forked from Deuxfleurs/garage
Merge pull request 'Add node-global lock for bucket/key operations (fix #723)' (#728) from lock-createbucket into main
Reviewed-on: Deuxfleurs/garage#728
This commit is contained in:
commit
74d0c47f21
12 changed files with 511 additions and 476 deletions
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@ -273,6 +273,8 @@ pub async fn handle_create_bucket(
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) -> Result<Response<ResBody>, Error> {
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let req = parse_json_body::<CreateBucketRequest, _, Error>(req).await?;
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let helper = garage.locked_helper().await;
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if let Some(ga) = &req.global_alias {
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if !is_valid_bucket_name(ga) {
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return Err(Error::bad_request(format!(
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@ -296,10 +298,7 @@ pub async fn handle_create_bucket(
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)));
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}
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let key = garage
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.key_helper()
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.get_existing_key(&la.access_key_id)
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.await?;
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let key = helper.key().get_existing_key(&la.access_key_id).await?;
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let state = key.state.as_option().unwrap();
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if matches!(state.local_aliases.get(&la.alias), Some(_)) {
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return Err(Error::bad_request("Local alias already exists"));
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@ -310,21 +309,16 @@ pub async fn handle_create_bucket(
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garage.bucket_table.insert(&bucket).await?;
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if let Some(ga) = &req.global_alias {
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garage
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.bucket_helper()
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.set_global_bucket_alias(bucket.id, ga)
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.await?;
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helper.set_global_bucket_alias(bucket.id, ga).await?;
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}
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if let Some(la) = &req.local_alias {
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garage
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.bucket_helper()
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helper
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.set_local_bucket_alias(bucket.id, &la.access_key_id, &la.alias)
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.await?;
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if la.allow.read || la.allow.write || la.allow.owner {
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garage
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.bucket_helper()
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helper
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.set_bucket_key_permissions(
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bucket.id,
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&la.access_key_id,
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@ -362,15 +356,15 @@ pub async fn handle_delete_bucket(
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garage: &Arc<Garage>,
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id: String,
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) -> Result<Response<ResBody>, Error> {
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let helper = garage.bucket_helper();
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let helper = garage.locked_helper().await;
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let bucket_id = parse_bucket_id(&id)?;
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let mut bucket = helper.get_existing_bucket(bucket_id).await?;
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let mut bucket = helper.bucket().get_existing_bucket(bucket_id).await?;
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let state = bucket.state.as_option().unwrap();
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// Check bucket is empty
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if !helper.is_bucket_empty(bucket_id).await? {
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if !helper.bucket().is_bucket_empty(bucket_id).await? {
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return Err(CommonError::BucketNotEmpty.into());
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}
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@ -476,18 +470,14 @@ pub async fn handle_bucket_change_key_perm(
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) -> Result<Response<ResBody>, Error> {
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let req = parse_json_body::<BucketKeyPermChangeRequest, _, Error>(req).await?;
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let helper = garage.locked_helper().await;
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let bucket_id = parse_bucket_id(&req.bucket_id)?;
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let bucket = garage
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.bucket_helper()
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.get_existing_bucket(bucket_id)
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.await?;
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let bucket = helper.bucket().get_existing_bucket(bucket_id).await?;
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let state = bucket.state.as_option().unwrap();
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let key = garage
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.key_helper()
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.get_existing_key(&req.access_key_id)
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.await?;
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let key = helper.key().get_existing_key(&req.access_key_id).await?;
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let mut perm = state
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.authorized_keys
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@ -505,8 +495,7 @@ pub async fn handle_bucket_change_key_perm(
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perm.allow_owner = new_perm_flag;
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}
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garage
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.bucket_helper()
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helper
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.set_bucket_key_permissions(bucket.id, &key.key_id, perm)
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.await?;
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@ -530,10 +519,9 @@ pub async fn handle_global_alias_bucket(
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) -> Result<Response<ResBody>, Error> {
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let bucket_id = parse_bucket_id(&bucket_id)?;
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garage
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.bucket_helper()
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.set_global_bucket_alias(bucket_id, &alias)
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.await?;
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let helper = garage.locked_helper().await;
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helper.set_global_bucket_alias(bucket_id, &alias).await?;
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bucket_info_results(garage, bucket_id).await
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}
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@ -545,10 +533,9 @@ pub async fn handle_global_unalias_bucket(
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) -> Result<Response<ResBody>, Error> {
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let bucket_id = parse_bucket_id(&bucket_id)?;
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garage
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.bucket_helper()
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.unset_global_bucket_alias(bucket_id, &alias)
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.await?;
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let helper = garage.locked_helper().await;
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helper.unset_global_bucket_alias(bucket_id, &alias).await?;
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bucket_info_results(garage, bucket_id).await
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}
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@ -561,8 +548,9 @@ pub async fn handle_local_alias_bucket(
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) -> Result<Response<ResBody>, Error> {
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let bucket_id = parse_bucket_id(&bucket_id)?;
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garage
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.bucket_helper()
