gnome-control-center/panels/user-accounts/um-fingerprint-dialog.c
2016-10-17 11:45:03 +02:00

754 lines
27 KiB
C

/* gnome-about-me-fingerprint.h
* Copyright (C) 2008 Bastien Nocera <hadess@hadess.net>
*
* 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, 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <glib/gi18n.h>
#include <gio/gio.h>
#include <gtk/gtk.h>
#include "um-fingerprint-dialog.h"
#include "fingerprint-strings.h"
/* Retrieve a widget from the UI object */
#define WID(s) GTK_WIDGET (gtk_builder_get_object (dialog, s))
/* Translate fprintd strings */
#define TR(s) dgettext("fprintd", s)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
/* This must match the number of images on the 2nd page in the UI file */
#define MAX_ENROLL_STAGES 5
static GDBusProxy *manager = NULL;
static GDBusConnection *connection = NULL;
static gboolean is_disable = FALSE;
enum {
STATE_NONE,
STATE_CLAIMED,
STATE_ENROLLING
};
typedef struct {
GtkWidget *editable_button;
GtkWidget *ass;
GtkBuilder *dialog;
GDBusProxy *device;
gboolean is_swipe;
int num_enroll_stages;
int num_stages_done;
char *name;
const char *finger;
gint state;
} EnrollData;
static void
ensure_manager (void)
{
GError *error = NULL;
if (manager != NULL)
return;
connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (connection == NULL) {
g_warning ("Failed to connect to session bus: %s", error->message);
g_error_free (error);
return;
}
manager = g_dbus_proxy_new_sync (connection,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
"net.reactivated.Fprint",
"/net/reactivated/Fprint/Manager",
"net.reactivated.Fprint.Manager",
NULL,
&error);
if (manager == NULL) {
g_warning ("Failed to create fingerprint manager proxy: %s", error->message);
g_error_free (error);
}
}
static GDBusProxy *
get_first_device (void)
{
GDBusProxy *device;
GVariant *result;
char *device_str = NULL;
GError *error = NULL;
result = g_dbus_proxy_call_sync (manager,
"GetDefaultDevice",
g_variant_new ("()"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
NULL);
if (result == NULL)
return NULL;
if (!g_variant_is_of_type (result, G_VARIANT_TYPE ("(o)")))
g_warning ("net.reactivated.Fprint.Manager.GetDefaultDevice returns unknown result %s", g_variant_get_type_string (result));
else
g_variant_get (result, "(o)", &device_str);
g_variant_unref (result);
if (device_str == NULL)
return NULL;
device = g_dbus_proxy_new_sync (connection,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
"net.reactivated.Fprint",
device_str,
"net.reactivated.Fprint.Device",
NULL,
&error);
if (device == NULL) {
g_warning ("Failed to create fingerprint device proxy: %s", error->message);
g_error_free (error);
}
g_free (device_str);
return device;
}
static const char *
get_reason_for_error (const char *dbus_error)
{
if (g_str_equal (dbus_error, "net.reactivated.Fprint.Error.PermissionDenied"))
return N_("You are not allowed to access the device. Contact your system administrator.");
if (g_str_equal (dbus_error, "net.reactivated.Fprint.Error.AlreadyInUse"))
return N_("The device is already in use.");
if (g_str_equal (dbus_error, "net.reactivated.Fprint.Error.Internal"))
return N_("An internal error occurred.");
return NULL;
}
static GtkWidget *
get_error_dialog (const char *title,
const char *dbus_error,
GtkWindow *parent)
{
GtkWidget *error_dialog;
const char *reason;
if (dbus_error == NULL)
g_warning ("get_error_dialog called with reason == NULL");
error_dialog =
gtk_message_dialog_new (parent,
GTK_DIALOG_MODAL,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
"%s", title);
reason = get_reason_for_error (dbus_error);
gtk_message_dialog_format_secondary_text
(GTK_MESSAGE_DIALOG (error_dialog), "%s", reason ? _(reason) : _(dbus_error));
gtk_window_set_title (GTK_WINDOW (error_dialog), ""); /* as per HIG */
