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| Dir : /home/trave494/live2news.com/wp-content/plugins/w3-total-cache/ConfigDbStorage.php |
<?php
namespace W3TC;
/**
* class Config
* Provides configuration data using cache
*/
class ConfigDbStorage {
/**
* Reads config from database
* Stored in this class to limit class loading
*/
static public function util_array_from_storage( $blog_id, $preview ) {
$content = self::load_content( $blog_id, $preview );
$config = @json_decode( $content, true );
if ( is_array( $config ) )
return $config;
return null;
}
static public function is_item_exists( $blog_id, $preview ) {
$content = self::load_content( $blog_id, $preview );
return is_null( $content );
}
static public function remove_item( $blog_id, $preview ) {
$table = self::get_table( $blog_id );
$option_name = self::get_option_name( $blog_id, $preview );
global $wpdb;
$wpdb->query( $wpdb->prepare(
"DELETE FROM $table WHERE option_name = %s",
$option_name ) );
}
/**
* Deploys the config file from a preview config file
*
* @param integer $direction +1: preview->production
* -1: production->preview
* @param boolean $remove_source remove source file
*/
static public function preview_production_copy( $blog_id, $direction ) {
if ( $direction > 0 ) {
$content = self::load_content( $blog_id, true );
self::save_item( $blog_id, false, $content );
} else {
$content = self::load_content( $blog_id, false );
self::save_item( $blog_id, true, $content );
}
}
static public function save_item( $blog_id, $preview, $data ) {
if ( is_string( $data ) ) {
$config = $data;
} else {
$config = json_encode( $data );
}
$table = self::get_table( $blog_id );
$option_name = self::get_option_name( $blog_id, $preview );
global $wpdb;
$is_exists = !is_null( self::load_content( $blog_id, $preview ) );
if ( $is_exists ) {
$wpdb->query( $wpdb->prepare(
"UPDATE $table SET option_value = %s WHERE option_name = %s",
$config, $option_name ) );
} else {
$wpdb->query( $wpdb->prepare(
"INSERT INTO $table (option_name, option_value) VALUES (%s, %s)",
$option_name, $config ) );
}
}
static private function get_table( $blog_id ) {
if ( defined('W3TC_CONFIG_DATABASE_TABLE' ) ) {
$template = W3TC_CONFIG_DATABASE_TABLE;
} else {
if ( is_multisite() ) {
error_log( 'Please use W3TC_CONFIG_DATABASE_TABLE constant, funcationality without it is not stable in multisite mode' );
}
global $table_prefix;
$template = $table_prefix . 'options';
}
if ( $blog_id <= 0 )
$blog_id_prefix = '';
else
$blog_id_prefix = $blog_id . '_';
return str_replace('{blog_id_prefix}', $blog_id_prefix, $template);
}
static private function get_option_name( $blog_id, $preview ) {
return 'w3tc_config_' . $blog_id . ( $preview ? '_preview' : '' );
}
static private function load_content( $blog_id, $preview ) {
$table = self::get_table( $blog_id );
$option_name = self::get_option_name( $blog_id, $preview );
if ( isset( $GLOBALS['wpdb'] ) ) {
global $wpdb;
$row = $wpdb->get_row( $wpdb->prepare(
"SELECT option_value FROM $table WHERE option_name = %s LIMIT 1",
$option_name ) );
} else {
$db = new _WpdbEssentials( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );
if ( $db->ready ) {
$row = $db->get_row( $db->prepare(
"SELECT option_value FROM $table WHERE option_name = %s LIMIT 1",
$option_name ) );
} else {
error_log('Failed to load w3tc config');
$row = null;
}
// close connection immediately so that real pooled connection may be
// reused by later inialized wpdb object
$db->close();
}
if ( is_object( $row ) ) {
return $row->option_value;
}
return null;
}
}
class _WpdbEssentials {
public $last_error = '';
public $num_rows = 0;
var $rows_affected = 0;
var $last_query;
var $last_result;
public function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) {
if ( function_exists( 'mysqli_connect' ) ) {
if ( defined( 'WP_USE_EXT_MYSQL' ) ) {
$this->use_mysqli = ! WP_USE_EXT_MYSQL;
} elseif ( version_compare( phpversion(), '5.5', '>=' ) || ! function_exists( 'mysql_connect' ) ) {
$this->use_mysqli = true;
} elseif ( false !== strpos( $GLOBALS['wp_version'], '-' ) ) {
$this->use_mysqli = true;
}
}
$this->dbuser = $dbuser;
$this->dbpassword = $dbpassword;
$this->dbname = $dbname;
$this->dbhost = $dbhost;
$this->db_connect();
}
public function db_connect( $allow_bail = true ) {
$this->is_mysql = true;
/*
* Deprecated in 3.9+ when using MySQLi. No equivalent
* $new_link parameter exists for mysqli_* functions.
*/
$new_link = defined( 'MYSQL_NEW_LINK' ) ? MYSQL_NEW_LINK : true;
$client_flags = defined( 'MYSQL_CLIENT_FLAGS' ) ? MYSQL_CLIENT_FLAGS : 0;
if ( $this->use_mysqli ) {
$this->dbh = mysqli_init();
// mysqli_real_connect doesn't support the host param including a port or socket
// like mysql_connect does. This duplicates how mysql_connect detects a port and/or socket file.