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let helper = garage.locked_helper().await;
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helper
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.set_local_bucket_alias(bucket_id, &access_key_id, &alias)
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.await?;
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@ -577,8 +565,9 @@ pub async fn handle_local_unalias_bucket(
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) -> Result<Response<ResBody>, Error> {
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let bucket_id = parse_bucket_id(&bucket_id)?;
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garage
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.bucket_helper()
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let helper = garage.locked_helper().await;
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helper
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.unset_local_bucket_alias(bucket_id, &access_key_id, &alias)
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.await?;
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@ -151,11 +151,11 @@ pub async fn handle_delete_key(
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garage: &Arc<Garage>,
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id: String,
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) -> Result<Response<ResBody>, Error> {
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let mut key = garage.key_helper().get_existing_key(&id).await?;
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let helper = garage.locked_helper().await;
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key.state.as_option().unwrap();
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let mut key = helper.key().get_existing_key(&id).await?;
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garage.key_helper().delete_key(&mut key).await?;
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helper.delete_key(&mut key).await?;
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Ok(Response::builder()
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.status(StatusCode::NO_CONTENT)
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@ -148,7 +148,14 @@ impl ApiHandler for S3ApiServer {
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// Special code path for CreateBucket API endpoint
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if let Endpoint::CreateBucket {} = endpoint {
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return handle_create_bucket(&garage, req, content_sha256, api_key, bucket_name).await;
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return handle_create_bucket(
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&garage,
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req,
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content_sha256,
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&api_key.key_id,
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bucket_name,
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)
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.await;
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}
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let bucket_id = garage
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@ -261,7 +268,7 @@ impl ApiHandler for S3ApiServer {
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Ok(response)
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}
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Endpoint::DeleteBucket {} => {
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handle_delete_bucket(&garage, bucket_id, bucket_name, api_key).await
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handle_delete_bucket(&garage, bucket_id, bucket_name, &api_key.key_id).await
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}
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Endpoint::GetBucketLocation {} => handle_get_bucket_location(garage),
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Endpoint::GetBucketVersioning {} => handle_get_bucket_versioning(),
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@ -122,7 +122,7 @@ pub async fn handle_create_bucket(
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garage: &Garage,
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req: Request<ReqBody>,
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content_sha256: Option<Hash>,
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api_key: Key,
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api_key_id: &String,
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bucket_name: String,
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) -> Result<Response<ResBody>, Error> {
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let body = BodyExt::collect(req.into_body()).await?.to_bytes();
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@ -144,16 +144,18 @@ pub async fn handle_create_bucket(
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}
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}
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let key_params = api_key
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.params()
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.ok_or_internal_error("Key should not be deleted at this point")?;
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let helper = garage.locked_helper().await;
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// refetch API key after taking lock to ensure up-to-date data
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let api_key = helper.key().get_existing_key(api_key_id).await?;
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let key_params = api_key.params().unwrap();
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let existing_bucket = if let Some(Some(bucket_id)) = key_params.local_aliases.get(&bucket_name)
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{
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Some(*bucket_id)
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} else {
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garage
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.bucket_helper()
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helper
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.bucket()
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.resolve_global_bucket_name(&bucket_name)
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.await?
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};
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@ -187,13 +189,11 @@ pub async fn handle_create_bucket(
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let bucket = Bucket::new();
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garage.bucket_table.insert(&bucket).await?;
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garage
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.bucket_helper()
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helper
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.set_bucket_key_permissions(bucket.id, &api_key.key_id, BucketKeyPerm::ALL_PERMISSIONS)
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.await?;
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garage
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.bucket_helper()
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helper
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.set_local_bucket_alias(bucket.id, &api_key.key_id, &bucket_name)
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.await?;
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}
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@ -208,18 +208,16 @@ pub async fn handle_delete_bucket(
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garage: &Garage,
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bucket_id: Uuid,
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bucket_name: String,
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api_key: Key,
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api_key_id: &String,
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) -> Result<Response<ResBody>, Error> {
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let key_params = api_key
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.params()
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.ok_or_internal_error("Key should not be deleted at this point")?;
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let helper = garage.locked_helper().await;
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let api_key = helper.key().get_existing_key(api_key_id).await?;
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let key_params = api_key.params().unwrap();
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let is_local_alias = matches!(key_params.local_aliases.get(&bucket_name), Some(Some(_)));
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let mut bucket = garage
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.bucket_helper()
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.get_existing_bucket(bucket_id)
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.await?;
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let mut bucket = helper.bucket().get_existing_bucket(bucket_id).await?;
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let bucket_state = bucket.state.as_option().unwrap();
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// If the bucket has no other aliases, this is a true deletion.
