1d8a8c63db
Verify() was being called by caller after the data has been successfully read after io.EOF. This disconnection opens a race under concurrent access to such an object. Verification is not necessary outside of Read() call, we can simply just do checksum verification right inside Read() call at io.EOF. This approach simplifies the usage.
112 lines
3.7 KiB
Go
112 lines
3.7 KiB
Go
/*
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* Minio Cloud Storage, (C) 2017 Minio, Inc.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 cmd
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import (
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"io"
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minio "github.com/minio/minio-go"
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"github.com/minio/minio/pkg/hash"
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)
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// AnonPutObject creates a new object anonymously with the incoming data,
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func (l *s3Objects) AnonPutObject(bucket string, object string, data *hash.Reader, metadata map[string]string) (objInfo ObjectInfo, e error) {
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oi, err := l.anonClient.PutObject(bucket, object, data, data.Size(), data.MD5(), data.SHA256(), toMinioClientMetadata(metadata))
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if err != nil {
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return objInfo, s3ToObjectError(traceError(err), bucket, object)
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}
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return fromMinioClientObjectInfo(bucket, oi), nil
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}
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// AnonGetObject - Get object anonymously
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func (l *s3Objects) AnonGetObject(bucket string, key string, startOffset int64, length int64, writer io.Writer) error {
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opts := minio.GetObjectOptions{}
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if err := opts.SetRange(startOffset, startOffset+length-1); err != nil {
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return s3ToObjectError(traceError(err), bucket, key)
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}
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object, _, err := l.anonClient.GetObject(bucket, key, opts)
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if err != nil {
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return s3ToObjectError(traceError(err), bucket, key)
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}
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defer object.Close()
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if _, err := io.CopyN(writer, object, length); err != nil {
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return s3ToObjectError(traceError(err), bucket, key)
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}
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return nil
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}
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// AnonGetObjectInfo - Get object info anonymously
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func (l *s3Objects) AnonGetObjectInfo(bucket string, object string) (objInfo ObjectInfo, e error) {
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oi, err := l.anonClient.StatObject(bucket, object, minio.StatObjectOptions{})
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if err != nil {
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return objInfo, s3ToObjectError(traceError(err), bucket, object)
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}
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return fromMinioClientObjectInfo(bucket, oi), nil
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}
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// AnonListObjects - List objects anonymously
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func (l *s3Objects) AnonListObjects(bucket string, prefix string, marker string, delimiter string, maxKeys int) (loi ListObjectsInfo, e error) {
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result, err := l.anonClient.ListObjects(bucket, prefix, marker, delimiter, maxKeys)
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if err != nil {
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return loi, s3ToObjectError(traceError(err), bucket)
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}
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return fromMinioClientListBucketResult(bucket, result), nil
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}
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// AnonListObjectsV2 - List objects in V2 mode, anonymously
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func (l *s3Objects) AnonListObjectsV2(bucket, prefix, continuationToken, delimiter string, maxKeys int, fetchOwner bool, startAfter string) (loi ListObjectsV2Info, e error) {
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result, err := l.anonClient.ListObjectsV2(bucket, prefix, continuationToken, fetchOwner, delimiter, maxKeys)
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if err != nil {
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return loi, s3ToObjectError(traceError(err), bucket)
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}
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return fromMinioClientListBucketV2Result(bucket, result), nil
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}
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// AnonGetBucketInfo - Get bucket metadata anonymously.
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func (l *s3Objects) AnonGetBucketInfo(bucket string) (bi BucketInfo, e error) {
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if exists, err := l.anonClient.BucketExists(bucket); err != nil {
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return bi, s3ToObjectError(traceError(err), bucket)
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} else if !exists {
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return bi, traceError(BucketNotFound{Bucket: bucket})
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}
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buckets, err := l.anonClient.ListBuckets()
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if err != nil {
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return bi, s3ToObjectError(traceError(err), bucket)
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}
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for _, bi := range buckets {
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if bi.Name != bucket {
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continue
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}
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return BucketInfo{
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Name: bi.Name,
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Created: bi.CreationDate,
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}, nil
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}
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return bi, traceError(BucketNotFound{Bucket: bucket})
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}
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