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function wp_ajax_activate_plugin() {
	check_ajax_referer( 'updates' );

	if ( empty( $_POST['name'] ) || empty( $_POST['slug'] ) || empty( $_POST['plugin'] ) ) {
		wp_send_json_error(
			array(
				'slug'         => '',
				'pluginName'   => '',
				'plugin'       => '',
				'errorCode'    => 'no_plugin_specified',
				'errorMessage' => __( 'No plugin specified.' ),
			)
		);
	}

	$status = array(
		'activate'   => 'plugin',
		'slug'       => wp_unslash( $_POST['slug'] ),
		'pluginName' => wp_unslash( $_POST['name'] ),
		'plugin'     => wp_unslash( $_POST['plugin'] ),
	);

	if ( ! current_user_can( 'activate_plugin', $status['plugin'] ) ) {
		$status['errorMessage'] = __( 'Sorry, you are not allowed to activate plugins on this site.' );
		wp_send_json_error( $status );
	}

	if ( is_plugin_active( $status['plugin'] ) ) {
		$status['errorMessage'] = sprintf(
			/* translators: %s: Plugin name. */
			__( '%s is already active.' ),
			$status['pluginName']
		);
	}

	$activated = activate_plugin( $status['plugin'] );

	if ( is_wp_error( $activated ) ) {
		$status['errorMessage'] = $activated->get_error_message();
		wp_send_json_error( $status );
	}

	wp_send_json_success( $status );
}