513 lines
13 KiB
PHP
513 lines
13 KiB
PHP
<?php
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namespace W3TC;
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/**
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* class Db
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* Database access mediator, for WordPress < 5.3
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*/
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class DbCache_WpdbLegacy extends DbCache_WpdbBase {
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private $active_processor_number;
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private $active_processor;
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private $processors;
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private $debug;
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private $request_time_start = 0;
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/*
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* @param boolean $call_default_constructor
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*/
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public function __construct( $processors = null ) {
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// required to initialize $use_mysqli which is private
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parent::__construct( '', '', '', '' );
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// cant force empty parameter list due to wp requirements
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if ( !is_array( $processors ) )
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throw new Exception( 'called incorrectly, use instance()' );
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$this->processors = $processors;
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$this->active_processor = $processors[0];
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$this->active_processor_number = 0;
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$c = Dispatcher::config();
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$this->debug = $c->get_boolean( 'dbcache.debug' );
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if ( $this->debug )
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$this->_request_time_start = microtime( true );
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}
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/**
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* Called by Root_Loader when all w3tc plugins loaded,
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* i.e. later that object instantiated
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*/
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public function on_w3tc_plugins_loaded() {
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$o = $this;
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if ( $this->debug ) {
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add_action( 'shutdown', array( $o, 'debug_shutdown' ) );
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}
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add_filter( 'w3tc_footer_comment', array(
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$o, 'w3tc_footer_comment' ) );
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add_action( 'w3tc_usage_statistics_of_request', array(
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$o, 'w3tc_usage_statistics_of_request' ), 10, 1 );
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}
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public function w3tc_footer_comment( $strings ) {
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foreach ( $this->processors as $processor )
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$strings = $processor->w3tc_footer_comment( $strings );
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return $strings;
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}
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public function debug_shutdown() {
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$strings = array();
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foreach ( $this->processors as $processor )
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$strings = $processor->w3tc_footer_comment( $strings );
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$request_time_total = microtime( true ) - $this->request_time_start;
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$data = sprintf(
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"\n[%s] [%s] [%s]\n",
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gmdate( 'r' ),
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isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '',
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round( $request_time_total, 4 )
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) . implode( "\n", $strings ) . "\n";
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$data = strtr( $data, '<>', '..' );
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$filename = Util_Debug::log_filename( 'dbcache' );
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@file_put_contents( $filename, $data, FILE_APPEND );
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}
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public function w3tc_usage_statistics_of_request( $storage ) {
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foreach ( $this->processors as $processor )
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$processor->w3tc_usage_statistics_of_request( $storage );
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}
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public function flush_cache( $extras = array() ) {
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$v = true;
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foreach ( $this->processors as $processor )
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$v &= $processor->flush_cache( $extras );
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return $v;
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}
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public function db_connect( $allow_bail = true ) {
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if ( empty( $this->dbuser ) ) {
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// skip connection - called from constructor
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} else
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return parent::db_connect( $allow_bail );
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}
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/**
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* Initializes object after processors configured. Called from instance() only
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*/
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public function initialize() {
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return $this->active_processor->initialize();
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function insert( $table, $data, $format = null ) {
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do_action( 'w3tc_db_insert', $table, $data, $format );
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return $this->active_processor->insert( $table, $data, $format );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function query( $query ) {
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return $this->active_processor->query( $query );
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}
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public function _escape( $data ) {
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return $this->active_processor->_escape( $data );
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}
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/**
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* Overriten logic of wp_db by processor.
