✨ v0.9.22 WebSSH

.gitignore

@@ -14,3 +14,4 @@
 /data
 /dist
 .DS_Store
+/main

README.md

@@ -4,7 +4,7 @@
   <br>
   <small><i>LOGO designed by <a href="https://xio.ng" target="_blank">熊大</a> .</i></small>
   <br><br>
-<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=Dash%20v0.9.21&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.6.7-brightgreen?style=for-the-badge&logo=linux">
+<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=Dash%20v0.9.22&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.6.7-brightgreen?style=for-the-badge&logo=linux">
   <br>
   <br>
   <p>:trollface: <b>哪吒监控</b> 一站式轻监控轻运维系统。支持系统状态、HTTP(SSL 证书变更、即将到期、到期)、TCP、Ping 监控报警，命令批量执行和计划任务。</p>	

cmd/agent/main.go

@@ -14,20 +14,18 @@ import (
 	"net/url"
 	"os"
 	"os/exec"
-	"runtime"
-	"syscall"
 	"time"
-	"unsafe"
 
 	"github.com/blang/semver"
 	"github.com/genkiroid/cert"
 	"github.com/go-ping/ping"
 	"github.com/gorilla/websocket"
-	"github.com/kr/pty"
 	"github.com/p14yground/go-github-selfupdate/selfupdate"
 	"google.golang.org/grpc"
 
 	"github.com/naiba/nezha/cmd/agent/monitor"
+	"github.com/naiba/nezha/cmd/agent/processgroup"
+	"github.com/naiba/nezha/cmd/agent/pty"
 	"github.com/naiba/nezha/model"
 	"github.com/naiba/nezha/pkg/utils"
 	pb "github.com/naiba/nezha/proto"
@@ -97,6 +95,8 @@ func run() {
 		ClientSecret: clientSecret,
 	}
 
+	go pty.DownloadDependency()
+
 	// 上报服务器信息
 	go reportState()
 	// 更新IP信息
@@ -311,7 +311,7 @@ func handleCommandTask(task *pb.Task, result *pb.TaskResult) {
 	startedAt := time.Now()
 	var cmd *exec.Cmd
 	var endCh = make(chan struct{})
-	pg, err := utils.NewProcessExitGroup()
+	pg, err := processgroup.NewProcessExitGroup()
 	if err != nil {
 		// 进程组创建失败，直接退出
 		result.Data = err.Error()
@@ -345,6 +345,11 @@ func handleCommandTask(task *pb.Task, result *pb.TaskResult) {
 	result.Delay = float32(time.Since(startedAt).Seconds())
 }
 
+type WindowSize struct {
+	Cols uint32
+	Rows uint32
+}
+
 func handleTerminalTask(task *pb.Task) {
 	var terminal model.TerminalTask
 	err := json.Unmarshal([]byte(task.GetData()), &terminal)
@@ -365,36 +370,18 @@ func handleTerminalTask(task *pb.Task) {
 	}
 	defer conn.Close()
 
-	var cmd *exec.Cmd
+	tty, err := pty.Start()
-	var shellPath string
-	if runtime.GOOS == "windows" {
-		shellPath, err = exec.LookPath("powershell.exe")
-		if err != nil || shellPath == "" {
-			shellPath = "cmd.exe"
-		}
-	} else {
-		shellPath = os.Getenv("SHELL")
-		if shellPath == "" {
-			shellPath = "sh"
-		}
-	}
-	cmd = exec.Command(shellPath)
-	cmd.Env = append(os.Environ(), "TERM=xterm")
-
-	tty, err := pty.Start(cmd)
 	if err != nil {
 		println("Terminal pty.Start失败：", err)
 		return
 	}
 
 	defer func() {
-		cmd.Process.Kill()
-		cmd.Process.Wait()
 		tty.Close()
 		conn.Close()
 		println("terminal exit", terminal.Session)
 	}()
-	println("terminal init", terminal.Session, shellPath)
+	println("terminal init", terminal.Session)
 
