mirror of
https://github.com/ntop/ntopng.git
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496 lines
20 KiB
Lua
496 lines
20 KiB
Lua
--
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-- (C) 2024 - 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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require "ntop_utils"
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require "check_redis_prefs"
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require "lua_utils_generic"
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local json = require "dkjson"
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-- ##############################################
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local asset_utils = {}
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local table_name = "assets"
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-- ##############################################
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local function partiallyFormatInfo(res)
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local res_formatted = {}
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for _, res_unformatted in pairs(res or {}) do
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local tmp = res_unformatted
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local json_info = json.decode(res_unformatted.json_info or "") or {}
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tmp["is_dns_server"] = ((json_info["dns_server"] or "false") == "true")
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tmp["is_dhcp_server"] = ((json_info["dhcp_server"] or "false") == "true")
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tmp["is_smtp_server"] = ((json_info["smtp_server"] or "false") == "true")
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tmp["is_ntp_server"] = ((json_info["ntp_server"] or "false") == "true")
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tmp["is_imap_server"] = ((json_info["imap_server"] or "false") == "true")
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tmp["is_pop_server"] = ((json_info["pop_server"] or "false") == "true")
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if tmp["is_dns_server"] then
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json_info["dns_server"] = nil
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end
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if tmp["is_dhcp_server"] then
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json_info["dhcp_server"] = nil
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end
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if tmp["is_smtp_server"] then
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json_info["smtp_server"] = nil
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end
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if tmp["is_ntp_server"] then
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json_info["ntp_server"] = nil
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end
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if tmp["is_imap_server"] then
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json_info["imap_server"] = nil
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end
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if tmp["is_pop_server"] then
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json_info["pop_server"] = nil
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end
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if json_info["os_type"] then
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tmp["os_type"] = json_info["os_type"]
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json_info["os_type"] = nil
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end
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local resolved_names = {}
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if table.len(json_info) > 0 then
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resolved_names["mdns_name"] = json_info["mdns_name"]
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resolved_names["dhcp_name"] = json_info["dhcp_name"]
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resolved_names["mdns_txt_name"] = json_info["mdns_txt_name"]
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resolved_names["netbios_name"] = json_info["netbios_name"]
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resolved_names["tls_name"] = json_info["tls_name"]
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resolved_names["http_name"] = json_info["http_name"]
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resolved_names["dns_name"] = json_info["dns_name"]
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if resolved_names["mdns_name"] then
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json_info["mdns_name"] = nil
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end
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if resolved_names["dhcp_name"] then
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json_info["dhcp_name"] = nil
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end
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if resolved_names["mdns_txt_name"] then
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json_info["mdns_txt_name"] = nil
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end
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if resolved_names["netbios_name"] then
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json_info["netbios_name"] = nil
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end
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if resolved_names["tls_name"] then
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json_info["tls_name"] = nil
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end
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if resolved_names["http_name"] then
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json_info["http_name"] = nil
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end
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if resolved_names["dns_name"] then
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json_info["dns_name"] = nil
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end
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tmp["names"] = resolved_names
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end
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tmp.json_info = json_info
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res_formatted[#res_formatted + 1] = tmp
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end
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return res_formatted
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end
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-- ##############################################
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local function getAssetInfo(ifid, key, type)
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if isEmptyString(key) then
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return nil
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end
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local query = string.format(
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"SELECT type, key, ifid, ip, mac, vlan, network, name, device_type, manufacturer, %s , %s, gateway_mac, json_info %s FROM %s WHERE key='%s' AND ifid=%d AND type='%s'",
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ternary(hasClickHouseSupport(), "toUnixTimestamp(last_seen) as last_seen", "last_seen"),
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ternary(hasClickHouseSupport(), "toUnixTimestamp(first_seen) as first_seen", "first_seen"),
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ternary(hasClickHouseSupport(), ", version", ""), table_name, key, ifid, type)
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local res = interface.alert_store_query(query)
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res = partiallyFormatInfo(res)
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return res
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end
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-- ##############################################
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-- This function, given a table, remove the characters that can bring errors to the DB
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local function cleanValues(table_to_clean)
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for key, value in pairs(table_to_clean or {}) do
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if type(value) == 'string' then
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table_to_clean[key] = string.gsub(value, "'", "")
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end
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end
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return table_to_clean
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end
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-- ##############################################
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-- This function is used to update entry and merge those info with in DB informations
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-- e.g. in case an host was already into the DB just update those data
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local function updateData(entry, ifid, type)
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local data = getAssetInfo(ifid, entry.key, type)
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if data and table.len(data) > 0 then
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data = data[1]
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entry.first_seen = data.first_seen -- Keep the old first_seen
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-- Merge the json_info field, note, that in case of duplicates, the data from
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-- entry table are used.
