Functions renamed to new naming convetion, TODOs.txt updated
[mailer.git] / inc / filters.php
index efd94b263013d567fb20ab410df94271c82b68e6..6f213c8b65515f4f14a070bc1b705b62aacf2cca 100644 (file)
  * -------------------------------------------------------------------- *
  * Kurzbeschreibung  : Funktionen fuer Filter-System                    *
  * -------------------------------------------------------------------- *
- *                                                                      *
+ * $Revision::                                                        $ *
+ * $Date::                                                            $ *
+ * $Tag:: 0.2.1-FINAL                                                 $ *
+ * $Author::                                                          $ *
+ * Needs to be in all Files and every File needs "svn propset           *
+ * svn:keywords Date Revision" (autoprobset!) at least!!!!!!            *
  * -------------------------------------------------------------------- *
  * Copyright (c) 2003 - 2008 by Roland Haeder                           *
  * For more information visit: http://www.mxchange.org                  *
 
 // Some security stuff...
 if (!defined('__SECURITY')) {
-       $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4)."/security.php";
+       $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), '/inc') + 4) . '/security.php';
        require($INC);
 }
 
 // Init "generic filter system"
-function INIT_FILTER_SYSTEM() {
-       global $filters, $loadedFilters;
-
+function initFilterSystem () {
        // Is the filter already initialized?
-       if ((isset($filters)) && (is_array($filters))) {
+       if ((isset($GLOBALS['filters']['chains'])) && (is_array($GLOBALS['filters']['chains']))) {
                // Then abort here
-               ADD_FATAL(FILTER_FAILED_ALREADY_INIT);
+               addFatalMessage(__FUNCTION__, __LINE__, getMessage('FILTER_FAILED_ALREADY_INIT'));
                return false;
        } // END - if
 
        // Init the filter system (just some ideas)
-       $filters = array(
-               // Filters for pre-init phase
-               'preinit'   => array(),
-               // Filters for post-init phase
-               'postinit'  => array(),
-               // Filters for shutdown phase
-               'shutdown'  => array()
+       $GLOBALS['filters']['chains'] = array(
+               'preinit'   => array(), // Filters for pre-init phase
+               'postinit'  => array(), // Filters for post-init phase
+               'shutdown'  => array()  // Filters for shutdown phase
        );
 
-       // Init loaded filters
-       $loadedFilters =  array();
+       // Init loaded filters and counter
+       $GLOBALS['filters']['loaded'] =  array();
+       $GLOBALS['filters']['counter'] = array();
 
        // Load all saved filers if sql_patches is updated
-       if (GET_EXT_VERSION("sql_patches") >= "0.5.9") {
+       if (GET_EXT_VERSION('sql_patches') >= '0.5.9') {
+               // Init add
+               $add = '';
+               if (GET_EXT_VERSION('sql_patches') >= '0.6.0') $add = ", `filter_counter`";
+
                // Load all active filers
-               $result = SQL_QUERY("SELECT `filter_name`, `filter_function`, `filter_active`
-FROM `"._MYSQL_PREFIX."_filters`
-ORDER BY `filter_id` ASC", __FILE__, __LINE__);
+               $result = SQL_QUERY("SELECT `filter_name`,`filter_function`,`filter_active`".$add."
+FROM `{!_MYSQL_PREFIX!}_filters`
+ORDER BY `filter_id` ASC", __FUNCTION__, __LINE__);
 
                // Are there entries?
                if (SQL_NUMROWS($result) > 0) {
                        // Load all filters
                        while ($filterArray = SQL_FETCHARRAY($result)) {
+                               // Get filter name and function
+                               $filterName     = $filterArray['filter_name'];
+                               $filterFunction = $filterArray['filter_function'];
+
+                               // Set counter to default
+                               $GLOBALS['filters']['counter'][$filterName][$filterFunction] = 0;
+
                                // Mark this filter as loaded (from database)
-                               $loadedFilters[$filterArray['filter_name']][$filterArray['filter_function']] = true;
+                               $GLOBALS['filters']['loaded'][$filterName][$filterFunction] = true;
 
