odboy
4c3648cf7f
- PHP 客户端 (kenaito-conf-php-client) - .NET 客户端 (kenaito-conf-dotnet-client) - C 客户端 (kenaito-conf-c-client) - C++ 客户端 (kenaito-conf-cpp-client) - Lua 客户端 (kenaito-conf-lua-client) - Kotlin 客户端 (kenaito-conf-kotlin-client) - Rust 客户端 (kenaito-conf-rust-client) - Ruby 客户端 (kenaito-conf-ruby-client) 每个客户端包含完整的 SDK 实现和 demo 示例，支持： - 配置拉取（全量/增量） - AES-128-CBC 解密 - 本地缓存 - 变更回调 - Token 认证 更新根目录 README.md： - 技术栈列表新增 8 种语言 - 项目结构新增 16 个目录 - 客户端接入章节新增 8 个使用示例
121 lines
3.6 KiB
Lua
121 lines
3.6 KiB
Lua
local http = require("socket.http")
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local ltn12 = require("ltn12")
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local cjson = require("cjson")
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local openssl = require("openssl")
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local ConfigClient = {}
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ConfigClient.__index = ConfigClient
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function ConfigClient.new(config)
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local self = setmetatable({}, ConfigClient)
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self.config = config or {}
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self.config.baseUrl = self.config.baseUrl or ""
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self.config.appName = self.config.appName or ""
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self.config.env = self.config.env or "dev"
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self.config.version = self.config.version or "latest"
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self.config.token = self.config.token or ""
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self.config.syncInterval = self.config.syncInterval or 60
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self.config.ignoreGlobal = self.config.ignoreGlobal or false
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self.config.cacheDir = self.config.cacheDir or "."
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self.configs = {}
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self.secret = ""
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self.globalSecret = ""
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self.lastTime = 0
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self.handlers = {}
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return self
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end
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function ConfigClient:on_change(handler)
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table.insert(self.handlers, handler)
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end
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function ConfigClient:get(key)
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return self.configs[key]
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end
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function ConfigClient:get_all()
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return self.configs
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end
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local function decrypt_config(secret, data)
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local prefix = "{Cipher}"
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if string.sub(data, 1, #prefix) ~= prefix then
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return data
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end
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local encrypted = string.sub(data, #prefix + 1)
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-- MD5 hash
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local md5_hash = openssl.digest("md5", secret)
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local aes_key = string.sub(md5_hash, 17)
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-- Base64 decode
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local cipher_text = openssl.base64(encrypted, false)
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-- AES-128-CBC decrypt
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local iv = string.rep("\0", 16)
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local cipher = openssl.cipher.new("aes-128-cbc")
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local plain_text = cipher:decrypt(cipher_text, aes_key, iv)
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-- Remove PKCS7 padding
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local padding = string.byte(plain_text, -1)
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return string.sub(plain_text, 1, -padding - 1)
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end
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function ConfigClient:start()
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-- Fetch all configs
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local url = self.config.baseUrl .. "/api/fetchAllConfigs"
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local payload = cjson.encode({
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appName = self.config.appName,
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env = self.config.env,
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version = self.config.version,
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ignoreGlobal = self.config.ignoreGlobal,
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token = self.config.token
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})
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local response_body = {}
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local res, code, response_headers = http.request{
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url = url,
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method = "POST",
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headers = {
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["Content-Type"] = "application/json",
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["Content-Length"] = #payload
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},
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source = ltn12.source.string(payload),
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sink = ltn12.sink.table(response_body)
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}
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if code == 200 then
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local data = cjson.decode(table.concat(response_body))
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if data["kenaito.config.encrypt-secret"] then
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self.secret = data["kenaito.config.encrypt-secret"]
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end
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if data["kenaito.config.global-encrypt-secret"] then
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self.globalSecret = data["kenaito.config.global-encrypt-secret"]
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end
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if data["latest.fetch.timestamp"] then
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self.lastTime = tonumber(data["latest.fetch.timestamp"])
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end
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for k, v in pairs(data) do
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if not string.match(k, "^kenaito%.") and k ~= "latest.fetch.timestamp" then
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if type(v) == "string" then
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self.configs[k] = decrypt_config(self.secret, v)
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if self.configs[k] == v and self.globalSecret ~= "" then
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self.configs[k] = decrypt_config(self.globalSecret, v)
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end
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end
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end
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end
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print("[ConfigClient] fetched " .. #self.configs .. " configs")
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end
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end
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function ConfigClient:stop()
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-- Cleanup
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end
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return ConfigClient
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