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WordPress/wp-admin/includes/plugin-install.php

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PHP
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<?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;
// Allows a plugin to override the WordPress.org API entirely.
// Use the filter 'plugins_api_result' to merely add results.
// Please ensure that a object is returned from the following filters.
$args = apply_filters('plugins_api_args', $args, $action);
$res = apply_filters('plugins_api', false, $action, $args);
if ( false === $res ) {
$request = wp_remote_post('http://api.wordpress.org/plugins/info/1.0/', array( 'timeout' => 15, 'body' => array('action' => $action, 'request' => serialize($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&#8217;s configuration. If you continue to have problems, please try the <a href="http://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&#8217;s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ), wp_remote_retrieve_body( $request ) );
}
} elseif ( !is_wp_error($res) ) {
$res->external = true;
}
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="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>
<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']) ? stripslashes( $_REQUEST['type'] ) : 'term';
$term = isset($_REQUEST['s']) ? stripslashes( $_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'] ) ? stripslashes( $_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_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
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']) )
$url .= '&amp;from=' . urlencode(stripslashes($_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' => stripslashes( $_REQUEST['plugin'] ) ));
if ( is_wp_error($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 );
}
$section = isset($_REQUEST['section']) ? stripslashes( $_REQUEST['section'] ) : 'description'; //Default to the Description tab, Do not translate, API returns English.
if ( empty($section) || ! isset($api->sections[ $section ]) )
$section = array_shift( $section_titles = array_keys((array)$api->sections) );
iframe_header( __('Plugin Install') );
echo "<div id='$tab-header'>\n";
echo "<ul id='sidemenu'>\n";
foreach ( (array)$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( $section_name );
echo "\t<li><a name='$san_section' href='$href' $class>$title</a></li>\n";
}
echo "</ul>\n";
echo "</div>\n";
?>
<div class="alignright fyi">
<?php if ( ! empty($api->download_link) && ( current_user_can('install_plugins') || current_user_can('update_plugins') ) ) : ?>
<p class="action-button">
<?php
$status = install_plugin_install_status($api);
switch ( $status['status'] ) {
case 'install':
if ( $status['url'] )
echo '<a href="' . $status['url'] . '" target="_parent">' . __('Install Now') . '</a>';
break;
case 'update_available':
if ( $status['url'] )
echo '<a href="' . $status['url'] . '" target="_parent">' . __('Install Update Now') .'</a>';
break;
case 'newer_installed':
echo '<a>' . sprintf(__('Newer Version (%s) Installed'), $status['version']) . '</a>';
break;
case 'latest_installed':
echo '<a>' . __('Latest Version Installed') . '</a>';
break;
}
?>
</p>
<?php endif; ?>
<h2 class="mainheader"><?php /* translators: For Your Information */ _e('FYI') ?></h2>
<ul>
<?php if ( ! empty($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="http://wordpress.org/extend/plugins/<?php echo $api->slug ?>/"><?php _e('WordPress.org Plugin Page &#187;') ?></a></li>
<?php endif; if ( ! empty($api->homepage) ) : ?>
<li><a target="_blank" href="<?php echo $api->homepage ?>"><?php _e('Plugin Homepage &#187;') ?></a></li>
<?php endif; ?>
</ul>
<?php if ( ! empty($api->rating) ) : ?>
<h2><?php _e('Average Rating') ?></h2>
<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)); ?>">
<div class="star star-rating" style="width: <?php echo esc_attr( str_replace( ',', '.', $api->rating ) ); ?>px"></div>
</div>
<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, 'http://wordpress.org/extend/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: {$display};'>\n";
echo "\t\t<h2 class='long-header'>$title</h2>";
echo $content;
echo "\t</div>\n";
}
echo "</div>\n";
iframe_footer();
exit;
}
add_action('install_plugins_pre_plugin-information', 'install_plugin_information');
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