mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-08 00:54:50 +01:00
136 lines
3.8 KiB
PHP
136 lines
3.8 KiB
PHP
<?php
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/**************************************************************************\
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* eGroupWare *
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* http://www.egroupware.org *
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* Written by Miles Lott <milos@groupwhere.org> *
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* ------------------------------------------------------------------------ *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; either version 2 of the License, or (at your *
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* option) any later version. *
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\**************************************************************************/
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/* $Id$ */
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/*
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Set a global flag to indicate this file was found by setup/config.php.
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config.php will unset it after parsing the form values.
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*/
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$GLOBALS['egw_info']['server']['found_validation_hook'] = True;
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function in_docroot($path='')
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{
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$docroots = array(EGW_SERVER_ROOT,$_SERVER['DOCUMENT_ROOT']);
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foreach($docroots as $docroot)
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{
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$len = strlen($docroot);
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if($docroot == substr($path,0,$len))
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{
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$rest = substr($path,$len);
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if(!strlen($rest) || $rest[0] == DIRECTORY_SEPARATOR)
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{
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return True;
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}
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}
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}
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return False;
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}
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function files_dir($settings)
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{
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if(in_docroot($settings['files_dir']))
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{
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$GLOBALS['config_error'] = 'Path to user and group files HAS TO BE OUTSIDE of the webservers document-root!!!';
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}
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}
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function _mcrypt_test_module_mode($module,$mode)
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{
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/* Data */
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$key = 'this is a very long key, even too long for the cipher';
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$plain_text = 'very important data';
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/* Open module, and create IV */
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if(!$GLOBALS['td'] = @mcrypt_module_open($module, '',$mode, ''))
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{
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@mcrypt_module_close($GLOBALS['td']);
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return False;
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}
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$key = substr($key, 0, mcrypt_enc_get_key_size($GLOBALS['td']));
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$iv_size = mcrypt_enc_get_iv_size($GLOBALS['td']);
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$iv = @mcrypt_create_iv($iv_size, MCRYPT_RAND);
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/* Initialize encryption handle */
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if(mcrypt_generic_init($GLOBALS['td'], $key, $iv) != -1)
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{
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/* Encrypt data */
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$c_t = mcrypt_generic($GLOBALS['td'], $plain_text);
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mcrypt_generic_deinit($GLOBALS['td']);
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// close the module
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mcrypt_module_close($GLOBALS['td']);
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/* Reinitialize buffers for decryption */
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/* Open module */
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$GLOBALS['td'] = mcrypt_module_open($module, '', $mode, '');
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$key = substr($key, 0, mcrypt_enc_get_key_size($GLOBALS['td']));
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mcrypt_generic_init($GLOBALS['td'], $key, $iv);
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$p_t = mdecrypt_generic($GLOBALS['td'], $c_t);
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/* Clean up */
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mcrypt_generic_deinit($GLOBALS['td']);
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mcrypt_module_close($GLOBALS['td']);
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}
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else
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{
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@mcrypt_module_close($GLOBALS['td']);
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}
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return rtrim($p_t) === $plain_text;
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}
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/* run a self-test through every listed cipher and mode - from robert at peakepro dot com (php.net manual) */
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function mcrypt_check_sanity()
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{
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$modes = mcrypt_list_modes();
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$algorithms = mcrypt_list_algorithms();
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foreach($algorithms as $cipher)
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{
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if(mcrypt_module_self_test($cipher))
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{
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$GLOBALS['ciphers'][$cipher] = array();
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foreach($modes as $mode)
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{
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if(_mcrypt_test_module_mode($cipher,$mode))
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{
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$result = True;
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}
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else
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{
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$result = False;
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}
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@$GLOBALS['ciphers'][$cipher][$mode] = $result;
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}
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}
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}
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ksort($GLOBALS['ciphers']);
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/* _debug_array($GLOBALS['ciphers']); */
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}
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function mcrypt_algo($settings)
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{
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/* _debug_array($settings);exit; */
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if(@function_exists('mcrypt_list_modes'))
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{
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mcrypt_check_sanity();
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if(!@$GLOBALS['ciphers'][$settings['mcrypt_algo']][$settings['mcrypt_mode']])
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{
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$GLOBALS['config_error'] = 'Invalid Mcrypt Algorithm/Mode combination';
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}
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}
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}
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