                                // Set this filter
-                               $filters[$filterArray['filter_name']][$filterArray['filter_function']] = $filterArray['filter_active'];
+                               $GLOBALS['filters']['chains'][$filterName][$filterFunction] = $filterArray['filter_active'];
+
+                               // Is the array element for counter there?
+                               if (isset($filterArray['filter_counter'])) {
+                                       // Then use this value!
+                                       $GLOBALS['filters']['counter'][$filterName][$filterFunction] = $filterArray['filter_counter'];
+                               } // END - if
                        } // END - while
                } // END - if
-       
+
                // Free result
                SQL_FREERESULT($result);
        } // END - if
 
-       // @TODO Find some more init/shutdown filter functions
+       // Init filters
+       registerFilter('init', 'UPDATE_LOGIN_DATA');
+       registerFilter('init', 'INIT_RANDOMIZER');
+
+       // Login failures handler
+       registerFilter('post_youhere_line', 'CALL_HANDLER_LOGIN_FAILTURES');
+
+       // Filters for pre-extension-registration
+       registerFilter('pre_extension_installed', 'RUN_SQLS');
+
+       // Filters for post-extension-registration
+       registerFilter('post_extension_installed', 'AUTO_ACTIVATE_EXTENSION');
+       registerFilter('post_extension_installed', 'SOLVE_TASK');
+       registerFilter('post_extension_installed', 'loadIncludeLUDES');
+       registerFilter('post_extension_installed', 'REMOVE_UPDATES');
+
+       // Solving tasks
+       registerFilter('solve_task', 'SOLVE_TASK');
+
+       // Loading includes in general
+       registerFilter('load_includes', 'loadIncludeLUDES');
+
+       // Run SQLs
+       registerFilter('run_sqls', 'RUN_SQLS');
+
+       // Admin ACL check
+       registerFilter('check_admin_acl', 'CHECK_ADMIN_ACL');
 
        // Register shutdown filters
-       REGISTER_FILTER('shutdown', 'FLUSH_FILTERS');
-       REGISTER_FILTER('shutdown', 'SHUTDOWN_DATABASE');
+       registerFilter('shutdown', 'FLUSH_FILTERS');
 }
 
 // "Registers" a new filter function
-function REGISTER_FILTER ($filterName, $filterFunction, $silentAbort = true, $force = false) {
-       global $filters;
-
+function registerFilter ($filterName, $filterFunction, $silentAbort = true, $force = false, $dry_run = false) {
        // Extend the filter function name
        $filterFunction = sprintf("FILTER_%s", strtoupper($filterFunction));
 
        // Is that filter already there?
-       if ((isset($filters[$filterName][$filterFunction])) && (!$force)) {
+       if ((isset($GLOBALS['filters']['chains'][$filterName][$filterFunction])) && (!$force)) {
                // Then abort here
                if (!$silentAbort) {
-                       ADD_FATAL(sprintf(FILTER_FAILED_ALREADY_ADDED, $filterFunction, $filterName));
+                       addFatalMessage(__FUNCTION__, __LINE__, getMessage('FILTER_FAILED_ALREADY_ADDED'), array($filterFunction, $filterName));
                } // END - if
 
                // Abort here
@@ -112,45 +153,48 @@ function REGISTER_FILTER ($filterName, $filterFunction, $silentAbort = true, $fo
        // Is the function there?
        if (!function_exists($filterFunction)) {
                // Then abort here
-               ADD_FATAL(sprintf(FILTER_FAILED_NOT_FOUND, $filterFunction, $filterName));
+               addFatalMessage(__FUNCTION__, __LINE__, getMessage('FILTER_FAILED_NOT_FOUND'), array($filterFunction, $filterName));
                return false;
        } // END - if
 
-       // Simply add it to the array
-       $filters[$filterName][$filterFunction] = "Y";
+       // Shall we add it?
+       if (!$dry_run) {
+               // Simply add it to the array
+               $GLOBALS['filters']['chains'][$filterName][$filterFunction] = 'Y';
+               $GLOBALS['filters']['counter'][$filterName][$filterFunction] = 0;
+       } // END - if
 }
 
