AlkantarClanX12
Your IP : 18.119.162.226
<?php
/**
* File: DbCache_Environment.php
*
* @package W3TC
*/
namespace W3TC;
/**
* Class: DbCache_Environment
*/
class DbCache_Environment {
/**
* Fixes environment in each wp-admin request
*
* @param Config $config Config.
* @param bool $force_all_checks Force checks flag.
*
* @throws Util_Environment_Exceptions Exceptions.
*/
public function fix_on_wpadmin_request( $config, $force_all_checks ) {
$exs = new Util_Environment_Exceptions();
$dbcache_enabled = $config->get_boolean( 'dbcache.enabled' );
try {
if ( $dbcache_enabled || Util_Environment::is_dbcluster( $config ) ) {
$this->create_addin();
} else {
$this->delete_addin();
}
} catch ( Util_WpFile_FilesystemOperationException $ex ) {
$exs->push( $ex );
}
if ( count( $exs->exceptions() ) > 0 ) {
throw $exs;
}
}
/**
* Fixes environment once event occurs.
*
* @param Config $config Config.
* @param string $event Event.
* @param null|Config $old_config Old Config.
*
* @throws Util_Environment_Exceptions Exception.
*/
public function fix_on_event( $config, $event, $old_config = null ) {
$dbcache_enabled = $config->get_boolean( 'dbcache.enabled' );
$engine = $config->get_string( 'dbcache.engine' );
if ( $dbcache_enabled && ( 'file' === $engine || 'file_generic' === $engine ) ) {
$new_interval = $config->get_integer( 'dbcache.file.gc' );
$old_interval = $old_config ? $old_config->get_integer( 'dbcache.file.gc' ) : -1;
if ( null !== $old_config && $new_interval !== $old_interval ) {
$this->unschedule_gc();
}
if ( ! wp_next_scheduled( 'w3_dbcache_cleanup' ) ) {
wp_schedule_event( time(), 'w3_dbcache_cleanup', 'w3_dbcache_cleanup' );
}
} else {
$this->unschedule_gc();
}
}
/**
* Fixes environment after plugin deactivation
*
* @throws Util_Environment_Exceptions Exception.
* @throws Util_WpFile_FilesystemOperationException Exception.
*
* @return void
*/
public function fix_after_deactivation() {
$exs = new Util_Environment_Exceptions();
try {
$this->delete_addin();
} catch ( Util_WpFile_FilesystemOperationException $ex ) {
$exs->push( $ex );
}
$this->unschedule_gc();
$this->unschedule_purge_wpcron();
if ( count( $exs->exceptions() ) > 0 ) {
throw $exs;
}
}
/**
* Returns required rules for module
*
* @var Config $config
* @return array
*/
function get_required_rules( $config ) {
return null;
}
/**
* Remove Garbage collection cron job.
*
* @return void
*/
private function unschedule_gc() {
if ( wp_next_scheduled( 'w3_dbcache_cleanup' ) ) {
wp_clear_scheduled_hook( 'w3_dbcache_cleanup' );
}
}
/**
* Remove cron job for pagecache purge.
*
* @since 2.8.0
*
* @return void
*/
private function unschedule_purge_wpcron() {
if ( wp_next_scheduled( 'w3tc_dbcache_purge_wpcron' ) ) {
wp_clear_scheduled_hook( 'w3tc_dbcache_purge_wpcron' );
}
}
/**
* Creates add-in
*
* @throws Util_WpFile_FilesystemOperationException
*/
private function create_addin() {
$src = W3TC_INSTALL_FILE_DB;
$dst = W3TC_ADDIN_FILE_DB;
if ( $this->db_installed() ) {
if ( $this->is_dbcache_add_in() ) {
$script_data = @file_get_contents( $dst );
if ( $script_data == @file_get_contents( $src ) )
return;
} else if ( get_transient( 'w3tc_remove_add_in_dbcache' ) == 'yes' ) {
// user already manually asked to remove another plugin's add in,
// we should try to apply ours
// (in case of missing permissions deletion could fail)
} else if ( !$this->db_check_old_add_in() ) {
$page_val = Util_Request::get_string( 'page' );
if ( isset( $page_val ) ) {
$url = 'admin.php?page=' . $page_val . '&';
} else {
$url = basename( Util_Environment::remove_query_all( isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '' ) ) . '?page=w3tc_dashboard&';
}
$remove_url = Util_Ui::admin_url( $url . 'w3tc_default_remove_add_in=dbcache' );
throw new Util_WpFile_FilesystemOperationException(
sprintf( __( 'The Database add-in file db.php is not a W3 Total Cache drop-in.
Remove it or disable Database Caching. %s', 'w3-total-cache' ),
Util_Ui::button_link( __( 'Remove it for me', 'w3-total-cache' ), wp_nonce_url( $remove_url, 'w3tc' ) ) ) );
}
}
Util_WpFile::copy_file( $src, $dst );
}
/**
* Deletes add-in
*
* @throws Util_WpFile_FilesystemOperationException
*/
private function delete_addin() {
if ( $this->is_dbcache_add_in() )
Util_WpFile::delete_file( W3TC_ADDIN_FILE_DB );
}
/**
* Returns true if db.php is installed
*
* @return boolean
*/
public function db_installed() {
return file_exists( W3TC_ADDIN_FILE_DB );
}
/**
* Returns true if db.php is old version.
*
* @return boolean
*/
public function db_check_old_add_in() {
if ( !$this->db_installed() )
return false;
return ( ( $script_data = @file_get_contents( W3TC_ADDIN_FILE_DB ) )
&& strstr( $script_data, 'w3_instance' ) !== false );
}
/**
* Checks if db.php is W3TC drop in
*
* @return boolean
*/
public function is_dbcache_add_in() {
if ( !$this->db_installed() )
return false;
return ( ( $script_data = @file_get_contents( W3TC_ADDIN_FILE_DB ) )
&& strstr( $script_data, 'DbCache_Wpdb' ) !== false );
}
}