dfe03a1173
This also adds another out parameter to pw_strength(), which is a discrete indication of the password strength (to be used with GtkLevelBar). The advantage of having such a parameter back from pw_strength() is that we can make sure the fill value and the hint string change at the same time, for better consistency. https://bugzilla.gnome.org/show_bug.cgi?id=679984
127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright 2012 Red Hat, Inc,
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Written by: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include "pw-utils.h"
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#include <glib.h>
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#include <glib/gi18n.h>
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#include <pwquality.h>
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static pwquality_settings_t *
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get_pwq (void)
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{
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static pwquality_settings_t *settings;
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if (settings == NULL) {
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gchar *err = NULL;
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settings = pwquality_default_settings ();
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if (pwquality_read_config (settings, NULL, (gpointer)&err) < 0) {
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g_error ("failed to read pwquality configuration: %s\n", err);
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}
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}
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return settings;
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}
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gint
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pw_min_length (void)
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{
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gint value = 0;
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if (pwquality_get_int_value (get_pwq (), PWQ_SETTING_MIN_LENGTH, &value) < 0) {
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g_error ("Failed to read pwquality setting\n" );
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}
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return value;
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}
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gchar *
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pw_generate (void)
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{
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gchar *res;
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gint rv;
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rv = pwquality_generate (get_pwq (), 0, &res);
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if (rv < 0) {
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g_error ("Password generation failed: %s\n",
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pwquality_strerror (NULL, 0, rv, NULL));
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return NULL;
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}
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return res;
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}
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gdouble
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pw_strength (const gchar *password,
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const gchar *old_password,
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const gchar *username,
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const gchar **hint,
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const gchar **long_hint,
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gint *strength_level)
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{
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gint rv, level = 0;
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gdouble strength = 0.0;
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void *auxerror;
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rv = pwquality_check (get_pwq (),
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password, old_password, username,
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&auxerror);
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if (rv == PWQ_ERROR_MIN_LENGTH) {
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*hint = C_("Password strength", "Too short");
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*long_hint = pwquality_strerror (NULL, 0, rv, auxerror);
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goto out;
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}
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else if (rv < 0) {
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*hint = C_("Password strength", "Not good enough");
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*long_hint = pwquality_strerror (NULL, 0, rv, auxerror);
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goto out;
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}
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strength = CLAMP (0.01 * rv, 0.0, 1.0);
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if (strength < 0.50) {
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level = 1;
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*hint = C_("Password strength", "Weak");
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} else if (strength < 0.75) {
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level = 2;
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*hint = C_("Password strength", "Fair");
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} else if (strength < 0.90) {
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level = 3;
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*hint = C_("Password strength", "Good");
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} else {
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level = 4;
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*hint = C_("Password strength", "Strong");
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}
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*long_hint = NULL;
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out:
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if (strength_level)
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*strength_level = level;
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return strength;
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}
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