$port = null;
$socket = null;
$host = $this->dbhost;
$port_or_socket = strstr( $host, ':' );
if ( ! empty( $port_or_socket ) ) {
$host = substr( $host, 0, strpos( $host, ':' ) );
$port_or_socket = substr( $port_or_socket, 1 );
if ( 0 !== strpos( $port_or_socket, '/' ) ) {
$port = intval( $port_or_socket );
$maybe_socket = strstr( $port_or_socket, ':' );
if ( ! empty( $maybe_socket ) ) {
$socket = substr( $maybe_socket, 1 );
}
} else {
$socket = $port_or_socket;
}
}
if ( WP_DEBUG ) {
mysqli_real_connect( $this->dbh, $host, $this->dbuser, $this->dbpassword, null, $port, $socket, $client_flags );
} else {
@mysqli_real_connect( $this->dbh, $host, $this->dbuser, $this->dbpassword, null, $port, $socket, $client_flags );
}
if ( $this->dbh->connect_errno ) {
$this->dbh = null;
$this->last_error =
'Connection failed with ' . $this->dbh->connect_errno . ' error code';
if ( WP_DEBUG ) {
echo esc_html( $this->last_error );
}
}
} else {
if ( WP_DEBUG ) {
$this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
} else {
$this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
}
}
if ( $this->dbh ) {
$this->has_connected = true;
$this->ready = true;
$this->select( $this->dbname, $this->dbh );
} else {
if ( WP_DEBUG ) {
esc_html_e( 'Failed to connect to mysql server', 'w3-total-cache' );
}
}
}
public function select( $db, $dbh = null ) {
if ( $this->use_mysqli ) {
$success = mysqli_select_db( $dbh, $db );
} else {
$success = mysql_select_db( $db, $dbh );
}
if ( ! $success ) {
$this->ready = false;
if ( WP_DEBUG ) {
esc_html_e( 'Failed to select database', 'w3-total-cache' );
}
}
}
public function prepare( $query, $args ) {
$args = func_get_args();
array_shift( $args );
// If args were passed as an array (as in vsprintf), move them up
if ( isset( $args[0] ) && is_array($args[0]) )
$args = $args[0];
$query = str_replace( "'%s'", '%s', $query ); // in case someone mistakenly already singlequoted it
$query = str_replace( '"%s"', '%s', $query ); // doublequote unquoting
$query = preg_replace( '|(?<!%)%f|' , '%F', $query ); // Force floats to be locale unaware
$query = preg_replace( '|(?<!%)%s|', "'%s'", $query ); // quote the strings, avoiding escaped strings like %%s
array_walk( $args, array( $this, 'escape_by_ref' ) );
return @vsprintf( $query, $args );
}
public function escape_by_ref( &$string ) {
if ( ! is_float( $string ) )
$string = $this->_real_escape( $string );
}
function _real_escape( $string ) {
if ( $this->use_mysqli ) {
return mysqli_real_escape_string( $this->dbh, $string );
} else {
return mysql_real_escape_string( $string, $this->dbh );
}
}
public function get_row( $query = null ) {
$y = 0;
if ( $query ) {
$this->query( $query );
} else {
return null;
}
if ( !isset( $this->last_result[$y] ) )
return null;
return $this->last_result[$y] ? $this->last_result[$y] : null;
}
public function query( $query ) {
if ( ! $this->ready ) {
return false;
}
$this->_do_query( $query );
// If there is an error then take note of it.
if ( $this->use_mysqli ) {
if ( $this->dbh instanceof \mysqli ) {
$this->last_error = mysqli_error( $this->dbh );
} else {
$this->last_error = 'query: Unable to retrieve the error message from MySQL';
}
} else {
if ( is_resource( $this->dbh ) ) {
$this->last_error = mysql_error( $this->dbh );
} else {
$this->last_error = 'query: Unable to retrieve the error message from MySQL';
}
}
if ( $this->last_error ) {
if ( WP_DEBUG ) {
echo esc_html( $this->last_error );
}
return false;
}
$num_rows = 0;
$this->last_result = array();
if ( $this->use_mysqli && $this->result instanceof \mysqli_result ) {
while ( $row = mysqli_fetch_object( $this->result ) ) {
$this->last_result[$num_rows] = $row;
$num_rows++;
}
} elseif ( is_resource( $this->result ) ) {
while ( $row = mysql_fetch_object( $this->result ) ) {
$this->last_result[$num_rows] = $row;
$num_rows++;
}
}
// Log number of rows the query returned
// and return number of rows selected
$this->num_rows = $num_rows;
$return_val = $num_rows;
return $return_val;
}
private function _do_query( $query ) {
if ( ! empty( $this->dbh ) && $this->use_mysqli ) {
$this->result = mysqli_query( $this->dbh, $query );
} elseif ( ! empty( $this->dbh ) ) {
$this->result = mysql_query( $query, $this->dbh );
}
}
public function close() {
if ( ! $this->dbh ) {
return false;
}
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;
}
}