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-rw-r--r--src/api/api_server.rs4
-rw-r--r--src/api/s3_bucket.rs8
-rw-r--r--src/garage/admin.rs16
-rw-r--r--src/garage/cli/cmd.rs4
-rw-r--r--src/garage/cli/util.rs4
-rw-r--r--src/model/bucket_alias_table.rs17
-rw-r--r--src/model/bucket_table.rs1
-rw-r--r--src/model/helper/bucket.rs79
-rw-r--r--src/model/key_table.rs2
-rw-r--r--src/util/crdt/crdt.rs6
-rw-r--r--src/util/data.rs4
-rw-r--r--src/web/web_server.rs3
12 files changed, 86 insertions, 62 deletions
diff --git a/src/api/api_server.rs b/src/api/api_server.rs
index 42987e78..f5ebed37 100644
--- a/src/api/api_server.rs
+++ b/src/api/api_server.rs
@@ -7,7 +7,6 @@ use hyper::server::conn::AddrStream;
use hyper::service::{make_service_fn, service_fn};
use hyper::{Body, Request, Response, Server};
-use garage_util::crdt;
use garage_util::data::*;
use garage_util::error::Error as GarageError;
@@ -306,8 +305,7 @@ async fn resolve_bucket(
.as_option()
.ok_or_else(|| Error::Forbidden("Operation is not allowed for this key.".to_string()))?;
- if let Some(crdt::Deletable::Present(bucket_id)) = api_key_params.local_aliases.get(bucket_name)
- {
+ if let Some(Some(bucket_id)) = api_key_params.local_aliases.get(bucket_name) {
Ok(*bucket_id)
} else {
Ok(garage
diff --git a/src/api/s3_bucket.rs b/src/api/s3_bucket.rs
index 785b89dd..24ec6b98 100644
--- a/src/api/s3_bucket.rs
+++ b/src/api/s3_bucket.rs
@@ -65,8 +65,8 @@ pub async fn handle_list_buckets(garage: &Garage, api_key: &Key) -> Result<Respo
if *active {
let alias_ent = garage.bucket_alias_table.get(&EmptyKey, alias).await?;
if let Some(alias_ent) = alias_ent {
- if let Some(alias_p) = alias_ent.state.get().as_option() {
- if alias_p.bucket_id == *bucket_id {
+ if let Some(alias_bucket) = alias_ent.state.get() {
+ if alias_bucket == bucket_id {
aliases.insert(alias_ent.name().to_string(), *bucket_id);
}
}
@@ -78,8 +78,8 @@ pub async fn handle_list_buckets(garage: &Garage, api_key: &Key) -> Result<Respo
}
}
- for (alias, _, id) in key_state.local_aliases.items() {
- if let Some(id) = id.as_option() {
+ for (alias, _, id_opt) in key_state.local_aliases.items() {
+ if let Some(id) = id_opt {
aliases.insert(alias.clone(), *id);
}
}
diff --git a/src/garage/admin.rs b/src/garage/admin.rs
index 0c1e58f8..bca1bc5a 100644
--- a/src/garage/admin.rs
+++ b/src/garage/admin.rs
@@ -140,7 +140,7 @@ impl AdminRpcHandler {
}
if let Some(alias) = self.garage.bucket_alias_table.get(&EmptyKey, name).await? {
- if !alias.state.get().is_deleted() {
+ if alias.state.get().is_some() {
return Err(Error::BadRequest(format!("Bucket {} already exists", name)));
}
}
@@ -229,7 +229,7 @@ impl AdminRpcHandler {
// 2. delete bucket alias
if bucket_alias.is_some() {
helper
- .unset_global_bucket_alias(bucket_id, &query.name)
+ .purge_global_bucket_alias(bucket_id, &query.name)
.await?;
}
@@ -281,7 +281,7 @@ impl AdminRpcHandler {
.unwrap()
.local_aliases
.get(&query.name)
- .map(|a| a.into_option())
+ .cloned()
.flatten()
.ok_or_bad_request("Bucket not found")?;
@@ -484,20 +484,26 @@ impl AdminRpcHandler {
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 Deletable::Present(bucket_id) = to {
+ if let Some(bucket_id) = to {
helper
.unset_local_bucket_alias(*bucket_id, &key.key_id, alias)
.await?;
}
}
- // 2. Delete authorized buckets
+
+ // 2. Remove permissions on all authorized buckets
for (ab_id, _auth) in state.authorized_buckets.items().iter() {
