refactor: clean repository structure for v0.1.0 open source release
- Remove Go artifacts (cmd/, internal/, pkg/, go.mod) - Move furt-lua/* content to repository root - Restructure as clean src/, config/, scripts/, tests/ layout - Rewrite README.md as practical tool documentation - Remove timeline references and marketing language - Clean .gitignore from Go-era artifacts - Update config/server.lua with example.org defaults - Add .env.production to .gitignore for security Repository now ready for open source distribution with minimal, focused structure and generic configuration templates. close issue DAW/furt#86
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38 changed files with 280 additions and 5892 deletions
288
src/main.lua
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288
src/main.lua
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-- furt-lua/src/main.lua
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-- Pure Lua HTTP-Server for Furt API-Gateway
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-- Dragons@Work Digital Sovereignty Project
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local socket = require("socket")
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local cjson = require("cjson")
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-- Load modules
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local Auth = require("src.auth")
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local MailRoute = require("src.routes.mail")
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local AuthRoute = require("src.routes.auth")
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-- Load configuration
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local config = require("config.server")
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-- HTTP-Server Module
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local FurtServer = {}
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function FurtServer:new()
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local instance = {
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server = nil,
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port = config.port or 8080,
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host = config.host or "127.0.0.1",
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routes = {}
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}
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setmetatable(instance, self)
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self.__index = self
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return instance
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end
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-- Add route handler
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function FurtServer:add_route(method, path, handler)
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if not self.routes[method] then
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self.routes[method] = {}
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end
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self.routes[method][path] = handler
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end
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-- Add protected route (requires authentication)
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function FurtServer:add_protected_route(method, path, required_permission, handler)
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self:add_route(method, path, Auth.create_protected_route(required_permission, handler))
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end
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-- Parse HTTP request
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function FurtServer:parse_request(client)
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local request_line = client:receive()
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if not request_line then
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return nil
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end
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-- Parse request line: "POST /v1/mail/send HTTP/1.1"
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local method, path, protocol = request_line:match("(%w+) (%S+) (%S+)")
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if not method then
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return nil
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end
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-- Parse headers
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local headers = {}
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local content_length = 0
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while true do
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local line = client:receive()
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if not line or line == "" then
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break
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end
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local key, value = line:match("([^:]+): (.+)")
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if key and value then
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headers[key:lower()] = value
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if key:lower() == "content-length" then
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content_length = tonumber(value) or 0
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end
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end
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end
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-- Parse body
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local body = ""
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if content_length > 0 then
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body = client:receive(content_length)
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end
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return {
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method = method,
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path = path,
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protocol = protocol,
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headers = headers,
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body = body,
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content_length = content_length
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}
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end
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-- Add CORS headers with configurable origins
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function FurtServer:add_cors_headers(request)
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local allowed_origins = config.cors and config.cors.allowed_origins or {
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"http://localhost:1313",
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"http://127.0.0.1:1313",
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"https://dragons-at-work.de",
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"https://www.dragons-at-work.de"
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}
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-- Check if request has Origin header
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local origin = request and request.headers and request.headers.origin
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local cors_origin = "*" -- Default fallback
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-- If origin is provided and in allowed list, use it
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if origin then
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for _, allowed in ipairs(allowed_origins) do
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if origin == allowed then
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cors_origin = origin
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break
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end
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end
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end
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return {
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["Access-Control-Allow-Origin"] = cors_origin,
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["Access-Control-Allow-Methods"] = "GET, POST, PUT, DELETE, OPTIONS",
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["Access-Control-Allow-Headers"] = "Content-Type, X-API-Key, Authorization, Accept",
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["Access-Control-Max-Age"] = "86400",
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["Access-Control-Allow-Credentials"] = "false"
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}
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end
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-- Create HTTP response
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function FurtServer:create_response(status, data, content_type, additional_headers, request)
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content_type = content_type or "application/json"
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local body = ""
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if type(data) == "table" then
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body = cjson.encode(data)
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else
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body = tostring(data or "")
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end
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-- Start with CORS headers
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local headers = self:add_cors_headers(request)
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-- Add standard headers
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headers["Content-Type"] = content_type
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headers["Content-Length"] = tostring(#body)
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headers["Connection"] = "close"
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headers["Server"] = "Furt-Lua/1.1"
