installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/Generic_Environment.php

@@ -0,0 +1,210 @@
+<?php
+namespace W3TC;
+
+
+
+class Generic_Environment {
+
+	/**
+	 * Fixes environment
+	 *
+	 * @param Config  $config
+	 * @param bool    $force_all_checks
+	 * @throws Util_Environment_Exceptions
+	 */
+	function fix_on_wpadmin_request( $config, $force_all_checks ) {
+		$exs = new Util_Environment_Exceptions();
+		// create add-ins
+		$this->create_required_files( $config, $exs );
+
+		// create folders
+		$this->create_required_folders( $exs );
+		$this->add_index_to_folders();
+
+		if ( count( $exs->exceptions() ) <= 0 ) {
+			// save actual version of config is it's built on legacy configs
+			$f = ConfigUtil::is_item_exists( 0, false );
+			$f2 = file_exists( Config::util_config_filename_legacy_v2( 0, false ) );
+
+			$c = Dispatcher::config_master();
+			if ( ( $f || $f2 ) && $c->is_compiled() ) {
+				$c->save();
+				$f = ConfigUtil::is_item_exists( 0, false );
+			}
+
+			if ( $f && $f2 )
+				@unlink( Config::util_config_filename_legacy_v2( 0, false ) );
+		}
+
+		if ( count( $exs->exceptions() ) > 0 )
+			throw $exs;
+	}
+
+	/**
+	 * Fixes environment once event occurs
+	 *
+	 * @throws Util_Environment_Exceptions
+	 */
+	public function fix_on_event( $config, $event, $old_config = null ) {
+	}
+
+	/**
+	 * Fixes environment after plugin deactivation
+	 *
+	 * @throws Util_Environment_Exceptions
+	 * @return array
+	 */
+	public function fix_after_deactivation() {
+		$exs = new Util_Environment_Exceptions();
+
+		$this->delete_required_files( $exs );
+
+		if ( count( $exs->exceptions() ) > 0 )
+			throw $exs;
+	}
+
+	/**
+	 * Returns required rules for module
+	 *
+	 * @var Config $config
+	 * @return array
+	 */
+	function get_required_rules( $config ) {
+		return null;
+	}
+
+	/**
+	 * Checks if addins in wp-content is available and correct version.
+	 *
+	 * @param unknown $config
+	 * @param Util_Environment_Exceptions $exs
+	 */
+	private function create_required_files( $config, $exs ) {
+		$src = W3TC_INSTALL_FILE_ADVANCED_CACHE;
+		$dst = W3TC_ADDIN_FILE_ADVANCED_CACHE;
+
+		if ( $this->advanced_cache_installed() ) {
+			if ( $this->is_advanced_cache_add_in() ) {
+				$script_data = @file_get_contents( $dst );
+				if ( $script_data == @file_get_contents( $src ) )
+					return;
+			} else if ( get_transient( 'w3tc_remove_add_in_pgcache' ) == 'yes' ) {
+					// user already manually asked to remove another plugin's add in,
+					// we should try to apply ours
+					// (in case of missing permissions deletion could fail)
+				} else if ( !$this->advanced_cache_check_old_add_in() ) {
+					$remove_url = Util_Ui::admin_url( 'admin.php?page=w3tc_dashboard&amp;w3tc_default_remove_add_in=pgcache' );
+
+					$exs->push( new Util_WpFile_FilesystemOperationException(
+							sprintf( __( 'The Page Cache add-in file advanced-cache.php is not a W3 Total Cache drop-in.
+                    It should be removed. %s', 'w3-total-cache' ),
+								Util_Ui::button_link( __( 'Yes, remove it for me', 'w3-total-cache' ), wp_nonce_url( $remove_url, 'w3tc' ) ) ) ) );
+					return;
+				}
+		}
+
+		try {
+			Util_WpFile::copy_file( $src, $dst );
+		} catch ( Util_WpFile_FilesystemOperationException $ex ) {
+			$exs->push( $ex );
+		}
+	}
+
+	/**
+	 * Checks if addins in wp-content are available and deletes them.
+	 *
+	 * @param Util_Environment_Exceptions $exs
+	 */
+	private function delete_required_files( $exs ) {
+		try {
+			if ( $this->is_advanced_cache_add_in() )
+				Util_WpFile::delete_file( W3TC_ADDIN_FILE_ADVANCED_CACHE );
+		} catch ( Util_WpFile_FilesystemOperationException $ex ) {
+			$exs->push( $ex );
+		}
+	}
+
+	/**
+	 * Checks if addins in wp-content is available and correct version.
+	 *
+	 * @param Util_Environment_Exceptions $exs
+	 */
+	private function create_required_folders( $exs ) {
+		// folders that we create if not exists
+		$directories = array(
+			W3TC_CACHE_DIR
+		);
+
+		if ( !(defined( 'W3TC_CONFIG_DATABASE' ) && W3TC_CONFIG_DATABASE ) ) {
+			$directories[] = W3TC_CONFIG_DIR;
+		}
+
+		foreach ( $directories as $directory ) {
+			try{
+				Util_WpFile::create_writeable_folder( $directory, WP_CONTENT_DIR );
+			} catch ( Util_WpFile_FilesystemOperationException $ex ) {
+				$exs->push( $ex );
+			}
+		}
+
+		// folders that we delete if exists and not writeable
+		$directories = array(
+			W3TC_CACHE_TMP_DIR,
+			W3TC_CACHE_BLOGMAP_FILENAME,
+			W3TC_CACHE_DIR . '/object',
+			W3TC_CACHE_DIR . '/db'
+		);
+
+		foreach ( $directories as $directory ) {
+			try{
+				if ( file_exists( $directory ) && !is_writeable( $directory ) )
+					Util_WpFile::delete_folder( $directory );
+			} catch ( Util_WpFile_FilesystemRmdirException $ex ) {
+				$exs->push( $ex );
+			}
+		}
+	}
+
+	/**
+	 * Adds index files
+	 */
+	private function add_index_to_folders() {
+		$directories = array(
+			W3TC_CACHE_DIR,
+			W3TC_CONFIG_DIR );
+		$add_files = array();
+		foreach ( $directories as $dir ) {
+			if ( is_dir( $dir ) && !file_exists( $dir . '/index.html' ) )
+				@file_put_contents( $dir . '/index.html', '' );
+		}
+	}
+
+	/**
+	 * Returns true if advanced-cache.php is installed
+	 *
+	 * @return boolean
+	 */
+	public function advanced_cache_installed() {
+		return file_exists( W3TC_ADDIN_FILE_ADVANCED_CACHE );
+	}
+
+	/**
+	 * Returns true if advanced-cache.php is old version.
+	 *
+	 * @return boolean
+	 */
+	public function advanced_cache_check_old_add_in() {
+		return ( ( $script_data = @file_get_contents( W3TC_ADDIN_FILE_ADVANCED_CACHE ) )
+			&& strstr( $script_data, 'w3_instance' ) !== false );
+	}
+
+	/**
+	 * Checks if advanced-cache.php exists
+	 *
+	 * @return boolean
+	 */
+	public function is_advanced_cache_add_in() {
+		return ( ( $script_data = @file_get_contents( W3TC_ADDIN_FILE_ADVANCED_CACHE ) )
+			&& strstr( $script_data, 'PgCache_ContentGrabber' ) !== false );
+	}
+}