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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* setup.php - Sets up sessions, connects to databases and so on
*
* Normally this is only called by the main config.php file
* Normally this file does not need to be edited.
*
* @package core
* @subpackage lib
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Holds the core settings that affect how Moodle works. Some of its fields
* are set in config.php, and the rest are loaded from the config table.
*
* Some typical settings in the $CFG global:
* - $CFG->wwwroot - Path to moodle index directory in url format.
* - $CFG->dataroot - Path to moodle data files directory on server's filesystem.
* - $CFG->dirroot - Path to moodle's library folder on server's filesystem.
* - $CFG->libdir - Path to moodle's library folder on server's filesystem.
* - $CFG->backuptempdir - Path to moodle's backup temp file directory on server's filesystem.
* - $CFG->tempdir - Path to moodle's temp file directory on server's filesystem.
* - $CFG->cachedir - Path to moodle's cache directory on server's filesystem (shared by cluster nodes).
* - $CFG->localcachedir - Path to moodle's local cache directory (not shared by cluster nodes).
*
* @global object $CFG
* @name $CFG
*/
global $CFG; // this should be done much earlier in config.php before creating new $CFG instance
if (!isset($CFG)) {
if (defined('PHPUNIT_TEST') and PHPUNIT_TEST) {
echo('There is a missing "global $CFG;" at the beginning of the config.php file.'."\n");
exit(1);
} else {
// this should never happen, maybe somebody is accessing this file directly...
exit(1);
}
}
// We can detect real dirroot path reliably since PHP 4.0.2,
// it can not be anything else, there is no point in having this in config.php
$CFG->dirroot = dirname(__DIR__);
// File permissions on created directories in the $CFG->dataroot
if (!isset($CFG->directorypermissions)) {
$CFG->directorypermissions = 02777; // Must be octal (that's why it's here)
}
if (!isset($CFG->filepermissions)) {
$CFG->filepermissions = ($CFG->directorypermissions & 0666); // strip execute flags
}
// Better also set default umask because developers often forget to include directory
// permissions in mkdir() and chmod() after creating new files.
if (!isset($CFG->umaskpermissions)) {
$CFG->umaskpermissions = (($CFG->directorypermissions & 0777) ^ 0777);
}
umask($CFG->umaskpermissions);
if (defined('BEHAT_SITE_RUNNING')) {
// We already switched to behat test site previously.
} else if (!empty($CFG->behat_wwwroot) or !empty($CFG->behat_dataroot) or !empty($CFG->behat_prefix)) {
// The behat is configured on this server, we need to find out if this is the behat test
// site based on the URL used for access.
require_once(__DIR__ . '/../lib/behat/lib.php');
// Update config variables for parallel behat runs.
behat_update_vars_for_process();
// If behat is being installed for parallel run, then we modify params for parallel run only.
if (behat_is_test_site() && !(defined('BEHAT_PARALLEL_UTIL') && empty($CFG->behatrunprocess))) {
clearstatcache();
// Checking the integrity of the provided $CFG->behat_* vars and the
// selected wwwroot to prevent conflicts with production and phpunit environments.
behat_check_config_vars();
// Check that the directory does not contains other things.
if (!file_exists("$CFG->behat_dataroot/behattestdir.txt")) {
if ($dh = opendir($CFG->behat_dataroot)) {
while (($file = readdir($dh)) !== false) {
if ($file === 'behat' or $file === '.' or $file === '..' or $file === '.DS_Store' or is_numeric($file)) {
continue;
}
behat_error(BEHAT_EXITCODE_CONFIG, "$CFG->behat_dataroot directory is not empty, ensure this is the " .
"directory where you want to install behat test dataroot");
}
closedir($dh);
unset($dh);
unset($file);
}
if (defined('BEHAT_UTIL')) {
// Now we create dataroot directory structure for behat tests.
testing_initdataroot($CFG->behat_dataroot, 'behat');
} else {
behat_error(BEHAT_EXITCODE_INSTALL);
}
}
if (!defined('BEHAT_UTIL') and !defined('BEHAT_TEST')) {
// Somebody tries to access test site directly, tell them if not enabled.
$behatdir = preg_replace("#[/|\\\]" . BEHAT_PARALLEL_SITE_NAME . "\d{0,}$#", '', $CFG->behat_dataroot);
if (!file_exists($behatdir . '/test_environment_enabled.txt')) {
behat_error(BEHAT_EXITCODE_CONFIG, 'Behat is configured but not enabled on this test site.');
}
}
// Constant used to inform that the behat test site is being used,
// this includes all the processes executed by the behat CLI command like
// the site reset, the steps executed by the browser drivers when simulating
// a user session and a real session when browsing manually to $CFG->behat_wwwroot
// like the browser driver does automatically.
