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b7a2e8a2c3
This fixes the cases for racing uploads with the same object names. Before we were making some bad assumptions about what would cause an error when trying to link/rename the final object name into the namespace, but missed the case that another upload for the same name could be racing with this upload and causing an incorrect error. This also changes the order of setting metadata to prevent accidental setting of metadata for the current upload to another racing upload. This also fix auth.CheckObjectAccess() when objects are removed while this runs. Fixes #854
43 lines
1.8 KiB
Go
43 lines
1.8 KiB
Go
// Copyright 2024 Versity Software
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// This file is licensed under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package meta
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import "os"
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// MetadataStorer defines the interface for managing metadata.
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// When object == "", the operation is on the bucket.
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type MetadataStorer interface {
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// RetrieveAttribute retrieves the value of a specific attribute for an object or a bucket.
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// Returns the value of the attribute, or an error if the attribute does not exist.
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RetrieveAttribute(f *os.File, bucket, object, attribute string) ([]byte, error)
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// StoreAttribute stores the value of a specific attribute for an object or a bucket.
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// If attribute already exists, new attribute should replace existing.
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// Returns an error if the operation fails.
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StoreAttribute(f *os.File, bucket, object, attribute string, value []byte) error
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// DeleteAttribute removes the value of a specific attribute for an object or a bucket.
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// Returns an error if the operation fails.
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DeleteAttribute(bucket, object, attribute string) error
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// ListAttributes lists all attributes for an object or a bucket.
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// Returns list of attribute names, or an error if the operation fails.
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ListAttributes(bucket, object string) ([]string, error)
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// DeleteAttributes removes all attributes for an object or a bucket.
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// Returns an error if the operation fails.
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DeleteAttributes(bucket, object string) error
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}
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