Forum Discussion
AltostratusURL Rewriting
Hello together
Does anyone have experience with URL rewriting wit help of an iRule or a rewrite profile?
For a migration i have to rewrite a url. We have two pools (old-web, new-web) containing IIS web servers.
The url like:
https://www.myweb.com/webapp/v40/typ?filter=typ%3D10 should be rewritet to https://app.myweb.com/v40/typ?filter=typ%3D10
The problem is that app.myweb.com does't expect webbapp in the path, therefore it must be sent without /webapp/ to the host.
i first tried it with an irule, this does not work unfortunately
when HTTP_REQUEST {
if {[string tolower [HTTP::host]] starts_with "www.myweb.com" && [string tolower[HTTP::path]] eq "/webapp/"} {
HTTP::header replace Host "app.myweb.com"
HTTP::uri "/"
pool new-web 80
}
}Then i tried it with an rewrite profile
Does anyone have any idea what I'm doing wrong?
2 Replies
gersbahCirrostratus
I have no experience with rewrite profiles, but I may be able to help with that iRule.
Your condition only matches when the path equals /webapp/, but you want it to match when it starts_with.
Then after that it would rewrite the entire url to "/", not just remove the /webapp/ portion of the path.
Instead you should be able to almost 1:1 use this example from here https://devcentral.f5.com/s/articles/irules-101-14-tcl-string-commands-part-2
when HTTP_REQUEST { set uri [HTTP::uri] if { $uri starts_with "/axess2" } { HTTP::uri [string range $uri 7 end] pool pool1 } }Adjusted to your own example:
when HTTP_REQUEST { set uri [HTTP::uri] if {[string tolower [HTTP::host]] eq "www.myweb.com" && [string tolower $uri] starts_with "/webapp/"} { HTTP::header replace Host "app.myweb.com" HTTP::uri [string range $uri 7 end] pool new-web } }
Dan44hi
thanks. your example helped us to solve the problem.
