2 /************************************************************************
3 * MXChange v0.2.1 Start: 03/25/2004 *
4 * =============== Last change: 09/29/2004 *
6 * -------------------------------------------------------------------- *
7 * File : extensions.php *
8 * -------------------------------------------------------------------- *
9 * Short description : Extension management *
10 * -------------------------------------------------------------------- *
11 * Kurzbeschreibung : Erweiterungen-Management *
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 $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
41 function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
43 global $NOTES, $_CONFIG, $INC_POOL, $cacheInstance;
44 // We want to register an extension and registration status is by default "failed" (= false)
45 $EXT_LOAD_MODE = "register"; $ret = false; $SQLs = array();
48 // This shall never do a non-admin user!
49 if (!IS_ADMIN()) return false;
51 // Is this extension already installed?
52 if (EXT_IS_ACTIVE($ext_name)) return false;
55 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
57 // Does this extension exists?
58 if (file_exists($file) && is_readable($file))
60 // Extension was found so we can load it in registration mode
63 // And run possible updates
64 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = "";
65 foreach ($EXT_VER_HISTORY as $EXT_VER)
68 if (((GET_EXT_VERSION("sql_patches") != '') && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches")))
70 if (!empty($UPDATE_NOTES))
73 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
76 elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0"))
79 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
83 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
88 // Does this extension depends on an outstanding update of another update?
89 if (!empty($EXT_UPDATE_DEPENDS))
91 // Backup SQL commands and clear current
92 $SQLs2 = $SQLs; $SQLs = array(); $test = false;
94 // Backup language as well
95 $LANG_BCK = $EXT_LANG_PREFIX; $EXT_ALWAYS_ACTIVE = "N";
97 // Load required extension also in update mode
98 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $EXT_UPDATE_DEPENDS);
100 // Check for required file
101 if (file_exists($file) && is_readable($file))
103 // File exists so let's load it
104 $VER_BACKUP = $EXT_VERSION;
106 $EXT_VERSION = $VER_BACKUP;
108 // If versions mismatch update extension first
109 $ext_ver = GET_EXT_VERSION($EXT_UPDATE_DEPENDS);
112 // Extension not registered so far so first load task's ID...
113 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE task_type='EXTENSION' AND subject LIKE '[%s:]%%' LIMIT 1",
114 array($EXT_UPDATE_DEPENDS), __FILE__, __LINE__);
115 if (SQL_NUMROWS($result) == 1)
117 // Task found so load task's ID and register extension...
118 list($task) = SQL_FETCHROW($result);
119 SQL_FREERESULT($result);
120 $test = EXTENSION_REGISTER($EXT_UPDATE_DEPENDS, $task, $dry_run);
123 elseif ($ext_ver != $EXT_VERSION)
125 // Ok, update this extension now
126 EXTENSION_UPDATE(basename($file), $EXT_UPDATE_DEPENDS, $ext_ver, $dry_run);
133 // Nothing to register / update before...
139 // Required file for update does not exists!
141 // But this is fine for the first time...
144 // Finally restore previous SQLs
145 $SQLs = $SQLs2; unset($SQLs2);
146 $EXT_LANG_PREFIX = $LANG_BCK;
150 // Does not depend on an other extension
154 // Switch back to register mode
155 $EXT_LOAD_MODE = "register";
157 // Does everthing before wents ok?
159 // "Dry-run-mode" activated?
162 foreach ($SQLs as $sql) {
163 // Trim spaces away which we don't need
166 // Is there still an SQL query?
168 // Do we have an "ALTER TABLE" command?
169 if (substr(strtolower($sql), 0, 11) == "alter table") {
170 // Analyse the alteration command
171 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
173 // Run regular SQL command
174 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
179 // Remove cache file(s) if extension is active
180 if ((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) {
181 //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
182 // Remove cache files
183 if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
184 if ($cacheInstance->cache_file("mod_reg", true)) $cacheInstance->cache_destroy();
185 if ($cacheInstance->cache_file("config", true)) $cacheInstance->cache_destroy();
188 // Check for added include files
189 if (count($INC_POOL > 0)) {
190 // Loads every include file
191 foreach ($INC_POOL as $inc) {
196 // Register extension
197 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_lang_file, ext_active, ext_version) VALUES ('%s', '%s', '%s', '%s')",
198 array($ext_name, $EXT_LANG_PREFIX, $EXT_ALWAYS_ACTIVE, $EXT_VERSION), __FILE__, __LINE__);
200 // Update task management
201 ADMIN_SOLVE_TASK($id);
203 // In normal mode return a true on success
204 $ret = true; unset($SQLs);
206 // Rewrite SQL command to keep { and } inside
207 foreach ($SQLs as $key => $sql) {
208 $sql = str_replace('{', "{", str_replace('}', "}", $sql));
212 // In "dry-run" mode return array with all SQL commands
215 // Remove all SQL commands
219 // No, an error occurs while registering extension :-(
222 } elseif (($id > 0) && (!empty($ext_name))) {
223 // Remove task from system when id and extension's name is valid
224 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE id=%s AND status='NEW' LIMIT 1",
225 array(bigintval($id)), __FILE__, __LINE__);
228 // Is this the sql_patches?
