mirror of
https://github.com/nxtrace/NTrace-core.git
synced 2025-08-12 06:26:39 +00:00
278 lines
9.1 KiB
Go
278 lines
9.1 KiB
Go
package cmd
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import (
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"encoding/json"
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"fmt"
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"log"
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"net"
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"os"
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"os/signal"
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"runtime"
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"strings"
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"time"
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"github.com/akamensky/argparse"
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"github.com/syndtr/gocapability/capability"
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"github.com/xgadget-lab/nexttrace/config"
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fastTrace "github.com/xgadget-lab/nexttrace/fast_trace"
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"github.com/xgadget-lab/nexttrace/ipgeo"
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"github.com/xgadget-lab/nexttrace/printer"
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"github.com/xgadget-lab/nexttrace/reporter"
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"github.com/xgadget-lab/nexttrace/trace"
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"github.com/xgadget-lab/nexttrace/tracelog"
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"github.com/xgadget-lab/nexttrace/tracemap"
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"github.com/xgadget-lab/nexttrace/util"
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"github.com/xgadget-lab/nexttrace/wshandle"
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)
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func Excute() {
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parser := argparse.NewParser("nexttrace", "An open source visual route tracking CLI tool")
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// Create string flag
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tcp := parser.Flag("T", "tcp", &argparse.Options{Help: "Use TCP SYN for tracerouting (default port is 80)"})
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udp := parser.Flag("U", "udp", &argparse.Options{Help: "Use UDP SYN for tracerouting (default port is 53)"})
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fast_trace := parser.Flag("F", "fast-trace", &argparse.Options{Help: "One-Key Fast Trace to China ISPs"})
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port := parser.Int("p", "port", &argparse.Options{Help: "Set the destination port to use. It is either initial udp port value for \"default\"" +
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"method (incremented by each probe, default is 33434), or initial seq for \"icmp\" (incremented as well, default from 1), or some constant" +
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"destination port for other methods (with default of 80 for \"tcp\", 53 for \"udp\", etc.)"})
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numMeasurements := parser.Int("q", "queries", &argparse.Options{Default: 3, Help: "Set the number of probes per each hop"})
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parallelRequests := parser.Int("", "parallel-requests", &argparse.Options{Default: 18, Help: "Set ParallelRequests number. It should be 1 when there is a multi-routing"})
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maxHops := parser.Int("m", "max-hops", &argparse.Options{Default: 30, Help: "Set the max number of hops (max TTL to be reached)"})
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dataOrigin := parser.Selector("d", "data-provider", []string{"IP.SB", "IPInfo", "IPInsight", "IPAPI.com"}, &argparse.Options{Default: "LeoMoeAPI",
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Help: "Choose IP Geograph Data Provider [LeoMoeAPI,IP.SB, IPInfo, IPInsight, IPAPI.com]"})
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noRdns := parser.Flag("n", "no-rdns", &argparse.Options{Help: "Do not resolve IP addresses to their domain names"})
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alwaysRdns := parser.Flag("a", "always-rdns", &argparse.Options{Help: "Always resolve IP addresses to their domain names"})
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routePath := parser.Flag("P", "route-path", &argparse.Options{Help: "Print traceroute hop path by ASN and location"})
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report := parser.Flag("r", "report", &argparse.Options{Help: "output using report mode"})
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dn42 := parser.Flag("", "dn42", &argparse.Options{Help: "DN42 Mode"})
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output := parser.Flag("o", "output", &argparse.Options{Help: "Write trace result to file (RealTimePrinter ONLY)"})
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tablePrint := parser.Flag("t", "table", &argparse.Options{Help: "Output trace results as table"})
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classicPrint := parser.Flag("c", "classic", &argparse.Options{Help: "Classic Output trace results like BestTrace"})
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beginHop := parser.Int("f", "first", &argparse.Options{Default: 1, Help: "Start from the first_ttl hop (instead from 1)"})
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maptrace := parser.Flag("M", "map", &argparse.Options{Help: "Disable Print Trace Map"})
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ver := parser.Flag("v", "version", &argparse.Options{Help: "Print version info and exit"})
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src_addr := parser.String("s", "source", &argparse.Options{Help: "Use source src_addr for outgoing packets"})
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src_dev := parser.String("D", "dev", &argparse.Options{Help: "Use the following Network Devices as the source address in outgoing packets"})
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router := parser.Flag("R", "route", &argparse.Options{Help: "Show Routing Table [Provided By BGP.Tools]"})
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packet_interval := parser.Int("z", "send-time", &argparse.Options{Default: 100, Help: "Set the time interval for sending every packet. Useful when some routers use rate-limit for ICMP messages"})
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ttl_interval := parser.Int("i", "ttl-time", &argparse.Options{Default: 500, Help: "Set the time interval for sending packets groups by TTL. Useful when some routers use rate-limit for ICMP messages"})
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str := parser.StringPositional(&argparse.Options{Help: "IP Address or domain name"})
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lang := parser.Selector("g", "language", []string{"en", "cn"}, &argparse.Options{Default: "cn",
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Help: "Choose the language for displaying [en, cn]"})
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err := parser.Parse(os.Args)
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if err != nil {
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// In case of error print error and print usage
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// This can also be done by passing -h or --help flags
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fmt.Print(parser.Usage(err))
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return
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}
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printer.Version()
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if *ver {
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printer.CopyRight()
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os.Exit(0)
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}
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domain := *str
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if *port == 0 {
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*port = 80
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}
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if *fast_trace {
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fastTrace.FastTest(*tcp, *output)
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if *output {
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fmt.Println("您的追踪日志已经存放在 /tmp/trace.log 中")
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}
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os.Exit(0)
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}
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if domain == "" {
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fmt.Print(parser.Usage(err))
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return
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}
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if strings.Contains(domain, "/") {
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domain = strings.Split(domain, "/")[2]
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}
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if strings.Contains(domain, "]") {
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domain = strings.Split(strings.Split(domain, "]")[0], "[")[1]
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} else if strings.Contains(domain, ":") {
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if strings.Count(domain, ":") == 1 {
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domain = strings.Split(domain, ":")[0]
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}
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}
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capabilities_check()
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// return
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var ip net.IP
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if runtime.GOOS == "windows" && (*tcp || *udp) {
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fmt.Println("NextTrace 基于 Windows 的路由跟踪还在早期开发阶段，目前还存在诸多问题，TCP/UDP SYN 包请求可能不能正常运行")
