395 lines
9.9 KiB
PHP
395 lines
9.9 KiB
PHP
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<?php
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namespace W3TC;
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/**
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* class Config
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* Provides configuration data using cache
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*/
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class ConfigDbStorage {
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/**
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* Reads config from database
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* Stored in this class to limit class loading
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*/
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static public function util_array_from_storage( $blog_id, $preview ) {
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$content = self::load_content( $blog_id, $preview );
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$config = @json_decode( $content, true );
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if ( is_array( $config ) )
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return $config;
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return null;
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}
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static public function is_item_exists( $blog_id, $preview ) {
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$content = self::load_content( $blog_id, $preview );
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return is_null( $content );
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}
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static public function remove_item( $blog_id, $preview ) {
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$table = self::get_table( $blog_id );
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$option_name = self::get_option_name( $blog_id, $preview );
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global $wpdb;
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$wpdb->query( $wpdb->prepare(
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"DELETE FROM $table WHERE option_name = %s",
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$option_name ) );
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}
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/**
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* Deploys the config file from a preview config file
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*
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* @param integer $direction +1: preview->production
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* -1: production->preview
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* @param boolean $remove_source remove source file
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*/
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static public function preview_production_copy( $blog_id, $direction ) {
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if ( $direction > 0 ) {
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$content = self::load_content( $blog_id, true );
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self::save_item( $blog_id, false, $content );
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} else {
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$content = self::load_content( $blog_id, false );
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self::save_item( $blog_id, true, $content );
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}
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}
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static public function save_item( $blog_id, $preview, $data ) {
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if ( is_string( $data ) ) {
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$config = $data;
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} else {
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$config = json_encode( $data );
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}
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$table = self::get_table( $blog_id );
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$option_name = self::get_option_name( $blog_id, $preview );
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global $wpdb;
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$is_exists = !is_null( self::load_content( $blog_id, $preview ) );
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if ( $is_exists ) {
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$wpdb->query( $wpdb->prepare(
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"UPDATE $table SET option_value = %s WHERE option_name = %s",
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$config, $option_name ) );
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} else {
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$wpdb->query( $wpdb->prepare(
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"INSERT INTO $table (option_name, option_value) VALUES (%s, %s)",
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$option_name, $config ) );
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}
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}
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static private function get_table( $blog_id ) {
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if ( defined('W3TC_CONFIG_DATABASE_TABLE' ) ) {
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$template = W3TC_CONFIG_DATABASE_TABLE;
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} else {
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if ( is_multisite() ) {
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error_log( 'Please use W3TC_CONFIG_DATABASE_TABLE constant, funcationality without it is not stable in multisite mode' );
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}
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global $table_prefix;
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$template = $table_prefix . 'options';
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}
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if ( $blog_id <= 0 )
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$blog_id_prefix = '';
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else
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$blog_id_prefix = $blog_id . '_';
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return str_replace('{blog_id_prefix}', $blog_id_prefix, $template);
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}
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static private function get_option_name( $blog_id, $preview ) {
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return 'w3tc_config_' . $blog_id . ( $preview ? '_preview' : '' );
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}
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static private function load_content( $blog_id, $preview ) {
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$table = self::get_table( $blog_id );
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$option_name = self::get_option_name( $blog_id, $preview );
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if ( isset( $GLOBALS['wpdb'] ) ) {
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global $wpdb;
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$row = $wpdb->get_row( $wpdb->prepare(
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"SELECT option_value FROM $table WHERE option_name = %s LIMIT 1",
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$option_name ) );
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} else {
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$db = new _WpdbEssentials( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );
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if ( $db->ready ) {
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$row = $db->get_row( $db->prepare(
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"SELECT option_value FROM $table WHERE option_name = %s LIMIT 1",
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$option_name ) );
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} else {
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error_log('Failed to load w3tc config');
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$row = null;
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}
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// close connection immediately so that real pooled connection may be
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// reused by later inialized wpdb object
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$db->close();
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}
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if ( is_object( $row ) ) {
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return $row->option_value;
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}
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return null;
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}
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}
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class _WpdbEssentials {
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public $last_error = '';
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public $num_rows = 0;
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var $rows_affected = 0;
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var $last_query;
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var $last_result;
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public function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) {
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if ( function_exists( 'mysqli_connect' ) ) {
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if ( defined( 'WP_USE_EXT_MYSQL' ) ) {
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$this->use_mysqli = ! WP_USE_EXT_MYSQL;
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} elseif ( version_compare( phpversion(), '5.5', '>=' ) || ! function_exists( 'mysql_connect' ) ) {
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$this->use_mysqli = true;
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} elseif ( false !== strpos( $GLOBALS['wp_version'], '-' ) ) {
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$this->use_mysqli = true;
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}
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}
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$this->dbuser = $dbuser;
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$this->dbpassword = $dbpassword;
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$this->dbname = $dbname;
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$this->dbhost = $dbhost;
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$this->db_connect();
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}
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public function db_connect( $allow_bail = true ) {
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$this->is_mysql = true;
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/*
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* Deprecated in 3.9+ when using MySQLi. No equivalent
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* $new_link parameter exists for mysqli_* functions.
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*/
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$new_link = defined( 'MYSQL_NEW_LINK' ) ? MYSQL_NEW_LINK : true;
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$client_flags = defined( 'MYSQL_CLIENT_FLAGS' ) ? MYSQL_CLIENT_FLAGS : 0;
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if ( $this->use_mysqli ) {
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$this->dbh = mysqli_init();
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// mysqli_real_connect doesn't support the host param including a port or socket
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// like mysql_connect does. This duplicates how mysql_connect detects a port and/or socket file.
