Desktop
/* $Id: password.c,v 1.8 2012/07/12 22:00:14 khorben Exp $ */
/* Copyright (c) 2011-2012 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Locker */
/* 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, version 3 of the License.
*
* 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/>. */
/* TODO:
* - detect if caps lock is pressed
* - store the password hashed */
#include <System.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <libintl.h>
#include "Locker.h"
#include "../../config.h"
#define _(string) gettext(string)
/* Password */
/* private */
/* types */
typedef struct _LockerAuth
{
LockerAuthHelper * helper;
guint source;
/* widgets */
GtkWidget * widget;
GtkWidget * password;
GtkWidget * button;
GtkWidget * wrong;
} Password;
/* prototypes */
/* plug-in */
static Password * _password_init(LockerAuthHelper * helper);
static void _password_destroy(Password * password);
static GtkWidget * _password_get_widget(Password * password);
static int _password_action(Password * password, LockerAction action);
/* callbacks */
static void _password_on_password_activate(gpointer data);
static gboolean _password_on_password_wrong(gpointer data);
static gboolean _password_on_timeout(gpointer data);
/* public */
/* variables */
/* plug-in */
LockerAuthDefinition plugin =
{
"Password",
NULL,
NULL,
_password_init,
_password_destroy,
_password_get_widget,
_password_action,
};
/* private */
/* functions */
/* password_init */
static Password * _password_init(LockerAuthHelper * helper)
{
Password * password;
PangoFontDescription * bold;
const GdkColor white = { 0x0, 0xffff, 0xffff, 0xffff };
const GdkColor red = { 0x0, 0xffff, 0x0000, 0x0000 };
GtkWidget * hbox;
GtkWidget * widget;
char buf[256];
if((password = object_new(sizeof(*password))) == NULL)
return NULL;
password->helper = helper;
password->source = 0;
bold = pango_font_description_new();
pango_font_description_set_weight(bold, PANGO_WEIGHT_BOLD);
password->widget = gtk_vbox_new(FALSE, 4);
/* centering */
widget = gtk_label_new(NULL);
gtk_box_pack_start(GTK_BOX(password->widget), widget, TRUE, TRUE, 0);
/* hostname */
if(gethostname(buf, sizeof(buf)) != 0)
snprintf(buf, sizeof(buf), "%s", "DeforaOS " PACKAGE);
else
buf[sizeof(buf) - 1] = '\0';
widget = gtk_label_new(buf);
gtk_widget_modify_fg(widget, GTK_STATE_NORMAL, &white);
gtk_widget_modify_font(widget, bold);
gtk_box_pack_start(GTK_BOX(password->widget), widget, FALSE, TRUE, 0);
/* screen */
snprintf(buf, sizeof(buf), "%s %s", _("This screen is locked by"),
getenv("USER")); /* XXX better source? */
widget = gtk_label_new(buf);
gtk_widget_modify_fg(widget, GTK_STATE_NORMAL, &white);
gtk_box_pack_start(GTK_BOX(password->widget), widget, FALSE, TRUE, 0);
/* prompt */
widget = gtk_label_new(_("Enter password: "));
gtk_widget_modify_fg(widget, GTK_STATE_NORMAL, &white);
gtk_box_pack_start(GTK_BOX(password->widget), widget, FALSE, TRUE, 0);
hbox = gtk_hbox_new(FALSE, 4);
/* left padding (centering) */
widget = gtk_label_new(NULL);
gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, 0);
/* entry */
password->password = gtk_entry_new();
gtk_entry_set_visibility(GTK_ENTRY(password->password), FALSE);
g_signal_connect_swapped(password->password, "activate", G_CALLBACK(
_password_on_password_activate), password);
gtk_box_pack_start(GTK_BOX(hbox), password->password, FALSE, TRUE, 0);
/* button */
password->button = gtk_button_new_from_stock(GTK_STOCK_OK);
g_signal_connect_swapped(password->button, "clicked", G_CALLBACK(
_password_on_password_activate), password);
gtk_box_pack_start(GTK_BOX(hbox), password->button, FALSE, TRUE, 0);
/* right padding (centering) */
widget = gtk_label_new(NULL);
gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(password->widget), hbox, FALSE, TRUE, 0);
/* wrong */
