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use garage_table::util::EmptyKey;
use garage_util::data::*;
use crate::bucket_table::Bucket;
use crate::garage::Garage;
use crate::helper::error::*;
pub struct BucketHelper<'a>(pub(crate) &'a Garage);
impl<'a> BucketHelper<'a> {
#[allow(clippy::ptr_arg)]
pub async fn resolve_global_bucket_name(
&self,
bucket_name: &String,
) -> Result<Option<Uuid>, Error> {
// Bucket names in Garage are aliases, true bucket identifiers
// are 32-byte UUIDs. This function resolves bucket names into
// their full identifier by looking up in the bucket_alias_table.
// This function also allows buckets to be identified by their
// full UUID (hex-encoded). Here, if the name to be resolved is a
// hex string of the correct length, it is directly parsed as a bucket
// identifier which is returned. There is no risk of this conflicting
// with an actual bucket name: bucket names are max 63 chars long by
// the AWS spec, and hex-encoded UUIDs are 64 chars long.
let hexbucket = hex::decode(bucket_name.as_str())
.ok()
.map(|by| Uuid::try_from(&by))
.flatten();
if let Some(bucket_id) = hexbucket {
Ok(self
.0
.bucket_table
.get(&bucket_id, &EmptyKey)
.await?
.filter(|x| !x.state.is_deleted())
.map(|_| bucket_id))
} else {
Ok(self
.0
.bucket_alias_table
.get(&EmptyKey, bucket_name)
.await?
.map(|x| x.state.get().as_option().map(|x| x.bucket_id))
.flatten())
}
}
pub async fn get_existing_bucket(&self, bucket_id: Uuid) -> Result<Bucket, Error> {
self.0
.bucket_table
.get(&bucket_id, &EmptyKey)
.await?
.filter(|b| !b.is_deleted())
.ok_or_bad_request(format!("Bucket {:?} does not exist", bucket_id))
}
}
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