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@ -243,28 +241,25 @@ pub async fn handle_delete_bucket(
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// Delete bucket
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// Check bucket is empty
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if !garage.bucket_helper().is_bucket_empty(bucket_id).await? {
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if !helper.bucket().is_bucket_empty(bucket_id).await? {
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return Err(CommonError::BucketNotEmpty.into());
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}
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// --- done checking, now commit ---
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// 1. delete bucket alias
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if is_local_alias {
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garage
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.bucket_helper()
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helper
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.unset_local_bucket_alias(bucket_id, &api_key.key_id, &bucket_name)
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.await?;
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} else {
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garage
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.bucket_helper()
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helper
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.unset_global_bucket_alias(bucket_id, &bucket_name)
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.await?;
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}
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// 2. delete authorization from keys that had access
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for (key_id, _) in bucket.authorized_keys() {
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garage
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.bucket_helper()
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helper
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.set_bucket_key_permissions(bucket.id, key_id, BucketKeyPerm::NO_PERMISSIONS)
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.await?;
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}
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@ -274,14 +269,12 @@ pub async fn handle_delete_bucket(
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garage.bucket_table.insert(&bucket).await?;
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} else if is_local_alias {
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// Just unalias
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garage
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.bucket_helper()
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helper
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.unset_local_bucket_alias(bucket_id, &api_key.key_id, &bucket_name)
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.await?;
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} else {
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// Just unalias (but from global namespace)
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garage
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.bucket_helper()
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helper
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.unset_global_bucket_alias(bucket_id, &bucket_name)
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.await?;
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}
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|
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@ -134,6 +134,8 @@ impl AdminRpcHandler {
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)));
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}
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let helper = self.garage.locked_helper().await;
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if let Some(alias) = self.garage.bucket_alias_table.get(&EmptyKey, name).await? {
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if alias.state.get().is_some() {
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return Err(Error::BadRequest(format!("Bucket {} already exists", name)));
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@ -145,18 +147,16 @@ impl AdminRpcHandler {
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let bucket = Bucket::new();
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self.garage.bucket_table.insert(&bucket).await?;
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self.garage
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.bucket_helper()
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.set_global_bucket_alias(bucket.id, name)
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.await?;
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helper.set_global_bucket_alias(bucket.id, name).await?;
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Ok(AdminRpc::Ok(format!("Bucket {} was created.", name)))
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}
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async fn handle_delete_bucket(&self, query: &DeleteBucketOpt) -> Result<AdminRpc, Error> {
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let helper = self.garage.bucket_helper();
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let helper = self.garage.locked_helper().await;
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let bucket_id = helper
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.bucket()
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.resolve_global_bucket_name(&query.name)
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.await?
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.ok_or_bad_request("Bucket not found")?;
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|
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@ -174,7 +174,7 @@ impl AdminRpcHandler {
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.await?;
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// Check bucket doesn't have other aliases
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let mut bucket = helper.get_existing_bucket(bucket_id).await?;
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let mut bucket = helper.bucket().get_existing_bucket(bucket_id).await?;
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let bucket_state = bucket.state.as_option().unwrap();
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if bucket_state
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.aliases
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|
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@ -195,7 +195,7 @@ impl AdminRpcHandler {
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}
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// Check bucket is empty
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if !helper.is_bucket_empty(bucket_id).await? {
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if !helper.bucket().is_bucket_empty(bucket_id).await? {
|
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return Err(Error::BadRequest(format!(
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"Bucket {} is not empty",
|
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query.name
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|
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@ -231,16 +231,16 @@ impl AdminRpcHandler {
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}
|
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|
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async fn handle_alias_bucket(&self, query: &AliasBucketOpt) -> Result<AdminRpc, Error> {
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let helper = self.garage.bucket_helper();
|
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let key_helper = self.garage.key_helper();
|
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let helper = self.garage.locked_helper().await;
|
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|
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let bucket_id = helper
|
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.bucket()
|
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.resolve_global_bucket_name(&query.existing_bucket)
|
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.await?
|
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.ok_or_bad_request("Bucket not found")?;
|
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|
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if let Some(key_pattern) = &query.local {
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let key = key_helper.get_existing_matching_key(key_pattern).await?;
|
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let key = helper.key().get_existing_matching_key(key_pattern).await?;
|
||||
|
||||
helper
|
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.set_local_bucket_alias(bucket_id, &key.key_id, &query.new_name)
|
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|
|
@ -261,11 +261,10 @@ impl AdminRpcHandler {
|
|||
}
|
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|
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async fn handle_unalias_bucket(&self, query: &UnaliasBucketOpt) -> Result<AdminRpc, Error> {
|
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let helper = self.garage.bucket_helper();
|
||||
let key_helper = self.garage.key_helper();
|
||||
let helper = self.garage.locked_helper().await;
|
||||
|
||||
if let Some(key_pattern) = &query.local {
|
||||
let key = key_helper.get_existing_matching_key(key_pattern).await?;
|
||||
let key = helper.key().get_existing_matching_key(key_pattern).await?;
|
||||
|
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let bucket_id = key
|
||||
.state
|
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|
|
@ -287,6 +286,7 @@ impl AdminRpcHandler {
|
|||
)))
|
||||
} else {
|
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let bucket_id = helper
|
||||
.bucket()
|
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.resolve_global_bucket_name(&query.name)
|
||||
.await?
|
||||
.ok_or_bad_request("Bucket not found")?;
|
||||
|
|
@ -303,14 +303,15 @@ impl AdminRpcHandler {
|
|||
}
|
||||
|
||||
async fn handle_bucket_allow(&self, query: &PermBucketOpt) -> Result<AdminRpc, Error> {
|
||||
let helper = self.garage.bucket_helper();
|
||||
let key_helper = self.garage.key_helper();
|
||||
let helper = self.garage.locked_helper().await;
|
||||
|
||||
let bucket_id = helper
|
||||
.bucket()
|
||||
.resolve_global_bucket_name(&query.bucket)
|
||||
.await?
|
||||
.ok_or_bad_request("Bucket not found")?;
|
||||
let key = key_helper
|
||||
let key = helper
|
||||
.key()
|
||||
.get_existing_matching_key(&query.key_pattern)
|
||||
.await?;
|
||||
|
||||
|
|
@ -338,14 +339,15 @@ impl AdminRpcHandler {
|
|||
}
|
||||
|
||||
async fn handle_bucket_deny(&self, query: &PermBucketOpt) -> Result<AdminRpc, Error> {
|
||||
let helper = self.garage.bucket_helper();
|
||||
let key_helper = self.garage.key_helper();
|
||||
let helper = self.garage.locked_helper().await;
|
||||
|
||||
let bucket_id = helper
|
||||
.bucket()
|
||||
.resolve_global_bucket_name(&query.bucket)
|
||||
.await?
