EVOLUTION-MANAGER

Edit File: if_stats.lua

--
-- (C) 2013-24 - ntop.org
--
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
if ((dirs.scriptdir ~= nil) and (dirs.scriptdir ~= "")) then
    package.path = dirs.scriptdir .. "/lua/modules/?.lua;" .. package.path
end

local top_sites_update
local snmp_utils

if ntop.isPro() then
    package.path = dirs.installdir .. "/scripts/lua/pro/modules/?.lua;" .. package.path
    package.path = dirs.installdir .. "/pro/scripts/callbacks/?.lua;" .. package.path
    snmp_utils = require "snmp_utils"
    top_sites_update = require("host_sites_update")
end

require "db_utils"
require "lua_utils"
require "prefs_utils"

local json = require "dkjson"
local template = require "template_utils"
local format_utils = require "format_utils"
local top_talkers_utils = require "top_talkers_utils"
local internals_utils = require "internals_utils"
local page_utils = require("page_utils")
local ui_utils = require("ui_utils")
local auth = require "auth"
local behavior_utils = require("behavior_utils")
local graph_utils = require "graph_utils"
local recording_utils = require "recording_utils"
local companion_interface_utils = require "companion_interface_utils"
local storage_utils = require "storage_utils"
local have_nedge = ntop.isnEdge()
local sites_granularities = nil
local show_zmq_encryption_public_key = false

if ntop.isPro() then
    shaper_utils = require("shaper_utils")
end

sendHTTPContentTypeHeader('text/html')

page = _GET["page"]
ifid = _GET["ifid"]

-- parse interface names and possibly fall back to the selected interface:
-- priority goes to the interface id
if ifid ~= nil and ifid ~= "" then
    if_name = getInterfaceName(ifid)
else
    -- fall-back to the default interface
    if_name = ifname
    ifid = interface.name2id(ifname)
end

interface.select(ifname)

ifname_clean = "iface_" .. tostring(ifid)
msg = ""

local is_packet_interface = interface.isPacketInterface()
local is_pcap_dump = interface.isPcapDumpInterface()

local ifstats = interface.getStats()
local is_sub_interface = interface.isSubInterface()

-- tprint(ifstats.stats.hosts_rcvd_only .. " / " .. ifstats.stats.hosts)

if page == "syslog_producers" and not ifstats.isSyslog then
    page = "overview"
end

local is_mirrored_traffic = false
local is_mirrored_traffic_pref = string.format("ntopng.prefs.ifid_%d.is_traffic_mirrored", interface.getId())
if not ntop.isnEdge() and is_packet_interface then
    is_mirrored_traffic = ternary(ntop.getPref(is_mirrored_traffic_pref) == '1', true, false)
end

local service_map_available = false
local periodicity_map_available = false
service_map_available, periodicity_map_available = behavior_utils.mapsAvailable()

local disaggregation_criterion_key = "ntopng.prefs.dynamic_sub_interfaces.ifid_" .. tostring(ifid) .. ".mode"
local host_threshold_rules_key = "ntopng.prefs.ifid_" .. tostring(ifid) .. ".host_threshold_rules"

local charts_available = areInterfaceTimeseriesEnabled(ifid)
local zmq_charts_available = charts_available and not interface.isView()

function percentage(value, total)
    if (total > 0) then
        local pctg = round((value * 100) / total, 2)
        if (pctg > 0) then
            return (" [ " .. pctg .. " % ] ")
        end
    end

return ("")
end

function inline_input_form(name, placeholder, tooltip, value, can_edit, input_opts, input_class, measure_unit)
    if (can_edit) then
        print(
            '<input style="width:36em;" title="' .. tooltip .. '" ' .. (input_opts or "") .. ' class="form-control ' ..
                (input_class or "") .. '" name="' .. name .. '" placeholder="' .. placeholder .. '" value="')
        if (value ~= nil) then
            print(value .. "")
        end
        print [[">]]
        if (measure_unit) then
            print([[<span class='ms-1 align-middle'>]] .. i18n(measure_unit) .. [[</span>]])
        end
    else
        if (value ~= nil) then
            print(value)
        end
    end
end

function inline_select_form(name, keys, values, curval)
    print [[<select class="form-select" style="width:12em; display:inline;" name="]]
    print(name)
    print [[">]]
    for idx, k in ipairs(keys) do
        local v = values[idx]
        print [[<option value="]]
        print(v)
        print [[" ]]

if curval == v then
            print("selected")
        end

print [[>]]
        print(k)
        print [[</option>]]
    end
    print [[</select>]]
end

-- this is a user-browseable page, so we must return counters from
-- the latest reset as the user may have chosen to reset statistics at some point
if ifstats.stats and ifstats.stats_since_reset then
    -- override stats with the values calculated from the latest user reset
    for k, v in pairs(ifstats.stats_since_reset) do
        ifstats.stats[k] = v
    end
end

if ifstats.zmqRecvStats and ifstats.zmqRecvStats_since_reset then
    -- override stats with the values calculated from the latest user reset
    for k, v in pairs(ifstats.zmqRecvStats_since_reset) do
        ifstats.zmqRecvStats[k] = v
    end
end

local ext_interfaces = {}

-- refresh traffic recording availability as one may have installed n2disk
-- with a running instance of ntopng
recording_utils.checkAvailable()

if recording_utils.isAvailable() and recording_utils.isSupportedZMQInterface(ifid) then
    ext_interfaces = recording_utils.getExtInterfaces(ifid)
end

if (isAdministrator()) then
    if (page == "config") and (not table.empty(_POST)) then
        local custom_name = _POST["custom_name"]

if starts(custom_name, "tcp:__") then
            -- Was mangled by sanitization
            custom_name = "tcp://" .. string.sub(custom_name, 7)
        end

ntop.setCache('ntopng.prefs.ifid_' .. ifstats.id .. '.name', custom_name)

local ifspeed_cache = 'ntopng.prefs.ifid_' .. ifstats.id .. '.speed'
        if isEmptyString(_POST["ifSpeed"]) then
            ntop.delCache(ifspeed_cache)
        else
            ntop.setCache(ifspeed_cache, _POST["ifSpeed"])
        end

if is_packet_interface then
            if _POST["gw_macs"] ~= nil then
                -- Gw MAC addresses - used to compute traffic direction
                local gw_macs_set = getGwMacsSet(ifstats.id)
                ntop.delCache(gw_macs_set)
                for _, mac in pairs(split(_POST["gw_macs"] or "", ",")) do
                    mac = trimSpace(mac)
                    if not isEmptyString(mac) then
                        ntop.setMembersCache(gw_macs_set, mac)
                    end
                end
                interface.reloadGwMacs()
            end
        end

if not ntop.isnEdge() and is_packet_interface then
            if _POST["is_mirrored_traffic"] == "1" then
                is_mirrored_traffic = true
            else
                is_mirrored_traffic = false
            end

ntop.setPref(is_mirrored_traffic_pref, ternary(is_mirrored_traffic == true, '1', '0'))
            interface.updateTrafficMirrored()
        end

local sf = tonumber(_POST["scaling_factor"])
        if (sf == nil) then
            sf = 1
        end
        ntop.setCache("ntopng.prefs.iface_" .. tostring(ifid) .. '.scaling_factor', tostring(sf))
        interface.loadScalingFactorPrefs()
    end
end

page_utils.print_header_and_set_active_menu_entry(page_utils.menu_entries.interface, {
    ifname = getHumanReadableInterfaceName(if_name)
})

dofile(dirs.installdir .. "/scripts/lua/inc/menu.lua")

-- print(msg)

if _SERVER["REQUEST_METHOD"] == "POST" and _POST["companion_interface"] ~= nil then
    companion_interface_utils.setCompanion(ifstats.id, _POST["companion_interface"])
end

if _SERVER["REQUEST_METHOD"] == "POST" and _POST["disaggregation_criterion"] ~= nil then
    if _POST["disaggregation_criterion"] == "none" then
        ntop.delCache(disaggregation_criterion_key)
    else
        ntop.setCache(disaggregation_criterion_key, _POST["disaggregation_criterion"])
    end
end

if _SERVER["REQUEST_METHOD"] == "POST" and _POST["host_threshold_rules"] ~= nil then
    if _POST["host_threshold_rules"] == "none" then
        ntop.delCache(host_threshold_rules_key)
    else
        ntop.setCache(host_threshold_rules_key, _POST["host_threshold_rules"])
    end
end

if _SERVER["REQUEST_METHOD"] == "POST" and not isEmptyString(_POST["traffic_recording_provider"]) then
    local prev_provider = recording_utils.getCurrentTrafficRecordingProvider(ifstats.id)

-- if the current provider is the builtin ntopng and we are changing to another provider
    -- then it may be necessary to stop the builtin ntopng
    if prev_provider == "ntopng" and _POST["traffic_recording_provider"] ~= "ntopng" then
        recording_utils.stop(ifstats.id)
        ntop.setCache('ntopng.prefs.ifid_' .. ifstats.id .. '.traffic_recording.enabled', "false")
    end

recording_utils.setCurrentTrafficRecordingProvider(ifstats.id, _POST["traffic_recording_provider"])
end

local has_traffic_recording_page = (recording_utils.isAvailable() and
                                       (is_packet_interface or (ifstats.isView) -- Allows view interfaces (e.g., views of ZMQ)
    or ((recording_utils.isSupportedZMQInterface(ifid) and not table.empty(ext_interfaces))) or
                                           (recording_utils.getCurrentTrafficRecordingProvider(ifid) ~= "ntopng")))

local dismiss_recording_providers_reminder = recording_utils.isExternalProvidersReminderDismissed(ifstats.id)

local url = ntop.getHttpPrefix() .. '/lua/if_stats.lua?ifid=' .. ifid

--  Added global javascript variable, in order to disable the refresh of pie chart in case
--  of historical interface
print('\n<script>var refresh = ' .. interface.getStatsUpdateFreq(ifstats.id) .. ' * 1000; /* ms */;</script>\n')

local short_name = getHumanReadableInterfaceName(ifname)
local title = i18n("interface") .. ": " .. shortenCollapse(short_name)

if (ntop.isPro()) then
    sites_granularities = top_sites_update.getGranularitySites(nil, nil, ifid, true)
end

page_utils.print_navbar(title, url, {{
    hidden = only_historical,
    active = page == "overview" or page == nil,
    page_name = "overview",
    label = "<i class=\"fas fa-lg fa-home\"></i>"
}, {
    hidden = is_packet_interface or ntop.isnEdge() or interface.isView(),
    active = page == "nprobe",
    page_name = "nprobe",
    label = "nProbe"
}, {
    hidden = not is_packet_interface or ntop.isnEdge() or interface.isView(),
    active = page == "networks",
    page_name = "networks",
    label = i18n("networks")
}, {
    hidden = have_nedge or not ifstats or ifstats.stats.packets == 0 or ntop.isnEdge(),
    active = page == "packets",
    page_name = "packets",
    label = i18n("packets")
}, {
    hidden = not ifstats or not ifstats["has_macs"] or ntop.isnEdge(),
    active = page == "DSCP",
    page_name = "DSCP",
    label = i18n("dscp")
}, {
    active = page == "ndpi",
    page_name = "ndpi",
    label = i18n("applications")
}, {
    hidden = have_nedge,
    active = page == "ICMP",
    page_name = "ICMP",
    label = i18n("icmp")
}, {
    hidden = not ifstats or not ifstats["has_macs"] or ntop.isnEdge(),
    active = page == "ARP",
    page_name = "ARP",
    label = i18n("arp")
}, {
    hidden = (sites_granularities == nil or table.len(sites_granularities) == 0),
    active = page == "sites",
    page_name = "sites",
    label = i18n("sites_page.sites")
}, {
    hidden = not charts_available,
    active = page == "historical",
    page_name = "historical",
    label = "<i class='fas fa-lg fa-chart-area' title='" .. i18n("historical") .. "'></i>"
}, {
    hidden = have_nedge or not ifstats or table.empty(ifstats.profiles),
    active = page == "trafficprofiles",
    page_name = "trafficprofiles",
    label = "<i class=\"fas fa-lg fa-user-md\"></i>"
}, {
    hidden = not has_traffic_recording_page,
    active = page == "traffic_recording",
    page_name = "traffic_recording",
    label = "<i class='fas fa-lg fa-hdd' title='" .. i18n("traffic_recording.traffic_recording") .. "'></i>"
}, {
    hidden = not areAlertsEnabled() or not auth.has_capability(auth.capabilities.alerts),
    active = page == "alerts",
    page_name = "alerts",
    url = ntop.getHttpPrefix() .. "/lua/alert_stats.lua?&page=interface",
    label = "<i class='fas fa-lg fa-exclamation-triangle' title='" .. i18n("alerts_dashboard.alerts") .. "'></i>"
}, {
    hidden = not hasTrafficReport(),
    active = page == "traffic_report",
    page_name = "traffic_report",
    label = "<i class='fas fa-lg fa-file-alt report-icon' title='" .. i18n("report.traffic_report") .. "'></i>"
}, {
    hidden = not isAdministrator() or is_pcap_dump,
    active = page == "config",
    page_name = "config",
    label = "<i class='fas fa-lg fa-cog' title='" .. i18n("settings") .. "'></i>"
}, {
    active = page == "internals",
    page_name = "internals",
    label = "<i class='fas fa-lg fa-wrench' title='" .. i18n("status") .. "'></i>"
}, {
    hidden = have_nedge or not isAdministrator() or not ntop.isEnterpriseM() or is_sub_interface or ifstats.isView,
    active = page == "sub_interfaces",
    page_name = "sub_interfaces",
    label = "<i class='fas fa-lg fa-code-branch' title='" .. i18n("sub_interfaces.disaggregation") .. "'></i>"
}, {
    hidden = have_nedge or not isAdministrator() or not ifstats.isSyslog,
    active = page == "syslog_producers",
    page_name = "syslog_producers",
    label = "<i class='fas fa-lg fa-hand-holding' title='" .. i18n("syslog.producers") .. "'></i>"
}, {
    hidden = not isAdministrator() or not ifstats.has_macs or have_nedge,
    active = page == "unassigned_pool_devices",
    page_name = "unassigned_pool_devices",
    label = "<i class='fas fa-lg fa-user-slash' title='" .. i18n("unknown_devices.unassigned_devices") .. "'></i>"
}, {
    hidden = not isAdministrator() or is_pcap_dump or interface.isZMQInterface(),
    active = page == "dhcp",
    page_name = "dhcp",
    label = "<i class='fas fa-lg fa-bolt' title='" .. i18n("dhcp.dhcp") .. "'></i>"
}, {
    hidden = (not periodicity_map_available),
    page_name = "periodicity_map",
    url = ntop.getHttpPrefix() .. "/lua/pro/enterprise/network_maps.lua?map=periodicity_map",
    label = "<i class=\"fas fa-lg fa-clock\"></i>"
}, {
    hidden = (not service_map_available),
    page_name = "service_map",
    url = ntop.getHttpPrefix() .. "/lua/pro/enterprise/network_maps.lua?map=service_map",
    label = "<i class=\"fas fa-lg fa-concierge-bell\"></i>"
}})

