初次提交

This commit is contained in:
Mob2003
2023-03-22 11:30:21 +08:00
parent 0c34cff145
commit 30bf0dc9d0
95 changed files with 14609 additions and 0 deletions
+837
View File
@@ -0,0 +1,837 @@
package server
/*
*高级shell功能
*node节点管理、remoteShell远程shellconfig配置管理
*/
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"rakshasa/aes"
"rakshasa/cert"
"rakshasa/common"
"runtime"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/abiosoft/readline"
"github.com/creack/pty"
"github.com/dlclark/regexp2"
"github.com/luyu6056/ishell"
"golang.org/x/text/encoding/simplifiedchinese"
"golang.org/x/text/transform"
)
var (
shellMapLock sync.Mutex
)
type StartCmdParam struct {
Param string
Size *pty.Winsize
}
type remoteCmd struct {
cmdStatus int32
cmd *exec.Cmd
id uint32
stdin io.WriteCloser
inChan chan []byte
translate func(in []byte) ([]byte, error)
ping, pong int64
}
func init() {
configShell := cliInit()
configShell.SetPrompt("rakshasa\\config>")
configShell.AddCmd(&ishell.Cmd{
Name: "info",
Help: "打印当前配置",
Func: func(c *ishell.Context) {
c.Println("当前节点", currentNode.uuid)
c.Println("上级节点地址", currentConfig.DstNode)
c.Println("通讯密码", currentConfig.Password)
c.Println("监听端口", currentConfig.Port)
c.Println("监听IP", currentConfig.ListenIp)
c.Println("禁止额外连接", currentConfig.Limit)
c.Println("配置文件名", currentConfig.FileName)
if currentConfig.FileSave {
c.Println("当前配置:已写入文件")
} else {
c.Println("当前配置:未写入文件")
}
},
})
configShell.AddCmd(&ishell.Cmd{
Name: "save",
Help: "保存文件",
Func: func(c *ishell.Context) {
if err := ConfigSave(); err == nil {
c.Println("写入成功")
} else {
c.Println("保存失败", err.Error())
}
},
})
configShell.AddCmd(&ishell.Cmd{
Name: "d",
Help: "修改上级节点地址,格式为 ip:端口 多个节点以,隔开 注意:不会立刻连接设置节点, 当发生 节点掉线重连 时候会连接该地址",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误,格式为 ip:端口 多个节点以,隔开 如 d 192.168.1.1:8883,192.168.1.2:8883")
return
}
dstNode, err := common.ResolveTCPAddr(c.Args[0])
if err != nil {
c.Println("参数错误,格式为 ip:端口 多个节点以,隔开 如 d 192.168.1.1:8883,192.168.1.2:8883")
return
}
currentConfig.DstNode = dstNode
currentConfig.FileSave = false
},
})
configShell.AddCmd(&ishell.Cmd{
Name: "password",
Help: "修改通讯密码,立即生效",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误,格式为 password \"123456\"")
return
}
c.Println(c.Args)
currentConfig.Password = c.Args[0]
currentConfig.FileSave = false
aes.Key = aes.MD5_B(currentConfig.Password + string(cert.PublicKey[:16]))
},
})
configShell.AddCmd(&ishell.Cmd{
Name: "port",
Help: "修改监听端口,立即生效",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误,格式为 port 8883")
return
}
port, _ := strconv.Atoi(c.Args[0])
if port <= 0 || port > 65535 {
c.Println("参数错误,端口范围是1-65535")
return
}
c.Println("正在关闭server监听")
if currentNode.listen != nil {
currentNode.listen.Close()
currentNode.listen = nil
}
currentConfig.Port = port
currentNode.port = port
currentConfig.FileSave = false
currentNode.broadcastNode()
StartServer(port)
},
})
configShell.AddCmd(&ishell.Cmd{
Name: "ip",
Help: "修改本节点连接ip,当其他节点进行额外连接时候,优先使用此ip连接, 多个ip以,隔开",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误")