gtk_container_set_border_width (GTK_CONTAINER (error_dialog), 5);
gtk_dialog_set_default_response (GTK_DIALOG (error_dialog),
GTK_RESPONSE_OK);
gtk_window_set_modal (GTK_WINDOW (error_dialog), TRUE);
gtk_window_set_position (GTK_WINDOW (error_dialog), GTK_WIN_POS_CENTER_ON_PARENT);
return error_dialog;
}
gboolean
set_fingerprint_label (GtkWidget *button)
{
GDBusProxy *device;
GVariant *result;
GVariantIter *fingers;
GError *error = NULL;
ensure_manager ();
if (manager == NULL)
return FALSE;
device = get_first_device ();
if (device == NULL)
return FALSE;
result = g_dbus_proxy_call_sync (device, "ListEnrolledFingers", g_variant_new ("(s)", ""), G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
if (!result) {
if (!g_dbus_error_is_remote_error (error) ||
strcmp (g_dbus_error_get_remote_error(error), "net.reactivated.Fprint.Error.NoEnrolledPrints") != 0) {
g_object_unref (device);
return FALSE;
}
}
if (result && g_variant_is_of_type (result, G_VARIANT_TYPE ("(as)")))
g_variant_get (result, "(as)", &fingers);
else
fingers = NULL;
if (fingers == NULL || g_variant_iter_n_children (fingers) == 0) {
is_disable = FALSE;
gtk_button_set_label (GTK_BUTTON (button), _("Disabled"));
} else {
is_disable = TRUE;
gtk_button_set_label (GTK_BUTTON (button), _("Enabled"));
}
gtk_widget_set_halign (gtk_bin_get_child (GTK_BIN (button)), GTK_ALIGN_START);
if (result != NULL)
g_variant_unref (result);
if (fingers != NULL)
g_variant_iter_free (fingers);
g_object_unref (device);
return TRUE;
}
static void
delete_fingerprints (void)
{
GDBusProxy *device;
GVariant *result;
ensure_manager ();
if (manager == NULL)
return;
device = get_first_device ();
if (device == NULL)
return;
result = g_dbus_proxy_call_sync (device, "DeleteEnrolledFingers", g_variant_new ("(s)", ""), G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL);
if (result)
g_variant_unref (result);
g_object_unref (device);
}
static void
delete_fingerprints_question (GtkWindow *parent,
GtkWidget *editable_button,
ActUser *user)
{
GtkWidget *question;
GtkWidget *button;
question = gtk_message_dialog_new (parent,
GTK_DIALOG_MODAL,
GTK_MESSAGE_QUESTION,
GTK_BUTTONS_NONE,
_("Delete registered fingerprints?"));
gtk_dialog_add_button (GTK_DIALOG (question), _("_Cancel"), GTK_RESPONSE_CANCEL);
gtk_window_set_modal (GTK_WINDOW (question), TRUE);
button = gtk_button_new_with_mnemonic (_("_Delete Fingerprints"));
gtk_widget_set_can_default (button, TRUE);
gtk_widget_show (button);
gtk_dialog_add_action_widget (GTK_DIALOG (question), button, GTK_RESPONSE_OK);
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (question),
_("Do you want to delete your registered fingerprints so fingerprint login is disabled?"));
gtk_dialog_set_default_response (GTK_DIALOG (question), GTK_RESPONSE_OK);
if (gtk_dialog_run (GTK_DIALOG (question)) == GTK_RESPONSE_OK) {
delete_fingerprints ();
set_fingerprint_label (editable_button);
}
gtk_widget_destroy (question);
}
static gboolean
enroll_start (EnrollData *data, GError **error)
{
GVariant *result;
result = g_dbus_proxy_call_sync (data->device, "EnrollStart", g_variant_new ("(s)", data->finger), G_DBUS_CALL_FLAGS_NONE, -1, NULL, error);
if (result == NULL)
return FALSE;
g_variant_unref (result);
return TRUE;
}
static gboolean
enroll_stop (EnrollData *data, GError **error)
{
GVariant *result;
result = g_dbus_proxy_call_sync (data->device, "EnrollStop", g_variant_new ("()"), G_DBUS_CALL_FLAGS_NONE, -1, NULL, error);
if (result == NULL)
return FALSE;
g_variant_unref (result);
return TRUE;
}
static gboolean
claim (EnrollData *data, GError **error)
{
GVariant *result;
result = g_dbus_proxy_call_sync (data->device, "Claim", g_variant_new ("(s)", ""), G_DBUS_CALL_FLAGS_NONE, -1, NULL, error);
if (result == NULL)
return FALSE;
g_variant_unref (result);
return TRUE;
}
static gboolean
