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1a28ec87e1
Prior to about 2013, many class methods lacked even access modifiers which made the `@access` notations that much more useful. Now that we've gotten to a point where the codebase is more mature from a maintenance perspective and we can finally remove these notations. Notable exceptions to this change include standalone functions notated as private as well as some classes still considered to represent "private" APIs. See #41452. Built from https://develop.svn.wordpress.org/trunk@41161 git-svn-id: http://core.svn.wordpress.org/trunk@41001 1a063a9b-81f0-0310-95a4-ce76da25c4cd
458 lines
14 KiB
PHP
458 lines
14 KiB
PHP
<?php
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/**
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* Upgrade API: Plugin_Upgrader class
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*
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* @package WordPress
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* @subpackage Upgrader
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* @since 4.6.0
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*/
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/**
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* Core class used for upgrading/installing plugins.
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*
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* It is designed to upgrade/install plugins from a local zip, remote zip URL,
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* or uploaded zip file.
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*
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* @since 2.8.0
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* @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
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*
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* @see WP_Upgrader
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*/
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class Plugin_Upgrader extends WP_Upgrader {
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/**
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* Plugin upgrade result.
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*
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* @since 2.8.0
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* @var array|WP_Error $result
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*
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* @see WP_Upgrader::$result
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*/
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public $result;
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/**
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* Whether a bulk upgrade/install is being performed.
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*
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* @since 2.9.0
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* @var bool $bulk
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*/
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public $bulk = false;
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/**
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* Initialize the upgrade strings.
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*
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* @since 2.8.0
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*/
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public function upgrade_strings() {
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$this->strings['up_to_date'] = __('The plugin is at the latest version.');
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$this->strings['no_package'] = __('Update package not available.');
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$this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>…');
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$this->strings['unpack_package'] = __('Unpacking the update…');
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$this->strings['remove_old'] = __('Removing the old version of the plugin…');
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$this->strings['remove_old_failed'] = __('Could not remove the old plugin.');
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$this->strings['process_failed'] = __('Plugin update failed.');
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$this->strings['process_success'] = __('Plugin updated successfully.');
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$this->strings['process_bulk_success'] = __('Plugins updated successfully.');
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}
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/**
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* Initialize the install strings.
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*
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* @since 2.8.0
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*/
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public function install_strings() {
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$this->strings['no_package'] = __('Install package not available.');
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$this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>…');
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$this->strings['unpack_package'] = __('Unpacking the package…');
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$this->strings['installing_package'] = __('Installing the plugin…');
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$this->strings['no_files'] = __('The plugin contains no files.');
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$this->strings['process_failed'] = __('Plugin install failed.');
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$this->strings['process_success'] = __('Plugin installed successfully.');
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}
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/**
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* Install a plugin package.
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*
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* @since 2.8.0
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* @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional.
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*
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* @param string $package The full local path or URI of the package.
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* @param array $args {
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* Optional. Other arguments for installing a plugin package. Default empty array.
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*
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* @type bool $clear_update_cache Whether to clear the plugin updates cache if successful.
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* Default true.
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* }
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* @return bool|WP_Error True if the install was successful, false or a WP_Error otherwise.
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*/
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public function install( $package, $args = array() ) {
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$defaults = array(
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'clear_update_cache' => true,
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$this->init();
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$this->install_strings();
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add_filter('upgrader_source_selection', array($this, 'check_package') );
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if ( $parsed_args['clear_update_cache'] ) {
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// Clear cache so wp_update_plugins() knows about the new plugin.
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add_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9, 0 );
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}
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$this->run( array(
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'package' => $package,
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'destination' => WP_PLUGIN_DIR,
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'clear_destination' => false, // Do not overwrite files.
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'clear_working' => true,
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'hook_extra' => array(
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'type' => 'plugin',
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'action' => 'install',
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)
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) );
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remove_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9 );
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remove_filter('upgrader_source_selection', array($this, 'check_package') );
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if ( ! $this->result || is_wp_error($this->result) )
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return $this->result;
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// Force refresh of plugin update information
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wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
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return true;
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}
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/**
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* Upgrade a plugin.
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*
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* @since 2.8.0
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* @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional.
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*
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* @param string $plugin The basename path to the main plugin file.
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* @param array $args {
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* Optional. Other arguments for upgrading a plugin package. Default empty array.
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*
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* @type bool $clear_update_cache Whether to clear the plugin updates cache if successful.
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* Default true.
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* }
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* @return bool|WP_Error True if the upgrade was successful, false or a WP_Error object otherwise.
