Reworked network discovery page (#6452)

scripts/lua/rest/v2/get/network/discovery/discover.lua

@@ -0,0 +1,142 @@
+--
+-- (C) 2021 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+local json = require "dkjson"
+local discover = require "discover_utils"
+local rest_utils = require "rest_utils"
+
+local os_filter = tonumber(_GET["operating_system"])
+local devtype_filter = tonumber(_GET["device_type"])
+local manuf_filter = _GET["manufacturer"]
+
+-- ################################################
+
+local doa_ox_fd = nil
+local doa_ox = nil
+
+local enable_doa_ox = false
+
+if(enable_doa_ox) then
+   local doa_ox = require "doa_ox"
+   doa_ox_fd = doa_ox.init("/tmp/doa_ox.update")
+end
+
+-- ################################################
+
+interface.select(ifname)
+
+local res = {}
+
+local discovered = discover.discover2table(ifname)
+
+-- ################################################
+
+if(enable_doa_ox) then
+  doa_ox.header(doa_ox_fd)
+end
+
+discovered["devices"] = discovered["devices"] or {}
+
+for _, el in pairs(discovered["devices"]) do
+  -- Manufacturer
+  local manufacturer = ""
+  if el["manufacturer"] then
+    manufacturer = el["manufacturer"]
+  else
+    manufacturer = get_manufacturer_mac(el["mac"])
+  end
+
+  local actual_manuf = manufacturer
+
+  if(el["modelName"] and (el["modelName"] ~= "")) then
+    manufacturer = manufacturer .. " ["..el["modelName"].."]"
+  end
+  el.manufacturer = manufacturer
+
+  -- Name
+  local name = ""
+  if el["sym"] then name = name .. el["sym"] end
+
+  if el["symIP"] then
+    if el["sym"] then
+      name = name .. " ["..el["symIP"].."]"
+    else
+      name = el["symIP"]
+    end
+  end
+  el.name = name
+
+  -- Retrieve information from L3 host
+  local host = interface.getHostInfo(el["ip"])
+
+  if(host ~= nil) then
+    el.os_type = host.os
+  end
+
+  el.os = discover.getOsIcon(el.os_type)
+
+  -- Device info
+  local devinfo = ""
+  if el["information"] then devinfo = devinfo .. table.concat(el["information"], "<br>") end
+  if el["url"] then
+    if el["information"] then
+      devinfo = devinfo .. "<br>"..el["url"]
+    else
+      devinfo = devinfo .. el["url"]
+    end
+  end
+  el.info = devinfo
+
+  if(enable_doa_ox) then
+    if el.os then
+      el.operatingSystem = discover.getOsName(el.os)
+    end
+
+    doa_ox.device2OX(doa_ox_fd, el)
+  end
+
+  -- Filter
+  if (os_filter ~= nil) and (el.os_type ~= os_filter) then
+    goto continue
+  end
+  if (manuf_filter ~= nil) and (actual_manuf ~= manuf_filter) then
+    goto continue
+  end
+
+  if (devtype_filter ~= nil) and (discover.devtype2id(el.device_type) ~= devtype_filter) then
+    goto continue
+  end
+
+  local rec = {}
+  
+  rec.column_ip = ip2detailshref(el["ip"], nil, nil, el["ip"])
+    ..ternary(el["icon"], "&nbsp;" ..(el["icon"] or "").. "&nbsp;", "")
+    ..ternary(el["ghost"], " <font color=red>" ..(discover.ghost_icon or "").. "</font>", "")
+
+  rec.column_mac = [[<a href="]] ..ntop.getHttpPrefix().. [[/lua/mac_details.lua?host=]] ..el["mac"].. [[">]] ..get_symbolic_mac(el["mac"], true).. [[</a>]]
+  rec.column_name = el.name
+  rec.column_info = el.info
+  rec.column_device = el["device_label"]
+  rec.column_manufacturer = el.manufacturer
+  rec.column_os = el.os
+
+  res[#res + 1] = rec
+
+::continue::
+end
+
+if(enable_doa_ox) then
+  doa_ox.term(doa_ox_fd)
+end
+
+-- ################################################
+
+rest_utils.extended_answer(rest_utils.consts.success.ok, res, {
+  ["recordsFiltered"] = #res,
+  ["recordsTotal"] = #res
+})