aboutsummaryrefslogtreecommitdiff
path: root/engine/start.php
blob: 3424c54de79a78dc52203e2dc44fd8ccbe81ba45 (plain)
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
140
141
142
143
144
145
146
147
<?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
	 * @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
			throw new InstallationException("Elgg could not load its main library.");
		}
		
		if (!@include_once(dirname(__FILE__) . "/lib/system_log.php")) {		// Logging library
			throw new InstallationException("Error in installation: could not load the System Log library.");
		}
	
		if (!@include_once(dirname(__FILE__) . "/lib/export.php")) {		// Export library
			throw new InstallationException("Error in installation: could not load the Export library.");
		}
		
		if (!@include_once(dirname(__FILE__) . "/lib/languages.php")) {		// Main Elgg library
			throw new InstallationException("Elgg could not load its main library.");
		}
		
	/**
	 * 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()) {	// 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");
			}	

			if (!@include_once(dirname(__FILE__) . "/lib/sessions.php")) {
				throw new InstallationException("Elgg could not load the Sessions library");
			}	

		// We don't want to load or reload these files
	
			$file_exceptions = array(
										'.','..',
										'.svn',
										'CVS','cvs',
										'settings.php','settings.example.php','languages.php','exceptions.php','elgglib.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);
	
		// 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}");
			}
			
		// Determine light mode
			$lm = strtolower(get_input('lightmode'));
			if ($lm == 'true') $lightmode = true;
			
		// Set default config
			set_default_config();
			
		// Load plugins, if we're not in light mode
			if (!$lightmode)
				load_plugins();
		
		} else {	// End portion for sanitised installs only
			
			throw new InstallationException("Once you've corrected any configuration issues, press reload to try again.");
			
		}
		
		// Autodetect some default configuration settings
			set_default_config();
		// Trigger events
			trigger_elgg_event('boot', 'system');
		// Forward if we haven't been installed
			if ((!is_installed() || !is_db_installed()) && !substr_count($_SERVER["PHP_SELF"],"install.php")) {
					header("Location: install.php");
					exit;
			}

		// Trigger events
			if (!substr_count($_SERVER["PHP_SELF"],"install.php") &&
				!substr_count($_SERVER["PHP_SELF"],"setup.php") &&
				!$lightmode) {
				// 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");
				}
			}

?>