[squid-users] websockets through Squid

[Christos Tsantilas]

Hi Vieri,

I attached a patch to bug5084 which may help us to debug the issue:
    https://bugs.squid-cache.org/attachment.cgi?id=3772

The patch is for squid-v5 and produces debug messages at debug level 1.

Regards,
    Christos




On 17/10/20 11:36 μ.μ., Alex Rousskov wrote:
> On 10/16/20 11:58 AM, Vieri wrote:
> 
>> I pinpointed one particular request that's failing:
>>
>> 2020/10/16 16:56:37.250 kid1| 85,2| client_side_request.cc(745) clientAccessCheckDone: The request GET https://ed1lncb62601.webex.com/direct?type=websocket&dtype=binary&rand=1602860196950&uuidtag=G7609603-81A2-4B8D-A1C0-C379CC9B12G9&gatewayip=PUB_IPv4_ADDR_2 is ALLOWED; last ACL checked: all
>>
>> It is in this log:
>>
>> https://drive.google.com/file/d/1OrB42Cvom2PNmV-dnfLVrnMY5IhJkcpS/view?usp=sharing
> 
> Thank you, that helped a lot!
> 
> I see that Squid decides that the client has closed the connection.
> Squid propagates that connection closure to the server. Due to a Squid
> bug (or my misunderstanding), cache.log does not contain enough details
> to tell whether the client actually closed the connection in this case
> and, if it did, whether it did so nicely or due to some TLS error.
> 
> I filed bug #5084 in hope to improve handling of this case. At the very
> least, the log should categorize the closure, but it is also possible
> that the client did not actually close the connection, and Squid is
> completely mishandling the situation (in addition to being silent about
> it). See https://bugs.squid-cache.org/show_bug.cgi?id=5084 for details.
> 
> I cannot volunteer to work on this further right now, but I hope this
> triage will help another volunteer (or a paid contractor) to make
> further progress.
> 
> https://wiki.squid-cache.org/SquidFaq/AboutSquid#How_to_add_a_new_Squid_feature.2C_enhance.2C_of_fix_something.3F
> 
> Alex.
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