// Different from BEHAT_TEST as only this last one can perform CLI
// actions like reset the site or use data generators.
define('BEHAT_SITE_RUNNING', true);
// Clean extra config.php settings.
behat_clean_init_config();
// Now we can begin switching $CFG->X for $CFG->behat_X.
$CFG->wwwroot = $CFG->behat_wwwroot;
$CFG->prefix = $CFG->behat_prefix;
$CFG->dataroot = $CFG->behat_dataroot;
}
}
// Normalise dataroot - we do not want any symbolic links, trailing / or any other weirdness there
if (!isset($CFG->dataroot)) {
if (isset($_SERVER['REMOTE_ADDR'])) {
header($_SERVER['SERVER_PROTOCOL'] . ' 503 Service Unavailable');
}
echo('Fatal error: $CFG->dataroot is not specified in config.php! Exiting.'."\n");
exit(1);
}
$CFG->dataroot = realpath($CFG->dataroot);
if ($CFG->dataroot === false) {
if (isset($_SERVER['REMOTE_ADDR'])) {
header($_SERVER['SERVER_PROTOCOL'] . ' 503 Service Unavailable');
}
echo('Fatal error: $CFG->dataroot is not configured properly, directory does not exist or is not accessible! Exiting.'."\n");
exit(1);
} else if (!is_writable($CFG->dataroot)) {
if (isset($_SERVER['REMOTE_ADDR'])) {
header($_SERVER['SERVER_PROTOCOL'] . ' 503 Service Unavailable');
}
echo('Fatal error: $CFG->dataroot is not writable, admin has to fix directory permissions! Exiting.'."\n");
exit(1);
}
// wwwroot is mandatory
if (!isset($CFG->wwwroot) or $CFG->wwwroot === 'http://example.com/moodle') {
if (isset($_SERVER['REMOTE_ADDR'])) {
header($_SERVER['SERVER_PROTOCOL'] . ' 503 Service Unavailable');
}
echo('Fatal error: $CFG->wwwroot is not configured! Exiting.'."\n");
exit(1);
}
// Make sure there is some database table prefix.
if (!isset($CFG->prefix)) {
$CFG->prefix = '';
}
// Define admin directory
if (!isset($CFG->admin)) { // Just in case it isn't defined in config.php
$CFG->admin = 'admin'; // This is relative to the wwwroot and dirroot
}
// Set up some paths.
$CFG->libdir = $CFG->dirroot .'/lib';
// Allow overriding of tempdir but be backwards compatible
if (!isset($CFG->tempdir)) {
$CFG->tempdir = "$CFG->dataroot/temp";
}
// Allow overriding of backuptempdir but be backwards compatible
if (!isset($CFG->backuptempdir)) {
$CFG->backuptempdir = "$CFG->tempdir/backup";
}
// Allow overriding of cachedir but be backwards compatible
if (!isset($CFG->cachedir)) {
$CFG->cachedir = "$CFG->dataroot/cache";
}
// Allow overriding of localcachedir.
if (!isset($CFG->localcachedir)) {
$CFG->localcachedir = "$CFG->dataroot/localcache";
}
// Location of all languages except core English pack.
if (!isset($CFG->langotherroot)) {
$CFG->langotherroot = $CFG->dataroot.'/lang';
}
// Location of local lang pack customisations (dirs with _local suffix).
if (!isset($CFG->langlocalroot)) {
$CFG->langlocalroot = $CFG->dataroot.'/lang';
}
// The current directory in PHP version 4.3.0 and above isn't necessarily the
// directory of the script when run from the command line. The require_once()
// would fail, so we'll have to chdir()
if (!isset($_SERVER['REMOTE_ADDR']) && isset($_SERVER['argv'][0])) {
// do it only once - skip the second time when continuing after prevous abort
if (!defined('ABORT_AFTER_CONFIG') and !defined('ABORT_AFTER_CONFIG_CANCEL')) {
chdir(dirname($_SERVER['argv'][0]));
}
}
// sometimes default PHP settings are borked on shared hosting servers, I wonder why they have to do that??
ini_set('precision', 14); // needed for upgrades and gradebook
ini_set('serialize_precision', 17); // Make float serialization consistent on all systems.
// Scripts may request no debug and error messages in output
// please note it must be defined before including the config.php script
// and in some cases you also need to set custom default exception handler
if (!defined('NO_DEBUG_DISPLAY')) {
if (defined('AJAX_SCRIPT') and AJAX_SCRIPT) {
// Moodle AJAX scripts are expected to return json data, any PHP notices or errors break it badly,
// developers simply must learn to watch error log.
define('NO_DEBUG_DISPLAY', true);
} else {
define('NO_DEBUG_DISPLAY', false);
}
}
// Some scripts such as upgrade may want to prevent output buffering
if (!defined('NO_OUTPUT_BUFFERING')) {
define('NO_OUTPUT_BUFFERING', false);
}
// PHPUnit tests need custom init
if (!defined('PHPUNIT_TEST')) {
define('PHPUNIT_TEST', false);
}
// Performance tests needs to always display performance info, even in redirections.
if (!defined('MDL_PERF_TEST')) {
define('MDL_PERF_TEST', false);
} else {
// We force the ones we need.
if (!defined('MDL_PERF')) {
define('MDL_PERF', true);
}
if (!defined('MDL_PERFDB')) {
define('MDL_PERFDB', true);
}
if (!defined('MDL_PERFTOFOOT')) {
define('MDL_PERFTOFOOT', true);
}
}
// When set to true MUC (Moodle caching) will be disabled as much as possible.
