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