1088 lines
33 KiB
PHP
1088 lines
33 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Tracking changes on databases, tables and views
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*
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* @package PhpMyAdmin
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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/**
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* This class tracks changes on databases, tables and views.
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*
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* @package PhpMyAdmin
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*
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* @todo use stristr instead of strstr
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*/
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class PMA_Tracker
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{
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/**
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* Whether tracking is ready.
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*/
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static protected $enabled = false;
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/**
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* Defines the internal PMA table which contains tracking data.
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*
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* @access protected
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* @var string
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*/
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static protected $pma_table;
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/**
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* Defines the usage of DROP TABLE statment in SQL dumps.
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*
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* @access protected
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* @var boolean
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*/
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static protected $add_drop_table;
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/**
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* Defines the usage of DROP VIEW statment in SQL dumps.
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*
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* @access protected
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* @var boolean
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*/
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static protected $add_drop_view;
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/**
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* Defines the usage of DROP DATABASE statment in SQL dumps.
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*
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* @access protected
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* @var boolean
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*/
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static protected $add_drop_database;
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/**
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* Defines auto-creation of tracking versions.
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*
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* @var boolean
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*/
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static protected $version_auto_create;
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/**
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* Defines the default set of tracked statements.
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*
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* @var string
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*/
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static protected $default_tracking_set;
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/**
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* Flags copied from `tracking` column definition in `pma_tracking` table.
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* Used for column type conversion in Drizzle.
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*
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* @var array
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*/
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static private $_tracking_set_flags = array(
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'UPDATE','REPLACE','INSERT','DELETE','TRUNCATE','CREATE DATABASE',
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'ALTER DATABASE','DROP DATABASE','CREATE TABLE','ALTER TABLE',
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'RENAME TABLE','DROP TABLE','CREATE INDEX','DROP INDEX',
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'CREATE VIEW','ALTER VIEW','DROP VIEW'
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);
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/**
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* Initializes settings.
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*
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* @static
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*
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* @return void
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*/
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static protected function init()
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{
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self::$pma_table = PMA_Util::backquote($GLOBALS['cfg']['Server']['pmadb'])
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. '.' . PMA_Util::backquote($GLOBALS['cfg']['Server']['tracking']);
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self::$add_drop_table
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= $GLOBALS['cfg']['Server']['tracking_add_drop_table'];
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self::$add_drop_view
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= $GLOBALS['cfg']['Server']['tracking_add_drop_view'];
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self::$add_drop_database
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= $GLOBALS['cfg']['Server']['tracking_add_drop_database'];
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self::$default_tracking_set
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= $GLOBALS['cfg']['Server']['tracking_default_statements'];
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self::$version_auto_create
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= $GLOBALS['cfg']['Server']['tracking_version_auto_create'];
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}
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/**
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* Actually enables tracking. This needs to be done after all
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* underlaying code is initialized.
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*
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* @static
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*
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* @return void
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*/
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static public function enable()
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{
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self::$enabled = true;
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}
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/**
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* Gets the on/off value of the Tracker module, starts initialization.
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*
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* @static
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*
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* @return boolean (true=on|false=off)
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*/
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static public function isActive()
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{
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if (! self::$enabled) {
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return false;
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}
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/* We need to avoid attempt to track any queries
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* from PMA_getRelationsParam
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*/
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self::$enabled = false;
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$cfgRelation = PMA_getRelationsParam();
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/* Restore original state */
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self::$enabled = true;
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if (! $cfgRelation['trackingwork']) {
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return false;
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}
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self::init();
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if (isset(self::$pma_table)) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Parses the name of a table from a SQL statement substring.
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*
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* @param string $string part of SQL statement
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*
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* @static
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*
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* @return string the name of table
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*/
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static protected function getTableName($string)
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{
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if (strstr($string, '.')) {
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$temp = explode('.', $string);
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$tablename = $temp[1];
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} else {
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$tablename = $string;
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}
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$str = explode("\n", $tablename);
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$tablename = $str[0];
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$tablename = str_replace(';', '', $tablename);
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$tablename = str_replace('`', '', $tablename);
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$tablename = trim($tablename);
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return $tablename;
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}
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/**
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* Gets the tracking status of a table, is it active or deactive ?
