blocks|key|1900023|text|让我在前面说这样做不是一个好主意。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1900024|但是，您可以生成一个shell，并使用web-sockets或XMLHttpRequests将按键推送到生成的服务器进程。这是一个在windows上运行的工作示例。不幸的是，我还没来得及了解Ctrl%2Bc，但你应该明白它的要旨。|1900025|++require("underscore");

++var+Server+=+{},
++++++express+=+require("express"),
++++++path+=+require("path"),
++++++sys+=+require("sys"),
++++++application_root+=+__dirname;

++global.Server+=+Server;
++Server.root+=+application_root;
++global.app+=+express();

++Server.setup+=+require("./lib/setup.js").setup({
++++//redis:+require("./lib/redis-client").createClient(),
++++app:+app,+
++++//mongoose+:+require("mongoose"),
++++io+:+require("socket.io"),
++++express+:+express,
++++port:+1773,
++++paths+:+{
++++++views+:++path.join(application_root,"app","views"),
++++++root+:+path.join(application_root,"public"),
++++++controllers+:+path.join(application_root,"app","controllers"),
++++++models+:+path.join(application_root,"app","models")
++++}
++});

++var+proc+=+require('child_process'),
++++++cmd;

++app.socket.on('connection',+function(socket)+{
++++if+(!cmd)+{
++++++//console.log('spawning+cmd');
++++++cmd+=+proc.spawn('cmd');

++++++//console.log(cmd?'CMD+started':'CMD+not+started');

++++++if+(cmd.stdout)+{
++++++++//console.log('stdout+present');
++++++++cmd.stdout.on('data',function(data)+{
++++++++++if+(data)+{
++++++++++++//console.log("data:+"%2Bdata);
++++++++++++socket.emit('cmd',+""%2Bdata);
++++++++++}
++++++++});
++++++}
++++++if+(cmd.stderr)+{
++++++++cmd.stderr.on('data',+function(data)+{
++++++++++//console.log('stderr+present');
++++++++++if+(data)+{
++++++++++++socket.emit('cmd',+""%2Bdata);
++++++++++}
++++++++});
++++++}

++++++cmd.on('exit',+function()+{
++++++++//console.log('cmd+exited');
++++++++socket.emit('cmd',+'[CMD+Shutdown]');
++++++++if+(cmd)+{
++++++++++cmd.kill();
++++++++++cmd+=+null;
++++++++}
++++++});
++++}

++++socket.on('sendCmd',+function(data)+{
++++++if+(data+&&+data.buffer)+{
++++++++var+kB+=+data.buffer.replace("\r","\n");
++++++++if+(cmd+&&+cmd.stdin)+{
++++++++++cmd.stdin.write(kB);
++++++++}
++++++}
++++});

++++socket.on('disconnect',+function()+{
++++++console.log('connection+closed');
++++++if+(cmd)+{
++++++++cmd.stdin.end();+//.kill();
++++++++if+(cmd)+{
++++++++++cmd.kill();
++++++++++cmd+=+null;
++++++++}
++++++}
++++});
++});|code-block|syntax|javascript|1900026|编辑:实际上，这是工作示例的一部分。它缺少捕获击键并将其发送到服务器的客户端。但是，它应该给你一个大概的概念。|1900027|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Let me prefix this by saying it is NOT a good idea to do this.

But, You can spawn a shell and use web-sockets or XMLHttpRequests to push keypresses to the spawned server process. Here's a working example of one that runs on windows. Unfortunately, I didn't get around to hooking up / figuring out Ctrl+c. But, you should get the gist of it.

