328 lines
7.7 KiB
Go
328 lines
7.7 KiB
Go
package storage
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"net/http"
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"github.com/aws/aws-sdk-go-v2/aws"
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awsConfig "github.com/aws/aws-sdk-go-v2/config"
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"github.com/aws/aws-sdk-go-v2/credentials"
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"github.com/aws/aws-sdk-go-v2/service/s3"
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"git.lumeweb.com/LumeWeb/portal/config"
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"go.uber.org/fx"
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"go.sia.tech/renterd/api"
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"git.lumeweb.com/LumeWeb/portal/metadata"
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"go.uber.org/zap"
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"git.lumeweb.com/LumeWeb/portal/bao"
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"gorm.io/gorm"
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"git.lumeweb.com/LumeWeb/portal/renter"
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)
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const PROOF_EXTENSION = ".obao"
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var _ StorageService = (*StorageServiceDefault)(nil)
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type FileNameEncoderFunc func([]byte) string
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type StorageProtocol interface {
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Name() string
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EncodeFileName([]byte) string
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}
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var Module = fx.Module("storage",
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fx.Provide(
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fx.Annotate(
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NewStorageService,
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fx.As(new(StorageService)),
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),
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),
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)
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type StorageService interface {
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UploadObject(ctx context.Context, protocol StorageProtocol, data io.ReadSeeker, muParams *renter.MultiPartUploadParams, proof *bao.Result) (*metadata.UploadMetadata, error)
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UploadObjectProof(ctx context.Context, protocol StorageProtocol, data io.ReadSeeker, proof *bao.Result) error
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HashObject(ctx context.Context, data io.Reader) (*bao.Result, error)
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DownloadObject(ctx context.Context, protocol StorageProtocol, objectHash []byte, start int64) (io.ReadCloser, error)
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DownloadObjectProof(ctx context.Context, protocol StorageProtocol, objectHash []byte) (io.ReadCloser, error)
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DeleteObject(ctx context.Context, protocol StorageProtocol, objectHash []byte) error
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DeleteObjectProof(ctx context.Context, protocol StorageProtocol, objectHash []byte) error
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S3Client(ctx context.Context) (*s3.Client, error)
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}
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type StorageServiceDefault struct {
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config *config.Manager
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db *gorm.DB
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renter *renter.RenterDefault
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logger *zap.Logger
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metadata metadata.MetadataService
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}
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type StorageServiceParams struct {
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fx.In
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Config *config.Manager
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Db *gorm.DB
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Renter *renter.RenterDefault
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Logger *zap.Logger
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Metadata metadata.MetadataService
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}
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func NewStorageService(params StorageServiceParams) *StorageServiceDefault {
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return &StorageServiceDefault{
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config: params.Config,
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db: params.Db,
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renter: params.Renter,
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logger: params.Logger,
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metadata: params.Metadata,
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}
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}
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func (s StorageServiceDefault) UploadObject(ctx context.Context, protocol StorageProtocol, data io.ReadSeeker, muParams *renter.MultiPartUploadParams, proof *bao.Result) (*metadata.UploadMetadata, error) {
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readers := make([]io.ReadCloser, 0)
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defer func() {
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for _, reader := range readers {
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err := reader.Close()
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if err != nil {
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s.logger.Error("error closing reader", zap.Error(err))
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}
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}
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}()
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getReader := func() (io.Reader, error) {
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if muParams != nil {
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muReader, err := muParams.ReaderFactory(0, uint(muParams.Size))
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if err != nil {
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return nil, err
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}
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found := false
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for _, reader := range readers {
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if reader == muReader {
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found = true
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break
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}
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}
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if !found {
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readers = append(readers, muReader)
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}
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return muReader, nil
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}
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_, err := data.Seek(0, io.SeekStart)
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if err != nil {
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return nil, err
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}
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return data, nil
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}
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reader, err := getReader()
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if err != nil {
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return nil, err
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}
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if proof == nil {
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hashResult, err := s.HashObject(ctx, reader)
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if err != nil {
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return nil, err
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}
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reader, err = getReader()
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if err != nil {
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return nil, err
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}
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proof = hashResult
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}
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meta, err := s.metadata.GetUpload(ctx, proof.Hash)
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if err == nil {
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return &meta, nil
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}
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mimeBytes := make([]byte, 512)
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reader, err = getReader()
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if err != nil {
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return nil, err
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}
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_, err = io.ReadFull(reader, mimeBytes)
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if err != nil {
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return nil, err
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}
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reader, err = getReader()
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if err != nil {
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return nil, err
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}
