90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
package main
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import (
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"fmt"
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"log"
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"net"
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"github.com/AdguardTeam/AdGuardHome/dnsfilter"
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"github.com/AdguardTeam/AdGuardHome/dnsforward"
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"github.com/joomcode/errorx"
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)
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var dnsServer = dnsforward.Server{}
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func isRunning() bool {
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return dnsServer.IsRunning()
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}
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func generateServerConfig() dnsforward.ServerConfig {
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filters := []dnsfilter.Filter{}
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userFilter := userFilter()
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filters = append(filters, dnsfilter.Filter{
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ID: userFilter.ID,
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Rules: userFilter.Rules,
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})
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for _, filter := range config.Filters {
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filters = append(filters, dnsfilter.Filter{
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ID: filter.ID,
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Rules: filter.Rules,
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})
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}
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newconfig := dnsforward.ServerConfig{
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UDPListenAddr: &net.UDPAddr{Port: config.DNS.Port},
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FilteringConfig: config.DNS.FilteringConfig,
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Filters: filters,
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}
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for _, u := range config.DNS.UpstreamDNS {
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upstream, err := dnsforward.AddressToUpstream(u, config.DNS.BootstrapDNS)
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if err != nil {
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log.Printf("Couldn't get upstream: %s", err)
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// continue, just ignore the upstream
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continue
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}
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newconfig.Upstreams = append(newconfig.Upstreams, upstream)
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}
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return newconfig
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}
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func startDNSServer() error {
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if isRunning() {
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return fmt.Errorf("Unable to start forwarding DNS server: Already running")
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}
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newconfig := generateServerConfig()
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err := dnsServer.Start(&newconfig)
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if err != nil {
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return errorx.Decorate(err, "Couldn't start forwarding DNS server")
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}
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return nil
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}
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func reconfigureDNSServer() error {
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if !isRunning() {
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return fmt.Errorf("Refusing to reconfigure forwarding DNS server: not running")
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}
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err := dnsServer.Reconfigure(generateServerConfig())
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if err != nil {
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return errorx.Decorate(err, "Couldn't start forwarding DNS server")
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}
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return nil
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}
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func stopDNSServer() error {
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if !isRunning() {
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return fmt.Errorf("Refusing to stop forwarding DNS server: not running")
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}
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err := dnsServer.Stop()
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if err != nil {
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return errorx.Decorate(err, "Couldn't stop forwarding DNS server")
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}
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return nil
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}
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