release (EnrollData *data, GError **error)
{
GVariant *result;
result = g_dbus_proxy_call_sync (data->device, "Release", g_variant_new ("()"), G_DBUS_CALL_FLAGS_NONE, -1, NULL, error);
if (result == NULL)
return FALSE;
g_variant_unref (result);
return TRUE;
}
static void
enroll_data_destroy (EnrollData *data)
{
switch (data->state) {
case STATE_ENROLLING:
enroll_stop (data, NULL);
/* fall-through */
case STATE_CLAIMED:
release (data, NULL);
/* fall-through */
case STATE_NONE:
g_free (data->name);
g_object_unref (data->device);
g_object_unref (data->dialog);
gtk_widget_destroy (data->ass);
g_free (data);
}
}
static const char *
selected_finger (GtkBuilder *dialog)
{
int index;
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (WID ("radiobutton1")))) {
gtk_widget_set_sensitive (WID ("finger_combobox"), FALSE);
return "right-index-finger";
}
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (WID ("radiobutton2")))) {
gtk_widget_set_sensitive (WID ("finger_combobox"), FALSE);
return "left-index-finger";
}
gtk_widget_set_sensitive (WID ("finger_combobox"), TRUE);
index = gtk_combo_box_get_active (GTK_COMBO_BOX (WID ("finger_combobox")));
switch (index) {
case 0:
return "left-thumb";
case 1:
return "left-middle-finger";
case 2:
return "left-ring-finger";
case 3:
return "left-little-finger";
case 4:
return "right-thumb";
case 5:
return "right-middle-finger";
case 6:
return "right-ring-finger";
case 7:
return "right-little-finger";
default:
g_assert_not_reached ();
}
return NULL;
}
static void
finger_radio_button_toggled (GtkToggleButton *button, EnrollData *data)
{
GtkBuilder *dialog = data->dialog;
char *msg;
data->finger = selected_finger (data->dialog);
msg = g_strdup_printf (TR(finger_str_to_msg (data->finger, data->is_swipe)), data->name);
gtk_label_set_text (GTK_LABEL (WID("enroll-label")), msg);
g_free (msg);
}
static void
finger_combobox_changed (GtkComboBox *combobox, EnrollData *data)
{
GtkBuilder *dialog = data->dialog;
char *msg;
data->finger = selected_finger (data->dialog);
msg = g_strdup_printf (TR(finger_str_to_msg (data->finger, data->is_swipe)), data->name);
gtk_label_set_text (GTK_LABEL (WID("enroll-label")), msg);
g_free (msg);
}
static void
assistant_cancelled (GtkAssistant *ass, EnrollData *data)
{
GtkWidget *editable_button = data->editable_button;
enroll_data_destroy (data);
set_fingerprint_label (editable_button);
}
static void
enroll_result (EnrollData *data, const char *result, gboolean done)
{
GtkBuilder *dialog = data->dialog;
char *msg;
if (g_str_equal (result, "enroll-completed") || g_str_equal (result, "enroll-stage-passed")) {
char *name, *path;
data->num_stages_done++;
name = g_strdup_printf ("image%d", data->num_stages_done);
path = g_strdup_printf ("/org/gnome/control-center/user-accounts/print_ok.png");
gtk_image_set_from_resource (GTK_IMAGE (WID (name)), path);
g_free (name);
g_free (path);
}
if (g_str_equal (result, "enroll-completed")) {
gtk_label_set_text (GTK_LABEL (WID ("status-label")), _("Done!"));
gtk_label_set_text (GTK_LABEL (WID("enroll-label")), "");
gtk_assistant_set_page_complete (GTK_ASSISTANT (data->ass), WID ("page2"), TRUE);
}
if (done != FALSE) {
enroll_stop (data, NULL);
data->state = STATE_CLAIMED;
if (g_str_equal (result, "enroll-completed") == FALSE) {
/* The enrollment failed, restart it */
enroll_start (data, NULL);
data->state = STATE_ENROLLING;
result = "enroll-retry-scan";
} else {
return;
}
}
msg = g_strdup_printf (TR(enroll_result_str_to_msg (result, data->is_swipe)), data->name);
gtk_label_set_text (GTK_LABEL (WID ("status-label")), msg);
g_free (msg);
}
static void
device_signal_cb (GDBusProxy *proxy, gchar *sender_name, gchar *signal_name, GVariant *parameters, EnrollData *data)
{
if (strcmp (signal_name, "EnrollStatus") == 0) {
if (g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sb)"))) {
