如何启用“公开共享"将文件上传到Firebase存储时? [英] How to enable "Share publicly" when uploading a file to Firebase storage?

问题描述

Firebase Storage使用Google Cloud Platform进行存储. GCP允许对文件使用公开共享"选项，以便能够在浏览器中查看此类文件.

Firebase Storage uses Google Cloud Platform for storage. GCP allows the option "Share publicly" on files to be able to view such files in a browser.

这是有关此主题的 GCP文档.

在这里，您可以通过GCP控制台上的GUI看到可用的选项.

Here you can see the option available via the GUI on the GCP console.

通过Firebase上传文件时是否可以启用public选项?

Is it possible to enable the public option when uploading a file via Firebase?

尽管不理想，但我已经在整个存储桶上启用了公共阅读功能.

I've enabled public reading on the whole bucket although it's not ideal.

gsutil defacl ch -u allUsers:R gs://<bucket>

推荐答案

使用Firebase Storage，您将获得两个可用于表示文件的URL:

With Firebase Storage, you're given two URLs that you can use to represent files:

// "Private" internal URL, only accessible through Firebase Storage API
// This is protected by Firebase Storage Security Rules & Firebase Auth
gs://bucket/object

// "Public" unguessable URL, accessible by anyone with the link
// This is secured because that token is *very* hard for someone to guess
https://firebasestorage.googleapis.com/v0/bucket/object?alt=media&token=<token>

第二个选项可让您与受信任的个人共享此公开但无法猜测的URL，并允许他们访问内容而无需通过Firebase进行身份验证或使用您的应用程序-认为与Google相册共享家庭照片.除非您希望使用干净的URL进行公开共享，否则这种行为可能会足够好.

The second option allows you to share this public but unguessable URL with trusted individuals, and allows them to access content without authentication to Firebase or using your app--think sharing family photos with Google Photos. Likely this behavior will be good enough, unless you desire public sharing with clean URLs.

您提到的第三个选项涉及直接进入Google Cloud Storage控制台，并使用清晰的URL公开提供文件，而该URL无法通过Firebase Storage客户端获得.这将添加第三个URL:

The third option, as you mention, involves going directly to the Google Cloud Storage console and making files publicly available with a clean URL, which isn't available via the Firebase Storage client. This would add a third URL:

// "Public" clean URL, accessible and guessable
// Not secure, typically used for public, static content
https://storage.googleapis.com/v0/bucket/object

通常来说，除非您希望人们知道和猜测您的内容(托管静态内容，网站文件等)，否则我不会通过GCS公开分享，并且几乎绝对不会只要将默认ACL设置为始终是公共的(如果您添加了新功能并且不再想要此行为，您可能会忘记再次将其关闭...会发生这种情况.)

Generally speaking, unless you want people to know and guess your content (hosting static content, website files, etc.), I would not share publicly via GCS, and almost definitely wouldn't go so far as to set the default ACL to always be public (what happens if you add a new feature and no longer want this behavior, you may forget to turn this back off again...).

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