FreifunkHochstift
/
ffho-packages


			
				
					
						
						
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							#!/usr/bin/lua

local util = require("luci.util")
local fs = require("nixio.fs")
local ltn12 = require 'luci.ltn12'
local sys = require("luci.sys")
local json = require("luci.jsonc")
local nixio = require 'nixio'
local platform_info = require("platform_info")
local site = require 'gluon.site_config'
local ip = require 'luci.ip'
local uci = require('luci.model.uci').cursor()

local hostname = sys.hostname()
local model = platform_info.get_model()
local release = util.trim(fs.readfile("/lib/gluon/release") or "")
local version = util.trim(fs.readfile("/lib/gluon/gluon-version") or "")
local primary_mac = require('gluon.sysconfig').primary_mac
local nodeid = require('gluon.util').node_id()

local contact = uci:get_first('gluon-node-info', 'owner', 'contact', '')
if contact == '' then
  contact = "none"
end
local autoupdater = uci:get('autoupdater', 'settings', 'branch')
if uci:get_bool('autoupdater', 'settings', 'enabled') == false then
  autoupdater = "disabled (" .. autoupdater .. ")"
end

local addresses = ""
for line in io.lines('/proc/net/if_inet6') do
  local matches = { line:match('^' .. string.rep('(%x%x%x%x)', 8) .. string.rep(' %x%x', 4) .. '%s+([^%s]+)$') }
  if matches[9] == 'br-client' then
    addresses = addresses .. "             " .. ip.IPv6(string.format('%s:%s:%s:%s:%s:%s:%s:%s', unpack(matches))):string():lower() .. "\n"
  end
end

local data = io.open('/proc/meminfo'):read('*a')
local fields = {}
for k, v in data:gmatch('([^\n:]+):%s*(%d+) kB') do
        fields[k] = tonumber(v)
end

local function location()
  local text = 'none'
  local locationid = uci:get_first('gluon-node-info', 'location')
  if locationid then
    local location = uci:get_all('gluon-node-info', locationid)
    if uci:get_bool('gluon-node-info', locationid, 'share_location') and location.latitude and location.longitude then
      text = location.latitude .. ', ' .. location.longitude
    end
  end

  if (site.status_page or {}).location_link then
    text = '<a href=' .. site.status_page.location_link .. nodeid .. '>' .. text .. '</a>'
  end
  return text
end

local function escape_html(s)
  return (s:gsub('&', '&amp;'):gsub('<', '&lt;'):gsub('>', '&gt;'):gsub('"', '&quot;'))
end

local function neighbours(ifname)
  local info = util.exec("gluon-neighbour-info -d ff02::2:1001 -p 1001 -r nodeinfo -t 3 -i " .. ifname)
  local macs = {}
  for _, line in ipairs(util.split(info)) do
    local data = json.parse(line)
    if data then
      local function add_macs(list)
        if list then
          for _, mac in ipairs(list) do
            macs[mac] = data
          end
        end
      end

      if data["network"] then
        add_macs(data["network"]["mesh_interfaces"])

        if data["network"]["mesh"] and data["network"]["mesh"]["bat0"] and
           data["network"]["mesh"]["bat0"]["interfaces"] then
          local interfaces = data["network"]["mesh"]["bat0"]["interfaces"]
          add_macs(interfaces["other"])
          add_macs(interfaces["wireless"])
          add_macs(interfaces["tunnel"])
        end
      end
    end
  end

  return macs
end

local function ip_proto(address)
  if address:match("%.") then
    return "IPv4"
  end
  if address:match(":") then
    return "IPv6"
  end
  return "???"
end

io.write("Content-type: text/html\n\n")
io.write("<!DOCTYPE html>\n")
io.write("<html>")
io.write("<head>")
io.write("<meta charset=\"utf-8\"/>")
io.write("<script src=\"/status.js\"></script>")
io.write("<title>" .. escape_html(hostname) .. "</title>")
io.write("</head>")
io.write("<body>")

io.write("<h1>" .. escape_html(hostname) .. "</h1>")
io.write("<pre>")