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*
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* @param string $dbname name of database
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* @param string $tablename name of table
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*
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* @static
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*
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* @return boolean true or false
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*/
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static public function isTracked($dbname, $tablename)
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{
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if (! self::$enabled) {
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return false;
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}
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/* We need to avoid attempt to track any queries
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* from PMA_getRelationsParam
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*/
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self::$enabled = false;
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$cfgRelation = PMA_getRelationsParam();
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/* Restore original state */
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self::$enabled = true;
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if (! $cfgRelation['trackingwork']) {
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return false;
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}
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$sql_query = " SELECT tracking_active FROM " . self::$pma_table .
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" WHERE db_name = '" . PMA_Util::sqlAddSlashes($dbname) . "' " .
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" AND table_name = '" . PMA_Util::sqlAddSlashes($tablename) . "' " .
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" ORDER BY version DESC";
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$row = $GLOBALS['dbi']->fetchArray(PMA_queryAsControlUser($sql_query));
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if (isset($row['tracking_active']) && $row['tracking_active'] == 1) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Returns the comment line for the log.
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*
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* @return string Comment, contains date and username
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*/
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static public function getLogComment()
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{
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$date = date('Y-m-d H:i:s');
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return "# log " . $date . " " . $GLOBALS['cfg']['Server']['user'] . "\n";
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}
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/**
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* Creates tracking version of a table / view
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* (in other words: create a job to track future changes on the table).
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*
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* @param string $dbname name of database
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* @param string $tablename name of table
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* @param string $version version
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* @param string $tracking_set set of tracking statements
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* @param bool $is_view if table is a view
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*
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* @static
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*
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* @return int result of version insertion
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*/
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static public function createVersion($dbname, $tablename, $version,
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$tracking_set = '', $is_view = false
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) {
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global $sql_backquotes, $export_type;
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if ($tracking_set == '') {
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$tracking_set = self::$default_tracking_set;
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}
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// get Export SQL instance
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include_once "libraries/plugin_interface.lib.php";
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$export_sql_plugin = PMA_getPlugin(
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"export",
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"sql",
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'libraries/plugins/export/',
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array(
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'export_type' => $export_type,
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'single_table' => false,
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)
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);
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$sql_backquotes = true;
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$date = date('Y-m-d H:i:s');
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// Get data definition snapshot of table
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$columns = $GLOBALS['dbi']->getColumns($dbname, $tablename, null, true);
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// int indices to reduce size
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$columns = array_values($columns);
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// remove Privileges to reduce size
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for ($i = 0; $i < count($columns); $i++) {
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unset($columns[$i]['Privileges']);
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}
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$indexes = $GLOBALS['dbi']->getTableIndexes($dbname, $tablename);
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$snapshot = array('COLUMNS' => $columns, 'INDEXES' => $indexes);
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$snapshot = serialize($snapshot);
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// Get DROP TABLE / DROP VIEW and CREATE TABLE SQL statements
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$sql_backquotes = true;
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$create_sql = "";
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if (self::$add_drop_table == true && $is_view == false) {
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$create_sql .= self::getLogComment()
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. 'DROP TABLE IF EXISTS ' . PMA_Util::backquote($tablename) . ";\n";
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}
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if (self::$add_drop_view == true && $is_view == true) {
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$create_sql .= self::getLogComment()
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. 'DROP VIEW IF EXISTS ' . PMA_Util::backquote($tablename) . ";\n";
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}
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$create_sql .= self::getLogComment() .
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$export_sql_plugin->getTableDef($dbname, $tablename, "\n", "");
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// Save version
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$sql_query = "/*NOTRACK*/\n" .
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"INSERT INTO" . self::$pma_table . " (" .
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"db_name, " .
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"table_name, " .
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"version, " .
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"date_created, " .
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"date_updated, " .
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"schema_snapshot, " .
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"schema_sql, " .
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"data_sql, " .
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"tracking " .
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") " .