gchar *result;
gboolean done;
g_variant_get (parameters, "(&sb)", &result, &done);
enroll_result (data, result, done);
}
}
}
static void
assistant_prepare (GtkAssistant *ass, GtkWidget *page, EnrollData *data)
{
const char *name;
name = g_object_get_data (G_OBJECT (page), "name");
if (name == NULL)
return;
if (g_str_equal (name, "enroll")) {
GError *error = NULL;
GtkBuilder *dialog = data->dialog;
char *path;
guint i;
GVariant *result;
gint num_enroll_stages;
if (!claim (data, &error)) {
GtkWidget *d;
char *msg;
/* translators:
* The variable is the name of the device, for example:
* "Could you not access "Digital Persona U.are.U 4000/4000B" device */
msg = g_strdup_printf (_("Could not access “%s” device"), data->name);
d = get_error_dialog (msg, error->message, GTK_WINDOW (data->ass));
g_error_free (error);
gtk_dialog_run (GTK_DIALOG (d));
gtk_widget_destroy (d);
g_free (msg);
enroll_data_destroy (data);
return;
}
data->state = STATE_CLAIMED;
result = g_dbus_connection_call_sync (connection,
"net.reactivated.Fprint",
g_dbus_proxy_get_object_path (data->device),
"org.freedesktop.DBus.Properties",
"Get",
g_variant_new ("(ss)", "net.reactivated.Fprint.Device", "num-enroll-stages"),
G_VARIANT_TYPE ("(v)"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
&error);
num_enroll_stages = 0;
if (result) {
GVariant *v;
g_variant_get (result, "(v)", &v);
num_enroll_stages = g_variant_get_int32 (v);
g_variant_unref (result);
g_variant_unref (v);
}
if (num_enroll_stages < 1) {
GtkWidget *d;
char *msg;
/* translators:
* The variable is the name of the device, for example:
* "Could you not access "Digital Persona U.are.U 4000/4000B" device */
msg = g_strdup_printf (_("Could not access “%s” device"), data->name);
d = get_error_dialog (msg, "net.reactivated.Fprint.Error.Internal", GTK_WINDOW (data->ass));
gtk_dialog_run (GTK_DIALOG (d));
gtk_widget_destroy (d);
g_free (msg);
enroll_data_destroy (data);
return;
}
data->num_enroll_stages = num_enroll_stages;
/* Hide the extra "bulbs" if not needed */
for (i = MAX_ENROLL_STAGES; i > data->num_enroll_stages; i--) {
char *name;
name = g_strdup_printf ("image%d", i);
gtk_widget_hide (WID (name));
g_free (name);
}
/* And set the right image */
{
path = g_strdup_printf ("/org/gnome/control-center/user-accounts/%s.png", data->finger);
}
for (i = 1; i <= data->num_enroll_stages; i++) {
char *name;
name = g_strdup_printf ("image%d", i);
gtk_image_set_from_resource (GTK_IMAGE (WID (name)), path);
g_free (name);
}
g_free (path);
g_signal_connect (data->device, "g-signal", G_CALLBACK (device_signal_cb), data);
if (!enroll_start (data, &error)) {
GtkWidget *d;
char *msg;
/* translators:
* The variable is the name of the device, for example:
* "Could you not access "Digital Persona U.are.U 4000/4000B" device */
msg = g_strdup_printf (_("Could not start finger capture on “%s” device"), data->name);
d = get_error_dialog (msg, error->message, GTK_WINDOW (data->ass));
g_error_free (error);
gtk_dialog_run (GTK_DIALOG (d));
gtk_widget_destroy (d);
g_free (msg);
enroll_data_destroy (data);
return;
}
data->state = STATE_ENROLLING;;
} else {
if (data->state == STATE_ENROLLING) {
enroll_stop (data, NULL);
data->state = STATE_CLAIMED;
}
if (data->state == STATE_CLAIMED) {
release (data, NULL);
data->state = STATE_NONE;
}
}
}
static void
enroll_fingerprints (GtkWindow *parent,
GtkWidget *editable_button,
ActUser *user)
{
GDBusProxy *device = NULL;
GtkBuilder *dialog;
EnrollData *data;
GtkWidget *ass;
char *msg;
GVariant *result;
GError *error = NULL;
ensure_manager ();
if (manager != NULL)
device = get_first_device ();
if (manager == NULL || device == NULL) {
GtkWidget *d;
d = get_error_dialog (_("Could not access any fingerprint readers"),
_("Please contact your system administrator for help."),