print(template.gen("modal_confirm_dialog.html", {
    dialog = {
        id = "reset_stats_dialog",
        action = "resetCounters(false)",
        title = i18n("reset_if_title"),
        message = i18n("reset_if_message"),
        confirm = i18n("reset"),
        confirm_button = "btn-danger"
    }
}))

print(template.gen("modal_confirm_dialog.html", {
    dialog = {
        id = "reset_drops_dialog",
        action = "resetCounters(true)",
        title = i18n("reset_drops_if_title"),
        message = i18n("reset_drops_if_message"),
        confirm = i18n("reset"),
        confirm_button = "btn-danger"
    }
}))

if ((page == "overview") or (page == nil)) then
    local tags = {
        ifid = ifstats.id
    }
    print("<div class='table-responsive-xl'>")

print("<table class=\"table table-striped table-bordered mb-0\">\n")
    print("<tr><th width=15%>" .. i18n("if_stats_overview.id") .. "</th><td colspan=6>" .. ifstats.id .. " ")

if (ifstats.description ~= ifstats.name) then
        print(" (" .. ifstats.description .. ")")
    end
    print("</td></tr>\n")

if isAdministrator() and (not is_pcap_dump and ifstats["type"] ~= "netfilter") then
        print("<tr><th width=250>" .. i18n("if_stats_overview.state") .. "</th><td colspan=6>")
        state = toggleTableButton("", "", i18n("if_stats_overview.active"), "1", "primary",
            i18n("if_stats_overview.paused"), "0", "primary", "toggle_local",
            "ntopng.prefs.ifid_" .. tostring(ifid) .. "_not_idle")

if (state == "0") then
            on_state = true
        else
            on_state = false
        end

interface.setInterfaceIdleState(on_state)

print("</td></tr>\n")
    end

local nprobe_interface, nprobe_version, nprobe_probe_ip, nprobe_probe_public_ip, nprobe_edition, nprobe_license,
        nprobe_maintenance = {}, {}, {}, {}, {}, {}, {}
    local probes_stats = ifstats.probes or {}

if interface.isView() then
        local zmq_stats = {}
        local exporters_stats = {}
        for interface_name, _ in pairsByKeys(interface.getIfNames() or {}) do
            interface.select(interface_name)
            local tmp = interface.getStats()
            for k, v in pairs(tmp.probes or {}) do
                probes_stats[k] = v
            end
            for k, v in pairs(tmp.exporters or {}) do
                if not exporters_stats[k] then
                    exporters_stats[k] = {}
                end
                for key_stat, value_stat in pairs(v) do
                    exporters_stats[k][key_stat] = value_stat + (exporters_stats[k][key_stat] or 0)
                end
            end
            for k, v in pairs(tmp.zmqRecvStats or {}) do
                zmq_stats[k] = (zmq_stats[k] or 0) + v
            end
        end
        ifstats.zmqRecvStats = zmq_stats
        ifstats.exporters = exporters_stats
        interface.select(ifstats.id)
    end

local tot_num_nprobes = table.len(probes_stats or {})
    local max_num_nprobes = 4
    local cur_num_nprobes = 0

if tot_num_nprobes > 0 then
        print("<tr><th nowrap>" .. i18n("if_stats_overview.remote_probe") .. "</th>")
        local msg = ""
        if ntop.isEnterpriseM() then
            msg = i18n("if_stats_overview.remote_probe_collecting_from_x_devices", {
                num = tot_num_nprobes,
                url = ntop.getHttpPrefix() .. "/lua/pro/enterprise/probes.lua"
            })
        else
            msg = i18n("if_stats_overview.remote_probe_collecting_from_x_devices_no_link", {
                num = tot_num_nprobes,
            })
        end

print("<td colspan=6 nowrap>" .. msg .. "</td>")
        print("</tr>")
    end

if cur_num_nprobes > 0 then
        local max_items_per_row = 3
        local cur_i = 0

print("<tr>")

if not interface.isView() then
            if not isEmptyString(ifstats["remote_pps"]) or not isEmptyString(ifstats["remote_bps"]) then
                if cur_i >= max_items_per_row then
                    print("</tr><tr>");
                    cur_i = 0
                end

print("<th nowrap>" .. i18n("if_stats_overview.probe_throughput") .. "</th>")
                print('<td nowrap><span id="if_zmq_remote_bps">' .. format_utils.bitsToSize(ifstats["remote_bps"]) ..
                          '</span>')
                print(' [<span id="if_zmq_remote_pps">' .. format_utils.pktsToSize(ifstats["remote_pps"]) ..
                          '</span>]</td>')

cur_i = cur_i + 1
            end
        end

if ifstats["timeout.lifetime"] or 0 > 0 then
            if cur_i >= max_items_per_row then
                print("</tr><tr>");
                cur_i = 0
            end

print(
                "<th width='15%'><details><summary><span class='ntop_notes' data-bs-toggle='tooltip' data-placement='right' title='" ..
                    i18n("click_to_expand") .. "'>")
            print(i18n("if_stats_overview.probe_timeout_lifetime") .. " <i class='fas fa-question-circle '></i>")
            print("</span></summary><small><span>" .. i18n("if_stats_overview.note_lifetime_timeout") ..
                      "</span></small></details></th>")

print("<td>")

if ((ifstats["timeout.collected_lifetime"] ~= nil) and (ifstats["timeout.collected_lifetime"] > 0)) then
                -- We're in collector mode on the nProbe side
                print(" " .. secondsToTime(ifstats["timeout.lifetime"]) .. " [" ..
                          i18n("if_stats_overview.remote_flow_lifetime") .. ": " ..
                          secondsToTime(ifstats["timeout.collected_lifetime"]) .. "]")
            else
                -- Modern nProbe in non-flow collector mode or old nProbe
                print(secondsToTime(ifstats["timeout.lifetime"]))
            end
            print("</td>")
            cur_i = cur_i + 1
        end

if (ifstats["timeout.idle"] or 0) > 0 then
            if cur_i >= max_items_per_row then
                print("</tr><tr>");
                cur_i = 0
            end
            print("<th nowrap>" .. i18n("if_stats_overview.probe_timeout_idle") .. "</th><td nowrap>" ..
                      secondsToTime(ifstats["timeout.idle"]) .. "</td>")
            cur_i = cur_i + 1
        end

if not isEmptyString(ifstats["probe.local_time"]) and not isEmptyString(ifstats["probe.remote_time"]) then
            local tdiff = math.abs(ifstats["probe.local_time"] - ifstats["probe.remote_time"])

if tdiff > 0 then
                if cur_i >= max_items_per_row then
                    print("</tr><tr>");
                    cur_i = 0
                end
                print("<th nowrap>" .. i18n("if_stats_overview.remote_probe_time") ..
                          " <sup><i class='fas fa-question-circle ' title='" ..
                          i18n("if_stats_overview.note_remote_probe_time") .. "'></i></sup>" .. "</th><td>")

if (tdiff > 10) then
                    print("<font color=red>")
                end
                print(formatValue(tdiff) .. " sec")
                if (tdiff > 10) then
                    print("</font>")
                end

print("</td>")
                cur_i = cur_i + 1
            end
        end

local has_drops_export_queue_full = (tonumber(ifstats["zmq.drops.export_queue_full"]) and
                                                tonumber(ifstats["zmq.drops.export_queue_full"]) > 0)
        local has_drops_flow_collection_drops = (tonumber(ifstats["zmq.drops.flow_collection_drops"]) or 0) > 0
        local has_drops_flow_collection_udp_socket_drops = (tonumber(
            ifstats["zmq.drops.flow_collection_udp_socket_drops"]) or 0) > 0
        local has_remote_drops = (has_drops_export_queue_full or has_drops_flow_collection_drops)

if has_drops_export_queue_full then
            local span_class = ' '

if cur_i >= max_items_per_row then
                print("</tr><tr>");
                cur_i = 0
            end
            print("<th nowrap>" .. i18n("if_stats_overview.probe_zmq_drops_export_queue_full") ..
                      " <sup><i class='fas fa-question-circle ' title='" ..
                      i18n("if_stats_overview.note_probe_zmq_drops_export_queue_full") .. "'></i></sup></th>")
            print("<td nowrap><span " .. span_class .. " id=if_zmq_drops_export_queue_full>" ..
                      formatValue(ifstats["zmq.drops.export_queue_full"]) ..
                      "</span> <span id=if_zmq_drops_export_queue_full_trend></span></td>")
            cur_i = cur_i + 1
        end

if has_drops_flow_collection_drops then
            local span_class = ' '

if cur_i >= max_items_per_row then
                print("</tr><tr>");
                cur_i = 0
            end
            print(
                "<th><details><summary><span class='ntop_notes' data-bs-toggle='tooltip' data-placement='right' title='" ..
                    i18n("click_to_expand") .. "'>")
            print(i18n("if_stats_overview.probe_zmq_drops_flow_collection_drops") ..
                      " <i class='fas fa-question-circle '></i>")
            print("</span></summary><small><span>" ..
                      i18n("if_stats_overview.note_probe_zmq_drops_flow_collection_drops") ..
                      "</span></small></details></th>")
            print("<td nowrap><span " .. span_class .. " id=if_zmq_drops_flow_collection_drops>" ..
                      formatValue(ifstats["zmq.drops.flow_collection_drops"]) ..
                      "</span> <span id=if_zmq_drops_flow_collection_drops_trend></span></td>")
            cur_i = cur_i + 1
        end

if has_drops_flow_collection_udp_socket_drops then
            local span_class = ' '

if cur_i >= max_items_per_row then
                print("</tr><tr>");
                cur_i = 0
            end
            print("<th nowrap>" .. i18n("if_stats_overview.probe_zmq_drops_flow_collection_udp_socket_drops") ..
                      " <sup><i class='fas fa-question-circle ' title='" ..
                      i18n("if_stats_overview.note_probe_zmq_drops_flow_collection_udp_socket_drops") ..
                      "'></i></sup></th>")
            print("<td nowrap><span " .. span_class .. " id=if_zmq_drops_flow_collection_udp_socket_drops>" ..
                      formatValue(ifstats["zmq.drops.flow_collection_udp_socket_drops"]) ..
                      "</span> <span id=if_zmq_drops_flow_collection_udp_socket_drops_trend></span></td>")
            cur_i = cur_i + 1
        end

if cur_i < max_items_per_row then
            -- 7 is the default colspan, then for each element we subtract two columns
            print(string.format("<td colspan=%u></td>", 7 - cur_i * 2))
        end

print("</tr>")
    end

local is_physical_iface = is_packet_interface and (not is_pcap_dump)

local label = getHumanReadableInterfaceName(ifstats.name)
    local s
    if ((not isEmptyString(label)) and (label ~= ifstats.name)) then
        s = label .. " (" .. ifstats.name .. ")"
    else
        s = ifstats.name
    end

if ((isAdministrator()) and (not is_pcap_dump)) then
        s = s .. " <a href=\"" .. url ..
                "&page=config\"><i class=\"fas fa-cog fa-sm\" title=\"Configure Interface Name\"></i></a>"
    end

print('<tr><th width="250">' .. i18n("name") .. '</th><td colspan="2"><p style="word-break: break-all">')
    print(s)
    if (ifstats.mac and ifstats.mac ~= "00:00:00:00:00:00") then
        print(" [" .. ifstats.mac .. "]");
    end
    print('</p></td>\n')

print("<th>" .. i18n("if_stats_overview.family") .. "</th><td colspan=2>")
    if (ifstats.type == "zmq") then
        print("ZMQ")
    else
        print(ifstats.type)
    end

if (ifstats.inline) then
        print(" " .. i18n("if_stats_overview.in_path_interface"))
    end
    if (ifstats.has_traffic_directions) then
        print(" " .. i18n("if_stats_overview.has_traffic_directions") .. " ")
    end
    print("</tr>")

show_zmq_encryption_public_key = (ifstats.encryption and ifstats.encryption.public_key and isAdministrator())

if show_zmq_encryption_public_key == true then
        print("<tr><th width=280 nowrap>" .. i18n("if_stats_overview.zmq_encryption_public_key") ..
                  "</th><td colspan=6>" .. i18n("if_stats_overview.zmq_encryption_alias") .. "<span>")
        print("<input type='hidden' id='hiddenKey' value='" .. ifstats.encryption.public_key .. "'>")
        print("<button id='copy' class='btn btn-light border ms-1'>" .. "<i class='fas fa-copy'></i>" .. " </button>")
        print("<br><small><b>" .. i18n("if_stats_overview.note") .. "</b>:<ul><li> " ..
                  i18n("if_stats_overview.zmq_encryption_public_key_note", {
                key = "&lt;key&gt;"
            }) .. "")
        local zmq_endpoint = ifstats.name
        local probe_mode = ""

if endswith(zmq_endpoint, 'c') then
            zmq_endpoint = string.sub(zmq_endpoint, 1, -2)
            probe_mode = " --zmq-probe-mode"
        end

print("<li>nprobe --zmq " .. zmq_endpoint .. probe_mode .. " --zmq-encryption-key '" ..
              i18n("if_stats_overview.zmq_encryption_alias") .. "' ...")