// A special cache factory will be used to handle this situation and will use special "disabled" equivalents objects.
// This ensure we don't attempt to read or create the config file, don't use stores, don't provide persistence or
// storage of any kind.
if (!defined('CACHE_DISABLE_ALL')) {
define('CACHE_DISABLE_ALL', false);
}
// When set to true MUC (Moodle caching) will not use any of the defined or default stores.
// The Cache API will continue to function however this will force the use of the cachestore_dummy so all requests
// will be interacting with a static property and will never go to the proper cache stores.
// Useful if you need to avoid the stores for one reason or another.
if (!defined('CACHE_DISABLE_STORES')) {
define('CACHE_DISABLE_STORES', false);
}
// Servers should define a default timezone in php.ini, but if they don't then make sure no errors are shown.
date_default_timezone_set(@date_default_timezone_get());
// Detect CLI scripts - CLI scripts are executed from command line, do not have session and we do not want HTML in output
// In your new CLI scripts just add "define('CLI_SCRIPT', true);" before requiring config.php.
// Please note that one script can not be accessed from both CLI and web interface.
if (!defined('CLI_SCRIPT')) {
define('CLI_SCRIPT', false);
}
if (defined('WEB_CRON_EMULATED_CLI')) {
if (!isset($_SERVER['REMOTE_ADDR'])) {
echo('Web cron can not be executed as CLI script any more, please use admin/cli/cron.php instead'."\n");
exit(1);
}
} else if (isset($_SERVER['REMOTE_ADDR'])) {
if (CLI_SCRIPT) {
echo('Command line scripts can not be executed from the web interface');
exit(1);
}
} else {
if (!CLI_SCRIPT) {
echo('Command line scripts must define CLI_SCRIPT before requiring config.php'."\n");
exit(1);
}
}
// All web service requests have WS_SERVER == true.
if (!defined('WS_SERVER')) {
define('WS_SERVER', false);
}
// Detect CLI maintenance mode - this is useful when you need to mess with database, such as during upgrades
if (file_exists("$CFG->dataroot/climaintenance.html")) {
if (!CLI_SCRIPT) {
header($_SERVER['SERVER_PROTOCOL'] . ' 503 Moodle under maintenance');
header('Status: 503 Moodle under maintenance');
header('Retry-After: 300');
header('Content-type: text/html; charset=utf-8');
header('X-UA-Compatible: IE=edge');
/// Headers to make it not cacheable and json
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
header('Expires: Mon, 20 Aug 1969 09:23:00 GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
header('Accept-Ranges: none');
readfile("$CFG->dataroot/climaintenance.html");
die;
} else {
if (!defined('CLI_MAINTENANCE')) {
define('CLI_MAINTENANCE', true);
}
}
} else {
if (!defined('CLI_MAINTENANCE')) {
define('CLI_MAINTENANCE', false);
}
}
// Sometimes people use different PHP binary for web and CLI, make 100% sure they have the supported PHP version.
if (version_compare(PHP_VERSION, '5.6.5') < 0) {
$phpversion = PHP_VERSION;
// Do NOT localise - lang strings would not work here and we CAN NOT move it to later place.
echo "Moodle 3.2 or later requires at least PHP 5.6.5 (currently using version $phpversion).\n";
echo "Some servers may have multiple PHP versions installed, are you using the correct executable?\n";
exit(1);
}
// Detect ajax scripts - they are similar to CLI because we can not redirect, output html, etc.
if (!defined('AJAX_SCRIPT')) {
define('AJAX_SCRIPT', false);
}
// Exact version of currently used yui2 and 3 library.
$CFG->yui2version = '2.9.0';
$CFG->yui3version = '3.17.2';
// Patching the upstream YUI release.
// For important information on patching YUI modules, please see http://docs.moodle.org/dev/YUI/Patching.
// If we need to patch a YUI modules between official YUI releases, the yuipatchlevel will need to be manually
// incremented here. The module will also need to be listed in the yuipatchedmodules.
// When upgrading to a subsequent version of YUI, these should be reset back to 0 and an empty array.
$CFG->yuipatchlevel = 0;
$CFG->yuipatchedmodules = array(
);
if (!empty($CFG->disableonclickaddoninstall)) {
// This config.php flag has been merged into another one.
