Forum Discussion

krelm_52303's avatar
krelm_52303
Icon for Nimbostratus rankNimbostratus
Nov 20, 2008

Changing HTTP Header Host port

Am receiving http requests on a high port (55555) and need to remove this in the header for all requests (so it sends on as port 80).     For example...     Host: www.google.com:...
application delivery
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devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Nov 24, 2008
Can you post some anonymized samples of the URI's you want to rewrite? Is the client using an absolute URI? Something like this?

 

 

GET http://www.w3.org:55555/pub/WWW/TheProject.html HTTP/1.1

 

User-Agent: ...

 

 

If so, you could use string map instead of regsub. The string function would be more efficient than a regex.

 

 

HTTP::uri [string map {:55555/ /} [HTTP::uri]]

 

 

If you also need to rewrite the port in response content, you could use a stream filter and STREAM::expression based iRule. This would be more efficient than collecting the response content and performing regex operations on it. You can check the STREAM::expression wiki page (Click here) for examples.

 

 

Aaron