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<?php
namespace WP_Defender\Traits;
trait Plugin {
/**
* Get all installed plugins.
*
* @return array
*/
public function get_plugins(): array {
if ( ! function_exists( 'get_plugins' ) ) {
require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
// WordPress caches this internally.
return get_plugins();
}
/**
* Get all slugs.
*
* @return array
*/
public function get_plugin_slugs(): array {
$slugs = [];
foreach ( $this->get_plugins() as $slug => $plugin ) {
$base_slug = explode( '/', $slug );
$slugs[] = array_shift( $base_slug );
}
return $slugs;
}
/**
* Get plugin data by slug.
*
* @param string $plugin_slug
*
* @return array
*/
public function get_plugin_data( $plugin_slug ): array {
foreach ( $this->get_plugins() as $slug => $plugin ) {
if ( $plugin_slug === $slug ) {
return $plugin;
}
}
return [];
}
/**
* @return string
*/
public function get_plugin_base_dir(): string {
if ( defined( 'WP_PLUGIN_DIR' ) ) {
return wp_normalize_path( WP_PLUGIN_DIR . '/' );
}
return wp_normalize_path( WP_CONTENT_DIR . '/plugins/' );
}
/**
* Does the plugin exist on wp.org?
*
* @param string $slug
*
* @return bool
*/
public function check_plugin_on_wp_org( $slug ): bool {
$url = 'https://api.wordpress.org/plugins/info/1.0/' . $slug . '.json';
$http_args = [
'timeout' => 15,
'sslverify' => false, // Many hosts have no updated CA bundle.
'user-agent' => 'Defender/' . DEFENDER_VERSION,
];
$response = wp_remote_get( $url, $http_args );
if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) {
return false;
}
$results = json_decode( wp_remote_retrieve_body( $response ), true );
if ( ! is_array( $results ) ) {
return false;
}
return true;
}
/**
* Check the resulting plugin slug against WordPress.org plugin rules.
*
* @param string $slug Plugin folder name.
*
* @return bool
*/
public function is_likely_wporg_slug( $slug ): bool {
// Does file readme.txt exist?
$readme_file = $this->get_plugin_base_dir() . $slug . '/readme.txt';
if ( file_exists( $readme_file ) && is_readable( $readme_file ) ) {
$contents = trim( file_get_contents( $readme_file ) );
if ( false !== strpos( $contents, '===' ) ) {
return true;
}
if ( false !== strpos( $contents, '#' ) ) {
return true;
}
}
return false;
}
/**
* @param string $file_path
*
* @return bool
*/
public function is_active_plugin( $file_path ): bool {
$path_data = explode( DIRECTORY_SEPARATOR, plugin_basename( $file_path ) );
if ( ! empty( $path_data ) ) {
$plugin_slug = $path_data[0];
} else {
return false;
}
$active = false;
foreach ( $this->get_plugins() as $slug => $data ) {
if ( $plugin_slug === $slug || 0 === strpos( $slug, $plugin_slug ) ) {
$active = is_multisite() ? is_plugin_active_for_network( $slug ) : is_plugin_active( $slug );
break;
}
}
return $active;
}
}