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 (!defined('__SECURITY')) {
36 $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
40 // Load the extension and maybe found language and function files
41 function LOAD_EXTENSION ($ext_name) {
42 global $EXT_LOADED, $_CONFIG, $CSS, $cacheMode;
44 // Is the extension already loaded?
45 //* DEBUG: */ echo "Loading extension {$ext_name}.<br />\n";
46 if (isset($EXT_LOADED[$ext_name])) {
48 DEBUG_LOG(__FUNCTION__, __LINE__, sprintf("Extension %s already loaded.", $ext_name));
52 // Construct FQFN for extension file
53 $extInclude = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
55 // Is the extension file NOT there?
56 if (!FILE_READABLE($extInclude)) {
58 DEBUG_LOG(__FUNCTION__, __LINE__, sprintf("Extension %s not found.", $ext_name));
64 // Construct FQFN for language file
65 $langInclude = sprintf("%sinc/language/%s_%s.php", PATH, $ext_name, GET_LANGUAGE());
67 // Is this include there?
68 if (FILE_READABLE($langInclude)) {
70 //* DEBUG: */ echo "--- Language loaded.<br />\n";
71 require($langInclude);
74 // Construct FQFN for functions file
75 $funcsInclude = sprintf("%sinc/libs/%s_functions.php", PATH, $ext_name);
77 // Is this include there?
78 if (FILE_READABLE($funcsInclude)) {
80 //* DEBUG: */ echo "--- Functions loaded.<br />\n";
81 require($funcsInclude);
84 // Set extension load mode to nothing (default)
87 // Include the extension file
88 //* DEBUG: */ echo "Extension loaded.<br />\n";
92 $EXT_LOADED[$ext_name] = true;
99 function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false) {
100 global $NOTES, $_CONFIG, $INC_POOL, $cacheInstance;
102 // This shall never do a non-admin user!
103 if (!IS_ADMIN()) return false;
105 // Is this extension already installed?
106 if (EXT_IS_ACTIVE($ext_name)) return false;
108 // We want to register an extension and registration status is by default "failed" (= false)
109 $EXT_LOAD_MODE = "register"; $ret = false; $SQLs = array();
112 // By default the language prefix is the extension's name
113 // @TODO: Do we really need this one anymore? Can't we just take $ext_name and done?
114 // By default we have no failtures
115 $EXT_REPORTS_FAILURE = false;
117 // Generate file name
118 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
120 // Does this extension exists?
121 if (FILE_READABLE($file)) {
122 // Extension was found so we can load it in registration mode
123 $EXT_ALWAYS_ACTIVE = "N";
126 // And run possible updates
127 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = "";
128 foreach ($EXT_VER_HISTORY as $EXT_VER) {
129 // Load extension in update mode
132 // Do we have an update?
133 if (((GET_EXT_VERSION("sql_patches") != "") && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches"))) {
134 if (!empty($UPDATE_NOTES)) {
135 // Update notes found
136 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
138 } elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0")) {
140 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
142 // No update notes found!
143 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
148 // Does this extension depends on an outstanding update of another update?
149 if (!empty($EXT_UPDATE_DEPENDS)) {
150 // Backup SQL commands and clear current
155 // Load required extension also in update mode
156 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $EXT_UPDATE_DEPENDS);
158 // Check for required file
159 if (FILE_READABLE($file)) {
160 // Bacup version number
161 $VER_BACKUP = $EXT_VERSION;
163 // Save the Parrent $EXT_ALWAYS_ACTIVE for later!
164 $EXT_ALWAYS_ACTIVE_PARRENT = $EXT_ALWAYS_ACTIVE;
166 // Set EXT_ALWAYS_ACTIVE for update
167 $EXT_ALWAYS_ACTIVE = "N";
169 // File exists so let's load it
172 // If versions mismatch update extension first
173 $ext_ver = GET_EXT_VERSION($EXT_UPDATE_DEPENDS);
175 // Extension version set? If empty the extension is not registered
176 if (empty($ext_ver)) {
177 // Extension not registered so far so first load task's ID...
