websocket用于二进制数据传输&解码 [英] websocket for binary transfer of data & decode
问题描述
我正在阅读规范和许多关于websockets使用的例子。几乎所有人都使用websockets讨论UTF-8或ascii消息传输。
I was reading through the specification and many examples about usage of websockets. Almost all of them talk about UTF-8 or ascii message transfer using websockets.
最新的Hybi websocket规范要求支持二进制传输。 hybi规范中的REQ 6
The latest Hybi websocket spec requested support for binary transfer. REQ 6 in hybi spec
另外，我在某处看到chrome支持hybi。但最新版Chrome 7.0仅在pywebsocket中选择 draft-hixie 时有效配置。
Also i read somewhere that chrome supports hybi. But latest release Chrome 7.0 works only when draft-hixie is selected in pywebsocket config.
是否有任何浏览器支持hybi规范？即使它是dev，也没关系。
Does any browser have support for hybi spec? Even if it is dev, its ok.
推荐答案
在非UTF-8（即二进制）编码之前可能还需要一段时间WebSockets支持。
It may be a while before non-UTF-8 (i.e. binary) encoding is supported in WebSockets.
我建议在客户端和服务器上使用base64编码/解码。所有支持WebSockets的浏览器都有window.atob（base64 decode）和window.btoa（base64编码）。你可能编写WebSockets服务器的大多数语言都有base64库（即python中的base64模块）。
I suggest using base64 encode/decode on the client and server. All browsers with WebSockets support have window.atob (base64 decode) and window.btoa (base64 encode). Most languages you might write a WebSockets server in have base64 libraries (i.e. base64 module in python).
如果你想传输二进制数据，你可能会对wsproxy感兴趣使用 noVNC ，这是一个基于Web的VNC客户端。 wsproxy（有一个C和python版本）是一个通用TCP套接字代理的WebSockets。它base64对来自浏览器的所有流量进行编码/解码。您可以使用它从支持WebSockets的浏览器连接到任何类型的TCP端口。
If you are wanting to transfer binary data you might be interesting in wsproxy included with noVNC which is a web based VNC client. wsproxy (there is a C and python version) is a WebSockets to generic TCP sockets proxy. It base64 encodes/decodes all traffic to/from the browser. You can use it to connect from a WebSockets capable browser to any type of TCP port.
注意，noVNC具有base64编码/解码的Javascript实现，因为信不信由你，Javascript版本比atob / btoa略快。
Note, noVNC has a Javascript implementation of base64 encode/decode because belief it or not, the Javascript version is slightly faster than atob/btoa.
免责声明：我创建了noVNC。
Disclaimer: I created noVNC.
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