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--
-- (C) 2013-22 - ntop.org
--
dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "lua_utils"
local protos_utils = require("protos_utils")
local page_utils = require("page_utils")
local json = require("dkjson")
sendHTTPContentTypeHeader('text/html')
-- Table parameters
local currentPage = _GET["currentPage"]
local perPage = _GET["perPage"]
local sortColumn = _GET["sortColumn"]
local sortOrder = _GET["sortOrder"]
local proto_filter = _GET["l7proto"]
local category_filter = _GET["category"]
local sortPrefs = "ndpi_application_category"
local custom_protos = protos_utils.parseProtosTxt()
local proto_to_num_rules = {}
local applications = interface.getnDPIProtocols()
for proto, rules in pairs(custom_protos) do
proto_to_num_rules[proto] = #rules
end
local function makeApplicationHostsList(appname)
local hosts_list = {}
for _, rule in ipairs(custom_protos[appname] or {}) do
hosts_list[#hosts_list + 1] = rule.value
end
return table.concat(hosts_list, ",")
end
if((sortColumn == nil) or (sortColumn == "column_"))then
sortColumn = getDefaultTableSort(sortPrefs)
else
if((sortColumn ~= "column_")
and (sortColumn ~= "")) then
tablePreferences("sort_"..sortPrefs,sortColumn)
end
end
if(sortOrder == nil) then
sortOrder = getDefaultTableSortOrder(sortPrefs)
else
if((sortColumn ~= "column_")
and (sortColumn ~= "")) then
tablePreferences("sort_order_"..sortPrefs,sortOrder)
end
end
if(currentPage == nil) then
currentPage = 1
else
currentPage = tonumber(currentPage)
end
if(perPage == nil) then
perPage = getDefaultTableSize()
else
perPage = tonumber(perPage)
tablePreferences("rows_number", perPage)
end
interface.select(ifname)
if category_filter ~= nil and starts(category_filter, "cat_") then
category_filter = split(category_filter, "cat_")[2]
end
local to_skip = (currentPage-1) * perPage
if(sortOrder == "desc") then sOrder = rev_insensitive else sOrder = asc_insensitive end
local sorter = {}
local num_apps = 0
for app_name, app_id in pairs(applications) do
if app_name == "Unknown" then
-- prevent the Unknown protocol from being re-assigned
-- nDPI bug?
goto continue
end
local cat = ntop.getnDPIProtoCategory(tonumber(app_id))
if not isEmptyString(proto_filter) then
if tostring(app_id) ~= proto_filter then
goto continue
end
end
if not isEmptyString(category_filter) then
if tostring(cat.id) ~= category_filter then
goto continue
end
end
applications[app_name] = {app_name = app_name, app_id = app_id, cat = cat}
num_apps = num_apps + 1
if sortColumn == "column_" or sortColumn == "column_ndpi_application" then
sorter[app_name] = app_name
elseif sortColumn == "column_ndpi_application_category" then
sorter[app_name] = cat["name"]
elseif sortColumn == "column_num_hosts" then
sorter[app_name] = proto_to_num_rules[app_name] or 0
end
::continue::
end
local categories = interface.getnDPICategories()
local res_formatted = {}
if not isEmptyString(proto_filter) then
num_apps = 1
end
local cur_num = 0
for app, _ in pairsByValues(sorter, sOrder) do
app = applications[app]
cur_num = cur_num + 1
if cur_num <= to_skip then
goto continue
elseif cur_num > to_skip + perPage then
break
end
local record = {}
record["column_ndpi_application_id"] = tostring(app["app_id"])
record["column_ndpi_application_category_id"] = tostring(app["cat"]["id"])
record["column_ndpi_application"] = app["app_name"]
record["column_num_hosts"] = proto_to_num_rules[app["app_name"]] or 0
record["column_application_hosts"] = makeApplicationHostsList(app["app_name"])
record["column_is_custom"] = ntop.isCustomApplication(tonumber(app["app_id"]))
cat_select_dropdown = '<select class="form-select" style="width:320px;" name="proto_' .. app["app_id"] .. '">'
local current_id = tostring(app["cat"]["id"])
for cat_name, cat_id in pairsByKeys(categories, asc_insensitive) do
cat_select_dropdown = cat_select_dropdown .. [[<option value="cat_]] ..cat_id .. [["]] ..
ternary(cat_id == current_id, " selected", "") .. [[>]] ..
getCategoryLabel(cat_name) .. [[</option>]]
end
cat_select_dropdown = cat_select_dropdown .. "</select>"
record["column_ndpi_application_category"] = cat_select_dropdown
res_formatted[#res_formatted + 1] = record
::continue::
end
local result = {}
result["perPage"] = perPage
result["currentPage"] = currentPage
result["totalRows"] = num_apps
result["data"] = res_formatted
result["sort"] = {{sortColumn, sortOrder}}
print(json.encode(result, nil))
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