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, $cacheMode;
44 // Is the extension already loaded?
45 if (isset($EXT_LOADED[$ext_name])) {
47 DEBUG_LOG(__FUNCTION__, __LINE__, sprintf("Extension %s already loaded.", $ext_name));
51 // Construct FQFN for extension file
52 $extInclude = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
54 // Is the extension file NOT there?
55 if (!FILE_READABLE($extInclude)) {
57 DEBUG_LOG(__FUNCTION__, __LINE__, sprintf("Extension %s not found.", $ext_name));
63 // Construct FQFN for language file
64 $langInclude = sprintf("%sinc/language/%s_%s.php", PATH, $ext_name, GET_LANGUAGE());
66 // Is this include there?
67 if (FILE_READABLE($langInclude)) {
69 require($langInclude);
72 // Construct FQFN for functions file
73 $funcsInclude = sprintf("%sinc/libs/%s_functions.php", PATH, $ext_name);
75 // Is this include there?
76 if (FILE_READABLE($funcsInclude)) {
78 require($funcsInclude);
81 // Set extension load mode to nothing (default)
84 // Include the extension file
88 $EXT_LOADED[$ext_name] = true;
95 function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false) {
96 global $NOTES, $_CONFIG, $INC_POOL, $cacheInstance;
98 // This shall never do a non-admin user!
99 if (!IS_ADMIN()) return false;
101 // Is this extension already installed?
102 if (EXT_IS_ACTIVE($ext_name)) return false;
104 // We want to register an extension and registration status is by default "failed" (= false)
105 $EXT_LOAD_MODE = "register"; $ret = false; $SQLs = array();
108 // By default the language prefix is the extension's name
109 // @TODO: Do we really need this one anymore? Can't we just take $ext_name and done?
110 // By default we have no failtures
111 $EXT_REPORTS_FAILURE = false;
113 // Generate file name
114 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
116 // Does this extension exists?
117 if (FILE_READABLE($file)) {
118 // Extension was found so we can load it in registration mode
119 $EXT_ALWAYS_ACTIVE = "N";
122 // And run possible updates
123 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = "";
124 foreach ($EXT_VER_HISTORY as $EXT_VER) {
125 // Load extension in update mode
128 // Do we have an update?
129 if (((GET_EXT_VERSION("sql_patches") != "") && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches"))) {
130 if (!empty($UPDATE_NOTES)) {
131 // Update notes found
132 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
134 } elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0")) {
136 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
138 // No update notes found!
139 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
144 // Does this extension depends on an outstanding update of another update?
145 if (!empty($EXT_UPDATE_DEPENDS)) {
146 // Backup SQL commands and clear current
151 // Load required extension also in update mode
152 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $EXT_UPDATE_DEPENDS);
154 // Check for required file
155 if (FILE_READABLE($file)) {
156 // Bacup version number
157 $VER_BACKUP = $EXT_VERSION;
159 // Save the Parrent $EXT_ALWAYS_ACTIVE for later!
160 $EXT_ALWAYS_ACTIVE_PARRENT = $EXT_ALWAYS_ACTIVE;
162 // Set EXT_ALWAYS_ACTIVE for update
163 $EXT_ALWAYS_ACTIVE = "N";
165 // File exists so let's load it
168 // If versions mismatch update extension first
169 $ext_ver = GET_EXT_VERSION($EXT_UPDATE_DEPENDS);
171 // Extension version set? If empty the extension is not registered
172 if (empty($ext_ver)) {
173 // Extension not registered so far so first load task's ID...
174 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE task_type='EXTENSION' AND subject LIKE '[%s:]%%' LIMIT 1",
175 array($EXT_UPDATE_DEPENDS), __FILE__, __LINE__);
178 if (SQL_NUMROWS($result) == 1) {
179 // Task found so load task's ID and register extension...
