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Some fixes to make the cycle feature and hover graphs work in recent Cacti versions #9

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merged 3 commits into from
Jul 23, 2020

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@jamesbtate jamesbtate commented Jul 9, 2020

The "cycle" feature when viewing weathermaps was broken. The path to a JS file was wrong in the HTML in the main PHP file and a small change was needed in the map-cycle.js file.

The "hover" graphs on Weathermaps were not working because Cacti's CSP header does not allow the many unsafe/insecure calls to eval() and setTimeout() in overlib.js.

Both these problems can be seen in the browser's JS console when trying to cycle weathermaps.

It appears overlib.js has not been maintained for quite a while. I fixed some of the unsafe calls myself and left many unsafe calls that were not encountered in my usage of this Weathermap plugin in Cacti 1.2.10. It is time-consuming to fix these calls because many are a just different enough to make a reasonable regex replacement not work.

jtateodu added 2 commits July 8, 2020 16:57
There were 87 calls to eval() which is generally considered bad
practice and current Cacti CSP instructs browsers to block
these calls.

There were also multiple legacy-insecure calls to setTimeout()
using strings instead of functions with the same security problem.

In this commit, some of these insecure funciton calls have been fixed to
pass the current default Cacti CSP for 'script-src' which is 'self'.
This is defined in an HTTP header in Cacti version 1.2.10 at
<Cacti Root>/include/global.php:409
@jamesbtate jamesbtate changed the title Some fixes to make the cycle feature work in recent Cacti versions Some fixes to make the cycle feature and hover graphs work in recent Cacti versions Jul 9, 2020
This is needed to make weathermap cycling work outside the
full-screen mode.
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3 participants