password->wrong = gtk_label_new(_("Wrong password!"));
gtk_widget_modify_fg(password->wrong, GTK_STATE_NORMAL, &red);
gtk_widget_modify_font(password->wrong, bold);
/* FIXME always show but display the current error instead */
gtk_widget_set_no_show_all(password->wrong, TRUE);
gtk_box_pack_start(GTK_BOX(password->widget), password->wrong, FALSE,
TRUE, 0);
/* centering */
widget = gtk_label_new(NULL);
gtk_box_pack_start(GTK_BOX(password->widget), widget, TRUE, TRUE, 0);
gtk_widget_show_all(password->widget);
gtk_widget_hide(password->widget);
pango_font_description_free(bold);
return password;
}
/* password_destroy */
static void _password_destroy(Password * password)
{
if(password->source != 0)
g_source_remove(password->source);
object_delete(password);
}
/* password_get_widget */
static GtkWidget * _password_get_widget(Password * password)
{
return password->widget;
}
/* password_action */
static int _password_action(Password * password, LockerAction action)
{
LockerAuthHelper * helper = password->helper;
GtkWidget * entry = password->password;
char const * p;
switch(action)
{
case LOCKER_ACTION_DEACTIVATE:
gtk_widget_grab_focus(entry);
gtk_widget_show(password->widget);
break;
case LOCKER_ACTION_LOCK:
gtk_widget_hide(password->widget);
if((p = helper->config_get(helper->locker, "password",
"password")) == NULL)
{
gtk_entry_set_text(GTK_ENTRY(entry), "");
return -helper->error(helper->locker,
_("No password was set"), 1);
}
gtk_widget_set_sensitive(entry, TRUE);
gtk_widget_set_sensitive(password->button, TRUE);
gtk_entry_set_text(GTK_ENTRY(entry), "");
if(password->source != 0)
g_source_remove(password->source);
password->source = g_timeout_add(30000,
_password_on_timeout, password);
break;
case LOCKER_ACTION_START:
gtk_widget_hide(password->widget);
break;
case LOCKER_ACTION_UNLOCK:
gtk_widget_hide(password->widget);
if(password->source != 0)
g_source_remove(password->source);
password->source = 0;
break;
default:
break;
}
return 0;
}
/* callbacks */
/* password_on_password_activate */
static void _password_on_password_activate(gpointer data)
{
Password * password = data;
LockerAuthHelper * helper = password->helper;
char const * text;
char const * p;
if(password->source != 0)
g_source_remove(password->source);
password->source = 0;
gtk_widget_set_sensitive(password->password, FALSE);
gtk_widget_set_sensitive(password->button, FALSE);
text = gtk_entry_get_text(GTK_ENTRY(password->password));
if((p = helper->config_get(helper->locker, "password", "password"))
== NULL)
{
gtk_entry_set_text(GTK_ENTRY(password->password), "");
helper->error(NULL, _("No password was set"), 1);
return;
}
if(strcmp(text, p) == 0)
{
gtk_entry_set_text(GTK_ENTRY(password->password), "");
helper->action(helper->locker, LOCKER_ACTION_UNLOCK);
return;
}
gtk_entry_set_text(GTK_ENTRY(password->password), "");
helper->error(NULL, _("Authentication failed"), 1);
gtk_widget_grab_focus(password->password);
gtk_widget_show(password->wrong);
password->source = g_timeout_add(3000, _password_on_password_wrong,
password);
}
/* password_on_password_wrong */
static gboolean _password_on_password_wrong(gpointer data)
{
Password * password = data;
password->source = 0;
gtk_widget_hide(password->wrong);
gtk_widget_set_sensitive(password->password, TRUE);
gtk_widget_set_sensitive(password->button, TRUE);
gtk_entry_set_text(GTK_ENTRY(password->password), "");
gtk_widget_hide(password->widget);
password->helper->action(password->helper->locker, LOCKER_ACTION_START);
return FALSE;
}
/* password_on_timeout */
static gboolean _password_on_timeout(gpointer data)
{
Password * password = data;
LockerAuthHelper * helper = password->helper;
gtk_widget_hide(password->widget);
password->source = 0;
helper->action(helper->locker, LOCKER_ACTION_ACTIVATE);
return FALSE;
}