修复 「1.2.2 用户管理-用户列表勾选单一用户会全选 」 close #216
This commit is contained in:
dushixiang
146
server/sshd/sshd.go
Normal file
146
server/sshd/sshd.go
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@ -0,0 +1,146 @@
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package sshd
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"net"
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"strings"
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"next-terminal/server/config"
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"next-terminal/server/constant"
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"next-terminal/server/global/security"
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"next-terminal/server/log"
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"next-terminal/server/repository"
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"next-terminal/server/service"
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"next-terminal/server/utils"
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"github.com/gliderlabs/ssh"
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"gorm.io/gorm"
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)
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type Sshd struct {
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gui *Gui
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}
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func init() {
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gui := &Gui{}
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sshd := &Sshd{
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gui: gui,
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}
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go sshd.Serve()
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}
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func (sshd Sshd) passwordAuth(ctx ssh.Context, pass string) bool {
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username := ctx.User()
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remoteAddr := strings.Split(ctx.RemoteAddr().String(), ":")[0]
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user, err := repository.UserRepository.FindByUsername(context.TODO(), username)
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if err != nil {
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// 保存登录日志
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_ = service.UserService.SaveLoginLog(remoteAddr, "terminal", username, false, false, "", "账号或密码不正确")
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return false
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}
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if err := utils.Encoder.Match([]byte(user.Password), []byte(pass)); err != nil {
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// 保存登录日志
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_ = service.UserService.SaveLoginLog(remoteAddr, "terminal", username, false, false, "", "账号或密码不正确")
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return false
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}
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return true
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}
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func (sshd Sshd) connCallback(ctx ssh.Context, conn net.Conn) net.Conn {
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securities := security.GlobalSecurityManager.Values()
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if len(securities) == 0 {
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return conn
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}
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ip := strings.Split(conn.RemoteAddr().String(), ":")[0]
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for _, s := range securities {
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if strings.Contains(s.IP, "/") {
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// CIDR
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_, ipNet, err := net.ParseCIDR(s.IP)
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if err != nil {
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continue
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}
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if !ipNet.Contains(net.ParseIP(ip)) {
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continue
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}
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} else if strings.Contains(s.IP, "-") {
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// 范围段
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split := strings.Split(s.IP, "-")
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if len(split) < 2 {
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continue
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}
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start := split[0]
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end := split[1]
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intReqIP := utils.IpToInt(ip)
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if intReqIP < utils.IpToInt(start) || intReqIP > utils.IpToInt(end) {
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continue
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}
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} else {
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// IP
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if s.IP != ip {
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continue
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}
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}
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if s.Rule == constant.AccessRuleAllow {
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return conn
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}
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if s.Rule == constant.AccessRuleReject {
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_, _ = conn.Write([]byte("your access request was denied :(\n"))
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return nil
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}
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}
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return conn
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}
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func (sshd Sshd) sessionHandler(sess *ssh.Session) {
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defer func() {
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_ = (*sess).Close()
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}()
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username := (*sess).User()
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remoteAddr := strings.Split((*sess).RemoteAddr().String(), ":")[0]
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user, err := repository.UserRepository.FindByUsername(context.TODO(), username)
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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_, _ = io.WriteString(*sess, "您输入的账户或密码不正确.\n")
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} else {
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_, _ = io.WriteString(*sess, err.Error())
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}
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return
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}
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// 判断是否需要进行双因素认证
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if user.TOTPSecret != "" && user.TOTPSecret != "-" {
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sshd.gui.totpUI(sess, user, remoteAddr, username)
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} else {
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// 保存登录日志
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_ = service.UserService.SaveLoginLog(remoteAddr, "terminal", username, true, false, utils.LongUUID(), "")
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sshd.gui.MainUI(sess, user)
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}
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}
