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<?php |
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|
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if (!defined('ABSPATH')) die('No direct access allowed'); |
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|
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class WP_Optimize_Database_Information { |
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|
| 7 |
const UNKNOWN_DB = 'unknown'; |
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const MARIA_DB = 'MariaDB'; |
| 9 |
const PERCONA_DB = 'Percona'; |
| 10 |
// for some reason coding standard parser give error here WordPress.DB.RestrictedFunctions.mysql_mysql_db |
| 11 |
// @codingStandardsIgnoreLine |
| 12 |
const MYSQL_DB = 'MysqlDB'; |
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|
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const MYISAM_ENGINE = 'MyISAM'; |
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const MEMORY_ENGINE = 'Memory'; |
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const INNODB_ENGINE = 'InnoDB'; |
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const ARCHIVE_ENGINE = 'ARCHIVE'; |
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const CSV_ENGINE = 'CSV'; |
| 19 |
const NDB_ENGINE = 'NDB'; |
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const ARIA_ENGINE = 'Aria'; // MariaDB |
| 21 |
const VIEW = 'VIEW'; |
| 22 |
|
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/** |
| 24 |
* Returns server type MySQL or MariaDB if mysql database or Unknown if not mysql. |
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* |
| 26 |
* @return string |
| 27 |
*/ |
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public function get_server_type() { |
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global $wpdb; |
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static $server_type = null; |
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|
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if (!$wpdb->is_mysql) return self::UNKNOWN_DB; |
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|
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if (null !== $server_type) return $server_type; |
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|
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$server_type = self::MYSQL_DB; |
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|
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$variables = $wpdb->get_results('SHOW SESSION VARIABLES LIKE "version%"'); |
| 39 |
|
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if (!empty($variables)) { |
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foreach ($variables as $variable) { |
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if (preg_match('/mariadb/i', $variable->Value)) { |
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$server_type = self::MARIA_DB; |
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} |
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if (preg_match('/percona/i', $variable->Value)) { |
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$server_type = self::PERCONA_DB; |
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} |
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} |
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} |
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|
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return $server_type; |
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} |
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|
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/** |
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* Returns database server version |
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* |
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* @return string|bool |
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*/ |
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public function get_version() { |
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$version = $this->get_option_value('version'); |
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|
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if (!empty($version)) { |
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if (preg_match('/^(\d+)(\.\d+)+/', $version, $match)) { |
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return $match[0]; |
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} |
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} |
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|
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return false; |
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} |
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|
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/** |
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* Return table type by $table_name. |
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* |
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* @param String $table_name Database table name. |
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* @return String|Boolean - returns false upon failure |
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*/ |
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public function get_table_type($table_name) { |
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$table_info = $this->get_table_status($table_name); |
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|
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if ($table_info) { |
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if (!$table_info->Engine && $this->is_view($table_name)) return self::VIEW; |
