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File: plugin-install.php
<?php /** * WordPress Plugin Install Administration API * * @package WordPress * @subpackage Administration */ /** * Retrieve plugin installer pages from WordPress Plugins API. * * It is possible for a plugin to override the Plugin API result with three * filters. Assume this is for plugins, which can extend on the Plugin Info to * offer more choices. This is very powerful and must be used with care, when * overriding the filters. * * The first filter, 'plugins_api_args', is for the args and gives the action as * the second parameter. The hook for 'plugins_api_args' must ensure that an * object is returned. * * The second filter, 'plugins_api', is the result that would be returned. * * @since 2.7.0 * * @param string $action * @param array|object $args Optional. Arguments to serialize for the Plugin Info API. * @return object plugins_api response object on success, WP_Error on failure. */ function plugins_api($action, $args = null) { if ( is_array($args) ) $args = (object)$args; if ( !isset($args->per_page) ) $args->per_page = 24; /** * Override the Plugin Install API arguments. * * Please ensure that an object is returned. * * @since 2.7.0 * * @param object $args Plugin API arguments. * @param string $action The type of information being requested from the Plugin Install API. */ $args = apply_filters( 'plugins_api_args', $args, $action ); /** * Allows a plugin to override the WordPress.org Plugin Install API entirely. * * Please ensure that an object is returned. * * @since 2.7.0 * * @param bool|object $result The result object. Default false. * @param string $action The type of information being requested from the Plugin Install API. * @param object $args Plugin API arguments. */ $res = apply_filters( 'plugins_api', false, $action, $args ); if ( false === $res ) { $url = $http_url = 'http://api.wordpress.org/plugins/info/1.0/'; if ( $ssl = wp_http_supports( array( 'ssl' ) ) ) $url = set_url_scheme( $url, 'https' ); $args = array( 'timeout' => 15, 'body' => array( 'action' => $action, 'request' => serialize( $args ) ) ); $request = wp_remote_post( $url, $args ); if ( $ssl && is_wp_error( $request ) ) { trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE ); $request = wp_remote_post( $http_url, $args ); } if ( is_wp_error($request) ) { $res = new WP_Error('plugins_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ), $request->get_error_message() ); } else { $res = maybe_unserialize( wp_remote_retrieve_body( $request ) ); if ( ! is_object( $res ) && ! is_array( $res ) ) $res = new WP_Error('plugins_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ), wp_remote_retrieve_body( $request ) ); } } elseif ( !is_wp_error($res) ) { $res->external = true; } /** * Filter the Plugin Install API response results. * * @since 2.7.0 * * @param object|WP_Error $res Response object or WP_Error. * @param string $action The type of information being requested from the Plugin Install API. * @param object $args Plugin API arguments. */ return apply_filters( 'plugins_api_result', $res, $action, $args ); } /** * Retrieve popular WordPress plugin tags. * * @since 2.7.0 * * @param array $args * @return array */ function install_popular_tags( $args = array() ) { $key = md5(serialize($args)); if ( false !== ($tags = get_site_transient('poptags_' . $key) ) ) return $tags; $tags = plugins_api('hot_tags', $args); if ( is_wp_error($tags) ) return $tags; set_site_transient( 'poptags_' . $key, $tags, 3 * HOUR_IN_SECONDS ); return $tags; } function install_dashboard() { ?> <p><?php printf( __( 'Plugins extend and expand the functionality of WordPress. You may automatically install plugins from the <a href="%1$s">WordPress Plugin Directory</a> or upload a plugin in .zip format via <a href="%2$s">this page</a>.' ), 'https://wordpress.org/plugins/', self_admin_url( 'plugin-install.php?tab=upload' ) ); ?></p> <h4><?php _e('Search') ?></h4> <?php install_search_form( false ); ?> <h4><?php _e('Popular tags') ?></h4> <p class="install-help"><?php _e('You may also browse based on the most popular tags in the Plugin Directory:') ?