* -------------------------------------------------------------------- *
* 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) {
- 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][$filterFunction])) {
+ if ((isset($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, $filterName));
} // END - if
// Abort here
// Is the function there?
if (!function_exists($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) {
- global $filters;
+function unregisterFilter ($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][$filterFunction])) {
+ if ((!isset($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
- // Mark for filter removal
- $filters[$filterName][$filterFunction] = "R";
+ // Shall we remove? (default, not while just showing an extension removal)
+ if (!$dry_run) {
+ // Mark for filter removal
+ $GLOBALS['filters']['chains'][$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(sprintf(FILTER_FAILED_NO_FILTER_FOUND, $filterName));
+ // Add fatal message
+ addFatalMessage(__FUNCTION__, __LINE__, getMessage('FILTER_FAILED_NO_FILTER_FOUND'), $filterName);
} // END - if
// Abort here
$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
// 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
// Nothing is added/remove by default
- $inserted = 0; $removed = 0;
+ $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++;
$insertSQL = substr($insertSQL, 0, -1);
// And run it
- SQL_QUERY($insertSQL, __FILE__, __LINE__);
+ ADD_SQL($insertSQL);
} // END - if
// Something has been removed?
$removeSQL = substr($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,
+ $filterFunction
+ ));
+ } // END - foreach
+ } // END - foreach
+ } // END - if
+
+ // Run the run_sqls filter in non-dry mode
+ runFilterChain('run_sqls');
+}
+
+// Filter for calling the handler for login failures
+function FILTER_CALL_HANDLER_LOGIN_FAILTURES ($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&logout=1&' . $GLOBALS['ext_load_mode'] . '=sql_patches');
+ } // END - if
+
+ // This should not happen!
+ DEBUG_LOG(__FUNCTION__, __LINE__, 'Cannot auto-logout because no extension load-mode has been set.');
+}
+
+// Filter for auto-activation of a extension
+function FILTER_AUTO_ACTIVATE_EXTENSION ($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 $data;
+}
+
+// Filter for solving task given task
+function FILTER_SOLVE_TASK ($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 shutting down the database link
-function FILTER_SHUTDOWN_DATABASE () {
- global $link;
+// Filter for updating/validating login data
+function FILTER_UPDATE_LOGIN_DATA () {
+ // Add missing array
+ if ((!isset($GLOBALS['last'])) || (!is_array($GLOBALS['last']))) $GLOBALS['last'] = array();
+
+ // Recheck if logged in
+ if (!IS_MEMBER()) return false;
+
+ // Secure user ID
+ setUserId(getSession('userid'));
- if (is_resource($link)) {
- // Close link
- SQL_CLOSE($link, __FILE__, __LINE__);
- } else {
- // No database link
- ADD_FATAL(NO_DB_LINK);
+ // 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
}
//