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mimeType := http.DetectContentType(mimeBytes)
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protocolName := protocol.Name()
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err = s.renter.CreateBucketIfNotExists(protocolName)
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if err != nil {
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return nil, err
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}
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filename := protocol.EncodeFileName(proof.Hash)
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err = s.UploadObjectProof(ctx, protocol, nil, proof)
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if err != nil {
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return nil, err
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}
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uploadMeta := &metadata.UploadMetadata{
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Protocol: protocolName,
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Hash: proof.Hash,
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MimeType: mimeType,
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Size: uint64(proof.Length),
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}
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if muParams != nil {
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muParams.FileName = filename
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muParams.Bucket = protocolName
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err = s.renter.UploadObjectMultipart(ctx, muParams)
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if err != nil {
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return nil, err
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}
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return uploadMeta, nil
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}
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err = s.renter.UploadObject(ctx, reader, protocolName, filename)
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if err != nil {
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return nil, err
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}
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return uploadMeta, nil
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}
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func (s StorageServiceDefault) UploadObjectProof(ctx context.Context, protocol StorageProtocol, data io.ReadSeeker, proof *bao.Result) error {
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if proof == nil {
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hashResult, err := s.HashObject(ctx, data)
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if err != nil {
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return err
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}
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proof = hashResult
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}
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protocolName := protocol.Name()
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err := s.renter.CreateBucketIfNotExists(protocolName)
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if err != nil {
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return err
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}
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return s.renter.UploadObject(ctx, bytes.NewReader(proof.Proof), protocolName, s.getProofPath(protocol, proof.Hash))
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}
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func (s StorageServiceDefault) HashObject(ctx context.Context, data io.Reader) (*bao.Result, error) {
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result, err := bao.Hash(data)
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if err != nil {
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return nil, err
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}
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return result, nil
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}
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func (s StorageServiceDefault) DownloadObject(ctx context.Context, protocol StorageProtocol, objectHash []byte, start int64) (io.ReadCloser, error) {
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var partialRange api.DownloadRange
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upload, err := s.metadata.GetUpload(ctx, objectHash)
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if err != nil {
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return nil, err
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}
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if start > 0 {
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partialRange = api.DownloadRange{
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Offset: start,
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Length: int64(upload.Size) - start + 1,
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Size: int64(upload.Size),
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}
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}
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object, err := s.renter.GetObject(ctx, protocol.Name(), protocol.EncodeFileName(objectHash), api.DownloadObjectOptions{Range: partialRange})
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if err != nil {
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return nil, err
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}
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return object.Content, nil
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}
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func (s StorageServiceDefault) DownloadObjectProof(ctx context.Context, protocol StorageProtocol, objectHash []byte) (io.ReadCloser, error) {
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object, err := s.renter.GetObject(ctx, protocol.Name(), protocol.EncodeFileName(objectHash)+".bao", api.DownloadObjectOptions{})
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if err != nil {
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return nil, err
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}
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return object.Content, nil
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}
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func (s StorageServiceDefault) DeleteObject(ctx context.Context, protocol StorageProtocol, objectHash []byte) error {
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err := s.renter.DeleteObject(ctx, protocol.Name(), protocol.EncodeFileName(objectHash))
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if err != nil {
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return err
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}
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return nil
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}
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func (s StorageServiceDefault) DeleteObjectProof(ctx context.Context, protocol StorageProtocol, objectHash []byte) error {
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err := s.renter.DeleteObject(ctx, protocol.Name(), s.getProofPath(protocol, objectHash))
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if err != nil {
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return err
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}
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return nil
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}
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func (s StorageServiceDefault) S3Client(ctx context.Context) (*s3.Client, error) {
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customResolver := aws.EndpointResolverWithOptionsFunc(func(service, region string, options ...interface{}) (aws.Endpoint, error) {
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if service == s3.ServiceID {
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return aws.Endpoint{
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URL: s.config.Config().Core.Storage.S3.Endpoint,
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SigningRegion: s.config.Config().Core.Storage.S3.Region,
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}, nil
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}
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return aws.Endpoint{}, &aws.EndpointNotFoundError{}
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})
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cfg, err := awsConfig.LoadDefaultConfig(ctx,
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awsConfig.WithRegion("us-east-1"),
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awsConfig.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(
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s.config.Config().Core.Storage.S3.AccessKey,
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s.config.Config().Core.Storage.S3.SecretKey,
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"",
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)),
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awsConfig.WithEndpointResolverWithOptions(customResolver),
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)
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if err != nil {
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return nil, err
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}
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return s3.NewFromConfig(cfg), nil
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}
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func (s StorageServiceDefault) getProofPath(protocol StorageProtocol, objectHash []byte) string {
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return fmt.Sprintf("%s%s", protocol.EncodeFileName(objectHash), PROOF_EXTENSION)
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}
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