# README
说明
使用 github.com/gorilla/websocket
与 golang.org/x/crypto/ssh
实现的 webssh,支持颜色以及自动补全
参考:https://github.com/myml/webssh ,在原项目的基础上新增 publickey 登陆、zmodem 上传下载(支持禁用 sz 或者 rz)
服务器端文档
快速开始
...
import (
...
"github.com/gorilla/websocket"
"github.com/leffss/gowebssh"
)
...
id := r.Header.Get("Sec-WebSocket-Key")
webssh := gowebssh.NewWebSSH()
webssh.SetTerm(gowebssh.TermLinux)
webssh.SetBuffSize(8192)
webssh.SetId(id)
webssh.SetConnTimeOut(15 * time.Second)
webssh.DisableSZ()
//webssh.DisableRZ()
...
upGrader := websocket.Upgrader{
CheckOrigin: func(r *http.Request) bool {
return true
},
//Subprotocols: []string{r.Header.Get("Sec-WebSocket-Protocol")},
Subprotocols: []string{"webssh"},
ReadBufferSize: 8192,
WriteBufferSize: 8192,
}
ws, _ := upGrader.Upgrade(w, r, nil)
webssh.AddWebsocket(ws)
客户端文档
消息类型
type messageType string
const (
messageTypeAddr = "addr"
messageTypeTerm = "term"
messageTypeLogin = "login"
messageTypePassword = "password"
messageTypePublickey = "publickey"
messageTypeStdin = "stdin"
messageTypeStdout = "stdout"
messageTypeStderr = "stderr"
messageTypeResize = "resize"
messageTypeIgnore = "ignore"
messageTypeConsole = "console"
)
type message struct {
Type messageType `json:"type"`
Data []byte `json:"data,omitempty"`
Cols int `json:"cols,omitempty"`
Rows int `json:"rows,omitempty"`
}
消息协议
- 地址
{type:"addr",data:"$addr"}
地址格式: ip:port,例如 192.168.223.111:22 - 登录
{type:"login",data:"$username"}
- 设置 term 终端类型
{type:"term",data:"$term"}
# 可不设置,默认 xterm - 验证
{type:"password",data:"$password"}
or{type:"publickey",data:"$publickey"}
- 窗口大小调整
{type:"resize",cols:40,rows:80}
- 忽略数据流
{type:"ignore",data:"$data"}
# 客户端发送到服务端,服务器忽略,可以用于 zmodem 文件传输记录 - console 数据流
{type:"console",data:"$data"}
# 服务端发送到客户端,客户端显示到 console 控制台的数据, 可以用于 zmodem 文件传输时的 debug 信息 - alert 数据流
{type:"alert",data:"$data"}
# # 服务端发送到客户端的 alert 信息 - 标准流数据
{type:"stdin",data:"$data"}
{type:"stdout",data:"$data"}
{type:"stderr",data:"$data"}
客户端发送 stdin, 接收 stdout, stderr
Data 数据
消息的 data 数据使用 base64 编码传输,JavaScript 的atob & btoa
可用于 base64 编码,但对 utf8 有兼容性问题,
要使用decodeURIComponent & encodeURIComponent
做包裹, 以下是实现
function utf8_to_b64(rawString) {
return btoa(unescape(encodeURIComponent(rawString)));
}
function b64_to_utf8(encodeString) {
return decodeURIComponent(escape(atob(encodeString)));
}
实例
具体实例参考 example
文件夹
预览
# Packages
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# Functions
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WebSSH 构造函数.
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# Constants
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# Variables
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zmodem 取消 \x18\x18\x18\x18\x18\x08\x08\x08\x08\x08.
\r\x8a\x11.
\r\x8a.
**\x18B0.
rz 结束 fmt.Sprintf("%+q", "**\x18B0800000000022d\r\x8a").
rz -e -S fmt.Sprintf("%+q", "**\x18B010000026390f6\r\x8a\x11").
rz -e fmt.Sprintf("%+q", "**\x18B0100000063f694\r\x8a\x11").
rz -S fmt.Sprintf("%+q", "**\x18B0100000223d832\r\x8a\x11").
rz fmt.Sprintf("%+q", "**\x18B0100000023be50\r\x8a\x11").
sz 结束 fmt.Sprintf("%+q", "\r**\x18B0800000000022d\r\x8a")ZModemSZEnd = []byte{13, 42, 42, 24, 66, 48, 56, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 50, 100, 13, 138}.
sz 结束后可能还会发送两个 OO,但是经过测试发现不一定每次都会发送 fmt.Sprintf("%+q", "OO").
sz fmt.Sprintf("%+q", "rz\r**\x18B00000000000000\r\x8a\x11")ZModemSZStart = []byte{13, 42, 42, 24, 66, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 13, 138, 17}.