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local unified_json = table.merge(data.json_info or {}, entry.json_info or {})
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entry = cleanValues(entry)
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entry.json_info = json.encode(cleanValues(unified_json))
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end
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return entry
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end
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-- ##############################################
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local function updateJsonField(fields, new_fields)
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if fields then
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local json_info = json.decode(fields.json_info) or {}
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for field_name, field_value in pairs(new_fields or {}) do
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json_info[field_name] = field_value
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end
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fields.json_info = json.encode(json_info)
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end
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return fields
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end
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-- ##############################################
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local function getAssetData(ifid, order, sort, start, length, filters, asset_type, check_last_seen)
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if not ifid then
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ifid = interface.getId()
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end
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if sort == "ip" and hasClickHouseSupport() then
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sort = "toIPv6(ip)"
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end
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local where = ""
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-- Exception for the status filter, it's last_seen = 0 or last_seen != 0
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local status_filter = filters["status"]
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filters["status"] = nil
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for key, value in pairs(filters or {}) do
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where = where .. "AND"
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if tonumber(value) then
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value = tonumber(value)
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else
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value = string.format("'%s'", value)
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end
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where = string.format("%s %s=%s ", where, key, value)
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end
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if status_filter then
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where = string.format("%s AND %s%s%s", where, "last_seen", ternary(status_filter == "0", "=", "!="), "0")
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end
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filters["status"] = status_filter
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local sort_query = ""
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local limit_query = ""
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if sort and order then
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if sort == "last_seen" then
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-- Set last seen = 0 at start or end
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sort_query = string.format("ORDER BY (%s = 0) %s, %s %s", sort, order, sort, order)
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else
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sort_query = string.format("ORDER BY %s %s", sort, order)
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end
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end
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if start and length then
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limit_query = string.format("LIMIT %s, %s", start, length)
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end
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local query = nil
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if hasClickHouseSupport() then
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query = string.format(
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"SELECT a.type, a.key, a.ifid, a.ip, a.mac, a.vlan, a.network, a.name, a.device_type, a.manufacturer, %s, %s, a.gateway_mac, a.json_info, a.version" ..
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" FROM %s a INNER JOIN (SELECT type, key, MAX(version) AS max_version FROM %s WHERE type='%s' AND ifid=%d %s GROUP BY type, key) AS latest" ..
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" ON a.type = latest.type AND a.key = latest.key AND a.version = latest.max_version %s %s",
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ternary(hasClickHouseSupport(), "toUnixTimestamp(a.last_seen) as last_seen", "a.last_seen"),
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ternary(hasClickHouseSupport(), "toUnixTimestamp(a.first_seen) as first_seen", "a.first_seen"), table_name,
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table_name, asset_type, -- Only hosts here
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tonumber(ifid), where, sort_query, limit_query)
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else
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query = string.format(
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"SELECT type, key, ifid, ip, mac, vlan, network, name, device_type, manufacturer, last_seen, first_seen, gateway_mac, json_info" ..