<pre><code> require("underscore");

 var Server = {},
 express = require("express"),
 path = require("path"),
 sys = require("sys"),
 application_root = __dirname;

 global.Server = Server;
 Server.root = application_root;
 global.app = express();

 Server.setup = require("./lib/setup.js").setup({
 //redis: require("./lib/redis-client").createClient(),
 app: app, 
 //mongoose : require("mongoose"),
 io : require("socket.io"),
 express : express,
 port: 1773,
 paths : {
 views : path.join(application_root,"app","views"),
 root : path.join(application_root,"public"),
 controllers : path.join(application_root,"app","controllers"),
 models : path.join(application_root,"app","models")
 }
 });

 var proc = require('child_process'),
 cmd;

 app.socket.on('connection', function(socket) {
 if (!cmd) {
 //console.log('spawning cmd');
 cmd = proc.spawn('cmd');

 //console.log(cmd?'CMD started':'CMD not started');

 if (cmd.stdout) {
 //console.log('stdout present');
 cmd.stdout.on('data',function(data) {
 if (data) {
 //console.log("data: "+data);
 socket.emit('cmd', ""+data);
 }
 });
 }
 if (cmd.stderr) {
 cmd.stderr.on('data', function(data) {
 //console.log('stderr present');
 if (data) {
 socket.emit('cmd', ""+data);
 }
 });
 }

 cmd.on('exit', function() {
 //console.log('cmd exited');
 socket.emit('cmd', '[CMD Shutdown]');
 if (cmd) {
 cmd.kill();
 cmd = null;
 }
 });
 }

 socket.on('sendCmd', function(data) {
 if (data &amp;&amp; data.buffer) {
 var kB = data.buffer.replace("\r","\n");
 if (cmd &amp;&amp; cmd.stdin) {
 cmd.stdin.write(kB);
 }
 }
 });

 socket.on('disconnect', function() {
 console.log('connection closed');
 if (cmd) {
 cmd.stdin.end(); //.kill();
 if (cmd) {
 cmd.kill();
 cmd = null;
 }
 }
 });
 });
</code></pre>

Edit: Actually, this is a portion of a working example. It's missing the client side where you capture and send the keystrokes to the server. But, it should give you the general idea.

blocks|key|1686595|text|完整的linux是http://docker.io，其余的是https://github.com/Runnable/dockworker。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1686596|我们不是在模拟终端，而是像Kyle所说的那样，通过websockets复制终端(使用ajax后备)。|1686597|在浏览器中，我们使用的是https://github.com/chjj/term.js，它是从Fabrice的模拟器派生而来的。它处理输出，也处理击键捕获。|1686598|entityMap|0|LINK|mutability|MUTABLE|url|http://docker.io/|1|https://github.com/Runnable/dockworker|2|https://github.com/chjj/term.js^0|9|G|0|U|12|1|0|0|C|V|2|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]|$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]]]

The full linux is <a href="http://docker.io">http://docker.io</a>, the rest is <a href="https://github.com/Runnable/dockworker">https://github.com/Runnable/dockworker</a>

We're not simulating the terminal but as Kyle says, replicating the terminal over websockets (with an ajax fallback).

In the browser we're using <a href="https://github.com/chjj/term.js">https://github.com/chjj/term.js</a> which was derived from Fabrice Bellard's emulator. It handles the output, and also the keystroke capture.

I have read about Fabrice Bellard's linux simulation in browser.

<a href="https://stackoverflow.com/questions/6030407/how-does-linux-emulator-in-javascript-by-fabrice-bellard-work">How does Linux emulator in Javascript by Fabrice Bellard work?</a>

Today I stumbled upon this site, where they are simulating full linux terminal in browser, I am able to run python, perl etc. I know they are running their site on node.js, but I couldn't figure out how they exactly simulating the terminal.

<a href="http://runnable.com/UWRl3KlLuONCAACG/read-files-from-filesystem-in-python" rel="nofollow noreferrer">http://runnable.com/UWRl3KlLuONCAACG/read-files-from-filesystem-in-python</a>

Simulating linux terminal in browser

服务器

我在浏览器中读到了Fabrice的linux模拟。今天我偶然发现了这个网站，他们在浏览器中模拟完整的linux终端，我可以运行python，perl等等。我知道他们在node.js上运行他们的网站，但我不知道他们是如何准确地模拟终端的。

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