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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def validate_host(cert, name):
 """ Validates host name against certificate @param cert: Certificate returned by host @param name: Actual host name used for connection @return: Returns true if host name matches certificate """

    cn = None
    for t, v in cert.get_subject().get_components():
        if t == b'CN':
            cn = v
            break

    if cn == name:
        return True

    # checking SAN
    s_name = name.decode('ascii')
    for i in range(cert.get_extension_count()):
        ext = cert.get_extension(i)
        if ext.get_short_name() == b'subjectAltName':
            s = str(ext)
            # SANs are usually have form like: DNS:hostname
            if s.startswith('DNS:') and s[4:] == s_name:
                return True

    # TODO handle wildcards
    return False