2 /************************************************************************
3 * MXChange v0.2.1 Start: 06/26/2004 *
4 * =============== Last change: 07/01/2005 *
6 * -------------------------------------------------------------------- *
7 * File : load_extensions.php *
8 * -------------------------------------------------------------------- *
9 * Short description : Load all extensions *
10 * -------------------------------------------------------------------- *
11 * Kurzbeschreibung : Alle Erweiterungen laden *
12 * -------------------------------------------------------------------- *
14 * -------------------------------------------------------------------- *
15 * Copyright (c) 2003 - 2008 by Roland Haeder *
16 * For more information visit: http://www.mxchange.org *
18 * This program is free software; you can redistribute it and/or modify *
19 * it under the terms of the GNU General Public License as published by *
20 * the Free Software Foundation; either version 2 of the License, or *
21 * (at your option) any later version. *
23 * This program is distributed in the hope that it will be useful, *
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
26 * GNU General Public License for more details. *
28 * You should have received a copy of the GNU General Public License *
29 * along with this program; if not, write to the Free Software *
30 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *
32 ************************************************************************/
34 // Some security stuff...
35 if (!defined('__SECURITY')) {
36 $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
41 global $EXT_CSS_FILES;
42 $EXT_CSS_FILES = array();
45 // Skip loading extensions
46 if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return;
48 // Load default sql_patches extension if present
49 if (FILE_READABLE(PATH."inc/extensions/ext-sql_patches.php")) {
52 require_once(PATH."inc/extensions/ext-sql_patches.php");
53 $cacheArray['active_extensions'] = array('sql_patches' => 'Y'); // KEEP THIS ALWAYS ACTIVE!
55 // Initialize array for "always keep active extensions"
56 $cacheArray['active_extensions'] = array();
62 if (EXT_IS_ACTIVE("cache")) {
63 // Load cache extension alone
64 include_once(PATH."inc/libs/cache_functions.php");
66 include_once(PATH."inc/extensions/ext-cache.php");
67 switch($cacheInstance->cache_file("extensions", true)) {
68 case true : $cacheMode = "load"; break;
69 case false: $cacheMode = "init"; break;
72 // Do not recreate cache file when it's switched off!
74 // If we need to init the cache init it now
75 if ($cacheMode == "init") {
77 $cacheInstance->cache_init("EXTENSIONS");
79 if ($_CONFIG['cache_exts'] == "N") $cacheMode = "skip";
82 // Cache extension not active
87 if ($cacheMode == "load") {
91 // Re-initialize handler
92 $cacheInstance->cache_file("extensions", true);
94 // Load extension data from cache file
95 $EXT_DUMMY = $cacheInstance->cache_load();
97 // Begin with the cache preparation of extensions
99 foreach ($EXT_DUMMY['ext_name'] as $k => $name) {
100 // Load functions file
101 if ($EXT_DUMMY['ext_funcs'][$k] == "Y") {
102 require_once(PATH."inc/libs/".$name."_functions.php");
105 // Load Language file
106 if ($EXT_DUMMY['ext_lang'][$k] == "Y") {
107 $INC = sprintf("%sinc/language/%s_%s.php", PATH, $name, GET_LANGUAGE());
108 if (FILE_READABLE($INC)) {
115 if ($EXT_DUMMY['ext_css'][$k] == "Y") $EXT_CSS_FILES[] = "".$name.".css";
117 // Load extension file itself
118 if (($EXT_DUMMY['ext_active'][$k] == "Y") || ($EXT_DUMMY['ext_keep'][$k] == "Y") || (IS_ADMIN())) {
119 $EXT_POOL[] = sprintf("%sinc/extensions/ext-%s.php", PATH, $name);
123 $EXT_DUMMY['ext_version'][$name] = $EXT_DUMMY['ext_version'][$k];
124 unset($EXT_DUMMY['ext_version'][$k]);
125 // Extension is active
126 $EXT_DUMMY['ext_active'][$name] = $EXT_DUMMY['ext_active'][$k];
127 unset($EXT_DUMMY['ext_active'][$k]);
129 $EXT_DUMMY['ext_menu'][$name] = $EXT_DUMMY['ext_menu'][$k];
130 unset($EXT_DUMMY['ext_menu'][$k]);
132 $EXT_DUMMY['ext_id'][$name] = $EXT_DUMMY['ext_id'][$k];
133 $id = $EXT_DUMMY['ext_id'][$name];
134 unset($EXT_DUMMY['ext_id'][$k]);
137 $EXT_NAMES[$id] = $name;
139 // Mark it as active extension
140 $cacheArray['active_extensions']['$name'] = $EXT_DUMMY['ext_keep'][$k];
141 unset($EXT_DUMMY['ext_keep'][$k]);
143 // Remove unneccessary data from memory
144 unset($EXT_DUMMY['ext_lang'][$k]);
145 unset($EXT_DUMMY['ext_css'][$k]);
146 unset($EXT_DUMMY['ext_funcs'][$k]);
149 // Write dummy array back
150 $EXT_DUMMY['ext_name'] = $EXT_NAMES;
154 $cacheInstance->cache_close();
156 // Loading cache is done so let's free some memory!
