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use garage_table::util::*;
use garage_util::crdt::*;
use garage_util::error::OkOrMessage;
use crate::garage::Garage;
use crate::helper::bucket::BucketHelper;
use crate::helper::error::*;
use crate::key_table::{Key, KeyFilter};
use crate::permission::BucketKeyPerm;
pub struct KeyHelper<'a>(pub(crate) &'a Garage);
#[allow(clippy::ptr_arg)]
impl<'a> KeyHelper<'a> {
/// Returns a Key if it is present in key table,
/// even if it is in deleted state. Querying a non-existing
/// key ID returns an internal error.
pub async fn get_internal_key(&self, key_id: &String) -> Result<Key, Error> {
Ok(self
.0
.key_table
.get(&EmptyKey, key_id)
.await?
.ok_or_message(format!("Key {} does not exist", key_id))?)
}
/// Returns a Key if it is present in key table,
/// only if it is in non-deleted state.
/// Querying a non-existing key ID or a deleted key
/// returns a bad request error.
pub async fn get_existing_key(&self, key_id: &String) -> Result<Key, Error> {
self.0
.key_table
.get(&EmptyKey, key_id)
.await?
.filter(|b| !b.state.is_deleted())
.ok_or_bad_request(format!("Key {} does not exist or has been deleted", key_id))
}
/// Returns a Key if it is present in key table,
/// looking it up by key ID or by a match on its name,
/// only if it is in non-deleted state.
/// Querying a non-existing key ID or a deleted key
/// returns a bad request error.
pub async fn get_existing_matching_key(&self, pattern: &str) -> Result<Key, Error> {
let candidates = self
.0
.key_table
.get_range(
&EmptyKey,
None,
Some(KeyFilter::MatchesAndNotDeleted(pattern.to_string())),
10,
EnumerationOrder::Forward,
)
.await?
.into_iter()
.collect::<Vec<_>>();
if candidates.len() != 1 {
Err(Error::BadRequest(format!(
"{} matching keys",
candidates.len()
)))
} else {
Ok(candidates.into_iter().next().unwrap())
}
}
/// Deletes an API access key
pub async fn delete_key(&self, key: &mut Key) -> Result<(), Error> {
let bucket_helper = BucketHelper(self.0);
let state = key.state.as_option_mut().unwrap();
// --- done checking, now commit ---
// (the step at unset_local_bucket_alias will fail if a bucket
// does not have another alias, the deletion will be
// interrupted in the middle if that happens)
// 1. Delete local aliases
for (alias, _, to) in state.local_aliases.items().iter() {
if let Some(bucket_id) = to {
bucket_helper
.unset_local_bucket_alias(*bucket_id, &key.key_id, alias)
.await?;
}
}
// 2. Remove permissions on all authorized buckets
for (ab_id, _auth) in state.authorized_buckets.items().iter() {
bucket_helper
.set_bucket_key_permissions(*ab_id, &key.key_id, BucketKeyPerm::NO_PERMISSIONS)
.await?;
}
// 3. Actually delete key
key.state = Deletable::delete();
self.0.key_table.insert(key).await?;
Ok(())
}
}
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