Forum Discussion
AltostratusHow to evaluate url search request
Hi i have a problem i need to resolve, whereby i need to filter search requests looking for requests that contain less than 3 characters and if they do
return a standard search result.
An example is below of a search request is below:-
http://test.domain.com:9999/RTEFacade_RIGHTV/SearchVideos?
client=xml&expression=The&field_name=name&identity=5BTWmZd8VMc88GDqunvytFa%2B%2FA4kIu9kXhHL27Iwje%2
BVsrpnZmwDn5jZj7VbrHEDiinYpfiIZvwVXDD2pjxJwUv96uPxwHx6c66EVFxL0cGCvplvCQUKyAxsmKyFH28eNErrR1OREweC
Nzk6m2JLYFS3C0Me5hLf&language_code=sv&limited=false&match_partial=true&max_results=30&root_id=605&securit
y=false
The field that i need to look at is marked in bold above, is this has less than 3 characters then we need to return the following url instead
http://test.domain.com:9999/SearchVideos/Result.html
Any ideas how i would achieve this ?
/Regards Craig
12 Replies
What_Lies_Bene1Cirrostratus
This shouldn't be too hard, when you say you want to 'return the following URL instead' do you mean send a redirect?
CGINo not a redirect, it would be the case that the other search url is sent instead of the original one, but only when there are matching citeria (i.e only 3 characters or less in the mare marked with bold text)
/Craig
- What_Lies_Bene1OK, so if it's not a redirect, how do you want to 'send' the URL? Do you want the F5 to respond with the web page? Or do you want to modify the request sent to the server so it returns something specific?
- CGI
We have to modify the request puting this in its place:- http://test.domain.com:9999/SearchVideos/Result.html /Craig
- What_Lies_Bene1OK, understood. So here's what I think will work;
when HTTP_REQUEST { Check if the path is the one used for search queries (and ignore case) if { [string tolower [HTTP::path]] equals "/rtefacade_rightv/searchvideos" } { Look for text 'expression' in the URI , skip forward 1 character (the '=') and save all text up to the next '&' in variable 'searchstring' set searchstring [findstr [HTTP::uri] "expression" "1" "&"] If the length of 'searchstring' is 3 or less, change the URI sent to the real server if { string length $searchstring <= 3 } { HTTP::uri "/SearchVideos/Result.html" Stop processing the iRule here return } } }
The only bit I'm unsure about is this line, might need some square brackets??? 'if { string length $searchstring <= 3 } {' - What_Lies_Bene1
Note all '&'s should be just &
- CGI
Okay thanks a lot i will try it out and let you know the results /Craig
- What_Lies_Bene1Please do, cheers.
- nitass
Employee
just another example.[root@ve10:Active] config b virtual bar list virtual bar { snat automap pool foo destination 172.28.19.252:9999 ip protocol 6 rules myrule profiles { http {} tcp {} } } [root@ve10:Active] config b pool foo list pool foo { members 200.200.200.102:80 {} } [root@ve10:Active] config b rule myrule list rule myrule { when HTTP_REQUEST { set param [URI::query "?&[HTTP::query]" expression] if {$param ne "" and [string length $param] < 3} { HTTP::uri "/SearchVideos/Result.html" } } } expression=The [root@ve10:Active] config ssldump -Aed -nni 0.0 port 9999 or port 80 New TCP connection 2: 172.28.19.251(45999) <-> 172.28.19.252(9999) 1360713613.2265 (0.0010) C>S --------------------------------------------------------------- HEAD /RTEFacade_RIGHTV/SearchVideos?client=xml&expression=The&field_name=name&identity=5BTWmZd8VMc88GDqunvytFa%2B%2FA4kIu9kXhHL27Iwje%2BVsrpnZmwDn5jZj7VbrHEDiinYpfiIZvwVXDD2pjxJwUv96uPxwHx6c66EVFxL0cGCvplvCQUKyAxsmKyFH28eNErrR1OREweCNzk6m2JLYFS3C0Me5hLf&language_code=sv&limited=false&match_partial=true&max_results=30&root_id=605&security=false HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: test.domain.com --------------------------------------------------------------- New TCP connection 3: 200.200.200.10(45999) <-> 200.200.200.102(80) 1360713613.2288 (0.0010) C>S --------------------------------------------------------------- HEAD /RTEFacade_RIGHTV/SearchVideos?client=xml&expression=The&field_name=name&identity=5BTWmZd8VMc88GDqunvytFa%2B%2FA4kIu9kXhHL27Iwje%2BVsrpnZmwDn5jZj7VbrHEDiinYpfiIZvwVXDD2pjxJwUv96uPxwHx6c66EVFxL0cGCvplvCQUKyAxsmKyFH28eNErrR1OREweCNzk6m2JLYFS3C0Me5hLf&language_code=sv&limited=false&match_partial=true&max_results=30&root_id=605&security=false HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: test.domain.com --------------------------------------------------------------- expression=A [root@ve10:Active] config ssldump -Aed -nni 0.0 port 9999 or port 80 New TCP connection 1: 172.28.19.251(46000) <-> 172.28.19.252(9999) 1360713726.9737 (0.0010) C>S --------------------------------------------------------------- HEAD /RTEFacade_RIGHTV/SearchVideos?client=xml&expression=A&field_name=name&identity=5BTWmZd8VMc88GDqunvytFa%2B%2FA4kIu9kXhHL27Iwje%2BVsrpnZmwDn5jZj7VbrHEDiinYpfiIZvwVXDD2pjxJwUv96uPxwHx6c66EVFxL0cGCvplvCQUKyAxsmKyFH28eNErrR1OREweCNzk6m2JLYFS3C0Me5hLf&language_code=sv&limited=false&match_partial=true&max_results=30&root_id=605&security=false HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: test.domain.com --------------------------------------------------------------- New TCP connection 2: 200.200.200.10(46000) <-> 200.200.200.102(80) 1360713726.9756 (0.0017) C>S --------------------------------------------------------------- HEAD /SearchVideos/Result.html HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: test.domain.com --------------------------------------------------------------- - CGIJust to let you know the irule worked without prolems.
/regards Craig