helper
.set_bucket_key_permissions(*ab_id, &key.key_id, BucketKeyPerm::no_permissions())
.await?;
}
+
// 3. Actually delete key
key.state = Deletable::delete();
self.garage.key_table.insert(&key).await?;
diff --git a/src/garage/cli/cmd.rs b/src/garage/cli/cmd.rs
index cca7c401..515f2143 100644
--- a/src/garage/cli/cmd.rs
+++ b/src/garage/cli/cmd.rs
@@ -168,8 +168,8 @@ pub async fn cmd_admin(
println!("List of buckets:");
let mut table = vec![];
for alias in bl {
- if let Some(p) = alias.state.get().as_option() {
- table.push(format!("\t{}\t{:?}", alias.name(), p.bucket_id));
+ if let Some(alias_bucket) = alias.state.get() {
+ table.push(format!("\t{}\t{:?}", alias.name(), alias_bucket));
}
}
format_table(table);
diff --git a/src/garage/cli/util.rs b/src/garage/cli/util.rs
index b4ea14d1..8d31a4c5 100644
--- a/src/garage/cli/util.rs
+++ b/src/garage/cli/util.rs
@@ -34,7 +34,7 @@ pub fn print_key_info(key: &Key, relevant_buckets: &HashMap<Uuid, Bucket>) {
println!("\nKey-specific bucket aliases:");
let mut table = vec![];
for (alias_name, _, alias) in p.local_aliases.items().iter() {
- if let Some(bucket_id) = alias.as_option() {
+ if let Some(bucket_id) = alias {
table.push(format!(
"\t{}\t{}\t{}",
alias_name,
@@ -55,7 +55,7 @@ pub fn print_key_info(key: &Key, relevant_buckets: &HashMap<Uuid, Bucket>) {
.local_aliases
.items()
.iter()
- .filter(|(_, _, a)| a.as_option() == Some(bucket_id))
+ .filter(|(_, _, a)| *a == Some(*bucket_id))
.map(|(a, _, _)| a.clone())
.collect::<Vec<_>>()
.join(", ");
diff --git a/src/model/bucket_alias_table.rs b/src/model/bucket_alias_table.rs
index 45807178..fce03d04 100644
--- a/src/model/bucket_alias_table.rs
+++ b/src/model/bucket_alias_table.rs
@@ -10,32 +10,23 @@ use garage_table::*;
#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
pub struct BucketAlias {
name: String,
- pub state: crdt::Lww<crdt::Deletable<AliasParams>>,
-}
-
-#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug, Serialize, Deserialize)]
-pub struct AliasParams {
- pub bucket_id: Uuid,
-}
-
-impl AutoCrdt for AliasParams {
- const WARN_IF_DIFFERENT: bool = true;
+ pub state: crdt::Lww<Option<Uuid>>,
}
impl BucketAlias {
- pub fn new(name: String, ts: u64, bucket_id: Uuid) -> Option<Self> {
+ pub fn new(name: String, ts: u64, bucket_id: Option<Uuid>) -> Option<Self> {
if !is_valid_bucket_name(&name) {
None
} else {
Some(BucketAlias {
name,
- state: crdt::Lww::raw(ts, crdt::Deletable::present(AliasParams { bucket_id })),
+ state: crdt::Lww::raw(ts, bucket_id),
})
}
}
pub fn is_deleted(&self) -> bool {
- self.state.get().is_deleted()
+ self.state.get().is_none()
}
pub fn name(&self) -> &str {
&self.name
diff --git a/src/model/bucket_table.rs b/src/model/bucket_table.rs
index fef29b62..52c2316c 100644
--- a/src/model/bucket_table.rs
+++ b/src/model/bucket_table.rs
@@ -63,6 +63,7 @@ impl BucketParams {
impl Crdt for BucketParams {
fn merge(&mut self, o: &Self) {
+ self.creation_date = std::cmp::min(self.creation_date, o.creation_date);
self.authorized_keys.merge(&o.authorized_keys);
self.website_config.merge(&o.website_config);
self.aliases.merge(&o.aliases);
diff --git a/src/model/helper/bucket.rs b/src/model/helper/bucket.rs
index 8bc54b3f..52cedb12 100644
--- a/src/model/helper/bucket.rs
+++ b/src/model/helper/bucket.rs
@@ -46,7 +46,7 @@ impl<'a> BucketHelper<'a> {
.bucket_alias_table
.get(&EmptyKey, bucket_name)
.await?