 // "Unregisters" a filter from the given chain
-function UNREGISTER_FILTER ($filterName, $filterFunction, $force = false, $remove = true) {
-       global $filters;
-
-       // Extend the filter function name
-       $filterFunction = sprintf("FILTER_%s", strtoupper($filterFunction));
+function unregisterFilter ($filterName, $filterFunction, $force = false, $dry_run = false) {
+       // Extend the filter function name only if not loaded from database
+       if (!isset($GLOBALS['filters']['loaded'][$filterName][$filterFunction])) {
+               $filterFunction = sprintf("FILTER_%s", strtoupper($filterFunction));
+       } // END - if
 
        // Is that filter there?
-       if ((!isset($filters[$filterName][$filterFunction])) && (!$force)) {
+       if ((!isset($GLOBALS['filters']['chains'][$filterName][$filterFunction])) && (!$force)) {
                // Not found, so abort here
-               ADD_FATAL(sprintf(FILTER_FAILED_NOT_REMOVED, $filterFunction, $filterName));
+               addFatalMessage(__FUNCTION__, __LINE__, getMessage('FILTER_FAILED_NOT_REMOVED'), array($filterFunction, $filterName));
                return false;
        } // END - if
 
        // Shall we remove? (default, not while just showing an extension removal)
-       if ($remove) {
+       if (!$dry_run) {
                // Mark for filter removal
-               $filters[$filterName][$filterFunction] = "R";
+               $GLOBALS['filters']['chains'][$filterName][$filterFunction] = "R";
+               unset($GLOBALS['filters']['counter'][$filterName][$filterFunction]);
        } // END  - if
 }
 
 // "Runs" the given filters, data is optional and can be any type of data
-function RUN_FILTER ($filterName, $data = null, $silentAbort = true) {
-       global $filters;
-
+function runFilterChain ($filterName, $data = null, $silentAbort = true) {
        // Is that filter chain there?
-       if (!isset($filters[$filterName])) {
+       if (!isset($GLOBALS['filters']['chains'][$filterName])) {
                // Then abort here (quick'N'dirty hack)
                if ((!$silentAbort) && (defined('FILTER_FAILED_NO_FILTER_FOUND'))) {
                        // Add fatal message
-                       ADD_FATAL(sprintf(FILTER_FAILED_NO_FILTER_FOUND, $filterName));
+                       addFatalMessage(__FUNCTION__, __LINE__, getMessage('FILTER_FAILED_NO_FILTER_FOUND'), $filterName);
                } // END - if
 
                // Abort here
@@ -161,14 +205,26 @@ function RUN_FILTER ($filterName, $data = null, $silentAbort = true) {
        $returnValue = $data;
 
        // Then run all filters
-       foreach ($filters[$filterName] as $filterFunction=>$active) {
+       foreach ($GLOBALS['filters']['chains'][$filterName] as $filterFunction=>$active) {
                // Debug message
-               //* DEBUG: */ echo __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): name={$filterName}, func={$filterFunction}, active={$active}<br />\n";
+               //* DEBUG: */ echo __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): name={$filterName},func={$filterFunction},active={$active}<br />\n";
 
                // Is the filter active?
-               if ($active == "Y") {
+               if ($active == 'Y') {
+                       // Is this filter there?
+                       if (!function_exists($filterFunction)) {
+                               // Unregister it
+                               unregisterFilter($filterName, $filterFunction);
+
+                               // Skip this entry
+                               continue;
+                       } // END - if
+
                        // Call the filter chain
                        $returnValue = call_user_func_array($filterFunction, array($returnValue));
+
+                       // Update usage counter
+                       $GLOBALS['filters']['counter'][$filterName][$filterFunction]++;
                } // END - if
        } // END - foreach
 
@@ -182,17 +238,24 @@ function RUN_FILTER ($filterName, $data = null, $silentAbort = true) {
 
 // Filter for flushing all new filters to the database
 function FILTER_FLUSH_FILTERS () {
-       global $filters, $link, $loadedFilters;
+       // Clear all previous SQL queries
+       INIT_SQLS();
+
+       // Are we installing?
+       if ((isInstalling()) || (!isInstalled())) {
+               // Then silently skip this filter
+               return true;
+       } // END - if
 
        // Is a database link here and not in installation mode?
-       if ((!is_resource($link)) && (!isBooleanConstantAndTrue('mxchange_installing'))) {
+       if ((!SQL_IS_LINK_UP()) && (!isInstalling())) {
                // Abort here
-               ADD_FATAL(sprintf(FILTER_FLUSH_FAILED_NO_DATABASE, $filterFunction, $filterName));
+               addFatalMessage(__FUNCTION__, __LINE__, getMessage('FILTER_FLUSH_FAILED_NO_DATABASE'));
                return false;
        } // END - if
 