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" FROM %s WHERE type='%s' AND ifid=%d %s %s %s", table_name, asset_type, -- Only hosts here
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tonumber(ifid), where, sort_query, limit_query)
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end
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return interface.alert_store_query(query)
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end
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-- ##############################################
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local function getNumAssets(ifid, filters, asset_type, check_last_seen)
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if not ifid then
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ifid = interface.getId()
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end
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local where = ""
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-- Exception for the status filter, it's last_seen = 0 or last_seen != 0
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local status_filter = filters["status"]
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filters["status"] = nil
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for key, value in pairs(filters) do
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where = where .. "AND"
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if tonumber(value) then
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value = tonumber(value)
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else
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value = string.format("'%s'", value)
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end
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where = string.format("%s %s=%s ", where, key, value)
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end
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if status_filter then
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where = string.format("%s AND %s%s%s", where, "last_seen", ternary(status_filter == "0", "=", "!="), "0")
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end
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filters["status"] = status_filter
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local query = nil
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if hasClickHouseSupport() then
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query = string.format(
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"SELECT count(*) as count FROM %s a INNER JOIN (SELECT type, key, MAX(version) AS max_version FROM %s WHERE type='%s' AND ifid=%d %s GROUP BY type, key) AS latest" ..
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" ON a.type = latest.type AND a.key = latest.key AND a.version = latest.max_version", table_name,
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table_name, asset_type, -- Only hosts here
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tonumber(ifid), where)
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else
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query = string.format("SELECT COUNT(*) as count " .. "FROM %s WHERE type='%s' %s AND ifid=%d", table_name,
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asset_type, where, ifid)
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end
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return interface.alert_store_query(query)
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end
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-- ##############################################
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local function get_mac_serialization_key(mac, ifid)
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return tostring(ifid) .. "_" .. mac
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end
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-- ##############################################
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-- @brief insert assetkey
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function asset_utils.getLastVersion(ifid)
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local query = string.format("SELECT version FROM %s WHERE ifid=%d ORDER BY version DESC LIMIT 1", table_name, ifid)
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local last_version = interface.alert_store_query(query)
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if table.len(last_version) == 0 then
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last_version = 0
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else
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last_version = last_version[1].version
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end
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return last_version
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end
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-- ##############################################
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-- @brief insert assetkey
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function asset_utils.insertHost(entry, version, ifid)
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local query = nil
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entry = updateData(entry, ifid, "host")
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if not isIPv4(entry["ip"]) and not isIPv6(entry["ip"]) then
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traceError(TRACE_ERROR, TRACE_CONSOLE, "Detected Asset without IP Address:\n")
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tprint(entry)
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return
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end
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if hasClickHouseSupport() then
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query = string.format("INSERT INTO %s " ..
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"(type, key, ifid, ip, mac, vlan, network, name, device_type, manufacturer, first_seen, last_seen, version, json_info) " ..
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"VALUES ('%s','%s', %u, '%s', '%s', %u, %u, %s, %u, %s, %u, %u, %u, '%s')",
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table_name, entry["type"], entry["key"], ifid, entry["ip"] or "", entry["mac"] or "", entry["vlan"] or 0,
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entry["network"] or 0, ternary(not isEmptyString(entry["name"]), string.format("'%s'", entry["name"]),
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"NULL"), entry["device_type"], ternary(not isEmptyString(entry["manufacturer"]),
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string.format("'%s'", entry["manufacturer"]), "NULL"), entry["first_seen"], entry["last_seen"] or 0,
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version, entry["json_info"] or "")
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else
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query = string.format("INSERT INTO %s " ..
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"(type, key, ifid, ip, mac, vlan, network, name, device_type, manufacturer, first_seen, last_seen, json_info) " ..
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"VALUES ('%s','%s', %u, '%s','%s', %u, %u, %s, %u, %s, %u, %u, '%s') " ..
