<?php /* This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/) Copyright (C) 2010 - 2019 Roland Gruber 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /** * Checks if the environment fits to run LAM. * This code checks if the PHP version is ok, the required extensions are active * and the memory limit is high enough. * * @author Roland Gruber * @package main */ /** status messages */ include_once(__DIR__ . "/../lib/status.inc"); /** config */ include_once(__DIR__ . "/../lib/config.inc"); // check if PHP >= 5.6.0 if (version_compare(phpversion(), '7.0.0') < 0) { echo "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n\n"; echo "<html>\n<head>\n"; echo "<meta http-equiv=\"content-type\" content=\"text/html; charset=UTF-8\">\n"; echo "<meta http-equiv=\"pragma\" content=\"no-cache\">\n <meta http-equiv=\"cache-control\" content=\"no-cache\">\n"; echo "<link rel=\"stylesheet\" type=\"text/css\" href=\"../style/500_layout.css\">\n"; echo "<link rel=\"shortcut icon\" type=\"image/x-icon\" href=\"../graphics/favicon.ico\">\n"; echo "<link rel=\"icon\" href=\"../graphics/logo136.png\">\n"; echo "<title>LDAP Account Manager</title>\n"; echo "</head><body>\n"; StatusMessage("ERROR", "LAM needs a PHP 5 version which is greater or equal than 7.0.0.", "Please upgrade your PHP installation. The found version is " . phpversion()); echo "<br><br>"; echo "</body></html>"; exit(); } // check environment $criticalErrors = array(); // check if PHP has session support if (! function_exists('session_start')) { $criticalErrors[] = array("ERROR", "Your PHP has no session support!", "Please install the session extension for PHP."); } // check if PHP has SPL support if (! function_exists('class_implements')) { $criticalErrors[] = array("ERROR", "Your PHP has no SPL support!", "Please install the SPL extension for PHP."); } // check if PHP has LDAP support if (! function_exists('ldap_search')) { $criticalErrors[] = array("ERROR", "Your PHP has no LDAP support!", "Please install the LDAP extension for PHP."); } // check if PHP has gettext support if (! function_exists('gettext') || !function_exists('_')) { $criticalErrors[] = array("ERROR", "Your PHP has no gettext support!", "Please install gettext for PHP."); } // check if PHP has openssl support if (! function_exists('openssl_x509_parse')) { $criticalErrors[] = array("ERROR", "Your PHP has no openssl support!", "Please install openssl for PHP."); } // check if PHP has XML support if (! function_exists('utf8_decode') || !extension_loaded('xml')) { $criticalErrors[] = array("ERROR", "Your PHP has no XML support!", "Please install the XML extension for PHP."); } if (!extension_loaded('libxml')) { $criticalErrors[] = array("ERROR", "Your PHP has no Lib XML support!", "Please install the Lib XML extension for PHP."); } if (!class_exists('XMLReader')) { $criticalErrors[] = array("ERROR", "Your PHP has no XMLReader support!", "Please active XMLReader for PHP."); } if (!class_exists('XMLWriter')) { $criticalErrors[] = array("ERROR", "Your PHP has no XMLWriter support!", "Please active XMLWriter for PHP."); } // imagick/GD if (!extension_loaded('imagick') && !extension_loaded('gd')) { $criticalErrors[] = array("ERROR", "Your PHP has no imagick or GD support.", "Please install the imagick or GD extension for PHP."); } // check if PHP has JSON support if (! function_exists('json_encode')) { $criticalErrors[] = array("ERROR", "Your PHP has no JSON support!", "Please install the JSON extension for PHP."); } // check file permissions $writableDirs = array('sess', 'tmp'); for ($i = 0; $i < sizeof($writableDirs); $i++) { $path = realpath('../') . "/" . $writableDirs[$i]; if (!is_writable($path)) { $criticalErrors[] = array("ERROR", 'The directory %s is not writable for the web server. Please change your file permissions.', '', array($path)); } } // check session auto start if (ini_get("session.auto_start") == "1") { $criticalErrors[] = array("ERROR", "Please deactivate session.auto_start in your php.ini. LAM will not work if it is activated."); } // check memory limit $memLimit = ini_get('memory_limit'); if (isset($memLimit) && ($memLimit != '') && (substr(strtoupper($memLimit), strlen($memLimit) - 1) == 'M')) { if (intval(substr($memLimit, 0, strlen($memLimit) - 1)) < 128) { $criticalErrors[] = array("ERROR", "Please increase the \"memory_limit\" parameter in your php.ini to at least \"128M\".", "Your current memory limit is $memLimit."); } } // check PCRE regex system if (!@preg_match('/^\p{L}+$/u', "abc")) { $criticalErrors[] = array("ERROR", "Your PCRE library has no complete Unicode support. Please upgrade libpcre or compile with \"--enable-unicode-properties\"."); } // check ZIP support for PDF files in file upload if (!extension_loaded('zip')) { $criticalErrors[] = array("ERROR", "Your PHP has no ZIP support.", "Please install the ZIP extension for PHP."); } // check for main config $mainConfig = new LAMCfgMain(); if (!$mainConfig->isConfigFileExisting() && !$mainConfig->installSampleConfig()) { $criticalErrors[] = array("ERROR", "The main config file (config.cfg) does not exist.", "Please see the manual for installation instructions."); } // stop login if critical errors occured if (sizeof($criticalErrors) > 0) { echo "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n\n"; echo "<html>\n<head>\n"; echo "<meta http-equiv=\"content-type\" content=\"text/html; charset=UTF-8\">\n"; echo "<meta http-equiv=\"pragma\" content=\"no-cache\">\n <meta http-equiv=\"cache-control\" content=\"no-cache\">\n"; echo "<link rel=\"stylesheet\" type=\"text/css\" href=\"../style/500_layout.css\">\n"; echo "<link rel=\"shortcut icon\" type=\"image/x-icon\" href=\"../graphics/favicon.ico\">\n"; echo "<link rel=\"icon\" href=\"../graphics/logo136.png\">\n"; echo "<title>LDAP Account Manager</title>\n"; echo "</head><body>\n"; for ($i = 0; $i < sizeof($criticalErrors); $i++) { call_user_func_array("StatusMessage", $criticalErrors[$i]); echo "<br><br>"; } echo "</body></html>"; exit(); } ?>