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|
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return $table_info->Engine; |
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} |
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|
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return false; |
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} |
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|
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/** |
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* Returns information about database table. |
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* |
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* @param string $table_name |
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* @param bool $update if true, then force request to database and don't use cached values. |
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* @return bool|mixed |
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*/ |
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public function get_table_status($table_name, $update = false) { |
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global $wpdb; |
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|
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if (false == $update) { |
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$tables_info = $this->get_show_table_status(); |
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|
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foreach ($tables_info as $table_info) { |
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if ($table_name == $table_info->Name) return $table_info; |
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} |
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} else { |
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return $wpdb->get_row($wpdb->prepare('SHOW TABLE STATUS LIKE %s;', $table_name)); |
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} |
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|
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return false; |
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} |
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|
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/** |
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* Returns result for query SHOW TABLE STATUS. |
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* |
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* @return array |
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*/ |
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public function get_show_table_status() { |
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global $wpdb; |
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static $tables_info = array(); |
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|
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if (empty($tables_info) || !is_array($tables_info)) { |
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$tables_info = $wpdb->get_results('SHOW TABLE STATUS'); |
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} |
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|
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// If option innodb_file_per_table is disabled then Data_free column will have summary overhead value for all table. |
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if (!empty($tables_info)) { |
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foreach ($tables_info as $i => $table) { |
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if (self::INNODB_ENGINE == $table->Engine && false == $this->is_option_enabled('innodb_file_per_table')) { |
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$tables_info[$i]->Data_free = 0; |
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} |
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} |
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} |
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|
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return $tables_info; |
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} |
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|
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/** |
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* Returns result for query SHOW FULL TABLES as associative array [table_name] => table_type. |
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* |
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* @return array |
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*/ |
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public function get_show_full_tables() { |
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global $wpdb; |
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|
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static $tables_info = array(); |
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|
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if (empty($tables_info) || !is_array($tables_info)) { |
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$_tables_info = $wpdb->get_results('SHOW FULL TABLES', ARRAY_N); |
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|
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if (!empty($_tables_info)) { |
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foreach ($_tables_info as $row) { |
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$tables_info[$row[0]] = $row[1]; |
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} |
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} |
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} |