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"values (
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'" . PMA_Util::sqlAddSlashes($dbname) . "',
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'" . PMA_Util::sqlAddSlashes($tablename) . "',
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'" . PMA_Util::sqlAddSlashes($version) . "',
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'" . PMA_Util::sqlAddSlashes($date) . "',
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'" . PMA_Util::sqlAddSlashes($date) . "',
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'" . PMA_Util::sqlAddSlashes($snapshot) . "',
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'" . PMA_Util::sqlAddSlashes($create_sql) . "',
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'" . PMA_Util::sqlAddSlashes("\n") . "',
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'" . PMA_Util::sqlAddSlashes(self::_transformTrackingSet($tracking_set))
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. "' )";
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$result = PMA_queryAsControlUser($sql_query);
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if ($result) {
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// Deactivate previous version
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self::deactivateTracking($dbname, $tablename, ($version - 1));
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}
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return $result;
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}
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/**
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* Removes all tracking data for a table
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*
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* @param string $dbname name of database
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* @param string $tablename name of table
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*
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* @static
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*
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* @return int result of version insertion
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*/
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static public function deleteTracking($dbname, $tablename)
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{
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$sql_query = "/*NOTRACK*/\n"
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. "DELETE FROM " . self::$pma_table
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. " WHERE `db_name` = '"
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. PMA_Util::sqlAddSlashes($dbname) . "'"
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. " AND `table_name` = '"
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. PMA_Util::sqlAddSlashes($tablename) . "'";
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$result = PMA_queryAsControlUser($sql_query);
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return $result;
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}
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/**
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* Creates tracking version of a database
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* (in other words: create a job to track future changes on the database).
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*
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* @param string $dbname name of database
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* @param string $version version
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* @param string $query query
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* @param string $tracking_set set of tracking statements
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*
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* @static
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*
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* @return int result of version insertion
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*/
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static public function createDatabaseVersion($dbname, $version, $query,
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$tracking_set = 'CREATE DATABASE,ALTER DATABASE,DROP DATABASE'
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) {
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$date = date('Y-m-d H:i:s');
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if ($tracking_set == '') {
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$tracking_set = self::$default_tracking_set;
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}
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$create_sql = "";
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if (self::$add_drop_database == true) {
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$create_sql .= self::getLogComment()
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. 'DROP DATABASE IF EXISTS ' . PMA_Util::backquote($dbname) . ";\n";
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}
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$create_sql .= self::getLogComment() . $query;
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// Save version
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$sql_query = "/*NOTRACK*/\n" .
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"INSERT INTO" . self::$pma_table . " (" .
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"db_name, " .
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"table_name, " .
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"version, " .
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"date_created, " .
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"date_updated, " .
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"schema_snapshot, " .
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"schema_sql, " .
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"data_sql, " .
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"tracking " .
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") " .
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"values (
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'" . PMA_Util::sqlAddSlashes($dbname) . "',
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'" . PMA_Util::sqlAddSlashes('') . "',
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'" . PMA_Util::sqlAddSlashes($version) . "',
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'" . PMA_Util::sqlAddSlashes($date) . "',
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'" . PMA_Util::sqlAddSlashes($date) . "',
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'" . PMA_Util::sqlAddSlashes('') . "',
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'" . PMA_Util::sqlAddSlashes($create_sql) . "',
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'" . PMA_Util::sqlAddSlashes("\n") . "',
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'" . PMA_Util::sqlAddSlashes(self::_transformTrackingSet($tracking_set))
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. "' )";
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$result = PMA_queryAsControlUser($sql_query);
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return $result;
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}
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/**
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* Changes tracking of a table.
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*
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* @param string $dbname name of database
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* @param string $tablename name of table
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* @param string $version version
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* @param integer $new_state the new state of tracking
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*
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* @static
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*
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* @return int result of SQL query
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*/
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static private function _changeTracking($dbname, $tablename,
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$version, $new_state
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) {
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$sql_query = " UPDATE " . self::$pma_table .
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" SET `tracking_active` = '" . $new_state . "' " .
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" WHERE `db_name` = '" . PMA_Util::sqlAddSlashes($dbname) . "' " .
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" AND `table_name` = '" . PMA_Util::sqlAddSlashes($tablename) . "' " .
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" AND `version` = '" . PMA_Util::sqlAddSlashes($version) . "' ";
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$result = PMA_queryAsControlUser($sql_query);
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return $result;
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}
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/**
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* Changes tracking data of a table.
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*
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* @param string $dbname name of database
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* @param string $tablename name of table
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* @param string $version version
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* @param string $type type of data(DDL || DML)
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* @param string|array $new_data the new tracking data
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*
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* @static
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*
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* @return bool result of change
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*/
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static public function changeTrackingData($dbname, $tablename,
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$version, $type, $new_data
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) {
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if ($type == 'DDL') {
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$save_to = 'schema_sql';
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} elseif ($type == 'DML') {
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$save_to = 'data_sql';
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} else {
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return false;
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}
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$date = date('Y-m-d H:i:s');
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$new_data_processed = '';
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if (is_array($new_data)) {
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foreach ($new_data as $data) {
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$new_data_processed .= '# log ' . $date . ' ' . $data['username']
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. PMA_Util::sqlAddSlashes($data['statement']) . "\n";
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}
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} else {
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$new_data_processed = $new_data;
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}
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$sql_query = " UPDATE " . self::$pma_table .