></p> <?php $api_tags = install_popular_tags(); echo '<p class="popular-tags">'; if ( is_wp_error($api_tags) ) { echo $api_tags->get_error_message(); } else { //Set up the tags in a way which can be interpreted by wp_generate_tag_cloud() $tags = array(); foreach ( (array)$api_tags as $tag ) $tags[ $tag['name'] ] = (object) array( 'link' => esc_url( self_admin_url('plugin-install.php?tab=search&type=tag&s=' . urlencode($tag['name'])) ), 'name' => $tag['name'], 'id' => sanitize_title_with_dashes($tag['name']), 'count' => $tag['count'] ); echo wp_generate_tag_cloud($tags, array( 'single_text' => __('%s plugin'), 'multiple_text' => __('%s plugins') ) ); } echo '</p><br class="clear" />'; } add_action('install_plugins_dashboard', 'install_dashboard'); /** * Display search form for searching plugins. * * @since 2.7.0 */ function install_search_form( $type_selector = true ) { $type = isset($_REQUEST['type']) ? wp_unslash( $_REQUEST['type'] ) : 'term'; $term = isset($_REQUEST['s']) ? wp_unslash( $_REQUEST['s'] ) : ''; ?><form id="search-plugins" method="get" action=""> <input type="hidden" name="tab" value="search" /> <?php if ( $type_selector ) : ?> <select name="type" id="typeselector"> <option value="term"<?php selected('term', $type) ?>><?php _e('Keyword'); ?></option> <option value="author"<?php selected('author', $type) ?>><?php _e('Author'); ?></option> <option value="tag"<?php selected('tag', $type) ?>><?php _ex('Tag', 'Plugin Installer'); ?></option> </select> <?php endif; ?> <input type="search" name="s" value="<?php echo esc_attr($term) ?>" autofocus="autofocus" /> <label class="screen-reader-text" for="plugin-search-input"><?php _e('Search Plugins'); ?></label> <?php submit_button( __( 'Search Plugins' ), 'button', 'plugin-search-input', false ); ?> </form><?php } /** * Upload from zip * @since 2.8.0 * * @param string $page */ function install_plugins_upload( $page = 1 ) { ?> <h4><?php _e('Install a plugin in .zip format'); ?></h4> <p class="install-help"><?php _e('If you have a plugin in a .zip format, you may install it by uploading it here.'); ?></p> <form method="post" enctype="multipart/form-data" class="wp-upload-form" action="<?php echo self_admin_url('update.php?action=upload-plugin'); ?>"> <?php wp_nonce_field( 'plugin-upload'); ?> <label class="screen-reader-text" for="pluginzip"><?php _e('Plugin zip file'); ?></label> <input type="file" id="pluginzip" name="pluginzip" /> <?php submit_button( __( 'Install Now' ), 'button', 'install-plugin-submit', false ); ?> </form> <?php } add_action('install_plugins_upload', 'install_plugins_upload', 10, 1); /** * Show a username form for the favorites page * @since 3.5.0 * */ function install_plugins_favorites_form() { $user = ! empty( $_GET['user'] ) ? wp_unslash( $_GET['user'] ) : get_user_option( 'wporg_favorites' ); ?> <p class="install-help"><?php _e( 'If you have marked plugins as favorites on WordPress.org, you can browse them here.' ); ?></p> <form method="get" action=""> <input type="hidden" name="tab" value="favorites" /> <p> <label for="user"><?php _e( 'Your WordPress.org username:' ); ?></label> <input type="search" id="user" name="user" value="<?php echo esc_attr( $user ); ?>" /> <input type="submit" class="button" value="<?php esc_attr_e( 'Get Favorites' ); ?>" /> </p> </form> <?php } /** * Display plugin content based on plugin list. * * @since 2.7.0 */ function display_plugins_table() { global $wp_list_table; if ( current_filter() == 'install_plugins_favorites' && empty( $_GET['user'] ) && ! get_user_option( 'wporg_favorites' ) ) return; $wp_list_table->display(); } add_action( 'install_plugins_search', 'display_plugins_table' ); add_action( 'install_plugins_featured', 'display_plugins_table' ); add_action( 'install_plugins_popular', 'display_plugins_table' ); add_action( 'install_plugins_new', 'display_plugins_table' ); add_action( 'install_plugins_favorites', 'display_plugins_table' ); /** * Determine the status we can perform on a plugin. * * @since 3.0.0 */ function install_plugin_install_status($api, $loop = false) { // this function is called recursively, $loop prevents further loops. if ( is_array($api) ) $api = (object) $api; //Default to a "new" plugin $status = 'install'; $url = false; //Check to see if this plugin is known to be installed, and has an update awaiting it. $update_plugins = get_site_transient('update_plugins'); if ( isset( $update_plugins->response ) ) { foreach ( (array)$update_plugins->response as $file => $plugin ) { if ( $plugin->slug === $api->slug ) { $status = 'update_available'; $update_file = $file; $version = $plugin->new_version; if ( current_user_can('update_plugins') ) $url = wp_nonce_url(self_admin_url('update.php?action=upgrade-plugin&plugin=' . $update_file), 'upgrade-plugin_' . $update_file); break; } } } if ( 'install' == $status ) { if ( is_dir( WP_PLUGIN_DIR . '/' . $api->slug ) ) { $installed_plugin = get_plugins('/' . $api->slug); if ( empty($installed_plugin) ) { if ( current_user_can('install_plugins') ) $url = wp_nonce_url(self_admin_url('update.php?action=install-plugin&plugin=' . $api->slug), 'install-plugin_' . $api->slug); } else { $key = array_keys( $installed_plugin ); $key = array_shift( $key ); //Use the first plugin regardless of the name, Could have issues for multiple-plugins in one directory if they share different version numbers if ( version_compare($api->version, $installed_plugin[ $key ]['Version'], '=') ){ $status = 'latest_installed'; } elseif ( version_compare($api->version, $installed_plugin[ $key ]['Version'], '<') ) { $status = 'newer_installed'; $version = $installed_plugin[ $key ]['Version']; } else { //If the above update check failed, Then that probably means that the update checker has out-of-date information, force a refresh if ( ! $loop ) { delete_site_transient('update_plugins'); wp_update_plugins(); return install_plugin_install_status($api, true); } } } } else { // "install" & no directory with that slug if ( current_user_can('install_plugins') ) $url = wp_nonce_url(self_admin_url('update.php?action=install-plugin&plugin=' . $api->slug), 'install-plugin_' . $api->slug); } } if ( isset($_GET['from']) ) $url .= '&from=' . urlencode( wp_unslash( $_GET['from'] ) ); return compact('status', 'url', 'version'); } /** * Display plugin information in dialog box form. * * @since 2.7.0 */ function install_plugin_information() { global $tab; $api = plugins_api( 'plugin_information', array( 'slug' => wp_unslash( $_REQUEST['plugin'] ), 'is_ssl' => is_ssl() ) ); if ( is_wp_error( $api ) ) wp_die( $api ); $plugins_allowedtags = array( 'a' => array( 'href' => array(), 'title' => array(), 'target' => array() ), 'abbr' => array( 'title' => array() ), 'acronym' => array( 'title' => array() ), 'code' => array(), 'pre' => array(), 'em' => array(), 'strong' => array(), 'div' => array(), 'p' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(), 'h1' => array(), 'h2' => array(), 'h3' => array(), 'h4' => array(), 'h5' => array(), 'h6' => array(), 'img' => array( 'src' => array(), 'class' => array(), 'alt' => array() ) ); $plugins_section_titles = array( 'description' => _x('Description', 'Plugin installer section title'), 'installation' => _x('Installation', 'Plugin installer section title'), 'faq' => _x('FAQ', 'Plugin installer section title'), 'screenshots' => _x('Screenshots', 'Plugin installer section title'), 'changelog' => _x('Changelog', 'Plugin installer section title'), 'other_notes' => _x('Other Notes', 'Plugin installer section title') ); //Sanitize HTML foreach ( (array)$api->sections as $section_name => $content ) { $api->sections[$section_name] = wp_kses($content, $plugins_allowedtags); } foreach ( array( 'version', 'author', 'requires', 'tested', 'homepage', 'downloaded', 'slug' ) as $key ) { if ( isset( $api->$key ) ) $api->$key = wp_kses( $api->$key, $plugins_allowedtags ); } $_tab = esc_attr( $tab ); $section = isset( $_REQUEST['section'] ) ? wp_unslash( $_REQUEST['section'] ) : 'description'; //Default to the Description tab, Do not translate, API returns English. if ( empty( $section ) || ! isset( $api->sections[ $section ] ) ) { $section_titles = array_keys( (array) $api->sections ); $section = array_shift( $section_titles ); } iframe_header( __('Plugin Install') ); echo "<div id='{$_tab}-title'>{$api->name}</div>"; echo "<div id='{$_tab}-tabs'>\n"; foreach ( (array)$api->sections as $section_name => $content ) { if ( isset( $plugins_section_titles[ $section_name ] ) ) $title = $plugins_section_titles[ $section_name ]; else $title = ucwords( str_replace( '_', ' ', $section_name ) ); $class = ( $section_name == $section ) ? ' class="current"' : ''; $href = add_query_arg( array('tab' => $tab, 'section' => $section_name) ); $href = esc_url( $href ); $san_section = esc_attr( $section_name ); echo "\t<a name='$san_section' href='$href' $class>$title</a>\n"; } echo "</div>\n"; ?