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msd2/phpBB3/phpbb/passwords/driver/bcrypt_wcf2.php

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+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\passwords\driver;
+
+class bcrypt_wcf2 extends base
+{
+	const PREFIX = '$wcf2$';
+
+	/** @var \phpbb\passwords\driver\bcrypt */
+	protected $bcrypt;
+
+	/** @var \phpbb\passwords\driver\helper */
+	protected $helper;
+
+	/**
+	* Constructor of passwords driver object
+	*
+	* @param \phpbb\passwords\driver\bcrypt $bcrypt Salted md5 driver
+	* @param \phpbb\passwords\driver\helper $helper Password driver helper
+	*/
+	public function __construct(\phpbb\passwords\driver\bcrypt $bcrypt, helper $helper)
+	{
+		$this->bcrypt = $bcrypt;
+		$this->helper = $helper;
+	}
+
+	/**
+	* {@inheritdoc}
+	*/
+	public function get_prefix()
+	{
+		return self::PREFIX;
+	}
+
+	/**
+	* {@inheritdoc}
+	*/
+	public function is_legacy()
+	{
+		return true;
+	}
+
+	/**
+	* {@inheritdoc}
+	*/
+	public function hash($password, $user_row = '')
+	{
+		// Do not support hashing
+		return false;
+	}
+
+	/**
+	* {@inheritdoc}
+	*/
+	public function check($password, $hash, $user_row = array())
+	{
+		if (empty($hash) || strlen($hash) != 60)
+		{
+			return false;
+		}
+		else
+		{
+			$salt = substr($hash, 0, 29);
+
+			if (strlen($salt) != 29)
+			{
+				return false;
+			}
+			// Works for standard WCF 2.x, i.e. WBB4 and similar
+			return $this->helper->string_compare($hash, $this->bcrypt->hash($this->bcrypt->hash($password, $salt), $salt));
+		}
+	}
+}