snapshot of https://github.com/go-gitea/gitea.git (main, 2026-09-15; blobs > 131072B omitted)

modules/packages/content_store.go

@@ -0,0 +1,81 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"errors"
+	"io"
+	"io/fs"
+	"net/url"
+	"path"
+	"strings"
+
+	"gitea.dev/modules/optional"
+	"gitea.dev/modules/setting"
+	"gitea.dev/modules/storage"
+	"gitea.dev/modules/util"
+)
+
+// BlobHash256Key is the key to address a blob content
+type BlobHash256Key string
+
+// ContentStore is a wrapper around ObjectStorage
+type ContentStore struct {
+	store storage.ObjectStorage
+}
+
+// NewContentStore creates the default package store
+func NewContentStore() *ContentStore {
+	contentStore := &ContentStore{storage.Packages}
+	return contentStore
+}
+
+func (s *ContentStore) OpenBlob(key BlobHash256Key) (storage.Object, error) {
+	return s.store.Open(KeyToRelativePath(key))
+}
+
+func (s *ContentStore) ShouldServeDirect() bool {
+	return setting.Packages.Storage.ServeDirect()
+}
+
+func (s *ContentStore) GetServeDirectURL(key BlobHash256Key, filename, method string, reqParams *storage.ServeDirectOptions) (*url.URL, error) {
+	return s.store.ServeDirectURL(KeyToRelativePath(key), filename, method, reqParams)
+}
+
+func (s *ContentStore) OptionalSize(key BlobHash256Key) (sz optional.Option[int64], _ error) {
+	st, err := s.store.Stat(KeyToRelativePath(key))
+	if errors.Is(err, fs.ErrNotExist) {
+		return sz, nil
+	}
+	if err != nil {
+		return sz, err
+	}
+	return optional.Some(st.Size()), nil
+}
+
+// Save stores a package blob
+func (s *ContentStore) Save(key BlobHash256Key, r io.Reader, size int64) error {
+	_, err := s.store.Save(KeyToRelativePath(key), r, size)
+	return err
+}
+
+// Delete deletes a package blob
+func (s *ContentStore) Delete(key BlobHash256Key) error {
+	return s.store.Delete(KeyToRelativePath(key))
+}
+
+// KeyToRelativePath converts the sha256 key aabb000000... to aa/bb/aabb000000...
+func KeyToRelativePath(key BlobHash256Key) string {
+	return path.Join(string(key)[0:2], string(key)[2:4], string(key))
+}
+
+// RelativePathToKey converts a relative path aa/bb/aabb000000... to the sha256 key aabb000000...
+func RelativePathToKey(relativePath string) (BlobHash256Key, error) {
+	parts := strings.SplitN(relativePath, "/", 3)
+	if len(parts) != 3 || len(parts[0]) != 2 || len(parts[1]) != 2 || len(parts[2]) < 4 || parts[0]+parts[1] != parts[2][0:4] {
+		return "", util.ErrInvalidArgument
+	}
+
+	return BlobHash256Key(parts[2]), nil
+}