$CFG->disableupdateautodeploy = true;
}
// Store settings from config.php in array in $CFG - we can use it later to detect problems and overrides.
if (!isset($CFG->config_php_settings)) {
$CFG->config_php_settings = (array)$CFG;
// Forced plugin settings override values from config_plugins table.
unset($CFG->config_php_settings['forced_plugin_settings']);
if (!isset($CFG->forced_plugin_settings)) {
$CFG->forced_plugin_settings = array();
}
}
if (isset($CFG->debug)) {
$CFG->debug = (int)$CFG->debug;
} else {
$CFG->debug = 0;
}
$CFG->debugdeveloper = (($CFG->debug & (E_ALL | E_STRICT)) === (E_ALL | E_STRICT)); // DEBUG_DEVELOPER is not available yet.
if (!defined('MOODLE_INTERNAL')) { // Necessary because cli installer has to define it earlier.
/** Used by library scripts to check they are being called by Moodle. */
define('MOODLE_INTERNAL', true);
}
// core_component can be used in any scripts, it does not need anything else.
require_once($CFG->libdir .'/classes/component.php');
// special support for highly optimised scripts that do not need libraries and DB connection
if (defined('ABORT_AFTER_CONFIG')) {
if (!defined('ABORT_AFTER_CONFIG_CANCEL')) {
// hide debugging if not enabled in config.php - we do not want to disclose sensitive info
error_reporting($CFG->debug);
if (NO_DEBUG_DISPLAY) {
// Some parts of Moodle cannot display errors and debug at all.
ini_set('display_errors', '0');
ini_set('log_errors', '1');
} else if (empty($CFG->debugdisplay)) {
ini_set('display_errors', '0');
ini_set('log_errors', '1');
} else {
ini_set('display_errors', '1');
}
require_once("$CFG->dirroot/lib/configonlylib.php");
return;
}
}
// Early profiling start, based exclusively on config.php $CFG settings
if (!empty($CFG->earlyprofilingenabled)) {
require_once($CFG->libdir . '/xhprof/xhprof_moodle.php');
profiling_start();
}
/**
* Database connection. Used for all access to the database.
* @global moodle_database $DB
* @name $DB
*/
global $DB;
/**
* Moodle's wrapper round PHP's $_SESSION.
*
* @global object $SESSION
* @name $SESSION
*/
global $SESSION;
/**
* Holds the user table record for the current user. Will be the 'guest'
* user record for people who are not logged in.
*
* $USER is stored in the session.
*
* Items found in the user record:
* - $USER->email - The user's email address.
* - $USER->id - The unique integer identified of this user in the 'user' table.
* - $USER->email - The user's email address.
* - $USER->firstname - The user's first name.
* - $USER->lastname - The user's last name.
* - $USER->username - The user's login username.
* - $USER->secret - The user's ?.
* - $USER->lang - The user's language choice.
*
* @global object $USER
* @name $USER
*/
global $USER;
/**
* Frontpage course record
*/
global $SITE;
/**
* A central store of information about the current page we are
* generating in response to the user's request.
*
* @global moodle_page $PAGE
* @name $PAGE
*/
global $PAGE;
/**
* The current course. An alias for $PAGE->course.
* @global object $COURSE
* @name $COURSE
*/
global $COURSE;
/**
* $OUTPUT is an instance of core_renderer or one of its subclasses. Use
* it to generate HTML for output.
*
* $OUTPUT is initialised the first time it is used. See {@link bootstrap_renderer}
* for the magic that does that. After $OUTPUT has been initialised, any attempt
* to change something that affects the current theme ($PAGE->course, logged in use,
* httpsrequried ... will result in an exception.)
*
* Please note the $OUTPUT is replacing the old global $THEME object.
*
* @global object $OUTPUT
* @name $OUTPUT
*/
global $OUTPUT;
/**
* Full script path including all params, slash arguments, scheme and host.
*
* Note: Do NOT use for getting of current page URL or detection of https,
* instead use $PAGE->url or is_https().
*
* @global string $FULLME
* @name $FULLME
*/
global $FULLME;
/**
* Script path including query string and slash arguments without host.
* @global string $ME
* @name $ME
*/
global $ME;
/**
* $FULLME without slasharguments and query string.
* @global string $FULLSCRIPT
* @name $FULLSCRIPT
*/
global $FULLSCRIPT;
/**
* Relative moodle script path '/course/view.php'
* @global string $SCRIPT
* @name $SCRIPT
*/
global $SCRIPT;
// The httpswwwroot has been deprecated, we keep it as an alias for backwards compatibility with plugins only.