180 list($task) = SQL_FETCHROW($result);
182 // Try to register the extension
183 $test = EXTENSION_REGISTER($EXT_UPDATE_DEPENDS, $task, $dry_run);
187 SQL_FREERESULT($result);
188 } elseif ($ext_ver != $EXT_VERSION) {
189 // Ok, update this extension now
190 EXTENSION_UPDATE(basename($file), $EXT_UPDATE_DEPENDS, $ext_ver, $dry_run);
195 // Nothing to register / update before...
199 // Restore version number
200 $EXT_VERSION = $VER_BACKUP;
202 // Restore $EXT_ALWAYS_ACTIVE with the value from parrent
203 $EXT_ALWAYS_ACTIVE = $EXT_ALWAYS_ACTIVE_PARRENT;
205 // Required file for update does not exists!
207 // But this is fine for the first time...
210 // Finally restore previous SQLs
211 $SQLs = $SQLs2; unset($SQLs2);
213 // Does not depend on an other extension
217 // Switch back to register mode
218 $EXT_LOAD_MODE = "register";
220 // Remains true if extension registration reports no failtures
221 $test = ($test && !$EXT_REPORTS_FAILURE);
223 // Does everthing before wents ok?
225 // "Dry-run-mode" activated?
228 foreach ($SQLs as $sql) {
229 // Trim spaces away which we don't need
232 // Is there still an SQL query?
234 // Do we have an "ALTER TABLE" command?
235 if (substr(strtolower($sql), 0, 11) == "alter table") {
236 // Analyse the alteration command
237 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
239 // Run regular SQL command
240 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
245 // Remove cache file(s) if extension is active
246 if ((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) {
247 //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
248 // Remove cache files
249 if ($cacheInstance->loadCacheFile("extensions", true)) $cacheInstance->destroyCacheFile();
250 if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
251 if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
254 // Check for added include files
255 if (count($INC_POOL > 0)) {
256 // Loads every include file
257 foreach ($INC_POOL as $inc) {
265 // Register extension
266 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_active, ext_version) VALUES ('%s','%s','%s','%s')",
267 array($ext_name, $EXT_ALWAYS_ACTIVE, $EXT_VERSION), __FILE__, __LINE__);
269 // Update task management
270 ADMIN_SOLVE_TASK($id);
272 // @TODO This causes the whole (!) menu cache being purged
273 CACHE_PURGE_ADMIN_MENU();
275 // In normal mode return a true on success
281 // Rewrite SQL command to keep { and } inside
282 foreach ($SQLs as $key => $sql) {
283 $sql = str_replace('{', "{", str_replace('}', "}", $sql));
287 // In "dry-run" mode return array with all SQL commands
290 // Remove all SQL commands
294 // No, an error occurs while registering extension :-(
297 } elseif (($id > 0) && (!empty($ext_name))) {
298 // Remove task from system when id and extension's name is valid
299 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE id=%s AND status='NEW' LIMIT 1",
300 array(bigintval($id)), __FILE__, __LINE__);
303 // Is this the sql_patches?
304 //* DEBUG: */ echo __LINE__.":{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
305 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove")) && (!$dry_run) && ($test)) {
306 // Then redirect to logout
307 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
308 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
311 // Return status code
315 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
316 global $cacheInstance, $_CONFIG;
319 // Extensions are never active by default
320 $EXT_ALWAYS_ACTIVE = "N";
322 // By default no SQL has been executed
325 // This shall never do a non-admin user!
326 if (!IS_ADMIN()) return false;
328 // Get extension's name
329 $ext_name = GET_EXT_NAME($id);
330 if (empty($ext_name)) return false;
332 // Load extension in detected mode
333 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):ext_name[{$id}]={$ext_name}<br />\n";
334 $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
335 if (FILE_READABLE($file)) {
340 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQLs::count=".count($SQLs)."<br />\n";
341 if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
342 // Run SQL commands...
343 foreach ($SQLs as $sql) {
344 // Trim spaces away which we don't need
347 // Is there still an SQL query?
349 // Do we have an "ALTER TABLE" command?
