211 lines
5.5 KiB
PHP
211 lines
5.5 KiB
PHP
<?php
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namespace W3TC;
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class Generic_Environment {
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/**
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* Fixes environment
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*
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* @param Config $config
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* @param bool $force_all_checks
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* @throws Util_Environment_Exceptions
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*/
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function fix_on_wpadmin_request( $config, $force_all_checks ) {
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$exs = new Util_Environment_Exceptions();
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// create add-ins
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$this->create_required_files( $config, $exs );
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// create folders
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$this->create_required_folders( $exs );
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$this->add_index_to_folders();
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if ( count( $exs->exceptions() ) <= 0 ) {
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// save actual version of config is it's built on legacy configs
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$f = ConfigUtil::is_item_exists( 0, false );
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$f2 = file_exists( Config::util_config_filename_legacy_v2( 0, false ) );
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$c = Dispatcher::config_master();
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if ( ( $f || $f2 ) && $c->is_compiled() ) {
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$c->save();
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$f = ConfigUtil::is_item_exists( 0, false );
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}
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if ( $f && $f2 )
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@unlink( Config::util_config_filename_legacy_v2( 0, false ) );
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}
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if ( count( $exs->exceptions() ) > 0 )
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throw $exs;
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}
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/**
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* Fixes environment once event occurs
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*
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* @throws Util_Environment_Exceptions
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*/
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public function fix_on_event( $config, $event, $old_config = null ) {
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}
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/**
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* Fixes environment after plugin deactivation
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*
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* @throws Util_Environment_Exceptions
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* @return array
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*/
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public function fix_after_deactivation() {
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$exs = new Util_Environment_Exceptions();
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$this->delete_required_files( $exs );
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if ( count( $exs->exceptions() ) > 0 )
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throw $exs;
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}
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/**
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* Returns required rules for module
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*
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* @var Config $config
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* @return array
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*/
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function get_required_rules( $config ) {
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return null;
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}
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/**
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* Checks if addins in wp-content is available and correct version.
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*
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* @param unknown $config
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* @param Util_Environment_Exceptions $exs
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*/
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private function create_required_files( $config, $exs ) {
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$src = W3TC_INSTALL_FILE_ADVANCED_CACHE;
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$dst = W3TC_ADDIN_FILE_ADVANCED_CACHE;
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if ( $this->advanced_cache_installed() ) {
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if ( $this->is_advanced_cache_add_in() ) {
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$script_data = @file_get_contents( $dst );
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if ( $script_data == @file_get_contents( $src ) )
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return;
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} else if ( get_transient( 'w3tc_remove_add_in_pgcache' ) == 'yes' ) {
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// user already manually asked to remove another plugin's add in,
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// we should try to apply ours
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// (in case of missing permissions deletion could fail)
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} else if ( !$this->advanced_cache_check_old_add_in() ) {
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$remove_url = Util_Ui::admin_url( 'admin.php?page=w3tc_dashboard&w3tc_default_remove_add_in=pgcache' );
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$exs->push( new Util_WpFile_FilesystemOperationException(
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sprintf( __( 'The Page Cache add-in file advanced-cache.php is not a W3 Total Cache drop-in.
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It should be removed. %s', 'w3-total-cache' ),
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Util_Ui::button_link( __( 'Yes, remove it for me', 'w3-total-cache' ), wp_nonce_url( $remove_url, 'w3tc' ) ) ) ) );
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return;
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}
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}
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try {
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Util_WpFile::copy_file( $src, $dst );
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} catch ( Util_WpFile_FilesystemOperationException $ex ) {
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$exs->push( $ex );
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}
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}
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/**
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* Checks if addins in wp-content are available and deletes them.
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*
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* @param Util_Environment_Exceptions $exs
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*/
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private function delete_required_files( $exs ) {
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try {
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if ( $this->is_advanced_cache_add_in() )
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Util_WpFile::delete_file( W3TC_ADDIN_FILE_ADVANCED_CACHE );
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} catch ( Util_WpFile_FilesystemOperationException $ex ) {
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$exs->push( $ex );
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}
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}
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/**
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* Checks if addins in wp-content is available and correct version.
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*
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* @param Util_Environment_Exceptions $exs
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*/
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private function create_required_folders( $exs ) {
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// folders that we create if not exists
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$directories = array(
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W3TC_CACHE_DIR
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);
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if ( !(defined( 'W3TC_CONFIG_DATABASE' ) && W3TC_CONFIG_DATABASE ) ) {
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$directories[] = W3TC_CONFIG_DIR;
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}
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foreach ( $directories as $directory ) {
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try{
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Util_WpFile::create_writeable_folder( $directory, WP_CONTENT_DIR );
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} catch ( Util_WpFile_FilesystemOperationException $ex ) {
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$exs->push( $ex );
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}
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}
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// folders that we delete if exists and not writeable
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$directories = array(
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W3TC_CACHE_TMP_DIR,
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W3TC_CACHE_BLOGMAP_FILENAME,
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W3TC_CACHE_DIR . '/object',
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W3TC_CACHE_DIR . '/db'
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);
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foreach ( $directories as $directory ) {
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try{
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if ( file_exists( $directory ) && !is_writeable( $directory ) )
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Util_WpFile::delete_folder( $directory );
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} catch ( Util_WpFile_FilesystemRmdirException $ex ) {
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$exs->push( $ex );
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}
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}
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}
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/**
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* Adds index files
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*/
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private function add_index_to_folders() {
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$directories = array(
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W3TC_CACHE_DIR,
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W3TC_CONFIG_DIR );
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$add_files = array();
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foreach ( $directories as $dir ) {
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if ( is_dir( $dir ) && !file_exists( $dir . '/index.html' ) )
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@file_put_contents( $dir . '/index.html', '' );
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}
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}
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/**
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* Returns true if advanced-cache.php is installed
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*
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* @return boolean
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*/
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public function advanced_cache_installed() {
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return file_exists( W3TC_ADDIN_FILE_ADVANCED_CACHE );
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}
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/**
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* Returns true if advanced-cache.php is old version.
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*
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* @return boolean
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*/
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public function advanced_cache_check_old_add_in() {
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return ( ( $script_data = @file_get_contents( W3TC_ADDIN_FILE_ADVANCED_CACHE ) )
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&& strstr( $script_data, 'w3_instance' ) !== false );
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}
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/**
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* Checks if advanced-cache.php exists
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*
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* @return boolean
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*/
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public function is_advanced_cache_add_in() {
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return ( ( $script_data = @file_get_contents( W3TC_ADDIN_FILE_ADVANCED_CACHE ) )
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&& strstr( $script_data, 'PgCache_ContentGrabber' ) !== false );
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}
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}
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