applications/luci-app-dnscrypt-proxy/luasrc/model/cbi/dnscrypt-proxy/overview_tab.lua

   1 -- Copyright 2017-2018 Dirk Brenken (dev@brenken.org)
   2 -- This is free software, licensed under the Apache License, Version 2.0
   3
   4 local fs        = require("nixio.fs")
   5 local uci       = require("luci.model.uci").cursor()
   6 local util      = require("luci.util")
   7 local date      = require("luci.http.protocol.date")
   8 local res_input = "/usr/share/dnscrypt-proxy/dnscrypt-resolvers.csv"
   9 local res_dir   = fs.dirname(res_input)
  10 local dump      = util.ubus("network.interface", "dump", {})
  11 local plug_cnt  = tonumber(luci.sys.exec("env -i /usr/sbin/dnscrypt-proxy --version | grep 'Support for plugins: present' | wc -l"))
  12 local res_list  = {}
  13 local url       = "https://raw.githubusercontent.com/dyne/dnscrypt-proxy/master/dnscrypt-resolvers.csv"
  14
  15 if not fs.access(res_input) then
  16         if not fs.access("/lib/libustream-ssl.so") then
  17                 m = SimpleForm("error", nil, translate("No default resolver list and no SSL support available.<br />")
  18                         .. translate("Please install a resolver list to '/usr/share/dnscrypt-proxy/dnscrypt-resolvers.csv' to use this package."))
  19                 m.submit = false
  20                 m.reset = false
  21                 return m
  22         else
  23                 luci.sys.call("env -i /bin/uclient-fetch --no-check-certificate -O " .. res_input .. " " .. url .. " >/dev/null 2>&1")
  24         end
  25 end
  26
  27 if not uci:get_first("dnscrypt-proxy", "global") then
  28         uci:add("dnscrypt-proxy", "global")
  29         uci:save("dnscrypt-proxy")
  30         uci:commit("dnscrypt-proxy")
  31 end
  32
  33 if fs.access(res_input) then
  34         for line in io.lines(res_input) or {} do
  35                 local name,
  36                 location,
  37                 dnssec,
  38                 nolog = line:match("^([^,]+),.-,\".-\",\"*(.-)\"*,.-,[0-9],\"*([yesno]+)\"*,\"*([yesno]+)\"*,.*")
  39                 if name ~= "" and name ~= "Name" then
  40                         if location == "" then
  41                                 location = "-"
  42                         end
  43                         if dnssec == "" then
  44                                 dnssec = "-"
  45                         end
  46                         if nolog == "" then
  47                                 nolog = "-"
  48                         end
  49                         res_list[#res_list + 1] = { name = name, location = location, dnssec = dnssec, nolog = nolog }
  50                 end
  51         end
  52 end
  53
  54 m = Map("dnscrypt-proxy", translate("DNSCrypt-Proxy"),
  55         translate("Configuration of the DNSCrypt-Proxy package. ")
  56         .. translatef("For further information "
  57         .. "<a href=\"%s\" target=\"_blank\">"
  58         .. "see the wiki online</a>", "https://wiki.openwrt.org/inbox/dnscrypt"))
  59 m:chain("dhcp")
  60
  61 function m.on_after_commit(self)
  62         function d1.validate(self, value, s1)
  63                 if value == "1" then
  64                         uci:commit("dnscrypt-proxy")
  65                         uci:set("dhcp", s1, "noresolv", 1)
  66                         if not fs.access("/etc/resolv-crypt.conf") or fs.stat("/etc/resolv-crypt.conf").size == 0 then
  67                                 uci:set("dhcp", s1, "resolvfile", "/tmp/resolv.conf.auto")
  68                         else
  69                                 uci:set("dhcp", s1, "resolvfile", "/etc/resolv-crypt.conf")
  70                         end
  71                         local server_list = {}
  72                         local cnt = 1
  73                         uci:foreach("dnscrypt-proxy", "dnscrypt-proxy", function(s)
  74                                 server_list[cnt] = s['address'] .. "#" .. s['port']
  75                                 cnt = cnt + 1
  76                         end)
  77                         server_list[cnt] = "/pool.ntp.org/8.8.8.8"
  78                         uci:set_list("dhcp", s1, "server", server_list)
  79                         if cnt > 2 then
  80                                 uci:set("dhcp", s1, "allservers", 1)