178 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE task_type='EXTENSION' AND subject LIKE '[%s:]%%' LIMIT 1",
179 array($EXT_UPDATE_DEPENDS), __FILE__, __LINE__);
182 if (SQL_NUMROWS($result) == 1) {
183 // Task found so load task's ID and register extension...
184 list($task) = SQL_FETCHROW($result);
186 // Try to register the extension
187 $test = EXTENSION_REGISTER($EXT_UPDATE_DEPENDS, $task, $dry_run);
191 SQL_FREERESULT($result);
192 } elseif ($ext_ver != $EXT_VERSION) {
193 // Ok, update this extension now
194 EXTENSION_UPDATE(basename($file), $EXT_UPDATE_DEPENDS, $ext_ver, $dry_run);
199 // Nothing to register / update before...
203 // Restore version number
204 $EXT_VERSION = $VER_BACKUP;
206 // Restore $EXT_ALWAYS_ACTIVE with the value from parrent
207 $EXT_ALWAYS_ACTIVE = $EXT_ALWAYS_ACTIVE_PARRENT;
209 // Required file for update does not exists!
211 // But this is fine for the first time...
214 // Finally restore previous SQLs
215 $SQLs = $SQLs2; unset($SQLs2);
217 // Does not depend on an other extension
221 // Switch back to register mode
222 $EXT_LOAD_MODE = "register";
224 // Remains true if extension registration reports no failtures
225 $test = ($test && !$EXT_REPORTS_FAILURE);
227 // Does everthing before wents ok?
229 // "Dry-run-mode" activated?
232 foreach ($SQLs as $sql) {
233 // Trim spaces away which we don't need
236 // Is there still an SQL query?
238 // Do we have an "ALTER TABLE" command?
239 if (substr(strtolower($sql), 0, 11) == "alter table") {
240 // Analyse the alteration command
241 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
243 // Run regular SQL command
244 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
249 // Remove cache file(s) if extension is active
250 if ((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) {
251 //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
252 // Remove cache files
253 if ($cacheInstance->loadCacheFile("extensions", true)) $cacheInstance->destroyCacheFile();
254 if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
255 if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
258 // Check for added include files
259 if (count($INC_POOL > 0)) {
260 // Loads every include file
261 foreach ($INC_POOL as $inc) {
269 // Register extension
270 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_active, ext_version) VALUES ('%s','%s','%s','%s')",
271 array($ext_name, $EXT_ALWAYS_ACTIVE, $EXT_VERSION), __FILE__, __LINE__);
273 // Update task management
274 ADMIN_SOLVE_TASK($id);
276 // @TODO This causes the whole (!) menu cache being purged
277 CACHE_PURGE_ADMIN_MENU();
279 // In normal mode return a true on success
285 // Rewrite SQL command to keep { and } inside
286 foreach ($SQLs as $key => $sql) {
287 $sql = str_replace('{', "{", str_replace('}', "}", $sql));
291 // In "dry-run" mode return array with all SQL commands
294 // Remove all SQL commands
298 // No, an error occurs while registering extension :-(
301 } elseif (($id > 0) && (!empty($ext_name))) {
302 // Remove task from system when id and extension's name is valid
303 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE id=%s AND status='NEW' LIMIT 1",
304 array(bigintval($id)), __FILE__, __LINE__);
307 // Is this the sql_patches?
308 //* DEBUG: */ echo __LINE__.":{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
309 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove")) && (!$dry_run) && ($test)) {
310 // Then redirect to logout
311 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
312 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
315 // Return status code
319 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
320 global $cacheInstance, $_CONFIG;
323 // Extensions are never active by default
324 $EXT_ALWAYS_ACTIVE = "N";
326 // By default no SQL has been executed
329 // This shall never do a non-admin user!
330 if (!IS_ADMIN()) return false;
332 // Get extension's name
333 $ext_name = GET_EXT_NAME($id);
334 if (empty($ext_name)) return false;
336 // Load extension in detected mode
337 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):ext_name[{$id}]={$ext_name}<br />\n";
338 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
339 if (FILE_READABLE($file)) {
344 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQLs::count=".count($SQLs)."<br />\n";
345 if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
346 // Run SQL commands...