        // Is the extension sql_patches updated?
-       if (EXT_VERSION_IS_OLDER("sql_patches", "0.5.9")) {
+       if (EXT_VERSION_IS_OLDER('sql_patches', '0.5.9')) {
                // Abort silently here
                return false;
        } // END - if
@@ -201,15 +264,15 @@ function FILTER_FLUSH_FILTERS () {
        $inserted = 0; $removed = 0;
 
        // Prepare SQL queries
-       $insertSQL = "INSERT INTO `"._MYSQL_PREFIX."_filters` (`filter_name`,`filter_function`,`filter_active`) VALUES";
-       $removeSQL = "DELETE LOW_PRIORITY FROM `"._MYSQL_PREFIX."_filters` WHERE";
+       $insertSQL = "INSERT INTO `{!_MYSQL_PREFIX!}_filters` (`filter_name`,`filter_function`,`filter_active`) VALUES";
+       $removeSQL = "DELETE LOW_PRIORITY FROM `{!_MYSQL_PREFIX!}_filters` WHERE";
 
        // Write all filters to database
-       foreach ($filters as $filterName => $filterArray) {
+       foreach ($GLOBALS['filters']['chains'] as $filterName => $filterArray) {
                // Walk through all filters
                foreach ($filterArray as $filterFunction => $active) {
                        // Is this filter loaded?
-                       if (!isset($loadedFilters[$filterName][$filterFunction])) {
+                       if (!isset($GLOBALS['filters']['loaded'][$filterName][$filterFunction])) {
                                // Add this filter (all filters are active by default)
                                $insertSQL .= sprintf("('%s','%s','Y'),", $filterName, $filterFunction);
                                $inserted++;
@@ -227,7 +290,7 @@ function FILTER_FLUSH_FILTERS () {
                $insertSQL = substr($insertSQL, 0, -1);
 
                // And run it
-               SQL_QUERY($insertSQL, __FILE__, __LINE__);
+               ADD_SQL($insertSQL);
        } // END - if
 
        // Something has been removed?
@@ -236,21 +299,250 @@ function FILTER_FLUSH_FILTERS () {
                $removeSQL = substr($removeSQL, 0, -2) . "LIMIT ".$removed;
 
                // And run it
-               SQL_QUERY($removeSQL, __FILE__, __LINE__);
+               ADD_SQL($removeSQL);
        } // END - if
+
+       // Shall we update usage counters (ONLY FOR DEBUGGING!)
+       if (getConfig('update_filter_usage') == 'Y') {
+               // Update all counters
+               foreach ($GLOBALS['filters']['counter'] as $filterName => $filterArray) {
+                       // Walk through all filters
+                       foreach ($filterArray as $filterFunction => $cnt) {
+                               // Construct and add the query
+                               ADD_SQL(sprintf("UPDATE `{!_MYSQL_PREFIX!}_filters` SET `filter_counter`=%s WHERE `filter_name`='%s' AND `filter_function`='%s' LIMIT 1",
+                               bigintval($cnt),
+                               $filterName,
+                               $filterFunction
+                               ));
+                       } // END - foreach
+               } // END - foreach
+       } // END - if
+
+       // Run the run_sqls filter in non-dry mode
+       runFilterChain('run_sqls');
 }
 
