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subscribe.lua
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subscribe.lua
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#!/usr/bin/lua
------------------------------------------------
-- This file is part of the luci-app-ssr-plus subscribe.lua
-- @author William Chan <root@williamchan.me>
------------------------------------------------
require "luci.model.uci"
require "nixio"
require "luci.util"
require "luci.sys"
require "luci.jsonc"
-- these global functions are accessed all the time by the event handler
-- so caching them is worth the effort
local tinsert = table.insert
local ssub, slen, schar, sbyte, sformat, sgsub = string.sub, string.len, string.char, string.byte, string.format, string.gsub
local jsonParse, jsonStringify = luci.jsonc.parse, luci.jsonc.stringify
local b64decode = nixio.bin.b64decode
local cache = {}
local nodeResult = setmetatable({}, { __index = cache }) -- update result
local name = 'shadowsocksr'
local uciType = 'servers'
local ucic = luci.model.uci.cursor()
local proxy = ucic:get_first(name, 'server_subscribe', 'proxy', '0')
local switch = ucic:get_first(name, 'server_subscribe', 'switch', '1')
local subscribe_url = ucic:get_first(name, 'server_subscribe', 'subscribe_url', {})
local filter_words = ucic:get_first(name, 'server_subscribe', 'filter_words', '过期时间/剩余流量')
local log = function(...)
print(os.date("%Y-%m-%d %H:%M:%S ") .. table.concat({ ... }, " "))
end
-- 分割字符串
local function split(full, sep)
full = full:gsub("%z", "") -- 这里不是很清楚 有时候结尾带个\0
local off, result = 1, {}
while true do
local nStart, nEnd = full:find(sep, off)
if not nEnd then
local res = ssub(full, off, slen(full))
if #res > 0 then -- 过滤掉 \0
tinsert(result, res)
end
break
else
tinsert(result, ssub(full, off, nStart - 1))
off = nEnd + 1
end
end
return result
end
-- urlencode
local function get_urlencode(c)
return sformat("%%%02X", sbyte(c))
end
local function urlEncode(szText)
local str = szText:gsub("([^0-9a-zA-Z ])", get_urlencode)
str = str:gsub(" ", "+")
return str
end
local function get_urldecode(h)
return schar(tonumber(h, 16))
end
local function UrlDecode(szText)
return szText:gsub("+", " "):gsub("%%(%x%x)", get_urldecode)
end
-- trim
local function trim(text)
if not text or text == "" then
return ""
end
return (sgsub(text, "^%s*(.-)%s*$", "%1"))
end
-- md5
local function md5(content)
local stdout = luci.sys.exec('echo \"' .. urlEncode(content) .. '\" | md5sum | cut -d \" \" -f1')
-- assert(nixio.errno() == 0)
return trim(stdout)
end
-- base64
local function base64Decode(text)
local raw = text
if not text then return '' end
text = text:gsub("%z", "")
text = text:gsub("_", "/")
text = text:gsub("-", "+")
local mod4 = #text % 4
text = text .. string.sub('====', mod4 + 1)
local result = b64decode(text)
if result then
return result:gsub("%z", "")
else
return raw
end
end
-- 处理数据
local function processData(szType, content)
local result = {
type = szType,
local_port = 1234,
kcp_param = '--nocomp'
}
if szType == 'ssr' then
local dat = split(content, "/%?")
local hostInfo = split(dat[1], ':')
result.server = hostInfo[1]
result.server_port = hostInfo[2]
result.protocol = hostInfo[3]
result.encrypt_method = hostInfo[4]
result.obfs = hostInfo[5]
result.password = base64Decode(hostInfo[6])
local params = {}
for _, v in pairs(split(dat[2], '&')) do
local t = split(v, '=')
params[t[1]] = t[2]
end
result.obfs_param = base64Decode(params.obfsparam)
result.protocol_param = base64Decode(params.protoparam)
local group = base64Decode(params.group)
if group then
result.alias = "[" .. group .. "] "
end
result.alias = result.alias .. base64Decode(params.remarks)
elseif szType == 'vmess' then
local info = jsonParse(content)
result.type = 'v2ray'
result.server = info.add
result.server_port = info.port
result.transport = info.net
result.alter_id = info.aid
result.vmess_id = info.id
result.alias = info.ps
-- result.mux = 1
-- result.concurrency = 8
if info.net == 'ws' then
result.ws_host = info.host
result.ws_path = info.path
end
if info.net == 'h2' then
result.h2_host = info.host
result.h2_path = info.path
end
if info.net == 'tcp' then
if info.type and info.type ~= "http" then
info.type = "none"
end
result.tcp_guise = info.type
result.http_host = info.host
result.http_path = info.path
end
if info.net == 'kcp' then
result.kcp_guise = info.type
result.mtu = 1350
result.tti = 50
result.uplink_capacity = 5
result.downlink_capacity = 20
result.read_buffer_size = 2
result.write_buffer_size = 2
end
if info.net == 'quic' then
result.quic_guise = info.type
result.quic_key = info.key
result.quic_security = info.securty
end
if info.security then
result.security = info.security
end
if info.tls == "tls" or info.tls == "1" then
result.tls = "1"
result.tls_host = info.host
result.insecure = 1
else
result.tls = "0"
end
elseif szType == "ss" then
local idx_sp = 0
local alias = ""
if content:find("#") then
idx_sp = content:find("#")
alias = content:sub(idx_sp + 1, -1)
end
local info = content:sub(1, idx_sp - 1)
local hostInfo = split(base64Decode(info), "@")
local host = split(hostInfo[2], ":")
local userinfo = base64Decode(hostInfo[1])
local method = userinfo:sub(1, userinfo:find(":") - 1)
local password = userinfo:sub(userinfo:find(":") + 1, #userinfo)
result.alias = UrlDecode(alias)
result.type = "ss"
result.server = host[1]
if host[2]:find("/%?") then
local query = split(host[2], "/%?")