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|
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return $tables_info; |
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} |
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|
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/** |
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* Checks if table is a VIEW. |
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* |
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* @param string $table_name |
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* @return bool |
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*/ |
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public function is_view($table_name) { |
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$tables_info = $this->get_show_full_tables(); |
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|
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if (!array_key_exists($table_name, $tables_info)) return false; |
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|
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return ('VIEW' == $tables_info[$table_name]); |
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} |
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|
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/** |
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* Returns true if DDL supported. |
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* |
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* @return bool |
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*/ |
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public function has_online_ddl() { |
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if (self::MYSQL_DB == $this->get_server_type()) { |
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if (version_compare($this->get_version(), '5.7', '>=')) { |
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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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} elseif (self::MARIA_DB == $this->get_server_type()) { |
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if (version_compare($this->get_version(), '10.0.0', '>=')) { |
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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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return false; |
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} |
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|
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/** |
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* Returns database option variable |
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* |
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* @param string $option_name Name of database option. |
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* @return mixed|null |
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*/ |
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public function get_option_value($option_name) { |
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global $wpdb; |
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static $options = array(); |
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|
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if (array_key_exists($option_name, $options)) return $options[$option_name]; |
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|
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$option = $wpdb->get_row( |
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$wpdb->prepare('SHOW SESSION VARIABLES LIKE %s', $option_name) |
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); |
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|
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if (!empty($option)) { |
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$options[$option_name] = $option->Value; |
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return $option->Value; |
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} |
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|
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return null; |
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} |
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|
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/** |
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* Returns true if database option $option_name |
| 223 |
* |
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* @param string $option_name Name of database option name. |
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* @return bool |
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*/ |
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public function is_option_enabled($option_name) { |
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$option_value = $this->get_option_value($option_name); |
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|
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if ('ON' == strtoupper($option_value)) return true; |
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return false; |
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} |
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|
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/** |
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* Returns true if table $table_name is optimizable |
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* |
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* @param string $table_name Name of database table |
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* @return bool |
