BasicCallBack.php
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BasicCallBack.php
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	<?php

	namespace Sabre\DAV\Auth\Backend;

	/**
	* Extremely simply HTTP Basic auth backend.
	*
	* This backend basically works by calling a callback, which receives a
	* username and password.
	* The callback must return true or false depending on if authentication was
	* correct.
	*
	* @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
	* @author Evert Pot (http://evertpot.com/)
	* @license http://sabre.io/license/ Modified BSD License
	*/
	class BasicCallBack extends AbstractBasic {

	/**
	* Callback
	*
	* @var callable
	*/
	protected $callBack;

	/**
	* Creates the backend.
	*
	* A callback must be provided to handle checking the username and
	* password.
	*
	* @param callable $callBack
	* @return void
	*/
	function __construct(callable $callBack) {

	$this->callBack = $callBack;

	}

	/**
	* Validates a username and password
	*
	* This method should return true or false depending on if login
	* succeeded.
	*
	* @param string $username
	* @param string $password
	* @return bool
	*/
	protected function validateUserPass($username, $password) {

	$cb = $this->callBack;
	return $cb($username, $password);

	}

	}