void urlcheck() {
	struct databuffer thisdb;
	struct databuffer thisdb2;

	// Block tries to read documents outside the document root
	thisdb = auto_db("..");
	if (db_contains(&url, &thisdb)) {
		thisdb = auto_db("/");
		db_set(&url, &thisdb);
		db_set(&file, &FILES);
	}

	// Avoid a bug
	if (file_isdir(db_raw(&file))) {
		thisdb = auto_db("/");
		if (!db_endswith(&url, &thisdb)) {
			thisdb2 = auto_db("HTTP/1.0 302 Moved permanently\nLocation: ");
			db_set(&status, &thisdb2);
			//db_append(&status, &WEBSITE);
			db_append(&status, &url);
			db_append(&status, &thisdb);
			thisdb = auto_db("text/html");
			db_set(&contenttype, &thisdb);
			httpheaders();
			done = true;
		}
	}

	// Find index.html
	db_set(&thisdb, &file);
	thisdb2 = auto_db("index.html");
	db_append(&thisdb, &thisdb2);
	if (file_isregfile(thisdb.data)) {
		db_append(&url, &thisdb2);
		db_append(&file, &thisdb2);
	}

	// Find index.php
	db_set(&thisdb, &file);
	thisdb2 = auto_db("index.php");
	db_append(&thisdb, &thisdb2);
	if (file_isregfile(thisdb.data)) {
		db_append(&url, &thisdb2);
		db_append(&file, &thisdb2);
	}

	// Respond 404 if the file doesn't exist
	if (!file_exists(db_raw(&file))) {
		thisdb = auto_db("HTTP/1.0 404 Not Found");
		db_set(&status, &thisdb);
		thisdb = auto_db("text/html");
		db_set(&contenttype, &thisdb);
		db_set(&file, &FILES);
		db_append(&file, &ERROR404);
	}

	// Respond 403 if the file isn't readable
	if (!file_accessible(db_raw(&file), R_OK)) {
		thisdb = auto_db("HTTP/1.0 403 Forbidden");
		db_set(&status, &thisdb);
		thisdb = auto_db("text/html");
		db_set(&contenttype, &thisdb);
		db_set(&file, &FILES);
		db_append(&file, &ERROR403);
	}
}