init work remote API

lua/remoteapi.lua

@@ -0,0 +1,81 @@
+local M		= {}
+local http	= require "resty.http"
+local cjson	= require "cjson"
+local logger	= require "logger"
+
+function M.send(method, url, data)
+	local httpc, err = http.new()
+	if not httpc then
+		logger.log(ngx.ERR, "REMOTE API", "Can't instantiate HTTP object : " .. err)
+		return false, nil, nil
+	end
+	local res, err = httpc:request_uri(ngx.shared.remote_api:get("server") .. url, {
+		method = method,
+		body = cjson.encode(data),
+		headers = {
+			["Content-Type"] = "application/json",
+			["User-Agent"] = "bunkerized-nginx/" .. data["version"]
+		}
+	})
+	if not res then
+		logger.log(ngx.ERR, "REMOTE API", "Can't send HTTP request : " .. err)
+		return false, nil, nil
+	end
+	if res.status ~= 200 then
+		logger.log(ngx.WARN, "REMOTE API", "Received status " .. res.status .. " from API : " .. res.body)
+	end
+	return true, res.status, cjson.decode(res.body)["data"]
+end
+
+function M.gen_data(use_id, data)
+	local all_data = {}
+	if use_id then
+		all_data["id"] = ngx.shared.remote_api:get("id")
+	end
+	all_data["version"] = ngx.shared.remote_api:get("version")
+	for k, v in pairs(data) do
+		all_data[k] = v
+	end
+	return all_data
+end
+
+function M.register()
+	local request = {}
+	local res, status, data = M.send("POST", "/register", M.gen_data(false, request))
+	if res and status == 200 then
+		return true, data
+	end
+	return false, data
+end
+
+function M.ping()
+	local request = {}
+	local res, status, data = M.send("GET", "/ping", M.gen_data(true, request))
+	if res and status == 200 then
+		return true, data
+	end
+	return false, data
+end
+
+function M.ip(ip, reason)
+	local request = {
+		["ip"] = ip,
+		["reason"] = reason
+	}
+	local res, status, data = M.send("POST", "/ip", M.gen_data(true, request))
+	if res and status == 200 then
+		return true, data
+	end
+	return false, data
+end
+
+function M.db()
+	local request = {}
+	local res, status, data = M.send("GET", "/db", M.gen_data(true, request))
+	if res and status == 200 then
+		return true, data
+	end
+	return false, data
+end
+
+return M