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use Leadin\utils\QueryParameters;
* Class used to install the Content embed plugin
class ContentEmbedInstaller {
const CONTENT_EMBED_LINK = 'https://api.hubapi.com/content-embed/v1/plugin/download/content-hub-embed.zip';
const INSTALL_ARG = 'contentembed_install';
const INSTALL_OPTION = LEADIN_PREFIX . '_content_embed_ui_install';
* Class constructor, adds the necessary hooks.
public function __construct() {
add_action( 'wp_ajax_content_embed_install', array( $this, 'wp_ajax_install_content_embed' ) );
* AJAX to install Content embed plugin by downloading from URL in Content embed API.
* Modified from: https://github.com/WordPress/wordpress-develop/blob/trunk/src/wp-admin/includes/ajax-actions.php#L4444
public function wp_ajax_install_content_embed() {
$nonce = isset( $_REQUEST['_wpnonce'] ) ? sanitize_text_field( wp_unslash( ( $_REQUEST['_wpnonce'] ) ) ) : '';
if ( ! current_user_can( 'install_plugins' ) || ! wp_verify_nonce( $nonce, self::INSTALL_ARG ) ) {
$status['errorCode'] = 'PERMISSIONS_ERROR';
$status['errorMessage'] = 'User does not have permission to install or activate plugins.';
return wp_send_json_error( $status, 403 );
$active_or_installed = self::is_content_embed_active_installed();
$activated = $active_or_installed['active'];
$installed = $active_or_installed['installed'];
if ( $activated || $installed ) {
$status['errorCode'] = $activated ? 'ALREADY_ACTIVATED' : 'ALREADY_INSTALLED';
$status['errorMessage'] = 'Content embed already installed or activated';
wp_send_json_error( $status );
require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
require_once ABSPATH . 'wp-admin/includes/plugin.php';
$skin = new \WP_Ajax_Upgrader_Skin();
$upgrader = new \Plugin_Upgrader( $skin );
$result = $upgrader->install( self::CONTENT_EMBED_LINK );
if ( is_wp_error( $result ) ) {
$status['errorCode'] = 'GENERIC_ERROR';
$status['errorMessage'] = $result->get_error_message();
wp_send_json_error( $status );
if ( is_wp_error( $skin->result ) ) {
$status['errorCode'] = 'GENERIC_ERROR';
$status['errorMessage'] = $skin->result->get_error_message();
wp_send_json_error( $status );
if ( $skin->get_errors()->has_errors() ) {
$status['errorCode'] = 'GENERIC_ERROR';
$status['errorMessage'] = $skin->get_error_messages();
wp_send_json_error( $status );
if ( is_null( $result ) ) {
$status['errorCode'] = 'FILESYSTEM_ERROR';
$status['errorMessage'] = 'Unable to connect to the filesystem. Please confirm your credentials.';
// Pass through the error from WP_Filesystem if one was raised.
if ( $wp_filesystem instanceof \WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) {
$status['errorMessage'] = esc_html( $wp_filesystem->errors->get_error_message() );
wp_send_json_error( $status );
$plugin_info = $upgrader->plugin_info();
return wp_send_json_error(
'errorCode' => 'INFO_FETCH_ERROR',
'errorMessage' => 'Plugin installation failed, could not retrieve plugin info',
'message' => 'Plugin installed and activated successfully',
'plugin_info' => $plugin_info,
if ( current_user_can( 'activate_plugins' ) ) {
$activation_response = activate_plugin( $plugin_info );
if ( is_wp_error( $activation_response ) ) {
$status['errorCode'] = 'ACTIVATION_ERROR';
$status['errorMessage'] = $activation_response->get_error_message();
$status['activated'] = true;
update_option( self::INSTALL_OPTION, true );
return wp_send_json_success( $status );
* Determine if there is a copy of Content embed installed, and if so, if it is active.
* Checks for path names with junk at the end to handle multiple installs
public static function is_content_embed_active_installed() {
$content_embed_regex = '/hubspot-content-embed((-.*)?)\/content-embed.php/';
if ( ! function_exists( 'get_plugins' ) ) {
require_once ABSPATH . 'wp-admin/includes/plugin.php';
// Filter based on regex in case there are multiple copies installed for some reason.
$all_plugins = array_keys( get_plugins() );
$content_embed_paths = array_filter(
function ( $plugin_path ) use ( $content_embed_regex ) {
return preg_match( $content_embed_regex, $plugin_path );
$installed = ! empty( $content_embed_paths );
function ( $plugin_path ) {
return is_plugin_active( $plugin_path );
'installed' => $installed,