350 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQL={$SQL}<br />\n";
351 if (substr(strtolower($sql), 0, 11) == "alter table") {
352 // Analyse the alteration command
353 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
355 // Run regular SQL command
356 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
359 // An SQL has been executed
365 if ($EXT_LOAD_MODE == "remove") {
366 // Delete this extension (remember to remove it from your server *before* you click on welcome!
367 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
368 array($id), __FILE__, __LINE__);
371 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):mode={$EXT_LOAD_MODE}<br />\n";
373 // Is this the sql_patches?
374 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
375 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
376 // Then redirect to logout
377 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
378 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
382 // Remove cache file(s) if extension is active
383 if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1)) || ($sqlRan === true) || ($EXT_LOAD_MODE == "activate") || ($EXT_LOAD_MODE == "deactivate"))) {
384 //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
385 // Remove cache files
386 if ($cacheInstance->loadCacheFile("extensions", true)) $cacheInstance->destroyCacheFile();
387 if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
388 if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
390 // @TODO This causes the whole (!) menu cache being purged
391 CACHE_PURGE_ADMIN_MENU();
394 // Check if given extension is active
395 function EXT_IS_ACTIVE ($ext_name) {
396 global $cacheArray, $_CONFIG;
398 // Extensions are all inactive during installation
399 if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
401 // Not active is the default
405 if (!empty($cacheArray['extensions']['ext_active'][$ext_name])) {
407 //* DEBUG: */ echo "CACHE! ext_name={$ext_name}<br />\n";
408 $active = $cacheArray['extensions']['ext_active'][$ext_name];
411 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
412 } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
413 //* DEBUG: */ echo "DB! ext_name={$ext_name}<br />\n";
414 // Load from database
415 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
416 array($ext_name), __FILE__, __LINE__);
417 if (SQL_NUMROWS($result) == 0) {
418 // Extension was not found!
423 list($active) = SQL_FETCHROW($result);
426 SQL_FREERESULT($result);
430 //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
431 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
433 // Extension not active!
434 //* DEBUG: */ echo $ext_name.": Not active!<br />\n";
435 $cacheArray['extensions']['ext_active'][$ext_name] = "N";
439 //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, " ext_name={$ext_name},active={$active}");
441 // Is this extension activated? (For admins we always have active extensions...)
442 return ($active == "Y");
444 // Get version from extensions
445 function GET_EXT_VERSION ($ext_name) {
446 global $cacheArray, $_CONFIG, $cacheInstance;
449 // Extensions are all inactive during installation
450 if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
451 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ext_name={$ext_name}<br />\n";
453 // Is the cache written?
454 if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
455 // Load data from cache
456 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): CACHE!<br />\n";
457 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
460 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
461 } elseif (!is_object($cacheInstance)) {
462 // Load from database
463 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
464 array($ext_name), __FILE__, __LINE__);
465 list($ret) = SQL_FETCHROW($result);
466 SQL_FREERESULT($result);
469 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
473 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ret={$ret}<br />\n";
477 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
479 // This shall never do a non-admin user!
480 global $cacheInstance, $_CONFIG, $NOTES;
483 $SQLs = array(); $INC_POOL = array();
485 // Only admins are allowed to update extensions
486 if ((!IS_ADMIN()) || (empty($ext))) return false;
488 // Load extension in update mode
489 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
491 // Load extension file
492 include(sprintf("%sinc/extensions/%s", PATH, $file));
494 if (!empty($EXT_UPDATE_DEPENDS)) {
495 // Update another extension first!
496 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
499 // Check if version is updated
500 if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY)))
502 // Search for starting point
503 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
506 // And load SQL queries in order of version history
507 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++)
509 // Remove old SQLs array to prevent possible bugs
510 if (!$dry_run) { unset($SQLs); $SQLs = array(); }
513 $EXT_VER = $EXT_VER_HISTORY[$idx];
516 include(PATH."inc/extensions/".$file);
519 if ($_CONFIG['verbose_sql'] == "Y")
521 $EXT_VER = $EXT_VER_HISTORY[$idx];
522 if (!empty($UPDATE_NOTES))
524 // Update notes found
525 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
528 elseif ($EXT_VER == "0.0")
531 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
535 $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
539 // In real-mode execute any existing includes
540 if ((!$dry_run) && (count($INC_POOL) > 0)) {
542 foreach ($INC_POOL as $fqfn) {
548 if ((is_array($SQLs)) && (!$dry_run)) {
550 foreach ($SQLs as $sql)
555 // Do we have an "ALTER TABLE" command?
