fix Request exception

from time import sleep

from bs4 import BeautifulSoup

from requests.exceptions import HTTPError

from requests.exceptions import ConnectionError

from requests.exceptions import BaseHTTPError

from requests.exceptions import RequestException

from requests.exceptions import RetryError

os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))

        elif test.status_code == 302:

            return test.headers['Location']

        else:

            raise HTTPError("Invalid status code {code}".format(code=test.status_code))

            raise BaseHTTPError("Invalid status code {code}".format(code=test.status_code))

def main():

    logger.info('Program started.')

                elif success:

                    logger.info('Login successful')

                    return

        except ConnectionError as err:

            logger.warn('Connection FAILED.')

        except RequestException as err:

            logger.warn('Network FAILED.')

        # If keep trying to login too many times, it may trigger security alarm on the CAS server

        times_retry_login -= 1

        while True:

            main()

            sleep(config['interval_check_network'])

    except HTTPError as err:

    except BaseHTTPError as err:

        logger.error('{msg}, consider updating \'captive_portal_server\''.format(msg=str(err)))

    except RetryError:

        sys.exit(-1)