Forum Discussion

coreyva's avatar
coreyva
Icon for Nimbostratus rankNimbostratus
Jan 31, 2012

STREAM::expression regex

I'm in the process of writing an irule to correct for some bad code in one of our applications. The app in question has multiple bad links with tildes in it. Example bad code img src="~/0.jpg" wi...
application delivery
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devops
iRules
hooleylist's avatar
hooleylist
Icon for Cirrostratus rankCirrostratus
Jan 31, 2012

Hi coreyva,

The curly braces prevent character interpretation. Can you try this:

 


       Replace '".*~/' with '/'
      STREAM::expression {@src="~/@src="http://devcentral.f5.com/@ @src="http://devcentral.f5.com/~/@src="http://devcentral.f5.com/@ @src="http://devcentral.f5.com/.*/~/@src="http://devcentral.f5.com/@}

 

If that doesn't work, can you try a simple find/replace string to make sure the response is being parsed correctly (ie, it's not compressed)? If it's compressed, you should either disable compression on the servers or remove the Accept-Encoding header from the requests in the iRule.

Also, you should move STREAM::disable to HTTP_REQUEST to prevent the stream filter from being enabled on a subsequent HTTP request.

Aaron