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" SET `" . $save_to . "` = '" . $new_data_processed . "' " .
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" WHERE `db_name` = '" . PMA_Util::sqlAddSlashes($dbname) . "' " .
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" AND `table_name` = '" . PMA_Util::sqlAddSlashes($tablename) . "' " .
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" AND `version` = '" . PMA_Util::sqlAddSlashes($version) . "' ";
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$result = PMA_queryAsControlUser($sql_query);
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return $result;
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}
|
|
|
|
/**
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|
* Activates tracking of a table.
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|
*
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|
* @param string $dbname name of database
|
|
* @param string $tablename name of table
|
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* @param string $version version
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|
*
|
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* @static
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*
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* @return int result of SQL query
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*/
|
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static public function activateTracking($dbname, $tablename, $version)
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{
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return self::_changeTracking($dbname, $tablename, $version, 1);
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}
|
|
|
|
|
|
/**
|
|
* Deactivates tracking of a table.
|
|
*
|
|
* @param string $dbname name of database
|
|
* @param string $tablename name of table
|
|
* @param string $version version
|
|
*
|
|
* @static
|
|
*
|
|
* @return int result of SQL query
|
|
*/
|
|
static public function deactivateTracking($dbname, $tablename, $version)
|
|
{
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return self::_changeTracking($dbname, $tablename, $version, 0);
|
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}
|
|
|
|
|
|
/**
|
|
* Gets the newest version of a tracking job
|
|
* (in other words: gets the HEAD version).
|
|
*
|
|
* @param string $dbname name of database
|
|
* @param string $tablename name of table
|
|
* @param string $statement tracked statement
|
|
*
|
|
* @static
|
|
*
|
|
* @return int (-1 if no version exists | > 0 if a version exists)
|
|
*/
|
|
static public function getVersion($dbname, $tablename, $statement = null)
|
|
{
|
|
$sql_query = " SELECT MAX(version) FROM " . self::$pma_table .
|
|
" WHERE `db_name` = '" . PMA_Util::sqlAddSlashes($dbname) . "' " .
|
|
" AND `table_name` = '" . PMA_Util::sqlAddSlashes($tablename) . "' ";
|
|
|
|
if ($statement != "") {
|
|
if (PMA_DRIZZLE) {
|
|
$sql_query .= ' AND tracking & '
|
|
. self::_transformTrackingSet($statement) . ' <> 0';
|
|
} else {
|
|
$sql_query .= " AND FIND_IN_SET('"
|
|
. $statement . "',tracking) > 0" ;
|
|
}
|
|
}
|
|
$row = $GLOBALS['dbi']->fetchArray(PMA_queryAsControlUser($sql_query));
|
|
return isset($row[0])
|
|
? $row[0]
|
|
: -1;
|
|
}
|
|
|
|
|
|
/**
|
|
* Gets the record of a tracking job.
|
|
*
|
|
* @param string $dbname name of database
|
|
* @param string $tablename name of table
|
|
* @param string $version version number
|
|
*
|
|
* @static
|
|
*
|
|
* @return mixed record DDM log, DDL log, structure snapshot, tracked
|
|
* statements.
|
|
*/
|
|
static public function getTrackedData($dbname, $tablename, $version)
|
|
{
|
|
if (! isset(self::$pma_table)) {
|
|
self::init();
|
|
}
|
|
$sql_query = " SELECT * FROM " . self::$pma_table .
