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<?php |
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// uncomment this line for testing |
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//set_site_transient( 'update_plugins', null ); |
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// Exit if accessed directly |
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if ( ! defined( 'ABSPATH' ) ) exit; |
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/** |
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* Allows plugins to use their own update API. |
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* |
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* @author Pippin Williamson |
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* @version 1.6.2 |
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*/ |
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class WOW_PLUGIN_UPDATE { |
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private $api_url = ''; |
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private $api_data = array(); |
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private $name = ''; |
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private $slug = ''; |
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private $version = ''; |
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/** |
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* Class constructor. |
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* |
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* @uses plugin_basename() |
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* @uses hook() |
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* |
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* @param string $_api_url The URL pointing to the custom API endpoint. |
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* @param string $_plugin_file Path to the plugin file. |
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* @param array $_api_data Optional data to send with API calls. |
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*/ |
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function __construct( $_api_url, $_plugin_file, $_api_data = null ) { |
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$this->api_url = trailingslashit( $_api_url ); |
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$this->api_data = $_api_data; |
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$this->name = plugin_basename( $_plugin_file ); |
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$this->slug = basename( $_plugin_file, '.php' ); |
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$this->version = $_api_data['version']; |
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// Set up hooks. |
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$this->init(); |
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add_action( 'admin_init', array( $this, 'show_changelog' ) ); |
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} |
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/** |
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* Set up WordPress filters to hook into WP's update process. |
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* |
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* @uses add_filter() |
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* |
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* @return void |
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*/ |
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public function init() { |
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add_filter( 'pre_set_site_transient_update_plugins', array( $this, 'check_update' ) ); |
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add_filter( 'plugins_api', array( $this, 'plugins_api_filter' ), 10, 3 ); |
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remove_action( 'after_plugin_row_' . $this->name, 'wp_plugin_update_row', 10, 2 ); |
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add_action( 'after_plugin_row_' . $this->name, array( $this, 'show_update_notification' ), 10, 2 ); |
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} |
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/** |
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* Check for Updates at the defined API endpoint and modify the update array. |
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* |
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* This function dives into the update API just when WordPress creates its update array, |
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* then adds a custom API call and injects the custom plugin data retrieved from the API. |
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* It is reassembled from parts of the native WordPress plugin update code. |
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* See wp-includes/update.php line 121 for the original wp_update_plugins() function. |
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* |
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* @uses api_request() |
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* |
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* @param array $_transient_data Update array build by WordPress. |
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* @return array Modified update array with custom plugin data. |
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*/ |
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function check_update( $_transient_data ) { |
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global $pagenow; |
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if( ! is_object( $_transient_data ) ) { |
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$_transient_data = new stdClass; |
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} |
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if( 'plugins.php' == $pagenow && is_multisite() ) { |
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return $_transient_data; |
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} |
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if ( empty( $_transient_data->response ) || empty( $_transient_data->response[ $this->name ] ) ) { |
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$version_info = $this->api_request( 'plugin_latest_version', array( 'slug' => $this->slug ) ); |
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if ( false !== $version_info && is_object( $version_info ) && isset( $version_info->new_version ) ) { |
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if( version_compare( $this->version, $version_info->new_version, '<' ) ) { |
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$_transient_data->response[ $this->name ] = $version_info; |
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} |
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$_transient_data->last_checked = time(); |
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$_transient_data->checked[ $this->name ] = $this->version; |
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} |
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} |
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return $_transient_data; |
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} |
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/** |
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* show update nofication row -- needed for multisite subsites, because WP won't tell you otherwise! |
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* |
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* @param string $file |
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* @param array $plugin |
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*/ |
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public function show_update_notification( $file, $plugin ) { |
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if( ! current_user_can( 'update_plugins' ) ) { |
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return; |
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} |
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if( ! is_multisite() ) { |
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return; |
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} |
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if ( $this->name != $file ) { |
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return; |
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} |
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// Remove our filter on the site transient |
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remove_filter( 'pre_set_site_transient_update_plugins', array( $this, 'check_update' ), 10 ); |
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$update_cache = get_site_transient( 'update_plugins' ); |
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$update_cache = is_object( $update_cache ) ? $update_cache : new stdClass(); |
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if ( empty( $update_cache->response ) || empty( $update_cache->response[ $this->name ] ) ) { |
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$cache_key = md5( 'edd_plugin_' .sanitize_key( $this->name ) . '_version_info' ); |
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$version_info = get_transient( $cache_key ); |
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if( false === $version_info ) { |
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$version_info = $this->api_request( 'plugin_latest_version', array( 'slug' => $this->slug ) ); |
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set_transient( $cache_key, $version_info, 3600 ); |
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} |
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if( ! is_object( $version_info ) ) { |
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return; |
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} |
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if( version_compare( $this->version, $version_info->new_version, '<' ) ) { |
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$update_cache->response[ $this->name ] = $version_info; |
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} |
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$update_cache->last_checked = time(); |
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$update_cache->checked[ $this->name ] = $this->version; |
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set_site_transient( 'update_plugins', $update_cache ); |
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} else { |
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$version_info = $update_cache->response[ $this->name ]; |
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} |
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// Restore our filter |
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add_filter( 'pre_set_site_transient_update_plugins', array( $this, 'check_update' ) ); |
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if ( ! empty( $update_cache->response[ $this->name ] ) && version_compare( $this->version, $version_info->new_version, '<' ) ) { |