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func (sshd Sshd) Serve() {
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ssh.Handle(func(s ssh.Session) {
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_, _ = io.WriteString(s, fmt.Sprintf(constant.Banner, constant.Version))
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sshd.sessionHandler(&s)
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})
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fmt.Printf("⇨ sshd server started on %v\n", config.GlobalCfg.Sshd.Addr)
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err := ssh.ListenAndServe(
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config.GlobalCfg.Sshd.Addr,
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nil,
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ssh.PasswordAuth(sshd.passwordAuth),
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ssh.HostKeyFile(config.GlobalCfg.Sshd.Key),
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ssh.WrapConn(sshd.connCallback),
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)
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log.Fatal(fmt.Sprintf("启动sshd服务失败: %v", err.Error()))
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}
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337
server/sshd/ui.go
Normal file
337
server/sshd/ui.go
Normal file
@ -0,0 +1,337 @@
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package sshd
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"next-terminal/server/api"
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"next-terminal/server/config"
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"next-terminal/server/constant"
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"next-terminal/server/global/cache"
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"next-terminal/server/global/session"
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"next-terminal/server/guacd"
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"next-terminal/server/log"
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"next-terminal/server/model"
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"next-terminal/server/repository"
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"next-terminal/server/service"
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"next-terminal/server/term"
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"next-terminal/server/totp"
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"next-terminal/server/utils"
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"path"
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"strings"
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"github.com/gliderlabs/ssh"
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"github.com/manifoldco/promptui"
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)
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type Gui struct {
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}
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func (gui Gui) MainUI(sess *ssh.Session, user model.User) {
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prompt := promptui.Select{
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Label: "欢迎使用 Next Terminal，请选择您要使用的功能",
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Items: []string{"我的资产", "退出系统"},
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Stdin: *sess,
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Stdout: *sess,
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}
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MainLoop:
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for {
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_, result, err := prompt.Run()
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if err != nil {
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fmt.Printf("Prompt failed %v\n", err)
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return
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}
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switch result {
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case "我的资产":
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gui.AssetUI(sess, user)
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case "退出系统":
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break MainLoop
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}
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}
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}
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func (gui Gui) AssetUI(sess *ssh.Session, user model.User) {
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assets, err := repository.AssetRepository.FindByProtocolAndUser(context.TODO(), constant.SSH, user)
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if err != nil {
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return
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}
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quitItem := model.Asset{ID: "quit", Name: "返回上级菜单", Description: "这里是返回上级菜单的选项"}
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assets = append([]model.Asset{quitItem}, assets...)
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templates := &promptui.SelectTemplates{
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Label: "{{ . }}?",
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Active: "\U0001F336 {{ .Name | cyan }} ({{ .IP | red }}:{{ .Port | red }})",
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Inactive: " {{ .Name | cyan }} ({{ .IP | red }}:{{ .Port | red }})",
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Selected: "\U0001F336 {{ .Name | red | cyan }}",
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Details: `
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--------- 详细信息 ----------
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{{ "名称:" | faint }} {{ .Name }}
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{{ "主机:" | faint }} {{ .IP }}
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{{ "端口:" | faint }} {{ .Port }}
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{{ "标签:" | faint }} {{ .Tags }}
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{{ "备注:" | faint }} {{ .Description }}
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`,
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}
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searcher := func(input string, index int) bool {
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asset := assets[index]
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name := strings.Replace(strings.ToLower(asset.Name), " ", "", -1)
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input = strings.Replace(strings.ToLower(input), " ", "", -1)
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return strings.Contains(name, input)
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}
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prompt := promptui.Select{
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Label: "请选择您要访问的资产",
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Items: assets,
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Templates: templates,
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Size: 4,
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Searcher: searcher,
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Stdin: *sess,
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Stdout: *sess,
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}
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AssetUILoop:
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for {
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i, _, err := prompt.Run()
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if err != nil {
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fmt.Printf("Prompt failed %v\n", err)
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return
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}
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chooseAssetId := assets[i].ID
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switch chooseAssetId {
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case "quit":
