Re: Extending squid

Alex Rousskov wrote:
> On 03/18/2010 09:40 PM, Amos Jeffries wrote:
>> noor nashid wrote:
>
>>> And thirdly I want to download a whole page in Squid, and then I want
>>> to transfer that to the other side (i.e. to the browser/client) using
>>> a single HTTP pipelined connection. Suppose we are browsing
>>> http://www.squid-cache.org/ . Here I shall gather all objects of the
>>> website and then I shall respond back to the client using a single TCP
>>> connection. The point here is not open a TCP connection for each object.
>> As I understand it pipelining in HTTP is something different.
>>
>> Persistent connections (what you describe) are already available in
>> Squid for both single TCP link to server and to client. Most browsers
>> attempt to use them. As does Squid. The handicap appears to be web
>> Servers not adding Content-Length information to all responses.
>>
>> I believe this server problem can best be resolved by doing
>> chunked-encoding of the unknown length objects to HTTP/1.1 clients.
>> Removing the need to close the client connection when the object finishes.
>>
>> Squid is about to start sending HTTP/1.1 responses to clients now. Which
>> removes the final blocking obstacle to doing chunked encoding inside Squid.
>>
>> Chunked transfers was a measurement factory project. Before starting it
>> would be best to contact Alex and see if they already have the encoding
>> part underway or not.
>
> I am not sure what you mean by "chunked transfers" in the context of
> this email. Squid already supports chunked bodies on both client and
> server sides. The only limitation that chunked requests are still
> buffered whole before being processed. There is a piece of commented out
> code that does not buffer chunked requests. It can be polished and
> enabled now since we started talking HTTP/1.1 to servers (but I think we
> still need to figure out how not to send chunked requests to HTTP/1.0
> servers).
>

Decoding chunks yes, done.

Encoding of 1.0 requests is what he is looking towards working on. I
thought you might have some plans there based on the comments you added
to the sources with decoding.

Amos

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