|
||||
.ok_or_bad_request("Bucket not found")?;
|
||||
let key = key_helper
|
||||
let key = helper
|
||||
.key()
|
||||
.get_existing_matching_key(&query.key_pattern)
|
||||
.await?;
|
||||
|
||||
|
|
|
|||
|
|
@ -76,9 +76,10 @@ impl AdminRpcHandler {
|
|||
}
|
||||
|
||||
async fn handle_delete_key(&self, query: &KeyDeleteOpt) -> Result<AdminRpc, Error> {
|
||||
let key_helper = self.garage.key_helper();
|
||||
let helper = self.garage.locked_helper().await;
|
||||
|
||||
let mut key = key_helper
|
||||
let mut key = helper
|
||||
.key()
|
||||
.get_existing_matching_key(&query.key_pattern)
|
||||
.await?;
|
||||
|
||||
|
|
@ -88,7 +89,7 @@ impl AdminRpcHandler {
|
|||
));
|
||||
}
|
||||
|
||||
key_helper.delete_key(&mut key).await?;
|
||||
helper.delete_key(&mut key).await?;
|
||||
|
||||
Ok(AdminRpc::Ok(format!(
|
||||
"Key {} was deleted successfully.",
|
||||
|
|
|
|||
|
|
@ -56,6 +56,9 @@ pub struct Garage {
|
|||
/// Table containing api keys
|
||||
pub key_table: Arc<Table<KeyTable, TableFullReplication>>,
|
||||
|
||||
/// Lock to prevent concurrent modification of buckets and access keys
|
||||
bucket_lock: tokio::sync::Mutex<()>,
|
||||
|
||||
/// Table containing S3 objects
|
||||
pub object_table: Arc<Table<ObjectTable, TableShardedReplication>>,
|
||||
/// Counting table containing object counters
|
||||
|
|
@ -343,6 +346,7 @@ impl Garage {
|
|||
bucket_table,
|
||||
bucket_alias_table,
|
||||
key_table,
|
||||
bucket_lock: tokio::sync::Mutex::new(()),
|
||||
object_table,
|
||||
object_counter_table,
|
||||
mpu_table,
|
||||
|
|
@ -385,6 +389,11 @@ impl Garage {
|
|||
pub fn key_helper(&self) -> helper::key::KeyHelper {
|
||||
helper::key::KeyHelper(self)
|
||||
}
|
||||
|
||||
pub async fn locked_helper(&self) -> helper::locked::LockedHelper {
|
||||
let lock = self.bucket_lock.lock().await;
|
||||
helper::locked::LockedHelper(self, lock)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(feature = "k2v")]
|
||||
|
|
|
|||
|
|
@ -1,19 +1,15 @@
|
|||
use std::time::Duration;
|
||||
|
||||
use garage_util::crdt::*;
|
||||
use garage_util::data::*;
|
||||
use garage_util::error::{Error as GarageError, OkOrMessage};
|
||||
use garage_util::error::OkOrMessage;
|
||||
use garage_util::time::*;
|
||||
|
||||
use garage_table::util::*;
|
||||
|
||||
use crate::bucket_alias_table::*;
|
||||
use crate::bucket_table::*;
|
||||
use crate::garage::Garage;
|
||||
use crate::helper::error::*;
|
||||
use crate::helper::key::KeyHelper;
|
||||
use crate::key_table::*;
|
||||
use crate::permission::BucketKeyPerm;
|
||||
use crate::s3::object_table::*;
|
||||
|
||||
pub struct BucketHelper<'a>(pub(crate) &'a Garage);
|
||||
|
|
@ -96,341 +92,7 @@ impl<'a> BucketHelper<'a> {
|
|||
.ok_or_else(|| Error::NoSuchBucket(hex::encode(bucket_id)))
|
||||
}
|
||||
|
||||
/// Sets a new alias for a bucket in global namespace.
|
||||
/// This function fails if:
|
||||
/// - alias name is not valid according to S3 spec
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - alias already exists and points to another bucket
|
||||
pub async fn set_global_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
if !is_valid_bucket_name(alias_name) {
|
||||
return Err(Error::InvalidBucketName(alias_name.to_string()));
|
||||
}
|
||||
|
||||
let mut bucket = self.get_existing_bucket(bucket_id).await?;
|
||||
|
||||
let alias = self.0.bucket_alias_table.get(&EmptyKey, alias_name).await?;
|
||||
|
||||
if let Some(existing_alias) = alias.as_ref() {
|
||||
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
|
||||
)));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Checks ok, add alias
|
||||
let bucket_p = bucket.state.as_option_mut().unwrap();
|
||||
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
bucket_p.aliases.get_timestamp(alias_name),
|
||||
alias.as_ref().map(|a| a.state.timestamp()).unwrap_or(0),
|
||||
);
|
||||
|
||||
// ---- timestamp-ensured causality barrier ----
|
||||
// writes are now done and all writes use timestamp alias_ts
|
||||
|
||||
let alias = match alias {
|
||||
None => BucketAlias::new(alias_name.clone(), alias_ts, Some(bucket_id))
|
||||
.ok_or_else(|| Error::InvalidBucketName(alias_name.clone()))?,
|
||||
Some(mut a) => {
|
||||
a.state = Lww::raw(alias_ts, Some(bucket_id));
|
||||
a
|
||||
}
|
||||
};
|
||||
self.0.bucket_alias_table.insert(&alias).await?;
|
||||
|
||||
bucket_p.aliases = LwwMap::raw_item(alias_name.clone(), alias_ts, true);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Unsets an alias for a bucket in global namespace.
