我应该缓存在openid中返回的XRDS文件吗? [英] Should I cache the XRDS file returned in openid?

问题描述

在openid序列的开始部分，我请求OP(例如Yahoo.com)并取回XRDS文件，该文件告诉我在其余openid过程中需要使用的实际URL.因此，我可以缓存该初始文件.例如.如果我有数百个用户在使用Yahoo openid，那么我每小时只需要进行一次初始提取?

In the initial part of the openid sequence, I request the OP (e.g. Yahoo.com) and get back the XRDS file which tells me the actual URL I need to use for the rest of the openid process. So, can I cache this initial file. E.g. if I have hundreds of users using a Yahoo openid, I would only have to do the initial fetch once every hour?

推荐答案

是的，OpenID规范不禁止发现缓存，并且大多数启用了OpenID的站点都这样做.当然，缓存发现结果的持续时间应该在速度，内存消耗和陈旧数据之间取得平衡.

Yes, the OpenID spec does not forbid discovery caching, and most OpenID-enabled sites do just that. Of course the duration you cache discovery results should be balanced between speed, memory consumption and stale data.

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