return
}
currentConfig.ListenIp = strings.Split(c.Args[0], ",")
currentNode.mainIp = currentConfig.ListenIp
currentConfig.FileSave = false
currentNode.broadcastNode()
},
})
configShell.AddCmd(&ishell.Cmd{
Name: "limit",
Help: "修改本节点Limit设置,使用方法 limit true",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误")
return
}
currentConfig.Limit = c.Args[0] == "true"
currentConfig.FileSave = false
},
})
configShell.AddCmd(&ishell.Cmd{
Name: "f",
Help: "修改配置文件名,使用方法 f config.yaml",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误")
return
}
currentConfig.FileName = c.Args[0]
currentConfig.FileSave = false
},
})
rootCli.AddCmd(&ishell.Cmd{
Name: "config",
Help: "配置管理",
Func: func(c *ishell.Context) {
configShell.Run()
},
})
remoteShell := cliInit()
remoteShell.SetPrompt("rakshasa\\remoteshell>")
fileShell := ishell.New()
remoteShell.AddCmd(&ishell.Cmd{
Name: "file",
Help: "连到节点进行文件管理,参数为id或者uuid",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误")
return
}
workN, _ := getNode(c.Args[0])
if workN == nil {
c.Println("无法连接节点", c.Args[0])
return
}
if workN != nil {
fileShell.Set("node", workN)
result := make(chan interface{}, 1)
id := workN.storeQuery(result)
workN.Write(common.CMD_PWD, id, nil)
select {
case pwd := <-result:
workN.deleteQuery(id)
pwd = strings.ReplaceAll(pwd.(string), "\\", "/")
fileShell.Set("pwd", pwd)
fileShell.SetPrompt(workN.uuid + " " + pwd.(string) + ">")
fileShell.Run()
case <-time.After(common.CMD_TIMEOUT):
workN.deleteQuery(id)
c.Println("连接", c.Args[0], "超时")
}
}
},
})
fileShell.AddCmd(&ishell.Cmd{
Name: "dir",
Help: "打印当前目录文件",
Func: func(c *ishell.Context) {
pwd := fileShell.Get("pwd")
n := c.Get("node").(*node)
resChan := make(chan interface{}, 1)
id := n.storeQuery(resChan)
n.Write(common.CMD_DIR, id, []byte(pwd.(string)))
select {
case res := <-resChan:
n.deleteQuery(id)
c.Println(res)
case <-time.After(common.CMD_TIMEOUT):
n.deleteQuery(id)
c.Println("dir time out")
}
},
})
fileShell.AddCmd(&ishell.Cmd{
Name: "cd",
Help: "切换工作目录",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误")
return
}
dir := c.Args[0]
pwd := fileShell.Get("pwd").(string)
n := c.Get("node").(*node)
if strings.Contains(dir, ":/") || dir[0] == '/' || dir == "~" {
pwd = dir
} else {
pwd += "/" + dir
pwd = strings.TrimRight(realpath(pwd), "/")
}
resChan := make(chan interface{}, 1)
id := n.storeQuery(resChan)
n.Write(common.CMD_CD, id, []byte(pwd))
select {
case res := <-resChan:
n.deleteQuery(id)
if err, ok := res.(error); ok {
c.Println(err.Error())
} else {
pwd = res.(string)
fileShell.Set("pwd", pwd)
c.SetPrompt(n.uuid + " " + pwd + ">")
}
case <-time.After(common.CMD_TIMEOUT):
n.deleteQuery(id)
c.Println("dir time out")
}
},
})
fileShell.AddCmd(&ishell.Cmd{
Name: "upload",
Help: "上传文件 ,upload 本地文件 远程目录(为空传到工作目录)",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 && len(c.Args) != 2 {
c.Println("参数错误")
return
}
s, err := os.Stat(c.Args[0])
if err != nil {
c.Println("打开本地文件", c.Args[0], "错误 ", err)
