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5 months ago
package main
import (
_ "embed"
"flag"
"fmt"
"log"
"net"
"strconv"
"strings"
"time"
"io/ioutil"
"net/http"
"net/url"
"encoding/json"
"github.com/aeden/traceroute"
"github.com/oschwald/maxminddb-golang"
)
func remove(slice []string, s int) []string {
if s < len(slice) {
return append(slice[:s], slice[s+1:]...)
}
return slice
}
type record struct {
ASN int `maxminddb:"autonomous_system_number"`
ASO string `maxminddb:"autonomous_system_organization"`
}
type IPDetail struct {
Country string `json:"country"`
Province string `json:"province"`
City string `json:"city"`
ISP string `json:"isp"`
}
type APIResponse struct {
Code int `json:"code"`
Detail IPDetail `json:"data"`
}
//go:embed `GeoLite2-ASN.mmdb`
var buffer []byte
func parseIPFromMap42(ip net.IP) (record, APIResponse, error) {
params := url.Values{}
URL, err := url.Parse("http://ipip.map.dn42/whois")
if err != nil {
return record{}, APIResponse{}, err
}
params.Set("ip", ip.String())
params.Set("lang", "cn")
URL.RawQuery = params.Encode()
resp, err := http.Get(URL.String())
if err != nil {
return record{}, APIResponse{}, err
}
defer resp.Body.Close()
body, _ := ioutil.ReadAll(resp.Body)
var res struct {
ASN string `json:"as"`
Area string `json:"area"`
}
_ = json.Unmarshal(body, &res)
ASN, err := strconv.Atoi(strings.Replace(res.ASN, "AS", "", -1))
if err != nil {
return record{}, APIResponse{}, err
}
record := record{
ASN: ASN,
}
APIResponse := APIResponse{
Code: 0,
Detail: IPDetail{
ISP: strings.Join(remove(remove(strings.Split(res.Area, "\t"), 6), 5), " "),
},
}
return record, APIResponse, nil
}
func parseIPFromMaxminddb(ip net.IP) record {
db, err := maxminddb.FromBytes(buffer)
if err != nil {
log.Fatal(err)
}
defer db.Close()
var record record
err = db.Lookup(ip, &record)
if err != nil {
log.Fatal(err)
}
return record
}
func parseIPFromBilibiliAPI(ip net.IP) APIResponse {
params := url.Values{}
URL, err := url.Parse("https://api.live.bilibili.com/client/v1/Ip/getInfoNew")
if err != nil {
log.Fatal(err)
}
params.Set("ip", ip.String())
URL.RawQuery = params.Encode()
resp, err := http.Get(URL.String())
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
body, _ := ioutil.ReadAll(resp.Body)
var res APIResponse
_ = json.Unmarshal(body, &res)
return res
}
func printHop(hop traceroute.TracerouteHop) {
addr := address(hop.Address)
ip := net.ParseIP(addr)
var info record
var APIResponse APIResponse
var err error
if _, Prefix, _ := net.ParseCIDR("172.16.0.0/12"); Prefix.Contains(ip) {
info, APIResponse, err = parseIPFromMap42(ip)
if err != nil {
log.Fatal(err)
}
} else {
info = parseIPFromMaxminddb(ip)
APIResponse = parseIPFromBilibiliAPI(ip)
}
hostOrAddr := addr
if hop.Host != "" {
hostOrAddr = hop.Host
}
var ASN string
if hop.Success {
if info.ASN == 0 {
ASN = "unknown"
} else {
ASN = fmt.Sprintf("AS%v", info.ASN)
}
if APIResponse.Code != 0 {
fmt.Printf("%-3d %8v %15v (%v) %8v\n", hop.TTL, ASN, hostOrAddr, addr, hop.ElapsedTime.Round(time.Microsecond))
} else {
fmt.Printf("%-3d %8v %15v (%v) %8v ", hop.TTL, ASN, hostOrAddr, addr, hop.ElapsedTime.Round(time.Microsecond))
var flag bool = false
if APIResponse.Detail.Country != "" {
flag = true
fmt.Printf(APIResponse.Detail.Country)
}
if APIResponse.Detail.Province != "" {
if flag {
fmt.Printf(", ")
}
fmt.Print(APIResponse.Detail.Province)
flag = true
}
if APIResponse.Detail.City != "" {
if flag {
fmt.Printf(", ")
}
fmt.Print(APIResponse.Detail.City)
flag = true
}
if APIResponse.Detail.ISP != "" {
if flag {
fmt.Print(" ")
}
fmt.Print(APIResponse.Detail.ISP)
flag = true
}
fmt.Printf("\n")
}
} else {
fmt.Printf("%-3d *\n", hop.TTL)
}
}
func address(address [4]byte) string {
return fmt.Sprintf("%v.%v.%v.%v", address[0], address[1], address[2], address[3])
}
func main() {
var m = flag.Int("m", traceroute.DEFAULT_MAX_HOPS, `Set the max time-to-live (max number of hops) used in outgoing probe packets (default is 64)`)
var f = flag.Int("f", traceroute.DEFAULT_FIRST_HOP, `Set the first used time-to-live, e.g. the first hop (default is 1)`)
var q = flag.Int("q", 1, `Set the number of probes per "ttl" to nqueries (default is one probe).`)
flag.Parse()
host := flag.Arg(0)
options := traceroute.TracerouteOptions{}
options.SetRetries(*q - 1)
options.SetMaxHops(*m)
options.SetFirstHop(*f)
ipAddr, err := net.ResolveIPAddr("ip", host)
if err != nil {
return
}
fmt.Printf("traceroute to %v (%v), %v hops max, %v byte packets, using ICMP methods.\n", host, ipAddr, options.MaxHops(), options.PacketSize())
c := make(chan traceroute.TracerouteHop, 0)
go func() {
for {
hop, ok := <-c
if !ok {
fmt.Println()
return
}
printHop(hop)
}
}()
res, err := traceroute.Traceroute(ipAddr.String(), &options, c)
if err != nil {
fmt.Printf("Error: %v", err)
}
printHop(res.Hops[len(res.Hops)-1])
}