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db.php
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<?php
/*
* MongoDB database proxy class
*/
if (class_exists("Mongo")) {
require_once(WP_CONTENT_DIR.'/plugins/wp-mongodb/PHP-SQL-PARSER/php-sql-parser.php');
/**
* WordPress DB Class
*
* Original code from {@link http://php.justinvincent.com Justin Vincent (justin@visunet.ie)}
*
* @package WordPress
* @subpackage Database
* @since 0.71
*/
/**
* @since 0.71
*/
define( 'EZSQL_VERSION', 'WP1.25' );
/**
* @since 0.71
*/
define( 'OBJECT', 'OBJECT', true );
/**
* @since 2.5.0
*/
define( 'OBJECT_K', 'OBJECT_K' );
/**
* @since 0.71
*/
define( 'ARRAY_A', 'ARRAY_A' );
/**
* @since 0.71
*/
define( 'ARRAY_N', 'ARRAY_N' );
/**
* WordPress Database Access Abstraction Object
*
* It is possible to replace this class with your own
* by setting the $wpdb global variable in wp-content/db.php
* file to your class. The wpdb class will still be included,
* so you can extend it or simply use your own.
*
* @link http://codex.wordpress.org/Function_Reference/wpdb_Class
*
* @package WordPress
* @subpackage Database
* @since 0.71
*/
class wpdb_mongo {
// MongoDB instance
var $mongo = array();
var $wpdb = null;
/**
* Whether to show SQL/DB errors
*
* @since 0.71
* @access private
* @var bool
*/
var $show_errors = false;
/**
* Whether to suppress errors during the DB bootstrapping.
*
* @access private
* @since 2.5.0
* @var bool
*/
var $suppress_errors = false;
/**
* The last error during query.
*
* @since 2.5.0
* @var string
*/
var $last_error = '';
/**
* Amount of queries made
*
* @since 1.2.0
* @access private
* @var int
*/
var $num_queries = 0;
/**
* Count of rows returned by previous query
*
* @since 0.71
* @access private
* @var int
*/
var $num_rows = 0;
/**
* Count of affected rows by previous query
*
* @since 0.71
* @access private
* @var int
*/
var $rows_affected = 0;
/**
* The ID generated for an AUTO_INCREMENT column by the previous query (usually INSERT).
*
* @since 0.71
* @access public
* @var int
*/
var $insert_id = 0;
/**
* Last query made
*
* @since 0.71
* @access private
* @var array
*/
var $last_query;
/**
* Results of the last query made
*
* @since 0.71
* @access private
* @var array|null
*/
var $last_result;
/**
* MySQL result, which is either a resource or boolean.
*
* @since 0.71
* @access protected
* @var mixed
*/
protected $result;
/**
* Saved info on the table column
*
* @since 0.71
* @access protected
* @var array
*/
protected $col_info;
/**
* Saved queries that were executed
*
* @since 1.5.0
* @access private
* @var array
*/
var $queries;
/**
* WordPress table prefix
*
* You can set this to have multiple WordPress installations
* in a single database. The second reason is for possible
* security precautions.
*
* @since 2.5.0
* @access private
* @var string
*/
var $prefix = '';
/**
* Whether the database queries are ready to start executing.
