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 (ereg(basename(__FILE__), $_SERVER['PHP_SELF']))
37 $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 ((!mxchange_installed) || (mxchange_installing)) return;
48 // Load default sql_patches extension if present
49 if (file_exists(PATH."inc/extensions/ext-sql_patches.php") && is_readable(PATH."inc/extensions/ext-sql_patches.php"))
53 require_once(PATH."inc/extensions/ext-sql_patches.php");
54 $cacheArray['active_extensions'] = array('sql_patches' => 'Y'); // KEEP THIS ALWAYS ACTIVE!
58 // Initialize array for "always keep active extensions"
59 $cacheArray['active_extensions'] = array();
65 if (EXT_IS_ACTIVE("cache"))
67 // Load cache extension alone
68 include_once(PATH."inc/libs/cache_functions.php");
70 include_once(PATH."inc/extensions/ext-cache.php");
71 switch($cacheInstance->cache_file("extensions", true))
73 case true : $cacheMode = "load"; break;
74 case false: $cacheMode = "init"; break;
77 // Do not recreate cache file when it's switched off!
78 if (($cacheMode == "init") && ($_CONFIG['cache_exts'] == 'N')) $cacheMode = "skip";
81 if ($cacheMode == "load") include(PATH."inc/language/cache_".GET_LANGUAGE().".php");
88 if ($cacheMode == "load")
90 // Load more cache files (like admins)
91 require_once(PATH."inc/load_cache.php");
93 // Re-initialize handler
94 $cacheInstance->cache_file("extensions", true);
96 // Load extension data from cache file
97 $EXT_DUMMY = $cacheInstance->cache_load();
98 foreach ($EXT_DUMMY['ext_name'] as $k=>$name)
100 // Load functions file
101 if ($EXT_DUMMY['ext_funcs'][$k] == 'Y') require_once(PATH."inc/libs/".$name."_functions.php");
103 // Load Language file
104 if ($EXT_DUMMY['ext_lang'][$k] == 'Y')
106 $INC = sprintf(PATH."inc/language/%s_%s.php", $name, GET_LANGUAGE());
107 if (file_exists($INC)) require_once($INC);
111 if ($EXT_DUMMY['ext_css'][$k] == 'Y') $EXT_CSS_FILES[] = "".$name.".css";
113 // Load extension file itself
114 if (($EXT_DUMMY['ext_active'][$k] == 'Y') || ($EXT_DUMMY['ext_keep'][$k] == 'Y') || (IS_ADMIN()))
116 require_once(PATH."inc/extensions/ext-".$name.".php");
119 // Transfer version number and active status
120 $EXT_DUMMY['ext_version'][$name] = $EXT_DUMMY['ext_version'][$k];
121 unset($EXT_DUMMY['ext_version'][$k]);
122 $EXT_DUMMY['ext_active'][$name] = $EXT_DUMMY['ext_active'][$k];
123 unset($EXT_DUMMY['ext_active'][$k]);
124 $EXT_DUMMY['ext_menu'][$name] = $EXT_DUMMY['ext_menu'][$k];
125 unset($EXT_DUMMY['ext_menu'][$k]);
126 $cacheArray['active_extensions']['$name'] = $EXT_DUMMY['ext_keep'][$k];
127 unset($EXT_DUMMY['ext_keep'][$k]);
128 $k2 = $EXT_DUMMY['ext_id'][$k];
129 $EXT_DUMMY['ext_id'][$k2] = $name;
130 if ($k2 != $k) unset($EXT_DUMMY['ext_id'][$k]);
132 // Remove unneccessary data from memory
133 unset($EXT_DUMMY['ext_lang'][$k]);
134 unset($EXT_DUMMY['ext_css'][$k]);
135 unset($EXT_DUMMY['ext_funcs'][$k]);
139 $cacheInstance->cache_close();
141 // Loading cache is done so let's free some memory!
142 unset($EXT_DUMMY['ext_lang']);
143 unset($EXT_DUMMY['ext_keep']);
144 unset($EXT_DUMMY['ext_css']);
145 unset($EXT_DUMMY['ext_funcs']);
146 $cacheArray['extensions'] = $EXT_DUMMY;
149 // No database load needed
150 $res_ext_crt = false;
154 // If current user is not admin load only activated extensions
155 // The admin shall use every available extension for testing purposes
156 if (!IS_ADMIN()) $ADD = " WHERE ext_active='Y'";
158 if (GET_EXT_VERSION("sql_patches") >= "0.0.6")
160 // Query with CSS file from DB
161 $res_ext_crt = SQL_QUERY("SELECT id, ext_name, ext_lang_file, ext_has_css, ext_active, ext_version
162 FROM "._MYSQL_PREFIX."_extensions".$ADD."
163 ORDER BY ext_name", __FILE__, __LINE__);
167 // Old obsulete query string
168 $res_ext_crt = SQL_QUERY("SELECT id, ext_name, ext_lang_file, ext_name, ext_active, ext_version
169 FROM "._MYSQL_PREFIX."_extensions".$ADD."
170 ORDER BY ext_name", __FILE__, __LINE__);
174 // Array for removed but not uninstalled extensions
177 // At least one found?
