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blacklist.go
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blacklist.go
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package blacklist
import (
"fmt"
"net"
"strings"
)
type ipSources struct {
Ip net.IP
Sources []*source
}
func (ss *ipSources) AddSource(s *source) {
for _, v := range ss.Sources {
if s.Name == v.Name {
return
}
}
ss.Sources = append(ss.Sources, s)
}
type netSources struct {
Net net.IPNet
Sources []*source
}
func (ss *netSources) AddSource(s *source) {
for _, v := range ss.Sources {
if s.Name == v.Name {
return
}
}
ss.Sources = append(ss.Sources, s)
}
func newBlacklist() *blacklist {
return &blacklist{
Ips: map[string]*ipSources{},
Nets: map[string]*netSources{},
}
}
type blacklist struct {
Ips map[string]*ipSources
Nets map[string]*netSources
}
func (l *blacklist) AddIp(ip net.IP, s *source) error {
_, ok := l.Ips[ip.String()]
if !ok {
l.Ips[ip.String()] = &ipSources{
Ip: ip,
Sources: []*source{},
}
l.Ips[ip.String()].AddSource(s)
} else {
l.Ips[ip.String()].AddSource(s)
}
return nil
}
func (l *blacklist) AddNet(network net.IPNet, s *source) error {
_, ok := l.Nets[network.String()]
if !ok {
l.Nets[network.String()] = &netSources{
Net: network,
Sources: []*source{},
}
l.Nets[network.String()].AddSource(s)
} else {
l.Nets[network.String()].AddSource(s)
}
return nil
}
func (l *blacklist) Find(ip net.IP) []*source {
ipSrc, ok := l.Ips[ip.String()]
if ok {
return ipSrc.Sources
}
for _, v := range l.Nets {
if v.Net.Contains(ip) {
return v.Sources
}
}
return []*source{}
}
func (l *blacklist) List() []string {
res := []string{}
for _, v := range l.Ips {
sourcesNames := []string{}
for _, s := range v.Sources {
sourcesNames = append(sourcesNames, s.Name)
}
res = append(res, fmt.Sprintf("%s:%s", strings.Join(sourcesNames, ", "), v.Ip.String()))
}
for _, v := range l.Nets {
sourcesNames := []string{}
for _, s := range v.Sources {
sourcesNames = append(sourcesNames, s.Name)
}
res = append(res, fmt.Sprintf("%s:%s", strings.Join(sourcesNames, ", "), v.Net.String()))
}
return res
}