|
||||
/// This function fails if:
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - alias does not exist or maps to another bucket (-> internal error)
|
||||
/// - bucket has no other aliases (global or local)
|
||||
pub async fn unset_global_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
let mut bucket = self.get_existing_bucket(bucket_id).await?;
|
||||
let bucket_state = bucket.state.as_option_mut().unwrap();
|
||||
|
||||
let mut alias = self
|
||||
.0
|
||||
.bucket_alias_table
|
||||
.get(&EmptyKey, alias_name)
|
||||
.await?
|
||||
.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
|
||||
))?;
|
||||
|
||||
let has_other_global_aliases = bucket_state
|
||||
.aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|(name, _, active)| name != alias_name && *active);
|
||||
let has_other_local_aliases = bucket_state
|
||||
.local_aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|(_, _, active)| *active);
|
||||
if !has_other_global_aliases && !has_other_local_aliases {
|
||||
return Err(Error::BadRequest(format!("Bucket {} doesn't have other aliases, please delete it instead of just unaliasing.", alias_name)));
|
||||
}
|
||||
|
||||
// Checks ok, remove alias
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
alias.state.timestamp(),
|
||||
bucket_state.aliases.get_timestamp(alias_name),
|
||||
);
|
||||
|
||||
// ---- timestamp-ensured causality barrier ----
|
||||
// writes are now done and all writes use timestamp alias_ts
|
||||
|
||||
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);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
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_else(|| Error::NoSuchBucket(alias_name.to_string()))?;
|
||||
|
||||
// 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(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
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - key does not exist or is deleted
|
||||
/// - alias already exists and points to another bucket
|
||||
pub async fn set_local_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
key_id: &String,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
let key_helper = KeyHelper(self.0);
|
||||
|
||||
if !is_valid_bucket_name(alias_name) {
|
||||
return Err(Error::InvalidBucketName(alias_name.to_string()));
|
||||
}
|
||||
|
||||
let mut bucket = self.get_existing_bucket(bucket_id).await?;
|
||||
let mut key = key_helper.get_existing_key(key_id).await?;
|
||||
|
||||
let key_param = key.state.as_option_mut().unwrap();
|
||||
|
||||
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)));
|
||||
}
|
||||
}
|
||||
|
||||
// Checks ok, add alias
|
||||
let bucket_p = bucket.state.as_option_mut().unwrap();
|
||||
let bucket_p_local_alias_key = (key.key_id.clone(), alias_name.clone());
|
||||
|
||||
// Calculate the timestamp to assign to this aliasing in the two local_aliases maps
|
||||
// (the one from key to bucket, and the reverse one stored in the bucket iself)
|
||||
// so that merges on both maps in case of a concurrent operation resolve
|
||||
// to the same alias being set
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
key_param.local_aliases.get_timestamp(alias_name),
|
||||
bucket_p
|
||||
.local_aliases
|
||||
.get_timestamp(&bucket_p_local_alias_key),
|
||||
);
|
||||
|
||||
// ---- 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, 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);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Unsets an alias for a bucket in the local namespace of a key.
|
||||
/// This function fails if:
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - key does not exist or is deleted
|
||||
/// - alias does not exist or maps to another bucket (-> internal error)
|
||||
/// - bucket has no other aliases (global or local)
|
||||
pub async fn unset_local_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
key_id: &String,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
let key_helper = KeyHelper(self.0);
|
||||
|
||||
let mut bucket = self.get_existing_bucket(bucket_id).await?;
|
||||
let mut key = key_helper.get_existing_key(key_id).await?;
|
||||
|
||||
let bucket_p = bucket.state.as_option_mut().unwrap();
|
||||
|
||||
if key
|
||||
.state
|
||||
.as_option()
|
||||
.unwrap()
|
||||
.local_aliases
|
||||
.get(alias_name)
|
||||
.cloned()
|
||||
.flatten() != Some(bucket_id)
|
||||
{
|
||||
return Err(GarageError::Message(format!(
|
||||
"Bucket {:?} does not have alias {} in namespace of key {}",
|
||||
bucket_id, alias_name, key_id
|
||||
))
|
||||
.into());
|
||||
}
|
||||
|
||||
let has_other_global_aliases = bucket_p
|
||||
.aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|(_, _, active)| *active);
|
||||
let has_other_local_aliases = bucket_p
|
||||
.local_aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|((k, n), _, active)| *k == key.key_id && n == alias_name && *active);
|
||||
if !has_other_global_aliases && !has_other_local_aliases {
|
||||
return Err(Error::BadRequest(format!("Bucket {} doesn't have other aliases, please delete it instead of just unaliasing.", alias_name)));
|
||||
}
|
||||
|
||||
// Checks ok, remove alias
|
||||
let key_param = key.state.as_option_mut().unwrap();
|
||||
let bucket_p_local_alias_key = (key.key_id.clone(), alias_name.clone());
|
||||
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
key_param.local_aliases.get_timestamp(alias_name),
|
||||
bucket_p
|
||||
.local_aliases
|
||||
.get_timestamp(&bucket_p_local_alias_key),
|
||||
);
|
||||
|
||||
// ---- 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, None);
|
||||
self.0.key_table.insert(&key).await?;
|
||||
|
||||
bucket_p.local_aliases = LwwMap::raw_item(bucket_p_local_alias_key, alias_ts, false);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Sets permissions for a key on a bucket.