*
* @since 2.3.2
* @access private
* @var bool
*/
var $ready = false;
/**
* {@internal Missing Description}}
*
* @since 3.0.0
* @access public
* @var int
*/
var $blogid = 0;
/**
* {@internal Missing Description}}
*
* @since 3.0.0
* @access public
* @var int
*/
var $siteid = 0;
/**
* List of WordPress per-blog tables
*
* @since 2.5.0
* @access private
* @see wpdb::tables()
* @var array
*/
var $tables = array( 'posts', 'comments', 'links', 'options', 'postmeta',
'terms', 'term_taxonomy', 'term_relationships', 'commentmeta' );
/**
* List of deprecated WordPress tables
*
* categories, post2cat, and link2cat were deprecated in 2.3.0, db version 5539
*
* @since 2.9.0
* @access private
* @see wpdb::tables()
* @var array
*/
var $old_tables = array( 'categories', 'post2cat', 'link2cat' );
/**
* List of WordPress global tables
*
* @since 3.0.0
* @access private
* @see wpdb::tables()
* @var array
*/
var $global_tables = array( 'users', 'usermeta' );
/**
* List of Multisite global tables
*
* @since 3.0.0
* @access private
* @see wpdb::tables()
* @var array
*/
var $ms_global_tables = array( 'blogs', 'signups', 'site', 'sitemeta',
'sitecategories', 'registration_log', 'blog_versions' );
/**
* WordPress Comments table
*
* @since 1.5.0
* @access public
* @var string
*/
var $comments;
/**
* WordPress Comment Metadata table
*
* @since 2.9.0
* @access public
* @var string
*/
var $commentmeta;
/**
* WordPress Links table
*
* @since 1.5.0
* @access public
* @var string
*/
var $links;
/**
* WordPress Options table
*
* @since 1.5.0
* @access public
* @var string
*/
var $options;
/**
* WordPress Post Metadata table
*
* @since 1.5.0
* @access public
* @var string
*/
var $postmeta;
/**
* WordPress Posts table
*
* @since 1.5.0
* @access public
* @var string
*/
var $posts;
/**
* WordPress Terms table
*
* @since 2.3.0
* @access public
* @var string
*/
var $terms;
/**
* WordPress Term Relationships table
*
* @since 2.3.0
* @access public
* @var string
*/
var $term_relationships;
/**
* WordPress Term Taxonomy table
*
* @since 2.3.0
* @access public
* @var string
*/
var $term_taxonomy;
/*
* Global and Multisite tables
*/
/**
* WordPress User Metadata table
*
* @since 2.3.0
* @access public
* @var string
*/
var $usermeta;
/**
* WordPress Users table
*
* @since 1.5.0
* @access public
* @var string
*/
var $users;
/**
* Multisite Blogs table
*
* @since 3.0.0
* @access public
* @var string
*/
var $blogs;
/**
* Multisite Blog Versions table
*
* @since 3.0.0
* @access public
* @var string
*/
var $blog_versions;
/**
* Multisite Registration Log table
*
* @since 3.0.0
* @access public
* @var string
*/
var $registration_log;
/**
* Multisite Signups table
*
* @since 3.0.0
* @access public
* @var string
*/
var $signups;
/**
* Multisite Sites table
*
* @since 3.0.0
* @access public
* @var string
*/
var $site;
/**
* Multisite Sitewide Terms table
*
* @since 3.0.0
* @access public
* @var string
*/
var $sitecategories;
/**
* Multisite Site Metadata table
*
* @since 3.0.0
* @access public
* @var string
*/
var $sitemeta;
/**
* Format specifiers for DB columns. Columns not listed here default to %s. Initialized during WP load.
*
* Keys are column names, values are format types: 'ID' => '%d'
*
* @since 2.8.0
* @see wpdb::prepare()
* @see wpdb::insert()
* @see wpdb::update()
* @see wpdb::delete()
* @see wp_set_wpdb_vars()
* @access public
* @var array
*/
var $field_types = array();
/**
* Database table columns charset
*
* @since 2.2.0
* @access public
* @var string
*/
var $charset;
/**
* Database table columns collate
*
* @since 2.2.0
* @access public
* @var string
*/
var $collate;
/**
* Whether to use mysql_real_escape_string
*
* @since 2.8.0
* @access public
* @var bool
*/
var $real_escape = false;
/**
* Database Username
*
* @since 2.9.0
* @access protected
* @var string
*/
protected $dbuser;
/**
* Database Password
*
* @since 3.1.0
* @access protected
* @var string
*/
protected $dbpassword;
/**
* Database Name
*
* @since 3.1.0
* @access protected
* @var string
*/
protected $dbname;
/**
* Database Host
*
* @since 3.1.0
* @access protected
* @var string
*/
protected $dbhost;
/**
* Database Handle
*
* @since 0.71
* @access protected
* @var string
*/
protected $dbh;
/**
* A textual description of the last query/get_row/get_var call
*
* @since 3.0.0
* @access public
* @var string
*/
var $func_call;
/**
* Whether MySQL is used as the database engine.
*
* Set in WPDB::db_connect() to true, by default. This is used when checking
* against the required MySQL version for WordPress. Normally, a replacement
* database drop-in (db.php) will skip these checks, but setting this to true
* will force the checks to occur.
*
* @since 3.3.0
* @access public
* @var bool
*/
public $is_mysql = null;
/**
* Connects to the database server and selects a database
*
* PHP5 style constructor for compatibility with PHP5. Does
* the actual setting up of the class properties and connection
* to the database.