print("</small></ul>");

print("</td></tr>\n")
    end

if is_physical_iface and not ifstats.isView then
        print("<tr>")
        print("<th>" .. i18n("mtu") .. "</th><td colspan=2  nowrap>" .. ifstats.mtu .. " " .. i18n("bytes") .. "</td>\n")
        local speed_key = 'ntopng.prefs.ifid_' .. tostring(interface.name2id(ifname)) .. '.speed'
        local speed = ntop.getCache(speed_key)
        if (tonumber(speed) == nil) then
            speed = ifstats.speed
        end
        print("<th width=250>" .. i18n("speed") .. "</th><td colspan=2>" .. bitsToSize(speed * 1000000) .. "</td>")
        print("</tr>")
    end

if (not hasAllowedNetworksSet()) and ((ifstats.num_alerts_engaged > 0) or (ifstats.num_dropped_alerts > 0)) then
        print("<tr>")
        local warning = "<i class='fas fa-exclamation-triangle fa-lg' style='color: #B94A48;'></i> "

print("<th>" .. ternary(ifstats.num_alerts_engaged > 0, warning, "") .. i18n("show_alerts.engaged_alerts") ..
                  ternary(charts_available, " <A HREF='" .. url ..
                "&page=historical&ts_schema=iface:engaged_alerts'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th><td colspan=2  nowrap><a href='" .. ntop.getHttpPrefix() ..
                  "/lua/alert_stats.lua?status=engaged&page=host&ifid=" .. ifstats.id .. "'>" ..
                  formatValue(ifstats.num_alerts_engaged) .. "</a> <span id=engaged_alerts_trend></span></td>\n")
        print("<th width=250>" .. ternary(ifstats.num_dropped_alerts > 0, warning, "") ..
                  i18n("show_alerts.dropped_alerts") .. " <i class='fas fa-sm fa-question-circle ' title='" ..
                  i18n("if_stats_overview.dropped_alerts_info") .. "'></i>" ..
                  ternary(charts_available, " <A HREF='" .. url ..
                "&page=historical&ts_schema=iface:dropped_alerts'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th><td colspan=2><span id=dropped_alerts>" .. formatValue(ifstats.num_dropped_alerts) ..
                  "</span> <span id=dropped_alerts_trend></span></td>\n</td>")
    end

label = i18n("pkts")

print [[</tbody></table>]]
    print [[<table class="table table-striped table-bordered"><tbody>]]

print [[ <tr><th colspan=1 nowrap>]]
    print(i18n("if_stats_overview.traffic_breakdown"))
    print [[</th> ]]

if (ifstats.type ~= "zmq") then
        print [[ <td colspan=2><div class="pie-chart" id="ifaceTrafficBreakdown"></div></td><td colspan=3> <div class="pie-chart" id="ifaceTrafficDistribution"></div></td></tr> ]]
    else
        print [[ <td colspan=5><div class="pie-chart" id="ifaceTrafficBreakdown"></div></td></tr> ]]
    end

print [[
        <script type='text/javascript'>
               window.onload=function() {
                                   do_pie("#ifaceTrafficBreakdown", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/iface_local_stats.lua', { ifid: ]]
    print(ifstats.id .. " }, \"\", refresh); \n")

if (ifstats.type ~= "zmq") then
        print [[                                   do_pie("#ifaceTrafficDistribution", ']]
        print(ntop.getHttpPrefix())
        print [[/lua/iface_local_stats.lua', { ifid: ]]
        print(ifstats.id .. ", iflocalstat_mode: \"distribution\" }, \"\", refresh); \n")
    end
    print [[ }

]]
    print("</script>\n")

if (ifstats.zmqRecvStats ~= nil) then
        print("<tr><th colspan=7 nowrap>" .. i18n("if_stats_overview.zmq_rx_statistics") .. "</th></tr>\n")
        local tot_flows = (ifstats.zmqRecvStats.flows or 0) + (ifstats.zmqRecvStats.dropped_flows or 0)
        if tot_flows == 0 then
            tot_flows = 1
        end
        local pctg_dropped_flows = (((ifstats.zmqRecvStats.dropped_flows or 0) * 100) / tot_flows) or 0
        local tot_zmq_msg_rcvd = (ifstats.zmqRecvStats.zmq_msg_rcvd or 0) + (ifstats.zmqRecvStats.zmq_msg_drops or 0)
        if tot_zmq_msg_rcvd == 0 then
            tot_zmq_msg_rcvd = 1
        end
        local pctg_dropped_zmq_msg =  string.format("%.2f", (((ifstats.zmqRecvStats.zmq_msg_drops or 0) * 100) / tot_flows) or 0)

print("<tr>")
        print("<th nowrap>" .. i18n("if_stats_overview.collected_flows") ..
                  ternary(zmq_charts_available, " <A HREF='" .. url ..
                "&page=historical&ts_schema=iface:zmq_recv_flows'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th><td width=20%><span id=if_zmq_flows>" .. formatValue(ifstats.zmqRecvStats.flows) ..
                  "</span></td>")
        print("<th nowrap> <i class='fas fa-tint' aria-hidden='true'></i> " .. i18n("if_stats_overview.discarded_flows") ..
	      "</th><td width=20%><span id=if_zmq_dropped_flows>" .. formatValue(ifstats.zmqRecvStats.dropped_flows) ..
	      " [ " .. pctg_dropped_flows .. " % ] " .. "</span></td>")
        print("<td colspan=2></td>")
        print("</tr>")

print("<tr>")
        print("<th nowrap>" .. i18n("if_stats_overview.zmq_message_rcvd") ..
                  ternary(zmq_charts_available, " <A HREF='" .. url ..
                "&page=historical&ts_schema=iface:zmq_rcvd_msgs'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th><td width=20%><span id=if_zmq_msg_rcvd>" .. formatValue(ifstats.zmqRecvStats.zmq_msg_rcvd) ..
                  "</span></td>")
        print("<th nowrap> <i class='fas fa-tint' aria-hidden='true'></i> " ..
                  i18n("if_stats_overview.zmq_message_drops") .. ternary(zmq_charts_available, " <A HREF='" .. url ..
            "&page=historical&ts_schema=iface:zmq_msg_drops'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th><td width=20%><span id=if_zmq_msg_drops>" .. formatValue(ifstats.zmqRecvStats.zmq_msg_drops) ..
                  " [ " .. pctg_dropped_zmq_msg .. " % ] " .. "</span></td>")
        print("<td nowrap colspan=2> <b>" .. i18n("if_stats_overview.zmq_avg_msg_flows") ..
                  "</b>: <span id=if_zmq_avg_msg_flows></span></td>")
        print("</tr>")

print("<tr>")
        print("<th nowrap>" .. i18n("if_stats_overview.interface_rx_updates") ..
                  "</th><td width=20%><span id=if_zmq_events>" .. formatValue(ifstats.zmqRecvStats.events) ..
                  "</span></td>")
        print("<th nowrap>" .. i18n("if_stats_overview.sflow_counter_updates") ..
                  "</th><td width=20%><span id=if_zmq_counters>" .. formatValue(ifstats.zmqRecvStats.counters) ..
                  "</span></td>")
        print("<td colspan=2></td>")
        print("</tr>")
    end

if (ifstats.dbStats ~= nil) then
        print("<tr><th colspan=7 nowrap>" .. i18n("if_stats_overview.db_statistics") .. "</th></tr>\n")
        local tot_flows = ifstats.dbStats.flows + ifstats.dbStats.dropped_flows
        local pctg_dropped_flows = ((ifstats.dbStats.dropped_flows * 100) / (tot_flows or 1)) or 0

print("<tr>")
        print("<th nowrap>" .. i18n("if_stats_overview.processed_records") ..
                  "</th><td width=20%><span id=if_zmq_flows>" .. formatValue(ifstats.dbStats.flows) ..
                  "</span></td>")
        print(
            "<th nowrap> <i class='fas fa-tint' aria-hidden='true'></i> " .. i18n("if_stats_overview.discarded_records") ..
                "</th><td width=20%><span id=if_zmq_dropped_flows>" .. formatValue(ifstats.dbStats.dropped_flows) ..
                " [ " .. pctg_dropped_flows .. " % ] " .. "</span></td>")
        print("<td colspan=2></td>")
        print("</tr>")
    end

print("<tr><th colspan=7 nowrap>" .. i18n("if_stats_overview.traffic_statistics") .. "</th></tr>\n")

print("<tr><th nowrap>" .. i18n("report.traffic_anomalies") .. ternary(charts_available, " <A HREF='" .. url ..
        "&page=historical&ts_schema=iface:hosts_anomalies'><i class='fas fa-chart-area fa-sm'></i></A>", "") .. "</th>")
    print("<th nowrap>" .. i18n("report.traffic_anomalies_local_hosts") .. "</th><td><span id=local_hosts_anomalies>" ..
              formatValue(ifstats.anomalies.num_local_hosts_anomalies) ..
              "</span> <span id=local_hosts_anomalies_trend></span></td>")
    print("<th colspan=2 nowrap>" .. i18n("report.traffic_anomalies_remote_hosts") ..
              "</th><td><span id=remote_hosts_anomalies>" .. formatValue(ifstats.anomalies.num_remote_hosts_anomalies) ..
              "</span> <span id=remote_hosts_anomalies_trend></span></td>")
    print("</tr>\n")

print("<tr><th nowrap>" .. i18n("report.total_traffic") .. ternary(charts_available, " <A HREF='" .. url ..
        "&page=historical&ts_schema=iface:traffic'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
              "</th><td width=20%><span id=if_bytes>" .. bytesToSize(ifstats.stats.bytes) ..
              "</span> [<span id=if_pkts>" .. formatValue(ifstats.stats.packets) .. " " .. label .. "</span>] ")

print("<span id=pkts_trend></span></td>")

if not is_sub_interface then
        print("<th width=20%><span id='if_packet_drops_drop'><i class='fas fa-tint' aria-hidden='true'></i></span> ")
        local drops = 0
	local probe_total_packets      = 0
	local probe_total_packet_drops = 0

for _, v in pairs(ifstats.probes or {}) do
	   for _, v1 in pairs(v or {}) do
	      for _, v2 in pairs(v or {}) do
		 if(v2["packets.total"] ~= nil) then probe_total_packets = probe_total_packets + v2["packets.total"] end
		 if(v2["packets.drops"] ~= nil) then probe_total_packet_drops = probe_total_packet_drops + v2["packets.drops"] end
	      end
	   end
	end
	
	if not ifstats.zmqRecvStats then
	   drops = ifstats.stats.drops
	   print(i18n("if_stats_overview.dropped_packets") .. ternary(charts_available, " <A HREF='" .. url ..
								      "&page=historical&ts_schema=iface:packets_vs_drops'><i class='fas fa-chart-area fa-sm'></i></A>", "") .. "</th>")
        else
	   print(i18n("if_stats_overview.dropped_flows") .. "" .. "</th>")
	   
	   for _, v in pairs(ifstats.exporters or {}) do	      
	       drops = drops + v["num_drops"]
            end
        end

print("<td width=20%><span id=if_drops>")

if (ifstats.stats.drops > 0) then
            print('<span class="badge bg-danger">')
        end

print(formatValue(drops) .. " " .. ternary(ifstats.zmqRecvStats, i18n('flows'), label))

if ((ifstats.stats.packets + ifstats.stats.drops) > 0) then
            local pctg = round((ifstats.stats.drops * 100) / (ifstats.stats.packets + ifstats.stats.drops), 2)
            if (pctg > 0) then
                print(" [ " .. pctg .. " % ] ")
            end
        end

if (ifstats.stats.drops > 0) then
            print('</span>')
        end
        print("</span>&nbsp;<span id=drops_trend></span>\n")

-- Packets
	print("</td><th><i class='fas fa-tint'></i> "..i18n("if_stats_overview.dropped_probe_packets").."</th><td> <span id=if_probe_packet_drops>")
	local drop_pctg = 0

if(probe_total_packets > 0) then
	   drop_pctg = (probe_total_packet_drops*100) / probe_total_packets
	end

print(string.format("%.1f", drop_pctg) .. "</span> %&nbsp;<span id=dropped_probe_packets_trend></span>\n")

print("</td>\n")
    else
        print("<td width=20% colspan=3>")
        print("<small><b>" .. i18n("if_stats_overview.note") .. ":</b> " ..
                  i18n("if_stats_overview.note_drop_ifstats_dynamic") .. "</small>")
        print("</td>")
    end

print("</tr>")

if (ifstats.has_traffic_directions) then
        local tx = ifstats.traffic_sent_since_reset
        local rx = ifstats.traffic_rcvd_since_reset
        local tx_pkts = ifstats.packets_sent_since_reset
        local rx_pkts = ifstats.packets_rcvd_since_reset
        local tot = rx + tx

print("<tr><th nowrap>" .. i18n("http_page.traffic_sent") .. ternary(charts_available, " <A HREF='" .. url ..
            "&page=historical&ts_schema=iface:traffic_rxtx'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th><td width=20%><span id=if_out_bytes>" .. bytesToSize(tx) .. "</span> [<span id=if_out_pkts>" ..
                  formatValue(tx_pkts) .. " " .. label .. "</span>] <span id=pkts_out_trend></span></td>")
        print("<th nowrap>" .. i18n("http_page.traffic_received") .. ternary(charts_available, " <A HREF='" .. url ..
            "&page=historical&ts_schema=iface:traffic_rxtx'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th><td width=20%><span id=if_in_bytes>" .. bytesToSize(rx) .. "</span> [<span id=if_in_pkts>" ..
                  formatValue(rx_pkts) .. " " .. label .. "</span>] <span id=pkts_in_trend></span></td>")

print('<td colspan=2><div class="progress"><div class="progress-bar bg-warning" style="width: ' ..
                  (tx * 100 / tot) .. '%;">' .. i18n("sent") .. '</div>')
        print('<div class="progress-bar bg-success" style="width: ' .. (rx * 100 / tot) .. '%;">' .. i18n("received") ..
                  '</div></div></td>')

print("</tr>")
    end

if interface.isSyslogInterface() then
        -- Syslog Stats
        print("<tr>")
        print("<th colspan=7 nowrap>" .. i18n("if_stats_overview.syslog_statistics") .. "</th>")
        print("</tr>")

print("<tr>")
        print("<th nowrap>" .. i18n("if_stats_overview.collected_logs") .. "</th>")
        print("<td><span id=syslog_tot_events>" .. formatValue(ifstats.syslog.tot_events) .. "</span></td>")
        print("<th>" .. i18n("if_stats_overview.dispatched_logs") .. "</th>")
        print("<td><span id=syslog_dispatched>" .. formatValue(ifstats.syslog.dispatched) .. "</span></td>")
        print("<th>" .. i18n("if_stats_overview.unhandled_logs") .. "</th>")
        print("<td><span id=syslog_unhandled>" .. formatValue(ifstats.syslog.unhandled) .. "</span></td>")
        print("</tr>")

print("<tr>")
        print("<th nowrap>" .. i18n("if_stats_overview.malformed_logs") .. "</th>")
        print("<td><span id=syslog_malformed>" .. formatValue(ifstats.syslog.malformed) .. "</span></td>")
        print("<th>" .. i18n("if_stats_overview.host_correlations") .. "</th>")
        print("<td><span id=syslog_host_correlations>" .. formatValue(ifstats.syslog.host_correlations) ..
                  "</span></td>")
        print("<th>" .. i18n("if_stats_overview.alert_events") .. "</th>")
        print("<td><span id=syslog_alerts>" .. formatValue(ifstats.syslog.alerts) .. "</span></td>")
        print("</tr>")