 	go func() {
 		for {
@@ -434,17 +421,12 @@ func handleTerminalTask(task *pb.Task) {
 			io.Copy(tty, reader)
 		case 1:
 			decoder := json.NewDecoder(reader)
-			resizeMessage := windowSize{}
+			var resizeMessage WindowSize
 			err := decoder.Decode(&resizeMessage)
 			if err != nil {
 				continue
 			}
-			syscall.Syscall(
+			tty.Setsize(resizeMessage.Cols, resizeMessage.Rows)
-				syscall.SYS_IOCTL,
-				tty.Fd(),
-				syscall.TIOCSWINSZ,
-				uintptr(unsafe.Pointer(&resizeMessage)),
-			)
 		}
 	}
 }

cmd/agent/processgroup/process_group.go

@@ -1,6 +1,6 @@
 // +build !windows
 
-package utils
+package processgroup
 
 import (
 	"os/exec"

cmd/agent/processgroup/process_group_windows.go

@@ -1,6 +1,6 @@
 // +build windows
 
-package utils
+package processgroup
 
 import (
 	"fmt"

cmd/agent/pty/pty.go

@@ -0,0 +1,52 @@
+//go:build !windows
+//+build !windows
+
+package pty
+
+import (
+	"os"
+	"os/exec"
+
+	opty "github.com/creack/pty"
+)
+
+type Pty struct {
+	tty *os.File
+	cmd *exec.Cmd
+}
+
+func DownloadDependency() {
+}
+
+func Start() (*Pty, error) {
+	shellPath := os.Getenv("SHELL")
+	if shellPath == "" {
+		shellPath = "sh"
+	}
+	cmd := exec.Command(shellPath)
+	cmd.Env = append(os.Environ(), "TERM=xterm")
+	tty, err := opty.Start(cmd)
+	return &Pty{tty: tty, cmd: cmd}, err
+}
+
+func (pty *Pty) Write(p []byte) (n int, err error) {
+	return pty.tty.Write(p)
+}
+
+func (pty *Pty) Read(p []byte) (n int, err error) {
+	return pty.tty.Read(p)
+}
+
+func (pty *Pty) Setsize(cols, rows uint32) error {
+	return opty.Setsize(pty.tty, &opty.Winsize{
+		Cols: uint16(cols),
+		Rows: uint16(rows),
+	})
+}
+
+func (pty *Pty) Close() error {
+	if err := pty.tty.Close(); err != nil {
+		return err
+	}
+	return pty.cmd.Process.Kill()
+}

cmd/agent/pty/pty_windows.go

@@ -0,0 +1,96 @@
+// go:build windows
+// +build windows
+
+package pty
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+
+	"github.com/artdarek/go-unzip"
+	"github.com/iamacarpet/go-winpty"
+)
+
+type Pty struct {
+	tty *winpty.WinPTY
+}
+
+func DownloadDependency() {
+	resp, err := http.Get("https://dn-dao-github-mirror.daocloud.io/rprichard/winpty/releases/download/0.4.3/winpty-0.4.3-msvc2015.zip")
+	if err != nil {
+		log.Println("wintty 下载失败", err)
+		return
+	}
+	defer resp.Body.Close()
+	content, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		log.Println("wintty 下载失败", err)
+		return
+	}
+	if err := ioutil.WriteFile("./wintty.zip", content, os.FileMode(0777)); err != nil {
+		log.Println("wintty 写入失败", err)
+		return
+	}
+	if err := unzip.New("./wintty.zip", "./wintty").Extract(); err != nil {
+		fmt.Println("wintty 解压失败", err)
+		return
+	}
+	arch := "x64"
+	if runtime.GOARCH != "amd64" {
+		arch = "ia32"
+	}
+	executablePath, err := getExecutableFilePath()
+	if err != nil {
+		fmt.Println("wintty 获取文件路径失败", err)
+		return
+	}
+	os.Rename("./wintty/"+arch+"/bin/winpty-agent.exe", filepath.Join(executablePath, "winpty-agent.exe"))
+	os.Rename("./wintty/"+arch+"/bin/winpty.dll", filepath.Join(executablePath, "winpty.dll"))
+	os.RemoveAll("./wintty")
+	os.RemoveAll("./wintty.zip")
+}
+
+func getExecutableFilePath() (string, error) {
+	ex, err := os.Executable()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Dir(ex), nil
+}
+
+func Start() (*Pty, error) {
+	shellPath, err := exec.LookPath("powershell.exe")
+	if err != nil || shellPath == "" {
+		shellPath = "cmd.exe"
+	}
+	path, err := getExecutableFilePath()
+	if err != nil {
+		return nil, err
+	}
+	tty, err := winpty.Open(path, shellPath)
+	return &Pty{tty: tty}, err
+}
+
+func (pty *Pty) Write(p []byte) (n int, err error) {
+	return pty.tty.StdIn.Read(p)
+}
+
+func (pty *Pty) Read(p []byte) (n int, err error) {
+	return pty.tty.StdOut.Read(p)
+}
+
+func (pty *Pty) Setsize(cols, rows uint32) error {
+	pty.tty.SetSize(cols, rows)
+	return nil
+}
+
+func (pty *Pty) Close() error {
+	pty.tty.Close()
+	return nil
+}

