dae/component/dns/function_parser.go
2023-03-14 15:01:55 +08:00

48 lines
1.4 KiB
Go

/*
* SPDX-License-Identifier: AGPL-3.0-only
* Copyright (c) 2023, daeuniverse Organization <dae@v2raya.org>
*/
package dns
import (
"fmt"
"github.com/sirupsen/logrus"
"github.com/daeuniverse/dae/component/routing"
"github.com/daeuniverse/dae/pkg/config_parser"
"golang.org/x/net/dns/dnsmessage"
"strings"
)
var typeNames = map[string]dnsmessage.Type{
"A": dnsmessage.TypeA,
"NS": dnsmessage.TypeNS,
"CNAME": dnsmessage.TypeCNAME,
"SOA": dnsmessage.TypeSOA,
"PTR": dnsmessage.TypePTR,
"MX": dnsmessage.TypeMX,
"TXT": dnsmessage.TypeTXT,
"AAAA": dnsmessage.TypeAAAA,
"SRV": dnsmessage.TypeSRV,
"OPT": dnsmessage.TypeOPT,
"WKS": dnsmessage.TypeWKS,
"HINFO": dnsmessage.TypeHINFO,
"MINFO": dnsmessage.TypeMINFO,
"AXFR": dnsmessage.TypeAXFR,
"ALL": dnsmessage.TypeALL,
}
func TypeParserFactory(callback func(f *config_parser.Function, types []dnsmessage.Type, overrideOutbound *routing.Outbound) (err error)) routing.FunctionParser {
return func(log *logrus.Logger, f *config_parser.Function, key string, paramValueGroup []string, overrideOutbound *routing.Outbound) (err error) {
var types []dnsmessage.Type
for _, v := range paramValueGroup {
t, ok := typeNames[strings.ToUpper(v)]
if !ok {
return fmt.Errorf("unknown DNS request type: %v", v)
}
types = append(types, t)
}
return callback(f, types, overrideOutbound)
}
}