3 * WordPress Plugin Install Administration API
6 * @subpackage Administration
10 * Retrieve plugin installer pages from WordPress Plugins API.
12 * It is possible for a plugin to override the Plugin API result with three
13 * filters. Assume this is for plugins, which can extend on the Plugin Info to
14 * offer more choices. This is very powerful and must be used with care, when
15 * overriding the filters.
17 * The first filter, 'plugins_api_args', is for the args and gives the action as
18 * the second parameter. The hook for 'plugins_api_args' must ensure that an
21 * The second filter, 'plugins_api', is the result that would be returned.
25 * @param string $action
26 * @param array|object $args Optional. Arguments to serialize for the Plugin Info API.
27 * @return object plugins_api response object on success, WP_Error on failure.
29 function plugins_api($action, $args = null) {
31 if ( is_array($args) )
32 $args = (object)$args;
34 if ( !isset($args->per_page) )
38 * Override the Plugin Install API arguments.
40 * Please ensure that an object is returned.
44 * @param object $args Plugin API arguments.
45 * @param string $action The type of information being requested from the Plugin Install API.
47 $args = apply_filters( 'plugins_api_args', $args, $action );
50 * Allows a plugin to override the WordPress.org Plugin Install API entirely.
52 * Please ensure that an object is returned.
56 * @param bool|object The result object. Default is false.
57 * @param string $action The type of information being requested from the Plugin Install API.
58 * @param object $args Plugin API arguments.
60 $res = apply_filters( 'plugins_api', false, $action, $args );
62 if ( false === $res ) {
63 $url = $http_url = 'http://api.wordpress.org/plugins/info/1.0/';
64 if ( $ssl = wp_http_supports( array( 'ssl' ) ) )
65 $url = set_url_scheme( $url, 'https' );
71 'request' => serialize( $args )
74 $request = wp_remote_post( $url, $args );
76 if ( $ssl && is_wp_error( $request ) ) {
77 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="http://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 );
78 $request = wp_remote_post( $http_url, $args );
81 if ( is_wp_error($request) ) {
82 $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="http://wordpress.org/support/">support forums</a>.' ), $request->get_error_message() );
84 $res = maybe_unserialize( wp_remote_retrieve_body( $request ) );
85 if ( ! is_object( $res ) && ! is_array( $res ) )
86 $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="http://wordpress.org/support/">support forums</a>.' ), wp_remote_retrieve_body( $request ) );
88 } elseif ( !is_wp_error($res) ) {
89 $res->external = true;
93 * Filter the Plugin Install API response results.
97 * @param object|WP_Error $res Response object or WP_Error.
98 * @param string $action The type of information being requested from the Plugin Install API.
99 * @param object $args Plugin API arguments.
101 return apply_filters( 'plugins_api_result', $res, $action, $args );
105 * Retrieve popular WordPress plugin tags.
112 function install_popular_tags( $args = array() ) {
113 $key = md5(serialize($args));
114 if ( false !== ($tags = get_site_transient('poptags_' . $key) ) )
117 $tags = plugins_api('hot_tags', $args);
119 if ( is_wp_error($tags) )
122 set_site_transient( 'poptags_' . $key, $tags, 3 * HOUR_IN_SECONDS );
127 function install_dashboard() {
129 <p><?php printf( __( 'Plugins extend and expand the functionality of WordPress. You may automatically install plugins from the <a href="%1$s">WordPress Plugin Directory</a> or upload a plugin in .zip format via <a href="%2$s">this page</a>.' ), 'http://wordpress.org/plugins/', self_admin_url( 'plugin-install.php?tab=upload' ) ); ?></p>
131 <h4><?php _e('Search') ?></h4>
132 <?php install_search_form( false ); ?>
134 <h4><?php _e('Popular tags') ?></h4>
135 <p class="install-help"><?php _e('You may also browse based on the most popular tags in the Plugin Directory:') ?></p>
138 $api_tags = install_popular_tags();
140 echo '<p class="popular-tags">';
141 if ( is_wp_error($api_tags) ) {
142 echo $api_tags->get_error_message();
144 //Set up the tags in a way which can be interpreted by wp_generate_tag_cloud()
146 foreach ( (array)$api_tags as $tag )
147 $tags[ $tag['name'] ] = (object) array(
148 'link' => esc_url( self_admin_url('plugin-install.php?tab=search&type=tag&s=' . urlencode($tag['name'])) ),
149 'name' => $tag['name'],
150 'id' => sanitize_title_with_dashes($tag['name']),
151 'count' => $tag['count'] );
152 echo wp_generate_tag_cloud($tags, array( 'single_text' => __('%s plugin'), 'multiple_text' => __('%s plugins') ) );
154 echo '</p><br class="clear" />';
156 add_action('install_plugins_dashboard', 'install_dashboard');
159 * Display search form for searching plugins.
