[pbs-devel] [PATCH proxmox v4 1/4] s3 client: restrict bucket template pattern to start of endpoint url

[Christian Ebner]

The template patterns were introduced with the goal to increase
reusability of the same endpoint configuration for multiple buckets.
The pattern are then replaced with the respective configuration value
by the client on instantiation.

However, for some operations one might not know a bucket name
a-priori and the bucket name might not be required. For example, a
list buckets operations can be performed on the endpoint url without
the bucket name subdomain on the S3 API endpoint.

Therefore, restrict the bucket pattern to be at the start of the
endpoint name, allowing to strip it if not provided, and perform the
requests without the subdomain prefix in that case.

This is a breaking change.

Signed-off-by: Christian Ebner <c.ebner at proxmox.com>
Reviewed-by: Lukas Wagner <l.wagner at proxmox.com>
Tested-by: Lukas Wagner <l.wagner at proxmox.com>
---
changes since version 3:
- no changes

 proxmox-s3-client/src/api_types.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proxmox-s3-client/src/api_types.rs b/proxmox-s3-client/src/api_types.rs
index eff15f37..4a589717 100644
--- a/proxmox-s3-client/src/api_types.rs
+++ b/proxmox-s3-client/src/api_types.rs
@@ -11,7 +11,7 @@ use proxmox_schema::{api, const_regex, ApiStringFormat, Schema, StringSchema, Up
 /// Regex to match S3 endpoint full qualified domain names, including template patterns for bucket
 /// name or region.
 pub const S3_ENDPOINT_NAME_STR: &str = concatcp!(
-    r"(?:(?:(", DNS_LABEL_STR, r"|\{\{bucket\}\}|\{\{region\}\})\.)*", DNS_LABEL_STR, ")"
+    r"(^\{\{bucket\}\}\.)*(?:(?:(", DNS_LABEL_STR, r"|\{\{region\}\})\.)*", DNS_LABEL_STR, ")"
 );
 
 const_regex! {
-- 
2.47.2