http referer iRule assistence

Hi Sonny,

you could simply add an additional whitelist for problematic web pages (e.g. upload page)...

when HTTP_REQUEST { 

     This iRule will check the HTTP referer to make sure the traffic arriving at the OWA is in-fact coming from Sharepoint. 

    if { not ( [HTTP::uri] contains "/favicon" ) } { 
        if { $static::ref_debug } { log local0. "Incoming referer: [HTTP::header Referer]" } 
        switch -glob [string tolower [HTTP::header Referer]] { 
            "https://sharepoint/*" { 
                if { $static::ref_debug } { log local0. "From allowed referer - allow" } 
                return 
            } 
            "https://OWA/*" { 
                if { $static::ref_debug } { log local0. "local domain - allow" } 
                return 
            } 
            default {
                if { $static::ref_debug } { log local0. "from disallowed referer - redirect" }
                switch -glob -- [string tolower [HTTP::uri]] {
                    "*upload.aspx*" - \
                    "*attachment.aspx*" - \
                    "*somepage.aspx*" - \
                    "*whitelist.aspx*" {
                        if { $static::ref_debug } { log local0. "Explicitly whitelisted URL - allow" }
                        return
                    } 
                    default {
                        HTTP::redirect [HTTP::header Referer] 
                    }
                }
            } 
        } 
    } 
}

Cheers, Kai