【网络通信】跨服凭证：跨服身份的会话传递

function kflogin(actor)
    local p = class(actor)
    local token = tostring(os.time()) .. "|" .. tostring(math.random(1000, 9999))
    setplayvar(actor, "HUMAN", "KFTOKEN", token, 1)
    sendluamsg(actor, 7104, 0, 0, 0, token)
    sendmsg(actor, 0, p:GetName() .. " 已进入跨服战场，会话凭证已发放")
end

function verifyToken(actor, token)
    local saved = getplayvar(actor, "HUMAN", "KFTOKEN") or ""
    if saved == "" or saved ~= token then
        sendmsg(actor, 0, "会话凭证无效，请重新跨服进场")
        return false
    end
    local ts = tonumber(string.match(token, "^(%d+)") or "0")
    if os.time() - ts > 300 then
        sendmsg(actor, 0, "会话凭证已过期，请重新跨服进场")
        return false
    end
    return true
end