Merge pull request #1242 from yousong/shadowsocks-libev

luci-app-shadowsocks-libev: rewrite for shadowsocks-libev 3.0.6-2

13 files changed, 561 insertions, 581 deletions

diff --git a/applications/luci-app-shadowsocks-libev/Makefile b/applications/luci-app-shadowsocks-libev/Makefile
index 848a5c8317..d0923e07a4 100644
--- a/applications/luci-app-shadowsocks-libev/Makefile
+++ b/applications/luci-app-shadowsocks-libev/Makefile
@@ -1,14 +1,16 @@
 #
-# Copyright (C) 2008-2014 The LuCI Team <luci@lists.subsignal.org>
+# Copyright (C) 2017 Yousong Zhou <yszhou4tech@gmail.com>
 #
 # This is free software, licensed under the Apache License, Version 2.0 .
 #
 
 include $(TOPDIR)/rules.mk
 
-LUCI_TITLE:=LuCI Support for Shadowsocks-libev
+LUCI_TITLE:=LuCI Support for shadowsocks-libev
 LUCI_DEPENDS:=
 
+PKG_LICENSE:=Apache-2.0
+
 include ../../luci.mk
 
 # call BuildPackage - OpenWrt buildroot signature
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/controller/shadowsocks-libev.lua b/applications/luci-app-shadowsocks-libev/luasrc/controller/shadowsocks-libev.lua
index ae968168f1..e191e59bb1 100644
--- a/applications/luci-app-shadowsocks-libev/luasrc/controller/shadowsocks-libev.lua
+++ b/applications/luci-app-shadowsocks-libev/luasrc/controller/shadowsocks-libev.lua
@@ -1,12 +1,22 @@
--- Copyright 2015 Jian Chang <aa65535@live.com>
+-- Copyright 2017 Yousong Zhou <yszhou4tech@gmail.com>
 -- Licensed to the public under the Apache License 2.0.
-
+--
 module("luci.controller.shadowsocks-libev", package.seeall)
 
 function index()
-	if not nixio.fs.access("/etc/config/shadowsocks-libev") then
-		return
-	end
+	entry({"admin", "services", "shadowsocks-libev"},
+		alias("admin", "services", "shadowsocks-libev", "instances"),
+		_("Shadowsocks-libev"), 59)
+
+	entry({"admin", "services", "shadowsocks-libev", "instances"},
+		arcombine(cbi("shadowsocks-libev/instances"), cbi("shadowsocks-libev/instance-details")),
+		_("Local Instances"), 10).leaf = true
+
+	entry({"admin", "services", "shadowsocks-libev", "servers"},
+		cbi("shadowsocks-libev/servers"),
+		_("Remote Servers"), 20).leaf = true
 
-	entry({"admin", "services", "shadowsocks-libev"}, cbi("shadowsocks-libev"), _("ShadowSocks-libev"), 74).dependent = true
+	entry({"admin", "services", "shadowsocks-libev", "rules"},
+		cbi("shadowsocks-libev/rules"),
+		_("Redir Rules"), 30).leaf = true
 end
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev.lua b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev.lua
deleted file mode 100644
index 97ce83f771..0000000000
--- a/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev.lua
+++ /dev/null
@@ -1,157 +0,0 @@
--- Copyright 2015 Jian Chang <aa65535@live.com>
--- Licensed to the public under the Apache License 2.0.
