/**
* Create a new instance of PluginUpdateUtility from its JSON-encoded representation.
*
* @param string $json
* @return PluginUpdateUtility
*/
public static function fromJson($json)
{
//Since update-related information is simply a subset of the full plugin info,
//we can parse the update JSON as if it was a plugin info string, then copy over
//the parts that we care about.
$pluginInfo = PU_PluginInfo::fromJson($json);
if ($pluginInfo != null) {
return PluginUpdateUtility::fromPluginInfo($pluginInfo);
} else {
return null;
}
}
/**
* Retrieve plugin info from the configured API endpoint.
*
* @uses wp_remote_get()
*
* @param array $queryArgs Additional query arguments to append to the request. Optional.
* @return $pluginInfo
*/
function requestInfo($queryArgs = array())
{
//Query args to append to the URL. Plugins can add their own by using a filter callback (see addQueryArgFilter()).
$queryArgs['installed_version'] = $this->getInstalledVersion();
$queryArgs['pu_request_plugin'] = $this->slug;
if (empty($queryArgs['pu_plugin_api']) && !empty($this->api_secret_key)) {
$queryArgs['pu_plugin_api'] = $this->api_secret_key;
}
if (empty($queryArgs['pu_install_key']) && !empty($this->install_key)) {
$queryArgs['pu_install_key'] = $this->install_key;
}
//include version info
$queryArgs['pue_active_version'] = $this->getInstalledVersion();
global $wp_version;
$queryArgs['wp_version'] = $wp_version;
//include domain and multisite stats
$queryArgs['domain'] = $_SERVER['SERVER_NAME'];
if (is_multisite()) {
$queryArgs['multisite'] = 1;
$queryArgs['network_activated'] = is_plugin_active_for_network($this->pluginFile);
global $wpdb;
$queryArgs['active_sites'] = $wpdb->get_var("SELECT count(blog_id) FROM {$wpdb->blogs} WHERE public = '1' AND archived = '0' AND spam = '0' AND deleted = '0'");
} else {
$queryArgs['multisite'] = 0;
$queryArgs['network_activated'] = 0;
$queryArgs['active_sites'] = 1;
}
$queryArgs = apply_filters('puc_request_info_query_args-' . $this->slug, $queryArgs);
//Various options for the wp_remote_get() call. Plugins can filter these, too.
$options = array('timeout' => 10, 'headers' => array('Accept' => 'application/json'));
$options = apply_filters('puc_request_info_options-' . $this->slug, array());
$url = $this->metadataUrl;
if (!empty($queryArgs)) {
$url = add_query_arg($queryArgs, $url);
}
//echo $url; //DEBUG
// Cache the API call so it only needs to be made once per plugin per page load.
static $plugin_info_cache;
$key = crc32(implode('', $queryArgs));
if (isset($plugin_info_cache[$key])) {
return $plugin_info_cache[$key];
}
$result = wp_remote_get($url, $options);
//echo $result['body']; //DEBUG
//Try to parse the response
$pluginInfo = null;
if (!is_wp_error($result) && isset($result['response']['code']) && $result['response']['code'] == 200 && !empty($result['body'])) {
$pluginInfo = PU_PluginInfo::fromJson($result['body']);
}
$pluginInfo = apply_filters('puc_request_info_result-' . $this->slug, $pluginInfo, $result);
$plugin_info_cache[$key] = $pluginInfo;
return $pluginInfo;
}