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) )
37 // Allows a plugin to override the WordPress.org API entirely.
38 // Use the filter 'plugins_api_result' to merely add results.
39 // Please ensure that a object is returned from the following filters.
40 $args = apply_filters('plugins_api_args', $args, $action);
41 $res = apply_filters('plugins_api', false, $action, $args);
43 if ( false === $res ) {
44 $request = wp_remote_post('http://api.wordpress.org/plugins/info/1.0/', array( 'timeout' => 15, 'body' => array('action' => $action, 'request' => serialize($args))) );
45 if ( is_wp_error($request) ) {
46 $res = new WP_Error('plugins_api_failed', __('An Unexpected HTTP Error occurred during the API request.'), $request->get_error_message() );
48 $res = unserialize( wp_remote_retrieve_body( $request ) );
50 $res = new WP_Error('plugins_api_failed', __('An unknown error occurred.'), wp_remote_retrieve_body( $request ) );
52 } elseif ( !is_wp_error($res) ) {
53 $res->external = true;
56 return apply_filters('plugins_api_result', $res, $action, $args);
60 * Retrieve popular WordPress plugin tags.
67 function install_popular_tags( $args = array() ) {
68 $key = md5(serialize($args));
69 if ( false !== ($tags = get_site_transient('poptags_' . $key) ) )
72 $tags = plugins_api('hot_tags', $args);
74 if ( is_wp_error($tags) )
77 set_site_transient('poptags_' . $key, $tags, 10800); // 3 * 60 * 60 = 10800
82 function install_dashboard() {
84 <p><?php printf( __( 'Plugins extend and expand the functionality of WordPress. You may automatically install plugins from the <a href="http://wordpress.org/extend/plugins/">WordPress Plugin Directory</a> or upload a plugin in .zip format via <a href="%s">this page</a>.' ), self_admin_url( 'plugin-install.php?tab=upload' ) ); ?></p>
86 <h4><?php _e('Search') ?></h4>
87 <p class="install-help"><?php _e('Search for plugins by keyword, author, or tag.') ?></p>
88 <?php install_search_form(); ?>
90 <h4><?php _e('Popular tags') ?></h4>
91 <p class="install-help"><?php _e('You may also browse based on the most popular tags in the Plugin Directory:') ?></p>
94 $api_tags = install_popular_tags();
96 echo '<p class="popular-tags">';
97 if ( is_wp_error($api_tags) ) {
98 echo $api_tags->get_error_message();
100 //Set up the tags in a way which can be interpreted by wp_generate_tag_cloud()
102 foreach ( (array)$api_tags as $tag )
103 $tags[ $tag['name'] ] = (object) array(
104 'link' => esc_url( self_admin_url('plugin-install.php?tab=search&type=tag&s=' . urlencode($tag['name'])) ),
105 'name' => $tag['name'],
106 'id' => sanitize_title_with_dashes($tag['name']),
107 'count' => $tag['count'] );
108 echo wp_generate_tag_cloud($tags, array( 'single_text' => __('%s plugin'), 'multiple_text' => __('%s plugins') ) );
110 echo '</p><br class="clear" />';
112 add_action('install_plugins_dashboard', 'install_dashboard');
115 * Display search form for searching plugins.