> <div id="<?php echo $_tab; ?>-content"> <div class="fyi"> <ul> <?php if ( ! empty( $api->version ) ) : ?> <li><strong><?php _e('Version:') ?></strong> <?php echo $api->version ?></li> <?php endif; if ( ! empty( $api->author ) ) : ?> <li><strong><?php _e('Author:') ?></strong> <?php echo links_add_target($api->author, '_blank') ?></li> <?php endif; if ( ! empty( $api->last_updated ) ) : ?> <li><strong><?php _e('Last Updated:') ?></strong> <span title="<?php echo $api->last_updated ?>"><?php printf( __('%s ago'), human_time_diff(strtotime($api->last_updated)) ) ?></span></li> <?php endif; if ( ! empty( $api->requires ) ) : ?> <li><strong><?php _e('Requires WordPress Version:') ?></strong> <?php printf(__('%s or higher'), $api->requires) ?></li> <?php endif; if ( ! empty( $api->tested ) ) : ?> <li><strong><?php _e('Compatible up to:') ?></strong> <?php echo $api->tested ?></li> <?php endif; if ( ! empty( $api->downloaded ) ) : ?> <li><strong><?php _e('Downloaded:') ?></strong> <?php printf(_n('%s time', '%s times', $api->downloaded), number_format_i18n($api->downloaded)) ?></li> <?php endif; if ( ! empty( $api->slug ) && empty( $api->external ) ) : ?> <li><a target="_blank" href="https://wordpress.org/plugins/<?php echo $api->slug ?>/"><?php _e('WordPress.org Plugin Page »') ?></a></li> <?php endif; if ( ! empty( $api->homepage ) ) : ?> <li><a target="_blank" href="<?php echo $api->homepage ?>"><?php _e('Plugin Homepage »') ?></a></li> <?php endif; ?> </ul> <?php if ( ! empty( $api->rating ) ) : ?> <h3><?php _e('Average Rating') ?></h3> <?php wp_star_rating( array( 'rating' => $api->rating, 'type' => 'percent', 'number' => $api->num_ratings ) ); ?> <small><?php printf( _n('(based on %s rating)', '(based on %s ratings)', $api->num_ratings), number_format_i18n($api->num_ratings) ); ?></small> <?php endif; ?> </div> <div id="section-holder" class="wrap"> <?php if ( ! empty( $api->tested ) && version_compare( substr( $GLOBALS['wp_version'], 0, strlen( $api->tested ) ), $api->tested, '>' ) ) echo '<div class="updated"><p>' . __('<strong>Warning:</strong> This plugin has <strong>not been tested</strong> with your current version of WordPress.') . '</p></div>'; else if ( ! empty( $api->requires ) && version_compare( substr( $GLOBALS['wp_version'], 0, strlen( $api->requires ) ), $api->requires, '<' ) ) echo '<div class="updated"><p>' . __('<strong>Warning:</strong> This plugin has <strong>not been marked as compatible</strong> with your version of WordPress.') . '</p></div>'; foreach ( (array)$api->sections as $section_name => $content ) { if ( isset( $plugins_section_titles[ $section_name ] ) ) $title = $plugins_section_titles[ $section_name ]; else $title = ucwords( str_replace( '_', ' ', $section_name ) ); $content = links_add_base_url( $content, 'https://wordpress.org/plugins/' . $api->slug . '/' ); $content = links_add_target( $content, '_blank' ); $san_section = esc_attr( $section_name ); $display = ( $section_name == $section ) ? 'block' : 'none'; echo "\t<div id='section-{$san_section}' class='section' style='display: {$display};'>\n"; echo $content; echo "\t</div>\n"; } echo "</div>\n"; echo "</div>\n"; echo "<div id='$tab-footer'>\n"; if ( ! empty( $api->download_link ) && ( current_user_can('install_plugins') || current_user_can('update_plugins') ) ) { $status = install_plugin_install_status($api); switch ( $status['status'] ) { case 'install': if ( $status['url'] ) echo '<a class="button button-primary right" href="' . $status['url'] . '" target="_parent">' . __('Install Now') . '</a>'; break; case 'update_available': if ( $status['url'] ) echo '<a class="button button-primary right" href="' . $status['url'] . '" target="_parent">' . __('Install Update Now') .'</a>'; break; case 'newer_installed': echo '<a class="button button-primary right disabled">' . sprintf(__('Newer Version (%s) Installed'), $status['version']) . '</a>'; break; case 'latest_installed': echo '<a class="button button-primary right disabled">' . __('Latest Version Installed') . '</a>'; break; } } echo "</div>\n"; iframe_footer(); exit; } add_action('install_plugins_pre_plugin-information', 'install_plugin_information');