-
-local m, s, o, e, a
-
-if luci.sys.call("pidof ss-redir >/dev/null") == 0 then
-	m = Map("shadowsocks-libev", translate("ShadowSocks-libev"), translate("ShadowSocks-libev is running"))
-else
-	m = Map("shadowsocks-libev", translate("ShadowSocks-libev"), translate("ShadowSocks-libev is not running"))
-end
-
-e = {
-	"table",
-	"rc4",
-	"rc4-md5",
-	"aes-128-cfb",
-	"aes-192-cfb",
-	"aes-256-cfb",
-	"bf-cfb",
-	"camellia-128-cfb",
-	"camellia-192-cfb",
-	"camellia-256-cfb",
-	"cast5-cfb",
-	"des-cfb",
-	"idea-cfb",
-	"rc2-cfb",
-	"seed-cfb",
-	"salsa20",
-	"chacha20",
-}
-
--- Global Setting
-s = m:section(TypedSection, "shadowsocks-libev", translate("Global Setting"))
-s.anonymous = true
-
-o = s:option(Flag, "enable", translate("Enable"))
-o.default = 1
-o.rmempty = false
-
-o = s:option(Value, "server", translate("Server Address"))
-o.datatype = "ipaddr"
-o.rmempty = false
-
-o = s:option(Value, "server_port", translate("Server Port"))
-o.datatype = "port"
-o.rmempty = false
-
-o = s:option(Value, "local_port", translate("Local Port"))
-o.datatype = "port"
-o.default = 1080
-o.rmempty = false
-
-o = s:option(Value, "timeout", translate("Connection Timeout"))
-o.datatype = "uinteger"
-o.default = 60
-o.rmempty = false
-
-o = s:option(Value, "password", translate("Password"))
-o.password = true
-o.rmempty = false
-
-o = s:option(ListValue, "encrypt_method", translate("Encrypt Method"))
-for i,v in ipairs(e) do
-	o:value(v)
-end
-o.rmempty = false
-
-o = s:option(Value, "ignore_list", translate("Ignore List"))
-o:value("/dev/null", translate("Disabled"))
-o.default = "/dev/null"
-o.rmempty = false
-
--- UDP Relay
-s = m:section(TypedSection, "shadowsocks-libev", translate("UDP Relay"))
-s.anonymous = true
-
-o = s:option(ListValue, "udp_mode", translate("Relay Mode"))
-o:value("0", translate("Disabled"))
-o:value("1", translate("Enabled"))
-o:value("2", translate("Custom"))
-o.default = 0
-o.rmempty = false
-
-o = s:option(Value, "udp_server", translate("Server Address"))
-o.datatype = "ipaddr"
-o:depends("udp_mode", 2)
-
-o = s:option(Value, "udp_server_port", translate("Server Port"))
-o.datatype = "port"
-o:depends("udp_mode", 2)
-
-o = s:option(Value, "udp_local_port", translate("Local Port"))
-o.datatype = "port"
-o.default = 1081
-o:depends("udp_mode", 2)
-
-o = s:option(Value, "udp_timeout", translate("Connection Timeout"))
-o.datatype = "uinteger"
-o.default = 60
-o:depends("udp_mode", 2)
-
-o = s:option(Value, "udp_password", translate("Password"))
-o.password = true
-o:depends("udp_mode", 2)
-
-o = s:option(ListValue, "udp_encrypt_method", translate("Encrypt Method"))
-for i,v in ipairs(e) do
-	o:value(v)
-end
-o:depends("udp_mode", 2)
-
--- UDP Forward
-s = m:section(TypedSection, "shadowsocks-libev", translate("UDP Forward"))
-s.anonymous = true
-
-o = s:option(Flag, "tunnel_enable", translate("Enable"))
-o.default = 1
-o.rmempty = false
-
-o = s:option(Value, "tunnel_port", translate("UDP Local Port"))
-o.datatype = "port"
-o.default = 5300
-
-o = s:option(Value, "tunnel_forward", translate("Forwarding Tunnel"))
-o.default = "8.8.4.4:53"
-
--- Access Control
-s = m:section(TypedSection, "shadowsocks-libev", translate("Access Control"))
-s.anonymous = true
-
-s:tab("lan_ac", translate("LAN"))
-
-o = s:taboption("lan_ac", ListValue, "lan_ac_mode", translate("Access Control"))
-o:value("0", translate("Disabled"))
-o:value("1", translate("Allow listed only"))
-o:value("2", translate("Allow all except listed"))
-o.default = 0
-o.rmempty = false
-
-o = s:taboption("lan_ac", DynamicList, "lan_ac_ip", translate("LAN IP List"))
-o.datatype = "ipaddr"
-
-luci.ip.neighbors({ family = 4 }, function(entry)
-	if entry.reachable then
-		o:value(entry.dest:string())
-	end
-end)
-
-s:tab("wan_ac", translate("WAN"))
-
-o = s:taboption("wan_ac", DynamicList, "wan_bp_ip", translate("Bypassed IP"))
-o.datatype = "ip4addr"
-
-o = s:taboption("wan_ac", DynamicList, "wan_fw_ip", translate("Forwarded IP"))
-o.datatype = "ip4addr"
-
-return m
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/instance-details.lua b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/instance-details.lua
new file mode 100644
index 0000000000..d9a61d0bf7
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/instance-details.lua
@@ -0,0 +1,49 @@
+-- Copyright 2017 Yousong Zhou <yszhou4tech@gmail.com>
+-- Licensed to the public under the Apache License 2.0.
