL; i++)
{
g_string_append_printf (s, "%s", fingers[i].dbus_name);
if (fingers[i + 1].dbus_name != NULL)
g_string_append (s, ", ");
}
g_warning ("%s", s->str);
exit (1);
}
g_print ("Enrolling %s finger.\n", finger_name);
if (!fprint_dbus_device_call_enroll_start_sync (dev, finger_name, NULL,
&error))
{
g_print ("EnrollStart failed: %s\n", error->message);
exit (1);
}
while (!enroll_completed)
g_main_context_iteration (NULL, TRUE);
g_signal_handlers_disconnect_by_func (dev, proxy_signal_cb, &enroll_result);
if (!fprint_dbus_device_call_enroll_stop_sync (dev, NULL, &error))
{
g_print ("VerifyStop failed: %s\n", error->message);
exit (1);
}
}
static void
release_device (FprintDBusDevice *dev)
{
g_autoptr(GError) error = NULL;
if (!fprint_dbus_device_call_release_sync (dev, NULL, &error))
{
g_print ("ReleaseDevice failed: %s\n", error->message);
exit (1);
}
}
static const GOptionEntry entries[] = {
{ "finger", 'f', 0, G_OPTION_ARG_STRING, &finger_name, "Finger selected to verify (default is automatic)", NULL },
{ G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &usernames, NULL, "[username]" },
{ NULL }
};
int
main (int argc, char **argv)
{
g_autoptr(FprintDBusDevice) dev = NULL;
GOptionContext *context;
g_autoptr(GError) err = NULL;
setlocale (LC_ALL, "");
context = g_option_context_new ("Enroll a fingerprint");
g_option_context_add_main_entries (context, entries, NULL);
if (g_option_context_parse (context, &argc, &argv, &err) == FALSE)
{
g_print ("couldn't parse command-line options: %s\n", err->message);
return 1;
}
if (finger_name == NULL)
finger_name = g_strdup ("right-index-finger");
create_manager ();
dev = open_device (usernames ? usernames[0] : "");
do_enroll (dev);
release_device (dev);
g_free (finger_name);
g_strfreev (usernames);
return 0;
}