-// Filter for shutting down the database link
-function FILTER_SHUTDOWN_DATABASE () {
-       global $link;
+// Filter for calling the handler for login failures
+function FILTER_CALL_HANDLER_LOGIN_FAILTURES ($data) {
+       // Init content
+       $content = $data;
+
+       // Handle failed logins here if not in guest
+       //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):type={$data['type']},action={$GLOBALS['action']},what={$GLOBALS['what']},lvl={$data['access_level']}<br />\n";
+       if ((($data['type'] == "what") || ($data['type'] == "action") && ((!isset($GLOBALS['what'])) || ($GLOBALS['what'] == "overview") || ($GLOBALS['what'] == getConfig('index_home')))) && ($data['access_level'] != 'guest') && ((GET_EXT_VERSION('sql_patches') >= '0.4.7') || (GET_EXT_VERSION('admins') >= '0.7.0'))) {
+               // Handle failure
+               $content['content'] .= HANDLE_LOGIN_FAILTURES($data['access_level']);
+       } // END - if
+
+       // Return the content
+       return $content;
+}
+
+// Filter for redirecting to logout if sql_patches has been installed
+function FILTER_REDIRECT_TO_LOGOUT_SQL_PATCHES () {
+       // Remove this filter
+       unregisterFilter('shutdown', __FUNCTION__);
+
+       // Is the element set?
+       if (isset($GLOBALS['ext_load_mode'])) {
+               // Redirect here
+               redirectToUrl('modules.php?module=admin&amp;logout=1&amp;' . $GLOBALS['ext_load_mode'] . '=sql_patches');
+       } // END - if
+
+       // This should not happen!
+       DEBUG_LOG(__FUNCTION__, __LINE__, 'Cannot auto-logout because no extension load-mode has been set.');
+}
+
+// Filter for auto-activation of a extension
+function FILTER_AUTO_ACTIVATE_EXTENSION ($data) {
+       // Is this extension always activated?
+       if (EXT_GET_ALWAYS_ACTIVE() == 'Y') {
+               // Then activate the extension
+               //* DEBUG: */ echo __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ext_name={$data['ext_name']}<br />\n";
+               ACTIVATE_EXTENSION($data['ext_name']);
+       } // END - if
+
+       // Return the data
+       return $data;
+}
 