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break AssetUILoop
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default:
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if err := gui.createSession(sess, chooseAssetId, user.ID); err != nil {
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_, _ = io.WriteString(*sess, err.Error()+"\r\n")
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return
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}
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}
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}
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}
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func (gui Gui) createSession(sess *ssh.Session, assetId, creator string) (err error) {
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asset, err := repository.AssetRepository.FindById(context.TODO(), assetId)
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if err != nil {
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return err
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}
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ClientIP := strings.Split((*sess).RemoteAddr().String(), ":")[0]
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s := &model.Session{
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ID: utils.UUID(),
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AssetId: asset.ID,
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Username: asset.Username,
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Password: asset.Password,
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PrivateKey: asset.PrivateKey,
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Passphrase: asset.Passphrase,
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Protocol: asset.Protocol,
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IP: asset.IP,
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Port: asset.Port,
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Status: constant.NoConnect,
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Creator: creator,
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ClientIP: ClientIP,
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Mode: constant.Terminal,
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Upload: "0",
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Download: "0",
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Delete: "0",
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Rename: "0",
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StorageId: "",
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AccessGatewayId: asset.AccessGatewayId,
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}
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if asset.AccountType == "credential" {
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credential, err := repository.CredentialRepository.FindById(context.TODO(), asset.CredentialId)
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if err != nil {
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return nil
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}
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if credential.Type == constant.Custom {
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s.Username = credential.Username
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s.Password = credential.Password
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} else {
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s.Username = credential.Username
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s.PrivateKey = credential.PrivateKey
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s.Passphrase = credential.Passphrase
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}
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}
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if err := repository.SessionRepository.Create(context.TODO(), s); err != nil {
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return err
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}
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return gui.handleAccessAsset(sess, s.ID)
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}
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func (gui Gui) handleAccessAsset(sess *ssh.Session, sessionId string) (err error) {
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s, err := service.SessionService.FindByIdAndDecrypt(context.TODO(), sessionId)
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if err != nil {
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return err
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}
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var (
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username = s.Username
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password = s.Password
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privateKey = s.PrivateKey
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passphrase = s.Passphrase
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ip = s.IP
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port = s.Port
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)
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if s.AccessGatewayId != "" && s.AccessGatewayId != "-" {
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g, err := service.GatewayService.GetGatewayAndReconnectById(s.AccessGatewayId)
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if err != nil {
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return errors.New("获取接入网关失败：" + err.Error())
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}
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if !g.Connected {
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return errors.New("接入网关不可用：" + g.Message)
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}
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exposedIP, exposedPort, err := g.OpenSshTunnel(s.ID, ip, port)
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if err != nil {
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return errors.New("开启SSH隧道失败：" + err.Error())
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}
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defer g.CloseSshTunnel(s.ID)
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ip = exposedIP
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port = exposedPort
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}
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pty, winCh, isPty := (*sess).Pty()
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if !isPty {
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return errors.New("No PTY requested.\n")
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}
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recording := ""
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property, err := repository.PropertyRepository.FindByName(context.TODO(), guacd.EnableRecording)
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if err == nil && property.Value == "true" {
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recording = path.Join(config.GlobalCfg.Guacd.Recording, sessionId, "recording.cast")
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}
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nextTerminal, err := term.NewNextTerminal(ip, port, username, password, privateKey, passphrase, pty.Window.Height, pty.Window.Width, recording, pty.Term, false)
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if err != nil {
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return err
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}
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sshSession := nextTerminal.SshSession
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writer := NewWriter(sessionId, sess, nextTerminal.Recorder)
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sshSession.Stdout = writer
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sshSession.Stdin = *sess
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sshSession.Stderr = *sess
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if err := nextTerminal.RequestPty(pty.Term, pty.Window.Height, pty.Window.Width); err != nil {