-- Additional stats (e.g. Suricata)
        local external_json_stats = ntop.getCache("ntopng.prefs.ifid_" .. tostring(ifid) .. ".external_stats")
        if not isEmptyString(external_json_stats) then
            local external_stats = json.decode(external_json_stats)
            if external_stats ~= nil then
                local external_stats_title = i18n("external_stats.title")
                if external_stats.i18n_title then
                    external_stats_title = i18n(external_stats.i18n_title)
                    external_stats.i18n_title = nil
                end
                print("<tr><th colspan=7 nowrap>" .. external_stats_title .. "</th></tr>\n")
                for key, value in pairsByKeys(external_stats, asc) do
                    print("<tr>")
                    print(
                        "<th nowrap>" .. ternary(i18n("external_stats." .. key), i18n("external_stats." .. key), key) ..
                            "</th>")
                    print("<td colspan=4>" .. ternary(type(value) == "number", formatValue(value), value) .. "</td>")
                    print("</tr>")
                end
            end
        end
    end

if prefs.is_dump_flows_enabled and not ifstats.isViewed then
        local dump_to = ""

if ntop.isClickHouseEnabled() then
            dump_to = "ClickHouse"
        elseif prefs.is_dump_flows_to_mysql_enabled then
            dump_to = "MySQL"
        elseif prefs.is_dump_flows_to_es_enabled == true then
            dump_to = "ElasticSearch"
        elseif prefs.is_dump_flows_to_syslog_enabled == true then
            dump_to = "Syslog"
        end

local export_count = ifstats.stats.flow_export_count
        local export_rate = ifstats.stats.flow_export_rate
        local export_drops = ifstats.stats.flow_export_drops
        local export_drops_pct = 0

if not export_drops or not export_count then
            -- Nothing to do
        elseif export_drops > 0 and export_count > 0 then
            export_drops_pct = export_drops / (export_count + export_drops) * 100
        elseif export_drops > 0 then
            export_drops_pct = 100
        end

print("<tr><th colspan=7 nowrap>")
        if prefs.is_dump_flows_runtime_enabled then
            print(dump_to .. " " .. i18n("if_stats_overview.flows_export_statistics"))
        else
            print(i18n("if_stats_overview.export_disabled"))
        end
        print("</th></tr>\n")

print("<tr>")
        print("<th nowrap>" .. i18n("if_stats_overview.exported_flows") ..
                  ternary(charts_available, " <A HREF='" .. url ..
                "&page=historical&ts_schema=iface:dumped_flows'><i class='fas fa-chart-area fa-sm'></i></A>", "") ..
                  "</th>")
        print("<td><span id=exported_flows>" .. formatValue(export_count) .. "</span>")
        if export_rate == nil then
            export_rate = 0
        end
        print("&nbsp;[<span id=exported_flows_rate>" .. formatValue(round(export_rate, 2)) .. " fps</span>]</td>")

print("<th><span id='if_flow_drops_drop'<i class='fas fa-tint' aria-hidden='true'></i></span> ")
        print(i18n("if_stats_overview.dropped_flows") .. ternary(charts_available, " <A HREF='" .. url ..
            "&page=historical&ts_schema=iface:dumped_flows'><i class='fas fa-chart-area fa-sm'></i></A>", "") .. "</th>")

local span_danger = ""
        if not export_drops then
        elseif export_drops > 0 then
            span_danger = ' class="badge bg-danger"'
        end

print("<td><span id=exported_flows_drops " .. span_danger .. ">" .. formatValue(export_drops) .. "</span>&nbsp;")
        print("<span id=exported_flows_drops_pct " .. span_danger .. ">[" .. formatValue(round(export_drops_pct, 2)) ..
                  "%]</span></td>")

if not is_packet_interface then
            print("<th nowrap>" .. i18n("if_stats_overview.direct_mode") .. "</th>")
            print("<td>" .. ternary(prefs.is_dump_flows_direct_enabled, i18n("enabled"), i18n("disabled")) .. "</td>")
        else
            print("<td colspan=2></td>")
        end

print("</tr>")
    end

local an = ifstats.anomalies.tot_num_anomalies or {}
    local tot_an = 0

if table.len(an) > 0 then
        tot_an = an.local_hosts + an.remote_hosts
    end

if (tot_an > 0) then
        -- TODO: Add JSON update
        print("<tr><th>" .. i18n("if_stats_overview.counter_anomalies") .. "</th>")
        print("<td><b>" .. i18n("total") .. "</b>: <span id=total_anomalies>" .. formatValue(tot_an) ..
                  "</span><span id=total_anomalies_trend></span></td>")
        print("<td><b>" .. i18n("local_hosts") .. "</b>: <span id=local_anomalies>" .. formatValue(an.local_hosts) ..
                  "</span><span id=local_anomalies_trend></span></td>")
        print("<td><b>" .. i18n("remote_hosts") .. "</b>: <span id=remote_anomalies>" .. formatValue(an.remote_hosts) ..
                  "</span><span id=remote_anomalies_trend></span></td>")
        print("<td>&nbsp;</td></tr>\n") -- Cell for future usage
    end

if isAdministrator() and ifstats.isView == false then

-- Traffic recording

if has_traffic_recording_page then
            print("<tr><th colspan=7 nowrap>" .. i18n("traffic_recording.traffic_recording") .. "</th></tr>\n")

-- Traffic Recording stats

local stats = recording_utils.stats(ifstats.id)

local first_epoch = stats['FirstDumpedEpoch']
            local last_epoch = stats['LastDumpedEpoch']
            local start_time = stats['StartEpoch']

if first_epoch ~= nil then
                print("<tr><th>" .. i18n("traffic_recording.dump_window") .. "</th><td colspan=5>")
                if first_epoch ~= nil and last_epoch ~= nil and first_epoch > 0 and last_epoch > 0 then
                    print(formatEpoch(first_epoch) .. " - " .. formatEpoch(last_epoch))
                else
                    print(i18n("traffic_recording.no_file"))
                end
                print("</td></tr>\n")
            end

if start_time ~= nil then
                print("<tr><th>" .. i18n("traffic_recording.active_since") .. "</th><td colspan=5>" ..
                          formatEpoch(start_time))
                if (start_time ~= nil) and (first_epoch ~= nil) and (first_epoch > 0) and (start_time > first_epoch) then
                    print(' - <i class="fas fa-exclamation-triangle"></i> ')
                    print(i18n("traffic_recording.missing_data_msg"))
                end
                print("</td></tr>\n")
            end

-- Smart Recording stats

stats = recording_utils.smartStats(ifstats.id)

first_epoch = stats['FirstDumpedEpoch']
            last_epoch = stats['LastDumpedEpoch']

if first_epoch ~= nil then
                print("<tr><th>" .. i18n("traffic_recording.smart_window") .. "</th><td colspan=5>")
                if first_epoch ~= nil and last_epoch ~= nil and first_epoch > 0 and last_epoch > 0 then
                    print(formatEpoch(first_epoch) .. " - " .. formatEpoch(last_epoch))
                else
                    print(i18n("traffic_recording.no_file"))
                end
                print("</td></tr>\n")
            end

end

-- Storage utilization

local ts_utils = require "ts_utils_core"
        local storage_info = storage_utils.interfaceStorageInfo(ifid)
        local storage_items = {}

if storage_info then
            if ts_utils.getDriverName() == "rrd" then
                if storage_info.rrd ~= nil and storage_info.rrd > 0 then
                    table.insert(storage_items, {
                        title = i18n("if_stats_overview.rrd_timeseries"),
                        value = storage_info.rrd,
                        class = "primary"
                    })
                end
            end

if storage_info.flows ~= nil and storage_info.flows > 0 then
                table.insert(storage_items, {
                    title = i18n("flows"),
                    value = storage_info.flows,
                    class = "info"
                })
            end

if storage_info.pcap ~= nil and storage_info.pcap > 0 then
                local link = nil

if recording_utils.isAvailable(ifstats.id) then
                    link = ntop.getHttpPrefix() .. "/lua/if_stats.lua?ifid=" .. ifid .. "&page=traffic_recording"
                end

table.insert(storage_items, {
                    title = i18n("traffic_recording.packet_dumps"),
                    value = storage_info.pcap,
                    class = "warning",
                    link = link
                })
            end

if #storage_items > 0 then
                print("<tr><th>" .. i18n("traffic_recording.storage_utilization") .. "</th><td colspan=5>")
                print(graph_utils.stackedProgressBars(storage_info.total, storage_items, nil, bytesToSize))
                print("</td></tr>\n")
            end

end
    end

if ntop.isPcapDownloadAllowed() and ifstats.isView == false and not is_sub_interface and is_packet_interface then
        print("<tr><th>" .. i18n("live_capture.live_capture") ..
                  "&nbsp;<i class=\"fas fa-download fa-lg\"></i></th><td colspan=5>")

local live_traffic_utils = require("live_traffic_utils")
        live_traffic_utils.printLiveTrafficForm(interface.getId())

print("</td></tr>\n")
    end

if isAdministrator() then
        print("<tr><th width=250>" .. i18n("if_stats_overview.reset_counters") .. "</th>")
        print("<td colspan=5>")

local tot = ifstats.stats.bytes + ifstats.stats.packets + ifstats.stats.drops
        if (ifstats.stats.flow_export_count ~= nil) then
            tot = tot + ifstats.stats.flow_export_count + ifstats.stats.flow_export_drops
        end

print(
            '<button id="btn_reset_all" type="button" class="btn btn-danger" onclick="resetInterfaceCounters(false);">' ..
                i18n("if_stats_overview.all_counters") .. '</button>&nbsp;')

print(
            '<button id="btn_reset_drops" type="button" class="btn btn-danger" onclick="resetInterfaceCounters(true);">' ..
                i18n("if_stats_overview.drops_only") .. '</button>')
        print("</td>")

print("</tr>\n")
    end

if have_nedge and ifstats.type == "netfilter" and ifstats.netfilter then
        local st = ifstats.netfilter

print("<tr><th nowrap>" .. i18n("if_stats_overview.nf_queue_total") .. "</th>")
        local span_class = ''
        if st.nfq.queue_pct > 80 then
            span_class = "class='badge bg-danger'"
        end
        print("<td width=20%><span id=nfq_queue_total " .. span_class .. ">" ..
                  string.format("%s [%s %%]", formatValue(st.nfq.queue_total), formatValue(st.nfq.queue_pct)) ..
                  " </span> <span id=nfq_queue_total_trend></span></td>")
        print("<th nowrap>" .. i18n("if_stats_overview.nf_handle_packet_failed") .. "</th>")
        print("<td width=20%><span id=nfq_handling_failed>" .. formatValue(st.failures.handle_packet) ..
                  "</span> <span id=nfq_handling_failed_trend></span></td>")
        print("<th nowrap>" .. i18n("if_stats_overview.nf_enobufs") .. "</th>")
        print("<td width=20%><span id=nfq_enobufs>" .. formatValue(st.failures.no_buffers) ..
                  "</span> <span id=nfq_enobufs_trend></span></td>")
        print("</tr>")

print("<tr><th nowrap>")
        print(i18n("if_stats_overview.conntrack_flow_entries"))
        print("</th><td colspan=5>")
        print("<span id=num_conntrack_entries>" .. formatValue(st.nfq.num_conntrack_entries) .. "</span></td>")
        print("</tr>")
    end

print [[
   <tr><td colspan=7> <small> <b>]]
    print(i18n("if_stats_overview.note") .. "</b>:<p>" .. i18n("if_stats_overview.note_packets"))
    print [[</small> </td></tr>
   ]]

print("</table>\n")
    print("</div>") -- close of table responsive
elseif page == "networks" and is_packet_interface then

print("<table class=\"table table-striped table-bordered\">")

if (ifstats.ip_addresses ~= "") then
        local tokens = split(ifstats.ip_addresses, ",")

if (tokens ~= nil) then
            print("<tr><th width=250>" .. i18n("ip_address") .. "</th><td colspan=5><ul><li>")
            local addresses = {}

for _, s in pairs(tokens) do
                t = string.split(s, "/")
                host = interface.getHostInfo(t[1])

if (host ~= nil) then
                    addresses[#addresses + 1] = hostinfo2detailshref(host, nil, t[1]) .. "/" .. t[2]
                else
                    addresses[#addresses + 1] = s
                end
            end

print(table.concat(addresses, "\n<li>"))

print("</ul></td></tr>")
        end
    else
        print("<tr><th width=250>" .. i18n("ip_address") .. "</th><td colspan=5>")
        print(i18n("if_stats_networks.no_ip_addresses_read"))
        print("</td></tr>")
    end

local has_ghost_networks = false
    local ghost_icon = '<font color=red><i class="fas fa-ghost" aria-hidden="true"></i></font>'
    if ifstats.bcast_domains and table.len(ifstats.bcast_domains) > 0 then
        print("<tr><th width=250>" .. i18n("broadcast_domain") .. "</th><td colspan=5>")

local bcast_domains = {}
        for bcast_domain, domain_info in pairsByKeys(ifstats.bcast_domains) do
            bcast_domain = string.format("<a href='%s/lua/hosts_stats.lua?network_cidr=%s'>%s</a>",
                ntop.getHttpPrefix(), bcast_domain, bcast_domain)

if domain_info.ghost_network then
                has_ghost_networks = true
                bcast_domain = bcast_domain .. ' ' .. ghost_icon
            end

bcast_domains[#bcast_domains + 1] = bcast_domain
        end

if #bcast_domains > 0 then
            print("<ul>")
            for _, bcast_domain in ipairs(bcast_domains) do
                print("<li>" .. bcast_domain .. "</li>")
            end
            print("</ul>")
        end

print("</td></tr>")
    else
        print("<tr><th width=250>" .. i18n("broadcast_domain") .. "</th><td colspan=5>")
        print(i18n('if_stats_networks.no_broadcast_domains'))
        print("</td></tr>")
    end
    print("</table>")

print(ui_utils.render_notes({{
        content = i18n("if_stats_networks.note_iface_addresses")
    }, {
        content = i18n("if_stats_networks.note_iface_bcast_domains")
    }, {
        content = i18n("if_stats_networks.note_ghost_bcast_domains", {
            ghost_icon = ghost_icon
        }),
        hidden = not has_ghost_networks
    }}))

elseif ((page == "packets")) then
    local nedge_hidden = ternary(have_nedge, 'class="hidden"', '')

print [[ <table class="table table-bordered table-striped"> ]]
    print("<tr " .. nedge_hidden .. "><th width=30% rowspan=3>" .. i18n("packets_page.tcp_packets_analysis") ..
              "</th><th>" .. i18n("packets_page.retransmissions") ..
              "</th><td align=right><span id=pkt_retransmissions>" ..
              formatPackets(ifstats.tcpPacketStats.retransmissions) ..
              percentage(ifstats.tcpPacketStats.retransmissions, ifstats.stats.packets) ..
              "</span> <span id=pkt_retransmissions_trend></span></td></tr>\n")

print("<tr " .. nedge_hidden .. "></th><th>" .. i18n("packets_page.out_of_order") ..
              "</th><td align=right><span id=pkt_ooo>" .. formatPackets(ifstats.tcpPacketStats.out_of_order) ..
              percentage(ifstats.tcpPacketStats.out_of_order, ifstats.stats.packets) ..
              "</span> <span id=pkt_ooo_trend></span></td></tr>\n")
    print("<tr " .. nedge_hidden .. "></th><th>" .. i18n("packets_page.lost") ..
              "</th><td align=right><span id=pkt_lost>" .. formatPackets(ifstats.tcpPacketStats.lost) ..
              percentage(ifstats.tcpPacketStats.lost, ifstats.stats.packets) ..
              "</span> <span id=pkt_lost_trend></span></td></tr>\n")

if (ifstats.type ~= "zmq") then
        print [[<tr ]]
        print(nedge_hidden)
        print [[><th class="text-start">]]
        print(i18n("packets_page.size_distribution"))
        print [[</th><td colspan=5><div class="pie-chart" id="sizeDistro"></div></td></tr>]]
    end

print [[
           <tr ]]
    print(nedge_hidden)
    print [[><th class="text-start">]]
    print(i18n("packets_page.version_vs_flags_distribution"))
    print [[</th>
<td colspan=1><div class="pie-chart" id="ipverDistro"></div></td><td colspan=1><div class="pie-chart" id="flagsDistro"></div></td></tr>
      </table>

do_pie("#sizeDistro", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/if_pkt_distro.lua', { distr: "size", ifid: "]]
    print(ifstats.id .. "\"")
    print [[
           }, "", refresh);

do_pie("#flagsDistro", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/if_tcpflags_pkt_distro.lua', { ifid: "]]
    print(ifstats.id .. "\"")
    print [[
           }, "", refresh);

do_pie("#ipverDistro", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/if_pkt_distro.lua', { distr: "ipver", ifid: "]]
    print(ifstats.id .. "\"")
    print [[
           }, "", refresh);
    }

