def connect_to_host()

in Linux_scripts/rhui-check/rhui-check.py [0:0]

• 68 lines of code
• 13 McCabe index (conditional complexity)

def connect_to_host(url, selection, mysection):

    try:
        uname = os.uname()
    except:
        logger.critical('Unable to identify OS version.')
        exit(1)    

    try:
        basearch = uname.machine
    except AttributeError:
        basearch = uname[-1]

    try:
        baserelease = uname.release
    except AttributeError:
        baserelease = uname[2]

    if eus:
        fd = open('/etc/yum/vars/releasever')
        releasever = fd.readline().strip()
    else:
        releasever  = re.sub(r'^.*el([0-9][0-9]*).*',r'\1',baserelease)
        if releasever == '7':
            releasever = '7Server'

    url = url+"/repodata/repomd.xml"
    url = url.replace('$releasever',releasever)
    url = url.replace('$basearch',basearch)
    logger.debug('baseurl for repo {} is {}'.format(mysection, url))

    headers = {'content-type': 'application/json'}
    s = requests.Session()
    local_proxy = get_proxies(selection, mysection)

    cert = ()
    try:
        cert=(selection.get(mysection, 'sslclientcert'), selection.get(mysection, 'sslclientkey'))
    except:
        logger.warning('Client certificate and/or client key attribute not found for {}, testing connectivity w/o certificates'.format(mysection))
        cert=()

    try:
        r = s.get(url, cert=cert, headers=headers, timeout=5, proxies=local_proxy)
    except requests.exceptions.Timeout:
        logger.warning('TIMEOUT: Unable to reach RHUI URI {}'.format(url))
        return False
    except requests.exceptions.SSLError:
        validate_ca_certificates()
        logger.warning('PROBLEM: MITM proxy misconfiguration. Proxy cannot intercept certs for {}'.format(url))
        return 1
    except requests.exceptions.ProxyError:
        logger.warning('PROBLEM: Unable to use the proxy gateway when connecting to RHUI server {}'.format(url))
        return False
    except requests.exceptions.ConnectionError as e:
        logger.warning('PROBLEM: Unable to establish connectivity to RHUI server {}'.format(url))
        logger.error('{}'.format(e))
        return False
    except OSError:
        validate_ca_certificates()
        raise()
    except Exception as e:
        logger.warning('PROBLEM: Unknown error, unable to connect to the RHUI server {}'.format(url))
        raise(e)
        return False
    else:
        if r.status_code == 200:
            logger.debug('The RC for this {} link is {}'.format(url, r.status_code))
            return True
        elif r.status_code == 404:
            logger.error("Unable to find the contents for repo {}, make sure to use the correct version lock if you're using EUS repositories".format(mysection))
            logger.error("For more detailed information and valid levels consult: https://access.redhat.com/support/policy/updates/errata#RHEL8_and_9_Life_Cycle")
            return False
        else:
            logger.warning('The RC for this {} link is {}'.format(url, r.status_code))
            return False