minio/cmd/gateway-s3-anonymous.go

84 lines
2.5 KiB
Go

/*
* Minio Cloud Storage, (C) 2017 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import "io"
// AnonGetObject - Get object anonymously
func (l *s3Gateway) AnonGetObject(bucket string, key string, startOffset int64, length int64, writer io.Writer) error {
object, err := l.anonClient.GetObject(bucket, key)
if err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
defer object.Close()
object.Seek(startOffset, io.SeekStart)
if _, err := io.CopyN(writer, object, length); err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
return nil
}
// AnonGetObjectInfo - Get object info anonymously
func (l *s3Gateway) AnonGetObjectInfo(bucket string, object string) (ObjectInfo, error) {
oi, err := l.anonClient.StatObject(bucket, object)
if err != nil {
return ObjectInfo{}, s3ToObjectError(traceError(err), bucket, object)
}
return fromMinioClientObjectInfo(bucket, oi), nil
}
// AnonListObjects - List objects anonymously
func (l *s3Gateway) AnonListObjects(bucket string, prefix string, marker string, delimiter string, maxKeys int) (ListObjectsInfo, error) {
result, err := l.anonClient.ListObjects(bucket, prefix, marker, delimiter, maxKeys)
if err != nil {
return ListObjectsInfo{}, s3ToObjectError(traceError(err), bucket)
}
return fromMinioClientListBucketResult(bucket, result), nil
}
// AnonGetBucketInfo - Get bucket metadata anonymously.
func (l *s3Gateway) AnonGetBucketInfo(bucket string) (BucketInfo, error) {
if exists, err := l.anonClient.BucketExists(bucket); err != nil {
return BucketInfo{}, s3ToObjectError(traceError(err), bucket)
} else if !exists {
return BucketInfo{}, traceError(BucketNotFound{Bucket: bucket})
}
buckets, err := l.anonClient.ListBuckets()
if err != nil {
return BucketInfo{}, s3ToObjectError(traceError(err), bucket)
}
for _, bi := range buckets {
if bi.Name != bucket {
continue
}
return BucketInfo{
Name: bi.Name,
Created: bi.CreationDate,
}, nil
}
return BucketInfo{}, traceError(BucketNotFound{Bucket: bucket})
}