*
* @link http://core.trac.wordpress.org/ticket/3354
* @since 2.0.8
*
* @param string $dbuser MySQL database user
* @param string $dbpassword MySQL database password
* @param string $dbname MySQL database name
* @param string $dbhost MySQL database host
*/
function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) {
register_shutdown_function( array( $this, '__destruct' ) );
if ( WP_DEBUG )
$this->show_errors();
$this->init_charset();
$this->dbuser = $dbuser;
$this->dbpassword = $dbpassword;
$this->dbname = $dbname;
$this->dbhost = $dbhost;
$this->db_connect();
}
/**
* PHP5 style destructor and will run when database object is destroyed.
*
* @see wpdb::__construct()
* @since 2.0.8
* @return bool true
*/
function __destruct() {
return true;
}
/**
* PHP5 style magic getter, used to lazy-load expensive data.
*
* @since 3.5.0
*
* @param string $name The private member to get, and optionally process
* @return mixed The private member
*/
function __get( $name ) {
if ( 'col_info' == $name )
$this->load_col_info();
return $this->$name;
}
/**
* Magic function, for backwards compatibility
*
* @since 3.5.0
*
* @param string $name The private member to set
* @param mixed $value The value to set
*/
function __set( $name, $value ) {
$this->$name = $value;
}
/**
* Magic function, for backwards compatibility
*
* @since 3.5.0
*
* @param string $name The private member to check
*
* @return bool If the member is set or not
*/
function __isset( $name ) {
return isset( $this->$name );
}
/**
* Magic function, for backwards compatibility
*
* @since 3.5.0
*
* @param string $name The private member to unset
*/
function __unset( $name ) {
unset( $this->$name );
}
/**
* Set $this->charset and $this->collate
*
* @since 3.1.0
*/
function init_charset() {
if ( function_exists('is_multisite') && is_multisite() ) {
$this->charset = 'utf8';
if ( defined( 'DB_COLLATE' ) && DB_COLLATE )
$this->collate = DB_COLLATE;
else
$this->collate = 'utf8_general_ci';
} elseif ( defined( 'DB_COLLATE' ) ) {
$this->collate = DB_COLLATE;
}
if ( defined( 'DB_CHARSET' ) )
$this->charset = DB_CHARSET;
}
/**
* Sets the connection's character set.
*
* @since 3.1.0
*
* @param resource $dbh The resource given by mysql_connect
* @param string $charset The character set (optional)
* @param string $collate The collation (optional)
*/
function set_charset($dbh, $charset = null, $collate = null) {
if ( !isset($charset) )
$charset = $this->charset;
if ( !isset($collate) )
$collate = $this->collate;
if ( $this->has_cap( 'collation', $dbh ) && !empty( $charset ) ) {
if ( function_exists( 'mysql_set_charset' ) && $this->has_cap( 'set_charset', $dbh ) ) {
mysql_set_charset( $charset, $dbh );
$this->real_escape = true;
} else {
$query = $this->prepare( 'SET NAMES %s', $charset );
if ( ! empty( $collate ) )
$query .= $this->prepare( ' COLLATE %s', $collate );
mysql_query( $query, $dbh );
}
}
}
/**
* Sets the table prefix for the WordPress tables.
*
* @since 2.5.0
*
* @param string $prefix Alphanumeric name for the new prefix.
* @param bool $set_table_names Optional. Whether the table names, e.g. wpdb::$posts, should be updated or not.
* @return string|WP_Error Old prefix or WP_Error on error
*/
function set_prefix( $prefix, $set_table_names = true ) {
if ( preg_match( '|[^a-z0-9_]|i', $prefix ) )
return new WP_Error('invalid_db_prefix', 'Invalid database prefix' );
$old_prefix = is_multisite() ? '' : $prefix;
if ( isset( $this->base_prefix ) )
$old_prefix = $this->base_prefix;
$this->base_prefix = $prefix;
if ( $set_table_names ) {
foreach ( $this->tables( 'global' ) as $table => $prefixed_table )
$this->$table = $prefixed_table;
if ( is_multisite() && empty( $this->blogid ) )
return $old_prefix;
$this->prefix = $this->get_blog_prefix();
foreach ( $this->tables( 'blog' ) as $table => $prefixed_table )
$this->$table = $prefixed_table;
foreach ( $this->tables( 'old' ) as $table => $prefixed_table )
$this->$table = $prefixed_table;
}
return $old_prefix;
}
/**
* Sets blog id.