|
||||
/// This function fails if:
|
||||
/// - bucket or key cannot be found at all (its ok if they are in deleted state)
|
||||
/// - bucket or key is in deleted state and we are trying to set permissions other than "deny
|
||||
/// all"
|
||||
pub async fn set_bucket_key_permissions(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
key_id: &String,
|
||||
mut perm: BucketKeyPerm,
|
||||
) -> Result<(), Error> {
|
||||
let key_helper = KeyHelper(self.0);
|
||||
|
||||
let mut bucket = self.get_internal_bucket(bucket_id).await?;
|
||||
let mut key = key_helper.get_internal_key(key_id).await?;
|
||||
|
||||
if let Some(bstate) = bucket.state.as_option() {
|
||||
if let Some(kp) = bstate.authorized_keys.get(key_id) {
|
||||
perm.timestamp = increment_logical_clock_2(perm.timestamp, kp.timestamp);
|
||||
}
|
||||
} else if perm.is_any() {
|
||||
return Err(Error::BadRequest(
|
||||
"Trying to give permissions on a deleted bucket".into(),
|
||||
));
|
||||
}
|
||||
|
||||
if let Some(kstate) = key.state.as_option() {
|
||||
if let Some(bp) = kstate.authorized_buckets.get(&bucket_id) {
|
||||
perm.timestamp = increment_logical_clock_2(perm.timestamp, bp.timestamp);
|
||||
}
|
||||
} else if perm.is_any() {
|
||||
return Err(Error::BadRequest(
|
||||
"Trying to give permissions to a deleted key".into(),
|
||||
));
|
||||
}
|
||||
|
||||
// ---- timestamp-ensured causality barrier ----
|
||||
|
||||
if let Some(bstate) = bucket.state.as_option_mut() {
|
||||
bstate.authorized_keys = Map::put_mutator(key_id.clone(), perm);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
}
|
||||
|
||||
if let Some(kstate) = key.state.as_option_mut() {
|
||||
kstate.authorized_buckets = Map::put_mutator(bucket_id, perm);
|
||||
self.0.key_table.insert(&key).await?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
// ----
|
||||
|
||||
pub async fn is_bucket_empty(&self, bucket_id: Uuid) -> Result<bool, Error> {
|
||||
let objects = self
|
||||
|
|
|
|||
|
|
@ -1,12 +1,9 @@
|
|||
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);
|
||||
|
||||
|
|
@ -65,38 +62,4 @@ impl<'a> KeyHelper<'a> {
|
|||
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(())
|
||||
}
|
||||
}
|
||||
|
|
|
|||
410
src/model/helper/locked.rs
Normal file
410
src/model/helper/locked.rs
Normal file
|
|
@ -0,0 +1,410 @@
|
|||
use garage_util::crdt::*;
|
||||
use garage_util::data::*;
|
||||
use garage_util::error::{Error as GarageError, OkOrMessage};
|
||||
use garage_util::time::*;
|
||||
|
||||
use garage_table::util::*;
|
||||
|
||||
use crate::bucket_alias_table::*;
|
||||
use crate::garage::Garage;
|
||||
use crate::helper::bucket::BucketHelper;
|
||||
use crate::helper::error::*;
|
||||
use crate::helper::key::KeyHelper;
|
||||
use crate::key_table::*;
|
||||
use crate::permission::BucketKeyPerm;
|
||||
|
||||
/// A LockedHelper is the mandatory struct to hold when doing operations
|
||||
/// that modify access keys or bucket aliases. This structure takes
|
||||
/// a lock to a unit value that is in the globally-shared Garage struct.
|
||||
///
|
||||
/// This avoid several concurrent requests to modify the list of buckets
|
||||
/// and aliases at the same time, ending up in inconsistent states.
|
||||
/// This DOES NOT FIX THE FUNDAMENTAL ISSUE as CreateBucket requests handled
|
||||
/// by different API nodes can still break the cluster, but it is a first
|
||||
/// fix that allows consistency to be maintained if all such requests are
|
||||
/// directed to a single node, which is doable for many deployments.
|
||||
///
|
||||
/// See issues: #649, #723
|
||||
pub struct LockedHelper<'a>(
|
||||
pub(crate) &'a Garage,
|
||||
pub(crate) tokio::sync::MutexGuard<'a, ()>,
|
||||
);
|
||||
|
||||
#[allow(clippy::ptr_arg)]
|
||||
impl<'a> LockedHelper<'a> {
|
||||
pub fn bucket(&self) -> BucketHelper<'a> {
|
||||
BucketHelper(self.0)
|
||||
}
|
||||
|
||||
pub fn key(&self) -> KeyHelper<'a> {
|
||||
KeyHelper(self.0)
|
||||
}
|
||||
|
||||
/// Sets a new alias for a bucket in global namespace.
