(resolved) Re: [libreoffice-users] libreoffice grabs network port

On 22/04/2022 15:38, Dave Howorth wrote:
....
> What investigation have you done? Why do you think the problem is with
> LO rather than with mojolicious or somewhere in between?
>
> Also, what is runcmd()?

Sorry, should have said it's a wrapper for perl's open3() (itself a 
wrapper for system() ) which runs the given command. But see below.
.
> Steps I would be thinking of trying:
> (1) add debugging prints to the mojolicious code so you can see exactly
> what arguments are passed on each occasion
> (2) for some case where the problem occurs run LO directly from the
> command line with the same arguments and see if the problem occurs


Thanks for the reply. I've been banging my head against a wall, because 
all of mojolicious, perl's IPC and LO are to varying degrees unfamiliar. 
I certainly mis-understood what I was seeing, processes running LO and 
with the web network port listening: it's actually correct and harmless.

The problem is now resolved, and at the root was related to running the 
program detached as a daemon. I had a web server running LO internally, 
which ran correctly from a terminal; ran correctly when detached with 
magic using () and shell redirects; but which failed when run "properly" 
with freebsd's 'daemon' command.

Obvious in hindsight, the issue was that the daemon, running as user 
www, didn't have access to a writeable home directory, so LO couldn't 
run because it needs a rather large file tree there. That was compounded 
with my misunderstanding of perl's open3() error handling.

I'm now using the -env:UserInstallation=XXXXXX option to give LO a 
temporary place to put its bits and bobs, and all - finally - seems to 
function. At least, LO runs and does the conversions. I do wonder why 
there's an oosplash process started when I'm using --nologo and 
--headless though! It also creates more soffice.bin processes than I'd 
expect, but they seem to tidy themselves away eventually.

I'm not sure why I had so much trouble here, compared to a couple of 
years ago, when I was running LO from apache/php without particular bother.

All's well that end's well, I guess. Mojolicious has a steep learning 
curve, but is much easier and cleaner to use than php for this job. LO 
works, albeit slowly -- ~20 seconds to do the .odt->.doc conversion on a 
pi4.

Again, thanks.




--
Mike Scott
Harlow, Essex, England

--
Mike Scott (unet2 <at> [deletethis] scottsonline.org.uk)
Harlow Essex England
"The only way is Brexit" -- anon.

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