cmd/playground/main.go

@@ -1,191 +1,7 @@
 package main
 
-import (
+import "github.com/naiba/nezha/cmd/agent/pty"
-	"context"
-	"crypto/tls"
-	"fmt"
-	"io"
-	"log"
-	"net"
-	"net/http"
-	"os"
-	"os/exec"
-	"strings"
-	"time"
-
-	"github.com/genkiroid/cert"
-	"github.com/go-ping/ping"
-	"github.com/shirou/gopsutil/v3/cpu"
-	"github.com/shirou/gopsutil/v3/disk"
-	"github.com/shirou/gopsutil/v3/host"
-
-	"github.com/naiba/nezha/pkg/utils"
-)
 
 func main() {
-	// icmp()
+	pty.DownloadDependency()
-	// tcpping()
-	// httpWithSSLInfo()
-	// sysinfo()
-	// cmdExec()
-	// resolveIP("ipapi.co", true)
-	// resolveIP("ipapi.co", false)
-	log.Println(exec.LookPath("powershell.exe"))
-	defaultShell := os.Getenv("SHELL")
-	if defaultShell == "" {
-		defaultShell = "sh"
-	}
-	cmd := exec.Command(defaultShell)
-	cmd.Stdin = os.Stdin
-	stdoutReader, err := cmd.StdoutPipe()
-	if err != nil {
-		println("Terminal StdoutPipe:", err)
-		return
-	}
-	stderrReader, err := cmd.StderrPipe()
-	if err != nil {
-		println("Terminal StderrPipe: ", err)
-		return
-	}
-
-	readers := []io.Reader{stdoutReader, stderrReader}
-	for i := 0; i < len(readers); i++ {
-		go func(j int) {
-			data := make([]byte, 2048)
-			for {
-				count, err := readers[j].Read(data)
-				if err != nil {
-					panic(err)
-				}
-				os.Stdout.Write(data[:count])
-			}
-		}(i)
-	}
-
-	cmd.Run()
-}
-
-func resolveIP(addr string, ipv6 bool) {
-	url := strings.Split(addr, ":")
-
-	dnsServers := []string{"2606:4700:4700::1001", "2001:4860:4860::8844", "2400:3200::1", "2400:3200:baba::1"}
-	if !ipv6 {
-		dnsServers = []string{"1.0.0.1", "8.8.4.4", "223.5.5.5", "223.6.6.6"}
-	}
-
-	log.Println(net.LookupIP(url[0]))
-	for i := 0; i < len(dnsServers); i++ {
-		dnsServer := dnsServers[i]
-		if ipv6 {
-			dnsServer = "[" + dnsServer + "]"
-		}
-		r := &net.Resolver{
-			PreferGo: true,
-			Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
-				d := net.Dialer{
-					Timeout: time.Second * 10,
-				}
-				return d.DialContext(ctx, "udp", dnsServer+":53")
-			},
-		}
-		log.Println(r.LookupIP(context.Background(), "ip", url[0]))
-	}
-}
-
-func tcpping() {
-	start := time.Now()
-	conn, err := net.DialTimeout("tcp", "example.com:80", time.Second*10)
-	if err != nil {
-		panic(err)
-	}
-	conn.Write([]byte("ping\n"))
-	conn.Close()
-	fmt.Println(time.Since(start).Microseconds(), float32(time.Since(start).Microseconds())/1000.0)
-}
-
-func sysinfo() {
-	hi, _ := host.Info()
-	var cpuType string
-	if hi.VirtualizationSystem != "" {
-		cpuType = "Virtual"
-	} else {
-		cpuType = "Physical"
-	}
-	cpuModelCount := make(map[string]int)
-	ci, _ := cpu.Info()
-	for i := 0; i < len(ci); i++ {
