sandpiper/Actions/Setup.php

<?php

namespace Sandpiper\Actions;

class Setup extends \Sandpiper\AbstractAction
{
	
	public function __construct()
	{
	}
	
	public function handle() {
		global $settings;
		
		$uri_root = dirname("http://" . $_SERVER["HTTP_HOST"] . $_SERVER["SCRIPT_NAME"]);
		
		$toml_response_code = $this->get_response_code("$uri_root/settings.toml");
		
		if($toml_response_code >= 200 && $toml_response_code < 300)
			send_error(503, "Error: The settings file is visible from the web!");
		
		header("content-type: text/plain");
		exit("Your setup looks ok :-)");
	}
	
	protected function get_response_code($url) {
		stream_context_set_default([ 'http' => [ 'method' => 'HEAD' ] ]);
		
		$headers = get_headers($url);
		return intval(explode(" ", $headers[0])[1]);
	}
}