90 lines
2.4 KiB
Go
90 lines
2.4 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 hosts
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import (
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"bytes"
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"context"
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"fmt"
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"github.com/IrineSistiana/mosdns/v5/coremain"
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"github.com/IrineSistiana/mosdns/v5/pkg/hosts"
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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/miekg/dns"
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"os"
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)
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const PluginType = "hosts"
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func init() {
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coremain.RegNewPluginFunc(PluginType, Init, func() any { return new(Args) })
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}
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var _ sequence.Executable = (*Hosts)(nil)
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type Args struct {
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Entries []string `yaml:"entries"`
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Files []string `yaml:"files"`
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}
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type Hosts struct {
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h *hosts.Hosts
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}
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func Init(_ *coremain.BP, args any) (any, error) {
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return NewHosts(args.(*Args))
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}
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func NewHosts(args *Args) (*Hosts, error) {
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m := domain.NewMixMatcher[*hosts.IPs]()
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m.SetDefaultMatcher(domain.MatcherFull)
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for i, entry := range args.Entries {
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if err := domain.Load[*hosts.IPs](m, entry, hosts.ParseIPs); err != nil {
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return nil, fmt.Errorf("failed to load entry #%d %s, %w", i, entry, err)
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}
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}
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for i, file := range args.Files {
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b, err := os.ReadFile(file)
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if err != nil {
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return nil, fmt.Errorf("failed to read file #%d %s, %w", i, file, err)
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}
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if err := domain.LoadFromTextReader[*hosts.IPs](m, bytes.NewReader(b), hosts.ParseIPs); err != nil {
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return nil, fmt.Errorf("failed to load file #%d %s, %w", i, file, err)
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}
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}
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return &Hosts{
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h: hosts.NewHosts(m),
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}, nil
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}
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func (h *Hosts) Response(q *dns.Msg) *dns.Msg {
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return h.h.LookupMsg(q)
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}
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func (h *Hosts) Exec(_ context.Context, qCtx *query_context.Context) error {
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r := h.h.LookupMsg(qCtx.Q())
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if r != nil {
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qCtx.SetResponse(r)
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}
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return nil
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}
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