-		cpuModelCount[ci[i].ModelName]++
-	}
-	var cpus []string
-	for model, count := range cpuModelCount {
-		cpus = append(cpus, fmt.Sprintf("%s %d %s Core", model, count, cpuType))
-	}
-	os.Exit(0)
-	// 硬盘信息，不使用的原因是会重复统计 Linux、Mac
-	dparts, _ := disk.Partitions(false)
-	for _, part := range dparts {
-		u, _ := disk.Usage(part.Mountpoint)
-		if u != nil {
-			log.Printf("%s %d %d", part.Device, u.Total, u.Used)
-		}
-	}
-}
-
-func httpWithSSLInfo() {
-	// 跳过 SSL 检查
-	transCfg := &http.Transport{
-		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
-	}
-	httpClient := &http.Client{Transport: transCfg, CheckRedirect: func(req *http.Request, via []*http.Request) error {
-		return http.ErrUseLastResponse
-	}}
-	url := "https://ops.naibahq.com"
-	resp, err := httpClient.Get(url)
-	fmt.Println(err, resp)
-	// SSL 证书信息获取
-	c := cert.NewCert(url[8:])
-	fmt.Println(c.Error)
-}
-
-func icmp() {
-	pinger, err := ping.NewPinger("10.10.10.2")
-	if err != nil {
-		panic(err) // Blocks until finished.
-	}
-	pinger.Count = 3000
-	pinger.Timeout = 10 * time.Second
-	if err = pinger.Run(); err != nil {
-		panic(err)
-	}
-	fmt.Println(pinger.PacketsRecv, float32(pinger.Statistics().AvgRtt.Microseconds())/1000.0)
-}
-
-func cmdExec() {
-	execFrom, err := os.Getwd()
-	if err != nil {
-		panic(err)
-	}
-	var cmd *exec.Cmd
-	pg, err := utils.NewProcessExitGroup()
-	if err != nil {
-		panic(err)
-	}
-	if utils.IsWindows() {
-		cmd = exec.Command("cmd", "/c", os.Args[1])
-		// cmd = exec.Command("cmd", "/c", execFrom+"/cmd/playground/example.sh hello asd")
-	} else {
-		cmd = exec.Command("sh", "-c", execFrom+`/cmd/playground/example.sh hello && \
-			echo world!`)
-	}
-	pg.AddProcess(cmd)
-	go func() {
-		time.Sleep(time.Second * 10)
-		if err = pg.Dispose(); err != nil {
-			panic(err)
-		}
-		fmt.Println("killed")
-	}()
-	output, err := cmd.Output()
-	log.Println("output:", string(output))
-	log.Println("err:", err)
 }

go.mod

@@ -4,7 +4,9 @@ go 1.13
 
 require (
 	code.cloudfoundry.org/bytefmt v0.0.0-20200131002437-cf55d5288a48
+	github.com/artdarek/go-unzip v1.0.0
 	github.com/blang/semver v3.5.1+incompatible
+	github.com/creack/pty v1.1.14
 	github.com/fsnotify/fsnotify v1.4.9
 	github.com/genkiroid/cert v0.0.0-20191007122723-897560fbbe50
 	github.com/gin-contrib/pprof v1.3.0
@@ -14,7 +16,7 @@ require (
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/gorilla/websocket v1.4.2
 	github.com/hashicorp/go-uuid v1.0.1
-	github.com/kr/pty v1.1.1
+	github.com/iamacarpet/go-winpty v1.0.2
 	github.com/onsi/ginkgo v1.7.0 // indirect
 	github.com/onsi/gomega v1.4.3 // indirect
 	github.com/ory/graceful v0.1.1

