[BUG] Uncaught TypeError in POST to server /buildconf.php

[imyller]

fM Version : 4.6.1 fmDNS Version : 6.0.3

In raising this issue, I confirm the following (please check boxes, eg [X]):

• [X] I have read and understood the contributors guide.
• [X] I have checked that the bug-fix I am reporting can be replicated, or that the feature I am suggesting isn't already present.
• [X] I have checked that the issue I'm posting isn't already reported.
• [X] I have checked that the issue I'm posting isn't already solved and no duplicates exist in closed issues and opened issues
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(BUG | ISSUE) Expected Behavior:

Client should be able to call /buildconf.php endpoint at fM server (POST /buildconf.php)

(BUG | ISSUE) Actual Behavior:

• Client: client/facileManager/fmDNS/client.php buildconf fails silently with exit code 1
• Server: POST to server /buildconf.php fails with http/500
• Server: PHP logs error: [php:error] PHP Fatal error: Uncaught TypeError: array_unique(): Argument #1 ($array) must be of type array, null given in /var/www/facileManager/fm-modules/fmDNS/classes/class_buildconf.php:739\nStack trace:\n#0 /var/www/facileManager/fm-modules/fmDNS/classes/class_buildconf.php(739): array_unique()\n#1 /var/www/facileManager/fm-modules/shared/pages/buildconf.php(52): fm_module_buildconf->buildServerConfig()\n#2 /var/www/facileManager/index.php(57): include('...')\n#3 {main}\n thrown in /var/www/facileManager/fm-modules/fmDNS/classes/class_buildconf.php on line 739

(BUG | ISSUE) Steps to reproduce:

• Debian 12 (Bookworm)
• PHP 8.2.7
• Apache 2.4.57
• Fresh install on server
• Fresh install on client
• Register client successfully using http
• Build config for the client -> fails silently in UI (with http/500 and PHP error in logs)

[ValeriiVozniuk]

How are your zones look like in UI?

[WillyXJ]

Looking at the code, this fatal error would only occur if there are no zones to build. A workaround until a fix is released is to build at least one zone.

[imyller]

There are only localhost zones and their reverse provided by default install.

[imyller]

I can confirm that workaround of creating at least one valid zone on fresh install works.

[WillyXJ]

This is now fixed in fmDNS 6.0.4 and later.