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*/
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public function upgrade( $plugin, $args = array() ) {
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$defaults = array(
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'clear_update_cache' => true,
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$this->init();
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$this->upgrade_strings();
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$current = get_site_transient( 'update_plugins' );
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if ( !isset( $current->response[ $plugin ] ) ) {
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$this->skin->before();
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$this->skin->set_result(false);
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$this->skin->error('up_to_date');
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$this->skin->after();
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return false;
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}
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// Get the URL to the zip file
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$r = $current->response[ $plugin ];
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add_filter('upgrader_pre_install', array($this, 'deactivate_plugin_before_upgrade'), 10, 2);
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add_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'), 10, 4);
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//'source_selection' => array($this, 'source_selection'), //there's a trac ticket to move up the directory for zip's which are made a bit differently, useful for non-.org plugins.
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if ( $parsed_args['clear_update_cache'] ) {
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// Clear cache so wp_update_plugins() knows about the new plugin.
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add_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9, 0 );
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}
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$this->run( array(
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'package' => $r->package,
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'destination' => WP_PLUGIN_DIR,
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'clear_destination' => true,
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'clear_working' => true,
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'hook_extra' => array(
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'plugin' => $plugin,
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'type' => 'plugin',
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'action' => 'update',
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),
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) );
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// Cleanup our hooks, in case something else does a upgrade on this connection.
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remove_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9 );
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remove_filter('upgrader_pre_install', array($this, 'deactivate_plugin_before_upgrade'));
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remove_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'));
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if ( ! $this->result || is_wp_error($this->result) )
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return $this->result;
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// Force refresh of plugin update information
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wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
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return true;
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}
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/**
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* Bulk upgrade several plugins at once.
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*
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* @since 2.8.0
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* @since 3.7.0 The `$args` parameter was added, making clearing the plugin update cache optional.
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*
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* @param array $plugins Array of the basename paths of the plugins' main files.
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* @param array $args {
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* Optional. Other arguments for upgrading several plugins at once. Default empty array.
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*
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* @type bool $clear_update_cache Whether to clear the plugin updates cache if successful.
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* Default true.
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* }
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* @return array|false An array of results indexed by plugin file, or false if unable to connect to the filesystem.
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*/
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public function bulk_upgrade( $plugins, $args = array() ) {
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$defaults = array(
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'clear_update_cache' => true,
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);
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$parsed_args = wp_parse_args( $args, $defaults );
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$this->init();
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$this->bulk = true;
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$this->upgrade_strings();
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$current = get_site_transient( 'update_plugins' );
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add_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'), 10, 4);
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$this->skin->header();
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// Connect to the Filesystem first.
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$res = $this->fs_connect( array(WP_CONTENT_DIR, WP_PLUGIN_DIR) );
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if ( ! $res ) {
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$this->skin->footer();
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return false;
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}
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$this->skin->bulk_header();
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/*
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* Only start maintenance mode if:
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* - running Multisite and there are one or more plugins specified, OR
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* - a plugin with an update available is currently active.
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* @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
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*/
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$maintenance = ( is_multisite() && ! empty( $plugins ) );
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foreach ( $plugins as $plugin )
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$maintenance = $maintenance || ( is_plugin_active( $plugin ) && isset( $current->response[ $plugin] ) );
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if ( $maintenance )
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$this->maintenance_mode(true);
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$results = array();
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$this->update_count = count($plugins);
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$this->update_current = 0;
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foreach ( $plugins as $plugin ) {
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$this->update_current++;
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$this->skin->plugin_info = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin, false, true);
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if ( !isset( $current->response[ $plugin ] ) ) {
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$this->skin->set_result('up_to_date');
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$this->skin->before();
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$this->skin->feedback('up_to_date');
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$this->skin->after();
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$results[$plugin] = true;
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continue;
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}
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// Get the URL to the zip file.
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$r = $current->response[ $plugin ];
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$this->skin->plugin_active = is_plugin_active($plugin);
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$result = $this->run( array(
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'package' => $r->package,
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'destination' => WP_PLUGIN_DIR,
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'clear_destination' => true,
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'clear_working' => true,
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'is_multi' => true,
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'hook_extra' => array(
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'plugin' => $plugin
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)
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) );
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$results[$plugin] = $this->result;
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// Prevent credentials auth screen from displaying multiple times
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if ( false === $result )
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break;
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} //end foreach $plugins
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$this->maintenance_mode(false);
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// Force refresh of plugin update information.
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wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
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/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
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do_action( 'upgrader_process_complete', $this, array(
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'action' => 'update',
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'type' => 'plugin',
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'bulk' => true,
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'plugins' => $plugins,
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) );
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$this->skin->bulk_footer();
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$this->skin->footer();
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// Cleanup our hooks, in case something else does a upgrade on this connection.