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$port = null;
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$socket = null;
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$host = $this->dbhost;
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$port_or_socket = strstr( $host, ':' );
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if ( ! empty( $port_or_socket ) ) {
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$host = substr( $host, 0, strpos( $host, ':' ) );
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$port_or_socket = substr( $port_or_socket, 1 );
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if ( 0 !== strpos( $port_or_socket, '/' ) ) {
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$port = intval( $port_or_socket );
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$maybe_socket = strstr( $port_or_socket, ':' );
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if ( ! empty( $maybe_socket ) ) {
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$socket = substr( $maybe_socket, 1 );
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}
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} else {
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$socket = $port_or_socket;
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}
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}
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if ( WP_DEBUG ) {
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mysqli_real_connect( $this->dbh, $host, $this->dbuser, $this->dbpassword, null, $port, $socket, $client_flags );
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} else {
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@mysqli_real_connect( $this->dbh, $host, $this->dbuser, $this->dbpassword, null, $port, $socket, $client_flags );
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}
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if ( $this->dbh->connect_errno ) {
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$this->dbh = null;
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$this->last_error =
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'Connection failed with ' . $this->dbh->connect_errno . ' error code';
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if ( WP_DEBUG ) {
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echo esc_html( $this->last_error );
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}
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}
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} else {
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if ( WP_DEBUG ) {
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$this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
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} else {
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$this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
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}
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}
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if ( $this->dbh ) {
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$this->has_connected = true;
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$this->ready = true;
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$this->select( $this->dbname, $this->dbh );
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} else {
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if ( WP_DEBUG ) {
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esc_html_e( 'Failed to connect to mysql server', 'w3-total-cache' );
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}
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}
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}
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public function select( $db, $dbh = null ) {
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if ( $this->use_mysqli ) {
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$success = mysqli_select_db( $dbh, $db );
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} else {
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$success = mysql_select_db( $db, $dbh );
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}
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if ( ! $success ) {
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$this->ready = false;
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if ( WP_DEBUG ) {
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esc_html_e( 'Failed to select database', 'w3-total-cache' );
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}
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}
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}
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public function prepare( $query, $args ) {
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$args = func_get_args();
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array_shift( $args );
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// If args were passed as an array (as in vsprintf), move them up
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if ( isset( $args[0] ) && is_array($args[0]) )
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$args = $args[0];
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$query = str_replace( "'%s'", '%s', $query ); // in case someone mistakenly already singlequoted it
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$query = str_replace( '"%s"', '%s', $query ); // doublequote unquoting
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$query = preg_replace( '|(?<!%)%f|' , '%F', $query ); // Force floats to be locale unaware
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$query = preg_replace( '|(?<!%)%s|', "'%s'", $query ); // quote the strings, avoiding escaped strings like %%s
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array_walk( $args, array( $this, 'escape_by_ref' ) );
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return @vsprintf( $query, $args );
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}
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public function escape_by_ref( &$string ) {
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if ( ! is_float( $string ) )
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$string = $this->_real_escape( $string );
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}
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function _real_escape( $string ) {
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if ( $this->use_mysqli ) {
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return mysqli_real_escape_string( $this->dbh, $string );
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} else {
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return mysql_real_escape_string( $string, $this->dbh );
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}
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}
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public function get_row( $query = null ) {
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$y = 0;
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if ( $query ) {
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$this->query( $query );
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} else {
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return null;
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}
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if ( !isset( $this->last_result[$y] ) )
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return null;
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return $this->last_result[$y] ? $this->last_result[$y] : null;
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}
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public function query( $query ) {
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if ( ! $this->ready ) {
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return false;
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}
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$this->_do_query( $query );
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// If there is an error then take note of it.
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if ( $this->use_mysqli ) {
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if ( $this->dbh instanceof \mysqli ) {
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$this->last_error = mysqli_error( $this->dbh );
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} else {
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$this->last_error = 'query: Unable to retrieve the error message from MySQL';
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}
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} else {
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if ( is_resource( $this->dbh ) ) {
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$this->last_error = mysql_error( $this->dbh );
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} else {
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$this->last_error = 'query: Unable to retrieve the error message from MySQL';
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}
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}
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if ( $this->last_error ) {
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if ( WP_DEBUG ) {
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echo esc_html( $this->last_error );
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}
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return false;
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}
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$num_rows = 0;
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$this->last_result = array();
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if ( $this->use_mysqli && $this->result instanceof \mysqli_result ) {
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while ( $row = mysqli_fetch_object( $this->result ) ) {
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$this->last_result[$num_rows] = $row;
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$num_rows++;
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}
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} elseif ( is_resource( $this->result ) ) {
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while ( $row = mysql_fetch_object( $this->result ) ) {
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$this->last_result[$num_rows] = $row;
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$num_rows++;
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}
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}
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// Log number of rows the query returned
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// and return number of rows selected
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$this->num_rows = $num_rows;
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$return_val = $num_rows;
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return $return_val;
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}
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private function _do_query( $query ) {
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if ( ! empty( $this->dbh ) && $this->use_mysqli ) {
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$this->result = mysqli_query( $this->dbh, $query );
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} elseif ( ! empty( $this->dbh ) ) {
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$this->result = mysql_query( $query, $this->dbh );
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}
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}
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public function close() {
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if ( ! $this->dbh ) {
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return false;
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}
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if ( $this->use_mysqli ) {
|
||
|
|
$closed = mysqli_close( $this->dbh );
|
||
|
|
} else {
|
||
|
|
$closed = mysql_close( $this->dbh );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $closed ) {
|
||
|
|
$this->dbh = null;
|
||
|
|
$this->ready = false;
|
||
|
|
$this->has_connected = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $closed;
|
||
|
|
}
|
||
|
|
}
|