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package utils
import (
"encoding/json"
"fmt"
"net"
"net/http"
"strconv"
"strings"
)
type ResolverBehavior struct {
Dnssec bool `json:"dnssec"`
QnameEncode bool `json:"0x20"`
QueryMerge int `json:"merge_dup"`
MaxNsDepth int `json:"max_ns_depth"`
MaxCnameDepth int `json:"max_cname_depth"`
RetryLimit int `json:"retry_limit"`
FetchLimit int `json:"fetch_limit"`
TimeoutStart int64 `json:"timeout_start"`
TimeoutEnd int64 `json:"timeout_end"`
}
func IsValidIP(ip string) bool {
res := net.ParseIP(ip)
return res != nil
}
func IPv4ToInt(ip string) (uint32, error) {
if !IsValidIP(ip) {
return 0, fmt.Errorf("invalid IP address: %s", ip)
}
labels := strings.Split(ip, ".")
var result uint32
for _, label := range labels {
label_val, _ := strconv.Atoi(label)
result = (result << 8) | uint32(label_val)
}
return result, nil
}
func GetResult(addr string, token int) (*ResolverBehavior, error) {
data := new(ResolverBehavior)
url := "http://" + addr + "/results/" + strconv.Itoa(token)
response, err := http.Get(url)
if err != nil {
return data, err
}
defer response.Body.Close()
if response.StatusCode != http.StatusOK {
return data, fmt.Errorf("wrong HTTP status code : %v", response.StatusCode)
}
err = json.NewDecoder(response.Body).Decode(data)
if err != nil {
return data, err
}
return data, nil
}
func OutputJson(data interface{}) (string, error) {
json_byte, err := json.Marshal(data)
if err != nil {
return "", err
}
return string(json_byte), nil
}
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