zxcvbn.php
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zxcvbn.php
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	<?php

	/**
	* Zxcvb Password Strength Driver
	*
	* Driver to check password strength using Zxcvbn-PHP
	*
	* @version 0.1
	* @author Philip Weir
	*
	* Copyright (C) Philip Weir
	*
	* 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, see http://www.gnu.org/licenses/.
	*/

	class rcube_zxcvbn_password
	{
	function strength_rules()
	{
	$rcmail = rcmail::get_instance();
	$rules = [
	$rcmail->gettext('password.passwordnoseq'),
	$rcmail->gettext('password.passwordnocommon'),
	];

	return $rules;
	}

	/**
	* Password strength check
	*
	* @param string $passwd Password
	*
	* @return array Score (1 to 5) and Reason
	*/
	function check_strength($passwd)
	{
	if (!class_exists('ZxcvbnPhp\Zxcvbn')) {
	rcube::raise_error([
	'code' => 600,
	'file' => __FILE__,
	'line' => __LINE__,
	'message' => "Password plugin: Zxcvbn library not found."
	], true, false
	);

	return;
	}

	$zxcvbn = new ZxcvbnPhp\Zxcvbn();
	$strength = $zxcvbn->passwordStrength($passwd);

	return [$strength['score'] + 1, $strength['feedback']['warning']];
	}
	}