</script><p>
  ]]
elseif (page == "DSCP") then

print [[
     <table id="dscp_table" class="table table-bordered table-striped tablesorter">
        <tr>
          <th class="text-start">]]
    print(i18n("dscp_page.statistics"))
    print [[</th>
          <td colspan=4><div class="pie-chart" id="dscpGroups"></td>
        </tr>
     </table>
<script>
 do_pie("#dscpGroups", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/rest/v2/get/interface/dscp/stats.lua', { ifid: "]]
    print(ifid)
    print [[" }, "", refresh);
</script>

]]

elseif (page == "ndpi") then
    print [[
   <div class='card'>
   <div class='card-header'>
  <ul id="ndpiNav" class="nav nav-tabs card-header-tabs" role="tablist">
    <li class="nav-item active"><a class="nav-link active" data-bs-toggle="tab" role="tab" href="#applications" active>]]
    print(i18n("applications"))
    print [[</a></li>
    <li class="nav-item"><a class="nav-link" data-bs-toggle="tab" role="tab" href="#categories">]]
    print(i18n("categories"))
    print [[</a></li>
  </ul>
  </div>
  <div class='card-body tab-content'>
    <div id="applications" class="tab-pane in active">

<table class="table table-bordered table-striped">
]]

if ntop.isPro() and ifstats["custom_apps"] then
        print [[
        <tr>
          <th class="text-start">]]
        print(i18n("ndpi_page.overview", {
            what = i18n("ndpi_page.custom_applications")
        }))
        print [[</th>
          <td colspan=5><div class="pie-chart" id="topCustomApps"></td>
        </tr>
]]
    end

print [[
        <tr>
          <th class="text-start">]]
    print(i18n("ndpi_page.overview", {
        what = i18n("applications")
    }))
    print [[</th>
          <td colspan=3><div class="pie-chart" id="topApplicationProtocols"></td>
          <td colspan=2><div class="pie-chart" id="topApplicationBreeds"></td>
        </tr>
        <tr>
          <th class="text-start">]]
    print(i18n("ndpi_page.live_flows_count"))
    print [[</th>
          <td colspan=3><div class="pie-chart" id="topFlowsCount"></td>
          <td colspan=2><div class="pie-chart" id="topTCPFlowsStats">
          <br><small><b>]]
    print(i18n("ndpi_page.note"))
    print [[ :</b>]]
    print(i18n("ndpi_page.note_live_flows_chart"))
    print [[
          </td>
        </tr>
      </table>
     <table id="if_stats_ndpi" class="table table-bordered table-striped tablesorter">
       <thead>
         <tr>
           <th>]]
    print(i18n("application"))
    print [[</th>
           <th class='text-end'>]]
    print(i18n("ndpi_page.total_since_startup"))
    print [[</th>
           <th>]]
    print(i18n("percentage"))
    print [[</th>
         </tr>
       </thead>
       <tbody id="if_stats_ndpi_tbody"></tbody>
     </table>
    </div>
    <div id="categories" class="tab-pane">
      <table class="table table-bordered table-striped">
        <tr>
          <th class="text-start">]]
    print(i18n("ndpi_page.overview", {
        what = i18n("categories")
    }))
    print [[</th>
          <td colspan=5><div class="pie-chart" id="topApplicationCategories"></td>
        </tr>
      </table>
     <table id="if_stats_ndpi_categories" class="table table-bordered table-striped tablesorter">
       <thead>
         <tr>
           <th>]]
    print(i18n("category"))
    print [[</th>
           <th>]]
    print(i18n("applications"))
    print [[</th>
           <th class='text-end'>]]
    print(i18n("ndpi_page.total_since_startup"))
    print [[</th>
           <th>]]
    print(i18n("percentage"))
    print [[</th>
         </tr>
       </thead>
       <tbody id="if_stats_ndpi_categories_tbody"></tbody>
     </table>
    </div>
    </div>
    </div>

]]

print [[
        <script type='text/javascript'>
         window.onload=function() {]]

if ntop.isPro() and ifstats["custom_apps"] then
        print [[do_pie("#topCustomApps", ']]
        print(ntop.getHttpPrefix())
        print [[/lua/pro/get_custom_app_stats.lua', { ifid: "]]
        print(ifid)
        print [[" }, "", refresh);
]]
    end

print [[do_pie("#topApplicationProtocols", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/rest/v2/get/interface/l7/stats.lua', { ndpistats_mode: "sinceStartup", ifid: "]]
    print(ifid)
    print [[" }, "", refresh);

do_pie("#topApplicationBreeds", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/rest/v2/get/interface/l7/stats.lua', { breed: "true", ndpistats_mode: "sinceStartup", ifid: "]]
    print(ifid)
    print [[" }, "", refresh);

do_pie("#topApplicationCategories", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/rest/v2/get/interface/l7/stats.lua', { ndpi_category: "true", ndpistats_mode: "sinceStartup", ifid: "]]
    print(ifid)
    print [[" }, "", refresh);

do_pie("#topFlowsCount", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/rest/v2/get/interface/l7/stats.lua', { breed: "true", ndpistats_mode: "count", ifid: "]]
    print(ifid)
    print [[" }, "", refresh);

do_pie("#topTCPFlowsStats", ']]
    print(ntop.getHttpPrefix())
    print [[/lua/iface_tcp_stats.lua', { ifid: "]]
    print(ifid)
    print [[" }, "", refresh);
    }

</script>
]]

elseif (page == "ICMP") then
    print [[
  <div class='card'>
   <div class='card-header'>
  <ul id="icmp_nav" class="nav nav-tabs card-header-tabs" role="tablist">
    <li class="nav-item active"><a class="nav-link active" data-bs-toggle="tab" role="tab" href="#icmp" active>]]
    print(i18n("icmpv4"))
    print [[</a></li>
    <li class="nav-item"><a class="nav-link" data-bs-toggle="tab" role="tab" href="#icmpv6">]]
    print(i18n("icmpv6"))
    print [[</a></li>
  </ul>
  </div>
  <div class="card-body tab-content">
    <div id="icmp" class="tab-pane in active">
       <table id="icmp_table_4" class="table table-bordered table-striped tablesorter">
         <thead><tr><th>]]
    print(i18n("icmp_page.icmp_message"))
    print [[</th><th>]]
    print(i18n("icmp_page.icmp_type"))
    print [[</th><th>]]
    print(i18n("icmp_page.icmp_code"))
    print [[</th><th style='text-align:right;'>]]
    print(i18n("packets"))
    print [[</th></tr></thead>
         <tbody id="iface_details_icmp_tbody_4">
         </tbody>
       </table>
    </div>
    <div id="icmpv6" class="tab-pane">
       <table id="icmp_table_6" class="table table-bordered table-striped tablesorter">
         <thead><tr><th>]]
    print(i18n("icmp_page.icmp_message"))
    print [[</th><th>]]
    print(i18n("icmp_page.icmp_type"))
    print [[</th><th>]]
    print(i18n("icmp_page.icmp_code"))
    print [[</th><th style='text-align:right;'>]]
    print(i18n("packets"))
    print [[</th></tr></thead>
         <tbody id="iface_details_icmp_tbody_6">
         </tbody>
       </table>
    </div>
    </div>
    </div>

$.ajax({
    type: 'GET',
    url: ']]
    print(ntop.getHttpPrefix())
    print [[/lua/get_icmp_data.lua',
    data: { ifid: "]]
    print(interface.getId() .. "")
    print [[", version: ip_version },
    success: function(content) {
      if(content) {
         $(icmp_table_body_id).html(content);
         $(icmp_table_id).trigger("update");
      }
    }
  });
}

function update_icmp_tables() {
  update_icmp_table(4);
  update_icmp_table(6);
}

update_icmp_tables();
setInterval(update_icmp_tables, 5000);
</script>

]]
elseif (page == "ARP") then
    local endpoint = string.format(ntop.getHttpPrefix() .. "/lua/rest/v2/get/interface/arp.lua?ifid=%s", ifId)
    local context = {
        json = json,
        template = template,
        sites = {
            endpoint = endpoint
        }
    }

print(template.gen("pages/arp.template", context))

elseif (page == "sites") then
    if not prefs.are_top_talkers_enabled then
        local msg = i18n("sites_page.top_sites_not_enabled_message", {
            url = ntop.getHttpPrefix() .. "/lua/admin/prefs.lua?tab=protocols"
        })
        print("<div class='alert alert-info'><i class='fas fa-info-circle fa-lg' aria-hidden='true'></i> " .. msg ..
                  "</div>")

elseif table.len(sites_granularities) > 0 then
        local endpoint = string.format(ntop.getHttpPrefix() .. "/lua/pro/rest/v2/get/interface/top/sites.lua?ifid=%s",
            ifid)
        local context = {
            json = json,
            template = template,
            sites = {
                endpoint = endpoint,
                ifid = ifid,
                granularities = sites_granularities,
                default_granularity = "current"
            }
        }

print(template.gen("pages/top_sites.template", context))

else
        local msg = i18n("sites_page.top_sites_not_seen")
        print("<div class='alert alert-info'><i class='fas fa-info-circle fa-lg' aria-hidden='true'></i> " .. msg ..
                  "</div>")
    end

elseif (page == "historical") then
    local source_value_object = {
        ifid = interface.getId()
    }
    graph_utils.drawNewGraphs(source_value_object)
elseif (page == "trafficprofiles") then

print("<table class=\"table table-striped table-bordered\">\n")
    print("<tr><th width=15%><a href=\"" .. ntop.getHttpPrefix() .. "/lua/pro/admin/edit_profiles.lua\">" ..
              i18n("traffic_profiles.profile_name") .. "</A></th><th width=5%>" .. i18n("chart") .. "</th><th>" ..
              i18n("traffic") .. "</th></tr>\n")
    for pname, pbytes in pairsByKeys(ifstats.profiles, asc) do
        local trimmed = trimSpace(pname)
        local statschart_icon = ''

if areInterfaceTimeseriesEnabled(ifid) then
            statschart_icon = '<A HREF=\"' .. ntop.getHttpPrefix() .. '/lua/profile_details.lua?profile=' .. pname ..
                                  '\"><i class=\'fas fa-chart-area fa-lg\'></i></A>'
        end

print("<tr><th>" .. pname .. "</th><td align=center>" .. statschart_icon .. "</td><td><span id=profile_" ..
                  trimmed .. ">" .. bytesToSize(pbytes) .. "</span> <span id=profile_" .. trimmed ..
                  "_trend></span></td></tr>\n")
    end

print [[
   </table>
   <script>
   let last_profile = [];
   const traffic_profiles_interval = window.setInterval(function() {
          $.ajax({
                    type: 'GET',
                    url: ']]
    print(ntop.getHttpPrefix())
    print [[/lua/rest/v2/get/interface/data.lua',
                    data: { iffilter: "]]
    print(tostring(interface.name2id(if_name)))
    print [[" },
                    success: function(content) {
                        if(content["rc_str"] == "OK" && content["rsp"] && content["rsp"]["profiles"] != null) {
                           const profiles = content["rsp"];

for (key in profiles["profiles"]) {
                             let k = '#profile_'+key.replace(" ", "");
                             const v = profiles["profiles"][key];
                             $(k).html(NtopUtils.bytesToVolume(v));
                             k += "_trend";
                             let last = last_profile[key];
                             if(last == null) { last = 0; }
                             $(k).html(NtopUtils.get_trend(last, v));
                           }

last_profile = profiles["profiles"];
                          }
                        }
          });
}, ]]
    print(math.min(interface.getStatsUpdateFreq(ifstats.id), 10) .. "")
    print [[ * 1000);

</script>
]]
elseif (page == "traffic_recording" and has_traffic_recording_page) then
    local master_ifid = interface.getMasterInterfaceId()

if not dismiss_recording_providers_reminder then
        print('<div id="traffic-recording-providers-detected" class="alert alert-info alert-dismissable">' ..
                  i18n('traffic_recording.msg_external_providers_detected', {
                url = ntop.getHttpPrefix() .. "/lua/if_stats.lua?page=config"
            }) .. '<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button></div>')

print [[
  <script>
    $('#traffic-recording-providers-detected').on('close.bs.alert', function () {
         var dismiss_notice = $.ajax({
          type: 'POST',
          url: ']]
        print(ntop.getHttpPrefix())
        print [[/lua/traffic_recording_config.lua',
          data: { ifid: ]]
        print(tostring(master_ifid))
        print [[,
                  dismiss_external_providers_reminder: true,
                  csrf: "]]
        print(ntop.getRandomCSRFValue())
        print [["},
          success: function()  {},
          complete: function() {},
        });