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"ON CONFLICT(key) DO UPDATE SET last_seen = %u, first_seen = %u;", table_name,
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entry["type"], entry["key"], ifid, entry["ip"], entry["mac"] or "", entry["vlan"] or 0,
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entry["network"] or 0, ternary(not isEmptyString(entry["name"]), string.format("'%s'", entry["name"]),
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"NULL"), entry["device_type"], ternary(not isEmptyString(entry["manufacturer"]),
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string.format("'%s'", entry["manufacturer"]), "NULL"), entry["first_seen"], entry["last_seen"] or 0,
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entry["json_info"] or "", entry["last_seen"] or 0, entry["first_seen"] or 0)
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end
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return interface.alert_store_query(query)
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end
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function asset_utils.insertMac(entry, version, ifid)
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local query = nil
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entry = updateData(entry, ifid, "mac")
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if hasClickHouseSupport() then
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query = string.format("INSERT INTO %s " ..
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"(type, key, ifid, mac, manufacturer, vlan, device_type, first_seen, last_seen, version, json_info) " ..
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"SELECT '%s','%s', %u, '%s','%s', %u, %u, %u, %u, %u, '%s'", table_name,
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entry["type"], entry["key"], tonumber(ifid), entry["mac"], entry["manufacturer"], 0, -- VLAN
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tonumber(entry["device_type"]), tonumber(entry["first_seen"]), tonumber(entry["last_seen"] or 0),
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tonumber(version), entry["json_info"] or "")
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else
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query = string.format("INSERT INTO %s " ..
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"(type, key, ifid, mac, manufacturer, device_type, first_seen, last_seen, json_info) " ..
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"VALUES ('%s','%s', %u, '%s','%s', %u, %u, %u, '%s') " ..
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"ON CONFLICT(key) DO UPDATE SET last_seen = %u, first_seen = %u;", table_name,
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entry["type"], entry["key"], tonumber(ifid), entry["mac"], entry["manufacturer"],
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tonumber(entry["device_type"] or 0), tonumber(entry["first_seen"] or 0), tonumber(entry["last_seen"] or 0),
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entry["json_info"] or "", tonumber(entry["last_seen"] or 0), tonumber(entry["first_seen"]))
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end
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return interface.alert_store_query(query)
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end
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-- ##############################################
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function asset_utils.getDevicesAssets(ifid, order, sort, start, length, filters)
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return getAssetData(ifid, order, sort, start, length, filters, "mac" --[[ Asset Type ]] , false)
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end
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-- ##############################################
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-- Return the lists of inactive hosts from the DB
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function asset_utils.getHostsAssets(ifid, order, sort, start, length, filters)
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return getAssetData(ifid, order, sort, start, length, filters, "host" --[[ Asset Type ]] , true)
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end
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-- ##############################################
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-- Return the lists of inactive hosts from the DB
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function asset_utils.getNumDevices(ifid, filters)
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return getNumAssets(ifid, filters, "mac", false)
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end
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-- ##############################################
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-- Return the lists of inactive hosts from the DB
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function asset_utils.getNumAssets(ifid, filters)
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return getNumAssets(ifid, filters, "host", true)
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end
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-- ##############################################
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-- Return the lists of inactive hosts from the DB
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function asset_utils.getFilters(ifid)
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if not ifid then
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ifid = interface.getId()
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end
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local query = string.format("SELECT 'manufacturer' AS filter, manufacturer AS value, COUNT(*) AS count " ..
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"FROM %s where type='host' AND ifid=%d GROUP BY manufacturer UNION ALL " ..
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"SELECT 'device_type' AS filter, %s AS value, COUNT(*) AS count " ..
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"FROM %s where type='host' AND ifid=%d GROUP BY device_type UNION ALL " ..
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"SELECT 'vlan' AS filter, %s AS value, COUNT(*) AS count " ..
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"FROM %s where type='host' AND ifid=%d GROUP BY vlan UNION ALL " ..
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"SELECT 'network' AS filter, %s AS value, COUNT(*) AS count " ..
