mirror of
https://github.com/DNSCrypt/dnscrypt-proxy.git
synced 2025-04-06 06:37:36 +03:00
4fd54a4919
We now enforce the fact that a query always include a question. It holds true for all practical use cases of dnscrypt-proxy. This avoids quite a lot of redundant code in plugins, and is faster.
47 lines
1 KiB
Go
47 lines
1 KiB
Go
package main
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import (
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"strings"
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"github.com/miekg/dns"
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)
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type PluginBlockUnqualified struct {
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}
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func (plugin *PluginBlockUnqualified) Name() string {
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return "block_unqualified"
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}
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func (plugin *PluginBlockUnqualified) Description() string {
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return "Block unqualified DNS names"
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}
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func (plugin *PluginBlockUnqualified) Init(proxy *Proxy) error {
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return nil
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}
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func (plugin *PluginBlockUnqualified) Drop() error {
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return nil
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}
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func (plugin *PluginBlockUnqualified) Reload() error {
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return nil
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}
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func (plugin *PluginBlockUnqualified) Eval(pluginsState *PluginsState, msg *dns.Msg) error {
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question := msg.Question[0]
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if question.Qclass != dns.ClassINET || (question.Qtype != dns.TypeA && question.Qtype != dns.TypeAAAA) {
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return nil
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}
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if strings.IndexByte(pluginsState.qName, '.') >= 0 {
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return nil
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}
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synth := EmptyResponseFromMessage(msg)
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synth.Rcode = dns.RcodeNameError
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pluginsState.synthResponse = synth
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pluginsState.action = PluginsActionSynth
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pluginsState.returnCode = PluginsReturnCodeSynth
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return nil
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}
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