+
+local ds = require "luci.dispatcher"
+local ss = require "luci.model.shadowsocks-libev"
+
+local sname = arg[1]
+local redirect_url = ds.build_url("admin/services/shadowsocks-libev/instances")
+local s, o
+
+local m = Map("shadowsocks-libev")
+local sdata = m:get(sname)
+if not sdata then
+	luci.http.redirect(redirect_url)
+	return
+end
+local stype = sdata[".type"]
+m.redirect = redirect_url
+m.title = "shadowsocks-libev - %s - %s" % {stype, sname}
+
+
+s = m:section(NamedSection, sname, stype)
+s:tab("general", translate("General Settings"))
+s:tab("advanced", translate("Advanced Settings"))
+s:taboption("general", Flag, "disabled", translate("Disable"))
+ss.option_install_package(s, "general")
+
+if stype == "ss_server" then
+	ss.options_server(s, "general")
+	o = s:taboption("general", Value, "bind_address",
+		translate("Bind address"),
+		translate("The address ss-server will initiate connection from"))
+	o.datatype = "ipaddr"
+	o.placeholder = "0.0.0.0"
+	ss.values_ipaddr(o)
+	o = s:taboption("general", Value, "manager_address", translate("Manager address"))
+	o.datatype = "hostport"
+else
+	ss.options_client(s, "general")
+	if stype == "ss_tunnel" then
+		o = s:taboption("general", Value, "tunnel_address",
+			translate("Tunnel address"),
+			translate("The address ss-tunnel will forward traffic to"))
+		o.datatype = "hostport"
+	end
+end
+ss.options_common(s, "advanced")
+
+return m
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/instances.lua b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/instances.lua
new file mode 100644
index 0000000000..15e57df6bd
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/instances.lua
@@ -0,0 +1,113 @@
+-- Copyright 2017 Yousong Zhou <yszhou4tech@gmail.com>
+-- Licensed to the public under the Apache License 2.0.
+
+local ds = require "luci.dispatcher"
+local ss = require "luci.model.shadowsocks-libev"
+local ut = require "luci.util"
+local m, s, o
+
+m = Map("shadowsocks-libev",
+	translate("Local Instances"),
+	translate("Instances of shadowsocks-libev components, e.g. ss-local, \
+			   ss-redir, ss-tunnel, ss-server, etc.  To enable an instance it \
+			   is required to enable both the instance itself and the remote \
+			   server it refers to."))
+
+local instances = {}
+local cfgtypes = { "ss_local", "ss_redir", "ss_server", "ss_tunnel" }
+local instances_data = ut.ubus("service", "list", {name = "shadowsocks-libev"})["shadowsocks-libev"]
+if instances_data ~= nil then
+	instances_data = instances_data["instances"]
+end
+
+for sname, sdata in pairs(m:get()) do
+	local key, value = ss.cfgvalue_overview(sdata)
+	if key ~= nil then
+		if instances_data and instances_data[key] and instances_data[key]["running"] then
+			value["running"] = "yes"
+		else
+			value["running"] = "no"
+		end
+		instances[key] = value
+	end
+end
+
+s = m:section(Table, instances)
+s.addremove = true
+s.template_addremove = "shadowsocks-libev/add_instance"
+s.extedit = function(self, section)
+	local value = instances[section]
+	if type(value) == "table" then
+		return ds.build_url(unpack(ds.context.requestpath),
+					"services/shadowsocks-libev/instances",
+					value[".name"])
+	end
+end
+s.parse = function(self, ...)
+	Table.parse(self, ...)
