forked from Wavyzz/dolibarr
145 lines
4.0 KiB
PHP
145 lines
4.0 KiB
PHP
<?php
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/* Copyright (C) 2008 Laurent Destailleur <eldy@users.sourceforge.net>
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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 2 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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* or see http://www.gnu.org/
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*/
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/**
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\file htdocs/lib/security.lib.php
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\brief Ensemble de fonctions de securite de dolibarr sous forme de lib
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\version $Id$
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*/
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/**
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\brief Fonction pour initialiser un salt pour la fonction crypt
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\param $type 2=>renvoi un salt pour cryptage DES
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12=>renvoi un salt pour cryptage MD5
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non defini=>renvoi un salt pour cryptage par defaut
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\return string Chaine salt
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*/
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function makesalt($type=CRYPT_SALT_LENGTH)
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{
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dolibarr_syslog("security.lib.php::makesalt type=".$type);
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switch($type)
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{
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case 12: // 8 + 4
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$saltlen=8; $saltprefix='$1$'; $saltsuffix='$'; break;
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case 8: // 8 + 4 (Pour compatibilite, ne devrait pas etre utilisé)
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$saltlen=8; $saltprefix='$1$'; $saltsuffix='$'; break;
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case 2: // 2
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default: // by default, fall back on Standard DES (should work everywhere)
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$saltlen=2; $saltprefix=''; $saltsuffix=''; break;
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}
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$salt='';
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while(strlen($salt) < $saltlen) $salt.=chr(rand(64,126));
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$result=$saltprefix.$salt.$saltsuffix;
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dolibarr_syslog("security.lib.php::makesalt return=".$result);
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return $result;
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}
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/**
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* \brief Encode\decode database password in config file
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* \param level Encode level : 0 no enconding, 1 encoding
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* \return int <0 if KO, >0 if OK
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*/
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function encodedecode_dbpassconf($level=0)
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{
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dolibarr_syslog("security.lib::encodedecode_dbpassconf level=".$level, LOG_DEBUG);
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$config = '';
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if ($fp = fopen(DOL_DOCUMENT_ROOT.'/conf/conf.php','r'))
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{
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while(!feof($fp))
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{
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$buffer = fgets($fp,4096);
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if (strstr($buffer,"\$dolibarr_main_db_encrypted_pass") && $level == 0)
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{
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$passwd = strstr($buffer,"$dolibarr_main_db_encrypted_pass=");
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$passwd = substr(substr($passwd,2),0,-3);
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$passwd = dol_decode($passwd);
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$config .= "\$dolibarr_main_db_pass=\"$passwd\";\n";
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}
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else if (strstr($buffer,"\$dolibarr_main_db_pass") && $level == 1)
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{
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$passwd = strstr($buffer,"$dolibarr_main_db_pass=");
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$passwd = substr(substr($passwd,2),0,-3);
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$passwd = dol_encode($passwd);
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$config .= "\$dolibarr_main_db_encrypted_pass=\"$passwd\";\n";
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}
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else
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{
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$config .= $buffer;
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}
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}
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fclose($fp);
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if ($fp = @fopen(DOL_DOCUMENT_ROOT.'/conf/conf.php','w'))
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{
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fputs($fp, $config, strlen($config));
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fclose($fp);
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return 1;
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}
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else
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{
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dolibarr_syslog("security.lib::encodedecode_dbpassconf Failed to open conf.php file for writing", LOG_WARNING);
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return -1;
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}
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}
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else
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{
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dolibarr_syslog("security.lib::encodedecode_dbpassconf Failed to read conf.php", LOG_ERR);
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return -2;
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}
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}
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/**
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* \brief Encode une chaine de caractére
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* \param chaine chaine de caractères a encoder
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* \return string_coded chaine de caractères encodée
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*/
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function dol_encode($chain)
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{
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for($i=0;$i<strlen($chain);$i++)
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{
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$output_tab[$i] = chr(ord(substr($chain,$i,1))+17);
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}
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$string_coded = base64_encode(implode ("",$output_tab));
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return $string_coded;
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}
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/**
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* \brief Decode une chaine de caractére
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* \param chain chaine de caractéres a decoder
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* \return string_coded chaine de caractéres decodée
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*/
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function dol_decode($chain)
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{
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$chain = base64_decode($chain);
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for($i=0;$i<strlen($chain);$i++)
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{
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$output_tab[$i] = chr(ord(substr($chain,$i,1))-17);
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}
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$string_decoded = implode ("",$output_tab);
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return $string_decoded;
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}
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?>
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