import csv
import io
import urllib.request
import urllib.parse

def runsql(sql: str) -> csv.DictReader:
    sql_escaped = urllib.parse.urlencode({'sql': sql})
    URL = 'https://driver-observer.thi.de/retrieve_arbitrary_sql.php'

    req = urllib.request.Request('{}?{}'.format(URL, sql_escaped))
    req.add_header('Auth', 'Qnb7jfeGZM')

    with urllib.request.urlopen(req) as res:
        return csv.DictReader(io.StringIO(res.read().decode('utf-8'), newline=''))