io.write("Community:   " .. escape_html(site.site_name) .. "\n")
io.write("Model:       " .. escape_html(model) .. "\n")
io.write("Firmware:    " .. escape_html(release) .. " / " .. escape_html(version) .. "\n")
io.write("MAC:         " .. escape_html(primary_mac) .. "\n")
io.write("Contact:     " .. escape_html(contact) .. "\n")
io.write("Uptime:      " .. escape_html(util.trim(sys.exec("uptime | sed 's/^ \+//'"))) .. "\n")
io.write("Autoupdater: " .. escape_html(autoupdater) .. "\n")
io.write("Location:    " .. location() .. "\n")
io.write("IPs:         " .. escape_html(util.trim(addresses)) .. "\n")
io.write("Memory:      " .. string.format("%.1f %% used, %.1f %% free",(fields.MemTotal-fields.MemFree)/fields.MemTotal*100,fields.MemFree/fields.MemTotal*100) .. "\n")
io.write("</pre>")

io.write("<h2>Neighbours</h2>")

local interfaces = util.split(util.trim(util.exec("iw dev | egrep 'type IBSS|type mesh' -B 5 | grep Interface | cut -d' ' -f2")))

for _, ifname in ipairs(interfaces) do
  io.write("<h3>" .. escape_html(ifname) .. "</h3>")
  io.write("<pre>")

  local peer=false
  for _, line in ipairs(util.split(util.exec("iw dev " .. ifname .. " station dump"))) do
    local mac = line:match("^Station (.*) %(on ")
    if mac then
      io.write("Station <a id=\"" .. escape_html(ifname) .. "-" .. mac .. "\">" .. mac .. "</a> (on " .. escape_html(ifname) .. ")\n")
      peer = true
    else
      io.write(escape_html(line) .. "\n")
    end
  end

  if peer == false then
    io.write("no peers connected")
  end

  io.write("</pre>")
end

io.write("<h2>VPN status</h2>")
io.write("<pre>")

if string.len(util.exec("ip -f inet address show dev br-wan | grep global")) >= 2 then
  io.write("IPv4 configured\n")
else
  io.write("IPv4 not configured\n")
end

if string.len(util.exec("ip -f inet6 address show dev br-wan | grep global")) >= 2 then
  io.write("IPv6 configured\n")
else
  io.write("IPv6 not configured\n")
end

local stat, fastd_status = pcall(
  function()
    local fastd_sock = nixio.socket('unix', 'stream')
    assert(fastd_sock:connect('/var/run/fastd.mesh_vpn.socket'))

    decoder = json.new()
    ltn12.pump.all(ltn12.source.file(fastd_sock), decoder:sink())
    return decoder:get()
  end
)

if stat then
  io.write(string.format("fastd running for %.3f seconds\n\n", fastd_status.uptime/1000))

  local peers = 0
  local connections = 0

  for key, peer in pairs(fastd_status.peers) do
    peers = peers+1

    if peer.connection then
      connections = connections+1
    end
  end

  io.write(string.format("There are %i peers configured, of which %i are connected:\n", peers, connections))

  for key, peer in pairs(fastd_status.peers) do
    io.write(string.format("%s: ", escape_html(peer.name)))

    if peer.connection then
      io.write(string.format("connected for %.3f seconds via %s\n", peer.connection.established/1000, ip_proto(peer.address)))
    else
      io.write("not connected\n")
    end
  end

else
  io.write("fastd not running")
end

io.write("</pre>")

io.write("<script>")
for _, ifname in ipairs(interfaces) do
  local macs = neighbours(ifname)
  for mac, node in pairs(macs) do
    local hostname = node["hostname"]
    local ip
    if node["network"] and node["network"]["addresses"] then
      for _, myip in ipairs(node["network"]["addresses"]) do
        if ip == nil and myip:sub(1, 5) ~= "fe80:" then
          ip = myip
        end
      end
    end

    if ip and hostname then
      io.write("update_node(\"" .. escape_html(ifname) .. "-" .. mac .. "\", \"" .. escape_html(ip) .. "\", \"" .. escape_html(hostname) .. "\");")
    end
  end
end

io.write("</script>")
io.write("</body>")
io.write("</html>")