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local sys = require "luci.sys"
local util = require "luci.util"
local fs = require "nixio.fs"
local dispatcher = require "luci.dispatcher"
local i18n = require "luci.i18n"
local uci = require("luci.model.uci").cursor()
local packageName = "https-dns-proxy"
local readmeURL = "https://docs.openwrt.melmac.net/" .. packageName .. "/"
local providers_dir = "/usr/lib/lua/luci/" .. packageName .. "/providers/"
local helperText = ""
local http2Supported = false
function getPackageVersion()
local opkgFile = "/usr/lib/opkg/status"
local line
local flag = false
for line in io.lines(opkgFile) do
if flag then
return line:match('[%d%.$-]+') or ""
elseif line:find("Package: " .. packageName:gsub("%-", "%%%-")) then
flag = true
end
end
return ""
end
function createHelperText()
local initText = translate("For more information on different options check") .. " "
for filename in fs.dir(providers_dir) do
local p_func = loadfile(providers_dir .. filename)
setfenv(p_func, { _ = i18n.translate })
local p = p_func()
if p.help_link and (not p.http2_only or http2Supported) then
local url, domain
url = p.help_link
domain = p.help_link_text or url:match('^%w+://([^/]+)')
if not helperText:find(domain) then
if helperText == "" then
helperText = initText
else
helperText = helperText .. ", "
end
helperText = helperText .. [[<a href="]] .. url .. [[" target="_blank">]] .. domain .. [[</a>]]
end
end
end
if helperText ~= "" then
local a = helperText:gsub('(.*),%s.*$', '%1')
helperText = a .. " " .. translate("and") .. helperText:sub(#a + 2) .. "."
end
end
function getProviderName(value)
for filename in fs.dir(providers_dir) do
local p_func = loadfile(providers_dir .. filename)
setfenv(p_func, { _ = i18n.translate })
local p = p_func()
value = value:gsub('[%p%c%s]', '')
p.url_match = p.resolver_url:gsub('[%p%c%s]', '')
if value:match(p.url_match) then
return p.label
end
end
return translate("Unknown Provider")
end
local packageStatus, packageStatusCode
local ubusStatus = util.ubus("service", "list", { name = packageName })
local packageVersion = getPackageVersion()
if packageVersion == "" then
packageStatusCode, packageStatus = -1, translatef("%s is not installed or not found", packageName)
else
packageStatusCode, packageStatus = 1, ""
for n = 1,20 do
if ubusStatus and ubusStatus[packageName] and
ubusStatus[packageName]["instances"] and
ubusStatus[packageName]["instances"]["instance" .. n] and
ubusStatus[packageName]["instances"]["instance" .. n]["running"] then
local value, k, v, url, url_flag, la, la_flag, lp, lp_flag
for k, v in pairs(ubusStatus[packageName]["instances"]["instance" .. n]["command"]) do
if la_flag then la, la_flag = v, false end
if lp_flag then lp, lp_flag = v, false end
if url_flag then url, url_flag = v, false end
if v == "-a" then la_flag = true end
if v == "-p" then lp_flag = true end
if v == "-r" then url_flag = true end
end
la = la or "127.0.0.1"
lp = lp or n + 5053
packageStatus = packageStatus .. translatef("%s DoH at %s:%s", getProviderName(url), la, lp) .. "\n"
else
break
end
end
if packageStatus == "" then
packageStatusCode = 0
packageStatus = translate("Stopped")
if not sys.init.enabled(packageName) then
packageStatus = packageStatus .. " (" .. translate("disabled") .. ")"
end
end
end
if sys.call("curl --version | grep -q HTTP2") == 0 then
http2Supported = true
end
m = Map("https-dns-proxy", translate("DNS HTTPS Proxy Settings"))
h = m:section(TypedSection, "_dummy", translatef("Service Status [%s %s]", packageName, packageVersion))
h.template = "cbi/nullsection"
ss = h:option(DummyValue, "_dummy", translate("Service Status"))
ss.template = packageName .. "/status"
ss.value = packageStatus
if packageStatusCode ~= -1 then
buttons = h:option(DummyValue, "_dummy", translate("Service Control"))
buttons.template = packageName .. "/buttons"
end
c = m:section(NamedSection, "config", "https-dns-proxy", translate("Configuration"))
d1 = c:option(ListValue, "update_dnsmasq_config", translate("Update DNSMASQ Config on Start/Stop"), translatef("If update option is selected, the 'DNS forwardings' section of %sDHCP and DNS%s will be automatically updated to use selected DoH providers (%smore information%s).", "<a href=\"" .. dispatcher.build_url("admin/network/dhcp") .. "\">", "</a>", "<a href=\"" .. readmeURL .. "#default-settings" .. "\" target=\"_blank\">", "</a>"))
d1:value('*', translate("Update all configs"))
local dnsmasq_num = 0
uci:foreach("dhcp", "dnsmasq", function(s)
d1:value(tostring(dnsmasq_num), translatef("Update %s config", "dhcp.@dnsmasq[" .. tostring(dnsmasq_num) .. "]"))
dnsmasq_num = dnsmasq_num + 1
end)
d1:value('-', translate("Do not update configs"))
d1.default = '*'
f1 = c:option(ListValue, "force_dns", translate("Force Router DNS"), translate("Forces Router DNS use on local devices, also known as DNS Hijacking."))
f1:value("0", translate("Let local devices use their own DNS servers if set"))
f1:value("1", translate("Force Router DNS server to all local devices"))
f1.default = '1'
createHelperText()
s3 = m:section(TypedSection, "https-dns-proxy", translate("Instances"),
helperText)
s3.template = "cbi/tblsection"
s3.sortable = false
s3.anonymous = true
s3.addremove = true
prov = s3:option(ListValue, "resolver_url", translate("Resolver"))
for filename in fs.dir(providers_dir) do
local p_func = loadfile(providers_dir .. filename)
setfenv(p_func, { _ = i18n.translate })
local p = p_func()
if not p.http2_only or http2Supported then
prov:value(p.resolver_url, p.label)
end
if p.default then
prov.default = p.resolver_url
end
end
prov.forcewrite = true
prov.write = function(self, section, value)
if not value then return end
for filename in fs.dir(providers_dir) do
local p_func = loadfile(providers_dir .. filename)
setfenv(p_func, { _ = i18n.translate })
local p = p_func()
value = value:gsub('[%p%c%s]', '')
p.url_match = p.resolver_url:gsub('[%p%c%s]', '')
if value:match(p.url_match) then
if p.bootstrap_dns then
uci:set(packageName, section, "bootstrap_dns", p.bootstrap_dns)
end
if p.resolver_url then
uci:set(packageName, section, "resolver_url", p.resolver_url)
end
end
end
uci:save(packageName)
end
la = s3:option(Value, "listen_addr", translate("Listen Address"))
la.datatype = "host"
la.placeholder = "127.0.0.1"
la.rmempty = true
local n = 0
uci:foreach(packageName, packageName, function(s)
if s[".name"] == section then
return false
end
n = n + 1
end)
lp = s3:option(Value, "listen_port", translate("Listen Port"))
lp.datatype = "port"
lp.value = n + 5053
dscp = s3:option(Value, "dscp_codepoint", translate("DSCP Codepoint"))
dscp.datatype = "range(0,63)"
dscp.rmempty = true
ps = s3:option(Value, "proxy_server", translate("Proxy Server"))
ps.rmempty = true
return m
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