163 function install_search_form( $type_selector = true ) {
164 $type = isset($_REQUEST['type']) ? wp_unslash( $_REQUEST['type'] ) : 'term';
165 $term = isset($_REQUEST['s']) ? wp_unslash( $_REQUEST['s'] ) : '';
167 ?><form id="search-plugins" method="get" action="">
168 <input type="hidden" name="tab" value="search" />
169 <?php if ( $type_selector ) : ?>
170 <select name="type" id="typeselector">
171 <option value="term"<?php selected('term', $type) ?>><?php _e('Keyword'); ?></option>
172 <option value="author"<?php selected('author', $type) ?>><?php _e('Author'); ?></option>
173 <option value="tag"<?php selected('tag', $type) ?>><?php _ex('Tag', 'Plugin Installer'); ?></option>
176 <input type="search" name="s" value="<?php echo esc_attr($term) ?>" autofocus="autofocus" />
177 <label class="screen-reader-text" for="plugin-search-input"><?php _e('Search Plugins'); ?></label>
178 <?php submit_button( __( 'Search Plugins' ), 'button', 'plugin-search-input', false ); ?>
186 * @param string $page
188 function install_plugins_upload( $page = 1 ) {
190 <h4><?php _e('Install a plugin in .zip format'); ?></h4>
191 <p class="install-help"><?php _e('If you have a plugin in a .zip format, you may install it by uploading it here.'); ?></p>
192 <form method="post" enctype="multipart/form-data" class="wp-upload-form" action="<?php echo self_admin_url('update.php?action=upload-plugin'); ?>">
193 <?php wp_nonce_field( 'plugin-upload'); ?>
194 <label class="screen-reader-text" for="pluginzip"><?php _e('Plugin zip file'); ?></label>
195 <input type="file" id="pluginzip" name="pluginzip" />
196 <?php submit_button( __( 'Install Now' ), 'button', 'install-plugin-submit', false ); ?>
200 add_action('install_plugins_upload', 'install_plugins_upload', 10, 1);
203 * Show a username form for the favorites page
207 function install_plugins_favorites_form() {
208 $user = ! empty( $_GET['user'] ) ? wp_unslash( $_GET['user'] ) : get_user_option( 'wporg_favorites' );
210 <p class="install-help"><?php _e( 'If you have marked plugins as favorites on WordPress.org, you can browse them here.' ); ?></p>
211 <form method="get" action="">
212 <input type="hidden" name="tab" value="favorites" />
214 <label for="user"><?php _e( 'Your WordPress.org username:' ); ?></label>
215 <input type="search" id="user" name="user" value="<?php echo esc_attr( $user ); ?>" />
216 <input type="submit" class="button" value="<?php esc_attr_e( 'Get Favorites' ); ?>" />
223 * Display plugin content based on plugin list.
227 function display_plugins_table() {
228 global $wp_list_table;
230 if ( current_filter() == 'install_plugins_favorites' && empty( $_GET['user'] ) && ! get_user_option( 'wporg_favorites' ) )
233 $wp_list_table->display();
235 add_action( 'install_plugins_search', 'display_plugins_table' );
236 add_action( 'install_plugins_featured', 'display_plugins_table' );
237 add_action( 'install_plugins_popular', 'display_plugins_table' );
238 add_action( 'install_plugins_new', 'display_plugins_table' );
239 add_action( 'install_plugins_favorites', 'display_plugins_table' );
242 * Determine the status we can perform on a plugin.
246 function install_plugin_install_status($api, $loop = false) {
247 // this function is called recursively, $loop prevents further loops.
248 if ( is_array($api) )
249 $api = (object) $api;
251 //Default to a "new" plugin
255 //Check to see if this plugin is known to be installed, and has an update awaiting it.
