gotosocial/internal/storage/storage.go

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/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package storage
import (
"context"
"errors"
"fmt"
"io"
"net/url"
"path"
"codeberg.org/gruf/go-store/v2/kv"
"codeberg.org/gruf/go-store/v2/storage"
"github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
"github.com/superseriousbusiness/gotosocial/internal/config"
)
var (
ErrNotSupported = errors.New("driver does not suppport functionality")
ErrAlreadyExists = storage.ErrAlreadyExists
)
// Driver implements the functionality to store and retrieve blobs
// (images,video,audio)
type Driver interface {
Get(ctx context.Context, key string) ([]byte, error)
GetStream(ctx context.Context, key string) (io.ReadCloser, error)
PutStream(ctx context.Context, key string, r io.Reader) error
Put(ctx context.Context, key string, value []byte) error
Delete(ctx context.Context, key string) error
URL(ctx context.Context, key string) *url.URL
}
func AutoConfig() (Driver, error) {
switch config.GetStorageBackend() {
case "s3":
mc, err := minio.New(config.GetStorageS3Endpoint(), &minio.Options{
Creds: credentials.NewStaticV4(config.GetStorageS3AccessKey(), config.GetStorageS3SecretKey(), ""),
Secure: config.GetStorageS3UseSSL(),
})
if err != nil {
return nil, fmt.Errorf("creating minio client: %w", err)
}
return NewS3(mc, config.GetStorageS3BucketName()), nil
case "local":
basePath := config.GetStorageLocalBasePath()
disk, err := storage.OpenDisk(basePath, &storage.DiskConfig{
// Put the store lockfile in the storage dir itself.
// Normally this would not be safe, since we could end up
// overwriting the lockfile if we store a file called 'store.lock'.
// However, in this case it's OK because the keys are set by
// GtS and not the user, so we know we're never going to overwrite it.
LockFile: path.Join(basePath, "store.lock"),
})
if err != nil {
return nil, fmt.Errorf("error openingdisk storage: %v", err)
}
return &Local{kv.New(disk)}, nil
}
return nil, fmt.Errorf("invalid storage backend %s", config.GetStorageBackend())
}