  81                         else
  82                                 uci:set("dhcp", s1, "allservers", 0)
  83                         end
  84                         uci:save("dhcp")
  85                         uci:commit("dhcp")
  86                 end
  87                 return value
  88         end
  89         luci.sys.call("env -i /etc/init.d/dnscrypt-proxy restart >/dev/null 2>&1")
  90         luci.sys.call("env -i /etc/init.d/dnsmasq restart >/dev/null 2>&1")
  91 end
  92
  93 s = m:section(TypedSection, "global", translate("General Options"))
  94 s.anonymous = true
  95
  96 -- Main dnscrypt-proxy resource list
  97
  98 o1 = s:option(DummyValue, "", translate("Default Resolver List"))
  99 o1.template = "dnscrypt-proxy/res_options"
 100 o1.value = res_input
 101
 102 o2 = s:option(DummyValue, "", translate("File Date"))
 103 o2.template = "dnscrypt-proxy/res_options"
 104 if fs.access(res_input) then
 105         o2.value = date.to_http(fs.stat(res_input).mtime)
 106 else
 107         o2.value = "-"
 108 end
 109
 110 o3 = s:option(DummyValue, "", translate("File Checksum"))
 111 o3.template = "dnscrypt-proxy/res_options"
 112 if fs.access(res_input) then
 113         o3.value = luci.sys.exec("sha256sum " .. res_input .. " | awk '{print $1}'")
 114 else
 115         o3.value = "-"
 116 end
 117
 118 if fs.access("/lib/libustream-ssl.so") then
 119         btn1 = s:option(Button, "", translate("Refresh Resolver List"),
 120                 translate("Download the current resolver list from 'github.com/dyne/dnscrypt-proxy'."))
 121         btn1.inputtitle = translate("Refresh List")
 122         btn1.inputstyle = "apply"
 123         btn1.disabled = false
 124         function btn1.write()
 125                 if not fs.access(res_dir) then
 126                         fs.mkdir(res_dir)
 127                 end
 128                 luci.sys.call("env -i /bin/uclient-fetch --no-check-certificate -O " .. res_input .. " " .. url .. " >/dev/null 2>&1")
 129                 luci.http.redirect(luci.dispatcher.build_url("admin", "services", "dnscrypt-proxy"))
 130         end
 131 else
 132         btn1 = s:option(Button, "", translate("Refresh Resolver List"),
 133                 translate("No SSL support available.<br />")
 134                 .. translate("Please install a 'libustream-ssl' library to download the current resolver list from 'github.com/dyne/dnscrypt-proxy'."))
 135         btn1.inputtitle = translate("-------")
 136         btn1.inputstyle = "button"
 137         btn1.disabled = true
 138 end
 139
 140 if not fs.access("/etc/resolv-crypt.conf") or fs.stat("/etc/resolv-crypt.conf").size == 0 then
 141         btn2 = s:option(Button, "", translate("Create Custom Config File"),
 142                 translate("Create '/etc/resolv-crypt.conf' with 'options timeout:1' to reduce DNS upstream timeouts with multiple DNSCrypt instances.<br />")
 143                 .. translatef("For further information "
 144                 .. "<a href=\"%s\" target=\"_blank\">"
 145                 .. "see the wiki online</a>", "https://wiki.openwrt.org/inbox/dnscrypt"))
 146         btn2.inputtitle = translate("Create Config File")
 147         btn2.inputstyle = "apply"
 148         btn2.disabled = false
 149         function btn2.write()
 150                 luci.sys.call("env -i echo 'options timeout:1' > '/etc/resolv-crypt.conf'")
 151                 luci.http.redirect(luci.dispatcher.build_url("admin", "services", "dnscrypt-proxy"))
 152         end
 153 else
 154         btn2 = s:option(Button, "", translate("Create Custom Config File"),
 155                 translate("The config file '/etc/resolv-crypt.conf' already exist.<br />")
 156                 .. translate("Please edit the file manually in the 'Advanced' section."))
 157         btn2.inputtitle = translate("-------")
 158         btn2.inputstyle = "button"
 159         btn2.disabled = true
 160 end
 161
 162 -- Trigger settings
 163
 164 t = s:option(ListValue, "procd_trigger", translate("Startup Trigger"),
 165         translate("By default the DNSCrypt-Proxy startup will be triggered by ifup events of 'All' available network interfaces.<br />")
 166         .. translate("To restrict the trigger, select only the relevant network interface. Usually the 'wan' interface should work for most users."))
