mirror of https://github.com/perkeep/perkeep.git
65 lines
1.9 KiB
Go
65 lines
1.9 KiB
Go
/*
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Copyright 2011 The Perkeep Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package s3
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import (
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"context"
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"io"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/s3/s3manager"
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"go4.org/readerutil"
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"perkeep.org/pkg/blob"
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)
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func (sto *s3Storage) ReceiveBlob(ctx context.Context, b blob.Ref, source io.Reader) (sr blob.SizedRef, err error) {
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if faultReceive.FailErr(&err) {
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return
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}
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// unfortunately, the s3manager doesn't tell us the size of the file it uploads.
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// It's still worth using because it handles multipart uploads correctly.
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// In order to still get the size, we check if the given reader provides its
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// size, and if not count the data uploaded as we go.
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if size, ok := readerutil.Size(source); ok {
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if err := sto.doUpload(ctx, b, source); err != nil {
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return sr, err
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}
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return blob.SizedRef{Ref: b, Size: uint32(size)}, nil
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}
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cr := readerutil.CountingReader{
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Reader: source,
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N: aws.Int64(0),
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}
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if err = sto.doUpload(ctx, b, cr); err != nil {
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return sr, err
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}
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return blob.SizedRef{Ref: b, Size: uint32(*cr.N)}, nil
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}
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func (sto *s3Storage) doUpload(ctx context.Context, b blob.Ref, r io.Reader) error {
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uploader := s3manager.NewUploaderWithClient(sto.client)
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_, err := uploader.UploadWithContext(ctx, &s3manager.UploadInput{
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Bucket: &sto.bucket,
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Key: aws.String(sto.dirPrefix + b.String()),
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Body: r,
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})
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return err
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}
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