result.server_port = query[1]
local params = {}
for _, v in pairs(split(query[2], '&')) do
local t = split(v, '=')
params[t[1]] = t[2]
end
if params.plugin then
local plugin_info = UrlDecode(params.plugin)
local idx_pn = plugin_info:find(";")
if idx_pn then
result.plugin = plugin_info:sub(1, idx_pn - 1)
result.plugin_opts = plugin_info:sub(idx_pn + 1, #plugin_info)
else
result.plugin = plugin_info
end
end
else
result.server_port = host[2]
end
result.encrypt_method_ss = method
result.password = password
elseif szType == "ssd" then
result.type = "ss"
result.server = content.server
result.server_port = content.port
result.password = content.password
result.encrypt_method_ss = content.encryption
result.plugin = content.plugin
result.plugin_opts = content.plugin_options
result.alias = "[" .. content.airport .. "] " .. content.remarks
elseif szType == "trojan" then
local idx_sp = 0
local alias = ""
if content:find("#") then
idx_sp = content:find("#")
alias = content:sub(idx_sp + 1, -1)
end
local info = content:sub(1, idx_sp - 1)
local hostInfo = split(info, "@")
local host = split(hostInfo[2], ":")
local userinfo = hostInfo[1]
local password = userinfo
result.alias = UrlDecode(alias)
result.type = "trojan"
result.server = host[1]
-- 按照官方的建议 默认验证ssl证书
result.insecure = "0"
result.tls = "1"
if host[2]:find("?") then
local query = split(host[2], "?")
result.server_port = query[1]
local params = {}
for _, v in pairs(split(query[2], '&')) do
local t = split(v, '=')
params[t[1]] = t[2]
end
if params.peer then
-- 未指定peer(sni)默认使用remote addr
result.tls_host = params.peer
end
if params.allowInsecure == "1" then
result.insecure = "1"
else
result.insecure = "0"
end
else
result.server_port = host[2]
end
result.password = password
end
if not result.alias then
if result.server and result.server_port then
result.alias = result.server .. ':' .. result.server_port
else
result.alias = "NULL"
end
end
-- alias 不参与 hashkey 计算
local alias = result.alias
result.alias = nil
local switch_enable = result.switch_enable
result.switch_enable = nil
result.hashkey = md5(jsonStringify(result))
result.alias = alias
result.switch_enable = switch_enable
return result
end
-- wget
local function wget(url)
local stdout = luci.sys.exec('wget-ssl -q --user-agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36" --no-check-certificate -t 3 -T 10 -O- "' .. url .. '"')
return trim(stdout)
end
local function check_filer(result)
do
local filter_word = split(filter_words, "/")
for i, v in pairs(filter_word) do
if result.alias:find(v) then
log('订阅节点关键字过滤:“' .. v ..'” ,该节点被丢弃')
return true
end
end
end
end
local execute = function()
-- exec
do
if proxy == '0' then -- 不使用代理更新的话先暂停
log('服务正在暂停')
luci.sys.init.stop(name)
end
for k, url in ipairs(subscribe_url) do
local raw = wget(url)
if #raw > 0 then
local nodes, szType
local groupHash = md5(url)
cache[groupHash] = {}
tinsert(nodeResult, {})
local index = #nodeResult
-- SSD 似乎是这种格式 ssd:// 开头的
if raw:find('ssd://') then
szType = 'ssd'
local nEnd = select(2, raw:find('ssd://'))
nodes = base64Decode(raw:sub(nEnd + 1, #raw))
nodes = jsonParse(nodes)
local extra = {
airport = nodes.airport,
port = nodes.port,
encryption = nodes.encryption,
password = nodes.password
}
local servers = {}
-- SS里面包着 干脆直接这样
for _, server in ipairs(nodes.servers) do
tinsert(servers, setmetatable(server, { __index = extra }))
