是否可以连接使用JavaScript通过SSH？ [英] Is it possible to connect to SSH using JavaScript?

问题描述

我知道有使用的WebSockets（http://novnc.com）VNC的实现，但是，仍然需要一台服务器。我期待创建一个简单的客户端JavaScript只（不闪光）连接到端口上运行SSH。我猜的WebSockets是去，因为它的TCP的唯一途径。例如任何code？任何其他方式？

I know there is an implementation of VNC using WebSockets (http://novnc.com) but that still requires a server. I am looking to create a simple client-side JavaScript only (no Flash) connection to a port running SSH. I am guessing WebSockets is the only way to go since it does TCP. Any example code? Any other way?

推荐答案

对不起，鉴于你的约束（客户端只有JavaScript），是没有办法连接到一个普通的老SSH服务器。

Sorry, given your constraints (client-side Javascript only), there is no way to connect to a plain old SSH server.

的WebSockets不是普通的TCP。这是一个框架协议，在客户端和服务器，包括原产地政策之间的HTTP的握手。

WebSockets is not plain TCP. It's a framed protocol with a HTTP-like handshake between the client and server that includes origin policy.

Flash可以做出简单的TCP连接，但它也有原产地政策执行。它这样做的方式是通过端口843到同一台服务器的连接，并要求包含同源策略一个特殊的XML文件。
如果你愿意放松限制略微这样你愿意到一个服务器（任何服务器）或客户端，那么你可以做你想要做的运行一个通用的WebSockets到TCP代理。 noVNC包括一个C和Python的WebSockets到TCP代理：<一href=\"http://github.com/kanaka/noVNC/tree/master/utils/\">http://github.com/kanaka/noVNC/tree/master/utils/.

Flash can make plain TCP connections, but it also has origin policy enforcement. The way it does this is by making a connection to the same server on port 843 and asking for a special XML file that contains the origin policy. If you are willing to relax your constraints slightly such that you are willing to run a generic WebSockets to TCP proxy either on a server (any server) or on the client then you can do what you are wanting to do. noVNC includes a C and python WebSockets to TCP proxy: http://github.com/kanaka/noVNC/tree/master/utils/.

其他的信息可能对您有用：

Other info you might find useful:

• 目前的WebSocket草案：<一href=\"http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76\">http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76

中运行的Flash策略服务器（Linux / UNIX的用socat）这里描述的简单的（不安全）的方式：<一href=\"http://github.com/kanaka/noVNC/blob/master/docs/flash_policy.txt\">http://github.com/kanaka/noVNC/blob/master/docs/flash_policy.txt

Simple (insecure) way of running a flash policy server (Linux/UNIX with socat) is described here: http://github.com/kanaka/noVNC/blob/master/docs/flash_policy.txt

更​​多信息：<一href=\"http://$c$c.google.com/p/doctype/wiki/ArticleFlashSecurity\">http://$c$c.google.com/p/doctype/wiki/ArticleFlashSecurity

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