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https://github.com/ntop/ntopng.git
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121 lines
2.7 KiB
Lua
121 lines
2.7 KiB
Lua
--
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-- (C) 2017-20 - ntop.org
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--
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local dirs = ntop.getDirs()
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package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
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local json = require("dkjson")
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local dhcp_utils = require("dhcp_utils")
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require "lua_utils"
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local ifid = _GET["ifid"]
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-- Table parameters
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local currentPage = _GET["currentPage"]
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local perPage = _GET["perPage"]
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local sortColumn = _GET["sortColumn"]
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local sortOrder = _GET["sortOrder"]
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local sortPrefs = "dhcp_ranges"
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sendHTTPContentTypeHeader('application/json')
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if((ifid == nil) or (not isAdministrator())) then
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return
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end
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interface.select(getInterfaceName(ifid))
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-- ################################################
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if isEmptyString(sortColumn) or sortColumn == "column_" then
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sortColumn = getDefaultTableSort(sortPrefs)
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else
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if((sortColumn ~= "column_")
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and (sortColumn ~= "")) then
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tablePreferences("sort_"..sortPrefs, sortColumn)
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end
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end
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if isEmptyString(_GET["sortColumn"]) then
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sortOrder = getDefaultTableSortOrder(sortPrefs, true)
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end
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if((_GET["sortColumn"] ~= "column_")
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and (_GET["sortColumn"] ~= "")) then
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tablePreferences("sort_order_"..sortPrefs, sortOrder, true)
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end
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if(currentPage == nil) then
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currentPage = 1
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else
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currentPage = tonumber(currentPage)
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end
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if(perPage == nil) then
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perPage = getDefaultTableSize()
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else
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perPage = tonumber(perPage)
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tablePreferences("rows_number", perPage)
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end
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local sOrder
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local to_skip = (currentPage-1) * perPage
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if((sortColumn == "column_first_ip") or (sortColumn == "column_last_ip")) then
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sOrder = ternary(sortOrder == "desc", ip_address_rev, ip_address_asc)
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else
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sOrder = ternary(sortOrder == "desc", rev_insensitive, asc_insensitive)
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end
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-- ################################################
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local ranges = dhcp_utils.listRanges(ifid)
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local totalRows = 0
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local sort_to_key = {}
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for key, range in pairs(ranges) do
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totalRows = totalRows + 1
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if sortColumn == "column_first_ip" then
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sort_to_key[key] = range[1]
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elseif sortColumn == "column_last_ip" then
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sort_to_key[key] = range[2]
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else
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-- default
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sort_to_key[key] = key
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end
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end
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-- ################################################
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local res = {}
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local i = 0
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for key in pairsByValues(sort_to_key, sOrder) do
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if i >= to_skip + perPage then
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break
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end
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if (i >= to_skip) then
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local range = ranges[key]
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res[#res + 1] = {
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column_first_ip = range[1],
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column_last_ip = range[2],
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}
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end
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i = i + 1
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end
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-- ################################################
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local result = {}
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result["perPage"] = perPage
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result["currentPage"] = currentPage
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result["totalRows"] = totalRows
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result["data"] = res
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result["sort"] = {{sortColumn, sortOrder}}
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print(json.encode(result))
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