256 $update_plugins = get_site_transient('update_plugins');
257 if ( isset( $update_plugins->response ) ) {
258 foreach ( (array)$update_plugins->response as $file => $plugin ) {
259 if ( $plugin->slug === $api->slug ) {
260 $status = 'update_available';
261 $update_file = $file;
262 $version = $plugin->new_version;
263 if ( current_user_can('update_plugins') )
264 $url = wp_nonce_url(self_admin_url('update.php?action=upgrade-plugin&plugin=' . $update_file), 'upgrade-plugin_' . $update_file);
270 if ( 'install' == $status ) {
271 if ( is_dir( WP_PLUGIN_DIR . '/' . $api->slug ) ) {
272 $installed_plugin = get_plugins('/' . $api->slug);
273 if ( empty($installed_plugin) ) {
274 if ( current_user_can('install_plugins') )
275 $url = wp_nonce_url(self_admin_url('update.php?action=install-plugin&plugin=' . $api->slug), 'install-plugin_' . $api->slug);
277 $key = array_keys( $installed_plugin );
278 $key = array_shift( $key ); //Use the first plugin regardless of the name, Could have issues for multiple-plugins in one directory if they share different version numbers
279 if ( version_compare($api->version, $installed_plugin[ $key ]['Version'], '=') ){
280 $status = 'latest_installed';
281 } elseif ( version_compare($api->version, $installed_plugin[ $key ]['Version'], '<') ) {
282 $status = 'newer_installed';
283 $version = $installed_plugin[ $key ]['Version'];
285 //If the above update check failed, Then that probably means that the update checker has out-of-date information, force a refresh
287 delete_site_transient('update_plugins');
289 return install_plugin_install_status($api, true);
294 // "install" & no directory with that slug
295 if ( current_user_can('install_plugins') )
296 $url = wp_nonce_url(self_admin_url('update.php?action=install-plugin&plugin=' . $api->slug), 'install-plugin_' . $api->slug);
299 if ( isset($_GET['from']) )
300 $url .= '&from=' . urlencode( wp_unslash( $_GET['from'] ) );
302 return compact('status', 'url', 'version');
306 * Display plugin information in dialog box form.
310 function install_plugin_information() {
313 $api = plugins_api( 'plugin_information', array( 'slug' => wp_unslash( $_REQUEST['plugin'] ), 'is_ssl' => is_ssl() ) );
315 if ( is_wp_error($api) )
318 $plugins_allowedtags = array(
319 'a' => array( 'href' => array(), 'title' => array(), 'target' => array() ),
320 'abbr' => array( 'title' => array() ), 'acronym' => array( 'title' => array() ),
321 'code' => array(), 'pre' => array(), 'em' => array(), 'strong' => array(),
322 'div' => array(), 'p' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(),
323 'h1' => array(), 'h2' => array(), 'h3' => array(), 'h4' => array(), 'h5' => array(), 'h6' => array(),
324 'img' => array( 'src' => array(), 'class' => array(), 'alt' => array() )
327 $plugins_section_titles = array(
328 'description' => _x('Description', 'Plugin installer section title'),
329 'installation' => _x('Installation', 'Plugin installer section title'),
330 'faq' => _x('FAQ', 'Plugin installer section title'),
331 'screenshots' => _x('Screenshots', 'Plugin installer section title'),
332 'changelog' => _x('Changelog', 'Plugin installer section title'),
333 'other_notes' => _x('Other Notes', 'Plugin installer section title')
337 foreach ( (array)$api->sections as $section_name => $content )
338 $api->sections[$section_name] = wp_kses($content, $plugins_allowedtags);
339 foreach ( array( 'version', 'author', 'requires', 'tested', 'homepage', 'downloaded', 'slug' ) as $key ) {
340 if ( isset( $api->$key ) )
341 $api->$key = wp_kses( $api->$key, $plugins_allowedtags );
344 $section = isset( $_REQUEST['section'] ) ? wp_unslash( $_REQUEST['section'] ) : 'description'; //Default to the Description tab, Do not translate, API returns English.
