/**
* Create the machine list
*
* The machine list is the "dirty" list of machines.
* All the machines that a user specified in the list
* input need to be checked against the list of
* machines that the user is allowed to scan. The
* machine list is the initial list that is created.
* Machines that have been verified are then moved
* to the ok_computers list. Only machines in the
* ok_computers list will be saved to the database
* for use by Nessus later on.
*
* @param array $data Array of list items as would be
* generated by the list_entries_to_array function
* @return array Machine list that can be used later
* in processing as a starting point for what
* needs to be verified.
* @see list_entries_to_array
*/
function list_items_to_machine_list($data)
{
$_net = Netmask::getInstance();
$machine_list = array();
foreach ($data as $key => $val) {
$val = trim($val);
$tmp = array();
$cidrs = array();
if (is_ip($val)) {
$machine_list[] = $val;
} else {
if (is_cidr($val)) {
$machine_list[] = $val;
} else {
if (is_range($val)) {
$cidrs = $_net->split_cidrs($val);
$machine_list = array_merge($machine_list, $cidrs);
} else {
if (is_short_range($val)) {
$cidrs = $_net->split_cidrs($val);
$machine_list = array_merge($machine_list, $cidrs);
} else {
if (is_vhost($val)) {
$machine_list[] = $val;
} else {
$machine_list[] = strtoupper($val);
}
}
}
}
}
}
// Filter out empty array elements if there are any
$machine_list = array_filter($machine_list, "strip_empty");
return $machine_list;
}
/**
* I need to check for cidrs and ranges here because otherwise the
* total number of targets could be really small.
*
* example:
*
* the target 111.222.111.0/24 is 1 target to nessquik
* but to Nessus it is 255-2 targets. The progress will
* involves 253 targets but the total would only be calculated
* off of 1 target. This same problem occurs with ranges.
*/
if (is_cidr($val)) {
$_nm->init($val);
$targets += $_nm->hosts_per_subnet();
} else {
if (is_range($val)) {
$tmp = explode('-', $val);
$start_ip = $tmp[0];
$end_ip = $tmp[1];
$cidrs = $_nm->range2cidrlist($start_ip, $end_ip);
foreach ($cidrs as $key => $val) {
$_nm->init($val);
$targets += $_nm->hosts_per_subnet();
}
} else {
// Better be an IP address
$targets += 1;
}
}
}
$max_progress = $targets * 100;