347 foreach ($SQLs as $sql) {
348 // Trim spaces away which we don't need
351 // Is there still an SQL query?
353 // Do we have an "ALTER TABLE" command?
354 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQL={$SQL}<br />\n";
355 if (substr(strtolower($sql), 0, 11) == "alter table") {
356 // Analyse the alteration command
357 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
359 // Run regular SQL command
360 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
363 // An SQL has been executed
369 if ($EXT_LOAD_MODE == "remove") {
370 // Delete this extension (remember to remove it from your server *before* you click on welcome!
371 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
372 array($id), __FILE__, __LINE__);
375 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):mode={$EXT_LOAD_MODE}<br />\n";
377 // Is this the sql_patches?
378 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
379 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
380 // Then redirect to logout
381 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
382 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
386 // Remove cache file(s) if extension is active
387 if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1)) || ($sqlRan === true) || ($EXT_LOAD_MODE == "activate") || ($EXT_LOAD_MODE == "deactivate"))) {
388 //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
389 // Remove cache files
390 if ($cacheInstance->loadCacheFile("extensions", true)) $cacheInstance->destroyCacheFile();
391 if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
392 if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
394 // @TODO This causes the whole (!) menu cache being purged
395 CACHE_PURGE_ADMIN_MENU();
398 // Check if given extension is active
399 function EXT_IS_ACTIVE ($ext_name) {
400 global $cacheArray, $_CONFIG;
402 // Extensions are all inactive during installation
403 if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
405 // Not active is the default
409 if (!empty($cacheArray['extensions']['ext_active'][$ext_name])) {
411 //* DEBUG: */ echo "CACHE! ext_name={$ext_name}<br />\n";
412 $active = $cacheArray['extensions']['ext_active'][$ext_name];
415 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
416 } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
417 //* DEBUG: */ echo "DB! ext_name={$ext_name}<br />\n";
418 // Load from database
419 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
420 array($ext_name), __FILE__, __LINE__);
421 if (SQL_NUMROWS($result) == 0) {
422 // Extension was not found!
427 list($active) = SQL_FETCHROW($result);
430 SQL_FREERESULT($result);
434 //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
435 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
437 // Extension not active!
438 //* DEBUG: */ echo $ext_name.": Not active!<br />\n";
439 $cacheArray['extensions']['ext_active'][$ext_name] = "N";
443 //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, " ext_name={$ext_name},active={$active}");
445 // Is this extension activated? (For admins we always have active extensions...)
446 return ($active == "Y");
448 // Get version from extensions
449 function GET_EXT_VERSION ($ext_name) {
450 global $cacheArray, $_CONFIG, $cacheInstance;
453 // Extensions are all inactive during installation
454 if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
455 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ext_name={$ext_name}<br />\n";
457 // Is the cache written?
458 if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
459 // Load data from cache
460 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): CACHE!<br />\n";
461 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
464 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
465 } elseif (!is_object($cacheInstance)) {
466 // Load from database
467 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
468 array($ext_name), __FILE__, __LINE__);
469 list($ret) = SQL_FETCHROW($result);
470 SQL_FREERESULT($result);
473 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
477 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ret={$ret}<br />\n";
481 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
483 // This shall never do a non-admin user!
484 global $cacheInstance, $_CONFIG, $NOTES;
487 $SQLs = array(); $INC_POOL = array();
489 // Only admins are allowed to update extensions
490 if ((!IS_ADMIN()) || (empty($ext))) return false;
492 // Load extension in update mode
493 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
495 // Load extension file
496 include(sprintf("%sinc/extensions/%s", PATH, $file));
498 if (!empty($EXT_UPDATE_DEPENDS)) {
499 // Update another extension first!