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remove_filter('upgrader_clear_destination', array($this, 'delete_old_plugin'));
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return $results;
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}
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/**
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* Check a source package to be sure it contains a plugin.
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*
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* This function is added to the {@see 'upgrader_source_selection'} filter by
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* Plugin_Upgrader::install().
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*
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* @since 3.3.0
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*
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* @global WP_Filesystem_Base $wp_filesystem Subclass
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*
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* @param string $source The path to the downloaded package source.
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* @return string|WP_Error The source as passed, or a WP_Error object
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* if no plugins were found.
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*/
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public function check_package($source) {
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global $wp_filesystem;
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if ( is_wp_error($source) )
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return $source;
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$working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit(WP_CONTENT_DIR), $source);
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if ( ! is_dir($working_directory) ) // Sanity check, if the above fails, let's not prevent installation.
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return $source;
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// Check the folder contains at least 1 valid plugin.
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$plugins_found = false;
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$files = glob( $working_directory . '*.php' );
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if ( $files ) {
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foreach ( $files as $file ) {
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$info = get_plugin_data( $file, false, false );
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if ( ! empty( $info['Name'] ) ) {
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$plugins_found = true;
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break;
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}
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}
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}
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if ( ! $plugins_found )
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return new WP_Error( 'incompatible_archive_no_plugins', $this->strings['incompatible_archive'], __( 'No valid plugins were found.' ) );
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return $source;
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}
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/**
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* Retrieve the path to the file that contains the plugin info.
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*
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* This isn't used internally in the class, but is called by the skins.
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*
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* @since 2.8.0
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*
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* @return string|false The full path to the main plugin file, or false.
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*/
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public function plugin_info() {
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if ( ! is_array($this->result) )
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return false;
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if ( empty($this->result['destination_name']) )
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return false;
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$plugin = get_plugins('/' . $this->result['destination_name']); //Ensure to pass with leading slash
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if ( empty($plugin) )
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return false;
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$pluginfiles = array_keys($plugin); //Assume the requested plugin is the first in the list
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return $this->result['destination_name'] . '/' . $pluginfiles[0];
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}
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/**
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* Deactivates a plugin before it is upgraded.
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*
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* Hooked to the {@see 'upgrader_pre_install'} filter by Plugin_Upgrader::upgrade().
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*
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* @since 2.8.0
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* @since 4.1.0 Added a return value.
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*
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* @param bool|WP_Error $return Upgrade offer return.
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* @param array $plugin Plugin package arguments.
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* @return bool|WP_Error The passed in $return param or WP_Error.
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*/
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public function deactivate_plugin_before_upgrade($return, $plugin) {
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if ( is_wp_error($return) ) //Bypass.
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return $return;
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// When in cron (background updates) don't deactivate the plugin, as we require a browser to reactivate it
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if ( wp_doing_cron() )
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return $return;
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$plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
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if ( empty($plugin) )
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return new WP_Error('bad_request', $this->strings['bad_request']);
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if ( is_plugin_active($plugin) ) {
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//Deactivate the plugin silently, Prevent deactivation hooks from running.
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deactivate_plugins($plugin, true);
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}
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return $return;
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}
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/**
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* Delete the old plugin during an upgrade.
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*
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* Hooked to the {@see 'upgrader_clear_destination'} filter by
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* Plugin_Upgrader::upgrade() and Plugin_Upgrader::bulk_upgrade().
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*
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* @since 2.8.0
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*
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* @global WP_Filesystem_Base $wp_filesystem Subclass
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*
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* @param bool|WP_Error $removed
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* @param string $local_destination
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* @param string $remote_destination
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* @param array $plugin
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* @return WP_Error|bool
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*/
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public function delete_old_plugin($removed, $local_destination, $remote_destination, $plugin) {
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global $wp_filesystem;
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if ( is_wp_error($removed) )
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return $removed; //Pass errors through.
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$plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
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if ( empty($plugin) )
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return new WP_Error('bad_request', $this->strings['bad_request']);
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$plugins_dir = $wp_filesystem->wp_plugins_dir();
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$this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin) );
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if ( ! $wp_filesystem->exists($this_plugin_dir) ) //If it's already vanished.
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return $removed;
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// If plugin is in its own directory, recursively delete the directory.
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if ( strpos($plugin, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory separator AND that it's not the root plugin folder
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$deleted = $wp_filesystem->delete($this_plugin_dir, true);
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else
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$deleted = $wp_filesystem->delete($plugins_dir . $plugin);
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if ( ! $deleted )
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return new WP_Error('remove_old_failed', $this->strings['remove_old_failed']);
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return true;
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}
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}
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