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<?php
/**
* Elgg engine bootstrapper
* Loads the various elements of the Elgg engine
*
* @package Elgg
* @subpackage Core
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
* @author Curverider Ltd
* @copyright Curverider Ltd 2008-2009
* @link http://elgg.org/
*/
/**
* Load important prerequisites
*/
if (!@include_once(dirname(__FILE__) . "/lib/exceptions.php")) { // Exceptions
echo "Error in installation: could not load the Exceptions library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/elgglib.php")) { // Main Elgg library
echo "Elgg could not load its main library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/access.php")) { // Access library
echo "Error in installation: could not load the Access library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/system_log.php")) { // Logging library
echo "Error in installation: could not load the System Log library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/export.php")) { // Export library
echo "Error in installation: could not load the Export library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/sessions.php")) {
echo ("Error in installation: Elgg could not load the Sessions library");
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/languages.php")) { // Languages library
echo "Error in installation: could not load the languages library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/input.php")) { // Input library
echo "Error in installation: could not load the input library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/install.php")) { // Installation library
echo "Error in installation: could not load the installation library.";
exit;
}
if (!@include_once(dirname(__FILE__) . "/lib/cache.php")) { // Installation library
echo "Error in installation: could not load the cache library.";
exit;
}
// Use fallback view until sanitised
$oldview = get_input('view');
set_input('view', 'failsafe');
/**
* Set light mode default
*/
$lightmode = false;
/**
* Establish handlers
*/
// Register the error handler
set_error_handler('__elgg_php_error_handler');
set_exception_handler('__elgg_php_exception_handler');
/**
* If there are basic issues with the way the installation is formed, don't bother trying
* to load any more files
*/
if ($sanitised = sanitised()) { // Begin portion for sanitised installs only
/**
* Load the system settings
*/
if (!@include_once(dirname(__FILE__) . "/settings.php")) // Global settings
throw new InstallationException("Elgg could not load the settings file.");
/**
* Load and initialise the database
*/
if (!@include_once(dirname(__FILE__) . "/lib/database.php")) // Database connection
throw new InstallationException("Elgg could not load the main Elgg database library.");
/**
* Load the remaining libraries from /lib/ in alphabetical order,
* except for a few exceptions
*/
if (!@include_once(dirname(__FILE__) . "/lib/actions.php")) {
throw new InstallationException("Elgg could not load the Actions library");
}
// We don't want to load or reload these files
$file_exceptions = array(
'.','..',
'.DS_Store',
'Thumbs.db',
'.svn',
'CVS','cvs',
'settings.php','settings.example.php','languages.php','exceptions.php','elgglib.php','access.php','database.php','actions.php','sessions.php'
);
// Get the list of files to include, and alphabetically sort them
$files = get_library_files(dirname(__FILE__) . "/lib",$file_exceptions);
asort($files);
// Get config
global $CONFIG;
// Include them
foreach($files as $file) {
if (isset($CONFIG->debug) && $CONFIG->debug) error_log("Loading $file...");
if (!@include_once($file))
throw new InstallationException("Could not load {$file}");
}
} else { // End portion for sanitised installs only
throw new InstallationException(elgg_echo('installation:error:configuration'));
}
// Autodetect some default configuration settings
set_default_config();
// Trigger events
trigger_elgg_event('boot', 'system');
// Load plugins
$installed = is_installed();
$db_installed = is_db_installed();
// Determine light mode
$lm = strtolower(get_input('lightmode'));
if ($lm == 'true') $lightmode = true;
// Load plugins, if we're not in light mode
if (($installed) && ($db_installed) && ($sanitised) && (!$lightmode)) {
load_plugins();
trigger_elgg_event('plugins_boot', 'system');
}
// Forward if we haven't been installed
if ((!$installed || !$db_installed) && !substr_count($_SERVER["PHP_SELF"],"install.php") && !substr_count($_SERVER["PHP_SELF"],"css.php") && !substr_count($_SERVER["PHP_SELF"],"action_handler.php")) {
header("Location: install.php");
exit;
}
// Trigger events
if (!substr_count($_SERVER["PHP_SELF"],"install.php") &&
!substr_count($_SERVER["PHP_SELF"],"setup.php") &&
!$lightmode
&& !(defined('upgrading') && upgrading == 'upgrading')) {
// If default settings haven't been installed, forward to the default settings page
trigger_elgg_event('init', 'system');
//if (!datalist_get('default_settings')) {
//forward("setup.php");
//}
}
// System booted, return to normal view
set_input('view', $oldview);
if (empty($oldview)) {
if (empty($CONFIG->view))
$oldview = 'default';
else
$oldview = $CONFIG->view;
}
$lastcached = datalist_get('simplecache_'.$oldview);
if ($lastcached < (time() - (86400 * 7))) {
elgg_view_regenerate_simplecache();
$lastcached = time();
datalist_set('simplecache_'.$oldview,$lastcached);
}
$CONFIG->lastcache = $lastcached;
?>
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