From add7a35e5513e3059596ce6aff039a37007c37dd Mon Sep 17 00:00:00 2001
From: Kerry Su <me@sshockwave.net>
Date: Wed, 30 Dec 2020 11:45:52 +0800
Subject: [PATCH] b2: docs for download_url with private buckets
The current authentication scheme works without creating
a public download endpoint for a private bucket as in the B2 official blog.
On the contrary, if the existing authorization header gets duplicated
in the Cloudflare Workers script, one might receive 401 Unauthorized errors.
---
backend/b2/b2.go | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/backend/b2/b2.go b/backend/b2/b2.go
index 08c4e0c3e..75589bfaf 100644
--- a/backend/b2/b2.go
+++ b/backend/b2/b2.go
@@ -155,7 +155,9 @@ to start uploading.`,
This is usually set to a Cloudflare CDN URL as Backblaze offers
free egress for data downloaded through the Cloudflare network.
-This is probably only useful for a public bucket.
+Rclone works with private buckets by sending an "Authorization" header.
+If the custom endpoint rewrites the requests for authentication,
+e.g., in Cloudflare Workers, this header needs to be handled properly.
Leave blank if you want to use the endpoint provided by Backblaze.`,
Advanced: true,
}, {