*
* @since 3.0.0
* @access public
* @param int $blog_id
* @param int $site_id Optional.
* @return string previous blog id
*/
function set_blog_id( $blog_id, $site_id = 0 ) {
if ( ! empty( $site_id ) )
$this->siteid = $site_id;
$old_blog_id = $this->blogid;
$this->blogid = $blog_id;
$this->prefix = $this->get_blog_prefix();
foreach ( $this->tables( 'blog' ) as $table => $prefixed_table )
$this->$table = $prefixed_table;
foreach ( $this->tables( 'old' ) as $table => $prefixed_table )
$this->$table = $prefixed_table;
return $old_blog_id;
}
/**
* Gets blog prefix.
*
* @uses is_multisite()
* @since 3.0.0
* @param int $blog_id Optional.
* @return string Blog prefix.
*/
function get_blog_prefix( $blog_id = null ) {
if ( is_multisite() ) {
if ( null === $blog_id )
$blog_id = $this->blogid;
$blog_id = (int) $blog_id;
if ( defined( 'MULTISITE' ) && ( 0 == $blog_id || 1 == $blog_id ) )
return $this->base_prefix;
else
return $this->base_prefix . $blog_id . '_';
} else {
return $this->base_prefix;
}
}
/**
* Returns an array of WordPress tables.
*
* Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to
* override the WordPress users and usermeta tables that would otherwise
* be determined by the prefix.
*
* The scope argument can take one of the following:
*
* 'all' - returns 'all' and 'global' tables. No old tables are returned.
* 'blog' - returns the blog-level tables for the queried blog.
* 'global' - returns the global tables for the installation, returning multisite tables only if running multisite.
* 'ms_global' - returns the multisite global tables, regardless if current installation is multisite.
* 'old' - returns tables which are deprecated.
*
* @since 3.0.0
* @uses wpdb::$tables
* @uses wpdb::$old_tables
* @uses wpdb::$global_tables
* @uses wpdb::$ms_global_tables
* @uses is_multisite()
*
* @param string $scope Optional. Can be all, global, ms_global, blog, or old tables. Defaults to all.
* @param bool $prefix Optional. Whether to include table prefixes. Default true. If blog
* prefix is requested, then the custom users and usermeta tables will be mapped.
* @param int $blog_id Optional. The blog_id to prefix. Defaults to wpdb::$blogid. Used only when prefix is requested.
* @return array Table names. When a prefix is requested, the key is the unprefixed table name.
*/
function tables( $scope = 'all', $prefix = true, $blog_id = 0 ) {
switch ( $scope ) {
case 'all' :
$tables = array_merge( $this->global_tables, $this->tables );
if ( is_multisite() )
$tables = array_merge( $tables, $this->ms_global_tables );
break;
case 'blog' :
$tables = $this->tables;
break;
case 'global' :
$tables = $this->global_tables;
if ( is_multisite() )
$tables = array_merge( $tables, $this->ms_global_tables );
break;
case 'ms_global' :
$tables = $this->ms_global_tables;
break;
case 'old' :
$tables = $this->old_tables;
break;
default :
return array();
break;
}
if ( $prefix ) {
if ( ! $blog_id )
$blog_id = $this->blogid;
$blog_prefix = $this->get_blog_prefix( $blog_id );
$base_prefix = $this->base_prefix;
$global_tables = array_merge( $this->global_tables, $this->ms_global_tables );
foreach ( $tables as $k => $table ) {
if ( in_array( $table, $global_tables ) )
$tables[ $table ] = $base_prefix . $table;
else
$tables[ $table ] = $blog_prefix . $table;
unset( $tables[ $k ] );
}
if ( isset( $tables['users'] ) && defined( 'CUSTOM_USER_TABLE' ) )
$tables['users'] = CUSTOM_USER_TABLE;
if ( isset( $tables['usermeta'] ) && defined( 'CUSTOM_USER_META_TABLE' ) )
$tables['usermeta'] = CUSTOM_USER_META_TABLE;
}
return $tables;
}
/**
* Selects a database using the current database connection.
*
* The database name will be changed based on the current database
* connection. On failure, the execution will bail and display an DB error.
*
* @since 0.71
*
* @param string $db MySQL database name
* @param resource $dbh Optional link identifier.
* @return null Always null.