$CFG->httpswwwroot = $CFG->wwwroot;
require_once($CFG->libdir .'/setuplib.php'); // Functions that MUST be loaded first
if (NO_OUTPUT_BUFFERING) {
// we have to call this always before starting session because it discards headers!
disable_output_buffering();
}
// Increase memory limits if possible
raise_memory_limit(MEMORY_STANDARD);
// Time to start counting
init_performance_info();
// Put $OUTPUT in place, so errors can be displayed.
$OUTPUT = new bootstrap_renderer();
// set handler for uncaught exceptions - equivalent to print_error() call
if (!PHPUNIT_TEST or PHPUNIT_UTIL) {
set_exception_handler('default_exception_handler');
set_error_handler('default_error_handler', E_ALL | E_STRICT);
}
// Acceptance tests needs special output to capture the errors,
// but not necessary for behat CLI command and init script.
if (defined('BEHAT_SITE_RUNNING') && !defined('BEHAT_TEST') && !defined('BEHAT_UTIL')) {
require_once(__DIR__ . '/behat/lib.php');
set_error_handler('behat_error_handler', E_ALL | E_STRICT);
}
if (defined('WS_SERVER') && WS_SERVER) {
require_once($CFG->dirroot . '/webservice/lib.php');
set_exception_handler('early_ws_exception_handler');
}
// If there are any errors in the standard libraries we want to know!
error_reporting(E_ALL | E_STRICT);
// Just say no to link prefetching (Moz prefetching, Google Web Accelerator, others)
// http://www.google.com/webmasters/faq.html#prefetchblock
if (!empty($_SERVER['HTTP_X_moz']) && $_SERVER['HTTP_X_moz'] === 'prefetch'){
header($_SERVER['SERVER_PROTOCOL'] . ' 404 Prefetch Forbidden');
echo('Prefetch request forbidden.');
exit(1);
}
//point pear include path to moodles lib/pear so that includes and requires will search there for files before anywhere else
//the problem is that we need specific version of quickforms and hacked excel files :-(
ini_set('include_path', $CFG->libdir.'/pear' . PATH_SEPARATOR . ini_get('include_path'));
// Register our classloader, in theory somebody might want to replace it to load other hacked core classes.
if (defined('COMPONENT_CLASSLOADER')) {
spl_autoload_register(COMPONENT_CLASSLOADER);
} else {
spl_autoload_register('core_component::classloader');
}
// Remember the default PHP timezone, we will need it later.
core_date::store_default_php_timezone();
// Load up standard libraries
require_once($CFG->libdir .'/filterlib.php'); // Functions for filtering test as it is output
require_once($CFG->libdir .'/ajax/ajaxlib.php'); // Functions for managing our use of JavaScript and YUI
require_once($CFG->libdir .'/weblib.php'); // Functions relating to HTTP and content
require_once($CFG->libdir .'/outputlib.php'); // Functions for generating output
require_once($CFG->libdir .'/navigationlib.php'); // Class for generating Navigation structure
require_once($CFG->libdir .'/dmllib.php'); // Database access
require_once($CFG->libdir .'/datalib.php'); // Legacy lib with a big-mix of functions.
require_once($CFG->libdir .'/accesslib.php'); // Access control functions
require_once($CFG->libdir .'/deprecatedlib.php'); // Deprecated functions included for backward compatibility
require_once($CFG->libdir .'/moodlelib.php'); // Other general-purpose functions
require_once($CFG->libdir .'/enrollib.php'); // Enrolment related functions
require_once($CFG->libdir .'/pagelib.php'); // Library that defines the moodle_page class, used for $PAGE
require_once($CFG->libdir .'/blocklib.php'); // Library for controlling blocks
require_once($CFG->libdir .'/grouplib.php'); // Groups functions
require_once($CFG->libdir .'/sessionlib.php'); // All session and cookie related stuff
require_once($CFG->libdir .'/editorlib.php'); // All text editor related functions and classes
require_once($CFG->libdir .'/messagelib.php'); // Messagelib functions
require_once($CFG->libdir .'/modinfolib.php'); // Cached information on course-module instances
require_once($CFG->dirroot.'/cache/lib.php'); // Cache API
// make sure PHP is not severly misconfigured
setup_validate_php_configuration();
// Connect to the database
setup_DB();
if (PHPUNIT_TEST and !PHPUNIT_UTIL) {
// Make sure tests do not run in parallel.
