base64是对Firestore的自定义文档ID进行编码的好选择吗? [英] Is base64 a good option for encoding custom Document IDS for Firestore?

问题描述

我正在努力在Firebase应用程序中创建一些用户，我想提供自定义用户ID，以便他们通过外部服务进行身份验证.

I am working on creating some users in my firebase app and I would like to provide custom user ids as they are authenticating with an external service.

例如，我的用户ID生成由如下两部分组成:

For example my user ID generation is consisted by 2 parts like so:

AuthService:AuthServiceUsername

在现实中看起来可能像这样:

That can look in reality like:

Instragram:dimitrioskanellopoulos

但是我不希望将此字符串用作用户ID，因此我将其编码为base64，如下所示:

But I dont like to have this string used as a user id so I encode it to base64 like so:

  const uid = Buffer.from(`instagram:${serviceUserID}`).toString('base64');

我这样做有什么危险吗?在查询参数方面还可以使用base64吗?

Is there any risk for me doing that ? Is base64 ok to be used also in regards to query params?

推荐答案

Firestore文档ID在允许和不允许的内容上非常灵活.请参见 https://firebase.google.com/docs/firestore/quotas#limits.

Firestore document IDs are quite flexible on what's allowed and not. See https://firebase.google.com/docs/firestore/quotas#limits.

但是base64实际上并不安全，因为它包含/，这在Firestore文档ID中是不允许的

But base64 would actually not be safe, since it contains /, which is disallowed in Firestore document IDs

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