applications/luci-app-https-dns-proxy/luasrc/model/cbi/https-dns-proxy.lua

   1 local sys = require "luci.sys"
   2 local util = require "luci.util"
   3 local fs = require "nixio.fs"
   4 local dispatcher = require "luci.dispatcher"
   5 local i18n = require "luci.i18n"
   6 local uci = require("luci.model.uci").cursor()
   7
   8 local packageName = "https-dns-proxy"
   9 local providers_dir = "/usr/lib/lua/luci/" .. packageName .. "/providers/"
  10
  11 function get_provider_name(value)
  12         for filename in fs.dir(providers_dir) do
  13                 local p_func = loadfile(providers_dir .. filename)
  14                 setfenv(p_func, { _ = i18n.translate })
  15                 local p = p_func()
  16                 value = value:gsub('[%p%c%s]', '')
  17                 p.url_match = p.resolver_url:gsub('[%p%c%s]', '')
  18                 if value:match(p.url_match) then
  19                         return p.label
  20                 end
  21         end
  22         return translate("Unknown Provider")
  23 end
  24
  25 local tmpfsStatus, tmpfsStatusCode
  26 local ubusStatus = util.ubus("service", "list", { name = packageName })
  27 local tmpfsVersion = tostring(util.trim(sys.exec("opkg list-installed " .. packageName .. " | awk '{print $3}'")))
  28
  29 if not tmpfsVersion or tmpfsVersion == "" then
  30         tmpfsStatusCode = -1
  31         tmpfsVersion = ""
  32         tmpfsStatus = packageName .. " " .. translate("is not installed or not found")
  33 else
  34         tmpfsVersion = " [" .. packageName .. " " .. tmpfsVersion .. "]"
  35         if not ubusStatus or not ubusStatus[packageName] then
  36                 tmpfsStatusCode = 0
  37                 tmpfsStatus = translate("Stopped")
  38         else
  39                 tmpfsStatusCode, tmpfsStatus = 1, ""
  40                 for n = 1,1000 do
  41                         if ubusStatus and ubusStatus[packageName] and
  42                                  ubusStatus[packageName]["instances"] and
  43                                  ubusStatus[packageName]["instances"]["instance" .. n] and
  44                                  ubusStatus[packageName]["instances"]["instance" .. n]["running"] then
  45                                 local value, k, v, url, url_flag, la, la_flag, lp, lp_flag
  46                                 for k, v in pairs(ubusStatus[packageName]["instances"]["instance" .. n]["command"]) do
  47                                         if la_flag then la, la_flag = v, false end
  48                                         if lp_flag then lp, lp_flag = v, false end
  49                                         if url_flag then url, url_flag = v, false end
  50                                         if v == "-a" then la_flag = true end
  51                                         if v == "-p" then lp_flag = true end
  52                                         if v == "-r" then url_flag = true end
  53                                 end
  54                                 la = la or "127.0.0.1"
  55                                 lp = lp or n + 5053
  56                                 tmpfsStatus = tmpfsStatus .. translate("Running") .. ": " .. get_provider_name(url) .. " " .. translate("DoH") .. " " .. translate("at") .. " " .. la .. ":" .. lp .. "\n"
  57                         else
  58                                 break
  59                         end
  60                 end
  61         end
  62 end
  63
  64 m = Map("https-dns-proxy", translate("DNS Over HTTPS Proxy Settings"))
  65
  66 h = m:section(TypedSection, "_dummy", translate("Service Status") .. tmpfsVersion)
  67 h.template = "cbi/nullsection"
  68 ss = h:option(DummyValue, "_dummy", translate("Service Status"))
  69 if tmpfsStatusCode == -1 then
  70         ss.template = packageName .. "/status"
  71         ss.value = tmpfsStatus
  72 else
  73                 if tmpfsStatusCode == 0 then
  74                         ss.template = packageName .. "/status"
  75                 else
  76                         ss.template = packageName .. "/status-textarea"
  77                 end
  78         ss.value = tmpfsStatus
  79         buttons = h:option(DummyValue, "_dummy")
  80         buttons.template = packageName .. "/buttons"
  81 end
  82
  83 s3 = m:section(TypedSection, "https-dns-proxy", translate("Instances"), translate("When you add/remove any instances below, they will be used to override the 'DNS forwardings' section of ")
  84                 .. [[ <a href="]] .. dispatcher.build_url("admin/network/dhcp") .. [[">]]
  85                 .. translate("DHCP and DNS") .. [[</a>]] .. "."
  86     .. "<br />"
  87     .. translate("For more information on different options check ")
  88                 .. [[ <a href="https://adguard.com/en/adguard-dns/overview.html">]]
  89     .. "AdGuard.com" .. [[</a>]] .. ", "
  90                 .. [[ <a href="https://cleanbrowsing.org/guides/dnsoverhttps">]]
  91     .. "CleanBrowsing.org" .. [[</a>]] .. " " .. translate("and") .. " "
  92                 .. [[ <a href="https://www.quad9.net/doh-quad9-dns-servers/">]]
  93     .. "Quad9.net" .. [[</a>]] .. ".")
  94 s3.template = "cbi/tblsection"
  95 s3.sortable  = false
  96 s3.anonymous = true
  97 s3.addremove = true
  98
  99 prov = s3:option(ListValue, "resolver_url", translate("Resolver"))
 100 for filename in fs.dir(providers_dir) do
 101         local p_func = loadfile(providers_dir .. filename)
 102         setfenv(p_func, { _ = i18n.translate })
 103         local p = p_func()
 104         prov:value(p.resolver_url, p.label)
 105         if p.default then
 106                 prov.default = p.resolver_url
 107         end
 108 end
 109 prov.forcewrite = true
 110 prov.write = function(self, section, value)
 111         if not value then return end
 112         for filename in fs.dir(providers_dir) do
 113                 local p_func = loadfile(providers_dir .. filename)
 114                 setfenv(p_func, { _ = i18n.translate })
 115                 local p = p_func()
 116                 value = value:gsub('[%p%c%s]', '')
 117                 p.url_match = p.resolver_url:gsub('[%p%c%s]', '')
 118                 if value:match(p.url_match) then
 119                         uci:set(packageName, section, "bootstrap_dns", p.bootstrap_dns)
 120                         uci:set(packageName, section, "resolver_url", p.resolver_url)
 121                 end
 122         end
 123         uci:save(packageName)
 124 end
 125
 126 la = s3:option(Value, "listen_addr", translate("Listen address"))
 127 la.datatype    = "host"
 128 la.placeholder = "127.0.0.1"
 129 la.rmempty     = true
 130
 131 local n = 0
 132 uci:foreach(packageName, packageName, function(s)
 133                 if s[".name"] == section then
 134                                 return false
 135                 end
 136                 n = n + 1
 137 end)
 138
 139 lp = s3:option(Value, "listen_port", translate("Listen port"))
 140 lp.datatype = "port"
 141 lp.value    = n + 5053
 142
 143 sa = s3:option(Value, "edns_subnet", translate("EDNS client subnet"))
 144 sa.rmempty  = true
 145
 146 ps = s3:option(Value, "proxy_server", translate("Proxy server"))
 147 ps.rmempty  = true
 148
 149 return m