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____177053's avatar
____177053
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Sep 20, 2017

How to limit http request rate

I wants to limit http request rate for some of URIs such as "/a" "/b" "/c",and I wrote one but it didn't work:   when HTTP_REQUEST { set start_time [clock seconds] set reqs_sec 0 if { [HTTP::reque...
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  • ____177053's avatar
    ____177053
    Sep 20, 2017

    This one works! when HTTP_REQUEST {

    set lrqst 10
set ltime 10
set rtime 5
if {[table lookup -notouch -subtable "blacklist" [HTTP::uri]] != "" }{
    reject
    log local0.warn "reject"
}
elseif { [table lookup -notouch -subtable "clientxdlist" [HTTP::uri]] == "" }{
    table set -subtable "clientxdlist" [HTTP::uri] 1 indefinite $ltime
}
elseif { [table lookup -notouch -subtable "clientxdlist" [HTTP::uri]] < $lrqst}{
    table incr -subtable "clientxdlist" [HTTP::uri]
}
else {
    table set -subtable "blacklist" [HTTP::uri] 1 indefinite $rtime
}

    }

____177053's avatar
____177053
Icon for Cirrus rankCirrus
Sep 20, 2017

This one works! when HTTP_REQUEST {

set lrqst 10
set ltime 10
set rtime 5
if {[table lookup -notouch -subtable "blacklist" [HTTP::uri]] != "" }{
    reject
    log local0.warn "reject"
}
elseif { [table lookup -notouch -subtable "clientxdlist" [HTTP::uri]] == "" }{
    table set -subtable "clientxdlist" [HTTP::uri] 1 indefinite $ltime
}
elseif { [table lookup -notouch -subtable "clientxdlist" [HTTP::uri]] < $lrqst}{
    table incr -subtable "clientxdlist" [HTTP::uri]
}
else {
    table set -subtable "blacklist" [HTTP::uri] 1 indefinite $rtime
}

}