229 //* DEBUG: */ echo __LINE__.":{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
230 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove")) && (!$dry_run) && ($test)) {
231 // Then redirect to logout
232 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
233 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
236 // Return status code
240 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
241 global $cacheInstance;
244 // By default no SQL has been executed
247 // This shall never do a non-admin user!
248 if (!IS_ADMIN()) return false;
250 // Get extension's name
251 $ext_name = GET_EXT_NAME($id);
252 if (empty($ext_name)) return false;
254 // Load extension in detected mode
255 //* DEBUG: */ echo __FUNCTION__.":ext_name[{$id}]={$ext_name}<br />\n";
256 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
257 if (file_exists($file) && is_readable($file)) require($file);
259 //* DEBUG: */ echo __FUNCTION__.":SQLs::count=".count($SQLs)."<br />\n";
260 if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
261 // Run SQL commands...
262 foreach ($SQLs as $sql) {
263 // Trim spaces away which we don't need
266 // Is there still an SQL query?
268 // Do we have an "ALTER TABLE" command?
269 //* DEBUG: */ echo __FUNCTION__.":SQL={$SQL}<br />\n";
270 if (substr(strtolower($sql), 0, 11) == "alter table") {
271 // Analyse the alteration command
272 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
274 // Run regular SQL command
275 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
278 // An SQL has been executed
284 if ($EXT_LOAD_MODE == "remove") {
285 // Delete this extension (remember to remove it from your server *before* you click on welcome!
286 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
287 array($id), __FILE__, __LINE__);
290 //* DEBUG: */ echo __FUNCTION__.":mode={$EXT_LOAD_MODE}<br />\n";
292 // Remove cache file(s) if extension is active
293 if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1) && ($EXT_LOAD_MODE == "remove")) || ($sqlRan === true))) {
294 //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
295 // Remove cache files
296 if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
297 if ($cacheInstance->cache_file("mod_reg", true)) $cacheInstance->cache_destroy();
298 if ($cacheInstance->cache_file("config", true)) $cacheInstance->cache_destroy();
301 // Is this the sql_patches?
302 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
303 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
304 // Then redirect to logout
305 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
306 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
310 // Check if given extension is active
311 function EXT_IS_ACTIVE ($ext_name, $ignore_admin = false, $ignore_cache = false) {
312 global $cacheArray, $_CONFIG;
314 // Extensions are all inactive during installation
315 if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
317 // Extension's file name will also be checked
318 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
319 if ((!file_exists($file)) && (!is_readable($file))) return false;
320 //* DEBUG: */ echo "*".$ext_name."(".count($cacheArray).")<br />";
322 // Not active is the default
326 if ((!empty($cacheArray['extensions']['ext_active'][$ext_name])) && (!$ignore_cache)) {
328 //* DEBUG: */ echo "CACHE!<br />\n";
329 $active = $cacheArray['extensions']['ext_active'][$ext_name];
332 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
333 } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
334 //* DEBUG: */ echo "DB!<br />\n";
335 // Load from database
336 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
337 array($ext_name), __FILE__, __LINE__);
338 if (SQL_NUMROWS($result) == 0) {
339 // Extension was not found!
342 list($active) = SQL_FETCHROW($result);
343 //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
344 SQL_FREERESULT($result);
347 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
349 // Extension not active!
350 //* DEBUG: */ echo $ext_name.": Not active!<br />\n";
351 $cacheArray['extensions']['ext_active'][$ext_name] = "N";
354 // Create FQFN for extension file
355 $inc = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
358 //DEBUG_LOG(__FUNCTION__.": ext_name={$ext_name},active={$active}");
360 // Is this extension activated? (For admins we always have active extensions...)
371 // Get version from extensions
372 function GET_EXT_VERSION ($ext_name) {
373 global $cacheArray, $_CONFIG, $cacheInstance;
376 // Extensions are all inactive during installation
377 if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
378 //* DEBUG: */ echo __FUNCTION__.": ext_name={$ext_name}<br />\n";
380 // Is the cache written?