+
+	local crval = REMOVE_PREFIX .. self.config
+	local name = self.map:formvaluetable(crval)
+	for k,v in pairs(name) do
+		local value = instances[k]
+		local sname = value[".name"]
+		if type(value) == "table" then
+			m:del(sname)
+			instances[k] = nil
+			for _, oname in ipairs({"redir_tcp", "redir_udp"}) do
+				local ovalue = m:get("ss_rules", oname)
+				if ovalue == sname then
+					m:del("ss_rules", oname)
+				end
+			end
+		end
+	end
+
+	local stype = m:formvalue("_newinst.type")
+	local sname = m:formvalue("_newinst.name")
+	if ut.contains(cfgtypes, stype) then
+		local created
+		if sname and #sname > 0 then
+			created = m:set(sname, nil, stype)
+		else
+			created = m:add(stype)
+			sname = created
+		end
+		if created then
+			m.uci:save("shadowsocks-libev")
+			luci.http.redirect(ds.build_url(
+				"admin/services/shadowsocks-libev/instances", sname
+			))
+		end
+	end
+end
+
+o = s:option(DummyValue, "name", translate("Name"))
+o.rawhtml = true
+o = s:option(DummyValue, "overview", translate("Overview"))
+o.rawhtml = true
+
+s:option(DummyValue, "running", translate("Running"))
+
+o = s:option(Button, "disabled", translate("Enable/Disable"))
+o.render = function(self, section, scope)
+	if instances[section].disabled then
+		self.title = translate("Disabled")
+		self.inputstyle = "reset"
+	else
+		self.title = translate("Enabled")
+		self.inputstyle = "save"
+	end
+	Button.render(self, section, scope)
+end
+o.write = function(self, section)
+	local sdata = instances[section]
+	if type(sdata) == "table" then
+		local sname = sdata[".name"]
+		local disabled = not sdata["disabled"]
+		sdata["disabled"] = disabled
+		m:set(sname, "disabled", tostring(disabled))
+	end
+end
+
+return m
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/rules.lua b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/rules.lua
new file mode 100644
index 0000000000..fe5f9c31b8
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/rules.lua
@@ -0,0 +1,73 @@
+-- Copyright 2017 Yousong Zhou <yszhou4tech@gmail.com>
+-- Licensed to the public under the Apache License 2.0.
+
+local ss = require("luci.model.shadowsocks-libev")
+
+local m, s, o
+
+m = Map("shadowsocks-libev",
+	translate("Redir Rules"),
+	translate("On this page you can configure how traffics are to be \
+		forwarded to ss-redir instances. \
+		If enabled, packets will first have their source ip addresses checked \
+		against <em>Src ip bypass</em>, <em>Src ip forward</em>, \
+		<em>Src ip checkdst</em> and if none matches <em>Src default</em> \
+		will give the default action to be taken. \
+		If the prior check results in action <em>checkdst</em>, packets will continue \
+		to have their destination addresses checked."))
+
+
+s = m:section(NamedSection, "ss_rules", "ss-rules")
+s:tab("general", translate("General Settings"))
+s:tab("srcip", translate("Source Settings"))
+s:tab("dstip", translate("Destination Settings"))
+
+s:taboption('general', Flag, "disabled", translate("Disable"))
+ss.option_install_package(s, 'general')
+
+o = s:taboption('general', ListValue, "redir_tcp",
+	translate("ss-redir for TCP"))
+ss.values_redir(o, 'tcp')
+o = s:taboption('general', ListValue, "redir_udp",
+	translate("ss-redir for UDP"))
+ss.values_redir(o, 'udp')
+
+o = s:taboption('general', ListValue, "local_default",
+	translate("Local-out default"),
+	translate("Default action for locally generated packets"))
+ss.values_actions(o)
+s:taboption('general', Value, "ipt_args",
+	translate("Extra arguments"),
+	translate("Passes additional arguments to iptables. Use with care!"))
+
+s:taboption('srcip', DynamicList, "src_ips_bypass",
+	translate("Src ip bypass"),
+	translate("Bypass redir action for packets with source addresses in this list"))
+s:taboption('srcip', DynamicList, "src_ips_forward",
+	translate("Src ip forward"),
+	translate("Go through redir action for packets with source addresses in this list"))
+s:taboption('srcip', DynamicList, "src_ips_checkdst",
+	translate("Src ip checkdst"),
+	translate("Continue to have dst address checked for packets with source addresses in this list"))
+o = s:taboption('srcip', ListValue, "src_default",
+	translate("Src default"),
+	translate("Default action for packets whose source addresses do not match any of the source ip list"))
+ss.values_actions(o)
+
+s:taboption('dstip', DynamicList, "dst_ips_bypass",
+	translate("Dst ip bypass"),
+	translate("Bypass redir action for packets with destination addresses in this list"))
+s:taboption('dstip', DynamicList, "dst_ips_forward",
+	translate("Dst ip forward"),
+	translate("Go through redir action for packets with destination addresses in this list"))
+
+o = s:taboption('dstip', FileBrowser, "dst_ips_bypass_file",
+	translate("Dst ip bypass file"),
+	translate("File containing ip addresses for the purposes as with <em>Dst ip bypass</em>"))
+o.datatype = "file"
+s:taboption('dstip', FileBrowser, "dst_ips_forward_file",
+	translate("Dst ip forward file"),
+	translate("File containing ip addresses for the purposes as with <em>Dst ip forward</em>"))
+o.datatype = "file"
+
+return m
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/servers.lua b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/servers.lua
new file mode 100644
index 0000000000..71c66562e1
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/luasrc/model/cbi/shadowsocks-libev/servers.lua
@@ -0,0 +1,31 @@
+-- Copyright 2017 Yousong Zhou <yszhou4tech@gmail.com>
+-- Licensed to the public under the Apache License 2.0.