|
||||
/// This function fails if:
|
||||
/// - alias name is not valid according to S3 spec
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - alias already exists and points to another bucket
|
||||
pub async fn set_global_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
if !is_valid_bucket_name(alias_name) {
|
||||
return Err(Error::InvalidBucketName(alias_name.to_string()));
|
||||
}
|
||||
|
||||
let mut bucket = self.bucket().get_existing_bucket(bucket_id).await?;
|
||||
|
||||
let alias = self.0.bucket_alias_table.get(&EmptyKey, alias_name).await?;
|
||||
|
||||
if let Some(existing_alias) = alias.as_ref() {
|
||||
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
|
||||
)));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Checks ok, add alias
|
||||
let bucket_p = bucket.state.as_option_mut().unwrap();
|
||||
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
bucket_p.aliases.get_timestamp(alias_name),
|
||||
alias.as_ref().map(|a| a.state.timestamp()).unwrap_or(0),
|
||||
);
|
||||
|
||||
// ---- timestamp-ensured causality barrier ----
|
||||
// writes are now done and all writes use timestamp alias_ts
|
||||
|
||||
let alias = match alias {
|
||||
None => BucketAlias::new(alias_name.clone(), alias_ts, Some(bucket_id))
|
||||
.ok_or_else(|| Error::InvalidBucketName(alias_name.clone()))?,
|
||||
Some(mut a) => {
|
||||
a.state = Lww::raw(alias_ts, Some(bucket_id));
|
||||
a
|
||||
}
|
||||
};
|
||||
self.0.bucket_alias_table.insert(&alias).await?;
|
||||
|
||||
bucket_p.aliases = LwwMap::raw_item(alias_name.clone(), alias_ts, true);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Unsets an alias for a bucket in global namespace.
|
||||
/// This function fails if:
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - alias does not exist or maps to another bucket (-> internal error)
|
||||
/// - bucket has no other aliases (global or local)
|
||||
pub async fn unset_global_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
let mut bucket = self.bucket().get_existing_bucket(bucket_id).await?;
|
||||
let bucket_state = bucket.state.as_option_mut().unwrap();
|
||||
|
||||
let mut alias = self
|
||||
.0
|
||||
.bucket_alias_table
|
||||
.get(&EmptyKey, alias_name)
|
||||
.await?
|
||||
.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
|
||||
))?;
|
||||
|
||||
let has_other_global_aliases = bucket_state
|
||||
.aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|(name, _, active)| name != alias_name && *active);
|
||||
let has_other_local_aliases = bucket_state
|
||||
.local_aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|(_, _, active)| *active);
|
||||
if !has_other_global_aliases && !has_other_local_aliases {
|
||||
return Err(Error::BadRequest(format!("Bucket {} doesn't have other aliases, please delete it instead of just unaliasing.", alias_name)));
|
||||
}
|
||||
|
||||
// Checks ok, remove alias
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
alias.state.timestamp(),
|
||||
bucket_state.aliases.get_timestamp(alias_name),
|
||||
);
|
||||
|
||||
// ---- timestamp-ensured causality barrier ----
|
||||
// writes are now done and all writes use timestamp alias_ts
|
||||
|
||||
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);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
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.bucket().get_internal_bucket(bucket_id).await?;
|
||||
|
||||
let mut alias = self
|
||||
.0
|
||||
.bucket_alias_table
|
||||
.get(&EmptyKey, alias_name)
|
||||
.await?
|
||||
.ok_or_else(|| Error::NoSuchBucket(alias_name.to_string()))?;
|
||||
|
||||
// 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(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
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - key does not exist or is deleted
|
||||
/// - alias already exists and points to another bucket
|
||||
pub async fn set_local_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
key_id: &String,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
let key_helper = KeyHelper(self.0);
|
||||
|
||||
if !is_valid_bucket_name(alias_name) {
|
||||
return Err(Error::InvalidBucketName(alias_name.to_string()));
|
||||
}
|
||||
|
||||
let mut bucket = self.bucket().get_existing_bucket(bucket_id).await?;
|
||||
let mut key = key_helper.get_existing_key(key_id).await?;
|
||||
|
||||
let key_param = key.state.as_option_mut().unwrap();
|
||||
|
||||
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)));
|
||||
}
|
||||
}
|
||||
|
||||
// Checks ok, add alias
|
||||
let bucket_p = bucket.state.as_option_mut().unwrap();
|
||||
let bucket_p_local_alias_key = (key.key_id.clone(), alias_name.clone());
|
||||
|
||||
// Calculate the timestamp to assign to this aliasing in the two local_aliases maps
|
||||
// (the one from key to bucket, and the reverse one stored in the bucket iself)
|
||||
// so that merges on both maps in case of a concurrent operation resolve
|
||||
// to the same alias being set
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
key_param.local_aliases.get_timestamp(alias_name),
|
||||
bucket_p
|
||||
.local_aliases
|
||||
.get_timestamp(&bucket_p_local_alias_key),
|
||||
);
|
||||
|
||||
// ---- 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, 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);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Unsets an alias for a bucket in the local namespace of a key.