381 if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
382 // Load data from cache
383 //* DEBUG: */ echo __FUNCTION__.": CACHE!<br />\n";
384 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
387 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
388 } elseif (!is_object($cacheInstance)) {
389 // Load from database
390 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
391 array($ext_name), __FILE__, __LINE__);
392 list($ret) = SQL_FETCHROW($result);
393 SQL_FREERESULT($result);
396 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
400 //* DEBUG: */ echo __FUNCTION__.": ret={$ret}<br />\n";
404 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
406 // This shall never do a non-admin user!
407 global $cacheInstance, $_CONFIG, $NOTES; $SQLs = array();
408 if ((!IS_ADMIN()) || (empty($ext))) return false;
410 // Load extension in update mode
411 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
412 include(PATH."inc/extensions/".$file);
413 if (!empty($EXT_UPDATE_DEPENDS))
415 // Update another extension first!
416 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
419 // Check if version is updated
420 if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY)))
422 // Search for starting point
423 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
426 // And load SQL queries in order of version history
427 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++)
429 // Remove old SQLs array to prevent possible bugs
430 if (!$dry_run) { unset($SQLs); $SQLs = array(); }
433 $EXT_VER = $EXT_VER_HISTORY[$idx];
436 include(PATH."inc/extensions/".$file);
439 if ($_CONFIG['verbose_sql'] == "Y")
441 $EXT_VER = $EXT_VER_HISTORY[$idx];
442 if (!empty($UPDATE_NOTES))
444 // Update notes found
445 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
448 elseif ($EXT_VER == "0.0")
451 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
455 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
460 if ((is_array($SQLs)) && (!$dry_run))
463 foreach ($SQLs as $sql)
468 // Do we have an "ALTER TABLE" command?
469 if (substr(strtolower($sql), 0, 11) == "alter table") {
470 // Analyse the alteration command
471 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
473 // Run regular SQL command
474 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
478 } elseif (GET_EXT_VERSION("sql_patches") == "") {
479 // Remove SQLs if extension is not installed
486 // In normal mode insert task and update extension's version...
487 $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
490 CREATE_EXTENSION_UPDATE_TASK(GET_ADMIN_ID(get_session('admin_login')), $ext_subj, addslashes($NOTES));
492 // Update extension's version
493 $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
494 array($EXT_VERSION, $ext), __FILE__, __LINE__);
497 if (EXT_IS_ACTIVE("cache")) {
498 if ($cacheInstance->cache_file("extensions", true) == true) $cacheInstance->cache_destroy();
499 if ($cacheInstance->cache_file("config", true) == true) $cacheInstance->cache_destroy();
500 if ($cacheInstance->cache_file("mod_reg", true) == true) $cacheInstance->cache_destroy();
506 // In "dry-run" mode return array with SQL commands
512 function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $WIDTH = "480") {
515 $S = false; $SW = 2; $i = 1;
517 if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
518 $OUT = "<DIV align=\"center\">
519 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
521 <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
522 <STRONG>".$title.":</STRONG>
525 foreach ($SQLs as $idx => $sql) {
530 <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
531 <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
535 if ($switch) $SW = 3 - $SW;
541 if ((!$S) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
542 // No addional SQL commands to run
544 <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
545 <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
551 // Add missing close-table tag
559 // Get extension name from id
560 function GET_EXT_NAME ($id) {
562 global $cacheArray, $_CONFIG;
563 if (!empty($cacheArray['extensions']['ext_name'][$id])) {
565 $ret = $cacheArray['extensions']['ext_name'][$id];
568 $_CONFIG['cache_hits']++;
569 } elseif (!EXT_IS_ACTIVE("cache")) {
570 // Load from database
571 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
572 array(bigintval($id)), __FILE__, __LINE__);
573 list($ret) = SQL_FETCHROW($result);
574 SQL_FREERESULT($result);
578 // Get extension id from name
579 function GET_EXT_ID($name) {
581 global $cacheArray, $_CONFIG;
582 if (isset($cacheArray['extensions']['ext_id'][$name])) {
584 $ret = $cacheArray['extensions']['ext_id'][$name];
587 $_CONFIG['cache_hits']++;
588 } elseif (!EXT_IS_ACTIVE("cache")) {
589 // Load from database
590 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
591 array($name), __FILE__, __LINE__);
592 list($ret) = SQL_FETCHROW($result);
593 SQL_FREERESULT($result);