500 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
503 // Check if version is updated
504 if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY)))
506 // Search for starting point
507 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
510 // And load SQL queries in order of version history
511 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++)
513 // Remove old SQLs array to prevent possible bugs
514 if (!$dry_run) { unset($SQLs); $SQLs = array(); }
517 $EXT_VER = $EXT_VER_HISTORY[$idx];
520 include(PATH."inc/extensions/".$file);
523 if ($_CONFIG['verbose_sql'] == "Y")
525 $EXT_VER = $EXT_VER_HISTORY[$idx];
526 if (!empty($UPDATE_NOTES))
528 // Update notes found
529 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
532 elseif ($EXT_VER == "0.0")
535 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
539 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
543 // In real-mode execute any existing includes
544 if ((!$dry_run) && (count($INC_POOL) > 0)) {
546 foreach ($INC_POOL as $fqfn) {
552 if ((is_array($SQLs)) && (!$dry_run)) {
554 foreach ($SQLs as $sql)
559 // Do we have an "ALTER TABLE" command?
560 if (substr(strtolower($sql), 0, 11) == "alter table") {
561 // Analyse the alteration command
562 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
564 // Run regular SQL command
565 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
569 } elseif (GET_EXT_VERSION("sql_patches") == "") {
570 // Remove SQLs if extension is not installed
577 // In normal mode insert task and update extension's version...
578 $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
581 CREATE_EXTENSION_UPDATE_TASK(GET_ADMIN_ID(get_session('admin_login')), $ext_subj, addslashes($NOTES));
583 // Update extension's version
584 $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
585 array($EXT_VERSION, $ext), __FILE__, __LINE__);
588 if (EXT_IS_ACTIVE("cache")) {
589 if ($cacheInstance->loadCacheFile("extensions", true)) $cacheInstance->destroyCacheFile();
590 if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
591 if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
597 // In "dry-run" mode return array with SQL commands
603 // Output verbose SQL table for extension
604 function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $WIDTH = "480") {
607 $S = false; $SW = 2; $i = 1;
609 if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
610 $OUT = "<DIV align=\"center\">
611 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
613 <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
614 <STRONG>".$title.":</STRONG>
617 foreach ($SQLs as $idx => $sql) {
622 <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
623 <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
627 if ($switch) $SW = 3 - $SW;
633 if ((!$S) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
634 // No addional SQL commands to run
636 <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
637 <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
643 // Add missing close-table tag
652 // Get extension name from id
653 function GET_EXT_NAME ($id) {
655 global $cacheArray, $_CONFIG;
656 if (!empty($cacheArray['extensions']['ext_name'][$id])) {
658 $ret = $cacheArray['extensions']['ext_name'][$id];
661 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
662 } elseif (!EXT_IS_ACTIVE("cache")) {
663 // Load from database
664 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
665 array(bigintval($id)), __FILE__, __LINE__);
666 list($ret) = SQL_FETCHROW($result);
667 SQL_FREERESULT($result);
672 // Get extension id from name
673 function GET_EXT_ID($name) {
675 global $cacheArray, $_CONFIG;
676 if (isset($cacheArray['extensions']['ext_id'][$name])) {
678 $ret = $cacheArray['extensions']['ext_id'][$name];
681 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
682 } elseif (!EXT_IS_ACTIVE("cache")) {
683 // Load from database
684 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
685 array($name), __FILE__, __LINE__);
686 list($ret) = SQL_FETCHROW($result);
687 SQL_FREERESULT($result);
694 // Activate given extension
695 function ACTIVATE_EXTENSION($ext_name) {
696 // Activate the extension
697 $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_active='Y' WHERE ext_name='%s' LIMIT 1",
698 array($ext_name), __FILE__, __LINE__);
700 // Extension has been activated?
701 if (SQL_AFFECTEDROWS() == 1) {
702 // Then run all queries
703 EXTENSION_RUN_SQLS(GET_EXT_ID($ext_name), "activate");
707 // Checks wether the extension is older than given
708 function EXT_VERSION_IS_OLDER ($ext_name, $ext_ver) {
709 // Get current extension version
710 $currVersion = GET_EXT_VERSION($ext_name);
712 // Remove all dots from both versions
713 $currVersion = str_replace(".", "", $currVersion);
714 $ext_ver = str_replace(".", "", $ext_ver);
716 // Now compare both and return the result
717 return ($currVersion < $ext_ver);