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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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}
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return $this->active_processor->prepare( $query, $args );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function replace( $table, $data, $format = null ) {
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do_action( 'w3tc_db_replace', $table, $data, $format );
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return $this->active_processor->replace( $table, $data, $format );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function update( $table, $data, $where, $format = null, $where_format = null ) {
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do_action( 'w3tc_db_update', $table, $data, $where, $format,
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$where_format );
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return $this->active_processor->update( $table, $data, $where, $format, $where_format );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function delete( $table, $where, $where_format = null ) {
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do_action( 'w3tc_db_delete', $table, $where, $where_format );
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return $this->active_processor->delete( $table, $where, $where_format );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function init_charset() {
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return $this->active_processor->init_charset();
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function set_charset( $dbh, $charset = null, $collate = null ) {
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return $this->active_processor->set_charset( $dbh, $charset, $collate );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function set_sql_mode( $modes = array() ) {
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return $this->active_processor->set_sql_mode( $modes );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function flush() {
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return $this->active_processor->flush();
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function check_database_version( $dbh_or_table = false ) {
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return $this->active_processor->check_database_version( $dbh_or_table );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function supports_collation( $dbh_or_table = false ) {
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return $this->active_processor->supports_collation( $dbh_or_table );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function has_cap( $db_cap, $dbh_or_table = false ) {
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return $this->active_processor->has_cap( $db_cap, $dbh_or_table );
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}
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/**
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* Overriten logic of wp_db by processor.
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*/
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public function db_version( $dbh_or_table = false ) {
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return $this->active_processor->db_version( $dbh_or_table );
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}
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/**
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* Default initialization method, calls wp_db apropriate method
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*/
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public function default_initialize() {
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parent::__construct( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_insert( $table, $data, $format = null ) {
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return parent::insert( $table, $data, $format );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_query( $query ) {
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return parent::query( $query );
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}
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public function default__escape( $data ) {
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return parent::_escape( $data );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_prepare( $query, $args ) {
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return parent::prepare( $query, $args );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_replace( $table, $data, $format = null ) {
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return parent::replace( $table, $data, $format );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_update( $table, $data, $where, $format = null, $where_format = null ) {
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return parent::update( $table, $data, $where, $format, $where_format );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_delete( $table, $where, $where_format = null ) {
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return parent::delete( $table, $where, $where_format );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_init_charset() {
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return parent::init_charset();
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_set_charset( $dbh, $charset = null, $collate = null ) {
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return parent::set_charset( $dbh, $charset, $collate );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_set_sql_mode( $modes = array() ) {
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return parent::set_sql_mode( $modes );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_flush() {
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return parent::flush();
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_check_database_version( $dbh_or_table = false ) {
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return parent::check_database_version( $dbh_or_table );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_supports_collation( $dbh_or_table = false ) {
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return parent::supports_collation( $dbh_or_table );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_has_cap( $db_cap, $dbh_or_table = false ) {
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return parent::has_cap( $db_cap, $dbh_or_table );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function default_db_version( $dbh_or_table = false ) {
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return parent::db_version( $dbh_or_table );
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}
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/**
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* Default implementation, calls wp_db apropriate method
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*/
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public function switch_active_processor( $offset ) {
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$new_processor_number = $this->active_processor_number + $offset;
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if ( $new_processor_number <= 0 ) {
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$new_processor_number = 0;
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} else if ( $new_processor_number >= count( $this->processors ) ) {
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$new_processor_number = count( $this->processors ) - 1;
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}
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$offset_made = $new_processor_number - $this->active_processor_number;
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$this->active_processor_number = $new_processor_number;
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$this->active_processor = $this->processors[$new_processor_number];
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return $offset_made;
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}
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}
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/**
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* class CallUnderlying
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*/
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class _CallUnderlying {
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function __construct( $manager ) {
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$this->wpdb_mixin = $manager;
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function initialize() {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->initialize();
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function flush() {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->flush();
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function query( $query ) {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->query( $query );
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function _escape( $data ) {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->_escape( $data );
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function prepare( $query, $args ) {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->prepare( $query, $args );
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function insert( $table, $data, $format = null ) {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->insert( $table, $data, $format );
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function replace( $table, $data, $format = null ) {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->replace( $table, $data, $format );
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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/**
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* Calls underlying processor's aproptiate method of wp_db
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*/
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function update( $table, $data, $where, $format = null, $where_format = null ) {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->update( $table, $data, $where, $format, $where_format );
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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function delete( $table, $where, $where_format = null ) {
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$switched = $this->wpdb_mixin->switch_active_processor( 1 );
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try {
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$r = $this->wpdb_mixin->delete( $table, $where, $where_format );
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$this->wpdb_mixin->switch_active_processor( -$switched );
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return $r;
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} catch ( \Exception $e ) {
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$this->wpdb_mixin->switch_active_processor( -$switched );
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throw $e;
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}
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}
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}
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