66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package packages
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import (
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"io"
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"path"
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"strings"
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"code.gitea.io/gitea/modules/storage"
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"code.gitea.io/gitea/modules/util"
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)
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// BlobHash256Key is the key to address a blob content
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type BlobHash256Key string
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// ContentStore is a wrapper around ObjectStorage
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type ContentStore struct {
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store storage.ObjectStorage
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}
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// NewContentStore creates the default package store
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func NewContentStore() *ContentStore {
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contentStore := &ContentStore{storage.Packages}
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return contentStore
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}
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// Get gets a package blob
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func (s *ContentStore) Get(key BlobHash256Key) (storage.Object, error) {
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return s.store.Open(KeyToRelativePath(key))
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}
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// FIXME: Workaround to be removed in v1.20
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// https://github.com/go-gitea/gitea/issues/19586
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func (s *ContentStore) Has(key BlobHash256Key) error {
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_, err := s.store.Stat(KeyToRelativePath(key))
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return err
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}
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// Save stores a package blob
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func (s *ContentStore) Save(key BlobHash256Key, r io.Reader, size int64) error {
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_, err := s.store.Save(KeyToRelativePath(key), r, size)
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return err
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}
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// Delete deletes a package blob
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func (s *ContentStore) Delete(key BlobHash256Key) error {
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return s.store.Delete(KeyToRelativePath(key))
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}
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// KeyToRelativePath converts the sha256 key aabb000000... to aa/bb/aabb000000...
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func KeyToRelativePath(key BlobHash256Key) string {
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return path.Join(string(key)[0:2], string(key)[2:4], string(key))
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}
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// RelativePathToKey converts a relative path aa/bb/aabb000000... to the sha256 key aabb000000...
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func RelativePathToKey(relativePath string) (BlobHash256Key, error) {
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parts := strings.SplitN(relativePath, "/", 3)
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if len(parts) != 3 || len(parts[0]) != 2 || len(parts[1]) != 2 || len(parts[2]) < 4 || parts[0]+parts[1] != parts[2][0:4] {
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return "", util.ErrInvalidArgument
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}
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return BlobHash256Key(parts[2]), nil
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}
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