- .map(|x| x.state.get().as_option().map(|x| x.bucket_id))
+ .map(|x| *x.state.get())
.flatten())
}
}
@@ -154,11 +154,11 @@ impl<'a> BucketHelper<'a> {
let alias = self.0.bucket_alias_table.get(&EmptyKey, alias_name).await?;
if let Some(existing_alias) = alias.as_ref() {
- if let Some(p) = existing_alias.state.get().as_option() {
- if p.bucket_id != bucket_id {
+ if let Some(p_bucket) = existing_alias.state.get() {
+ if *p_bucket != bucket_id {
return Err(Error::BadRequest(format!(
"Alias {} already exists and points to different bucket: {:?}",
- alias_name, p.bucket_id
+ alias_name, p_bucket
)));
}
}
@@ -176,10 +176,10 @@ impl<'a> BucketHelper<'a> {
// writes are now done and all writes use timestamp alias_ts
let alias = match alias {
- None => BucketAlias::new(alias_name.clone(), alias_ts, bucket_id)
+ None => BucketAlias::new(alias_name.clone(), alias_ts, Some(bucket_id))
.ok_or_bad_request(format!("{}: {}", alias_name, INVALID_BUCKET_NAME_MESSAGE))?,
Some(mut a) => {
- a.state = Lww::raw(alias_ts, Deletable::present(AliasParams { bucket_id }));
+ a.state = Lww::raw(alias_ts, Some(bucket_id));
a
}
};
@@ -209,13 +209,7 @@ impl<'a> BucketHelper<'a> {
.bucket_alias_table
.get(&EmptyKey, alias_name)
.await?
- .filter(|a| {
- a.state
- .get()
- .as_option()
- .map(|x| x.bucket_id == bucket_id)
- .unwrap_or(false)
- })
+ .filter(|a| a.state.get().map(|x| x == bucket_id).unwrap_or(false))
.ok_or_message(format!(
"Internal error: alias not found or does not point to bucket {:?}",
bucket_id
@@ -244,7 +238,7 @@ impl<'a> BucketHelper<'a> {
// ---- timestamp-ensured causality barrier ----
// writes are now done and all writes use timestamp alias_ts
- alias.state = Lww::raw(alias_ts, Deletable::delete());
+ alias.state = Lww::raw(alias_ts, None);
self.0.bucket_alias_table.insert(&alias).await?;
bucket_state.aliases = LwwMap::raw_item(alias_name.clone(), alias_ts, false);
@@ -253,6 +247,51 @@ impl<'a> BucketHelper<'a> {
Ok(())
}
+ /// Ensures a bucket does not have a certain global alias.
+ /// Contrarily to unset_global_bucket_alias, this does not
+ /// fail on any condition other than:
+ /// - bucket cannot be found (its fine if it is in deleted state)
+ /// - alias cannot be found (its fine if it points to nothing or
+ /// to another bucket)
+ pub async fn purge_global_bucket_alias(
+ &self,
+ bucket_id: Uuid,
+ alias_name: &String,
+ ) -> Result<(), Error> {
+ let mut bucket = self.get_internal_bucket(bucket_id).await?;
+
+ let mut alias = self
+ .0
+ .bucket_alias_table
+ .get(&EmptyKey, alias_name)
+ .await?
+ .ok_or_message(format!("Alias {} not found", alias_name))?;
+
+ // Checks ok, remove alias
+ let alias_ts = match bucket.state.as_option() {
+ Some(bucket_state) => increment_logical_clock_2(
+ alias.state.timestamp(),
+ bucket_state.aliases.get_timestamp(alias_name),
+ ),
+ None => increment_logical_clock(alias.state.timestamp()),
+ };
+
+ // ---- timestamp-ensured causality barrier ----
+ // writes are now done and all writes use timestamp alias_ts
+
+ if alias.state.get() == &Some(bucket_id) {
+ alias.state = Lww::raw(alias_ts, None);
+ self.0.bucket_alias_table.insert(&alias).await?;
+ }
+
+ if let Some(mut bucket_state) = bucket.state.as_option_mut() {
+ bucket_state.aliases = LwwMap::raw_item(alias_name.clone(), alias_ts, false);
+ self.0.bucket_table.insert(&bucket).await?;
+ }
+
+ Ok(())
+ }
+
/// Sets a new alias for a bucket in the local namespace of a key.
