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Jonesey3000's avatar
Jonesey3000
Icon for Nimbostratus rankNimbostratus
Jun 16, 2021
Solved

iRULE regsub error

Hi Smart People   I am having some problems with an iRule that has been created on our F5 as a work around to a mixed content error we are receiving on a web page. Our page uses HTTPS but there is...
devops
iRules
  • Simon_Blakely's avatar
    Simon_Blakely
    Jun 16, 2021

    To match a literal } in a string, you will need to escape it 

    "\}\}\}\}"
Jonesey3000's avatar
Jonesey3000
Icon for Nimbostratus rankNimbostratus
Jun 17, 2021

Thank you Simon. That did the trick.

Simon_Blakely's avatar
Simon_Blakely
Icon for Employee rankEmployee
Jun 17, 2021

For an easier irule, try something like

regsub {http:\/\/(.*):80} [HTTP::payload] {https://\1} fixeddata
 
% puts $payload
\{\"result\":\{pathTo3DJSON\":\"http://genericsite.com:80/extrainfo/somefile.extension\"\}\}
% regsub {http:\/\/(.*):80} $payload {https://\1} fixeddata
% puts $fixeddata
\{\"result\":\{pathTo3DJSON\":\"https://genericsite.com/extrainfo/somefile.extension\"\}\}

The regsub matches the whole string starting with http and ending with :80

It also creates a matching group of the fqdn between :// and :80.

You then substitute https://<first matching group> into the result.

Much more efficient.