Forum Discussion
NimbostratusJust Part of the url tolower
Hi
I searched the web and forum on ho to change some parts ot the url but wasn't successfull.
I need a iRule that just changes the bold part in the following examples.
www.domain.ch/URI1/(S(o5flruacyziex445hrvlk355))/index.aspx
www.domain.ch/uri/(S(o5flruacyziex445hrvlk355))/index.aspx
I tried with regex scan ans string match but never go it running.
It was easy change the complete uri or host tolower but not for just a part in the middle.
Which Method should I use?
In the following Article (https://devcentral.f5.com/wiki/iRul...rCase.ashx) is also just one Part tolower but it's not what i'm looking for.
Original request: http://www.example.com/myDirectory/Index.html?Param1=Value1&Param2=Value2
Modified request: http://www.example.com/mydirectory/index.html?Param1=Value1&Param2=Value2
Any Help is appreciated,
Best Regards,
Roger
3 Replies
- nitass
Employee
do you want to lower whole HTTP::path string (e.g. /myDirectory/Index.html) or only the first directory (e.g. /myDirectory/)?
whole HTTP::path string
[root@ve10:Active] config b rule myrule list
rule myrule {
when HTTP_REQUEST {
if { [HTTP::query] ne "" } {
HTTP::redirect " tolower [HTTP::path]]?[HTTP::query]"
} else {
HTTP::redirect " tolower [HTTP::path]]"
}
}
}
[root@ve10:Active] config curl -I 'http://www.example.com/myDirectory/Index.html?Param1=Value1&Param2=Value2'
HTTP/1.0 302 Found
Location: http://www.example.com/mydirectory/...am2=Value2
Server: BigIP
Connection: Keep-Alive
Content-Length: 0
the first directory
[root@ve10:Active] config b rule myrule list
rule myrule {
when HTTP_REQUEST {
if { [scan [HTTP::path] {/%[^/]} str] == 1 } {
HTTP::redirect " map [list /${str}/ /[string tolower $str]/] [HTTP::uri]]"
}
}
}
[root@ve10:Active] config curl -I 'http://www.example.com/myDirectory/Index.html?Param1=Value1&Param2=Value2'
HTTP/1.0 302 Found
Location: http://www.example.com/mydirectory/...am2=Value2
Server: BigIP
Connection: Keep-Alive
Content-Length: 0 
What_Lies_Bene1Cirrostratus
I've not been able to test it but this might work (of course, remove the logging once it does work);Find the first element of the URI and lower it set stringtolower [string tolower [findstr [HTTP::uri] "/" "0" "/"]] log local0. "Lowered part of URI is: $stringtolower" Extract the rest of the URI that we don't want to lower set restofuri [findstr [HTTP::uri] $stringtolower "1"] log local0. "Remaining URI is $restofuri" Rebuild the URI and modify it before sending to the server HTTP::uri /$stringtolower/$restofuri log local0. "Rebuilt URI is /$stringtolower/$restofuri"- Kevin_StewartHere's two methods:
when HTTP_REQUEST { going to split the URI on the "/" character and loop through the list set newURI "" for { set x 0 } { $x < [llength [split [HTTP::uri] "/"]] } { incr x } { if { $x == 1 } { this is the first path - the one we want to set to lowercase append newURI "[string tolower [lindex [split [HTTP::uri] "/"] 1]]/" } else { append newURI "[lindex [split [HTTP::uri] "/"] $x]/" } } the above append loop adds an unnecessary "/" at the end, so strip it here set newURI [string range $newURI 0 end-1] log local0. $newURI }
or:
effectively splitting the first part of the URI away from everything else, in one long string manipulation statement
set newURI1 [string tolower [string range [HTTP::uri] 0 [string first "/" [HTTP::uri] 1]]][string range [HTTP::uri] [expr [string first "/" [HTTP::uri] 1] + 1] end]
log local0. $newURI1
Both just deal with the URI, so to get the full URL, just do this:
[HTTP::host]$newURI