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*/ |
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public function is_table_optimizable($table_name) { |
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$server_type = $this->get_server_type(); |
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$server_version = $this->get_version(); |
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$table_type = $this->get_table_type($table_name); |
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|
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// return true if table is MyISAM. |
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if (self::MYISAM_ENGINE == $table_type) return true; |
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|
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// return true if table is Archive or Aria. |
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if (self::ARCHIVE_ENGINE == $table_type || self::ARIA_ENGINE == $table_type) return true; |
| 250 |
|
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// if InnoDB then check if we can optimize. |
| 252 |
if (self::INNODB_ENGINE == $table_type) { |
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// check for MysqlDB. |
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if (self::MYSQL_DB == $server_type && $this->has_online_ddl()) { |
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return true; |
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} |
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|
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// check for MariaDB. |
| 259 |
if (self::MARIA_DB == $server_type) { |
| 260 |
// if innodb_file_per_table enabled or version not older than 10.1.1 and innodb_defragment enabled. |
| 261 |
if ($this->is_option_enabled('innodb_file_per_table') || (version_compare($server_version, '10.1.1', '>=') && $this->is_option_enabled('innodb_defragment'))) { |
| 262 |
return true; |
| 263 |
} |
| 264 |
} |
| 265 |
} |
| 266 |
|
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// otherwise return false. |
| 268 |
return false; |
| 269 |
} |
| 270 |
|
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/** |
| 272 |
* Returns true if table type is supported for optimization. |
| 273 |
* |
| 274 |
* @param string $table_name Name of database table |
| 275 |
* @return bool |
| 276 |
*/ |
| 277 |
public function is_table_type_optimize_supported($table_name) { |
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$table_type = $this->get_table_type($table_name); |
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|
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$supported_table_types = array( |
| 281 |
self::MYISAM_ENGINE, |
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self::INNODB_ENGINE, |
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self::ARCHIVE_ENGINE, |
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self::ARIA_ENGINE, |
| 285 |
); |
| 286 |
|
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return in_array($table_type, $supported_table_types); |
| 288 |
} |
| 289 |
|
| 290 |
/** |
| 291 |
* Returns true if table type is supported for repair. |
| 292 |
* |
| 293 |
* @param string $table_name |
| 294 |
* @return bool |
| 295 |
*/ |
| 296 |
public function is_table_type_repair_supported($table_name) { |
| 297 |
$table_type = $this->get_table_type($table_name); |
| 298 |
|
| 299 |
$supported_table_types = array( |
| 300 |
self::MYISAM_ENGINE, |
| 301 |
self::ARCHIVE_ENGINE, |
| 302 |
self::CSV_ENGINE, |
| 303 |
); |
| 304 |
|
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return in_array($table_type, $supported_table_types); |
| 306 |
} |
| 307 |
|
| 308 |
/** |
| 309 |
* Run CHECK TABLE query and returns statuses for single or list of tables. |
| 310 |
* |
| 311 |
* @param array|string $table |
| 312 |
*/ |
| 313 |
public function check_table($table) { |
| 314 |
global $wpdb; |
| 315 |
|
| 316 |
if (is_array($table)) { |
| 317 |
$table = join(',', $table); |
| 318 |
} |
| 319 |
|
| 320 |
$result = array(); |
| 321 |
|
| 322 |
if (empty($table)) return $result; |
| 323 |
|
| 324 |
$query_result = $wpdb->get_results('CHECK TABLE '.$table.';'); |
| 325 |
|
| 326 |
if (empty($query_result)) return $result; |
| 327 |
|
| 328 |
foreach ($query_result as $row) { |
| 329 |
$table_name_parts = explode('.', rtrim($row->Table, ' .')); |
| 330 |
$table_name = array_pop($table_name_parts); |
| 331 |
|
| 332 |
if (!array_key_exists($table_name, $result)) { |
| 333 |
$result[$table_name] = array( |
| 334 |
'status' => '', |
| 335 |
'corrupted' => false, |
| 336 |
); |
| 337 |
} |
| 338 |
|
| 339 |
if ('error' == $row->Msg_type) { |
| 340 |
$result[$table_name]['status'] = $row->Msg_type; |
| 341 |
|
| 342 |
if (preg_match('/corrupt/i', $row->Msg_text)) { |
| 343 |
$result[$table_name]['corrupted'] = true; |
| 344 |
} else { |
| 345 |
$result[$table_name]['message'] = $row->Msg_text; |
| 346 |
} |
| 347 |
} |
| 348 |
|
| 349 |
if ('status' == $row->Msg_type) { |
| 350 |
$result[$table_name]['status'] = $row->Msg_text; |
| 351 |
} |
| 352 |
} |
| 353 |
|
| 354 |
return $result; |
| 355 |
} |
| 356 |
|
| 357 |
/** |
| 358 |
* Check all supported for repair tables and return statuses for them. |
| 359 |
* |
| 360 |
* @return array |
| 361 |
*/ |
| 362 |
public function check_all_tables() { |
| 363 |
static $result = null; |
| 364 |
|
| 365 |
if (null !== $result) return $result; |
| 366 |
|
| 367 |
$tables = $this->get_show_table_status(); |
| 368 |
$supported_tables = array(); |
| 369 |
|
| 370 |
foreach ($tables as $table) { |
| 371 |
if ('' == $table->Engine || $this->is_table_type_repair_supported($table->Name)) { |
| 372 |
