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Fixes a nil value concatenation

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Script "/Users/simone/code/ntopng/scripts/lua/get_db_flows.lua" returned an error:
/Users/simone/code/ntopng/scripts/lua/get_db_flows.lua:81: attempt to concatenate local 'l7proto_label' (a nil value)
This commit is contained in:
Simone Mainardi 2016-12-15 23:44:40 +01:00
parent 5ded07f5a8
commit 9e840e3178
1 changed files with 10 additions and 1 deletions
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11
scripts/lua/modules/historical_utils.lua
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@ -1439,7 +1439,16 @@ function historicalFlowsTab(ifId, host, epoch_begin, epoch_end, l7proto, l4proto
_GET["host"] = host
div_data = div_data..' host="'..tostring(host)..'" '
end
if l7proto ~= "" and l7proto ~= nil then
if l7proto ~= "" and l7proto ~= nil and not string.starts(tostring(l7proto), 'all') then
if not isnumber(l7proto) then
l7proto = string.gsub(l7proto, "%.rrd", "")
local id = interface.getnDPIProtoId(l7proto)
if id ~= -1 then
l7proto = id
else
l7proto = ""
end
end
_GET["protocol"] = l7proto
div_data = div_data..' l7_proto_id="'..l7proto..'" '
end