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Simplify data verification with HashReader. (#5071)

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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.
This commit is contained in:
Harshavardhana
2017-10-21 22:30:34 -07:00
committed by Nitish Tiwari
parent 65a817fe8c
commit 1d8a8c63db
51 changed files with 749 additions and 499 deletions
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cmd/gateway-s3-anonymous.go
+3 -23
View File
@@ -17,35 +17,15 @@
package cmd
import (
"encoding/hex"
"io"
minio "github.com/minio/minio-go"
"github.com/minio/minio/pkg/hash"
)
// AnonPutObject creates a new object anonymously with the incoming data,
func (l *s3Objects) AnonPutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string, sha256sum string) (objInfo ObjectInfo, e error) {
var sha256sumBytes []byte
var err error
if sha256sum != "" {
sha256sumBytes, err = hex.DecodeString(sha256sum)
if err != nil {
return objInfo, s3ToObjectError(traceError(err), bucket, object)
}
}
var md5sumBytes []byte
md5sum := metadata["etag"]
if md5sum != "" {
md5sumBytes, err = hex.DecodeString(md5sum)
if err != nil {
return objInfo, s3ToObjectError(traceError(err), bucket, object)
}
delete(metadata, "etag")
}
oi, err := l.anonClient.PutObject(bucket, object, data, size, md5sumBytes, sha256sumBytes, toMinioClientMetadata(metadata))
func (l *s3Objects) AnonPutObject(bucket string, object string, data *hash.Reader, metadata map[string]string) (objInfo ObjectInfo, e error) {
oi, err := l.anonClient.PutObject(bucket, object, data, data.Size(), data.MD5(), data.SHA256(), toMinioClientMetadata(metadata))
if err != nil {
return objInfo, s3ToObjectError(traceError(err), bucket, object)
}