+
+local ds = require "luci.dispatcher"
+local ss = require("luci.model.shadowsocks-libev")
+
+local m, s
+
+m = Map("shadowsocks-libev",
+	translate("Remote Servers"),
+	translate("Definition of remote shadowsocks servers.  \
+			Disable any of them will also disable instances refering to it."))
+
+local sname = arg[1]
+if sname then
+	if not m:get(sname) then
+		luci.http.redirect(ds.build_url("admin/services/shadowsocks-libev/servers"))
+		return
+	end
+	s = m:section(NamedSection, sname, "server")
+	m.title = m.title .. ' - ' .. sname
+else
+	s = m:section(TypedSection, "server")
+	s.template = 'cbi/tblsection'
+	s.addremove = true
+end
+
+s:option(Flag, "disabled", translate("Disable"))
+ss.options_server(s)
+
+return m
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/model/shadowsocks-libev.lua b/applications/luci-app-shadowsocks-libev/luasrc/model/shadowsocks-libev.lua
new file mode 100644
index 0000000000..2753f458b5
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/luasrc/model/shadowsocks-libev.lua
@@ -0,0 +1,253 @@
+-- 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 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)
+	for _, a in ipairs(actions) do
+		o:value(a)
+	end
+end
+
+function values_redir(o, xmode)
+	o.map.uci.foreach("shadowsocks-libev", "ss_redir", function(sdata)
+		local sname = sdata[".name"]
+		local mode = sdata["mode"]
+		if mode and mode:find(xmode) then
+			local desc = "%s - %s" % {sname, mode}
+			o:value(sname, desc)
+		end
+	end)
+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 desc = "%s - %s:%s" % {sname, sdata["server"], sdata["server_port"]}
+			o:value(sname, desc)
+		end
+	end)
+end
+
+function values_ipaddr(o)
+	local keys, vals = {}, {}
+	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 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 encoding)"))
+	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, "user", translate("Run as"))
+
+	s:taboption(tab, Flag, "verbose", translate("Verbose"))
+	s:taboption(tab, Flag, "fast_open", translate("Enable TCP Fast Open"))
+	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",
+			"manager_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
+			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/packages") ..