$suffix = '';
if (phpunit_util::is_in_isolated_process()) {
$suffix = '.isolated';
}
test_lock::acquire('phpunit', $suffix);
$dbhash = null;
try {
if ($dbhash = $DB->get_field('config', 'value', array('name'=>'phpunittest'))) {
// reset DB tables
phpunit_util::reset_database();
}
} catch (Exception $e) {
if ($dbhash) {
// we ned to reinit if reset fails
$DB->set_field('config', 'value', 'na', array('name'=>'phpunittest'));
}
}
unset($dbhash);
}
// Load up any configuration from the config table or MUC cache.
if (PHPUNIT_TEST) {
phpunit_util::initialise_cfg();
} else {
initialise_cfg();
}
if (isset($CFG->debug)) {
$CFG->debug = (int)$CFG->debug;
error_reporting($CFG->debug);
} else {
$CFG->debug = 0;
}
$CFG->debugdeveloper = (($CFG->debug & DEBUG_DEVELOPER) === DEBUG_DEVELOPER);
// Find out if PHP configured to display warnings,
// this is a security problem because some moodle scripts may
// disclose sensitive information.
if (ini_get_bool('display_errors')) {
define('WARN_DISPLAY_ERRORS_ENABLED', true);
}
// If we want to display Moodle errors, then try and set PHP errors to match.
if (!isset($CFG->debugdisplay)) {
// Keep it "as is" during installation.
} else if (NO_DEBUG_DISPLAY) {
// Some parts of Moodle cannot display errors and debug at all.
ini_set('display_errors', '0');
ini_set('log_errors', '1');
} else if (empty($CFG->debugdisplay)) {
ini_set('display_errors', '0');
ini_set('log_errors', '1');
} else {
// This is very problematic in XHTML strict mode!
ini_set('display_errors', '1');
}
// Register our shutdown manager, do NOT use register_shutdown_function().
core_shutdown_manager::initialize();
// Verify upgrade is not running unless we are in a script that needs to execute in any case
if (!defined('NO_UPGRADE_CHECK') and isset($CFG->upgraderunning)) {
if ($CFG->upgraderunning < time()) {
unset_config('upgraderunning');
} else {
print_error('upgraderunning');
}
}
// enable circular reference collector in PHP 5.3,
// it helps a lot when using large complex OOP structures such as in amos or gradebook
if (function_exists('gc_enable')) {
gc_enable();
}
// detect unsupported upgrade jump as soon as possible - do not change anything, do not use system functions
if (!empty($CFG->version) and $CFG->version < 2007101509) {
print_error('upgraderequires19', 'error');
die;
}
// Calculate and set $CFG->ostype to be used everywhere. Possible values are:
// - WINDOWS: for any Windows flavour.
// - UNIX: for the rest
// Also, $CFG->os can continue being used if more specialization is required
if (stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin')) {
$CFG->ostype = 'WINDOWS';
} else {
$CFG->ostype = 'UNIX';
}
$CFG->os = PHP_OS;
// Configure ampersands in URLs
ini_set('arg_separator.output', '&');
// Work around for a PHP bug see MDL-11237
ini_set('pcre.backtrack_limit', 20971520); // 20 MB
// Work around for PHP7 bug #70110. See MDL-52475 .
if (ini_get('pcre.jit')) {
ini_set('pcre.jit', 0);
}
// Set PHP default timezone to server timezone.
core_date::set_default_server_timezone();
// Location of standard files
$CFG->wordlist = $CFG->libdir .'/wordlist.txt';
$CFG->moddata = 'moddata';
// neutralise nasty chars in PHP_SELF
if (isset($_SERVER['PHP_SELF'])) {
$phppos = strpos($_SERVER['PHP_SELF'], '.php');
if ($phppos !== false) {
$_SERVER['PHP_SELF'] = substr($_SERVER['PHP_SELF'], 0, $phppos+4);
}
unset($phppos);
}
// initialise ME's - this must be done BEFORE starting of session!
initialise_fullme();
// define SYSCONTEXTID in config.php if you want to save some queries,
// after install it must match the system context record id.
if (!defined('SYSCONTEXTID')) {
context_system::instance();
}
// Defining the site - aka frontpage course
try {
$SITE = get_site();
} catch (moodle_exception $e) {
$SITE = null;
if (empty($CFG->version)) {
$SITE = new stdClass();
$SITE->id = 1;
$SITE->shortname = null;
} else {
throw $e;
}
}
// And the 'default' course - this will usually get reset later in require_login() etc.
$COURSE = clone($SITE);
// Id of the frontpage course.
define('SITEID', $SITE->id);
// init session prevention flag - this is defined on pages that do not want session
if (CLI_SCRIPT) {
// no sessions in CLI scripts possible
define('NO_MOODLE_COOKIES', true);
} else if (WS_SERVER) {
// No sessions possible in web services.
define('NO_MOODLE_COOKIES', true);
} else if (!defined('NO_MOODLE_COOKIES')) {
if (empty($CFG->version) or $CFG->version < 2009011900) {
// no session before sessions table gets created
define('NO_MOODLE_COOKIES', true);
} else if (CLI_SCRIPT) {
// CLI scripts can not have session
define('NO_MOODLE_COOKIES', true);
} else {
define('NO_MOODLE_COOKIES', false);
}
}
// Start session and prepare global $SESSION, $USER.
if (empty($CFG->sessiontimeout)) {
$CFG->sessiontimeout = 8 * 60 * 60;
}
\core\session\manager::start();
// Set default content type and encoding, developers are still required to use
// echo $OUTPUT->header() everywhere, anything that gets set later should override these headers.
