report rendering to pdf broken after upgrade

[CBoekhuis]

Hello,

After upgrading NagiosXI 2014R1.5 to 2014R2.0 we ran into a problem where we can no longer render reports to pdf. Scheduled reports ahve no attachements or broken pdf's attached.
If I hit the pdf button in a report the follwing error is thrown:

************ ERROR: Failed to render URL 'http://[removed]/nagiosxi//reports/availability.php?1&hideoptions=1&username=[removed]&ticket=fle5r3fngabe6hsuv5aq5sau8j36qoq9d9d89psp3757o05l4fd69n5e85j2sc89&locale=en_US' as '/usr/local/nagiosxi/tmp/scheduledreport-[removed]-1417514895-page.pdf' ************

I allready found a few similar posts so I checked the following:

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> ls -ld /usr/local/nagiosxi/tmp
drwsrwsr-x 3 nagios nagios 8192 Dec  1 15:16 /usr/local/nagiosxi/tmp
> ls -ld /usr/local/nagiosxi
drwxr-xr-x 10 nagios nagios 1024 Feb  4  2014 /usr/local/nagiosxi

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> /usr/bin/wkhtmltopdf -V
Name:
  wkhtmltopdf 0.10.0 rc2

Furthermore our installation runs on RHEL5.7 32b.
Also there's still plenty of memory available for the render process:

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> free
             total       used       free     shared    buffers     cached
Mem:       5187844    4157472    1030372          0     229880    2311484
-/+ buffers/cache:    1616108    3571736
Swap:      2097144        232    2096912

When the error occurs, there is also a PHP Notice in de /var/log/httpd/error_log which I never saw before (to my knowledge):

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[Tue Dec 02 11:08:15 2014] [error] [client XXX.XXX.XXX.XXX] PHP Notice:  Undefined index:  use_https in /usr/local/nagiosxi/html/reports/availability.php on line 2575, referer: http://[removed]/nagiosxi/reports/availability.php?&=

Kind Regards,
Hans Blom

[cmerchant]

Is it possible that your IP address of your nagios server has changed? In XI --> Admin --> System Config --> Manage System Config, check what is in Program URL: and see that the Program URL: has the correct IP address or that the dns hostname URL resolves correctly.

We had successfully recreated the error by changing from a static to a dynamic ip address of our Nagios XI server through DHCP and we received the same error message.

[CBoekhuis]

Nope, it has had the same static ip for years. I've also have checked the DNS but it all resolves correctly.
The external URL is blank, so that is not the issue either.

[tmcdonald]

Have you implemented SSL on this server?

[CBoekhuis]

No, there is no SSL configuration done. The Program URL is also plain http:// configured.
In the mean time I also checked the "export to CSV" which work fine, so it's only the pdf conversion that's not working.

[cmerchant]

It appears that the use_https config might be missing,

the /usr/local/nagiosxi/html/config.inc.php file should have

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// force http/https
$cfg['use_https'] = false; // determines whether cron jobs and other scripts will force the use of HTTPS instead of HTTP

and not be commented out.

could we check this file:

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cd /usr/local/nagiosxi/html/
grep use_https config.inc.php

[CBoekhuis]

Ok, it appears the code isn't in there:

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root:/usr/local/nagiosxi/html> grep use_https config.inc.php
root:/usr/local/nagiosxi/html> 
root:/usr/local/nagiosxi/html> ll config.inc.php 
-rwxr-x--- 1 nagios nagios 7054 Nov 13 13:31 config.inc.php

I also checked the config.inc.php that came with the upgrade, which is this one if I'm correct:

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root:/usr/local/nagiosxi/tmp/nagiosxi/nagiosxi/basedir/html> ll config.inc.php 
-rwxrwxr-x 1 nagios nagios 7054 Nov 13 13:30 config.inc.php

They are both the same.

[tgriep]

Could you add the following line in the /usr/local/nagiosxi/html/config.inc.php file?

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$cfg['use_https'] = false; // determines whether cron jobs and other scripts will force the use of HTTPS instead of HTTP

Also, could you check the Program URL setting in Xi and make sure it is correct?

You can do that by Clicking on Admin and then Manage System Config on the left hand side.

The Program URL has to match the URL you use to access NagiosXI in your browser.

[CBoekhuis]

Hello,

I added the line as mentioned. The error message when rendering to pdf is unfortunately still there. However the "PHP Notice: Undefined index: use_https" in de /var/log/httpd/error_log did not appear.

As for the Program URL, that has been checked and verified to be correct

After the weekend I'm going to pull some more error_log files from the backup to make sure that the notices actually new. At this moment I see a lot more of these kinds of PHP notices, so I want to be sure what it looked like about a month ago or so.

Greetings
Hans

[lmiltchev]

As for the Program URL, that has been checked and verified to be correct

Can you show us what you have in the "Program URL" field? Do you have "http" or "https", FQDN or IP? What happens if you create a new report - can you schedule it successfully? What is the output of the following command?

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cat /etc/hosts