157 unset($EXT_DUMMY['ext_lang']);
158 unset($EXT_DUMMY['ext_keep']);
159 unset($EXT_DUMMY['ext_css']);
160 unset($EXT_DUMMY['ext_funcs']);
161 $cacheArray['extensions'] = $EXT_DUMMY;
164 // No database load needed
165 $res_ext_crt = false;
167 // Load more cache files (like admins)
168 require_once(PATH."inc/load_cache.php");
170 // Load all extension files
171 foreach ($EXT_POOL as $inc) {
178 // If current user is not admin load only activated extensions. But load
179 // them all if we are going to init the cache files. The admin shall use
180 // every available extension for testing purposes.
181 if ((!IS_ADMIN()) && ($cacheMode != "init")) $ADD = " WHERE ext_active='Y'";
183 if (GET_EXT_VERSION("sql_patches") >= "0.0.6") {
184 // Query with CSS file from DB
185 $res_ext_crt = SQL_QUERY("SELECT id, ext_name, ext_lang_file, ext_has_css, ext_active, ext_version
186 FROM "._MYSQL_PREFIX."_extensions".$ADD."
187 ORDER BY ext_name", __FILE__, __LINE__);
189 // Old obsolete query string
190 $res_ext_crt = SQL_QUERY("SELECT id, ext_name, ext_lang_file, ext_name, ext_active, ext_version
191 FROM "._MYSQL_PREFIX."_extensions".$ADD."
192 ORDER BY ext_name", __FILE__, __LINE__);
196 // Array for removed but not uninstalled extensions
199 // At least one found?
200 if ((SQL_NUMROWS($res_ext_crt) > 0) && ((($cacheMode == "init") && ($CSS != "1") && ($CSS != "-1")) || ($cacheMode == "no"))) {
201 // Load theme management
202 require_once(PATH."inc/theme-manager.php");
204 // Extensions are registered so we load them
205 while (list($EXT_ID, $name, $lang, $css, $active, $version) = SQL_FETCHROW($res_ext_crt)) {
208 if (MODULE_HAS_MENU($name, true)) {
213 $file1 = sprintf("%sinc/extensions/ext-%s.php", PATH, $name);
214 $file2 = $file1; $EXT_CSS = "N"; $EXT_ALWAYS_ACTIVE = "N";
216 // Special functions file
217 $file3 = sprintf("%sinc/libs/%s_functions.php", PATH, $name);
219 // Does the extension file exists?
220 if (FILE_READABLE($file1)) {
221 // If there's no language file specified we don't need to load one... ;-)
223 // Create language file
224 $file2 = sprintf("%sinc/language/%s_%s.php", PATH, $lang, GET_LANGUAGE());
227 if (FILE_READABLE($file3)) {
228 // Special functions file
230 require_once($file3);
232 // Don't load functions file
236 // Do we need a language file?
237 if (($file1 != $file2) && (FILE_READABLE($file2))) {
238 // Load language file
242 // Don't load language file
247 if ($name != "sql_patches") {
248 // Load extension's file
249 include_once($file1);
251 // KEEP sql_patches ALWAYS ACTIVE!
252 $EXT_ALWAYS_ACTIVE = "Y";
256 $CSS_FILE = sprintf("%stheme/%s/css/%s.css", PATH, GET_CURR_THEME(), $name);
257 if (FILE_READABLE($CSS_FILE)) {
258 // CSS file for extension was found (use only relative path for now!)
259 $EXT_CSS_FILES[] = $name.".css";
261 // Don't load CSS file
267 if ($cacheMode == "init") {
268 $cacheInstance->add_row(array(
274 'ext_funcs' => $funcs,
275 'ext_active' => $active,
276 'ext_version' => $version,
277 'ext_keep' => $EXT_ALWAYS_ACTIVE,
279 } elseif ($cacheMode == "no") {
280 // Remember this value for later usage
281 $cacheArray['active_extensions'][$name] = $EXT_ALWAYS_ACTIVE;
283 } elseif (!FILE_READABLE($file1)) {
284 // Deleted extension file so we mark it for removal from DB
289 if ($cacheMode == "init") {
291 $cacheInstance->cache_close();
293 // Load more cache files (like admins)
294 require_once(PATH."inc/load_cache.php");
298 SQL_FREERESULT($res_ext_crt);
301 // Load include files if found
302 if (!empty($INC_POOL[0])) {
303 foreach ($INC_POOL as $inc) {
311 // Uninstall extensions that are no longer in our system
312 if (!empty($DEL[0])) {
313 // Remove extensions from two tables: extension registry and tasks table
314 foreach ($DEL as $name) {
315 // First remove entry from extensions table
316 SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
317 array($name), __FILE__, __LINE__);
319 // Remove (maybe?) found tasks (main task and possible updates
320 SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE subject LIKE '[%s:] %' AND (task_type='EXTENSION' OR task_type='EXTENSION_UPDATE')",
321 array($name), __FILE__, __LINE__);
324 // I think it's not neccessary to run the optimization function here
325 // because we didn't delete so much data from database. Can you aggree?