go.sum

@@ -45,6 +45,8 @@ github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRF
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/artdarek/go-unzip v1.0.0 h1:Ja9wfhiXyl67z5JT37rWjTSb62KXDP+9jHRkdSREUvg=
+github.com/artdarek/go-unzip v1.0.0/go.mod h1:KhX4LV7e4UwWCTo7orBYnJ6LJ/dZTI6jXxUg69hO/C8=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
@@ -63,6 +65,8 @@ github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
+github.com/creack/pty v1.1.14 h1:55VbUWoBxE1iTAh3B6JztD6xyQ06CvW/31oD6rYwrtY=
+github.com/creack/pty v1.1.14/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -193,6 +197,8 @@ github.com/hashicorp/memberlist v0.1.3/go.mod h1:ajVTdAv/9Im8oMAAj5G31PhhMCZJV2p
 github.com/hashicorp/serf v0.8.2/go.mod h1:6hOLApaqBFA1NXqRQAsxw9QxuDEvNxSQRwA/JwenrHc=
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
+github.com/iamacarpet/go-winpty v1.0.2 h1:jwPVTYrjAHZx6Mcm6K5i9G4opMp5TblEHH5EQCl/Gzw=
+github.com/iamacarpet/go-winpty v1.0.2/go.mod h1:/GHKJicG/EVRQIK1IQikMYBakBkhj/3hTjLgdzYsmpI=
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/inconshreveable/go-update v0.0.0-20160112193335-8152e7eb6ccf h1:WfD7VjIE6z8dIvMsI4/s+1qr5EL+zoIGev1BQj1eoJ8=
 github.com/inconshreveable/go-update v0.0.0-20160112193335-8152e7eb6ccf/go.mod h1:hyb9oH7vZsitZCiBt0ZvifOrB+qc8PS5IiilCIb87rg=
@@ -216,7 +222,6 @@ github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxv
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pty v1.1.1 h1:VkoXIwSboBpnk99O/KFauAEILuNHv5DVFKZMBN/gUgw=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=

resource/template/dashboard/terminal.html

@@ -6,7 +6,7 @@
     <meta charset="UTF-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Terminal - {{.Title}}</title>
+    <title>tty#{{.SessionID}} - {{.Title}}</title>
     <link rel="shortcut icon" type="image/png" href="/static/logo.svg?v20210804" />
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/xterm@4.13.0/css/xterm.css">
 </head>
@@ -22,7 +22,7 @@
     }
 </style>
 
-<body>
+<body onresize="onResize()">
     <div id="terminal-container"></div>
     <script src="https://cdn.jsdelivr.net/npm/xterm@4.13.0/lib/xterm.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/xterm-addon-attach@0.6.0/lib/xterm-addon-attach.min.js"></script>
@@ -39,7 +39,22 @@
         term.loadAddon(attachAddon);
         term.loadAddon(fitAddon);
         term.open(document.getElementById('terminal-container'));
+
+        function onResize() {
             fitAddon.fit()
+            const w = fitAddon.proposeDimensions();
+            const prefix = new Int8Array([1]);
+            const resizeMessage = new TextEncoder().encode(JSON.stringify({
+                Rows: w.rows,
+                Cols: w.cols,
+            }));
+
+            var msg = new Int8Array(prefix.length + resizeMessage.length);
+            msg.set(prefix);
+            msg.set(resizeMessage, prefix.length);
+
+            socket.send(msg)
+        }
     </script>
 </body>
 

service/dao/dao.go

@@ -13,7 +13,7 @@ import (
 	pb "github.com/naiba/nezha/proto"
 )
 
-var Version = "v0.9.21" // ！！记得修改 README 中的 badge 版本！！
+var Version = "v0.9.22" // ！！记得修改 README 中的 badge 版本！！
 
 var (
 	Conf  *model.Config