+			"?submit=1&install=%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",
+	"fast_open",
+	"reuse_port",
+	"mode",
+	"mtu",
+	"timeout",
+	"user",
+}
+
+modes = {
+	"tcp_only",
+	"tcp_and_udp",
+	"udp_only",
+}
+
+actions = {
+	"bypass",
+	"forward",
+	"checkdst",
+}
+
+methods = {
+	-- aead
+	"aes-128-gcm",
+	"aes-192-gcm",
+	"aes-256-gcm",
+	-- 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",
+	"aes-128-gcm",
+	"aes-192-gcm",
+	"aes-256-gcm",
+}
diff --git a/applications/luci-app-shadowsocks-libev/luasrc/view/shadowsocks-libev/add_instance.htm b/applications/luci-app-shadowsocks-libev/luasrc/view/shadowsocks-libev/add_instance.htm
new file mode 100644
index 0000000000..67e1c4f72c
--- /dev/null
+++ b/applications/luci-app-shadowsocks-libev/luasrc/view/shadowsocks-libev/add_instance.htm
@@ -0,0 +1,22 @@
+<div class="cbi-section-create cbi-tblsection-create">
+	<br />
+	<table class="cbi-section-table">
+		<tr class="cbi-section-table-row">
+			<td class="cbi-section-table-cell" style="width:140px">
+				<select class="cbi-input-select" id="_newinst.type" name="_newinst.type">
+					<option value="_dummy">-- instance type --</option>
+					<option value="ss_local">ss-local</option>
+					<option value="ss_tunnel">ss-tunnel</option>
+					<option value="ss_redir">ss-redir</option>
+					<option value="ss_server">ss-server</option>
+				</select>
+			</td>
+			<td class="cbi-section-table-cell" style="width:110px">
+				<input type="text" class="cbi-input-text" id="_newinst.name" name="_newinst.name" placeholder="<%:Name%>"/>
+			</td>
+			<td class="cbi-section-table-cell left">
+				<input type="submit" class="cbi-button cbi-button-add" name="cbi.cts.<%=self.config%>" value="<%:Add%>" />
+			</td>
+		</tr>
+	</table>
+</div>
diff --git a/applications/luci-app-shadowsocks-libev/po/pt-br/shadowsocks-libev.po b/applications/luci-app-shadowsocks-libev/po/pt-br/shadowsocks-libev.po
deleted file mode 100644
index f2b18e374c..0000000000
--- a/applications/luci-app-shadowsocks-libev/po/pt-br/shadowsocks-libev.po
+++ /dev/null
@@ -1,97 +0,0 @@
-msgid ""
-msgstr ""
-"Content-Type: text/plain; charset=UTF-8\n"
-"Project-Id-Version: \n"
-"POT-Creation-Date: \n"
-"PO-Revision-Date: \n"
-"Language-Team: \n"
-"MIME-Version: 1.0\n"
-"Content-Transfer-Encoding: 8bit\n"
-"X-Generator: Poedit 1.8.11\n"
-"Last-Translator: Luiz Angelo Daros de Luca <luizluca@gmail.com>\n"
-"Plural-Forms: nplurals=2; plural=(n > 1);\n"
-"Language: pt_BR\n"
-
-msgid "Access Control"
-msgstr "Controle de Acesso"
-
-msgid "Allow all except listed"
-msgstr "Permitir todos, exceto os listados"
-
-msgid "Allow listed only"
-msgstr "Permitir somente os listados"
-
-msgid "Bypassed IP"
-msgstr "Endereços IP Ignorados"
-
-msgid "Connection Timeout"
-msgstr "Tempo limite de conexão"
-
-msgid "Custom"
-msgstr "Personalizado"
-
-msgid "Disabled"
-msgstr "Desabilitado"
-
-msgid "Enable"
-msgstr "Ativar"
-
-msgid "Enabled"
-msgstr "Ativado"
-
-msgid "Encrypt Method"
-msgstr "Método de Cifragem"
-
-msgid "Forwarded IP"
-msgstr "Endereço IP Encaminhado"
-
-msgid "Forwarding Tunnel"
-msgstr "Tunel para Encaminhamento"
-
-msgid "Global Setting"
-msgstr "Opções Globais"
-
-msgid "Ignore List"
-msgstr "Lista de Ignorados"
-
-msgid "LAN"
-msgstr "LAN"
-
-msgid "LAN IP List"
-msgstr "Lista de endereços IP da LAN"
-
-msgid "Local Port"
-msgstr "Porta Local"
-
-msgid "Password"
-msgstr "Senha"
-
-msgid "Relay Mode"
-msgstr "Modo de Retransmissor"
-
-msgid "Server Address"
-msgstr "Endereço do Servidor"
-
-msgid "Server Port"
-msgstr "Porta do servidor"
-
-msgid "ShadowSocks-libev"
-msgstr "ShadowSocks-libev"
-
-msgid "ShadowSocks-libev is not running"
-msgstr "O serviço ShadowSocks-libev está parado"
-
-msgid "ShadowSocks-libev is running"
-msgstr "O serviço ShadowSocks-libev está em execução."
