MagiTrickle/group.go

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package main
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import (
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"net"
"time"
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"kvas2-go/models"
"kvas2-go/netfilter-helper"
"github.com/coreos/go-iptables/iptables"
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)
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type Group struct {
*models.Group
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Enabled bool
iptables *iptables.IPTables
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ipset *netfilterHelper.IPSet
ifaceToIPSet *netfilterHelper.IfaceToIPSet
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}
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func (g *Group) HandleIPv4(relatedDomains []string, address net.IP, ttl time.Duration) error {
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for _, domain := range g.Domains {
if !domain.IsEnabled() {
continue
}
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for _, name := range relatedDomains {
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if domain.IsMatch(name) {
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ttlSeconds := uint32(ttl.Seconds())
return g.ipset.Add(address, &ttlSeconds)
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}
}
}
return nil
}
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func (g *Group) Enable() error {
if g.Enabled {
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return nil
}
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defer func() {
if !g.Enabled {
_ = g.Disable()
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}
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}()
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if g.FixProtect {
g.iptables.AppendUnique("filter", "_NDM_SL_FORWARD", "-o", g.Interface, "-m", "state", "--state", "NEW", "-j", "_NDM_SL_PROTECT")
}
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err := g.ipset.Create()
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if err != nil {
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return err
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}
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err = g.ifaceToIPSet.Enable()
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if err != nil {
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return err
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}
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g.Enabled = true
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return nil
}
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func (g *Group) Disable() []error {
var errs []error
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if !g.Enabled {
return nil
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}
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errs2 := g.ifaceToIPSet.Disable()
if errs2 != nil {
errs = append(errs, errs2...)
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}
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err := g.ipset.Destroy()
if err != nil {
errs = append(errs, err)
}
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g.Enabled = false
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return errs
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}