https rewrite

Thanks for your quick response. Meantime, while searching, I also found this great post:

 

http://devcentral.f5.com/default.aspx?tabid=28&view=topic&forumid=5&postid=3410

 

 

I followed that example, and set find "http://eportfoliodev.wsu.edu",

 

and replace "https://eportfoliodev.wsu.edu"... but it doesn't work for me... i turned on logging, and tried to do some trouble-shooting - simply try to replace "Welcome" wording to "===============Test Rewrite===============". And I found some inconsistent behaviour.

 

 

As you can see from this URL:

 

https://eportfoliodev.wsu.edu/portal

 

Their should be 5 "Welcome" there on that page (4 of them in the content, and 1 in the page title). But only 2 of them are successfully being replaced.

 

 

My code is as follows:

 

 

when HTTP_RESPONSE {

 

collect response data

 

if { [HTTP::header exists "Content-Length"] } {

 

set content_length [HTTP::header "Content-Length"]

 

} else {

 

set content_length 4294967295

 

}

 

if { $content_length > 0 } {

 

HTTP::collect $content_length

 

}

 

}

 

 

when HTTP_RESPONSE_DATA {

 

 

set find "Welcome"

 

set replace "===============Test Rewrite==============="

 

set offset 0

 

set diff [expr [string length $replace] - [string length $find]]

 

 

Get indices of all instances of find string in the payload

 

set indices [regexp -all -inline -indices $find [HTTP::payload]]

 

 

if { $indices ne "" } {

 

log user.notice "iRule: ePortfolioDev - Search Found $indices"

 

} else {

 

log user.notice "iRule: ePortfolioDev - Search Not Found"

 

}

 

 

foreach idx $indices {

 

 

set start [expr [lindex $idx 0] + $offset]

 

set end [expr [lindex $idx 1] + $offset]

 

set len [expr {$end - $start + 1}]

 

 

replace the instance of find with the contents of replace

 

HTTP::payload replace $start $len $replace

 

 

modify offset if the replace string is larger or smaller

 

than find.

 

incr offset $diff

 

}

 

}

 

 

 

My question is, if searching inside the HTTP::payload does not find all occurence of a string... where else can I search for?

 

 

Again, any help is very much appreciated.

 

 

- corinna