When viewing Links, errors can be generated

[anarkia1976]

Hi Guys,

When you create an external links to a web page with a user that has the correct permissions, for example USER1, the latter is able to correctly view the site as a TOP TAB and recall it.

USER1

If you create a second user, for example USER2 with the same permissons, the same will correctly display the URL in the external links but will not be able to recall it due to a permissions problem.

USER2

2022-11-07 09:17:04 - CMDPHP PHP ERROR NOTICE Backtrace: (/links.php[37]:form_actions(), /links.php[186]:CactiErrorHandler())
2022-11-07 09:17:04 - ERROR PHP NOTICE: Trying to access array offset on value of type null in file: /var/www/html/cacti/links.php on line: 186
2022-11-07 09:16:05 - CMDPHP PHP ERROR NOTICE Backtrace: (/links.php[37]:form_actions(), /links.php[186]:CactiErrorHandler())
2022-11-07 09:16:05 - ERROR PHP NOTICE: Trying to access array offset on value of type null in file: /var/www/html/cacti/links.php on line: 186 

I don't know if the behavior is correct or if the external links must be personal and not viewable by other users.

Thanks a lot.

[TheWitness]

What PHP version?

[anarkia1976]

What PHP version?

php -v
PHP 7.4.3 (cli) (built: Aug 17 2022 13:29:56) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.3, Copyright (c), by Zend Technologies

[anarkia1976]

I have seen that when an external link is created by a specific user, in order to make it seen by others, you have to change the settings of the individual user.
I do not know if it is correct, the problem is that when you have many users you should go hand in hand to give the permissions one by one.

[TheWitness]

Thanks for reporting that backtrace. That was a bug and I'll use this ticket to correct it. On the other issue, it seems quite odd. First, you have to grant the user access to the links, and then you have to give them access to the specific link. Maybe you did one and not the other.

[TheWitness]

Use group permissions. It makes life much easier.

[TheWitness]

Did you use the 'Copy User' dropdown to make the new user? If so, and it did not set the Links realms, that is another bug.

[anarkia1976]

Did you use the 'Copy User' dropdown to make the new user? If so, and it did not set the Links realms, that is another bug.

I have not configured a new user, the change was related to making the page visible to existing users. Doing it per group is a great suggestion. Thanks a lot for the info.