【运维发布】域名切换：主备域名的解析演练

-- 域名切换：解析脚本
local player = class(actor)
local function switchDomain(player, direction)
    local ts = os.date("%Y%m%d%H%M%S")
    if direction == "to_backup" then
        setsysvarex("DnsMain", "backup_ip", true)
        setsysvarex("DnsSwitch_" .. ts, "to_backup", true)
        sendmsg(player, 1, 0, "解析已切至备用线路，切换时间 " .. ts)
    elseif direction == "to_main" then
        setsysvarex("DnsMain", "main_ip", true)
        setsysvarex("DnsSwitch_" .. ts, "to_main", true)
        sendmsg(player, 1, 0, "解析已切回主线路。")
    end
end

-- 兼容验证：切换后检查
local player = class(actor)
local function postSwitchCheck(player)
    local checks = {
        {name = "证书有效期", pass = os.time() < 1798761600},
        {name = "DNS 缓存过期", pass = getsysvar("DnsCacheFlushed") == "1"},
        {name = "老版本兜底域名", pass = getsysvar("LegacyDomainOk") == "1"},
    }
    for _, c in ipairs(checks) do
        sendmsg(player, 1, 0, (c.pass and "[√] " or "[×] ") .. c.name)
    end
end