119 function install_search_form(){
120 $type = isset($_REQUEST['type']) ? stripslashes( $_REQUEST['type'] ) : '';
121 $term = isset($_REQUEST['s']) ? stripslashes( $_REQUEST['s'] ) : '';
123 ?><form id="search-plugins" method="get" action="">
124 <input type="hidden" name="tab" value="search" />
125 <select name="type" id="typeselector">
126 <option value="term"<?php selected('term', $type) ?>><?php _e('Term'); ?></option>
127 <option value="author"<?php selected('author', $type) ?>><?php _e('Author'); ?></option>
128 <option value="tag"<?php selected('tag', $type) ?>><?php _ex('Tag', 'Plugin Installer'); ?></option>
130 <input type="text" name="s" value="<?php echo esc_attr($term) ?>" />
131 <label class="screen-reader-text" for="plugin-search-input"><?php _e('Search Plugins'); ?></label>
132 <?php submit_button( __( 'Search Plugins' ), 'button', 'plugin-search-input', false ); ?>
140 * @param string $page
142 function install_plugins_upload( $page = 1 ) {
144 <h4><?php _e('Install a plugin in .zip format') ?></h4>
145 <p class="install-help"><?php _e('If you have a plugin in a .zip format, you may install it by uploading it here.') ?></p>
146 <form method="post" enctype="multipart/form-data" action="<?php echo self_admin_url('update.php?action=upload-plugin') ?>">
147 <?php wp_nonce_field( 'plugin-upload') ?>
148 <label class="screen-reader-text" for="pluginzip"><?php _e('Plugin zip file'); ?></label>
149 <input type="file" id="pluginzip" name="pluginzip" />
150 <input type="submit" class="button" value="<?php esc_attr_e('Install Now') ?>" />
154 add_action('install_plugins_upload', 'install_plugins_upload', 10, 1);
157 * Display plugin content based on plugin list.
161 function display_plugins_table() {
162 global $wp_list_table;
164 $wp_list_table->display();
166 add_action('install_plugins_search', 'display_plugins_table');
167 add_action('install_plugins_featured', 'display_plugins_table');
168 add_action('install_plugins_popular', 'display_plugins_table');
169 add_action('install_plugins_new', 'display_plugins_table');
170 add_action('install_plugins_updated', 'display_plugins_table');
173 * Determine the status we can perform on a plugin.
177 function install_plugin_install_status($api, $loop = false) {
178 // this function is called recursively, $loop prevents further loops.
179 if ( is_array($api) )
180 $api = (object) $api;
182 //Default to a "new" plugin
186 //Check to see if this plugin is known to be installed, and has an update awaiting it.
187 $update_plugins = get_site_transient('update_plugins');
188 if ( is_object( $update_plugins ) ) {
189 foreach ( (array)$update_plugins->response as $file => $plugin ) {
190 if ( $plugin->slug === $api->slug ) {
191 $status = 'update_available';
192 $update_file = $file;
193 $version = $plugin->new_version;
194 if ( current_user_can('update_plugins') )
195 $url = wp_nonce_url(self_admin_url('update.php?action=upgrade-plugin&plugin=' . $update_file), 'upgrade-plugin_' . $update_file);
201 if ( 'install' == $status ) {
202 if ( is_dir( WP_PLUGIN_DIR . '/' . $api->slug ) ) {
203 $installed_plugin = get_plugins('/' . $api->slug);
204 if ( empty($installed_plugin) ) {
205 if ( current_user_can('install_plugins') )
206 $url = wp_nonce_url(self_admin_url('update.php?action=install-plugin&plugin=' . $api->slug), 'install-plugin_' . $api->slug);
208 $key = array_shift( $key = array_keys($installed_plugin) ); //Use the first plugin regardless of the name, Could have issues for multiple-plugins in one directory if they share different version numbers
209 if ( version_compare($api->version, $installed_plugin[ $key ]['Version'], '=') ){
210 $status = 'latest_installed';
211 } elseif ( version_compare($api->version, $installed_plugin[ $key ]['Version'], '<') ) {
212 $status = 'newer_installed';
213 $version = $installed_plugin[ $key ]['Version'];
215 //If the above update check failed, Then that probably means that the update checker has out-of-date information, force a refresh
217 delete_site_transient('update_plugins');
219 return install_plugin_install_status($api, true);
224 // "install" & no directory with that slug
225 if ( current_user_can('install_plugins') )
226 $url = wp_nonce_url(self_admin_url('update.php?action=install-plugin&plugin=' . $api->slug), 'install-plugin_' . $api->slug);
229 if ( isset($_GET['from']) )
230 $url .= '&from=' . urlencode(stripslashes($_GET['from']));
232 return compact('status', 'url', 'version');
236 * Display plugin information in dialog box form.
