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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright 2012 Red Hat, Inc,
*
* 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 3 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Written by: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include "pw-utils.h"
#include <glib.h>
#include <glib/gi18n.h>
#include <pwquality.h>
static pwquality_settings_t *
get_pwq (void)
{
static pwquality_settings_t *settings;
if (settings == NULL) {
gchar *err = NULL;
settings = pwquality_default_settings ();
if (pwquality_read_config (settings, NULL, (gpointer)&err) < 0) {
g_error ("failed to read pwquality configuration: %s\n", err);
}
}
return settings;
}
gint
pw_min_length (void)
{
gint value = 0;
if (pwquality_get_int_value (get_pwq (), PWQ_SETTING_MIN_LENGTH, &value) < 0) {
g_error ("Failed to read pwquality setting\n" );
}
return value;
}
gchar *
pw_generate (void)
{
gchar *res;
gint rv;
rv = pwquality_generate (get_pwq (), 0, &res);
if (rv < 0) {
g_error ("Password generation failed: %s\n",
pwquality_strerror (NULL, 0, rv, NULL));
return NULL;
}
return res;
}
gdouble
pw_strength (const gchar *password,
const gchar *old_password,
const gchar *username,
const gchar **hint,
const gchar **long_hint)
{
gint rv;
gdouble strength;
void *auxerror;
rv = pwquality_check (get_pwq (),
password, old_password, username,
&auxerror);
if (rv == PWQ_ERROR_MIN_LENGTH) {
*hint = C_("Password strength", "Too short");
*long_hint = pwquality_strerror (NULL, 0, rv, auxerror);
return 0.0;
}
else if (rv < 0) {
*hint = C_("Password strength", "Not good enough");
*long_hint = pwquality_strerror (NULL, 0, rv, auxerror);
return 0.0;
}
strength = CLAMP (0.01 * rv, 0.0, 1.0);
if (strength < 0.50)
*hint = C_("Password strength", "Weak");
else if (strength < 0.75)
*hint = C_("Password strength", "Fair");
else if (strength < 0.90)
*hint = C_("Password strength", "Good");
else
*hint = C_("Password strength", "Strong");
*long_hint = NULL;
return strength;
}
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