|
|
" WHERE `db_name` = '" . PMA_Util::sqlAddSlashes($dbname) . "' ";
|
|
if (! empty($tablename)) {
|
|
$sql_query .= " AND `table_name` = '"
|
|
. PMA_Util::sqlAddSlashes($tablename) ."' ";
|
|
}
|
|
$sql_query .= " AND `version` = '" . PMA_Util::sqlAddSlashes($version)
|
|
. "' " . " ORDER BY `version` DESC LIMIT 1";
|
|
|
|
$mixed = $GLOBALS['dbi']->fetchAssoc(PMA_queryAsControlUser($sql_query));
|
|
|
|
// Parse log
|
|
$log_schema_entries = explode('# log ', $mixed['schema_sql']);
|
|
$log_data_entries = explode('# log ', $mixed['data_sql']);
|
|
|
|
$ddl_date_from = $date = date('Y-m-d H:i:s');
|
|
|
|
$ddlog = array();
|
|
$i = 0;
|
|
|
|
// Iterate tracked data definition statements
|
|
// For each log entry we want to get date, username and statement
|
|
foreach ($log_schema_entries as $log_entry) {
|
|
if (trim($log_entry) != '') {
|
|
$date = substr($log_entry, 0, 19);
|
|
$username = substr($log_entry, 20, strpos($log_entry, "\n") - 20);
|
|
if ($i == 0) {
|
|
$ddl_date_from = $date;
|
|
}
|
|
$statement = rtrim(strstr($log_entry, "\n"));
|
|
|
|
$ddlog[] = array( 'date' => $date,
|
|
'username'=> $username,
|
|
'statement' => $statement );
|
|
$i++;
|
|
}
|
|
}
|
|
|
|
$date_from = $ddl_date_from;
|
|
$ddl_date_to = $date;
|
|
|
|
$dml_date_from = $date_from;
|
|
|
|
$dmlog = array();
|
|
$i = 0;
|
|
|
|
// Iterate tracked data manipulation statements
|
|
// For each log entry we want to get date, username and statement
|
|
foreach ($log_data_entries as $log_entry) {
|
|
if (trim($log_entry) != '') {
|
|
$date = substr($log_entry, 0, 19);
|
|
$username = substr($log_entry, 20, strpos($log_entry, "\n") - 20);
|
|
if ($i == 0) {
|
|
$dml_date_from = $date;
|
|
}
|
|
$statement = rtrim(strstr($log_entry, "\n"));
|
|
|
|
$dmlog[] = array( 'date' => $date,
|
|
'username' => $username,
|
|
'statement' => $statement );
|
|
$i++;
|
|
}
|
|
}
|
|
|
|
$dml_date_to = $date;
|
|
|
|
// Define begin and end of date range for both logs
|
|
if (strtotime($ddl_date_from) <= strtotime($dml_date_from)) {
|
|
$data['date_from'] = $ddl_date_from;
|
|
} else {
|
|
$data['date_from'] = $dml_date_from;
|
|
}
|
|
if (strtotime($ddl_date_to) >= strtotime($dml_date_to)) {
|
|
$data['date_to'] = $ddl_date_to;
|
|
} else {
|
|
$data['date_to'] = $dml_date_to;
|
|
}
|
|
$data['ddlog'] = $ddlog;
|
|
$data['dmlog'] = $dmlog;
|
|
$data['tracking'] = self::_transformTrackingSet($mixed['tracking']);
|
|
$data['schema_snapshot'] = $mixed['schema_snapshot'];
|
|
|
|
return $data;
|
|
}
|
|
|
|
|
|
/**
|
|
* Parses a query. Gets
|
|
* - statement identifier (UPDATE, ALTER TABLE, ...)
|
|
* - type of statement, is it part of DDL or DML ?
|
|
* - tablename
|
|
*
|
|
* @param string $query query
|
|
*
|
|
* @static
|
|
* @todo: using PMA SQL Parser when possible
|
|
* @todo: support multi-table/view drops
|
|
*
|
|
* @return mixed Array containing identifier, type and tablename.