240 function install_plugin_information() {
243 $api = plugins_api('plugin_information', array('slug' => stripslashes( $_REQUEST['plugin'] ) ));
245 if ( is_wp_error($api) )
248 $plugins_allowedtags = array('a' => array('href' => array(), 'title' => array(), 'target' => array()),
249 'abbr' => array('title' => array()), 'acronym' => array('title' => array()),
250 'code' => array(), 'pre' => array(), 'em' => array(), 'strong' => array(),
251 'div' => array(), 'p' => array(), 'ul' => array(), 'ol' => array(), 'li' => array(),
252 'h1' => array(), 'h2' => array(), 'h3' => array(), 'h4' => array(), 'h5' => array(), 'h6' => array(),
253 'img' => array('src' => array(), 'class' => array(), 'alt' => array()));
255 foreach ( (array)$api->sections as $section_name => $content )
256 $api->sections[$section_name] = wp_kses($content, $plugins_allowedtags);
257 foreach ( array( 'version', 'author', 'requires', 'tested', 'homepage', 'downloaded', 'slug' ) as $key ) {
258 if ( isset( $api->$key ) )
259 $api->$key = wp_kses( $api->$key, $plugins_allowedtags );
262 $section = isset($_REQUEST['section']) ? stripslashes( $_REQUEST['section'] ) : 'description'; //Default to the Description tab, Do not translate, API returns English.
263 if ( empty($section) || ! isset($api->sections[ $section ]) )
264 $section = array_shift( $section_titles = array_keys((array)$api->sections) );
266 iframe_header( __('Plugin Install') );
267 echo "<div id='$tab-header'>\n";
268 echo "<ul id='sidemenu'>\n";
269 foreach ( (array)$api->sections as $section_name => $content ) {
271 $title = $section_name;
272 $title = ucwords(str_replace('_', ' ', $title));
274 $class = ( $section_name == $section ) ? ' class="current"' : '';
275 $href = add_query_arg( array('tab' => $tab, 'section' => $section_name) );
276 $href = esc_url($href);
277 $san_title = esc_attr(sanitize_title_with_dashes($title));
278 echo "\t<li><a name='$san_title' target='' href='$href'$class>$title</a></li>\n";
283 <div class="alignright fyi">
284 <?php if ( ! empty($api->download_link) && ( current_user_can('install_plugins') || current_user_can('update_plugins') ) ) : ?>
285 <p class="action-button">
287 $status = install_plugin_install_status($api);
288 switch ( $status['status'] ) {
290 if ( $status['url'] )
291 echo '<a href="' . $status['url'] . '" target="_parent">' . __('Install Now') . '</a>';
293 case 'update_available':
294 if ( $status['url'] )
295 echo '<a href="' . $status['url'] . '" target="_parent">' . __('Install Update Now') .'</a>';
297 case 'newer_installed':
298 echo '<a>' . sprintf(__('Newer Version (%s) Installed'), $status['version']) . '</a>';
300 case 'latest_installed':
301 echo '<a>' . __('Latest Version Installed') . '</a>';
307 <h2 class="mainheader"><?php /* translators: For Your Information */ _e('FYI') ?></h2>
309 <?php if ( ! empty($api->version) ) : ?>
310 <li><strong><?php _e('Version:') ?></strong> <?php echo $api->version ?></li>
311 <?php endif; if ( ! empty($api->author) ) : ?>
312 <li><strong><?php _e('Author:') ?></strong> <?php echo links_add_target($api->author, '_blank') ?></li>
313 <?php endif; if ( ! empty($api->last_updated) ) : ?>
314 <li><strong><?php _e('Last Updated:') ?></strong> <span title="<?php echo $api->last_updated ?>"><?php
315 printf( __('%s ago'), human_time_diff(strtotime($api->last_updated)) ) ?></span></li>