-
-msgid "UDP Forward"
-msgstr "Encaminhamento UDP"
-
-msgid "UDP Local Port"
-msgstr "Porta Local UDP"
-
-msgid "UDP Relay"
-msgstr "Retransmissão UDP"
-
-msgid "WAN"
-msgstr "WAN"
diff --git a/applications/luci-app-shadowsocks-libev/po/sv/shadowsocks-libev.po b/applications/luci-app-shadowsocks-libev/po/sv/shadowsocks-libev.po
deleted file mode 100644
index b0cf6d3316..0000000000
--- a/applications/luci-app-shadowsocks-libev/po/sv/shadowsocks-libev.po
+++ /dev/null
@@ -1,136 +0,0 @@
-msgid ""
-msgstr ""
-"Content-Type: text/plain; charset=UTF-8\n"
-"Project-Id-Version: PACKAGE VERSION\n"
-"Last-Translator: Automatically generated\n"
-"Language-Team: none\n"
-"Language: sv\n"
-"MIME-Version: 1.0\n"
-"Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=(n != 1);\n"
-
-msgid "Access Control"
-msgstr ""
-
-msgid "Allow all except listed"
-msgstr ""
-
-msgid "Allow listed only"
-msgstr ""
-
-msgid "Bypassed IP"
-msgstr ""
-
-msgid "Connection Timeout"
-msgstr ""
-
-msgid "Custom"
-msgstr ""
-
-msgid "Disabled"
-msgstr ""
-
-msgid "Enable"
-msgstr ""
-
-msgid "Enabled"
-msgstr ""
-
-msgid "Encrypt Method"
-msgstr ""
-
-msgid "Forwarded IP"
-msgstr ""
-
-msgid "Forwarding Tunnel"
-msgstr ""
-
-msgid "Global Setting"
-msgstr ""
-
-msgid "Ignore List"
-msgstr ""
-
-msgid "LAN"
-msgstr ""
-
-msgid "LAN IP List"
-msgstr ""
-
-msgid "Local Port"
-msgstr ""
-
-msgid "Password"
-msgstr ""
-
-msgid "Relay Mode"
-msgstr ""
-
-msgid "Server Address"
-msgstr ""
-
-msgid "Server Port"
-msgstr ""
-
-msgid "ShadowSocks-libev"
-msgstr ""
-
-msgid "ShadowSocks-libev is not running"
-msgstr ""
-
-msgid "ShadowSocks-libev is running"
-msgstr ""
-
-msgid "UDP Forward"
-msgstr ""
-
-msgid "UDP Local Port"
-msgstr ""
-
-msgid "UDP Relay"
-msgstr ""
-
-msgid "WAN"
-msgstr ""
-
-#~ msgid "Broadcast on all interfaces"
-#~ msgstr "Sänd i alla gränssnitt"
-
-#~ msgid "Choose the host to wake up or enter a custom MAC address to use"
-#~ msgstr ""
-#~ "Välj värden som ska väckas upp eller fyll i en anpassad MAC-adress att "
-#~ "använda"
-
-#~ msgid "Host to wake up"
-#~ msgstr "Värd som ska väckas upp"
-
-#~ msgid "Network interface to use"
-#~ msgstr "Nätverksgränssnitt som ska användas"
-
-#~ msgid ""
-#~ "Sometimes only one of the two tools works. If one fails, try the other one"
-#~ msgstr ""
-#~ "Ibland så fungerar bara en av de två verktygen. Prova med den andra om "
-#~ "den första misslyckades"
-
-#~ msgid "Specifies the interface the WoL packet is sent on"
-#~ msgstr "Anger gränssnittet som fjärrstartspaketet skickas med"
-
-#~ msgid "Starting WoL utility:"
-#~ msgstr "Startar hjälpprogrammet för fjärrstyrning av uppstart:"
-
-#~ msgid "Wake on LAN"
-#~ msgstr "Fjärrstyrning av uppstart"
-
-#~ msgid ""
-#~ "Wake on LAN is a mechanism to remotely boot computers in the local "
-#~ "network."
-#~ msgstr ""
-#~ "Fjärrstyrning av uppstart är en mekanism för att starta upp datorer via "
-#~ "fjärrstyrning i det lokala nätverket."