345 if ( empty( $section ) || ! isset( $api->sections[ $section ] ) ) {
346 $section_titles = array_keys( (array) $api->sections );
347 $section = array_shift( $section_titles );
350 iframe_header( __('Plugin Install') );
351 echo "<div id='$tab-header'>\n";
352 echo "<ul id='sidemenu'>\n";
353 foreach ( (array)$api->sections as $section_name => $content ) {
355 if ( isset( $plugins_section_titles[ $section_name ] ) )
356 $title = $plugins_section_titles[ $section_name ];
358 $title = ucwords( str_replace( '_', ' ', $section_name ) );
360 $class = ( $section_name == $section ) ? ' class="current"' : '';
361 $href = add_query_arg( array('tab' => $tab, 'section' => $section_name) );
362 $href = esc_url($href);
363 $san_section = esc_attr( $section_name );
364 echo "\t<li><a name='$san_section' href='$href' $class>$title</a></li>\n";
369 <div class="alignright fyi">
370 <?php if ( ! empty($api->download_link) && ( current_user_can('install_plugins') || current_user_can('update_plugins') ) ) : ?>
371 <p class="action-button">
373 $status = install_plugin_install_status($api);
374 switch ( $status['status'] ) {
376 if ( $status['url'] )
377 echo '<a href="' . $status['url'] . '" target="_parent">' . __('Install Now') . '</a>';
379 case 'update_available':
380 if ( $status['url'] )
381 echo '<a href="' . $status['url'] . '" target="_parent">' . __('Install Update Now') .'</a>';
383 case 'newer_installed':
384 echo '<a>' . sprintf(__('Newer Version (%s) Installed'), $status['version']) . '</a>';
386 case 'latest_installed':
387 echo '<a>' . __('Latest Version Installed') . '</a>';
393 <h2 class="mainheader"><?php /* translators: For Your Information */ _e('FYI') ?></h2>
395 <?php if ( ! empty($api->version) ) : ?>
396 <li><strong><?php _e('Version:') ?></strong> <?php echo $api->version ?></li>
397 <?php endif; if ( ! empty($api->author) ) : ?>
398 <li><strong><?php _e('Author:') ?></strong> <?php echo links_add_target($api->author, '_blank') ?></li>
399 <?php endif; if ( ! empty($api->last_updated) ) : ?>
400 <li><strong><?php _e('Last Updated:') ?></strong> <span title="<?php echo $api->last_updated ?>"><?php
401 printf( __('%s ago'), human_time_diff(strtotime($api->last_updated)) ) ?></span></li>
402 <?php endif; if ( ! empty($api->requires) ) : ?>
403 <li><strong><?php _e('Requires WordPress Version:') ?></strong> <?php printf(__('%s or higher'), $api->requires) ?></li>
404 <?php endif; if ( ! empty($api->tested) ) : ?>
405 <li><strong><?php _e('Compatible up to:') ?></strong> <?php echo $api->tested ?></li>
406 <?php endif; if ( ! empty($api->downloaded) ) : ?>
407 <li><strong><?php _e('Downloaded:') ?></strong> <?php printf(_n('%s time', '%s times', $api->downloaded), number_format_i18n($api->downloaded)) ?></li>
408 <?php endif; if ( ! empty($api->slug) && empty($api->external) ) : ?>
409 <li><a target="_blank" href="http://wordpress.org/plugins/<?php echo $api->slug ?>/"><?php _e('WordPress.org Plugin Page »') ?></a></li>
410 <?php endif; if ( ! empty($api->homepage) ) : ?>
411 <li><a target="_blank" href="<?php echo $api->homepage ?>"><?php _e('Plugin Homepage »') ?></a></li>
414 <?php if ( ! empty($api->rating) ) : ?>
415 <h2><?php _e('Average Rating') ?></h2>
416 <div class="star-holder" title="<?php printf(_n('(based on %s rating)', '(based on %s ratings)', $api->num_ratings), number_format_i18n($api->num_ratings)); ?>">
417 <div class="star star-rating" style="width: <?php echo esc_attr( str_replace( ',', '.', $api->rating ) ); ?>px"></div>
419 <small><?php printf(_n('(based on %s rating)', '(based on %s ratings)', $api->num_ratings), number_format_i18n($api->num_ratings)); ?></small>
422 <div id="section-holder" class="wrap">
424 if ( !empty($api->tested) && version_compare( substr($GLOBALS['wp_version'], 0, strlen($api->tested)), $api->tested, '>') )
425 echo '<div class="updated"><p>' . __('<strong>Warning:</strong> This plugin has <strong>not been tested</strong> with your current version of WordPress.') . '</p></div>';
427 else if ( !empty($api->requires) && version_compare( substr($GLOBALS['wp_version'], 0, strlen($api->requires)), $api->requires, '<') )
428 echo '<div class="updated"><p>' . __('<strong>Warning:</strong> This plugin has <strong>not been marked as compatible</strong> with your version of WordPress.') . '</p></div>';
430 foreach ( (array)$api->sections as $section_name => $content ) {
432 if ( isset( $plugins_section_titles[ $section_name ] ) )
433 $title = $plugins_section_titles[ $section_name ];
435 $title = ucwords( str_replace( '_', ' ', $section_name ) );
437 $content = links_add_base_url($content, 'http://wordpress.org/plugins/' . $api->slug . '/');
438 $content = links_add_target($content, '_blank');
440 $san_section = esc_attr( $section_name );
442 $display = ( $section_name == $section ) ? 'block' : 'none';
444 echo "\t<div id='section-{$san_section}' class='section' style='display: {$display};'>\n";
445 echo "\t\t<h2 class='long-header'>$title</h2>";
454 add_action('install_plugins_pre_plugin-information', 'install_plugin_information');