*/
function select( $db, $dbh = null ) {
if ( is_null($dbh) )
$dbh = $this->dbh;
if ( !@mysql_select_db( $db, $dbh ) ) {
$this->ready = false;
wp_load_translations_early();
$this->bail( sprintf( __( '<h1>Can’t select database</h1>
<p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>%1$s</code> database.</p>
<ul>
<li>Are you sure it exists?</li>
<li>Does the user <code>%2$s</code> have permission to use the <code>%1$s</code> database?</li>
<li>On some systems the name of your database is prefixed with your username, so it would be like <code>username_%1$s</code>. Could that be the problem?</li>
</ul>
<p>If you don\'t know how to set up a database you should <strong>contact your host</strong>. If all else fails you may find help at the <a href="http://wordpress.org/support/">WordPress Support Forums</a>.</p>' ), htmlspecialchars( $db, ENT_QUOTES ), htmlspecialchars( $this->dbuser, ENT_QUOTES ) ), 'db_select_fail' );
return;
}
}
/**
* Weak escape, using addslashes()
*
* @see addslashes()
* @since 2.8.0
* @access private
*
* @param string $string
* @return string
*/
function _weak_escape( $string ) {
return addslashes( $string );
}
/**
* Real escape, using mysql_real_escape_string() or addslashes()
*
* @see mysql_real_escape_string()
* @see addslashes()
* @since 2.8.0
* @access private
*
* @param string $string to escape
* @return string escaped
*/
function _real_escape( $string ) {
if ( $this->dbh && $this->real_escape )
return mysql_real_escape_string( $string, $this->dbh );
else
return addslashes( $string );
}
/**
* Escape data. Works on arrays.
*
* @uses wpdb::_escape()
* @uses wpdb::_real_escape()
* @since 2.8.0
* @access private
*
* @param string|array $data
* @return string|array escaped
*/
function _escape( $data ) {
if ( is_array( $data ) ) {
foreach ( (array) $data as $k => $v ) {
if ( is_array($v) )
$data[$k] = $this->_escape( $v );
else
$data[$k] = $this->_real_escape( $v );
}
} else {
$data = $this->_real_escape( $data );
}
return $data;
}
/**
* Escapes content for insertion into the database using addslashes(), for security.
*
* Works on arrays.
*
* @since 0.71
* @param string|array $data to escape
* @return string|array escaped as query safe string
*/
function escape( $data ) {
if ( is_array( $data ) ) {
foreach ( (array) $data as $k => $v ) {
if ( is_array( $v ) )
$data[$k] = $this->escape( $v );
else
$data[$k] = $this->_weak_escape( $v );
}
} else {
$data = $this->_weak_escape( $data );
}
return $data;
}
/**
* Escapes content by reference for insertion into the database, for security
*
* @uses wpdb::_real_escape()
* @since 2.3.0
* @param string $string to escape
* @return void
*/
function escape_by_ref( &$string ) {
if ( ! is_float( $string ) )
$string = $this->_real_escape( $string );
}
/**
* Prepares a SQL query for safe execution. Uses sprintf()-like syntax.
*
* The following directives can be used in the query format string:
* %d (integer)
* %f (float)
* %s (string)
* %% (literal percentage sign - no argument needed)
*
* All of %d, %f, and %s are to be left unquoted in the query string and they need an argument passed for them.
* Literals (%) as parts of the query must be properly written as %%.
*
* This function only supports a small subset of the sprintf syntax; it only supports %d (integer), %f (float), and %s (string).
* Does not support sign, padding, alignment, width or precision specifiers.
* Does not support argument numbering/swapping.
*
* May be called like {@link http://php.net/sprintf sprintf()} or like {@link http://php.net/vsprintf vsprintf()}.
*
* Both %d and %s should be left unquoted in the query string.
*
* <code>
* wpdb::prepare( "SELECT * FROM `table` WHERE `column` = %s AND `field` = %d", 'foo', 1337 )
* wpdb::prepare( "SELECT DATE_FORMAT(`field`, '%%c') FROM `table` WHERE `column` = %s", 'foo' );
* </code>
*
* @link http://php.net/sprintf Description of syntax.
* @since 2.3.0
*
* @param string $query Query statement with sprintf()-like placeholders
* @param array|mixed $args The array of variables to substitute into the query's placeholders if being called like
* {@link http://php.net/vsprintf vsprintf()}, or the first variable to substitute into the query's placeholders if
* being called like {@link http://php.net/sprintf sprintf()}.
* @param mixed $args,... further variables to substitute into the query's placeholders if being called like
* {@link http://php.net/sprintf sprintf()}.