-
-#~ msgid "Wake up host"
-#~ msgstr "Väck upp värden"
-
-#~ msgid "WoL program"
-#~ msgstr "Program för fjärrstart"
diff --git a/applications/luci-app-shadowsocks-libev/po/templates/shadowsocks-libev.pot b/applications/luci-app-shadowsocks-libev/po/templates/shadowsocks-libev.pot
deleted file mode 100644
index 81bbcb72f4..0000000000
--- a/applications/luci-app-shadowsocks-libev/po/templates/shadowsocks-libev.pot
+++ /dev/null
@@ -1,86 +0,0 @@
-msgid ""
-msgstr "Content-Type: text/plain; charset=UTF-8"
-
-msgid "Access Control"
-msgstr ""
-
-msgid "Allow all except listed"
-msgstr ""
-
-msgid "Allow listed only"
-msgstr ""
-
-msgid "Bypassed IP"
-msgstr ""
-
-msgid "Connection Timeout"
-msgstr ""
-
-msgid "Custom"
-msgstr ""
-
-msgid "Disabled"
-msgstr ""
-
-msgid "Enable"
-msgstr ""
-
-msgid "Enabled"
-msgstr ""
-
-msgid "Encrypt Method"
-msgstr ""
-
-msgid "Forwarded IP"
-msgstr ""
-
-msgid "Forwarding Tunnel"
-msgstr ""
-
-msgid "Global Setting"
-msgstr ""
-
-msgid "Ignore List"
-msgstr ""
-
-msgid "LAN"
-msgstr ""
-
-msgid "LAN IP List"
-msgstr ""
-
-msgid "Local Port"
-msgstr ""
-
-msgid "Password"
-msgstr ""
-
-msgid "Relay Mode"
-msgstr ""
-
-msgid "Server Address"
-msgstr ""
-
-msgid "Server Port"
-msgstr ""
-
-msgid "ShadowSocks-libev"
-msgstr ""
-
-msgid "ShadowSocks-libev is not running"
-msgstr ""
-
-msgid "ShadowSocks-libev is running"
-msgstr ""
-
-msgid "UDP Forward"
-msgstr ""
-
-msgid "UDP Local Port"
-msgstr ""
-
-msgid "UDP Relay"
-msgstr ""
-
-msgid "WAN"
-msgstr ""
diff --git a/applications/luci-app-shadowsocks-libev/po/zh-cn/shadowsocks-libev.po b/applications/luci-app-shadowsocks-libev/po/zh-cn/shadowsocks-libev.po
deleted file mode 100644
index f86eee7e9f..0000000000
--- a/applications/luci-app-shadowsocks-libev/po/zh-cn/shadowsocks-libev.po
+++ /dev/null
@@ -1,97 +0,0 @@
-msgid ""
-msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2014-11-12 14:12+0800\n"
-"PO-Revision-Date: 2015-07-02 14:26+0800\n"
-"Last-Translator: Jian Chang <aa65535@live.com>\n"
-"Language: zh_CN\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Pootle 2.0.6\n"
-
-msgid "Access Control"
-msgstr "访问控制"
-
-msgid "Allow all except listed"
-msgstr "仅允许列表外"
-
-msgid "Allow listed only"
-msgstr "仅允许列表内"
-
-msgid "Bypassed IP"
-msgstr "被忽略的IP"
-
-msgid "Connection Timeout"
-msgstr "连接超时"
-
-msgid "Custom"
-msgstr "自定义"
-
-msgid "Disabled"
-msgstr "已禁用"
-
-msgid "Enable"
-msgstr "启用"
-
-msgid "Enabled"
-msgstr "已启用"
-
-msgid "Encrypt Method"
-msgstr "加密方式"
-
-msgid "Forwarded IP"
-msgstr "走代理的IP"
-
-msgid "Forwarding Tunnel"
-msgstr "UDP转发地址"
-
-msgid "Global Setting"
-msgstr "全局设置"
-
-msgid "Ignore List"
-msgstr "忽略列表"
-
-msgid "LAN"
-msgstr ""
-
-msgid "LAN IP List"
-msgstr "内网IP列表"
-
-msgid "Local Port"
-msgstr "本地端口"
-
-msgid "Password"
-msgstr "密码"
-
-msgid "Relay Mode"
-msgstr "中继模式"
-
-msgid "Server Address"
-msgstr "服务器地址"
-
-msgid "Server Port"
-msgstr "服务器端口"
-
-msgid "ShadowSocks-libev"
-msgstr "ShadowSocks-libev"
-
-msgid "ShadowSocks-libev is not running"
-msgstr "ShadowSocks-libev 未运行"
-
-msgid "ShadowSocks-libev is running"
-msgstr "ShadowSocks-libev 运行中"
-
-msgid "UDP Forward"
-msgstr "UDP转发"
-
-msgid "UDP Local Port"
-msgstr "UDP本地端口"
-
-msgid "UDP Relay"
-msgstr "UDP中继"
-
-msgid "WAN"
-msgstr ""