});
  </script>
]]
    end

local tab = _GET["tab"] or "config"
    local recording_enabled = recording_utils.isEnabled(master_ifid)
    -- config tab is only shown when the recording service is managed by ntopng
    -- otherwise it is assumed that the user is managing the service manually with n2disk
    local config_enabled = (recording_utils.getCurrentTrafficRecordingProvider(master_ifid) == "ntopng")

if tab == "config" and not config_enabled then
        if recording_enabled then
            tab = "status"
        else
            tab = ""
        end
    end
    if (tab == "status" or tab == "jobs") and not recording_enabled then
        if config_enabled then
            tab = "config"
        else
            tab = ""
        end
    end

if (_SERVER["REQUEST_METHOD"] == "POST") and (tab == "config") then
        recording_enabled = not isEmptyString(_POST["record_traffic"])
    end

print('<ul id="traffic-recording-nav" class="nav nav-tabs" role="tablist">')

if config_enabled then
        print('<li class="nav-item ' .. ternary(tab == "config", "active", "") .. '"><a class="nav-link ' ..
                  ternary(tab == "config", "active", "") .. '" href="?ifid=' .. ifstats.id ..
                  '&page=traffic_recording"><i class="fas fa-cog"></i> ' .. i18n("traffic_recording.settings") ..
                  '</a></li>')
    end

if recording_enabled then
        print('<li class="nav-item ' .. ternary(tab == "status", "active", "") .. '"><a class="nav-link ' ..
                  ternary(tab == "status", "active", "") .. '" href="?ifid=' .. ifstats.id ..
                  '&page=traffic_recording&tab=status">' .. i18n("status") .. '</a></li>')

if ntop.isEnterpriseM() then
            print('<li class="nav-item ' .. ternary(tab == "jobs", "active", "") .. '"><a class="nav-link ' ..
                      ternary(tab == "jobs", "active", "") .. '" href="?ifid=' .. ifstats.id ..
                      '&page=traffic_recording&tab=jobs">' .. i18n("traffic_recording.jobs") .. '</a></li>')
        end
    end

print('</ul>')
    print('<div class="tab-content">')

if recording_enabled and tab == "status" then
        dofile(dirs.installdir .. "/scripts/lua/inc/traffic_recording_status.lua")
    elseif recording_enabled and ntop.isEnterpriseM() and tab == "jobs" then
        dofile(dirs.installdir .. "/scripts/lua/inc/traffic_recording_jobs.lua")
    elseif config_enabled and tab == "config" then -- config, default
        dofile(dirs.installdir .. "/scripts/lua/inc/traffic_recording_config.lua")
    end

print('</div></div>')
elseif (page == "config") then
    if (not isAdministrator()) then
        return
    end

local messages = {}

-- Flow dump check
    local interface_flow_dump = true
    if prefs.is_dump_flows_enabled then
        interface_flow_dump = (ntop.getPref("ntopng.prefs.ifid_" .. interface.getId() .. ".is_flow_dump_disabled") ~=
                                  "1")

if _SERVER["REQUEST_METHOD"] == "POST" then
            local new_value = (_POST["interface_flow_dump"] == "1")

if new_value ~= interface_flow_dump then
                -- Value changed
                interface_flow_dump = new_value
                ntop.setPref("ntopng.prefs.ifid_" .. interface.getId() .. ".is_flow_dump_disabled",
                    ternary(interface_flow_dump, "0", "1"))

messages[#messages + 1] = {
                    type = "warning",
                    text = i18n("prefs.restart_needed", {
                        product = info.product
                    })
                }
            end
        end
    end

if not table.empty(messages) then
        printMessageBanners(messages)
        print("<br>")
    end

print [[
   <form id="iface_config" lass="form-inline" method="post">
   <input name="csrf" type="hidden" value="]]
    print(ntop.getRandomCSRFValue())
    print [[" />
   <table id="iface_config_table" class="table table-bordered table-striped">]]

if ((not is_pcap_dump) and (ifstats.name ~= nil) and (ifstats.name ~= "dummy")) then
        -- Custom name
        print [[
      <tr>
         <th>]]
        print(i18n("if_stats_config.custom_name"))
        print [[</th>
         <td>]]
        local label = getHumanReadableInterfaceName(ifstats.name)
        inline_input_form("custom_name", "Custom Name", i18n("if_stats_config.custom_name_popup_msg"), label,
            isAdministrator(), 'autocorrect="off" spellcheck="false"')
        print [[
         </td>
      </tr>]]

-- Interface speed
        if not have_nedge then
            print [[
        <tr>
           <th>]]
            print(i18n("if_stats_config.interface_speed"))
            print [[</th>
           <td>]]
            local ifspeed = getInterfaceSpeed(ifstats.id)
            inline_input_form("ifSpeed", "Interface Speed", i18n("if_stats_config.interface_speed_popup_msg"), ifspeed,
                isAdministrator(), 'type="number" min="1"', "d-inline-block",
                "if_stats_config.interface_speed_measure_unit")
            print [[
           </td>
        </tr>]]
        end
    end

if not have_nedge then
        -- Scaling factor
        if is_packet_interface and not have_nedge then
            local label = ntop.getCache("ntopng.prefs.iface_" .. tostring(ifid) .. ".scaling_factor")
            if ((label == nil) or (label == "")) then
                label = "1"
            end

print [[
        <tr>
           <th>]]
            print(i18n("if_stats_config.scaling_factor"))
            print [[</th>
           <td>]]
            inline_input_form("scaling_factor", "Scaling Factor", i18n("if_stats_config.scaling_factor_popup_msg"),
                label, isAdministrator(), 'type="number" min="1" step="1"')
            print [[
           </td>
        </tr>]]
        end
    end

local serialize_by_mac
    local serialize_by_mac_key = string.format("ntopng.prefs.ifid_%u.serialize_local_broadcast_hosts_as_macs",
        interface.getId())

if (_POST["lbd_hosts_as_macs"] ~= nil) then
        serialize_by_mac = _POST["lbd_hosts_as_macs"]

if ntop.getPref(serialize_by_mac_key) ~= serialize_by_mac then
            ntop.setPref(serialize_by_mac_key, serialize_by_mac)
            interface.updateLbdIdentifier()
        end
    else
        serialize_by_mac = ntop.getPref(serialize_by_mac_key)
    end

-- LBD identifier
    print [[
        <tr>
           <th width="30%">]]
    print(i18n("prefs.toggle_host_tskey_title"))
    print [[ <i class="fas fa-question-circle " title="]]
    print(i18n("prefs.toggle_host_tskey_description"))
    print [["></i></th>
           <td>]]
    inline_select_form("lbd_hosts_as_macs", {i18n("ip_address"), i18n("mac_address")}, {"0", "1"}, serialize_by_mac)
    print [[
           </td>
        </tr>]]

-- Automatic Reports
    if isAdministrator() and ntop.isEnterpriseL() then
        package.path = dirs.installdir .. "/pro/scripts/lua/enterprise/modules/?.lua;" .. package.path
        local reports_utils = require "reports_utils"

if toboolean(ntop.getPref("ntopng.prefs.automatic_reports_enabled")) then
            local automatic_reports_creation

if _SERVER["REQUEST_METHOD"] == "POST" then
                automatic_reports_creation = toboolean(_POST["automatic_reports_creation"])
                reports_utils.toggle_automatic_reports(ifid, automatic_reports_creation)
            else
                automatic_reports_creation = reports_utils.automatic_reports_enabled(ifid)
            end

print [[<tr>
            <th>]]
            print(i18n("if_stats_config.automatic_reports_creation"))
            print [[</th>
            <td>]]

print(template.gen("on_off_switch.html", {
                id = "automatic_reports_creation",
                checked = automatic_reports_creation
            }))

print [[
               </td>
         </tr>]]
        end
    end

-- per-interface Top-Talkers generation
    local interface_top_talkers_creation = true

if _SERVER["REQUEST_METHOD"] == "POST" then
        if _POST["interface_top_talkers_creation"] ~= "1" then
            interface_top_talkers_creation = false
            top_talkers_utils.disableTop(interface.getId())
        else
            top_talkers_utils.enableTop(interface.getId())
        end
    else
        if not top_talkers_utils.areTopEnabled(interface.getId()) then
            interface_top_talkers_creation = false
        end
    end

print [[<tr>
         <th>]]
    print(i18n("if_stats_config.interface_top_talkers_creation"))
    print [[</th>
         <td>]]

print(template.gen("on_off_switch.html", {
        id = "interface_top_talkers_creation",
        checked = interface_top_talkers_creation
    }))

print [[
            </td>
      </tr>]]

-- Flow dump
    if prefs.is_dump_flows_enabled then
        print [[<tr>
         <th>]]
        print(i18n("if_stats_config.dump_flows_to_database"))
        print [[</th>
         <td>]]

print(template.gen("on_off_switch.html", {
            id = "interface_flow_dump",
            checked = interface_flow_dump
        }))

print [[
         </td>
      </tr>]]
    end

-- Mirrored Traffic
    if not ntop.isnEdge() and is_packet_interface then
        print [[<tr>
         <th>]]
        print(i18n("if_stats_config.is_mirrored_traffic"))
        print [[</th>
    <td>]]

print(template.gen("on_off_switch.html", {
            id = "is_mirrored_traffic",
            checked = is_mirrored_traffic
        }))

print [[

function toggle_mirrored_traffic_function_on(){
  $(`#is_mirrored_traffic`).val("1");
  $("#gw_macs_tr").css("display","table-row");
}

function toggle_mirrored_traffic_function_off(){
  $(`#is_mirrored_traffic`).val("0");
  $("#gw_macs_tr").css("display","none");
}
</script>

</td>
      </tr>]]

-- Gw Macs for Address-Based Traffic Directions
        local rv = ntop.getMembersCache(getGwMacsSet(ifstats.id)) or {}
        local members = {}

-- impose sort order
        for _, addr in pairsByValues(rv, asc) do
            members[#members + 1] = addr
        end

local gw_macs = table.concat(members, ",")

print([[
        <tr id="gw_macs_tr" style="display: ]] .. ternary(is_mirrored_traffic, "table-row", "none") .. [[;">
           <th>]] .. i18n("if_stats_config.gw_macs") .. [[</th>
           <td>]])

print('<input style="width:36em;" class="form-control" name="gw_macs" placeholder="' ..
                  i18n("if_stats_config.gw_macs_example", {
                example = "00:11:22:33:44:55,00:11:22:33:44:66"
            }) .. '" value="' .. gw_macs .. '">')

-- per-interface Network Discovery
    if interface.isDiscoverableInterface() then
        local discover = require "discover_utils"

local interface_network_discovery = true

if _SERVER["REQUEST_METHOD"] == "POST" then
            if _POST["interface_network_discovery"] ~= "1" then
                interface_network_discovery = false
            end

ntop.setPref(discover.getInterfaceNetworkDiscoveryEnabledKey(interface.getId()),
                tostring(interface_network_discovery))
        else
            interface_network_discovery = ntop.getPref(
                discover.getInterfaceNetworkDiscoveryEnabledKey(interface.getId()))

if interface_network_discovery == "false" then
                interface_network_discovery = false
            end
        end

print [[<tr>
         <th>]]
        print(i18n("if_stats_config.interface_network_discovery"))
        print [[</th>
    <td>]]

print(template.gen("on_off_switch.html", {
            id = "interface_network_discovery",
            checked = interface_network_discovery
        }))

print [[
      </td>
      </tr>]]
    end

if not is_sub_interface then
        local cur_companion = companion_interface_utils.getCurrentCompanion(ifstats.id)
        local companions = companion_interface_utils.getAvailableCompanions()

if table.len(companions) > 1 then
            print [[
       <tr>
         <th>]]
            print(i18n("if_stats_config.companion_interface"))
            print [[</th>
         <td>
           <select name="companion_interface" class="form-select" style="width:36em; display:inline;">]]

for _, companion in ipairs(companions) do
                local companion_id = companion["ifid"]
                local companion_name = companion["ifname"]
                local label = companion_name
                if companion_name ~= "None" then
                    label = getHumanReadableInterfaceName(companion_name)
                end

print [[<option value="]]
                print(companion_id)
                print [[" ]]
                if cur_companion == companion_id then
                    print('selected="selected"')
                end
                print [[">]]
                print(label)
                print [[</option>]]
            end

print [[
           </select>
         </td>
       </tr>]]
        end
    end

if has_traffic_recording_page then
        local cur_provider = recording_utils.getCurrentTrafficRecordingProvider(ifstats.id)
        local providers = recording_utils.getAvailableTrafficRecordingProviders()

-- only 1 provider means there's only the default ntopng
        -- so no need to show this extra menu entry
        if table.len(providers) > 1 then
            print [[
       <tr>
         <th>]]
            print(i18n("traffic_recording.traffic_recording_provider"))
            print [[</th>
         <td>
           <select name="traffic_recording_provider" class="form-select" style="width:36em; display:inline;">]]

for _, provider in pairs(providers) do
                local label = string.format("%s", provider["name"])
                if provider["conf"] then
                    label = string.format("%s (%s)", provider["name"], provider["conf"])
                end

if provider["name"] == "ntopng" and not is_packet_interface then
                    -- non-packet interfaces
                    label = "None"
                end

print [[<option value="]]
                print(provider["name"])
                print [[" ]]
                if cur_provider == provider["name"] then
                    print('selected="selected"')
                end
                print [[">]]
                print(label)
                print [[</option>]]
            end

print [[
           </select>
         </td>
       </tr>]]
        end
    end

if not is_sub_interface and not have_nedge then
        local cur_mode = ntop.getCache(disaggregation_criterion_key)
        if isEmptyString(cur_mode) then
            cur_mode = "none"
        end

local labels = {i18n("prefs.none"), i18n("prefs.vlan"), i18n("prefs.probe_ip_address"),
                        i18n("prefs.ingress_egress_flow_interface"), i18n("prefs.ingress_flow_interface"),
                        i18n("prefs.ingress_vrf_id"), i18n("prefs.probe_ip_and_ingress_iface_idx")}

local values = {}
        if is_packet_interface then
            values = {"none", "vlan"}
        else
            values = {"none", "vlan", "probe_ip", "iface_idx", "ingress_iface_idx", "ingress_vrf_id",
                      "probe_ip_and_ingress_iface_idx"}
        end

print [[
       <tr>
         <th>]]
        print(i18n("prefs.dynamic_interfaces_creation_title"))
        print [[</th>
         <td>
           <select name="disaggregation_criterion" class="form-select" style="width:36em; display:inline;">]]

for k, value in ipairs(values) do
            local label = labels[k]
            print [[<option value="]]
            print(value)
            print [[" ]]
            if cur_mode == value then
                print('selected="selected"')
            end
            print [[">]]
            print(label)
            print [[</option>]]
        end

print [[
           </select>
     ]]

print([[
        <small>
        <details class='mt-2'>
         <summary>
            <span class="ntop_notes" data-bs-toggle="tooltip" data-placement="right" title=']] ..
                  i18n("click_to_expand") .. [['>
               ]] .. i18n("notes") .. [[ <i class='fas fa-question-circle '></i>
            </span>
         </summary>
         <p>]] .. i18n("prefs.dynamic_interfaces_creation_description") .. [[</p>
         <p>]] .. i18n("prefs.dynamic_interfaces_creation_note_0") .. [[</p>
         <p>]] .. i18n("prefs.dynamic_interfaces_creation_note_4") .. [[</p>
         <p>]] .. i18n("prefs.dynamic_interfaces_creation_note_1") .. [[</p>
         <p>]] .. (not is_packet_interface and i18n("prefs.dynamic_interfaces_creation_note_2") or '') .. [[</p>
         <p>]] .. (not is_packet_interface and i18n("prefs.dynamic_interfaces_creation_note_3") or '') .. [[</p>
        </details>
        </small>
     ]])

print [[
         </td>
       </tr>]]

