69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
package prober
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import (
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"dtool/utils"
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_ "fmt"
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"strconv"
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"strings"
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"time"
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"github.com/miekg/dns"
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)
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const query_num = 20
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type CacheStruct struct {
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target string
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dict map[int]map[string]bool
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}
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func RecursiveCacheProbe(ip string, sld string) CacheStruct {
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data := CacheStruct{ip, make(map[int]map[string]bool)}
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stop := 0
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time_now := strconv.FormatInt(time.Now().Unix(), 10)
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for i := 0; i < query_num; i++ {
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if stop >= 3 {
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break
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}
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subdomain := strings.Join([]string{strings.Replace(ip, ".", "-", -1), "fwd", strconv.Itoa(i), time_now}, "-")
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domain := dns.Fqdn(subdomain + "." + sld)
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res, err := utils.SendAQuery(ip, domain)
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if err != nil {
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//fmt.Printf("Error sending query: %s\n", err)
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stop += 1
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continue
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}
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cache_id, rdns, err := utils.ParseCNAMEChain(res)
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if err != nil {
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//fmt.Printf("Error parsing response: %s\n", err)
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stop += 1
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continue
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}
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if data.dict[cache_id] == nil {
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data.dict[cache_id] = make(map[string]bool)
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}
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data.dict[cache_id][rdns] = true
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stop = 0
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}
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return data
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}
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func RecursiveCacheTest(ip string, num int) {
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res := make(map[string]map[int][]string)
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temp := make(map[int][]string)
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data := RecursiveCacheProbe(ip, "echodns.xyz")
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if len(data.dict) > 0 {
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for cache_id := range data.dict {
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for rdns := range data.dict[cache_id] {
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temp[cache_id] = append(temp[cache_id], rdns)
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}
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}
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}
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res[ip] = temp
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utils.OutputJSON(res, "-", " ")
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}
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func ClientCacheProbe(ip string) {
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}
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