556 if (substr(strtolower($sql), 0, 11) == "alter table") {
557 // Analyse the alteration command
558 SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
560 // Run regular SQL command
561 $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
565 } elseif (GET_EXT_VERSION("sql_patches") == "") {
566 // Remove SQLs if extension is not installed
573 // In normal mode insert task and update extension's version...
574 $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
577 CREATE_EXTENSION_UPDATE_TASK(GET_ADMIN_ID(get_session('admin_login')), $ext_subj, addslashes($NOTES));
579 // Update extension's version
580 $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
581 array($EXT_VERSION, $ext), __FILE__, __LINE__);
584 if (EXT_IS_ACTIVE("cache")) {
585 if ($cacheInstance->loadCacheFile("extensions", true)) $cacheInstance->destroyCacheFile();
586 if ($cacheInstance->loadCacheFile("config")) $cacheInstance->destroyCacheFile();
587 if ($cacheInstance->loadCacheFile("mod_reg")) $cacheInstance->destroyCacheFile();
593 // In "dry-run" mode return array with SQL commands
599 // Output verbose SQL table for extension
600 function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $WIDTH = "480") {
603 $S = false; $SW = 2; $i = 1;
605 if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
606 $OUT = "<DIV align=\"center\">
607 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
609 <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
610 <STRONG>".$title.":</STRONG>
613 foreach ($SQLs as $idx => $sql) {
618 <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
619 <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
623 if ($switch) $SW = 3 - $SW;
629 if ((!$S) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
630 // No addional SQL commands to run
632 <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
633 <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
639 // Add missing close-table tag
648 // Get extension name from id
649 function GET_EXT_NAME ($id) {
651 global $cacheArray, $_CONFIG;
652 if (!empty($cacheArray['extensions']['ext_name'][$id])) {
654 $ret = $cacheArray['extensions']['ext_name'][$id];
657 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
658 } elseif (!EXT_IS_ACTIVE("cache")) {
659 // Load from database
660 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
661 array(bigintval($id)), __FILE__, __LINE__);
662 list($ret) = SQL_FETCHROW($result);
663 SQL_FREERESULT($result);
668 // Get extension id from name
669 function GET_EXT_ID($name) {
671 global $cacheArray, $_CONFIG;
672 if (isset($cacheArray['extensions']['ext_id'][$name])) {
674 $ret = $cacheArray['extensions']['ext_id'][$name];
677 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
678 } elseif (!EXT_IS_ACTIVE("cache")) {
679 // Load from database
680 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
681 array($name), __FILE__, __LINE__);
682 list($ret) = SQL_FETCHROW($result);
683 SQL_FREERESULT($result);
690 // Activate given extension
691 function ACTIVATE_EXTENSION($ext_name) {
692 // Activate the extension
693 $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_active='Y' WHERE ext_name='%s' LIMIT 1",
694 array($ext_name), __FILE__, __LINE__);
696 // Extension has been activated?
697 if (SQL_AFFECTEDROWS() == 1) {
698 // Then run all queries
699 EXTENSION_RUN_SQLS(GET_EXT_ID($ext_name), "activate");
703 // Checks wether the extension is older than given
704 function EXT_VERSION_IS_OLDER ($ext_name, $ext_ver) {
705 // Get current extension version
706 $currVersion = GET_EXT_VERSION($ext_name);
708 // Remove all dots from both versions
709 $currVersion = str_replace(".", "", $currVersion);
710 $ext_ver = str_replace(".", "", $ext_ver);
712 // Now compare both and return the result
713 return ($currVersion < $ext_ver);