|
|
*
|
|
*/
|
|
static public function parseQuery($query)
|
|
{
|
|
|
|
// Usage of PMA_SQP does not work here
|
|
//
|
|
// require_once("libraries/sqlparser.lib.php");
|
|
// $parsed_sql = PMA_SQP_parse($query);
|
|
// $sql_info = PMA_SQP_analyze($parsed_sql);
|
|
|
|
$query = str_replace("\n", " ", $query);
|
|
$query = str_replace("\r", " ", $query);
|
|
|
|
$query = trim($query);
|
|
$query = trim($query, ' -');
|
|
|
|
$tokens = explode(" ", $query);
|
|
foreach ($tokens as $key => $value) {
|
|
$tokens[$key] = strtoupper($value);
|
|
}
|
|
|
|
// Parse USE statement, need it for SQL dump imports
|
|
if (substr($query, 0, 4) == 'USE ') {
|
|
$prefix = explode('USE ', $query);
|
|
$GLOBALS['db'] = self::getTableName($prefix[1]);
|
|
}
|
|
|
|
/*
|
|
* DDL statements
|
|
*/
|
|
|
|
$result['type'] = 'DDL';
|
|
|
|
// Parse CREATE VIEW statement
|
|
if (in_array('CREATE', $tokens) == true
|
|
&& in_array('VIEW', $tokens) == true
|
|
&& in_array('AS', $tokens) == true
|
|
) {
|
|
$result['identifier'] = 'CREATE VIEW';
|
|
|
|
$index = array_search('VIEW', $tokens);
|
|
|
|
$result['tablename'] = strtolower(
|
|
self::getTableName($tokens[$index + 1])
|
|
);
|
|
}
|
|
|
|
// Parse ALTER VIEW statement
|
|
if (in_array('ALTER', $tokens) == true
|
|
&& in_array('VIEW', $tokens) == true
|
|
&& in_array('AS', $tokens) == true
|
|
&& ! isset($result['identifier'])
|
|
) {
|
|
$result['identifier'] = 'ALTER VIEW';
|
|
|
|
$index = array_search('VIEW', $tokens);
|
|
|
|
$result['tablename'] = strtolower(
|
|
self::getTableName($tokens[$index + 1])
|
|
);
|
|
}
|
|
|
|
// Parse DROP VIEW statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 10) == 'DROP VIEW '
|
|
) {
|
|
$result['identifier'] = 'DROP VIEW';
|
|
|
|
$prefix = explode('DROP VIEW ', $query);
|
|
$str = strstr($prefix[1], 'IF EXISTS');
|
|
|
|
if ($str == false ) {
|
|
$str = $prefix[1];
|
|
}
|
|
$result['tablename'] = self::getTableName($str);
|
|
}
|
|
|
|
// Parse CREATE DATABASE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 15) == 'CREATE DATABASE'
|
|
) {
|
|
$result['identifier'] = 'CREATE DATABASE';
|
|
$str = str_replace('CREATE DATABASE', '', $query);
|
|
$str = str_replace('IF NOT EXISTS', '', $str);
|
|
|
|
$prefix = explode('DEFAULT ', $str);
|
|
|
|
$result['tablename'] = '';
|
|
$GLOBALS['db'] = self::getTableName($prefix[0]);
|
|
}
|
|
|
|
// Parse ALTER DATABASE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 14) == 'ALTER DATABASE'
|
|
) {
|
|
$result['identifier'] = 'ALTER DATABASE';
|
|
$result['tablename'] = '';
|
|
}
|
|
|
|
// Parse DROP DATABASE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 13) == 'DROP DATABASE'
|
|
) {
|
|
$result['identifier'] = 'DROP DATABASE';
|
|
$str = str_replace('DROP DATABASE', '', $query);
|
|
$str = str_replace('IF EXISTS', '', $str);
|
|
$GLOBALS['db'] = self::getTableName($str);
|
|
$result['tablename'] = '';
|
|
}
|
|
|
|
// Parse CREATE TABLE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 12) == 'CREATE TABLE'
|
|
) {
|
|
$result['identifier'] = 'CREATE TABLE';
|
|
$query = str_replace('IF NOT EXISTS', '', $query);
|
|
$prefix = explode('CREATE TABLE ', $query);
|
|
$suffix = explode('(', $prefix[1]);
|
|
$result['tablename'] = self::getTableName($suffix[0]);
|
|
}
|
|
|
|
// Parse ALTER TABLE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 12) == 'ALTER TABLE '
|
|
) {
|
|
$result['identifier'] = 'ALTER TABLE';
|
|
|
|
$prefix = explode('ALTER TABLE ', $query);
|
|
$suffix = explode(' ', $prefix[1]);
|
|
$result['tablename'] = self::getTableName($suffix[0]);
|
|
}
|
|
|
|
// Parse DROP TABLE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 11) == 'DROP TABLE '
