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spf.go
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spf.go
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/*
* ZDNS Copyright 2016 Regents of the University of Michigan
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package spf
import (
"github.com/zmap/zdns"
"github.com/zmap/zdns/modules/miekg"
)
// result to be returned by scan of host
type Result struct {
Spf string `json:"spf,omitempty"`
}
// Per Connection Lookup ======================================================
//
type Lookup struct {
Factory *RoutineLookupFactory
zdns.BaseLookup
}
func (s *Lookup) DoLookup(name string) (interface{}, zdns.Status, error) {
var res Result
nameServer := s.Factory.Factory.RandomNameServer()
innerRes, status, err := miekg.DoTxtLookup(s.Factory.Client, s.Factory.TCPClient, nameServer, "v=spf", name)
if status != zdns.STATUS_SUCCESS {
return res, status, err
}
res.Spf = innerRes
return res, zdns.STATUS_SUCCESS, nil
}
// Per GoRoutine Factory ======================================================
//
type RoutineLookupFactory struct {
miekg.RoutineLookupFactory
Factory *GlobalLookupFactory
}
func (s *RoutineLookupFactory) MakeLookup() (zdns.Lookup, error) {
a := Lookup{Factory: s}
return &a, nil
}
// Global Factory =============================================================
//
type GlobalLookupFactory struct {
zdns.BaseGlobalLookupFactory
}
func (s *GlobalLookupFactory) MakeRoutineFactory() (zdns.RoutineLookupFactory, error) {
r := new(RoutineLookupFactory)
r.Initialize(s.GlobalConf.Timeout)
r.Factory = s
return r, nil
}
// Global Registration ========================================================
//
func init() {
s := new(GlobalLookupFactory)
zdns.RegisterLookup("SPF", s)
}