 167 t:value("", "All")
 168 if dump then
 169         local i, v
 170         for i, v in ipairs(dump.interface) do
 171                 if v.interface ~= "loopback" then
 172                         t:value(v.interface)
 173                 end
 174         end
 175 end
 176 t.default = procd_trigger or "All"
 177 t.rmempty = true
 178
 179 -- Mandatory options per instance
 180
 181 s = m:section(TypedSection, "dnscrypt-proxy", translate("Instance Options"))
 182 s.anonymous = true
 183 s.addremove = true
 184
 185 i1 = s:option(Value, "address", translate("IP Address"),
 186         translate("The local IPv4 or IPv6 address. The latter one should be specified within brackets, e.g. '[::1]'."))
 187 i1.default = address or "127.0.0.1"
 188 i1.rmempty = false
 189
 190 i2 = s:option(Value, "port", translate("Port"),
 191         translate("The listening port for DNS queries."))
 192 i2.datatype = "port"
 193 i2.default = port
 194 i2.rmempty = false
 195
 196 i3 = s:option(ListValue, "resolver", translate("Resolver (LOC/SEC/NOLOG)"),
 197         translate("Name of the remote DNS service for resolving queries incl. Location, DNSSEC- and NOLOG-Flag."))
 198 i3.datatype = "hostname"
 199 i3.widget = "select"
 200 local i, v
 201 for i, v in ipairs(res_list) do
 202         if v.name then
 203                 i3:value(v.name, v.name .. " (" .. v.location .. "/" .. v.dnssec .. "/" .. v.nolog .. ")")
 204         end
 205 end
 206 i3.default = resolver
 207 i3.rmempty = false
 208
 209 -- Extra options per instance
 210
 211 e1 = s:option(Value, "resolvers_list", translate("Alternate Resolver List"),
 212         translate("Specify a non-default Resolver List."))
 213 e1.datatype = "file"
 214 e1.optional = true
 215
 216 e2 = s:option(Value, "ephemeral_keys", translate("Ephemeral Keys"),
 217         translate("Improve privacy by using an ephemeral public key for each query. ")
 218         .. translate("This option requires extra CPU cycles and is useless with most DNSCrypt server."))
 219 e2.datatype = "bool"
 220 e2.value = 1
 221 e2.optional = true
 222
 223 if plug_cnt > 0 then
 224         e3 = s:option(DynamicList, "blacklist", translate("Blacklist"),
 225                 translate("Local blacklists allow you to block abuse sites by domains or ip addresses. ")
 226                 .. translate("The value for this property is the blocklist type and path to the file, e.g.'domains:/path/to/dbl.txt' or 'ips:/path/to/ipbl.txt'."))
 227         e3.optional = true
 228
 229         e4 = s:option(Value, "block_ipv6", translate("Block IPv6"),
 230                 translate("Disable IPv6 to speed up DNSCrypt-Proxy."))
 231         e4.datatype = "bool"
 232         e4.value = 1
 233         e4.optional = true
 234
 235         e5 = s:option(Value, "local_cache", translate("Local Cache"),
 236                 translate("Enable Caching to speed up DNSCcrypt-Proxy."))
 237         e5.datatype = "bool"
 238         e5.value = 1
 239         e5.optional = true
 240
 241         e6 = s:option(Value, "query_log_file", translate("DNS Query Logfile"),
 242         translate("Log the received DNS queries to a file, so you can watch in real-time what is happening on the network."))
 243         e6.optional = true
 244 end
 245
 246 -- Dnsmasq options
 247
 248 m1 = Map("dhcp")
 249
 250 s1 = m1:section(TypedSection, "dnsmasq", translate("Dnsmasq Options"))
 251 s1.anonymous = true
 252
 253 d1 = s1:option(Flag, "", translate("Transfer Options To Dnsmasq"),
 254         translate("Apply DNSCrypt-Proxy specific settings to the Dnsmasq configuration.<br />")
 255         .. translate("Please note: This may change the values for 'noresolv', 'resolvfile', 'allservers' and the list 'server' settings."))
 256 d1.default = d1.enabled
 257 d1.rmempty = false
 258
 259 return m, m1