parent);
gtk_dialog_run (GTK_DIALOG (d));
gtk_widget_destroy (d);
return;
}
data = g_new0 (EnrollData, 1);
data->device = device;
data->editable_button = editable_button;
/* Get some details about the device */
result = g_dbus_connection_call_sync (connection,
"net.reactivated.Fprint",
g_dbus_proxy_get_object_path (data->device),
"org.freedesktop.DBus.Properties",
"GetAll",
g_variant_new ("(s)", "net.reactivated.Fprint.Device"),
G_VARIANT_TYPE ("(a{sv})"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
NULL);
if (result) {
GVariant *props;
gchar *scan_type;
g_variant_get (result, "(@a{sv})", &props);
g_variant_lookup (props, "name", "s", &data->name);
g_variant_lookup (props, "scan-type", "s", &scan_type);
if (g_strcmp0 (scan_type, "swipe") == 0)
data->is_swipe = TRUE;
g_free (scan_type);
g_variant_unref (props);
g_variant_unref (result);
}
dialog = gtk_builder_new ();
if (!gtk_builder_add_from_resource (dialog,
"/org/gnome/control-center/user-accounts/account-fingerprint.ui",
&error)) {
g_error ("%s", error->message);
g_error_free (error);
return;
}
data->dialog = dialog;
ass = WID ("assistant");
gtk_window_set_title (GTK_WINDOW (ass), _("Enable Fingerprint Login"));
gtk_window_set_transient_for (GTK_WINDOW (ass), parent);
gtk_window_set_modal (GTK_WINDOW (ass), TRUE);
gtk_window_set_resizable (GTK_WINDOW (ass), FALSE);
gtk_window_set_type_hint (GTK_WINDOW (ass), GDK_WINDOW_TYPE_HINT_DIALOG);
g_signal_connect (G_OBJECT (ass), "cancel",
G_CALLBACK (assistant_cancelled), data);
g_signal_connect (G_OBJECT (ass), "close",
G_CALLBACK (assistant_cancelled), data);
g_signal_connect (G_OBJECT (ass), "prepare",
G_CALLBACK (assistant_prepare), data);
/* Page 1 */
gtk_combo_box_set_active (GTK_COMBO_BOX (WID ("finger_combobox")), 0);
g_signal_connect (G_OBJECT (WID ("radiobutton1")), "toggled",
G_CALLBACK (finger_radio_button_toggled), data);
g_signal_connect (G_OBJECT (WID ("radiobutton2")), "toggled",
G_CALLBACK (finger_radio_button_toggled), data);
g_signal_connect (G_OBJECT (WID ("radiobutton3")), "toggled",
G_CALLBACK (finger_radio_button_toggled), data);
g_signal_connect (G_OBJECT (WID ("finger_combobox")), "changed",
G_CALLBACK (finger_combobox_changed), data);
data->finger = selected_finger (dialog);
g_object_set_data (G_OBJECT (WID("page1")), "name", "intro");
/* translators:
* The variable is the name of the device, for example:
* "To enable fingerprint login, you need to save one of your fingerprints, using the
* 'Digital Persona U.are.U 4000/4000B' device."
*/
msg = g_strdup_printf (_("To enable fingerprint login, you need to save one of your fingerprints, using the “%s” device."),
data->name);
gtk_label_set_text (GTK_LABEL (WID("intro-label")), msg);
g_free (msg);
gtk_assistant_set_page_complete (GTK_ASSISTANT (ass), WID("page1"), TRUE);
gtk_assistant_set_page_title (GTK_ASSISTANT (ass), WID("page1"), _("Selecting finger"));
gtk_assistant_set_page_title (GTK_ASSISTANT (ass), WID("page2"), _("Enrolling fingerprints"));
gtk_assistant_set_page_title (GTK_ASSISTANT (ass), WID("page3"), _("Summary"));
/* Page 2 */
g_object_set_data (G_OBJECT (WID("page2")), "name", "enroll");
msg = g_strdup_printf (TR(finger_str_to_msg (data->finger, data->is_swipe)), data->name);
gtk_label_set_text (GTK_LABEL (WID("enroll-label")), msg);
g_free (msg);
/* Page 3 */
g_object_set_data (G_OBJECT (WID("page3")), "name", "summary");
data->ass = ass;
gtk_widget_show_all (ass);
}
void
fingerprint_button_clicked (GtkWindow *parent,
GtkWidget *editable_button,
ActUser *user)
{
bindtextdomain ("fprintd", GNOMELOCALEDIR);
bind_textdomain_codeset ("fprintd", "UTF-8");
if (is_disable != FALSE) {
delete_fingerprints_question (parent, editable_button, user);
} else {
enroll_fingerprints (parent, editable_button, user);
}
}
#pragma GCC diagnostic pop