Forum Discussion
mdcarson_58978
Nimbostratus
NimbostratusDiacritics in iRules
(BIG-IP 11.1.0 Build 1943.0 Final)
I have URIs with accented characters for some international sites. I can forward a URI with diacritics by URL encoding the destination address.
But I don't seem to be able to match an encoded or decoded URL that originally contained accented characters in a switch statement, no matter what I try.
Forwarding to an encoded URL works:
when HTTP_REQUEST {
switch [string tolower [HTTP::uri]] {
/testme {
HTTP::respond 301 Location "http://mydomain.com/restauraci%C3%B3n"
}
}
Matching an encoded URI in a switch statement doesn't:
when HTTP_REQUEST {
switch [string tolower [HTTP::uri]] {
/restauraci%C3%B3n {
HTTP::respond 301 Location "http://mydomain.com/newlocation"
}
}
Browsing to http://mydomain.com/restauración (http://mydomain.com/restauraci%C3%B3n) doesn't get forwarded.
I did a test to see what the decoded URI looks like:
when HTTP_REQUEST {
switch [URI::decode [string tolower [HTTP::uri]]] {
/restauraci* {
200 content "[URI::decode [HTTP::uri]]"
}
}
Browsing to http://mydomain.com/restauración I get "/restauración"
Using the same rule without the decode, I get "/restauraci%C3%B3n"
Trying to match the decoded URI (or anything else) doesn't work either:
when HTTP_REQUEST {
switch [URI::decode [string tolower [HTTP::uri]]] {
/restauración -
/restauraci%C3%B3n -
/restauración {
HTTP::respond 301 Location "http://mydomain.com/newlocation"
}
}
Is there a simple way to filter on an encoded URI?
hooleylistCirrostratus
If the URI is encoded properly by the browser, this should work as long as you set the cases to lower case:when HTTP_REQUEST { switch [string tolower [HTTP::uri]] { /restauraci%c3%b3n { HTTP::respond 301 Location "http://mydomain.com/newlocation" } }
Aaron
mdcarson_58978I skipped the string tolower in my simplified examples, but we actually have it in the iRule.
switch -glob [string tolower [HTTP::uri]] {
I don't think it's a browser encoding issue, because I get the same results in Chrome, FF, IE, etc.- hooleylistCan you log the value from the browser?
when HTTP_REQUEST { switch [string tolower [HTTP::uri]] { /restauraci%c3%b3n { log local0. "matched: /restauraci%c3%b3n" HTTP::respond 301 Location "http://mydomain.com/newlocation" } default { log local0. "no match: [string tolower [HTTP::uri]]" } }
Aaron