[Kolab-devel] More guam fixes in 0.9.7 (with eimap 0.4.2)

[Daniel Hoffend]

Hi Christian

Thanks for your work!

I can confirm that using the patch to support pipelined commands the
issue with not beening able to to download attachments has been solved.

guam 0.9.7 and eimap 0.4.1 are already in Kolab:Winterfell and Kolab:16

After comparing your personal 0.4.2 package and the Winterfell 0.4.1
version I saw only one missing commit. Due to Debian version pinning I
couldn't directly install your eimap version, so I created my own
guam+eimap packages and tested them to confirm they're working. (My own
mailserver runs them now)

http://obs.kolabsys.com/repositories/home:/dhoffend:/branches:/Kolab:/Winterfell/Debian_10.0/amd64/

As soon as the patch lands in master we could updated the packages (with
with a patch or directly with a new version number) and push them forward.


--
Regards
Daniel

Am 16.04.2020 um 11:53 schrieb Christian Mollekopf:
> Hi,
> 
> Last week I spent some time brushing up my erlang and doing some guam
> development.
> 
> There is now a test-suite that should cover all the patches that have
> accumulated over the past years and have been integrated into 0.9.6
> 
> I then also looked into some issues with clients that pipeline commands
> (that means they just send multiple commands at once without waiting for
> a reply from the server, which can be valid depending on the commands).
> 
> This lead to the following changes lined up for guam 0.9.7 and eimap 0.4.2:
> * Commands coming from the client are now processed line by line, so
> pipelined commands that end up in the same network packet are processed
> correctly.
> * The same would have to happen with replies coming from the server,
> which lead to a patch for eimap (lined up for 0.4.2), that doesn't quite
> do that correctly, but fixes the one bug that I found related to this
> (the getmetadata processing necessary for filtering of groupware folders).
> 
> This also allowed me to remove some odd workarounds that we started to
> accumulate in various places, while hopefully not re-introducing any
> failures (since the relevant scenarios are covered by tests now).
> 
> Another significant change is that I have enabled two debug messages
> logging all traffic (after terminating ssl and decompressing) from
> client and server, which means the "debug" level which is not enabled by
> default will be a *lot* noisier, but also finally useful for collecting
> the necessary info that we require for reproducing issues. I think this
> could be further enhanced with a logging feature called tracing,
> allowing to collect output from only certain messages in a separate file.
> 
> Guam 0.9.7 should already be in winterfell, for eimap 0.4.2 you can find
> packages here:
> http://obs.kolabsys.com/repositories/home:/mollekopf:/branches:/Kolab:/Winterfell/
> 
> 
> Let me know if you run into new or further issues.
> 
> Cheers,
> Christian
> 
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