1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
<?php
/**
* Bootstraps and starts the Elgg engine.
*
* This file loads the full Elgg engine, checks the installation
* state, then emits a series of events to finish booting Elgg:
* - {@elgg_event boot system}
* - {@elgg_event plugins_boot system}
* - {@elgg_event init system}
*
* If Elgg is fully uninstalled, the browser will be redirected to an
* installation page.
*
* @see install.php
* @package Elgg.Core
* @subpackage Core
*/
/*
* No settings means a fresh install
*/
if (!file_exists(dirname(__FILE__) . '/settings.php')) {
header("Location: install.php");
exit;
}
/**
* The time with microseconds when the Elgg engine was started.
*
* @global float
*/
global $START_MICROTIME;
$START_MICROTIME = microtime(true);
/**
* Configuration values.
*
* The $CONFIG global contains configuration values required
* for running Elgg as defined in the settings.php file.
*
* Plugin authors are encouraged to use elgg_get_config() instead of accessing
* the global directly.
*
* @see elgg_get_config()
* @see engine/settings.php
* @global stdClass $CONFIG
*/
global $CONFIG;
if (!isset($CONFIG)) {
$CONFIG = new stdClass;
}
$lib_dir = dirname(__FILE__) . '/lib/';
// Load the bootstrapping library
$path = $lib_dir . 'elgglib.php';
if (!include_once($path)) {
echo "Could not load file '$path'. Please check your Elgg installation for all required files.";
exit;
}
// Load the system settings
if (!include_once(dirname(__FILE__) . "/settings.php")) {
$msg = 'Elgg could not load the settings file. It does not exist or there is a file permissions issue.';
throw new InstallationException($msg);
}
// load the rest of the library files from engine/lib/
$lib_files = array(
'access.php', 'actions.php', 'admin.php', 'annotations.php', 'cache.php',
'calendar.php', 'configuration.php', 'cron.php', 'database.php',
'entities.php', 'export.php', 'extender.php', 'filestore.php', 'group.php',
'input.php', 'languages.php', 'location.php', 'mb_wrapper.php',
'memcache.php', 'metadata.php', 'metastrings.php', 'navigation.php',
'notification.php', 'objects.php', 'opendd.php', 'output.php',
'pagehandler.php', 'pageowner.php', 'pam.php', 'plugins.php',
'private_settings.php', 'relationships.php', 'river.php', 'sessions.php',
'sites.php', 'statistics.php', 'system_log.php', 'tags.php',
'user_settings.php', 'users.php', 'upgrade.php', 'views.php',
'web_services.php', 'widgets.php', 'xml.php', 'xml-rpc.php',
// backward compatibility
'deprecated-1.7.php', 'deprecated-1.8.php',
);
foreach ($lib_files as $file) {
$file = $lib_dir . $file;
elgg_log("Loading $file...");
if (!include_once($file)) {
$msg = "Could not load $file";
throw new InstallationException($msg);
}
}
// Register the error handler
set_error_handler('_elgg_php_error_handler');
set_exception_handler('_elgg_php_exception_handler');
// connect to db
setup_db_connections();
// confirm that the installation completed successfully
verify_installation();
// Autodetect some default configuration settings
set_default_config();
// needs to be set for links in html head
$viewtype = get_input('view', 'default');
$lastcached = datalist_get("simplecache_lastcached_$viewtype");
$CONFIG->lastcache = $lastcached;
// Trigger boot events for core. Plugins can't hook
// into this because they haven't been loaded yet.
elgg_trigger_event('boot', 'system');
// Load the plugins that are active
elgg_load_plugins();
elgg_trigger_event('plugins_boot', 'system');
// Trigger system init event for plugins
elgg_trigger_event('init', 'system');
// Regenerate the simple cache if expired.
// Don't do it on upgrade because upgrade does it itself.
// @todo - move into function and perhaps run off init system event
if (!defined('UPGRADING')) {
$lastupdate = datalist_get("simplecache_lastupdate_$viewtype");
$lastcached = datalist_get("simplecache_lastcached_$viewtype");
if ($lastupdate == 0 || $lastcached < $lastupdate) {
elgg_regenerate_simplecache($viewtype);
$lastcached = datalist_get("simplecache_lastcached_$viewtype");
}
$CONFIG->lastcache = $lastcached;
}
// System loaded and ready
elgg_trigger_event('ready', 'system');
|