end
nodes = servers
else
-- ssd 外的格式
nodes = split(base64Decode(raw):gsub(" ", "_"), "\n")
end
for _, v in ipairs(nodes) do
if v then
local result
if szType == 'ssd' then
result = processData(szType, v)
elseif not szType then
local node = trim(v)
local dat = split(node, "://")
if dat and dat[1] and dat[2] then
local dat3 = ""
if dat[3] then
dat3 = "://" .. dat[3]
end
if dat[1] == 'ss' or dat[1] == 'trojan' then
result = processData(dat[1], dat[2] .. dat3)
else
result = processData(dat[1], base64Decode(dat[2]))
end
end
else
log('跳过未知类型: ' .. szType)
end
-- log(result)
if result then
if
not result.server or
not result.server_port or
result.alias == "NULL" or
check_filer(result) or
result.server:match("[^0-9a-zA-Z%-%.%s]") -- 中文做地址的 也没有人拿中文域名搞,就算中文域也有Puny Code SB 机场
then
log('丢弃无效节点: ' .. result.type ..' 节点, ' .. result.alias)
else
log('成功解析: ' .. result.type ..' 节点, ' .. result.alias)
result.grouphashkey = groupHash
tinsert(nodeResult[index], result)
cache[groupHash][result.hashkey] = nodeResult[index][#nodeResult[index]]
end
end
end
end
log('成功解析节点数量: ' ..#nodes)
else
log(url .. ': 获取内容为空')
end
end
end
-- diff
do
if next(nodeResult) == nil then
log("更新失败,没有可用的节点信息")
if proxy == '0' then
luci.sys.init.start(name)
log('订阅失败, 恢复服务')
end
return
end
local add, del = 0, 0
ucic:foreach(name, uciType, function(old)
if old.grouphashkey or old.hashkey then -- 没有 hash 的不参与删除
if not nodeResult[old.grouphashkey] or not nodeResult[old.grouphashkey][old.hashkey] then
ucic:delete(name, old['.name'])
del = del + 1
else
local dat = nodeResult[old.grouphashkey][old.hashkey]
ucic:tset(name, old['.name'], dat)
-- 标记一下
setmetatable(nodeResult[old.grouphashkey][old.hashkey], { __index = { _ignore = true } })
end
else
if not old.alias then
old.alias = old.server .. ':' .. old.server_port
end
log('忽略手动添加的节点: ' .. old.alias)
end
end)
for k, v in ipairs(nodeResult) do
for kk, vv in ipairs(v) do
if not vv._ignore then
local section = ucic:add(name, uciType)
ucic:tset(name, section, vv)
ucic:set(name, section, "switch_enable", switch)
add = add + 1
end
end
end
ucic:commit(name)
-- 如果原有服务器节点已经不见了就尝试换为第一个节点
local globalServer = ucic:get_first(name, 'global', 'global_server', '')
if globalServer ~= "nil" then
local firstServer = ucic:get_first(name, uciType)
if firstServer then
if not ucic:get(name, globalServer) then
luci.sys.call("/etc/init.d/" .. name .. " stop > /dev/null 2>&1 &")
ucic:commit(name)
ucic:set(name, ucic:get_first(name, 'global'), 'global_server', ucic:get_first(name, uciType))
ucic:commit(name)
log('当前主服务器节点已被删除,正在自动更换为第一个节点。')
luci.sys.call("/etc/init.d/" .. name .. " start > /dev/null 2>&1 &")
else
log('维持当前主服务器节点。')
luci.sys.call("/etc/init.d/" .. name .." restart > /dev/null 2>&1 &")
end
else
log('没有服务器节点了,停止服务')
luci.sys.call("/etc/init.d/" .. name .. " stop > /dev/null 2>&1 &")
end
end
log('新增节点数量: ' ..add, '删除节点数量: ' .. del)
log('订阅更新成功')
end
end
if subscribe_url and #subscribe_url > 0 then
xpcall(execute, function(e)
log(e)
log(debug.traceback())
log('发生错误, 正在恢复服务')
local firstServer = ucic:get_first(name, uciType)
if firstServer then
luci.sys.call("/etc/init.d/" .. name .." restart > /dev/null 2>&1 &") -- 不加&的话日志会出现的更早
log('重启服务成功')
else
luci.sys.call("/etc/init.d/" .. name .." stop > /dev/null 2>&1 &") -- 不加&的话日志会出现的更早
log('停止服务成功')
end
end)
end