Re: advanced HTTP query (cookies)

[Martin Pala]

Ben Hartshorne wrote:
> On Fri, Aug 26, 2005 at 06:25:23PM +0200, Martin Pala wrote:
>
> > Hi,
> >
> > i think you can use monit's SEND/EXPECT statements - example usage:
> >
> > --8<--
> > if failed host cave.persia.ir port 4040
> >    send "Open, Sesame!\r\n"
> >    expect "Please enter the cave\r\n"
> >    send "Shut, Sesame!\r\n"
> >    expect "See you later [A-Za-z ]+\r\n"
> > then restart
> > --8<--
> >
> > It should be possible to write the send/expect sequence as http requests 
> > with the cookie in the http header where needed ...
>
>
> Martin,
>
> I was looking at that syntax, but the string I need to test for
> 'success' is buried further than 256 Bytes into the page.  I saw that
> the SEND/EXPECT statements are good for protocol negotiation, but
> getting the cookie to the web page is only the first part.  I actually
> do use the SEND/EXPECT syntax for the back-end testing, because I need
> to verify an XML schema.  
>
> Also, if I understand the SEND/EXPECT schema, even though it uses regexp
> to match the incoming strings, I would still havet to code in pretty
> much the entire page up to the string I'm looking for, wouldn't I?
>
> So my understanding is that the SEND/EXPECT syntax won't be able to
> solve my problem.  
>
> Thoughts?

I think it is possible to use it - the monit SEND statement will be very 
similar to your wget line.

Wget:
--8<--
wget --cookies=off --header "Cookie: 
sh3=id%3D1970583178430e5e1b0a3b72.85050652%3Bcv%3D2%3Brv%3D3d3b01f6%3B; 
sh2=db%3De8744%3Bcso%3D430e5fcd%3Bslu%3D430e5e1b%3Bref%3Dsh%3B" 
http://www.simplyhired.com/index.php?ds=sr\&mj=1
--8<--

Monit alternative (the EXPECT uses regular expression - for example 
string "SUCCESS" is expected somewhere in the response):
--8<--
if failed host www.simplyhired.com port 80
   send "GET /index.php?ds=sr&mj=1 HTTP/1.0\r\nHost: 
www.simplyhired.com:80\r\nCookie: 
sh3=id%3D1970583178430e5e1b0a3b72.85050652%3Bcv%3D2%3Brv%3D3d3b01f6%3B; 
sh2=db%3De8744%3Bcso%3D430e5fcd%3Bslu%3D430e5e1b%3Bref%3Dsh%3B\r\n\r\n"
   expect "*SUCCESS*"
--8<--

(note that the SEND string should be on one line)


Another option could be to let the wget fetch the page regulary (as 
cronjob) and use monit file check's content test (new feature of 
upcomming monit-4.6).


Martin