// This is intended to mitigate some security problems.
if (AJAX_SCRIPT) {
if (!core_useragent::supports_json_contenttype()) {
// Some bloody old IE.
@header('Content-type: text/plain; charset=utf-8');
@header('X-Content-Type-Options: nosniff');
} else if (!empty($_FILES)) {
// Some ajax code may have problems with json and file uploads.
@header('Content-type: text/plain; charset=utf-8');
} else {
@header('Content-type: application/json; charset=utf-8');
}
} else if (!CLI_SCRIPT) {
@header('Content-type: text/html; charset=utf-8');
}
// Initialise some variables that are supposed to be set in config.php only.
if (!isset($CFG->filelifetime)) {
$CFG->filelifetime = 60*60*6;
}
// Late profiling, only happening if early one wasn't started
if (!empty($CFG->profilingenabled)) {
require_once($CFG->libdir . '/xhprof/xhprof_moodle.php');
profiling_start();
}
// Hack to get around max_input_vars restrictions,
// we need to do this after session init to have some basic DDoS protection.
workaround_max_input_vars();
// Process theme change in the URL.
if (!empty($CFG->allowthemechangeonurl) and !empty($_GET['theme'])) {
// we have to use _GET directly because we do not want this to interfere with _POST
$urlthemename = optional_param('theme', '', PARAM_PLUGIN);
try {
$themeconfig = theme_config::load($urlthemename);
// Makes sure the theme can be loaded without errors.
if ($themeconfig->name === $urlthemename) {
$SESSION->theme = $urlthemename;
} else {
unset($SESSION->theme);
}
unset($themeconfig);
unset($urlthemename);
} catch (Exception $e) {
debugging('Failed to set the theme from the URL.', DEBUG_DEVELOPER, $e->getTrace());
}
}
unset($urlthemename);
// Ensure a valid theme is set.
if (!isset($CFG->theme)) {
$CFG->theme = 'boost';
}
// Set language/locale of printed times. If user has chosen a language that
// that is different from the site language, then use the locale specified
// in the language file. Otherwise, if the admin hasn't specified a locale
// then use the one from the default language. Otherwise (and this is the
// majority of cases), use the stored locale specified by admin.
// note: do not accept lang parameter from POST
if (isset($_GET['lang']) and ($lang = optional_param('lang', '', PARAM_SAFEDIR))) {
if (get_string_manager()->translation_exists($lang, false)) {
$SESSION->lang = $lang;
}
}
unset($lang);
// PARAM_SAFEDIR used instead of PARAM_LANG because using PARAM_LANG results
// in an empty string being returned when a non-existant language is specified,
// which would make it necessary to log out to undo the forcelang setting.
// With PARAM_SAFEDIR, it's possible to specify ?forcelang=none to drop the forcelang effect.
if ($forcelang = optional_param('forcelang', '', PARAM_SAFEDIR)) {
if (isloggedin()
&& get_string_manager()->translation_exists($forcelang, false)
&& has_capability('moodle/site:forcelanguage', context_system::instance())) {
$SESSION->forcelang = $forcelang;
} else if (isset($SESSION->forcelang)) {
unset($SESSION->forcelang);
}
}
unset($forcelang);
setup_lang_from_browser();
if (empty($CFG->lang)) {
if (empty($SESSION->lang)) {
$CFG->lang = 'en';
} else {
$CFG->lang = $SESSION->lang;
}
}
// Set the default site locale, a lot of the stuff may depend on this
// it is definitely too late to call this first in require_login()!
moodle_setlocale();
// Create the $PAGE global - this marks the PAGE and OUTPUT fully initialised, this MUST be done at the end of setup!
if (!empty($CFG->moodlepageclass)) {
if (!empty($CFG->moodlepageclassfile)) {
require_once($CFG->moodlepageclassfile);
}
$classname = $CFG->moodlepageclass;
} else {
$classname = 'moodle_page';
}
$PAGE = new $classname();
unset($classname);
if (!empty($CFG->debugvalidators) and !empty($CFG->guestloginbutton)) {
if ($CFG->theme == 'standard') { // Temporary measure to help with XHTML validation
if (isset($_SERVER['HTTP_USER_AGENT']) and empty($USER->id)) { // Allow W3CValidator in as user called w3cvalidator (or guest)
if ((strpos($_SERVER['HTTP_USER_AGENT'], 'W3C_Validator') !== false) or
(strpos($_SERVER['HTTP_USER_AGENT'], 'Cynthia') !== false )) {
if ($user = get_complete_user_data("username", "w3cvalidator")) {
$user->ignoresesskey = true;
} else {
$user = guest_user();
}
\core\session\manager::set_user($user);
}
}
}
}
// Apache log integration. In apache conf file one can use ${MOODULEUSER}n in
// LogFormat to get the current logged in username in moodle.