return
}
f, err := os.Open(c.Args[0])
if err != nil {
c.Println("打开本地文件", c.Args[0], "错误 ", err)
return
}
defer f.Close()
pwd := fileShell.Get("pwd").(string) + "/"
n := c.Get("node").(*node)
if len(c.Args) == 2 {
pwd = c.Args[1]
}
pwd = strings.ReplaceAll(pwd, "\\", "/")
c.Args[0] = strings.ReplaceAll(c.Args[0], "\\", "/")
i := strings.LastIndex(c.Args[0], "/")
if i == -1 {
i = 0
}
if pwd[len(pwd)-1] == '/' {
pwd += c.Args[0][i:]
}
i = strings.LastIndex(pwd, "/")
if i == -1 {
i = 0
}
filename := pwd[i+1:]
dir := pwd[:i]
dir = strings.TrimRight(realpath(dir), "/") + "/"
pwd = dir + filename
resChan := make(chan interface{}, 9999) //避免收消息阻塞
filereadChan := make(chan []byte, 10)
upload := func() {
for i := 0; i < 10; i++ {
buf := make([]byte, common.MAX_PACKAGE-len(pwd)-9)
n, err := f.Read(buf)
if err != nil {
if err == io.EOF {
return
}
resChan <- err
c.Println("读取文件", c.Args[0], "错误", err)
return
}
filereadChan <- buf[:n]
}
}
offset := 0
be := len(pwd) + 1
id := n.storeQuery(resChan)
defer n.deleteQuery(id)
b := []byte(pwd)
b = append(b, 0, 0, 0, 0, 0, 0, 0, 0, 0)
c.ProgressBar().Start()
go upload()
var resnum int
for {
select {
case data := <-filereadChan:
b[be] = byte(offset)
b[be+1] = byte(offset >> 8)
b[be+2] = byte(offset >> 16)
b[be+3] = byte(offset >> 24)
b[be+4] = byte(offset >> 32)
b[be+5] = byte(offset >> 40)
b[be+6] = byte(offset >> 48)
b[be+7] = byte(offset >> 56)
offset += len(data)
n.Write(common.CMD_UPLOAD, id, append(b, data...))
case res := <-resChan:
switch v := res.(type) {
case error:
c.ProgressBar().Stop()
c.Println("上传失败", res)
return
case int64:
resnum++
i := v * 100 / s.Size()
c.ProgressBar().Suffix(fmt.Sprint(" ", i, "%"))
c.ProgressBar().Progress(int(i))
if v == s.Size() {
c.ProgressBar().Stop()
c.Println(c.Args[0], "上传成功")
return
}
if resnum >= 5 {
go upload()
resnum -= 10
}
default:
c.Println("协议错误")
return
}
case <-time.After(common.CMD_TIMEOUT):
c.ProgressBar().Stop()
c.Println("upload time out")
return
}
}
},
})
fileShell.AddCmd(&ishell.Cmd{
Name: "download",
Help: "下载文件 download 远程文件 本地目录(为空本地执行目录)",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 && len(c.Args) != 2 {
c.Println("参数错误")
return
}
pwd := fileShell.Get("pwd").(string)
n := c.Get("node").(*node)
file := c.Args[0]
file = strings.ReplaceAll(file, "\\", "/")
if strings.Contains(file, ":/") || file[0] == '/' {
pwd = file
} else {
pwd += "/" + file
}
i := strings.LastIndex(pwd, "/")
if i == -1 {
i = 0
}
filename := pwd[i+1:]
dir := pwd[:i]
dir = strings.TrimRight(realpath(dir), "/") + "/"
mydir, err := os.Getwd()
local := "./" + filename
if err == nil {
local = mydir + "/" + filename
}
if len(c.Args) == 2 {
s, err := os.Stat(c.Args[1])
if err == nil {
if s.IsDir() {
local = strings.TrimRight(c.Args[1], "/") + "/" + filename
} else {
local = c.Args[1]
}
} else {
local = c.Args[1]
}
}
pwd = dir + filename
result := make(chan interface{}, 999)
id := n.storeQuery(result)
defer n.deleteQuery(id)
b := []byte(pwd)
b = append(b, []byte{0, 0, 0, 0, 0, 0, 0, 0, 0}...)