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}
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if *udp {
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ip = util.DomainLookUp(domain, true)
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} else {
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ip = util.DomainLookUp(domain, false)
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}
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if *src_dev != "" {
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dev, _ := net.InterfaceByName(*src_dev)
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if addrs, err := dev.Addrs(); err == nil {
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for _, addr := range addrs {
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if (addr.(*net.IPNet).IP.To4() == nil) == (ip.To4() == nil) {
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*src_addr = addr.(*net.IPNet).IP.String()
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}
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}
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}
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}
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if *dn42 {
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// 初始化配置
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config.InitConfig()
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*dataOrigin = "DN42"
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*maptrace = true
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}
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if strings.ToUpper(*dataOrigin) == "LEOMOEAPI" {
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w := wshandle.New()
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w.Interrupt = make(chan os.Signal, 1)
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signal.Notify(w.Interrupt, os.Interrupt)
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defer func() {
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w.Conn.Close()
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}()
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}
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printer.PrintTraceRouteNav(ip, domain, *dataOrigin)
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var m trace.Method = ""
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switch {
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case *tcp:
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m = trace.TCPTrace
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case *udp:
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m = trace.UDPTrace
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default:
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m = trace.ICMPTrace
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}
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if !*tcp && *port == 80 {
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*port = 53
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}
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var conf = trace.Config{
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DN42: *dn42,
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SrcAddr: *src_addr,
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BeginHop: *beginHop,
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DestIP: ip,
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DestPort: *port,
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MaxHops: *maxHops,
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PacketInterval: *packet_interval,
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TTLInterval: *ttl_interval,
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NumMeasurements: *numMeasurements,
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ParallelRequests: *parallelRequests,
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Lang: *lang,
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RDns: !*noRdns,
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AlwaysWaitRDNS: *alwaysRdns,
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IPGeoSource: ipgeo.GetSource(*dataOrigin),
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Timeout: 1 * time.Second,
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}
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if !*tablePrint {
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if *classicPrint {
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conf.RealtimePrinter = printer.ClassicPrinter
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} else {
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if *output {
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conf.RealtimePrinter = tracelog.RealtimePrinter
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} else if *router {
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conf.RealtimePrinter = printer.RealtimePrinterWithRouter
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fmt.Println("路由表数据源由 BGP.Tools 提供，在此特表感谢")
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} else {
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conf.RealtimePrinter = printer.RealtimePrinter
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}
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}
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} else {
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if !*report {
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conf.AsyncPrinter = printer.TracerouteTablePrinter
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}
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}
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res, err := trace.Traceroute(m, conf)
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if err != nil {
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log.Fatalln(err)
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}
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if *tablePrint {
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printer.TracerouteTablePrinter(res)
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}
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if *routePath {
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r := reporter.New(res, ip.String())
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r.Print()
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}
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if !*maptrace {
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r, _ := json.Marshal(res)
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tracemap.GetMapUrl(string(r))
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}
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}
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func capabilities_check() {
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// Windows 判断放在前面，防止遇到一些奇奇怪怪的问题
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if runtime.GOOS == "windows" {
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// Running on Windows, skip checking capabilities
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return
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}
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uid := os.Getuid()
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if uid == 0 {
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// Running as root, skip checking capabilities
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return
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}
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/***
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* 检查当前进程是否有两个关键的权限
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==== 看不到我 ====
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* 没办法啦
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* 自己之前承诺的坑补全篇
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* 被迫填坑系列 qwq
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==== 看不到我 ====
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***/
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// NewPid 已经被废弃了，这里改用 NewPid2 方法
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caps, err := capability.NewPid2(0)
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if err != nil {
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// 判断是否为macOS
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if runtime.GOOS == "darwin" {
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// macOS下报错有问题
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} else {
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fmt.Println(err)
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}
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return
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}
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// load 获取全部的 caps 信息
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err = caps.Load()
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if err != nil {
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fmt.Println(err)
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return
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}
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// 判断一下权限有木有
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if caps.Get(capability.EFFECTIVE, capability.CAP_NET_RAW) && caps.Get(capability.EFFECTIVE, capability.CAP_NET_ADMIN) {
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// 有权限啦
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return
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} else {
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// 没权限啦
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fmt.Println("您正在以普通用户权限运行 NextTrace，但 NextTrace 未被赋予监听网络套接字的ICMP消息包、修改IP头信息（TTL）等路由跟踪所需的权限")
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fmt.Println("请使用管理员用户执行 `sudo setcap cap_net_raw,cap_net_admin+eip ${your_nexttrace_path}/nexttrace` 命令，赋予相关权限后再运行~")
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fmt.Println("什么？为什么 ping 普通用户执行不要 root 权限？因为这些工具在管理员安装时就已经被赋予了一些必要的权限，具体请使用 `getcap /usr/bin/ping` 查看")
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}
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}
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