|
|
) {
|
|
$result['identifier'] = 'DROP TABLE';
|
|
|
|
$prefix = explode('DROP TABLE ', $query);
|
|
$str = strstr($prefix[1], 'IF EXISTS');
|
|
|
|
if ($str == false ) {
|
|
$str = $prefix[1];
|
|
}
|
|
$result['tablename'] = self::getTableName($str);
|
|
}
|
|
|
|
// Parse CREATE INDEX statement
|
|
if (! isset($result['identifier'])
|
|
&& (substr($query, 0, 12) == 'CREATE INDEX'
|
|
|| substr($query, 0, 19) == 'CREATE UNIQUE INDEX'
|
|
|| substr($query, 0, 20) == 'CREATE SPATIAL INDEX')
|
|
) {
|
|
$result['identifier'] = 'CREATE INDEX';
|
|
$prefix = explode('ON ', $query);
|
|
$suffix = explode('(', $prefix[1]);
|
|
$result['tablename'] = self::getTableName($suffix[0]);
|
|
}
|
|
|
|
// Parse DROP INDEX statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 10) == 'DROP INDEX'
|
|
) {
|
|
$result['identifier'] = 'DROP INDEX';
|
|
$prefix = explode('ON ', $query);
|
|
$result['tablename'] = self::getTableName($prefix[1]);
|
|
}
|
|
|
|
// Parse RENAME TABLE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 13) == 'RENAME TABLE '
|
|
) {
|
|
$result['identifier'] = 'RENAME TABLE';
|
|
$prefix = explode('RENAME TABLE ', $query);
|
|
$names = explode(' TO ', $prefix[1]);
|
|
$result['tablename'] = self::getTableName($names[0]);
|
|
$result["tablename_after_rename"] = self::getTableName($names[1]);
|
|
}
|
|
|
|
/*
|
|
* DML statements
|
|
*/
|
|
|
|
if (! isset($result['identifier'])) {
|
|
$result["type"] = 'DML';
|
|
}
|
|
// Parse UPDATE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 6) == 'UPDATE'
|
|
) {
|
|
$result['identifier'] = 'UPDATE';
|
|
$prefix = explode('UPDATE ', $query);
|
|
$suffix = explode(' ', $prefix[1]);
|
|
$result['tablename'] = self::getTableName($suffix[0]);
|
|
}
|
|
|
|
// Parse INSERT INTO statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 11) == 'INSERT INTO'
|
|
) {
|
|
$result['identifier'] = 'INSERT';
|
|
$prefix = explode('INSERT INTO', $query);
|
|
$suffix = explode('(', $prefix[1]);
|
|
$result['tablename'] = self::getTableName($suffix[0]);
|
|
}
|
|
|
|
// Parse DELETE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 6) == 'DELETE'
|
|
) {
|
|
$result['identifier'] = 'DELETE';
|
|
$prefix = explode('FROM ', $query);
|
|
$suffix = explode(' ', $prefix[1]);
|
|
$result['tablename'] = self::getTableName($suffix[0]);
|
|
}
|
|
|
|
// Parse TRUNCATE statement
|
|
if (! isset($result['identifier'])
|
|
&& substr($query, 0, 8) == 'TRUNCATE'
|
|
) {
|
|
$result['identifier'] = 'TRUNCATE';
|
|
$prefix = explode('TRUNCATE', $query);
|
|
$result['tablename'] = self::getTableName($prefix[1]);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/**
|
|
* Analyzes a given SQL statement and saves tracking data.
|
|
*
|
|
* @param string $query a SQL query
|
|
*
|
|
* @static
|
|
*
|
|
* @return void
|
|
*/
|
|
static public function handleQuery($query)
|
|
{
|
|
// If query is marked as untouchable, leave
|
|
if (strstr($query, "/*NOTRACK*/")) {
|
|
return;
|
|
}
|
|
|
|
if (! (substr($query, -1) == ';')) {
|
|
$query = $query . ";\n";
|
|
}
|
|
// Get some information about query
|
|
$result = self::parseQuery($query);
|
|
|
|
// Get database name
|
|
$dbname = trim(isset($GLOBALS['db']) ? $GLOBALS['db'] : '', '`');
|
|
// $dbname can be empty, for example when coming from Synchronize
|
|
// and this is a query for the remote server
|
|
if (empty($dbname)) {
|
|
return;
|
|
}
|
|
// Remove null bytes (preg_replace() is vulnerable in some
|
|
// PHP versions)
|
|
$dbname = str_replace("\0", "", $dbname);
|
|
|
|
// If we found a valid statement
|
|
if (isset($result['identifier'])) {
|
|
$version = self::getVersion(
|
|
$dbname, $result['tablename'], $result['identifier']