/// This function fails if:
/// - alias name is not valid according to S3 spec
@@ -277,7 +316,7 @@ impl<'a> BucketHelper<'a> {
let mut key_param = key.state.as_option_mut().unwrap();
- if let Some(Deletable::Present(existing_alias)) = key_param.local_aliases.get(alias_name) {
+ if let Some(Some(existing_alias)) = key_param.local_aliases.get(alias_name) {
if *existing_alias != bucket_id {
return Err(Error::BadRequest(format!("Alias {} already exists in namespace of key {} and points to different bucket: {:?}", alias_name, key.key_id, existing_alias)));
}
@@ -301,8 +340,7 @@ impl<'a> BucketHelper<'a> {
// ---- timestamp-ensured causality barrier ----
// writes are now done and all writes use timestamp alias_ts
- key_param.local_aliases =
- LwwMap::raw_item(alias_name.clone(), alias_ts, Deletable::present(bucket_id));
+ key_param.local_aliases = LwwMap::raw_item(alias_name.clone(), alias_ts, Some(bucket_id));
self.0.key_table.insert(&key).await?;
bucket_p.local_aliases = LwwMap::raw_item(bucket_p_local_alias_key, alias_ts, true);
@@ -334,8 +372,8 @@ impl<'a> BucketHelper<'a> {
.unwrap()
.local_aliases
.get(alias_name)
- .map(|x| x.as_option())
- .flatten() != Some(&bucket_id)
+ .cloned()
+ .flatten() != Some(bucket_id)
{
return Err(GarageError::Message(format!(
"Bucket {:?} does not have alias {} in namespace of key {}",
@@ -372,8 +410,7 @@ impl<'a> BucketHelper<'a> {
// ---- timestamp-ensured causality barrier ----
// writes are now done and all writes use timestamp alias_ts
- key_param.local_aliases =
- LwwMap::raw_item(alias_name.clone(), alias_ts, Deletable::delete());
+ key_param.local_aliases = LwwMap::raw_item(alias_name.clone(), alias_ts, None);
self.0.key_table.insert(&key).await?;
bucket_p.local_aliases = LwwMap::raw_item(bucket_p_local_alias_key, alias_ts, false);
diff --git a/src/model/key_table.rs b/src/model/key_table.rs
index 7afa0337..c25f2da4 100644
--- a/src/model/key_table.rs
+++ b/src/model/key_table.rs
@@ -31,7 +31,7 @@ pub struct Key {
pub struct KeyParams {
pub allow_create_bucket: crdt::Lww<bool>,
pub authorized_buckets: crdt::Map<Uuid, BucketKeyPerm>,
- pub local_aliases: crdt::LwwMap<String, crdt::Deletable<Uuid>>,
+ pub local_aliases: crdt::LwwMap<String, Option<Uuid>>,
}
impl KeyParams {
diff --git a/src/util/crdt/crdt.rs b/src/util/crdt/crdt.rs
index 00bb2e3b..06876897 100644
--- a/src/util/crdt/crdt.rs
+++ b/src/util/crdt/crdt.rs
@@ -1,5 +1,3 @@
-use crate::data::*;
-
/// Definition of a CRDT - all CRDT Rust types implement this.
///
/// A CRDT is defined as a merge operator that respects a certain set of axioms.
@@ -87,7 +85,3 @@ impl AutoCrdt for String {
impl AutoCrdt for bool {
const WARN_IF_DIFFERENT: bool = true;
}
-
-impl AutoCrdt for FixedBytes32 {
- const WARN_IF_DIFFERENT: bool = true;
-}
diff --git a/src/util/data.rs b/src/util/data.rs
index 6b8ee527..f0744307 100644
--- a/src/util/data.rs
+++ b/src/util/data.rs
@@ -5,7 +5,7 @@ use serde::{Deserialize, Deserializer, Serialize, Serializer};
use std::fmt;
/// An array of 32 bytes
-#[derive(Default, PartialOrd, Ord, Clone, Hash, PartialEq, Copy)]
+#[derive(Default, Clone, Hash, PartialEq, Eq, PartialOrd, Ord, Copy)]
pub struct FixedBytes32([u8; 32]);
impl From<[u8; 32]> for FixedBytes32 {
@@ -20,8 +20,6 @@ impl std::convert::AsRef<[u8]> for FixedBytes32 {
}
}
-impl Eq for FixedBytes32 {}
-
impl fmt::Debug for FixedBytes32 {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}…", hex::encode(&self.0[..8]))
diff --git a/src/web/web_server.rs b/src/web/web_server.rs
index cc6eed57..f13f289e 100644
--- a/src/web/web_server.rs
+++ b/src/web/web_server.rs
@@ -86,9 +86,8 @@ async fn serve_file(garage: Arc<Garage>, req: Request<Body>) -> Result<Response<
.bucket_alias_table
.get(&EmptyKey, &bucket_name.to_string())
.await?
- .map(|x| x.state.take().into_option())
+ .map(|x| x.state.take())
.flatten()
- .map(|param| param.bucket_id)
.ok_or(Error::NotFound)?;
// Check bucket isn't deleted and has website access enabled
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 12:44:32 +0000