|
||||
/// This function fails if:
|
||||
/// - bucket does not exist or is deleted
|
||||
/// - key does not exist or is deleted
|
||||
/// - alias does not exist or maps to another bucket (-> internal error)
|
||||
/// - bucket has no other aliases (global or local)
|
||||
pub async fn unset_local_bucket_alias(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
key_id: &String,
|
||||
alias_name: &String,
|
||||
) -> Result<(), Error> {
|
||||
let key_helper = KeyHelper(self.0);
|
||||
|
||||
let mut bucket = self.bucket().get_existing_bucket(bucket_id).await?;
|
||||
let mut key = key_helper.get_existing_key(key_id).await?;
|
||||
|
||||
let bucket_p = bucket.state.as_option_mut().unwrap();
|
||||
|
||||
if key
|
||||
.state
|
||||
.as_option()
|
||||
.unwrap()
|
||||
.local_aliases
|
||||
.get(alias_name)
|
||||
.cloned()
|
||||
.flatten() != Some(bucket_id)
|
||||
{
|
||||
return Err(GarageError::Message(format!(
|
||||
"Bucket {:?} does not have alias {} in namespace of key {}",
|
||||
bucket_id, alias_name, key_id
|
||||
))
|
||||
.into());
|
||||
}
|
||||
|
||||
let has_other_global_aliases = bucket_p
|
||||
.aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|(_, _, active)| *active);
|
||||
let has_other_local_aliases = bucket_p
|
||||
.local_aliases
|
||||
.items()
|
||||
.iter()
|
||||
.any(|((k, n), _, active)| *k == key.key_id && n == alias_name && *active);
|
||||
if !has_other_global_aliases && !has_other_local_aliases {
|
||||
return Err(Error::BadRequest(format!("Bucket {} doesn't have other aliases, please delete it instead of just unaliasing.", alias_name)));
|
||||
}
|
||||
|
||||
// Checks ok, remove alias
|
||||
let key_param = key.state.as_option_mut().unwrap();
|
||||
let bucket_p_local_alias_key = (key.key_id.clone(), alias_name.clone());
|
||||
|
||||
let alias_ts = increment_logical_clock_2(
|
||||
key_param.local_aliases.get_timestamp(alias_name),
|
||||
bucket_p
|
||||
.local_aliases
|
||||
.get_timestamp(&bucket_p_local_alias_key),
|
||||
);
|
||||
|
||||
// ---- 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, None);
|
||||
self.0.key_table.insert(&key).await?;
|
||||
|
||||
bucket_p.local_aliases = LwwMap::raw_item(bucket_p_local_alias_key, alias_ts, false);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Sets permissions for a key on a bucket.
|
||||
/// This function fails if:
|
||||
/// - bucket or key cannot be found at all (its ok if they are in deleted state)
|
||||
/// - bucket or key is in deleted state and we are trying to set permissions other than "deny
|
||||
/// all"
|
||||
pub async fn set_bucket_key_permissions(
|
||||
&self,
|
||||
bucket_id: Uuid,
|
||||
key_id: &String,
|
||||
mut perm: BucketKeyPerm,
|
||||
) -> Result<(), Error> {
|
||||
let key_helper = KeyHelper(self.0);
|
||||
|
||||
let mut bucket = self.bucket().get_internal_bucket(bucket_id).await?;
|
||||
let mut key = key_helper.get_internal_key(key_id).await?;
|
||||
|
||||
if let Some(bstate) = bucket.state.as_option() {
|
||||
if let Some(kp) = bstate.authorized_keys.get(key_id) {
|
||||
perm.timestamp = increment_logical_clock_2(perm.timestamp, kp.timestamp);
|
||||
}
|
||||
} else if perm.is_any() {
|
||||
return Err(Error::BadRequest(
|
||||
"Trying to give permissions on a deleted bucket".into(),
|
||||
));
|
||||
}
|
||||
|
||||
if let Some(kstate) = key.state.as_option() {
|
||||
if let Some(bp) = kstate.authorized_buckets.get(&bucket_id) {
|
||||
perm.timestamp = increment_logical_clock_2(perm.timestamp, bp.timestamp);
|
||||
}
|
||||
} else if perm.is_any() {
|
||||
return Err(Error::BadRequest(
|
||||
"Trying to give permissions to a deleted key".into(),
|
||||
));
|
||||
}
|
||||
|
||||
// ---- timestamp-ensured causality barrier ----
|
||||
|
||||
if let Some(bstate) = bucket.state.as_option_mut() {
|
||||
bstate.authorized_keys = Map::put_mutator(key_id.clone(), perm);
|
||||
self.0.bucket_table.insert(&bucket).await?;
|
||||
}
|
||||
|
||||
if let Some(kstate) = key.state.as_option_mut() {
|
||||
kstate.authorized_buckets = Map::put_mutator(bucket_id, perm);
|
||||
self.0.key_table.insert(&key).await?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// ----
|
||||
|
||||
/// Deletes an API access key
|
||||
pub async fn delete_key(&self, key: &mut Key) -> Result<(), Error> {
|
||||
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 {
|
||||
self.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() {
|
||||
self.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(())
|
||||
}
|
||||
}
|
||||
|
|
@ -1,3 +1,4 @@
|
|||
pub mod bucket;
|
||||
pub mod error;
|
||||
pub mod key;
|
||||
pub mod locked;
|
||||
|
|
|
|||
|
|
@ -67,6 +67,8 @@ impl Migrate {
|
|||
None
|
||||
};
|
||||
|
||||
let helper = self.garage.locked_helper().await;
|
||||
|
||||
self.garage
|
||||
.bucket_table
|
||||
.insert(&Bucket {
|
||||
|
|
@ -84,14 +86,10 @@ impl Migrate {
|
|||
})
|
||||
.await?;
|
||||
|
||||
self.garage
|
||||
.bucket_helper()
|
||||
.set_global_bucket_alias(bucket_id, &new_name)
|
||||
.await?;
|
||||
helper.set_global_bucket_alias(bucket_id, &new_name).await?;
|
||||
|
||||
for (k, ts, perm) in old_bucket_p.authorized_keys.items().iter() {
|
||||
self.garage
|
||||
.bucket_helper()
|
||||
helper
|
||||
.set_bucket_key_permissions(
|
||||
bucket_id,
|
||||
k,
|
||||
|
|
|
|||
Loading…
Reference in a new issue