|
|
);
|
|
|
|
// If version not exists and auto-creation is enabled
|
|
if (self::$version_auto_create == true
|
|
&& self::isTracked($dbname, $result['tablename']) == false
|
|
&& $version == -1
|
|
) {
|
|
// Create the version
|
|
|
|
switch ($result['identifier']) {
|
|
case 'CREATE TABLE':
|
|
self::createVersion($dbname, $result['tablename'], '1');
|
|
break;
|
|
case 'CREATE VIEW':
|
|
self::createVersion(
|
|
$dbname, $result['tablename'], '1', '', true
|
|
);
|
|
break;
|
|
case 'CREATE DATABASE':
|
|
self::createDatabaseVersion($dbname, '1', $query);
|
|
break;
|
|
} // end switch
|
|
}
|
|
|
|
// If version exists
|
|
if (self::isTracked($dbname, $result['tablename']) && $version != -1) {
|
|
if ($result['type'] == 'DDL') {
|
|
$save_to = 'schema_sql';
|
|
} elseif ($result['type'] == 'DML') {
|
|
$save_to = 'data_sql';
|
|
} else {
|
|
$save_to = '';
|
|
}
|
|
$date = date('Y-m-d H:i:s');
|
|
|
|
// Cut off `dbname`. from query
|
|
$query = preg_replace('/`' . $dbname . '`\s?\./', '', $query);
|
|
|
|
// Add log information
|
|
$query = self::getLogComment() . $query ;
|
|
|
|
// Mark it as untouchable
|
|
$sql_query = " /*NOTRACK*/\n"
|
|
. " UPDATE " . self::$pma_table
|
|
. " SET " . PMA_Util::backquote($save_to)
|
|
. " = CONCAT( " . PMA_Util::backquote($save_to) . ",'\n"
|
|
. PMA_Util::sqlAddSlashes($query) . "') ,"
|
|
. " `date_updated` = '" . $date . "' ";
|
|
|
|
// If table was renamed we have to change
|
|
// the tablename attribute in pma_tracking too
|
|
if ($result['identifier'] == 'RENAME TABLE') {
|
|
$sql_query .= ', `table_name` = \''
|
|
. PMA_Util::sqlAddSlashes($result['tablename_after_rename'])
|
|
. '\' ';
|
|
}
|
|
|
|
// Save the tracking information only for
|
|
// 1. the database
|
|
// 2. the table / view
|
|
// 3. the statements
|
|
// we want to track
|
|
$sql_query .=
|
|
" WHERE FIND_IN_SET('" . $result['identifier'] . "',tracking) > 0" .
|
|
" AND `db_name` = '" . PMA_Util::sqlAddSlashes($dbname) . "' " .
|
|
" AND `table_name` = '"
|
|
. PMA_Util::sqlAddSlashes($result['tablename']) . "' " .
|
|
" AND `version` = '" . PMA_Util::sqlAddSlashes($version) . "' ";
|
|
|
|
$result = PMA_queryAsControlUser($sql_query);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Transforms tracking set for Drizzle, which has no SET type
|
|
*
|
|
* Converts int<>string for Drizzle, does nothing for MySQL
|
|
*
|
|
* @param int|string $tracking_set Set to convert
|
|
*
|
|
* @return int|string
|
|
*/
|
|
static private function _transformTrackingSet($tracking_set)
|
|
{
|
|
if (!PMA_DRIZZLE) {
|
|
return $tracking_set;
|
|
}
|
|
|
|
// init conversion array (key 3 doesn't exist in calculated array)
|
|
if (isset(self::$_tracking_set_flags[3])) {
|
|
// initialize flags
|
|
$set = self::$_tracking_set_flags;
|
|
$array = array();
|
|
for ($i = 0; $i < count($set); $i++) {
|
|
$flag = 1 << $i;
|
|
$array[$flag] = $set[$i];
|
|
$array[$set[$i]] = $flag;
|
|
}
|
|
self::$_tracking_set_flags = $array;
|
|
}
|
|
|
|
if (is_numeric($tracking_set)) {
|
|
// int > string conversion
|
|
$aflags = array();
|
|
// count/2 - conversion table has both int > string
|
|
// and string > int values
|
|
for ($i = 0; $i < count(self::$_tracking_set_flags)/2; $i++) {
|
|
$flag = 1 << $i;
|
|
if ($tracking_set & $flag) {
|
|
$aflags[] = self::$_tracking_set_flags[$flag];
|
|
}
|
|
}
|
|
$flags = implode(',', $aflags);
|
|
} else {
|
|
// string > int conversion
|
|
$flags = 0;
|
|
foreach (explode(',', $tracking_set) as $strflag) {
|
|
if ($strflag == '') {
|
|
continue;
|
|
}
|
|
$flags |= self::$_tracking_set_flags[$strflag];
|
|
}
|
|
}
|
|
|
|
return $flags;
|
|
}
|
|
}
|
|
?>
|