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// build a plugin list row, with update notification |
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$wp_list_table = _get_list_table( 'WP_Plugins_List_Table' ); |
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echo '<tr class="plugin-update-tr"><td colspan="' . $wp_list_table->get_column_count() . '" class="plugin-update colspanchange"><div class="update-message">'; |
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$changelog_link = self_admin_url( 'index.php?edd_sl_action=view_plugin_changelog&plugin=' . $this->name . '&slug=' . $this->slug . '&TB_iframe=true&width=772&height=911' ); |
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if ( empty( $version_info->download_link ) ) { |
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printf( |
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__( 'There is a new version of %1$s available. <a target="_blank" class="thickbox" href="%2$s">View version %3$s details</a>.', 'edd' ), |
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esc_html( $version_info->name ), |
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esc_url( $changelog_link ), |
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esc_html( $version_info->new_version ) |
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); |
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} else { |
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printf( |
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__( 'There is a new version of %1$s available. <a target="_blank" class="thickbox" href="%2$s">View version %3$s details</a> or <a href="%4$s">update now</a>.', 'edd' ), |
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esc_html( $version_info->name ), |
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esc_url( $changelog_link ), |
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esc_html( $version_info->new_version ), |
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esc_url( wp_nonce_url( self_admin_url( 'update.php?action=upgrade-plugin&plugin=' ) . $this->name, 'upgrade-plugin_' . $this->name ) ) |
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); |
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} |
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echo '</div></td></tr>'; |
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} |
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} |
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/** |
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* Updates information on the "View version x.x details" page with custom data. |
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* |
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* @uses api_request() |
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* |
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* @param mixed $_data |
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* @param string $_action |
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* @param object $_args |
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* @return object $_data |
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*/ |
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function plugins_api_filter( $_data, $_action = '', $_args = null ) { |
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if ( $_action != 'plugin_information' ) { |
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return $_data; |
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} |
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if ( ! isset( $_args->slug ) || ( $_args->slug != $this->slug ) ) { |
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return $_data; |
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} |
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$to_send = array( |
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'slug' => $this->slug, |
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'is_ssl' => is_ssl(), |
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'fields' => array( |
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'banners' => false, // These will be supported soon hopefully |
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'reviews' => false |
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) |
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); |
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$api_response = $this->api_request( 'plugin_information', $to_send ); |
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if ( false !== $api_response ) { |
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$_data = $api_response; |
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} |
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return $_data; |
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} |
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/** |
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* Disable SSL verification in order to prevent download update failures |
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* |
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* @param array $args |
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* @param string $url |
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* @return object $array |
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*/ |
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function http_request_args( $args, $url ) { |
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// If it is an https request and we are performing a package download, disable ssl verification |
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if ( strpos( $url, 'https://' ) !== false && strpos( $url, 'edd_action=package_download' ) ) { |
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$args['sslverify'] = false; |
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} |
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return $args; |
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} |
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/** |
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* Calls the API and, if successfull, returns the object delivered by the API. |
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* |
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* @uses get_bloginfo() |
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* @uses wp_remote_post() |
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* @uses is_wp_error() |
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* |
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* @param string $_action The requested action. |
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* @param array $_data Parameters for the API action. |
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* @return false|object |
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*/ |
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private function api_request( $_action, $_data ) { |
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global $wp_version; |
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$data = array_merge( $this->api_data, $_data ); |
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if ( $data['slug'] != $this->slug ) { |
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return; |
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} |
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if( $this->api_url == home_url() ) { |
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return false; // Don't allow a plugin to ping itself |
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} |
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$api_params = array( |
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'edd_action' => 'get_version', |
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'license' => ! empty( $data['license'] ) ? $data['license'] : '', |
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'item_name' => isset( $data['item_name'] ) ? $data['item_name'] : false, |
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'item_id' => isset( $data['item_id'] ) ? $data['item_id'] : false, |
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'slug' => $data['slug'], |
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'author' => $data['author'], |
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'url' => home_url() |
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); |
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$request = wp_remote_post( $this->api_url, array( 'timeout' => 15, 'sslverify' => false, 'body' => $api_params ) ); |
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if ( ! is_wp_error( $request ) ) { |
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$request = json_decode( wp_remote_retrieve_body( $request ) ); |
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} |
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if ( $request && isset( $request->sections ) ) { |
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$request->sections = maybe_unserialize( $request->sections ); |
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} else { |
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$request = false; |
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} |
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return $request; |
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} |
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public function show_changelog() { |
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if( empty( $_REQUEST['edd_sl_action'] ) || 'view_plugin_changelog' != $_REQUEST['edd_sl_action'] ) { |
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return; |
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} |
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if( empty( $_REQUEST['plugin'] ) ) { |
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return; |
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} |
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if( empty( $_REQUEST['slug'] ) ) { |
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return; |
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} |
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if( ! current_user_can( 'update_plugins' ) ) { |
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wp_die( __( 'You do not have permission to install plugin updates', 'edd' ), __( 'Error', 'edd' ), array( 'response' => 403 ) ); |
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} |
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$response = $this->api_request( 'plugin_latest_version', array( 'slug' => $_REQUEST['slug'] ) ); |
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if( $response && isset( $response->sections['changelog'] ) ) { |
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echo '<div style="background:#fff;padding:10px;">' . $response->sections['changelog'] . '</div>'; |
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} |
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exit; |
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} |
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} |