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-- Add additional headers if provided
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if additional_headers then
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for key, value in pairs(additional_headers) do
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headers[key] = value
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end
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end
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-- Build response
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local response = string.format("HTTP/1.1 %d %s\r\n", status, self:get_status_text(status))
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for key, value in pairs(headers) do
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response = response .. key .. ": " .. value .. "\r\n"
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end
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response = response .. "\r\n" .. body
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return response
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end
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-- Get HTTP status text
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function FurtServer:get_status_text(status)
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local status_texts = {
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[200] = "OK",
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[204] = "No Content",
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[400] = "Bad Request",
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[401] = "Unauthorized",
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[403] = "Forbidden",
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[404] = "Not Found",
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[405] = "Method Not Allowed",
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[429] = "Too Many Requests",
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[500] = "Internal Server Error"
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}
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return status_texts[status] or "Unknown"
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end
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-- Handle client request
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function FurtServer:handle_client(client)
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local request = self:parse_request(client)
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if not request then
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local response = self:create_response(400, {error = "Invalid request"}, nil, nil, nil)
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client:send(response)
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return
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end
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print(string.format("[%s] %s %s", os.date("%Y-%m-%d %H:%M:%S"),
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request.method, request.path))
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-- Handle OPTIONS preflight requests (CORS)
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if request.method == "OPTIONS" then
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local response = self:create_response(204, "", "text/plain", nil, request)
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client:send(response)
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return
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end
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-- Route handling
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local handler = nil
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if self.routes[request.method] and self.routes[request.method][request.path] then
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handler = self.routes[request.method][request.path]
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end
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if handler then
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local success, result = pcall(handler, request, self)
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if success then
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client:send(result)
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else
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print("Handler error: " .. tostring(result))
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local error_response = self:create_response(500, {error = "Internal server error"}, nil, nil, request)
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client:send(error_response)
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end
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else
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print("Route not found: " .. request.method .. " " .. request.path)
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local response = self:create_response(404, {error = "Route not found", method = request.method, path = request.path}, nil, nil, request)
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client:send(response)
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end
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end
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-- Start HTTP server
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function FurtServer:start()
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self.server = socket.bind(self.host, self.port)
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if not self.server then
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error("Failed to bind to " .. self.host .. ":" .. self.port)
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end
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print(string.format("Furt HTTP-Server started on %s:%d", self.host, self.port))
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print("API-Key authentication: ENABLED")
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print("Rate limiting: ENABLED (60 req/hour per API key, 100 req/hour per IP)")
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print("CORS enabled for configured origins")
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print("Press Ctrl+C to stop")
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while true do
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local client = self.server:accept()
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if client then
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client:settimeout(10) -- 10 second timeout
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self:handle_client(client)
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client:close()
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end
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end
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end
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-- Initialize server and register routes
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local server = FurtServer:new()
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-- Public routes (no authentication required)
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server:add_route("GET", "/health", function(request, server)
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local response_data = {
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status = "healthy",
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service = "furt-lua",
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version = "1.1.0",
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timestamp = os.time(),
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features = {
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smtp_configured = config.mail and config.mail.username ~= nil,
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auth_enabled = true,
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rate_limiting = true
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}
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}
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return server:create_response(200, response_data, nil, nil, request)
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end)
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-- Test endpoint for development (disable in production)
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if os.getenv("ENABLE_TEST_ENDPOINT") == "true" then
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server:add_route("POST", "/test", function(request, server)
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local response_data = {
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message = "Test endpoint working",
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received_data = request.body,
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headers_count = 0,
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warning = "This is a development endpoint"
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}
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-- Count headers
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for _ in pairs(request.headers) do
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response_data.headers_count = response_data.headers_count + 1
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end
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return server:create_response(200, response_data, nil, nil, request)
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end)
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print("⚠️ Test endpoint enabled (development mode)")
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end
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-- Protected routes (require authentication)
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server:add_protected_route("POST", "/v1/mail/send", "mail:send", MailRoute.handle_mail_send)
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server:add_protected_route("GET", "/v1/auth/status", nil, AuthRoute.handle_auth_status)
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-- Start server
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server:start()
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