Rewrite Rule

Hi Brandon,

If it's just the URI in requests and response redirects, you can use something like this:

when HTTP_REQUEST {

 Check the requested URI set to lowercase
switch -glob [string tolower [HTTP::uri]] {
"/newfolder/*" {
set find "newfolder"
set replace "oldfolder"
HTTP::uri [ string map -nocase "$find $replace" [HTTP::uri]]
}
}
}
when HTTP_RESPONSE {

 Check if response is a redirect
if {[HTTP::is_redirect] and [HTTP::header Location] contains $find}{
 Rewrite the redirect Location header value
HTTP::header replace Location [string map -nocase "$find $replace" [HTTP::header Location]]
}

 Check if response payload type is text
if {[HTTP::header value Content-Type] contains "text"}{

 Set the replacement strings
STREAM::expression "@$find@$replace@"

 Enable the stream filter for this response only
STREAM::enable
}
}

If you need to rewrite response content as well, you can add a blank stream profile, a custom HTTP profile with response chunking set to rechunk and this iRule:

when HTTP_REQUEST {

 Track whether to rewrite responses
set rewrite 0

 Check the requested URI set to lowercase
switch -glob [string tolower [HTTP::uri]] {
"/newfolder/*" {
set find "newfolder"
set replace "oldfolder"
HTTP::uri [ string map -nocase "$find $replace" [HTTP::uri]]
set rewrite 1
}
}
}
when HTTP_RESPONSE {

if {$rewrite}{

 Check if response is a redirect
if {[HTTP::is_redirect] and [HTTP::header Location] contains $find}{
 Rewrite the redirect Location header value
HTTP::header replace Location [string map -nocase "$find $replace" [HTTP::header Location]]
}

 Check if response payload type is text
if {[HTTP::header value Content-Type] contains "text"}{

 Set the replacement strings
STREAM::expression "@$find@$replace@"

 Enable the stream filter for this response only
STREAM::enable
}
}
}

Aaron