$supported_tables[] = $table->Name; |
| 373 |
} |
| 374 |
} |
| 375 |
|
| 376 |
$result = $this->check_table($supported_tables); |
| 377 |
|
| 378 |
return $result; |
| 379 |
} |
| 380 |
|
| 381 |
/** |
| 382 |
* Returns true if table needing repair. |
| 383 |
* |
| 384 |
* @param string $table_name Database table name. |
| 385 |
*/ |
| 386 |
public function is_table_needing_repair($table_name) { |
| 387 |
$table_statuses = $this->check_all_tables(); |
| 388 |
|
| 389 |
if (is_array($table_statuses) && array_key_exists($table_name, $table_statuses) && $table_statuses[$table_name]['corrupted']) { |
| 390 |
return true; |
| 391 |
} else { |
| 392 |
return false; |
| 393 |
} |
| 394 |
} |
| 395 |
|
| 396 |
/** |
| 397 |
* Check if $table using by any of installed plugins. |
| 398 |
* |
| 399 |
* @param string $table |
| 400 |
* @return bool |
| 401 |
*/ |
| 402 |
public function is_table_using_by_plugin($table) { |
| 403 |
$plugin_name = $this->get_table_plugin($table); |
| 404 |
|
| 405 |
// if we can't determine which plugin use $table then return true. |
| 406 |
if (false == $plugin_name) { |
| 407 |
return true; |
| 408 |
} |
| 409 |
|
| 410 |
// is WordPress core table or using by any of installed plugins then return true. |
| 411 |
if (__('WordPress core', 'wp-optimize') == $plugin_name || in_array($plugin_name, $this->get_all_installed_plugins())) { |
| 412 |
return true; |
| 413 |
} |
| 414 |
|
| 415 |
return false; |
| 416 |
} |
| 417 |
|
| 418 |
/** |
| 419 |
* Get information about relations between tables and plugins. [ 'table' => 'plugin', ... ]. |
| 420 |
* |
| 421 |
* @return array |
| 422 |
*/ |
| 423 |
private function get_all_plugin_tables_relationship() { |
| 424 |
static $plugin_tables; |
| 425 |
|
| 426 |
$wp_core_tables = array( |
| 427 |
'blogs', |
| 428 |
'blogversions', |
| 429 |
'commentmeta', |
| 430 |
'comments', |
| 431 |
'links', |
| 432 |
'options', |
| 433 |
'postmeta', |
| 434 |
'posts', |
| 435 |
'term_relationships', |
| 436 |
'term_taxonomy', |
| 437 |
'termmeta', |
| 438 |
'terms', |
| 439 |
'usermeta', |
| 440 |
'users', |
| 441 |
'site', |
| 442 |
'sitemeta', |
| 443 |
); |
| 444 |
|
| 445 |
if (is_array($plugin_tables)) return $plugin_tables; |
| 446 |
|
| 447 |
$plugin_tables_json_file = WPO_PLUGIN_MAIN_PATH.'/plugin.json'; |
| 448 |
$plugin_tables = array(); |
| 449 |
|
| 450 |
if (is_file($plugin_tables_json_file) && is_readable($plugin_tables_json_file)) { |
| 451 |
// get data from plugin.json file. |
| 452 |
$plugin_tables = json_decode(file_get_contents($plugin_tables_json_file), true); |
| 453 |
} |
| 454 |
|
| 455 |
foreach ($wp_core_tables as $table) { |
| 456 |
$plugin_tables[$table] = __('WordPress core', 'wp-optimize'); |
| 457 |
} |
| 458 |
|
| 459 |
// add WP-Optimize tables. |
| 460 |
$plugin_tables['tm_taskmeta'] = 'wp-optimize'; |
| 461 |
$plugin_tables['tm_tasks'] = 'wp-optimize'; |
| 462 |
|
| 463 |
return $plugin_tables; |
| 464 |
} |
| 465 |
|
| 466 |
/** |
| 467 |
* Try to get plugin name by table name and return it or return false if plugin is not defined. |
| 468 |
* |
| 469 |
* @param string $table |
| 470 |
* @return string|bool |
| 471 |
*/ |
| 472 |
public function get_table_plugin($table) { |
| 473 |
global $wpdb; |
| 474 |
|
| 475 |
// delete table prefix. |
| 476 |
$table = preg_replace('/^'.$wpdb->prefix.'([0-9]+_)?/', '', $table); |
| 477 |
$plugins_tables = $this->get_all_plugin_tables_relationship(); |
| 478 |
|
| 479 |
if (array_key_exists($table, $plugins_tables)) { |
| 480 |
return $plugins_tables[$table]; |
| 481 |
} |
| 482 |
|
| 483 |
return false; |
| 484 |
} |
| 485 |
|
| 486 |
/** |
| 487 |
* Get all installed plugin slugs. |
| 488 |
* |
| 489 |
* @return array |
| 490 |
*/ |
| 491 |
public function get_all_installed_plugins() { |
| 492 |
static $installed_plugins; |
| 493 |
|
| 494 |
if (is_array($installed_plugins)) return $installed_plugins; |
| 495 |
|
| 496 |
$installed_plugins = array(); |
| 497 |
|
| 498 |
if (!function_exists('get_plugins')) include_once(ABSPATH.'wp-admin/includes/plugin.php'); |
| 499 |
|
| 500 |
$plugins = get_plugins(); |
| 501 |
|
| 502 |
foreach ($plugins as $plugin_file => $plugin_data) { |
| 503 |
if ('' != $plugin_data['TextDomain']) { |
| 504 |
$installed_plugins[] = $plugin_data['TextDomain']; |
| 505 |
} else { |
| 506 |
$plugin_file_parts = explode('/', $plugin_file); |
| 507 |
$installed_plugins[]= $plugin_file_parts[0]; |
| 508 |
} |
| 509 |
} |
| 510 |
|
| 511 |
return $installed_plugins; |
| 512 |
} |
| 513 |
|
| 514 |
/** |
| 515 |
* Check current plugin status installed/not installed and active/inactive. |
| 516 |
* |
| 517 |
* @param string $plugin |
| 518 |
* @return array - ['installed' => true|false, 'active' => true|false] |
| 519 |
*/ |
| 520 |
public function get_plugin_status($plugin) { |
| 521 |
$plugins = get_plugins(); |
| 522 |
|
| 523 |
// return true for wp-optimize without checking. |
| 524 |
if ('wp-optimize' == $plugin) { |
| 525 |
return array( |
| 526 |
'installed' => true, |
| 527 |
'active' => true, |
| 528 |
); |
| 529 |
} |
| 530 |
|
| 531 |
$installed = false; |
| 532 |
$active = false; |
| 533 |
|
| 534 |
foreach ($plugins as $plugin_file => $plugin_data) { |
| 535 |
if ('' != $plugin_data['TextDomain']) { |
| 536 |
$plugin_slug = $plugin_data['TextDomain']; |
| 537 |
} else { |
| 538 |
$plugin_file_parts = explode('/', $plugin_file); |
| 539 |
$plugin_slug = $plugin_file_parts[0]; |
| 540 |
} |
| 541 |
|
| 542 |
if ($plugin == $plugin_slug) { |
| 543 |
$installed = true; |
| 544 |
$active = is_plugin_active($plugin_file); |
| 545 |
} |
| 546 |
} |
| 547 |
|
| 548 |
return array( |
| 549 |
'installed' => $installed, |
| 550 |
'active' => $active, |
| 551 |
); |
| 552 |
} |
| 553 |
} |
| 554 |
|
