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websocket extension bits

原文 2012-11-22 23:47:43 9 1 python/ http/ websocket

I'm writing a websocket server implementation in Python, and I'm a little lost on how extension negotiation works. There is of course the Sec-WebSocket-Extensions header available for the client to request extensions and for the server to allow / reject them. It's the relationship of these extensions to the RSV1, RSV2, and RSV3 bits that somewhat confuses me.

The deflate-frame extension uses RSV1. I know of no other extensions. If / when they are created, how will they map to RSV1, RSV2, and RSV3? And why is this information transmitted with every WebSocket frame?

I've probably been negligent in not poring over the RFC with a magnifying glass, but I can't seem to find anything that explains this.

1 answers

WebSocket extensions are specified in RFCs different from the WebSocket protocol itself (RFC6455).

The WebSocket working group has "unadopted" the per-frame compression instead of per-message compression:

Extracting/Shifting bits in python for websocket RFC 6455

Combinaison of 1, 2, 3, 4 bits as 0 in 5bits

Writing bits as bits to a file

Heroku websocket to websocket communication

Convert from 8 bits array to 5 bits array

Websocket Threading

Autobahn websocket

Websocket python

Websocket will not function

Websocket Disconnection

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Related Question Extracting/Shifting bits in python for websocket RFC 6455 Combinaison of 1, 2, 3, 4 bits as 0 in 5bits Writing bits as bits to a file Heroku websocket to websocket communication Convert from 8 bits array to 5 bits array Websocket Threading Autobahn websocket Websocket python Websocket will not function Websocket Disconnection

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websocket extension bits

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solution1 2 ACCPTED 2012-11-23 12:07:05

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2 ACCPTED 2012-11-23 12:07:05