316 <?php endif; if ( ! empty($api->requires) ) : ?>
317 <li><strong><?php _e('Requires WordPress Version:') ?></strong> <?php printf(__('%s or higher'), $api->requires) ?></li>
318 <?php endif; if ( ! empty($api->tested) ) : ?>
319 <li><strong><?php _e('Compatible up to:') ?></strong> <?php echo $api->tested ?></li>
320 <?php endif; if ( ! empty($api->downloaded) ) : ?>
321 <li><strong><?php _e('Downloaded:') ?></strong> <?php printf(_n('%s time', '%s times', $api->downloaded), number_format_i18n($api->downloaded)) ?></li>
322 <?php endif; if ( ! empty($api->slug) && empty($api->external) ) : ?>
323 <li><a target="_blank" href="http://wordpress.org/extend/plugins/<?php echo $api->slug ?>/"><?php _e('WordPress.org Plugin Page »') ?></a></li>
324 <?php endif; if ( ! empty($api->homepage) ) : ?>
325 <li><a target="_blank" href="<?php echo $api->homepage ?>"><?php _e('Plugin Homepage »') ?></a></li>
328 <?php if ( ! empty($api->rating) ) : ?>
329 <h2><?php _e('Average Rating') ?></h2>
330 <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)); ?>">
331 <div class="star star-rating" style="width: <?php echo esc_attr($api->rating) ?>px"></div>
332 <div class="star star5"><img src="<?php echo admin_url('images/star.png?v=20110615'); ?>" alt="<?php esc_attr_e('5 stars') ?>" /></div>
333 <div class="star star4"><img src="<?php echo admin_url('images/star.png?v=20110615'); ?>" alt="<?php esc_attr_e('4 stars') ?>" /></div>
334 <div class="star star3"><img src="<?php echo admin_url('images/star.png?v=20110615'); ?>" alt="<?php esc_attr_e('3 stars') ?>" /></div>
335 <div class="star star2"><img src="<?php echo admin_url('images/star.png?v=20110615'); ?>" alt="<?php esc_attr_e('2 stars') ?>" /></div>
336 <div class="star star1"><img src="<?php echo admin_url('images/star.png?v=20110615'); ?>" alt="<?php esc_attr_e('1 star') ?>" /></div>
338 <small><?php printf(_n('(based on %s rating)', '(based on %s ratings)', $api->num_ratings), number_format_i18n($api->num_ratings)); ?></small>
341 <div id="section-holder" class="wrap">
343 if ( !empty($api->tested) && version_compare( substr($GLOBALS['wp_version'], 0, strlen($api->tested)), $api->tested, '>') )
344 echo '<div class="updated"><p>' . __('<strong>Warning:</strong> This plugin has <strong>not been tested</strong> with your current version of WordPress.') . '</p></div>';
346 else if ( !empty($api->requires) && version_compare( substr($GLOBALS['wp_version'], 0, strlen($api->requires)), $api->requires, '<') )
347 echo '<div class="updated"><p>' . __('<strong>Warning:</strong> This plugin has <strong>not been marked as compatible</strong> with your version of WordPress.') . '</p></div>';
349 foreach ( (array)$api->sections as $section_name => $content ) {
350 $title = $section_name;
351 $title[0] = strtoupper($title[0]);
352 $title = str_replace('_', ' ', $title);
354 $content = links_add_base_url($content, 'http://wordpress.org/extend/plugins/' . $api->slug . '/');
355 $content = links_add_target($content, '_blank');
357 $san_title = esc_attr(sanitize_title_with_dashes($title));
359 $display = ( $section_name == $section ) ? 'block' : 'none';
361 echo "\t<div id='section-{$san_title}' class='section' style='display: {$display};'>\n";
362 echo "\t\t<h2 class='long-header'>$title</h2>";
371 add_action('install_plugins_pre_plugin-information', 'install_plugin_information');