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mirror of https://github.com/DNSCrypt/dnscrypt-proxy.git synced 2024-12-27 00:12:31 +01:00
dnscrypt-proxy/dnscrypt-proxy/plugin_firefox.go
2023-02-11 14:27:12 +01:00

54 lines
1.2 KiB
Go

// Work around Mozilla's evil plan - https://sk.tl/3Ek6tzhq
package main
import (
"strings"
"github.com/jedisct1/dlog"
"github.com/miekg/dns"
)
type PluginFirefox struct{}
func (plugin *PluginFirefox) Name() string {
return "firefox"
}
func (plugin *PluginFirefox) Description() string {
return "Work around Firefox taking over DNS"
}
func (plugin *PluginFirefox) Init(proxy *Proxy) error {
dlog.Noticef("Firefox workaround initialized")
return nil
}
func (plugin *PluginFirefox) Drop() error {
return nil
}
func (plugin *PluginFirefox) Reload() error {
return nil
}
func (plugin *PluginFirefox) Eval(pluginsState *PluginsState, msg *dns.Msg) error {
if pluginsState.clientProto == "local_doh" {
return nil
}
question := msg.Question[0]
if question.Qclass != dns.ClassINET || (question.Qtype != dns.TypeA && question.Qtype != dns.TypeAAAA) {
return nil
}
qName := pluginsState.qName
if qName != "use-application-dns.net" && !strings.HasSuffix(qName, ".use-application-dns.net") {
return nil
}
synth := EmptyResponseFromMessage(msg)
synth.Rcode = dns.RcodeNameError
pluginsState.synthResponse = synth
pluginsState.action = PluginsActionSynth
pluginsState.returnCode = PluginsReturnCodeSynth
return nil
}