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-- Copyright 2017 Yousong Zhou <yszhou4tech@gmail.com>
-- Licensed to the public under the Apache License 2.0.
local _up = getfenv(3)
local ut = require("luci.util")
local sys = require("luci.sys")
local ds = require("luci.dispatcher")
local nw = require("luci.model.network")
nw.init()
module("luci.model.shadowsocks-libev", function(m)
setmetatable(m, {__index=function (self, k)
local tb = _up
return rawget(self, k) or _up[k]
end})
end)
function values_actions(o)
o:value("bypass")
o:value("forward")
if o.option ~= "dst_default" then
o:value("checkdst")
end
end
function values_redir(o, xmode)
o.map.uci:foreach("shadowsocks-libev", "ss_redir", function(sdata)
local disabled = ucival_to_bool(sdata["disabled"])
local sname = sdata[".name"]
local mode = sdata["mode"] or "tcp_only"
if not disabled and mode:find(xmode) then
local desc = "%s - %s" % {sname, mode}
o:value(sname, desc)
end
end)
o:value("", "<unset>")
o.default = ""
end
function values_serverlist(o)
o.map.uci:foreach("shadowsocks-libev", "server", function(sdata)
local sname = sdata[".name"]
local server = sdata["server"]
local server_port = sdata["server_port"]
if server and server_port then
local disabled = ucival_to_bool(sdata[".disabled"]) and " - disabled" or ""
local desc = "%s - %s:%s%s" % {sname, server, server_port, disabled}
o:value(sname, desc)
end
end)
end
function values_ipaddr(o)
for _, v in ipairs(nw:get_interfaces()) do
for _, a in ipairs(v:ipaddrs()) do
o:value(a:host():string(), '%s (%s)' %{ a:host(), v:shortname() })
end
end
end
function values_ifnames(o)
for _, v in ipairs(sys.net.devices()) do
o:value(v)
end
end
function options_client(s, tab)
local o
o = s:taboption(tab, ListValue, "server", translate("Remote server"))
values_serverlist(o)
o = s:taboption(tab, Value, "local_address", translate("Local address"))
o.datatype = "ipaddr"
o.placeholder = "0.0.0.0"
values_ipaddr(o)
o = s:taboption(tab, Value, "local_port", translate("Local port"))
o.datatype = "port"
end
function options_server(s, tab)
local o
local optfunc
if tab == nil then
optfunc = function(...) return s:option(...) end
else
optfunc = function(...) return s:taboption(tab, ...) end
end
o = optfunc(Value, "server", translate("Server"))
o.datatype = "host"
o.size = 16
o = optfunc(Value, "server_port", translate("Server port"))
o.datatype = "port"
o.size = 5
o = optfunc(ListValue, "method", translate("Method"))
for _, m in ipairs(methods) do
o:value(m)
end
o = optfunc(Value, "key", translate("Key (base64)"))
o.datatype = "base64"
o.password = true
o.size = 12
o = optfunc(Value, "password", translate("Password"))
o.password = true
o.size = 12
end
function options_common(s, tab)
local o
o = s:taboption(tab, ListValue, "mode", translate("Mode of operation"))
for _, m in ipairs(modes) do
o:value(m)
end
o.default = "tcp_and_udp"
o = s:taboption(tab, Value, "mtu", translate("MTU"))
o.datatype = "uinteger"
o = s:taboption(tab, Value, "timeout", translate("Timeout (sec)"))
o.datatype = "uinteger"
s:taboption(tab, Value, "plugin", translate("Plugin"))
s:taboption(tab, Value, "plugin_opts", translate("Plugin Options"))
s:taboption(tab, Value, "user", translate("Run as"))
s:taboption(tab, Flag, "verbose", translate("Verbose"))
s:taboption(tab, Flag, "ipv6_first", translate("IPv6 First"), translate("Prefer IPv6 addresses when resolving names"))
s:taboption(tab, Flag, "fast_open", translate("Enable TCP Fast Open"))
s:taboption(tab, Flag, "no_delay", translate("Enable TCP_NODELAY"))
s:taboption(tab, Flag, "reuse_port", translate("Enable SO_REUSEPORT"))
end
function ucival_to_bool(val)
return val == "true" or val == "1" or val == "yes" or val == "on"
end
function cfgvalue_overview(sdata)
local stype = sdata[".type"]
local lines = {}
if stype == "ss_server" then
cfgvalue_overview_(sdata, lines, names_options_server)
cfgvalue_overview_(sdata, lines, names_options_common)
cfgvalue_overview_(sdata, lines, {
"bind_address",
})
elseif stype == "ss_local" or stype == "ss_redir" or stype == "ss_tunnel" then
cfgvalue_overview_(sdata, lines, names_options_client)
if stype == "ss_tunnel" then
cfgvalue_overview_(sdata, lines, {"tunnel_address"})
end
cfgvalue_overview_(sdata, lines, names_options_common)
else
return nil, nil
end
local sname = sdata[".name"]
local key = "%s.%s" % {stype, sname}
local value = {
[".name"] = sname,
name = '%s.<var>%s</var>' % {stype, sname},
overview = table.concat(lines, "<br />"),
disabled = ucival_to_bool(sdata["disabled"]),
}
return key, value
end
function cfgvalue_overview_(sdata, lines, names)
local line
for _, n in ipairs(names) do
local v = sdata[n]
if v ~= nil then
if n == "key" or n == "password" then
v = translate("<hidden>")
end
local fv = "<var>%s</var>" % ut.pcdata(v)
if sdata[".type"] ~= "ss_server" and n == "server" then
fv = '<a class="label" href="%s">%s</a>' % {
ds.build_url("admin/services/shadowsocks-libev/servers", v), fv}
end
line = n .. ": " .. fv
table.insert(lines, line)
end
end
end
function option_install_package(s, tab)
local bin = s.sectiontype:gsub("_", "-", 1)
local installed = nixio.fs.access("/usr/bin/" .. bin)
if installed then
return
end
local opkg_package = "shadowsocks-libev-" .. bin
local p_install
if tab then
p_install = s:taboption(tab, Button, "_install")
else
p_install = s:option(Button, "_install")
end
p_install.title = translate("Package is not installed")
p_install.inputtitle = translate("Install package %q" % opkg_package)
p_install.inputstyle = "apply"
function p_install.write()
return luci.http.redirect(
luci.dispatcher.build_url("admin/system/opkg") ..
"?query=%s" % opkg_package
)
end
end
names_options_server = {
"server",
"server_port",
"method",
"key",
"password",
}
names_options_client = {
"server",
"local_address",
"local_port",
}
names_options_common = {
"verbose",
"ipv6_first",
"fast_open",
"no_delay",
"reuse_port",
"mode",
"mtu",
"timeout",
"plugin",
"plugin_opts",
"user",
}
modes = {
"tcp_only",
"tcp_and_udp",
"udp_only",
}
methods = {
-- aead
"aes-128-gcm",
"aes-192-gcm",
"aes-256-gcm",
"chacha20-ietf-poly1305",
"xchacha20-ietf-poly1305",
-- stream
"table",
"rc4",
"rc4-md5",
"aes-128-cfb",
"aes-192-cfb",
"aes-256-cfb",
"aes-128-ctr",
"aes-192-ctr",
"aes-256-ctr",
"bf-cfb",
"camellia-128-cfb",
"camellia-192-cfb",
"camellia-256-cfb",
"salsa20",
"chacha20",
"chacha20-ietf",
}
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