73 lines
2.5 KiB
Go
73 lines
2.5 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
|
|
//
|
|
// This file is part of MinIO Object Storage stack
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"context"
|
|
"net/http"
|
|
"net/url"
|
|
)
|
|
|
|
// Writes S3 compatible copy part range error.
|
|
func writeCopyPartErr(ctx context.Context, w http.ResponseWriter, err error, url *url.URL) {
|
|
switch err {
|
|
case errInvalidRange:
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopyPartRange), url)
|
|
return
|
|
case errInvalidRangeSource:
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopyPartRangeSource), url)
|
|
return
|
|
default:
|
|
apiErr := errorCodes.ToAPIErr(ErrInvalidCopyPartRangeSource)
|
|
apiErr.Description = err.Error()
|
|
writeErrorResponse(ctx, w, apiErr, url)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Parses x-amz-copy-source-range for CopyObjectPart API. Its behavior
|
|
// is different from regular HTTP range header. It only supports the
|
|
// form `bytes=first-last` where first and last are zero-based byte
|
|
// offsets. See
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadUploadPartCopy.html
|
|
// for full details. This function treats an empty rangeString as
|
|
// referring to the whole resource.
|
|
func parseCopyPartRangeSpec(rangeString string) (hrange *HTTPRangeSpec, err error) {
|
|
hrange, err = parseRequestRangeSpec(rangeString)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if hrange.IsSuffixLength || hrange.Start < 0 || hrange.End < 0 {
|
|
return nil, errInvalidRange
|
|
}
|
|
return hrange, nil
|
|
}
|
|
|
|
// checkCopyPartRangeWithSize adds more check to the range string in case of
|
|
// copy object part. This API requires having specific start and end range values
|
|
// e.g. 'bytes=3-10'. Other use cases will be rejected.
|
|
func checkCopyPartRangeWithSize(rs *HTTPRangeSpec, resourceSize int64) (err error) {
|
|
if rs == nil {
|
|
return nil
|
|
}
|
|
if rs.IsSuffixLength || rs.Start >= resourceSize || rs.End >= resourceSize {
|
|
return errInvalidRangeSource
|
|
}
|
|
return nil
|
|
}
|