bool is_ticket_ready_for_renewal()

in auth/kerberos/src/krb.cpp [356:420]

• 44 lines of code
• 6 McCabe index (conditional complexity)

bool is_ticket_ready_for_renewal( krb_ticket_info_t* krb_ticket_info, CF_logger& cf_logger )
{
    std::string cmd = "export KRB5CCNAME=" + krb_ticket_info->krb_file_path + " &&  klist";
    std::pair<int, std::string> krb_ticket_info_result = Util::exec_shell_cmd( cmd );
    if ( krb_ticket_info_result.first != 0 )
    {
        // we need to check if meta file exists to recreate the ticket
        std::cerr << Util::getCurrentTime() << '\t' << "ERROR: klist failed for command " << cmd
                  << std::endl;
        return false;
    }

    std::vector<std::string> results;

    results = Util::split_string( krb_ticket_info_result.second, '#' );
    std::string renew_until = "renew until";
    bool is_ready_for_renewal = false;

    for ( auto& result : results )
    {
        auto found = result.find( renew_until );
        if ( found != std::string::npos )
        {
            std::string renewal_date_time;

            renewal_date_time = get_ticket_expiration( result, cf_logger );

            char renewal_date[80];
            char renewal_time[80];

            sscanf( renewal_date_time.c_str(), "%79s %79s", renewal_date, renewal_time );

            renew_until = std::string( renewal_date ) + " " + std::string( renewal_time );
            // trim extra spaces
            Util::ltrim( renew_until );
            Util::rtrim( renew_until );

            // next renewal time for the ticket
            struct tm tm;

            // if the string is not date time format, return false
            if ( strptime( renew_until.c_str(), "%m/%d/%Y %T", &tm ) == NULL )
                return false;

            std::time_t next_renewal_time = mktime( &tm );

            // get the current system time
            std::time_t t = std::time( NULL );
            std::tm* now = std::localtime( &t );
            std::time_t current_time = mktime( now );

            // calculate the time difference in hours
            double hours = std::difftime( next_renewal_time, current_time ) / SECONDS_IN_HOUR;

            // check of the ticket need to be renewed
            if ( hours <= RENEW_TICKET_HOURS )
            {
                is_ready_for_renewal = true;
            }
            break;
        }
    }

    return is_ready_for_renewal;
}