// Alternatvely for other web servers a header X-MOODLEUSER can be set which
// can be using in the logfile and stripped out if needed.
set_access_log_user();
// Ensure the urlrewriteclass is setup correctly (to avoid crippling site).
if (isset($CFG->urlrewriteclass)) {
if (!class_exists($CFG->urlrewriteclass)) {
debugging("urlrewriteclass {$CFG->urlrewriteclass} was not found, disabling.");
unset($CFG->urlrewriteclass);
} else if (!in_array('core\output\url_rewriter', class_implements($CFG->urlrewriteclass))) {
debugging("{$CFG->urlrewriteclass} does not implement core\output\url_rewriter, disabling.", DEBUG_DEVELOPER);
unset($CFG->urlrewriteclass);
}
}
// Use a custom script replacement if one exists
if (!empty($CFG->customscripts)) {
if (($customscript = custom_script_path()) !== false) {
require ($customscript);
}
}
if (PHPUNIT_TEST) {
// no ip blocking, these are CLI only
} else if (CLI_SCRIPT and !defined('WEB_CRON_EMULATED_CLI')) {
// no ip blocking
} else if (!empty($CFG->allowbeforeblock)) { // allowed list processed before blocked list?
// in this case, ip in allowed list will be performed first
// for example, client IP is 192.168.1.1
// 192.168 subnet is an entry in allowed list
// 192.168.1.1 is banned in blocked list
// This ip will be banned finally
if (!empty($CFG->allowedip)) {
if (!remoteip_in_list($CFG->allowedip)) {
die(get_string('ipblocked', 'admin'));
}
}
// need further check, client ip may a part of
// allowed subnet, but a IP address are listed
// in blocked list.
if (!empty($CFG->blockedip)) {
if (remoteip_in_list($CFG->blockedip)) {
die(get_string('ipblocked', 'admin'));
}
}
} else {
// in this case, IPs in blocked list will be performed first
// for example, client IP is 192.168.1.1
// 192.168 subnet is an entry in blocked list
// 192.168.1.1 is allowed in allowed list
// This ip will be allowed finally
if (!empty($CFG->blockedip)) {
if (remoteip_in_list($CFG->blockedip)) {
// if the allowed ip list is not empty
// IPs are not included in the allowed list will be
// blocked too
if (!empty($CFG->allowedip)) {
if (!remoteip_in_list($CFG->allowedip)) {
die(get_string('ipblocked', 'admin'));
}
} else {
die(get_string('ipblocked', 'admin'));
}
}
}
// if blocked list is null
// allowed list should be tested
if(!empty($CFG->allowedip)) {
if (!remoteip_in_list($CFG->allowedip)) {
die(get_string('ipblocked', 'admin'));
}
}
}
// // try to detect IE6 and prevent gzip because it is extremely buggy browser
if (!empty($_SERVER['HTTP_USER_AGENT']) and strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE 6') !== false) {
ini_set('zlib.output_compression', 'Off');
if (function_exists('apache_setenv')) {
apache_setenv('no-gzip', 1);
}
}
// Switch to CLI maintenance mode if required, we need to do it here after all the settings are initialised.
if (isset($CFG->maintenance_later) and $CFG->maintenance_later <= time()) {
if (!file_exists("$CFG->dataroot/climaintenance.html")) {
require_once("$CFG->libdir/adminlib.php");
enable_cli_maintenance_mode();
}
unset_config('maintenance_later');
if (AJAX_SCRIPT) {
die;
} else if (!CLI_SCRIPT) {
redirect(new moodle_url('/'));
}
}
// Add behat_shutdown_function to shutdown manager, so we can capture php errors,
// but not necessary for behat CLI command as it's being captured by behat process.
if (defined('BEHAT_SITE_RUNNING') && !defined('BEHAT_TEST')) {
core_shutdown_manager::register_function('behat_shutdown_function');
}
// note: we can not block non utf-8 installations here, because empty mysql database
// might be converted to utf-8 in admin/index.php during installation
// this is a funny trick to make Eclipse believe that $OUTPUT and other globals
// contains an instance of core_renderer, etc. which in turn fixes autocompletion ;-)
if (false) {
$DB = new moodle_database();
$OUTPUT = new core_renderer(null, null);
$PAGE = new moodle_page();
}
// Allow plugins to callback as soon possible after setup.php is loaded.
$pluginswithfunction = get_plugins_with_function('after_config', 'lib.php');
foreach ($pluginswithfunction as $plugins) {
foreach ($plugins as $function) {
try {
$function();
} catch (Throwable $e) {
debugging("Exception calling '$function'", DEBUG_DEVELOPER, $e->getTrace());
}
}
}