178 if ((SQL_NUMROWS($res_ext_crt) > 0) && (($cacheMode == "init") || ($cacheMode == "no")) && ($CSS != "1") && ($CSS != "-1"))
180 // Load theme management
181 require_once(PATH."inc/theme-manager.php");
183 // If we need to init the cache init it now
184 if ($cacheMode == "init") $cacheInstance->cache_init("EXTENSIONS");
186 // Extensions are registered so we load them
187 while (list($EXT_ID, $name, $lang, $css, $active, $version) = SQL_FETCHROW($res_ext_crt))
190 $result_menu = SQL_QUERY_ESC("SELECT has_menu FROM "._MYSQL_PREFIX."_mod_reg WHERE module='%s' LIMIT 1",
191 array($name), __FILE__, __LINE__);
192 list($menu) = SQL_FETCHROW($result_menu);
193 //* DEBUG: */ echo "*".$name."/".$menu."*<br>";
195 // An empty menu entry will be interpreted as N (no menu) to avoid problems
196 if (empty($menu)) $menu = 'N';
199 $file1 = sprintf(PATH."inc/extensions/ext-%s.php", $name);
200 $file2 = $file1; $EXT_CSS = 'N'; $EXT_ALWAYS_ACTIVE = 'N';
202 // Special functions file
203 $file3 = sprintf(PATH."inc/libs/%s_functions.php", $name);
205 // Does the extension file exists?
206 if (file_exists($file1) && is_readable($file1))
208 // If there's no language file specified we don't need to load one... ;-)
210 // Create language file
211 $file2 = sprintf(PATH."inc/language/%s_%s.php", $lang, GET_LANGUAGE());
214 if (file_exists($file3) && is_readable($file3))
216 // Special functions file
218 require_once($file3);
222 // Don't load functions file
226 // Do we need a language file?
227 if (($file1 != $file2) && (file_exists($file2)) && (is_readable($file2)))
229 // Load language file
235 // Don't load language file
240 if ($name != "sql_patches")
242 // Load extension's file
243 include_once($file1);
247 // KEEP sql_patches ALWAYS ACTIVE!
248 $EXT_ALWAYS_ACTIVE = 'Y';
253 $CSS_FILE = PATH."theme/".GET_CURR_THEME()."/css/".$name.".css";
254 if (file_exists($CSS_FILE))
256 // CSS file for extension was found (use only relative path for now!)
257 $EXT_CSS_FILES[] = $name.".css";
261 // Don't load CSS file
267 if ($cacheMode == "init")
269 $cacheInstance->add_row(array(
275 'ext_funcs' => $funcs,
276 'ext_active' => $active,
277 'ext_version' => $version,
278 'ext_keep' => $EXT_ALWAYS_ACTIVE,
281 elseif ($cacheMode == "no")
283 // Remember this value for later usage
284 $cacheArray['active_extensions'][$name] = $EXT_ALWAYS_ACTIVE;
287 elseif (!file_exists($file1))
289 // Deleted extension file so we mark it for removal from DB
294 if ($cacheMode == "init")
297 $cacheInstance->cache_close();
299 // Load more cache files (like admins)
300 require_once(PATH."inc/load_cache.php");
305 SQL_FREERESULT($res_ext_crt);
307 // Load include files
308 if (!empty($INC_POOL[0]))
310 foreach ($INC_POOL as $inc)
316 // Uninstall extensions that are no longer in our system
319 // Remove extensions from two tables: extension registry and tasks table
320 foreach ($DEL as $name)
322 // First remove entry from extensions table
323 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
324 array($name), __FILE__, __LINE__);
326 // Remove (maybe?) found tasks (main task and possible updates
327 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE subject LIKE '[%s:] %' AND (task_type='EXTENSION' OR task_type='EXTENSION_UPDATE')",
328 array($name), __FILE__, __LINE__);
331 // I think it's not neccessary to run the optimization function here
332 // because we didn't delete so much data from database. Can you aggree?