[Bug]: `cloudflare-r2` storage provider ignores custom endpoint, breaking EU jurisdiction R2 buckets

[remihuigen]

What happened?

Summary

When AFFiNE storage is configured with provider: "cloudflare-r2", a custom config.endpoint is ignored.
The provider always uses https://<accountId>.r2.cloudflarestorage.com, which breaks uploads for jurisdictional buckets (for example EU) that require a jurisdiction endpoint like https://<accountId>.eu.r2.cloudflarestorage.com.

Current behavior

With config like:

{
  "provider": "cloudflare-r2",
  "bucket": "affine",
  "config": {
    "accountId": "<account-id>",
    "endpoint": "https://<account-id>.eu.r2.cloudflarestorage.com",
    "region": "auto",
    "credentials": {
      "accessKeyId": "...",
      "secretAccessKey": "..."
    }
  }
}

AFFiNE still signs/sends requests to the global endpoint and uploads fail with 403 AccessDenied for EU jurisdiction buckets.

Expected behavior

If config.endpoint is provided for cloudflare-r2, AFFiNE should use it (while keeping path-style addressing).
Fallback to https://<accountId>.r2.cloudflarestorage.com only when endpoint is not set.

References

• Cloudflare R2 data location / jurisdiction endpoints: https://developers.cloudflare.com/r2/reference/data-location/

Distribution version

macOS x64 (Intel)

App Version

No response

What browsers are you seeing the problem on if you're using web version?

No response

Are you self-hosting?

• Yes

Self-hosting Version

v0.26.6

Relevant log output

Anything else?

No response

Is your content generated by AI?

• I confirm that the content I submitted was not generated by AI / merely contained minimal AI edits.

[affine-issue-bot]

Issue Status: 🆕 *Untriaged

*🆕 Untriaged

The team has not yet reviewed the issue. We usually do it within one business day.
Docs: https://github.com/toeverything/AFFiNE/blob/canary/docs/issue-triaging.md

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