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return err
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}
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if err := nextTerminal.Shell(); err != nil {
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return err
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}
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go func() {
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log.Debugf("开启窗口大小监控...")
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for win := range winCh {
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_ = sshSession.WindowChange(win.Height, win.Width)
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}
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log.Debugf("退出窗口大小监控")
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// ==== 修改数据库中的会话状态为已断开,修复用户直接关闭窗口时会话状态不正确的问题 ====
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service.SessionService.CloseSessionById(sessionId, api.Normal, "用户正常退出")
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// ==== 修改数据库中的会话状态为已断开,修复用户直接关闭窗口时会话状态不正确的问题 ====
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}()
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// ==== 修改数据库中的会话状态为已连接 ====
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sessionForUpdate := model.Session{}
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sessionForUpdate.ID = sessionId
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sessionForUpdate.Status = constant.Connected
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sessionForUpdate.Recording = recording
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sessionForUpdate.ConnectedTime = utils.NowJsonTime()
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if sessionForUpdate.Recording == "" {
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// 未录屏时无需审计
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sessionForUpdate.Reviewed = true
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}
|
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if err := repository.SessionRepository.UpdateById(context.TODO(), &sessionForUpdate, sessionId); err != nil {
|
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return err
|
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}
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// ==== 修改数据库中的会话状态为已连接 ====
|
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|
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nextSession := &session.Session{
|
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ID: s.ID,
|
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Protocol: s.Protocol,
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Mode: s.Mode,
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NextTerminal: nextTerminal,
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Observer: session.NewObserver(s.ID),
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}
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go nextSession.Observer.Run()
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session.GlobalSessionManager.Add <- nextSession
|
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|
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if err := sshSession.Wait(); err != nil {
|
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return err
|
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}
|
||||
|
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// ==== 修改数据库中的会话状态为已断开 ====
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service.SessionService.CloseSessionById(sessionId, api.Normal, "用户正常退出")
|
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// ==== 修改数据库中的会话状态为已断开 ====
|
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|
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return nil
|
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}
|
||||
|
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func (gui Gui) totpUI(sess *ssh.Session, user model.User, remoteAddr string, username string) {
|
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|
||||
validate := func(input string) error {
|
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if len(input) < 6 {
|
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return errors.New("双因素认证授权码必须为6个数字")
|
||||
}
|
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return nil
|
||||
}
|
||||
|
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prompt := promptui.Prompt{
|
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Label: "请输入双因素认证授权码",
|
||||
Validate: validate,
|
||||
Mask: '*',
|
||||
Stdin: *sess,
|
||||
Stdout: *sess,
|
||||
}
|
||||
|
||||
var success = false
|
||||
for i := 0; i < 5; i++ {
|
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result, err := prompt.Run()
|
||||
if err != nil {
|
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fmt.Printf("Prompt failed %v\n", err)
|
||||
return
|
||||
}
|
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loginFailCountKey := remoteAddr + username
|
||||
|
||||
v, ok := cache.LoginFailedKeyManager.Get(loginFailCountKey)
|
||||
if !ok {
|
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v = 1
|
||||
}
|
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count := v.(int)
|
||||
if count >= 5 {
|
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_, _ = io.WriteString(*sess, "登录失败次数过多，请等待5分钟后再试\r\n")
|
||||
continue
|
||||
}
|
||||
if !totp.Validate(result, user.TOTPSecret) {
|
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count++
|
||||
println(count)
|
||||
cache.LoginFailedKeyManager.Set(loginFailCountKey, count, cache.LoginLockExpiration)
|
||||
// 保存登录日志
|
||||
_ = service.UserService.SaveLoginLog(remoteAddr, "terminal", username, false, false, "", "双因素认证授权码不正确")
|
||||
_, _ = io.WriteString(*sess, "您输入的双因素认证授权码不匹配\r\n")
|
||||
continue
|
||||
}
|
||||
success = true
|
||||
break
|
||||
}
|
||||
|
||||
if success {
|
||||
// 保存登录日志
|
||||
_ = service.UserService.SaveLoginLog(remoteAddr, "terminal", username, true, false, utils.UUID(), "")
|
||||
gui.MainUI(sess, user)
|
||||
}
|
||||
}
|
||||
77
server/sshd/writer.go
Normal file
77
server/sshd/writer.go
Normal file
@ -0,0 +1,77 @@
|
||||
package sshd
|
||||
|
||||
import (
|
||||
"encoding/hex"
|
||||
"strings"
|
||||
|
||||
"next-terminal/server/api"
|
||||
"next-terminal/server/dto"
|
||||
"next-terminal/server/global/session"
|
||||
"next-terminal/server/term"
|
||||
|
||||
"github.com/gliderlabs/ssh"
|
||||
)
|
||||
|
||||
type Writer struct {
|
||||
sessionId string
|
||||
sess *ssh.Session
|
||||
recorder *term.Recorder
|
||||
rz bool
|
||||
sz bool
|
||||
}
|
||||
|
||||
func NewWriter(sessionId string, sess *ssh.Session, recorder *term.Recorder) *Writer {
|
||||
return &Writer{sessionId: sessionId, sess: sess, recorder: recorder}
|
||||
}
|
||||
|
||||
func (w *Writer) Write(p []byte) (n int, err error) {
|
||||
if w.recorder != nil {
|
||||
s := string(p)
|
||||
if !w.sz && !w.rz {
|
||||
// rz的开头字符
|
||||
hexData := hex.EncodeToString(p)
|
||||
if strings.Contains(hexData, "727a0d2a2a184230303030303030303030303030300d8a11") {
|
||||
w.sz = true
|
||||
} else if strings.Contains(hexData, "727a2077616974696e6720746f20726563656976652e2a2a184230313030303030303233626535300d8a11") {
|
||||
w.rz = true
|
||||
}
|
||||
}
|
||||
|
||||
if w.sz {
|
||||
// sz 会以 OO 结尾
|
||||
if "OO" == s {
|
||||
w.sz = false
|
||||
}
|
||||
} else if w.rz {
|
||||
// rz 最后会显示 Received /home/xxx
|
||||
if strings.Contains(s, "Received") {
|
||||
w.rz = false
|
||||
// 把上传的文件名称也显示一下
|
||||
err := w.recorder.WriteData(s)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
sendObData(w.sessionId, s)
|
||||
}
|
||||
} else {
|
||||
err := w.recorder.WriteData(s)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
sendObData(w.sessionId, s)
|
||||
}
|
||||
}
|
||||
return (*w.sess).Write(p)
|
||||
}
|
||||
|
||||
func sendObData(sessionId, s string) {
|
||||
nextSession := session.GlobalSessionManager.GetById(sessionId)
|
||||
if nextSession != nil {
|
||||
if nextSession.Observer != nil {
|
||||
obs := nextSession.Observer.All()
|
||||
for _, ob := range obs {
|
||||
_ = api.WriteMessage(ob.WebSocket, dto.NewMessage(api.Data, s))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user