-- Show dynamic traffic in the master interface
        local show_dyn_iface_traffic = false
        local show_dyn_iface_traffic_pref = string.format("ntopng.prefs.ifid_%d.show_dynamic_interface_traffic",
            interface.getId())

if _SERVER["REQUEST_METHOD"] == "POST" then
            if _POST["show_dyn_iface_traffic"] == "1" then
                show_dyn_iface_traffic = true
            end

ntop.setPref(show_dyn_iface_traffic_pref, ternary(show_dyn_iface_traffic == true, '1', '0'))
            interface.updateDynIfaceTrafficPolicy()
        else
            show_dyn_iface_traffic = ternary(ntop.getPref(show_dyn_iface_traffic_pref) == '1', true, false)
        end

print [[<tr>
    <th>
    ]]
        print(i18n("if_stats_config.show_dyn_iface_traffic"))
        print [[
       <i class='fas fa-question-circle ' data-bs-toggle="tooltip" data-placement="top" title=']]
        print(i18n("if_stats_config.show_dyn_iface_traffic_note"))
        print [['></i>
    </th>
    <td>]]

print(template.gen("on_off_switch.html", {
            id = "show_dyn_iface_traffic",
            checked = show_dyn_iface_traffic
        }))
        print [[
         </td>
      </tr>]]

-- Show Push Host Filters to PF_RING toggle
        local push_host_filters = false
        local push_host_filters_pref = string.format("ntopng.prefs.ifid_%d.push_host_filters_to_pfring",
            interface.getId())

if _SERVER["REQUEST_METHOD"] == "POST" then
            if _POST["push_host_filters"] == "1" then
                push_host_filters = true
            end

ntop.setPref(push_host_filters_pref, ternary(push_host_filters == true, '1', '0'))
            interface.updatePushFiltersSettings()
        else
            push_host_filters = ternary(ntop.getPref(push_host_filters_pref) == '1', true, false)
        end

print [[<tr>
    <th>
    ]]
        print(i18n("if_stats_config.toggle_push_host_filters"))
        print [[
       <i class='fas fa-question-circle ' data-bs-toggle="tooltip" data-placement="top" title=']]
        print(i18n("if_stats_config.toggle_push_host_filters_note"))
        print [['></i>
    </th>
    <td>]]

local queue = "pfring." .. interface.getId() .. ".filter.host.queue"

print(template.gen("on_off_switch.html", {
            id = "push_host_filters",
            checked = push_host_filters,
            label = "<small>" .. i18n("if_stats_config.toggle_push_host_filters_queue") .. ": <i>" .. queue ..
                "</i></small>"
        }))

print [[
         </td>
      </tr>]]

end

print [[
</table>
   <button class="btn btn-primary" style="float:right; margin-right:1em; margin-left: auto" disabled="disabled" type="submit">]]
    print(i18n("save_settings"))
    print [[</button><br><br>
   </form>
   <script>
      aysHandleForm("#iface_config");
   </script>]]

elseif (page == "internals") then
    internals_utils.printInternals(ifid, true --[[ hash tables ]] , true --[[ periodic activities ]] , true --[[ checks]] ,
        true --[[ queues --]] )
    print [[
   </table>
]]

elseif (page == "snmp_bind") then
    if ((not hasSnmpDevices(ifstats.id)) or (not is_packet_interface)) then
        return
    end

local snmp_host = _POST["ip"]
    local snmp_interface = _POST["snmp_port_idx"] or ""

if (snmp_host ~= nil) then
        -- snmp_host can be empty
        snmp_utils.set_snmp_bound_interface(ifstats.id, snmp_host, snmp_interface)
    else
        local value = snmp_utils.get_snmp_bound_interface(ifstats.id)

if value ~= nil then
            snmp_host = value.snmp_device
            snmp_interface = value.snmp_port
        end
    end

local snmp_devices = snmp_utils.get_snmp_devices(ifstats.id)

print [[
<form id="snmp_bind_form" method="post" style="margin-bottom:3em;">
   <table class="table table-bordered table-striped">]]

print [[
      <tr>
         <th>]]
    print(i18n("snmp.snmp_device"))
    print [[</th>
         <td>
            <select class="form-select" style="width:30em; display:inline;" id="snmp_bind_device" name="ip">
               <option]]
    if isEmptyString(snmp_host) then
        print(" selected")
    end
    print [[ value="">Not Bound</option>
         ]]

for _, device in pairs(snmp_devices) do
        print('<option value="' .. device.ip .. '"')
        if (snmp_host == device.ip) then
            print(' selected')
        end
        print('>' .. device.name .. ' (' .. device.ip .. ')</option>')
    end

print [[
            </select>
            <a class="btn" id="snmp_device_link" style="padding:0.2em; margin-left:0.3em;" href="#"]]

if isEmptyString(snmp_host) then
        print(" disabled")
    end

print [[>]]
    print(i18n("snmp.view_device"))
    print [[</i></a>
         </td>
      </tr>
      <tr>
         <th>]]
    print(i18n("snmp.snmp_interface"))
    print [[</th>
            <td>
               <select class="form-select" style="width:30em; display:inline;" id="snmp_bind_interface" name="snmp_port_idx">]]

if not isEmptyString(snmp_interface) then
        -- This is neeeded to initialized ays form fields
        print('<option value="' .. snmp_interface .. '" selected></option>')
    end

print [[
               </select>
               <img id="snmp_loading" style="margin-left:0.5em; visibility:hidden;" src="]]
    print(ntop.getHttpPrefix())
    print [[/img/loading.gif"\>
            </td>
      </tr>
   </table>
   <input type="hidden" name="csrf" value="]]
    print(ntop.getRandomCSRFValue())
    print [[" />
   <button id="snmp_bind_submit" class="btn btn-primary" style="float:right; margin-right:1em; margin-left: auto" disabled="disabled" type="submit">]]
    print(i18n("save_settings"))
    print [[</button>
</form>

<b>]]
    print(i18n("snmp.note") .. ":")
    print [[</b><br>
<small>]]
    print(i18n("snmp.bound_interface_description"))
    print [[</small>

function snmp_check_snmp_list() {
      var iflist = $("#snmp_bind_interface");

if ($("option", iflist).length > 0)
         iflist.removeAttr("disabled");
      else
         iflist.attr("disabled", "disabled");

aysRecheckForm('#snmp_bind_form');
   }

function snmp_recheck_selection() {
      var iflist = $("#snmp_bind_interface");
      var selected_device = $("#snmp_bind_device option:selected").val();

// Remove existing entries
      $("option", iflist).remove();

if (snmp_bind_port_ajax != null) {
         snmp_bind_port_ajax.abort();
         snmp_bind_port_ajax = null;
      }
      snmp_check_snmp_list();

if (selected_device) {
         snmp_set_loading_status(true);
         $("#snmp_device_link").removeAttr("disabled");
         $("#snmp_device_link").attr("href", "]]
    print(ntop.getHttpPrefix())
    print [[/lua/pro/enterprise/snmp_device_details.lua?host=" + selected_device);

snmp_bind_port_ajax = $.ajax({
          type: 'GET',
          url: ']]
    print(ntop.getHttpPrefix())
    print [[/lua/pro/enterprise/get_snmp_device_details.lua',
          data: { ifid: ]]
    print(ifstats.id)
    print [[, ip: selected_device, iftype_filter:'snmp_binding' },
          success: function(rsp) {
            if (rsp.interfaces) {
               for (var ifidx in rsp.interfaces) {
                  var snmp_interface = rsp.interfaces[ifidx];
                  var selected = snmp_interface.bound ? " selected" : "";
                  iflist.append('<option value="' + ifidx + '"' + selected + '>' + snmp_interface.label + '</option>');
                  snmp_interface.label;
               }

snmp_check_snmp_list();
            }
          }, complete: function() {
            snmp_set_loading_status(false);
          }
        });
      } else {
         snmp_set_loading_status(false);
         $("#snmp_device_link").attr("disabled", "disabled");
         snmp_check_snmp_list();
      }
   }

aysHandleForm("#snmp_bind_form");
   snmp_check_snmp_list();

$("#snmp_bind_device").change(snmp_recheck_selection);
   $(function() {
      // let it pass some time to ays initialization
      snmp_recheck_selection();
   });
</script>]]
elseif (page == "sub_interfaces") then
    if (isAdministrator() and ntop.isEnterpriseM()) then
        dofile(dirs.installdir .. "/pro/scripts/lua/enterprise/sub_interfaces.lua")
    end
elseif (page == "syslog_producers") then
    if (isAdministrator()) then
        dofile(dirs.installdir .. "/scripts/lua/syslog_producers.lua")
    end
elseif (page == "unassigned_pool_devices") then
    dofile(dirs.installdir .. "/scripts/lua/unknown_devices.lua")
elseif (page == "dhcp") then
    dofile(dirs.installdir .. "/scripts/lua/admin/dhcp.lua")
elseif page == "traffic_report" then
    package.path = dirs.installdir .. "/pro/scripts/lua/enterprise/?.lua;" .. package.path
    local traffic_report = require "traffic_report"

traffic_report.generate_traffic_report()
end

print("<script>\n")
print("var last_pkts  = " .. ifstats.stats.packets .. ";\n")
print("var last_in_pkts  = " .. ifstats.eth.ingress.packets .. ";\n")
print("var last_out_pkts  = " .. ifstats.eth.egress.packets .. ";\n")
print("var last_drops = " .. ifstats.stats.drops .. ";\n")
print("var last_engaged_alerts = " .. ifstats.num_alerts_engaged .. ";\n")
print("var last_dropped_alerts = " .. ifstats.num_dropped_alerts .. ";\n")
print("var last_num_local_hosts_anomalies = " .. ifstats.anomalies.num_local_hosts_anomalies .. ";\n")
print("var last_num_remote_hosts_anomalies = " .. ifstats.anomalies.num_remote_hosts_anomalies .. ";\n")
print("var last_if_probe_packet_drops = 0;\n")

if (ifstats.zmqRecvStats ~= nil) then
    print("var last_zmq_time = 0;\n")
    print("var last_zmq_remote_bps = " .. (ifstats.remote_bps or 0) .. ";\n")
    print("var last_zmq_remote_pps = " .. (ifstats.remote_pps or 0) .. ";\n")
    print("var last_zmq_flows = " .. (ifstats.zmqRecvStats.flows or 0) .. ";\n")
    print("var last_zmq_dropped_flows = " .. (ifstats.zmqRecvStats.dropped_flows or 0) .. ";\n")
    print("var last_zmq_events = " .. (ifstats.zmqRecvStats.events or 0) .. ";\n")
    print("var last_zmq_counters = " .. (ifstats.zmqRecvStats.counters or 0) .. ";\n")
    print("var last_zmq_msg_drops = " .. (ifstats.zmqRecvStats.zmq_msg_drops or 0) .. ";\n")
    print("var last_zmq_msg_rcvd = " .. (ifstats.zmqRecvStats.zmq_msg_rcvd or 0) .. ";\n")
    print("var last_zmq_drops_export_queue_full = " .. (ifstats["zmq.drops.export_queue_full"] or 0) .. ";\n")
    print("var last_zmq_drops_flow_collection_drops = " .. (ifstats["zmq.drops.flow_collection_drops"] or 0) .. ";\n")
    print("var last_zmq_drops_flow_collection_udp_socket_drops = " ..
              (ifstats["zmq.drops.flow_collection_udp_socket_drops"] or 0) .. ";\n")
    print("var last_zmq_avg_msg_flows = 1;\n")

print("var last_probe_zmq_exported_flows = " .. (ifstats["zmq.num_flow_exports"] or 0) .. ";\n")
end

if ifstats.stats.discarded_probing_packets then
    print("var last_discarded_probing_pkts  = " .. ifstats.stats.discarded_probing_packets .. ";\n")
end

print [[
function resetCounters(drops_only) {
  var action = "reset_all";
  if(drops_only) action = "reset_drops";
  $.ajax({ type: 'post',
    url: ']]
print(ntop.getHttpPrefix())
print [[/lua/reset_stats.lua',
    data: {ifid: ]]
print(ifstats.id)
print [[, resetstats_mode:  action, csrf: "]]
print(ntop.getRandomCSRFValue())
print [["},
    success: function(rsp) {},
    complete: function() {
      /* reload the page to generate a new CSRF */
      window.location.href = window.location.href;
    }
  });
}

var resetInterfaceCounters = function(drops_only) {
  if(drops_only)
    $('#reset_drops_dialog').modal('show');
  else
    $('#reset_stats_dialog').modal('show');
}

]]
if page == 'overview' or isEmptyString(page) then
    print [[
    setInterval(function() {
        $.ajax({
            type: 'GET',
            url: ']]
    print(ntop.getHttpPrefix())
    print [[/lua/rest/v2/get/interface/data.lua',
            data: { iffilter: "]]
    print(tostring(interface.name2id(ifstats.name)))
    print [[" },
            success: function(content) {
            if(content["rc_str"] != "OK") {
            return;
            }

const rsp = content["rsp"];
            const v = NtopUtils.bytesToVolume(rsp.bytes);
            $('#if_bytes').html(v);

