56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
/*
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* Copyright (C) 2020-2022, IrineSistiana
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*
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* This file is part of mosdns.
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*
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* mosdns is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* mosdns is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package qname_matcher
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import (
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"github.com/IrineSistiana/mosdns/v5/pkg/matcher/domain"
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"github.com/IrineSistiana/mosdns/v5/pkg/query_context"
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"github.com/IrineSistiana/mosdns/v5/plugin/executable/sequence"
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"github.com/IrineSistiana/mosdns/v5/plugin/matcher/base_domain"
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"github.com/miekg/dns"
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)
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const PluginType = "cname"
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func init() {
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sequence.MustRegMatchQuickSetup(PluginType, QuickSetup)
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}
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type Args = base_domain.Args
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func QuickSetup(bq sequence.BQ, s string) (sequence.Matcher, error) {
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return base_domain.NewMatcher(bq, base_domain.ParseQuickSetupArgs(s), matchCName)
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}
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func matchCName(qCtx *query_context.Context, m domain.Matcher[struct{}]) (bool, error) {
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r := qCtx.R()
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if r == nil {
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return false, nil
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}
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for _, rr := range r.Answer {
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if cname, ok := rr.(*dns.CNAME); ok {
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if _, ok := m.Match(cname.Target); ok {
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return true, nil
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}
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}
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}
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return false, nil
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}
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