API: Retrieve Graph image

[Mojah]

Is there currently a way to retrieve the graph of a host as a full image from the API?

The current "graph.get" retrieves actual data (name, graphid, values), but I'm trying to integrate Zabbix Graphs using this API, so I don't have to render them myself by querying all the data.

If it's not possible, would it be considered for addition later?

And if not, is there a way to retrieve the data from the "chart2.php?graphid=[id]" directly, without logging in to the webfrontend (so I can fetch the data on that page from my appliance & present it to the user, without logging in to the "real" zabbix web frontend first)? I don't like to give the guest account read privileges on these graphs, I prefer to keep it secured by using the authentication mechanisme in the API.

[Aly]

Hi, as you mentioned currently it's not possible, but in future such feature definitely will be added.

[Mojah]

Hi,

Ok, are there proper guidelines on "forging" sessions/cookies to retrieve it directly from the graph2.php page? By "forging", I of course mean using valid credentials, but setting up the sessions/cookies in a way that is accepted by the Zabbix Frontend.

If not, I'll have to deepdive into the code and track it down ...

Regards,
Mattias

[Aly]

Try searching the forum there are some ways to get images by curl.

[Mojah]

The forum search did indeed yield some results. For the PHP implementers among us, here's how.

// Get the login-cookie
$strWgetLogin           = "wget --save-cookies=cookies.txt --keep-session-cookies --post-data \"name={zabbixuser}&password={zabbixpass}&enter=Enter\" -O - -q \"http://url/index.php?login=1\"";
exec($strWgetLogin);

// Wget our graph!
$strWget        = "wget --load-cookies=cookies.txt -O graph.png -q \"http://url/chart2.php?graphid={graphid}&width=400\"";
exec($strWget); 

To be expanded to include security etc!

Thanks!

[azislo]

Is it now possible to get graph as .png file via API (without any php stuff) ? All I get are graphid's and similar things. I need it for my experimental Zabbix android app, can't use cURL or something similar ...

Thanks for help.

[Mojah]

Is it now possible to get graph as .png file via API (without any php stuff) ? All I get are graphid's and similar things. I need it for my experimental Zabbix android app, can't use cURL or something similar ...

Thanks for help.

For now: no. We worked around this via curl, or by using system calls to retrieve the graph. Have a look at the source: https://github.com/mattiasgeniar/MoZ...ass_zabbix.php

It's in the function getGraphImageById().

[simon123]

For now: no. We worked around this via curl, or by using system calls to retrieve the graph. Have a look at the source: https://github.com/mattiasgeniar/MoZ...ass_zabbix.php

It's in the function getGraphImageById().

Is there already a feature request for this? This would be a major improvement!

EDIT:

Nevermind, found it:

https://support.zabbix.com/browse/ZBXNEXT-562

[Mojah]

Is there already a feature request for this? This would be a major improvement!

None that I'm aware of, so feel free to add it. But actually, curl is available for many languages, so just using that to retrieve your graphs is a viable way of getting it done.