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"FROM %s where type='host' AND ifid=%d GROUP BY network", table_name, ifid,
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ternary(hasClickHouseSupport(), "CAST(device_type, 'String')", "CAST(device_type AS CHAR)"), table_name, ifid,
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ternary(hasClickHouseSupport(), "CAST(vlan, 'String')", "CAST(vlan AS CHAR)"), table_name, ifid, ternary(
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hasClickHouseSupport(), "CAST(network, 'String')", "CAST(network AS CHAR)"), table_name, ifid)
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local res = interface.alert_store_query(query)
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return res
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end
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-- ##############################################
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function asset_utils.getInactiveHostInfo(ifid, key)
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return getAssetInfo(ifid, key, "host")
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end
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-- ##############################################
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function asset_utils.getMacInfo(ifid, key)
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return getAssetInfo(ifid, key, "mac")
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end
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-- ##############################################
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-- Edit a list of macs with the specified trigger_alert value
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function asset_utils.editMacList(device_list, trigger_alert, ifid)
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for _, device in pairs(device_list) do
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asset_utils.editMac(device, trigger_alert, "allowed", ifid)
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end
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end
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-- ##############################################
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function asset_utils.editMac(device, trigger_alert, mac_status, ifid)
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if isMacAddress(device) then
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local key = get_mac_serialization_key(device, ifid)
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local fields = asset_utils.getMacInfo(ifid, key)
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if fields and table.len(fields) > 0 then
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fields = fields[1]
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fields = updateJsonField(fields, {
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device_status = mac_status,
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trigger_alert = trigger_alert
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})
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if hasClickHouseSupport() then
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asset_utils.insertMac(fields, tonumber(fields.version) + 1, tonumber(ifid))
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else
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local update_query = string.format(
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"UPDATE %s SET `json_info`='%s' WHERE type='mac' AND ifid=%d AND key='%s'", table_name,
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fields.json_info, fields.ifid, fields.key)
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interface.alert_store_query(update_query)
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end
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end
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end
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end
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-- ##############################################
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function asset_utils.deleteAll(ifid, type)
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local query = ""
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if hasClickHouseSupport() then
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query = string.format("ALTER TABLE %s DELETE WHERE type='%s' and ifid=%d", table_name, type, tonumber(ifid))
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else
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query = string.format("DELETE FROM %s WHERE type='%s' and ifid=%d", table_name, type, tonumber(ifid))
|
|
end
|
|
interface.alert_store_query(query)
|
|
end
|
|
|
|
-- ##############################################
|
|
|
|
function asset_utils.deleteMac(device, ifid)
|
|
local key = get_mac_serialization_key(device, ifid)
|
|
local query = ""
|
|
|
|
if hasClickHouseSupport() then
|
|
query = string.format("ALTER TABLE %s DELETE WHERE key='%s' and type='mac'", table_name, key)
|
|
else
|
|
query = string.format("DELETE FROM %s WHERE key='%s' and type='mac'", table_name, key)
|
|
end
|
|
|
|
interface.alert_store_query(query)
|
|
end
|
|
|
|
-- ##############################################
|
|
|
|
function asset_utils.deleteHost(ifid, serial_key)
|
|
local query = ""
|
|
|
|
if hasClickHouseSupport() then
|
|
query = string.format("ALTER TABLE %s DELETE WHERE key='%s' AND type='host' AND ifid=%s", table_name, serial_key, ifid)
|
|
else
|
|
query = string.format("DELETE FROM %s WHERE key='%s' and type='host' AND ifid=%s", table_name, serial_key, ifid)
|
|
end
|
|
|
|
interface.alert_store_query(query)
|
|
end
|
|
|
|
-- ##############################################
|
|
|
|
function asset_utils.deleteAllEntriesSince(ifid, type, last_seen)
|
|
local query = ""
|
|
|
|
if hasClickHouseSupport() then
|
|
query = string.format("ALTER TABLE %s DELETE WHERE type='%s' AND ifid=%s AND last_seen<%s AND last_seen != 0", table_name, type, ifid, last_seen)
|
|
else
|
|
query = string.format("DELETE FROM %s WHERE type='%s' AND ifid=%s AND last_seen<%s AND last_seen != 0", table_name, type, ifid, last_seen)
|
|
end
|
|
|
|
interface.alert_store_query(query)
|
|
end
|
|
|
|
return asset_utils
|