$('#if_in_bytes').html(NtopUtils.bytesToVolume(rsp.bytes_download_since_reset));
            $('#if_out_bytes').html(NtopUtils.bytesToVolume(rsp.bytes_upload_since_reset));
            $('#if_in_pkts').html(NtopUtils.addCommas(rsp.packets_download_since_reset) + " Pkts");
            $('#if_out_pkts').html(NtopUtils.addCommas(rsp.packets_upload_since_reset)  + " Pkts");
            $('#pkts_in_trend').html(NtopUtils.get_trend(rsp.bytes_download, last_in_pkts));
            $('#pkts_out_trend').html(NtopUtils.get_trend(rsp.bytes_upload, last_out_pkts));
            last_in_pkts = rsp.bytes_download;
            last_out_pkts = rsp.bytes_upload;

if (typeof rsp.zmqRecvStats !== 'undefined') {
            var diff, time_diff, flows_label;
            var now = (new Date()).getTime();

if(last_zmq_time > 0) {
                time_diff = now - last_zmq_time;
                diff = rsp.zmqRecvStats.flows - last_zmq_flows;

if(diff > 0) {
                    rate = ((diff * 1000)/time_diff).toFixed(1);
                    flows_label = " [" + NtopUtils.fflows(rate) + "] " + NtopUtils.get_trend(1,0);
                } else {
                    flows_label = " "+NtopUtils.get_trend(0,0);
                }
            } else {
                flows_label = " "+NtopUtils.get_trend(0,0);
            }
                const pctg_dropped_flows = ((rsp.zmqRecvStats.flows + rsp.zmqRecvStats.dropped_flows) ? rsp.zmqRecvStats.dropped_flows * 100 / (rsp.zmqRecvStats.flows + rsp.zmqRecvStats.dropped_flows) : 0).toFixed(1)
                const pctg_dropped_zmq_msg = ((rsp.zmqRecvStats.zmq_msg_rcvd + rsp.zmqRecvStats.zmq_msg_drops) ? rsp.zmqRecvStats.zmq_msg_drops * 100 / (rsp.zmqRecvStats.zmq_msg_rcvd + rsp.zmqRecvStats.zmq_msg_drops) : 0).toFixed(1)

$('#if_zmq_remote_bps').html(NtopUtils.bitsToSize(rsp.remote_bps) + " " + NtopUtils.get_trend(rsp.remote_bps, last_zmq_remote_bps));
            $('#if_zmq_remote_pps').html(NtopUtils.fpackets(rsp.remote_pps) + " " + NtopUtils.get_trend(rsp.remote_pps, last_zmq_remote_pps));
            $('#if_zmq_flows').html(NtopUtils.addCommas(rsp.zmqRecvStats.flows)+flows_label);
            $('#if_zmq_dropped_flows').html(NtopUtils.addCommas(rsp.zmqRecvStats.dropped_flows)+" [ "+pctg_dropped_flows+" % ] "+NtopUtils.get_trend(rsp.zmqRecvStats.dropped_flows, last_zmq_dropped_flows));
            $('#if_zmq_events').html(NtopUtils.addCommas(rsp.zmqRecvStats.events)+" "+NtopUtils.get_trend(rsp.zmqRecvStats.events, last_zmq_events));
            $('#if_zmq_counters').html(NtopUtils.addCommas(rsp.zmqRecvStats.counters)+" "+NtopUtils.get_trend(rsp.zmqRecvStats.counters, last_zmq_counters));
            $('#if_zmq_msg_drops').html(NtopUtils.addCommas(rsp.zmqRecvStats.zmq_msg_drops)+" [ "+pctg_dropped_zmq_msg+" % ] "+NtopUtils.get_trend(rsp.zmqRecvStats.zmq_msg_drops, last_zmq_msg_drops));
            $('#if_zmq_drops_export_queue_full').html(NtopUtils.addCommas(rsp["zmq.drops.export_queue_full"])+" "+NtopUtils.get_trend(rsp["zmq.drops.export_queue_full"], last_zmq_drops_export_queue_full));
            $('#if_zmq_drops_flow_collection_drops').html(NtopUtils.addCommas(rsp["zmq.drops.flow_collection_drops"])+" "+NtopUtils.get_trend(rsp["zmq.drops.flow_collection_drops"], last_zmq_drops_flow_collection_drops));
            $('#if_zmq_drops_flow_collection_udp_socket_drops').html(NtopUtils.addCommas(rsp["zmq.drops.flow_collection_udp_socket_drops"])+" "+NtopUtils.get_trend(rsp["zmq.drops.flow_collection_udp_socket_drops"], last_zmq_drops_flow_collection_udp_socket_drops));
            $('#if_zmq_msg_rcvd').html(NtopUtils.addCommas(rsp.zmqRecvStats.zmq_msg_rcvd)+" "+NtopUtils.get_trend(rsp.zmqRecvStats.zmq_msg_rcvd, last_zmq_msg_rcvd));
            $('#if_zmq_avg_msg_flows').html(NtopUtils.addCommas(NtopUtils.formatValue(rsp.zmqRecvStats.zmq_avg_msg_flows)));
            $('#if_num_remote_zmq_flow_exports').html(NtopUtils.addCommas(rsp["zmq.num_flow_exports"])+" "+NtopUtils.get_trend(rsp["zmq.num_flow_exports"], last_probe_zmq_exported_flows));

last_remote_pps = rsp.remote_pps;
            last_remote_bps = rsp.remote_bps;
            last_zmq_flows = rsp.zmqRecvStats.flows;
            last_zmq_dropped_flows = rsp.zmqRecvStats.dropped_flows;
            last_zmq_events = rsp.zmqRecvStats.events;
            last_zmq_counters = rsp.zmqRecvStats.counters;
            last_zmq_msg_drops = rsp.zmqRecvStats.zmq_msg_drops;
            last_zmq_drops_export_queue_full = rsp["zmq.drops.export_queue_full"];
            last_zmq_drops_flow_collection_drops = rsp["zmq.drops.flow_collection_drops"];
            last_zmq_drops_flow_collection_udp_socket_drops = rsp["zmq.drops.flow_collection_udp_socket_drops"];
            last_zmq_msg_rcvd = rsp.zmqRecvStats.zmq_msg_rcvd;
            last_zmq_avg_msg_flows = rsp.zmqRecvStats.zmq_avg_msg_flows;
            last_probe_zmq_exported_flows = rsp["zmq.num_flow_exports"];
            last_zmq_time = now;
            }

$('#if_pkts').html(NtopUtils.addCommas(rsp.packets)+"]]

print(" Pkts\");")

if have_nedge and ifstats.type == "netfilter" and ifstats.netfilter then
        local st = ifstats.netfilter

print("var last_nfq_queue_total = " .. st.nfq.queue_total .. ";\n")
        print("var last_nfq_handling_failed = " .. st.failures.handle_packet .. ";\n")
        print("var last_nfq_enobufs = " .. st.failures.no_buffers .. ";\n")

print [[
            if(rsp.netfilter.nfq.queue_pct > 80) {
            $('#nfq_queue_total').addClass("badge bg-danger");
            } else {
            $('#nfq_queue_total').removeClass("badge bg-danger");
            }
            $('#nfq_queue_total').html(NtopUtils.fint(rsp.netfilter.nfq.queue_total) + " [" + NtopUtils.fint(rsp.netfilter.nfq.queue_pct) + " %]");
            $('#nfq_queue_total_trend').html(NtopUtils.get_trend(rsp.netfilter.nfq.queue_total, last_nfq_queue_total));
            $('#nfq_handling_failed').html(NtopUtils.fint(rsp.netfilter.failures.handle_packet));
            $('#nfq_handling_failed_trend').html(NtopUtils.get_trend(rsp.netfilter.failures.handle_packet, last_nfq_handling_failed));
            $('#nfq_enobufs').html(NtopUtils.fint(rsp.netfilter.failures.no_buffers));
            $('#nfq_enobufs_trend').html(NtopUtils.get_trend(rsp.netfilter.failures.no_buffers, last_nfq_enobufs));
            $('#num_conntrack_entries').html(NtopUtils.fint(rsp.netfilter.nfq.num_conntrack_entries)+ " [" + NtopUtils.fint((rsp.netfilter.nfq.num_conntrack_entries*100)/rsp.num_flows) + " %]");
    ]]
    end

if ifstats.stats.discarded_probing_packets then
        print [[
            $('#if_discarded_probing_bytes').html(NtopUtils.bytesToVolume(rsp.discarded_probing_bytes));
            $('#if_discarded_probing_pkts').html(NtopUtils.formatPackets(rsp.discarded_probing_packets));
            $('#if_discarded_probing_trend').html(NtopUtils.get_trend(rsp.discarded_probing_packets, last_discarded_probing_pkts));
            last_discarded_probing_pkts = rsp.discarded_probing_packets;
    ]]
    end

print [[
            var pctg = 0;
            var drops = "";
            var last_pkt_retransmissions = ]]
    print(tostring(ifstats.tcpPacketStats.retransmissions))
    print [[;
            var last_pkt_ooo =  ]]
    print(tostring(ifstats.tcpPacketStats.out_of_order))
    print [[;
            var last_pkt_lost = ]]
    print(tostring(ifstats.tcpPacketStats.lost))
    print [[;

$('#pkt_retransmissions').html(NtopUtils.fint(rsp.tcpPacketStats.retransmissions)+" Pkts" + NtopUtils.percentage(rsp.tcpPacketStats.retransmissions, rsp.packets));
            $('#pkt_retransmissions_trend').html(NtopUtils.get_trend(rsp.tcpPacketStats.retransmissions, last_pkt_retransmissions));
            $('#pkt_ooo').html(NtopUtils.fint(rsp.tcpPacketStats.out_of_order)+" Pkts" + NtopUtils.percentage(rsp.tcpPacketStats.out_of_order, rsp.packets));
            $('#pkt_ooo_trend').html(NtopUtils.get_trend(rsp.tcpPacketStats.out_of_order, last_pkt_ooo));
            $('#pkt_lost').html(NtopUtils.fint(rsp.tcpPacketStats.lost)+" Pkts");
            $('#pkt_lost_trend').html(NtopUtils.get_trend(rsp.tcpPacketStats.lost, last_pkt_lost) + NtopUtils.percentage(rsp.tcpPacketStats.lost, rsp.packets));
            last_pkt_retransmissions = rsp.tcpPacketStats.retransmissions;
            last_pkt_ooo = rsp.tcpPacketStats.out_of_order;
            last_pkt_lost = rsp.tcpPacketStats.lost;

$('#pkts_trend').html(NtopUtils.get_trend(rsp.packets, last_pkts));
            $('#drops_trend').html(NtopUtils.get_trend(rsp.drops, last_drops));
            last_pkts = rsp.packets;
            last_drops = rsp.drops;

$('#engaged_alerts_trend').html(NtopUtils.get_trend(rsp.engaged_alerts, last_engaged_alerts));
            last_engaged_alerts = rsp.engaged_alerts;
            $('#dropped_alerts_trend').html(NtopUtils.get_trend(rsp.dropped_alerts, last_dropped_alerts));
            last_dropped_alerts = rsp.dropped_alerts;
            $('#dropped_alerts').html(NtopUtils.fint(last_dropped_alerts));

$('#local_hosts_anomalies').html(NtopUtils.fint(rsp.num_local_hosts_anomalies));
            $('#local_hosts_anomalies_trend').html(NtopUtils.get_trend(rsp.num_local_hosts_anomalies, last_num_local_hosts_anomalies));
            last_num_local_hosts_anomalies = rsp.num_local_hosts_anomalies;
            $('#remote_hosts_anomalies').html(NtopUtils.fint(rsp.num_remote_hosts_anomalies));
            $('#remote_hosts_anomalies_trend').html(NtopUtils.get_trend(rsp.num_remote_hosts_anomalies, last_num_remote_hosts_anomalies));
            last_num_remote_hosts_anomalies = rsp.num_remote_hosts_anomalies;

if((rsp.packets + rsp.drops) > 0) {
            pctg = ((rsp.drops*100)/(rsp.packets+rsp.drops)).toFixed(2);
            }

if(rsp.drops > 0) {
            drops = '<span class="badge bg-danger">';
            }
            drops = drops + NtopUtils.addCommas(rsp.drops)+" " +"]] print(ternary(ifstats.zmqRecvStats, i18n("flows"), i18n("pkts")) .. "\"\n")

print[[
            if(pctg > 0)      { drops  += " [ "+pctg+" % ]"; }
            if(rsp.drops > 0) { drops  += '</span>'; }
            $('#if_drops').html(drops);

/* ************************************ */

if(rsp.tot_nprobe_pkts  == 0) {
            pctg = 0;
        } else {
            pctg = ((100. * rsp.tot_pkt_drops) / rsp.tot_nprobe_pkts).toFixed(2);
        }

$('#if_probe_packet_drops').html(pctg);
        $('#dropped_probe_packets_trend').html(NtopUtils.get_trend(pctg, last_if_probe_packet_drops));
        last_if_probe_packet_drops = pctg;

/* ************************************ */

$('#exported_flows').html(NtopUtils.fint(rsp.flow_export_count));
            $('#exported_flows_rate').html(NtopUtils.fflows(rsp.flow_export_rate));
            if(rsp.flow_export_drops > 0) {
            $('#exported_flows_drops')
                .addClass("badge bg-danger")
                .html(NtopUtils.fint(rsp.flow_export_drops));
            if(rsp.flow_export_count > 0) {
                $('#exported_flows_drops_pct')
                .addClass("badge bg-danger")
                .html("[" + NtopUtils.fpercent(rsp.flow_export_drops / (rsp.flow_export_count + rsp.flow_export_drops + 1) * 100) + "]");
            } else {
                $('#exported_flows_drops_pct').addClass("badge bg-danger").html("[100%]");
            }
            } else {
            $('#exported_flows_drops').removeClass().html("0");
            $('#exported_flows_drops_pct').removeClass().html("[0%]");
            }
    ]]

if interface.isSyslogInterface() then
        print [[
            $('#syslog_tot_events').html(rsp.syslog.tot_events);
    ]]
    end

print [[
            }
                });
        }, ]]
    print(interface.getStatsUpdateFreq(ifstats.id) .. "")
    print [[ * 1000)
]]
end
print[[

</script>

]]

print [[
<script>
$(document).ready(function()
    {
        $("#icmp_table_4").tablesorter();
        $("#icmp_table_6").tablesorter();
        $("#arp_table").tablesorter();
        $("#if_stats_ndpi").tablesorter();
        $("#if_stats_ndpi_categories").tablesorter();
    }
);
</script>
]]

dofile(dirs.installdir .. "/scripts/lua/inc/footer.lua")

if show_zmq_encryption_public_key == true then
    print [[
      <script type='text/javascript'>
      const copyButton = document.getElementById("copy");
      let copyKey=() => {
         const input = document.getElementById("hiddenKey");
         input.type="text";
         input.select();
         document.execCommand("copy");
         input.type='hidden';
      }

copyButton.onclick = copyKey;

</script>
   ]]
end

print [[
  <script type='text/javascript'>
      $(document).ready(function(){
        $('#copy').tooltip({title: "]]
print(i18n("copied"))
print [[", trigger: "focus", delay: {"show": 50, "hide": 300}});

});
  </script>
]]