total := int64(-1)
be := len(pwd) + 1
b[be] = byte(total)
b[be+1] = byte(total >> 8)
b[be+2] = byte(total >> 16)
b[be+3] = byte(total >> 24)
b[be+4] = byte(total >> 32)
b[be+5] = byte(total >> 40)
b[be+6] = byte(total >> 48)
b[be+7] = byte(total >> 56)
n.Write(common.CMD_DOWNLOAD, id, b)
c.ProgressBar().Start()
size := int64(0)
resnum := 0
total = 0
var f *os.File
for {
select {
case res := <-result:
switch v := res.(type) {
case error:
c.ProgressBar().Stop()
c.Println("下载失败", res)
return
case int64:
var err error
size = v
f, err = os.OpenFile(local, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0666)
if err != nil {
c.Println("本地文件 ", local, "写入失败", err.Error())
return
}
defer f.Close()
case []byte:
if f == nil {
c.Println("本地文件 ", local, "不可写入")
return
}
resnum++
num, err := f.Write(v)
if err != nil {
c.Println("本地文件 ", local, "写入失败", err.Error())
return
}
if num != len(v) {
c.Println("本地文件 ", local, "写入失败,写入量不符")
return
}
total += int64(num)
i := total * 100 / size
c.ProgressBar().Suffix(fmt.Sprint(" ", i, "%"))
c.ProgressBar().Progress(int(i))
if total == size {
c.ProgressBar().Stop()
c.Println(c.Args[0], "下载成功 文件保存到", local)
return
}
if resnum == 10 {
resnum -= 10
b[be] = byte(total)
b[be+1] = byte(total >> 8)
b[be+2] = byte(total >> 16)
b[be+3] = byte(total >> 24)
b[be+4] = byte(total >> 32)
b[be+5] = byte(total >> 40)
b[be+6] = byte(total >> 48)
b[be+7] = byte(total >> 56)
n.Write(common.CMD_DOWNLOAD, id, b)
}
default:
c.Println("协议错误")
return
}
case <-time.After(common.CMD_TIMEOUT):
c.ProgressBar().Stop()
c.Println("upload time out")
return
}
}
},
})
remoteShell.AddCmd(&ishell.Cmd{
Name: "new",
Help: "与一个或者多个节点连接,使用方法 new ip:端口 多个地址以,间隔 如1080 127.0.0.1:1081,127.0.0.1:1082",
Func: func(c *ishell.Context) {
if len(c.Args) != 1 {
c.Println("参数错误,使用方法 connect ip:端口")
return
}
for _, addr := range strings.Split(c.Args[0], ",") {
_, err := connectNew(addr)
if err != nil {
c.Println("连接", addr, "失败", err)
return
}
}
},
})
remoteShell.AddCmd(&ishell.Cmd{
Name: "shell",
Help: "反弹shell 使用方法 shell id/uuid 启动参数 ,启动参数可为空,win默认启动cmd,linux默认启动bash 如 shell 1 powershell 。 shell 1 zsh",
Func: func(c *ishell.Context) {
if len(c.Args) < 1 {
c.Println("参数错误,例子 shell 1 powershell")
return
}
param := ""
if len(c.Args) == 2 {
param = c.Args[1]
}
n, _ := getNode(c.Args[0])
if n == nil {
c.Println("无法连接节点", c.Args[0])
return
}
res := make(chan interface{}, 999)
id := n.storeQuery(res)
defer n.deleteQuery(id)
p := StartCmdParam{
Param: param,
Size: common.GetSize(),
}
b, _ := json.Marshal(p)
n.Write(common.CMD_SHELL, id, b)
s := &remoteCmd{
cmd: nil,
stdin: nil,
inChan: make(chan []byte, 999),
translate: func(in []byte) ([]byte, error) { return in, nil },
pong: time.Now().Unix(),
}
select {
case i := <-res:
switch v := i.(type) {
case error:
c.Println("启动shell失败,错误", v.Error())
case []byte:
data := v
s.id = uint32(data[0]) | uint32(data[1])<<8 | uint32(data[2])<<16 | uint32(data[3])<<24
switch data[4] {
case 0: //windows
if string(data[len(data)-6:]) == string([]byte{32, 57, 51, 54, 13, 10}) { //活动代码页: 936
//gbk转utf8
s.translate = func(in []byte) ([]byte, error) {
reader := transform.NewReader(bytes.NewReader(in), simplifiedchinese.GBK.NewDecoder())
d, e := ioutil.ReadAll(reader)
if e != nil {
return nil, e
}
return d, nil
}
}
case 1: //linux
if runtime.GOOS == "windows" {
if !common.EnableTermVt {
s.translate = func(in []byte) ([]byte, error) {
if in[0] == 27 {
r, _ := regexp2.Compile(`\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])`, 0)
res, _ := r.Replace(string(in), "", 0, -1)
