[horde] Issue on fresh install with translation and carddav

[hwpoubeline at free.fr]

Hi All,

I hope that somebody can help me trigger this issue with a brand new 
server.

I have installed a brand new Debian Buster server the same way I have my 
old Debian Jessie server with Postfix/Dovecot/Apache2/MariaDB.
I would like to transfer all my email system from the old server to the 
new one.
I have installed Horde using Pear repository on the new one like the old 
one.

When I get to the login page, the fields displayed are always Username 
and Password and never get translated as on my old server. Even after 
the login page all the translation process does not work.
I have worked with Michael Rubinski who helped me get some trace from 
the Horde system and the translation seems to gets blocked with the 
validation process.

I have installed locally using 'dpkg-reconfigure locales' the en_US, 
es_ES, es_CA languages all in UTF-8 and I never got the translation for 
all of them, I still get an error with the validation of the language 
which is throwing back to the system default language 'fr_FR' but the 
strings displayed at the login page are still 'Username' and 'Password' 
even if the 'Language' box displays 'Français'. The same when the 
language box displays 'Català' or 'Español' I get english titles.

I have checked if it was a debian problem but when installing Roundcube 
Webmail, all the translation is fine.
I also have another web site with Wordpress which is fine also for 
translation.
So for me it is only one thing which is not working with Horde but I 
can't figure out what. I have verified the debian packages and the Horde 
requirements and compared them with the old server and all seems to be 
equal.
On the Debian 9 I have PHP 7.4 (upgraded from 5.x to 7.1, 7.2 and 7.3) 
and on the Debian 10 I have PHP 7.3.
The Horde server is 5.2.22 with all the latest updates got from Pear.

I have also followed the 
'https://www.horde.org/apps/horde/docs/TRANSLATIONS' page and the 
results where:

1.2.1:

> locale -a

C
C.UTF-8
fr_FR.utf8
POSIX

1.2.2: Yes, the files are stored correctly

1.2.3:

> strings /bin/tar | grep memory
_obstack_memory_used
memory exhausted
> gettext tar "memory exhausted"
mémoire épuisée

> (LANG=fr_FR; LANGUAGE=fr_FR; LC_MESSAGES=fr_FR; gettext tar "memory 
> exhausted" )

bash: warning :setlocale : LC_MESSAGES : impossible to change lang 
parameter (fr_FR) : no such file or directory

memory exhausted

> (LANG=fr_FR.utf8; LANGUAGE=fr_FR.utf8; LC_MESSAGES=fr_FR.utf8; gettext 
> tar "memory exhausted" )
mémoire épuisée

1.2.4:

> ( TEXTDOMAINDIR=/var/www/horde/locale LANG=fr_FR.utf8 
> LANGUAGE=fr_FR.utf8 LC_MESSAGES=fr_FR.utf8 gettext horde "Calendar" )
Agenda

I have created the /var/www/horde/langtest.php file as following :

<?php

setlocale(LC_MESSAGES, 'fr_FR.UTF-8');
putenv('LANG=fr_FR.UTF-8');
putenv('LANGUAGE=fr_FR.UTF-8');
// use the tar test.
echo dgettext('tar', 'memory exhausted');
echo '<br />';

// Specify location of translation tables
bindtextdomain('horde', './locale');

// Choose domain
textdomain('horde');

// Print the already tested message
echo _("Calendar");
echo '<br />';

// this should print the same.
echo dgettext('horde', 'Calendar');

?>

And the result is:

memory exhausted
Calendar
Calendar



I have also found a new issue with the address book when I want to get 
access to the Carddav URL which throws this issue:
Horde::Fatal Error
A fatal error has occurred
Class 'Sabre\DAVACL\PrincipalBackend\AbstractBackend' not found
Details have been logged for the administrator.

I have browsed all the mailing list history and I could find a thread 
about this but it was with a GIT installation process and without any 
resolution.

So, If somebody has a clue on any issues related here, you are REALLY 
VERY welcome as this is one month or so that I cannot migrate users to 
the new server due to the translation problem firstly, but also 
regarding the second issue with the Carddav (just checked and same issue 
with the Caldav).

Thanks for any hint you can give me to fix these issues.

Regards,
Laurent