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set_data.go
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set_data.go
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package set
import (
"fmt"
"net"
"net/netip"
"strconv"
"strings"
"time"
)
// SetData is a struct that is used to create elements of a given set based on the key type of the set
type SetData struct {
Port uint16
PortRangeStart uint16
PortRangeEnd uint16
Address netip.Addr
AddressRangeStart netip.Addr
AddressRangeEnd netip.Addr
Prefix netip.Prefix
Timeout time.Duration
}
// Convert a string address to the SetData type
func AddressStringToSetData(addressString string, timeout ...time.Duration) (SetData, error) {
address, err := netip.ParseAddr(addressString)
if err != nil {
return SetData{}, err
}
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Address: address, Timeout: t}, nil
}
// Convert a string prefix/CIDR to the SetData type
func PrefixStringToSetData(prefixString string, timeout ...time.Duration) (SetData, error) {
prefix, err := netip.ParsePrefix(prefixString)
if err != nil {
return SetData{}, err
}
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Prefix: prefix, Timeout: t}, nil
}
// Convert a string address range to the SetData type
func AddressRangeStringToSetData(startString string, endString string, timeout ...time.Duration) (SetData, error) {
start, err := netip.ParseAddr(startString)
if err != nil {
return SetData{}, err
}
end, err := netip.ParseAddr(endString)
if err != nil {
return SetData{}, err
}
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{
AddressRangeStart: start,
AddressRangeEnd: end,
Timeout: t,
}, nil
}
// Convert a list of string addresses to the SetData type
func AddressStringsToSetData(addressStrings []string, timeout ...time.Duration) ([]SetData, error) {
data := []SetData{}
for _, addressString := range addressStrings {
if strings.Contains(addressString, "/") {
// if it includes / we assume prefix i.e. 4.4.4.4/32
prefix, err := PrefixStringToSetData(addressString, timeout...)
if err != nil {
return data, err
}
data = append(data, prefix)
continue
}
if strings.Contains(addressString, "-") {
// if it includes - we assume a range i.e. 10.10.10.10-10.10.10.15
split := strings.Split(addressString, "-")
addressRange, err := AddressRangeStringToSetData(split[0], split[1], timeout...)
if err != nil {
return data, err
}
data = append(data, addressRange)
continue
}
// if we get here assume its just a normal IP i.e. 1.1.1.1
address, err := AddressStringToSetData(addressString, timeout...)
if err != nil {
return data, err
}
data = append(data, address)
}
return data, nil
}
// Convert a string port to the SetData type
func PortStringToSetData(portString string, timeout ...time.Duration) (SetData, error) {
port, err := strconv.ParseUint(portString, 10, 16)
if err != nil {
return SetData{}, err
}
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Port: uint16(port), Timeout: t}, nil
}
// Convert a string port range to the SetData type
func PortRangeStringToSetData(startString string, endString string, timeout ...time.Duration) (SetData, error) {
start, err := strconv.ParseUint(startString, 10, 16)
if err != nil {
return SetData{}, err
}
end, err := strconv.ParseUint(endString, 10, 16)
if err != nil {
return SetData{}, err
}
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{
PortRangeStart: uint16(start),
PortRangeEnd: uint16(end),
Timeout: t,
}, nil
}
// Convert a list string ports to the SetData type
func PortStringsToSetData(portStrings []string, timeout ...time.Duration) ([]SetData, error) {
data := []SetData{}
for _, portString := range portStrings {
if strings.Contains(portString, "-") {
// if it includes - we assume a range i.e. 10000-30000
split := strings.Split(portString, "-")
portRange, err := PortRangeStringToSetData(split[0], split[1], timeout...)
if err != nil {
return data, err
}
data = append(data, portRange)
} else {
// assume its just a normal port i.e. 80
port, err := PortStringToSetData(portString, timeout...)
if err != nil {
return data, err
}
data = append(data, port)
}
}
return data, nil
}
// Convert net.IPNet to the SetData type
func NetIPNetToSetData(net *net.IPNet, timeout ...time.Duration) (SetData, error) {
ones, _ := net.Mask.Size()
ip, ok := netip.AddrFromSlice(net.IP)
if !ok {
return SetData{}, fmt.Errorf("could not parse %v", net.String())
}
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Prefix: netip.PrefixFrom(ip, ones), Timeout: t}, nil
}
// Convert a list of net.IPNet to the SetData type
func NetIPNetsToSetData(nets []*net.IPNet, timeout ...time.Duration) ([]SetData, error) {
data := []SetData{}
for _, net := range nets {
prefix, err := NetIPNetToSetData(net, timeout...)
if err != nil {
return data, err
}
data = append(data, prefix)
}
return data, nil
}
// Convert net.IP to the SetData type
func NetIPToSetData(ip net.IP, timeout ...time.Duration) (SetData, error) {
netip, ok := netip.AddrFromSlice(ip)
if !ok {
return SetData{}, fmt.Errorf("could not parse ip: %v", ip)
}
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Address: netip, Timeout: t}, nil
}
// Convert a list of net.IP to the SetData type
func NetIPsToSetData(ips []net.IP, timeout ...time.Duration) ([]SetData, error) {
data := []SetData{}
for _, ip := range ips {
netip, err := NetIPToSetData(ip, timeout...)
if err != nil {
return data, err
}
data = append(data, netip)
}
return data, nil
}
// Convert a list of netip.Addr to SetData type
func NetipAddrsToSetData(ips []netip.Addr, timeout ...time.Duration) ([]SetData, error) {
data := []SetData{}
for _, ip := range ips {
netip, err := NetipAddrToSetData(ip, timeout...)
if err != nil {
return data, err
}
data = append(data, netip)
}
return data, nil
}
// Convert netip.Addr to SetData type
func NetipAddrToSetData(ip netip.Addr, timeout ...time.Duration) (SetData, error) {
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Address: ip, Timeout: t}, nil
}
// Convert a list of netip.Prefix to SetData type
func NetipPrefixesToSetData(prefixes []netip.Prefix, timeout ...time.Duration) ([]SetData, error) {
data := []SetData{}
for _, prefix := range prefixes {
netip, err := NetipPrefixToSetData(prefix, timeout...)
if err != nil {
return data, err
}
data = append(data, netip)
}
return data, nil
}
// Convert netip.Prefix to SetData type
func NetipPrefixToSetData(prefix netip.Prefix, timeout ...time.Duration) (SetData, error) {
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Prefix: prefix, Timeout: t}, nil
}
// Convert a list of netip.AddrPort to SetData type, returns a list of addresses and a list of ports
func NetipAddrPortsToSetData(addrports []netip.AddrPort, timeout ...time.Duration) ([]SetData, []SetData, error) {
addrs := []SetData{}
ports := []SetData{}
for _, addrport := range addrports {
addr, port, err := NetipAddrPortToSetData(addrport, timeout...)
if err != nil {
return addrs, ports, err
}
addrs = append(addrs, addr)
ports = append(ports, port)
}
return addrs, ports, nil
}
// Convert netip.AddrPort to SetData type, returns a address and a port
func NetipAddrPortToSetData(addrport netip.AddrPort, timeout ...time.Duration) (SetData, SetData, error) {
var t time.Duration
if len(timeout) > 0 {
t = timeout[0]
}
return SetData{Address: addrport.Addr()}, SetData{Port: uint16(addrport.Port()), Timeout: t}, nil
}