-       if (is_resource($link)) {
-               // Close link
-               SQL_CLOSE($link, __FILE__, __LINE__);
-       } else {
-               // No database link
-               ADD_FATAL(NO_DB_LINK);
+// Filter for solving task given task
+function FILTER_SOLVE_TASK ($data) {
+       // Don't solve anything if no admin!
+       if (!IS_ADMIN()) return $data;
+
+       // Is this a direct task id or array element task_id is found?
+       if (is_int($data)) {
+               // Then solve it...
+               ADMIN_SOLVE_TASK($data);
+       } elseif ((is_array($data)) && (isset($data['task_id']))) {
+               // Solve it...
+               ADMIN_SOLVE_TASK($data['task_id']);
        }
+
+       // Return the data
+       return $data;
+}
+
+// Filter to load include files
+function FILTER_loadIncludeLUDES () {
+       // Default is $data as inclusion list
+       $data = GET_INC_POOL();
+
+       // Is it an array?
+       if ((!isset($data)) || (!is_array($data))) {
+               // Then abort here
+               debug_report_bug(sprintf("INC_POOL is no array! Type: %s", gettype($data)));
+       } elseif (isset($data['inc_pool'])) {
+               // Use this as new inclusion pool!
+               SET_INC_POOL($data['inc_pool']);
+       }
+
+       // Check for added include files
+       if (COUNT_INC_POOL() > 0) {
+               // Loads every include file
+               foreach (GET_INC_POOL() as $FQFN) {
+                       loadIncludeOnce($FQFN);
+               } // END - foreach
+
+               // Reset array
+               INIT_INC_POOL();
+       } // END - if
+
+       // Continue with processing
+       return $data;
+}
+
+// Filter for running SQL commands
+function FILTER_RUN_SQLS ($data) {
+       // Debug message
+       //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, " - Entered!");
+
+       // Is the array there?
+       if ((IS_SQLS_VALID()) && ((!isset($data['dry_run'])) || ($data['dry_run'] == false))) {
+               // Run SQL commands
+               //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, " - Found ".COUNT_SQLS()." queries to run.");
+               foreach (GET_SQLS() as $sql) {
+                       // Trim spaces away
+                       $sql = trim($sql);
+
+                       // Is there still a query left?
+                       if (!empty($sql)) {
+                               // Do we have an "ALTER TABLE" command?
+                               if (substr(strtolower($sql), 0, 11) == "alter table") {
+                                       // Analyse the alteration command
+                                       //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, "Alterting table: {$sql}");
+                                       SQL_ALTER_TABLE($sql, __FUNCTION__, __LINE__);
+                               } else {
+                                       // Run regular SQL command
+                                       //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, "Running regular query: {$sql}");
+                                       SQL_QUERY($sql, __FUNCTION__, __LINE__, false);
+                               }
+                       } // END - if
+               } // END - foreach
+       } // END - if
+
+       // Debug message
+       //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, " - Left!");
+}
+
+// Filter for updating/validating login data
+function FILTER_UPDATE_LOGIN_DATA () {
+       // Add missing array
+       if ((!isset($GLOBALS['last'])) || (!is_array($GLOBALS['last']))) $GLOBALS['last'] = array();
+
+       // Recheck if logged in
+       if (!IS_MEMBER()) return false;
+
+       // Secure user ID
+       setUserId(getSession('userid'));
+
+       // Load last module and last online time
+       $result = SQL_QUERY_ESC("SELECT last_module, last_online FROM `{!_MYSQL_PREFIX!}_user_data` WHERE userid=%s LIMIT 1",
+       array(getUserId()), __FUNCTION__, __LINE__);
+
+       // Entry found?
+       if (SQL_NUMROWS($result) == 1) {
+               // Load last module and online time
+               list($mod, $onl) = SQL_FETCHROW($result);
+
+               // Maybe first login time?
+               if (empty($mod)) $mod = "login";
+
+               // This will be displayed on welcome page! :-)
+               if (empty($GLOBALS['last']['module'])) {
+                       $GLOBALS['last']['module'] = $mod; $GLOBALS['last']['online'] = $onl;
+               } // END - if
+
+               // "what" not set?
+               if (empty($GLOBALS['what'])) {
+                       // Fix it to default
+                       $GLOBALS['what'] = "welcome";
+                       if (getConfig('index_home') != '') $GLOBALS['what'] = getConfig('index_home');
+               } // END - if
+
+               // Update last module / online time
+               SQL_QUERY_ESC("UPDATE `{!_MYSQL_PREFIX!}_user_data` SET `last_module`='%s', last_online=UNIX_TIMESTAMP(), REMOTE_ADDR='%s' WHERE userid=%s LIMIT 1",
+               array($GLOBALS['what'], detectRemoteAddr(), getUserId()), __FUNCTION__, __LINE__);
+       }  else {
+               // Destroy session, we cannot update!
+               destroyUserSession();
+       }
+
+       // Free the result
+       SQL_FREERESULT($result);
+}
+
+// Filter for checking admin ACL
+function FILTER_CHECK_ADMIN_ACL () {
+       // Extension not installed so it's always allowed to access everywhere!
+       $ret = true;
+
+       // Ok, Cookie-Update done
+       if ((GET_EXT_VERSION('admins') >= '0.3.0') && (EXT_IS_ACTIVE('admins'))) {
+               // Check if action GET variable was set
+               $action = SQL_ESCAPE($GLOBALS['action']);
+               if (!empty($GLOBALS['what'])) {
+                       // Get action value by what-value
+                       $action = getModeAction('admin', $GLOBALS['what']);
+               } // END - if
+
+               // Check for access control line of current menu entry
+               $ret = adminsCheckAdminAcl($action, $GLOBALS['what']);
+       } // END - if
+
+       // Return result
+       return $ret;
+}
+
+// Filter for initializing randomizer
+function FILTER_INIT_RANDOMIZER () {
+       // Simply init the randomizer with seed and _ADD value
+       mt_srand(generateSeed() + getConfig('_ADD'));
+}
+
+// Filter for removing updates
+function FILTER_REMOVE_UPDATES () {
+       // Init removal list
+       EXT_INIT_REMOVAL_LIST();
+
+       // Add the current extension to it
+       EXT_ADD_CURRENT_TO_REMOVAL_LIST();
+
+       // Simply remove it
+       UNSET_EXT_SQLS();
+
+       // Do we need to remove update depency?
+       if (EXT_COUNT_UPDATE_DEPENDS() > 0) {
+               // Then find all updates we shall no longer execute
+               foreach (EXT_GET_UPDATE_DEPENDS() as $id=>$ext_name) {
+                       // Shall we remove this update?
+                       if (in_array($ext_name, EXT_GET_REMOVAL_LIST())) {
+                               // Then remove this extension!
+                               EXT_REMOVE_UPDATE_DEPENDS($ext_name);
+                       } // END - if
+               } // END - foreach
+       } // END - if
 }
 
 //