wss://ssmmessages.ap-south-1.amazonaws.com/v1/data-channel/sessionidhere?role=publish_subscribe
我无法共享的“ SessionIdhere”的实际会话ID。
我想使用
xterm.js在Web上打开终端。我读过Xterm.js可以连接到WebSocket URL,发送消息并接收输出。
我的JavaScript代码在这里:
<!doctype html>
<html>
<head>
<link href="~/xterm.css" rel="stylesheet" />
<script src="~/Scripts/jquery-3.4.1.js"></script>
<script src="~/Scripts/bootstrap.js"></script>
<script src="~/xterm.js"></script>
</head>
<body>
<div id="terminal"></div>
<script type="text/javascript">
var term = new Terminal({
cursorBlink: "block"
});
var curr_line = "";
var entries = [];
term.open(document.getElementById('terminal'));
const ws = new WebSocket("wss://ssmmessages.ap-south-1.amazonaws.com/v1/data-channel/sessionid?role=publish_subscribe?token=tokenvalue");
var curr_line = "";
var entries = [];
term.write("web shell $ ");
term.prompt = () => {
if (curr_line) {
let data = {
method: "command", command: curr_line
}
ws.send(JSON.stringify(data));
}
};
term.prompt();
ws.onopen = function (e) {
alert("[open] Connection established");
alert("Sending to server");
var enc = new TextEncoder("utf-8"); // always utf-8
// console.log(enc.encode("This is a string converted to a Uint8Array"));
var data = "ls";
console.log(enc.encode(data));
alert(enc.encode(data));
ws.send(enc.encode(data));
alert(JSON.stringify(e));
};
ws.onclose = function (event) {
if (event.wasClean) {
alert(`[close] Connection closed cleanly, code=${event.code} reason=${event.reason}`);
} else {
// e.g. server process killed or network down
// event.code is usually 1006 in this case
alert('[close] Connection died');
}
};
ws.onerror = function (error) {
alert(`[error] ${error.message}`);
};
// Receive data from socket
ws.onmessage = msg => {
alert(data);
term.write("\r\n" + JSON.parse(msg.data).data);
curr_line = "";
};
term.on("key", function (key, ev) {
//Enter
if (ev.keyCode === 13) {
if (curr_line) {
entries.push(curr_line);
term.write("\r\n");
term.prompt();
}
} else if (ev.keyCode === 8) {
// Backspace
if (curr_line) {
curr_line = curr_line.slice(0, curr_line.length - 1);
term.write("\b \b");
}
} else {
curr_line += key;
term.write(key);
}
});
// paste value
term.on("paste", function (data) {
curr_line += data;
term.write(data);
});
</script>
</body>
</html>
现在,会议正在打开,我正在对建立的连接保持警惕。这是成功的连接,但是每当我尝试发送命令时,就会说“打开数据频道的请求不包含令牌”,即将关闭连接。我尝试以3种方式发送命令。 首先是:
ws.send("ls")
秒:
let data = {
method: "command", command: curr_line
}
ws.send(JSON.stringify(data));
但是面临相同的错误,即打开数据通道的请求不包含令牌,连接已死第三:
var enc = new TextEncoder("utf-8");
var data = "ls";
ws.send(enc.encode(data));
对于第三,我没有任何错误,但也没有输出...有人可以帮忙吗?
AWS Session Manager使用的协议包括以下内容:
在流URL上开设Websocket连接
提供由以下JSON组成的身份验证请求:
{
"MessageSchemaVersion": "1.0",
"RequestId": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
"TokenValue": "<YOUR-TOKEN-VALUE>"
}
从这一刻,协议不再是JSON。它是在官方
git clone
[email protected]:bertrandmartel/aws-ssm-session.git
cd aws-ssm-session
npm i
npm run build
node scripts/generate-session.js
给你:
{
SessionId: 'xxxxxx-xxxxxxxxxxxxxx',
TokenValue: 'YOUR_TOKEN',
StreamUrl: 'wss://ssmmessages.eu-west-3.amazonaws.com/v1/data-channel/user-xxxxxxxxxxxxxx?role=publish_subscribe'
}
then提供示例应用程序:
npm install http-server -g
http-server -a localhost -p 3000
togo到http:// localhost:3000/test/web,输入Websocket URI和令牌:
浏览器的sample代码:
import { ssm } from "ssm-session";
var socket;
var terminal;
const termOptions = {
rows: 34,
cols: 197
};
function startSession(){
var tokenValue = document.getElementById("tokenValue").value;
var websocketStreamURL = document.getElementById("websocketStreamURL").value;
socket = new WebSocket(websocketStreamURL);
socket.binaryType = "arraybuffer";
initTerminal()
socket.addEventListener('open', function (event) {
ssm.init(socket, {
token: tokenValue,
termOptions: termOptions
});
});
socket.addEventListener('close', function (event) {
console.log("Websocket closed")
});
socket.addEventListener('message', function (event) {
var agentMessage = ssm.decode(event.data);
//console.log(agentMessage);
ssm.sendACK(socket, agentMessage);
if (agentMessage.payloadType === 1){
terminal.write(agentMessage.payload)
} else if (agentMessage.payloadType === 17){
ssm.sendInitMessage(socket, termOptions);
}
});
}
function stopSession(){
if (socket){
socket.close();
}
terminal.dispose()
}
function initTerminal() {
terminal = new window.Terminal(termOptions);
terminal.open(document.getElementById('terminal'));
terminal.onKey(e => {
ssm.sendText(socket, e.key);
});
terminal.on('paste', function(data) {
ssm.sendText(socket, data);
});
}
https://github.com/bertrandmartel/aws-ssm-session
和ran中运行此代码:NPM安装http -server -g http -server -a localhost -p 3000 但是,我无法访问http:// localhost:3000/test/web.有人可以支持我吗?