return []byte(res), nil
}
return in, nil
}
}
}
}
atomic.CompareAndSwapInt32(&s.cmdStatus, 0, 1)
}
case <-time.After(common.CMD_TIMEOUT):
c.Println("启动shell失败,超时")
return
}
n.shellMap.Store(s.id, s)
r, _ := readline.NewEx(&readline.Config{FuncIsTerminal: func() bool { return false }, ForcePrint: true})
defer func() {
n.shellMap.Delete(s.id)
atomic.StoreInt32(&s.cmdStatus, -1)
c.Println("请按回车键退出")
r.Close()
}()
go func() {
for {
switch s.cmdStatus {
case 1:
input, err := r.ReadlineEx()
if err != nil {
if err != readline.ErrInterrupt {
res <- err
return
}
if s.cmdStatus == 1 {
n.Write(common.CMD_SHELL_DATA, s.id, []byte{03})
}
}
if s.cmdStatus == 1 {
n.Write(common.CMD_SHELL_DATA, s.id, []byte(input+"\n"))
}
case 0:
time.Sleep(time.Millisecond * 100)
case -1:
return
}
}
}()
tick := time.NewTicker(common.CMD_TIMEOUT / 2)
for {
select {
case b := <-s.inChan:
s.pong = time.Now().Unix()
if len(b) > 0 {
b, err := s.translate(b)
if err != nil {
c.Println("shell 运行失败", err)
return
}
fmt.Print(string(b))
}
case v := <-res:
if err, ok := v.(error); ok {
if err.Error() != "退出shell" {
c.Println("运行shell", param, "失败", err)
}
} else {
c.Println("无法处理消息", v)
}
return
case <-tick.C:
s.ping = time.Now().Unix()
if s.ping-s.pong > int64(common.CMD_TIMEOUT/time.Second) {
c.Println("shell time out")
return
}
n.Write(common.CMD_SHELL_DATA, s.id, nil)
}
}
},
})
rootCli.AddCmd(&ishell.Cmd{
Name: "remoteshell",
Help: "远程shell",
Func: func(c *ishell.Context) {
remoteShell.Run()
},
})
}
// 打印节点
func printNodes(c *ishell.Context) {
l := clientLock.RLock()
defer l.RUnlock()
var list []*node
for _, n := range nodeMap {
list = append(list, n)
}
orderNode(list)
c.Println("ID UUID HostName GOOS IP listenIP")
c.Println("-----------------------------------------------------------------------------------------------------------------------------")
for k, n := range list {
n.id = k + 1
hostname := bytes.Repeat([]byte(" "), 22)
copy(hostname, n.hostName)
ip := bytes.Repeat([]byte(" "), 23)
if n.uuid == currentNode.uuid {
copy(ip, "(localhost)"+":"+strconv.Itoa(n.port))
} else {
copy(ip, n.addr+":"+strconv.Itoa(n.port))
}
var s []string
for _, ip := range n.mainIp {
if ip != "" {
s = append(s, ip+":"+strconv.Itoa(n.port))
}
}
listenip := strings.Join(s, ",")
goos := bytes.Repeat([]byte(" "), 11)
copy(goos, n.goos)
c.Printf("%2d %s %s %s %s %s\n", n.id, n.uuid, hostname, goos, ip, listenip)
}
}
func realpath(path string) string {
path_s := strings.Split(path, "/")
realpath := []string{}
if len(path_s) == 0 {
return "error"
}
for _, value := range path_s {
if value == ".." {
k := len(realpath)
kk := k - 1
realpath = append(realpath[:kk], realpath[k:]...)
} else {
realpath = append(realpath, value)
}
}
return strings.Join(realpath, "/")
}
func printConn() {
connMap.Range(func(key, value interface{}) bool {
fmt.Println(key)
return true
})
}
func getNode(arg string) (*node, error) {
l := clientLock.RLock()
id, err := strconv.Atoi(arg)
if err == nil {
for _, n := range nodeMap {
if n.id == id && n.uuid != currentNode.uuid {
l.RUnlock()
return n, nil
}
}
} else {
if v, ok := nodeMap[arg]; ok && v.uuid != currentNode.uuid {
l.RUnlock()
return v, nil
}
}
l.RUnlock()
return connectNew(arg)
}
func getNodeWithCurrentNode(arg string) (*node, error) {
l := clientLock.RLock()
id, err := strconv.Atoi(arg)
if err == nil {
for _, n := range nodeMap {
if n.id == id {
l.RUnlock()
return n, nil
}
}
} else {
if v, ok := nodeMap[arg]; ok {
l.RUnlock()
return v, nil
}
}
l.RUnlock()
return connectNew(arg)
}