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joxonu_175315's avatar
joxonu_175315
Icon for Nimbostratus rankNimbostratus
Sep 28, 2015
Solved

Need help with iRule using iFiles

Hey all,

I have an iRule that calles iFiles for a local maintenance page but only seems to work at the root of the URL.

ex. www.example.com/ -> works, renders html text and graphic. www.example.com/anythingelse/ -> fails, only renders html text and no graphics.

    when HTTP_REQUEST priority 10 { 
        switch [HTTP::uri] {
            "/down.jpg" { 
                HTTP::respond 200 content [ifile get down.jpg] "Content-Type" "image/png" "Connection" "Close"
                event HTTP_REQUEST disable
            }
            "/poweredby.gif" { 
                HTTP::respond 200 content [ifile get poweredby.gif] "Content-Type" "text/css" "Connection" "Close"
                event HTTP_REQUEST disable
            }
            default {   
                if { ( [HTTP::uri] starts_with "/"  ) } {
                    HTTP::respond 200 content [ifile get down.html] "Content-Type" "text/html" "Connection" "Close"
                    event HTTP_REQUEST disable
                }
            }
        }
    }
application delivery
devops
iRules
LTM
  • Brad_Parker_139's avatar
    Brad_Parker_139
    Sep 28, 2015

    I'm guessing you are trying to match the file no matter the path. If that's the case you need a glob added to the switch and "*" added to your jpg and gif uris:

    when HTTP_REQUEST priority 10 { 
    switch -glob [HTTP::uri] {
        "*/down.jpg" { 
            HTTP::respond 200 content [ifile get down.jpg] "Content-Type" "image/png" "Connection" "Close"
            event HTTP_REQUEST disable
        }
        "*/poweredby.gif" { 
            HTTP::respond 200 content [ifile get poweredby.gif] "Content-Type" "text/css" "Connection" "Close"
            event HTTP_REQUEST disable
        }
        default {   
            if { ( [HTTP::uri] starts_with "/"  ) } {
                HTTP::respond 200 content [ifile get down.html] "Content-Type" "text/html" "Connection" "Close"
                event HTTP_REQUEST disable
            }
        }
    }
}

11 Replies

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  • Brad_Parker's avatar
    Brad_Parker
    Icon for Cirrus rankCirrus
    Sep 28, 2015

    I'm guessing you are trying to match the file no matter the path. If that's the case you need a glob added to the switch and "*" added to your jpg and gif uris:

    when HTTP_REQUEST priority 10 { 
    switch -glob [HTTP::uri] {
        "*/down.jpg" { 
            HTTP::respond 200 content [ifile get down.jpg] "Content-Type" "image/png" "Connection" "Close"
            event HTTP_REQUEST disable
        }
        "*/poweredby.gif" { 
            HTTP::respond 200 content [ifile get poweredby.gif] "Content-Type" "text/css" "Connection" "Close"
            event HTTP_REQUEST disable
        }
        default {   
            if { ( [HTTP::uri] starts_with "/"  ) } {
                HTTP::respond 200 content [ifile get down.html] "Content-Type" "text/html" "Connection" "Close"
                event HTTP_REQUEST disable
            }
        }
    }
}
    • joxonu_175315's avatar
      joxonu_175315
      Icon for Nimbostratus rankNimbostratus
      Sep 28, 2015
      Thanks for the quick response and solution. Really appreciate it!
    • joxonu_175315's avatar
      joxonu_175315
      Icon for Nimbostratus rankNimbostratus
      Sep 29, 2015
      Sorry for the delayed response. Yes it is working as expected with the "glob" match. Thanks again for the timely response and fix!
  • Brad_Parker_139's avatar
    Brad_Parker_139
    Icon for Nacreous rankNacreous
    Sep 28, 2015

    I'm guessing you are trying to match the file no matter the path. If that's the case you need a glob added to the switch and "*" added to your jpg and gif uris:

    when HTTP_REQUEST priority 10 { 
    switch -glob [HTTP::uri] {
        "*/down.jpg" { 
            HTTP::respond 200 content [ifile get down.jpg] "Content-Type" "image/png" "Connection" "Close"
            event HTTP_REQUEST disable
        }
        "*/poweredby.gif" { 
            HTTP::respond 200 content [ifile get poweredby.gif] "Content-Type" "text/css" "Connection" "Close"
            event HTTP_REQUEST disable
        }
        default {   
            if { ( [HTTP::uri] starts_with "/"  ) } {
                HTTP::respond 200 content [ifile get down.html] "Content-Type" "text/html" "Connection" "Close"
                event HTTP_REQUEST disable
            }
        }
    }
}
    • joxonu_175315's avatar
      joxonu_175315
      Icon for Nimbostratus rankNimbostratus
      Sep 28, 2015
      Thanks for the quick response and solution. Really appreciate it!
    • joxonu_175315's avatar
      joxonu_175315
      Icon for Nimbostratus rankNimbostratus
      Sep 29, 2015
      Sorry for the delayed response. Yes it is working as expected with the "glob" match. Thanks again for the timely response and fix!
  • IheartF5_45022's avatar
    IheartF5_45022
    Icon for Nacreous rankNacreous
    Sep 29, 2015

    Have you created the iFile as both a sys file and an LTM file ie.

    tmsh create sys file ifile "down_jpg" source-path file:/var/class/down.jpg
tmsh create ltm ifile "down_jpg" file-name "down_jpg"

    You need to in order to reference it from an iRule. In addition I've always removed '.' from iFile names (but not sure if this has been due to madness on my part or an actual issue).