mirror of
https://github.com/versity/versitygw.git
synced 2026-01-08 04:35:15 +00:00
112 lines
2.9 KiB
Go
112 lines
2.9 KiB
Go
// Copyright 2023 Versity Software
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// This file is licensed under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance
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// with the License. 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package backend
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import (
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"crypto/md5"
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"encoding/hex"
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"errors"
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"fmt"
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"io/fs"
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"strconv"
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"strings"
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"time"
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"github.com/aws/aws-sdk-go-v2/service/s3/types"
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"github.com/versity/versitygw/s3response"
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)
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var (
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// RFC3339TimeFormat RFC3339 time format
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RFC3339TimeFormat = "2006-01-02T15:04:05.999Z"
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)
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func IsValidBucketName(name string) bool { return true }
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type ByBucketName []s3response.ListAllMyBucketsEntry
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func (d ByBucketName) Len() int { return len(d) }
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func (d ByBucketName) Swap(i, j int) { d[i], d[j] = d[j], d[i] }
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func (d ByBucketName) Less(i, j int) bool { return d[i].Name < d[j].Name }
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type ByObjectName []types.Object
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func (d ByObjectName) Len() int { return len(d) }
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func (d ByObjectName) Swap(i, j int) { d[i], d[j] = d[j], d[i] }
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func (d ByObjectName) Less(i, j int) bool { return *d[i].Key < *d[j].Key }
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func GetStringPtr(s string) *string {
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return &s
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}
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func GetTimePtr(t time.Time) *time.Time {
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return &t
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}
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func ParseRange(file fs.FileInfo, acceptRange string) (int64, int64, error) {
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if acceptRange == "" {
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return 0, file.Size(), nil
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}
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rangeKv := strings.Split(acceptRange, "=")
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if len(rangeKv) < 2 {
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return 0, 0, errors.New("invalid range parameter")
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}
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bRange := strings.Split(rangeKv[1], "-")
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if len(bRange) < 2 {
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return 0, 0, errors.New("invalid range parameter")
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}
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startOffset, err := strconv.ParseInt(bRange[0], 10, 64)
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if err != nil {
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return 0, 0, errors.New("invalid range parameter")
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}
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endOffset, err := strconv.ParseInt(bRange[1], 10, 64)
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if err != nil {
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return 0, 0, errors.New("invalid range parameter")
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}
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if endOffset < startOffset {
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return 0, 0, errors.New("invalid range parameter")
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}
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return int64(startOffset), int64(endOffset - startOffset + 1), nil
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}
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func GetMultipartMD5(parts []types.Part) string {
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var partsEtagBytes []byte
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for _, part := range parts {
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partsEtagBytes = append(partsEtagBytes, getEtagBytes(*part.ETag)...)
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}
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s3MD5 := fmt.Sprintf("%s-%d", md5String(partsEtagBytes), len(parts))
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return s3MD5
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}
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func getEtagBytes(etag string) []byte {
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decode, err := hex.DecodeString(strings.ReplaceAll(etag, string('"'), ""))
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if err != nil {
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return []byte(etag)
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}
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return decode
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}
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func md5String(data []byte) string {
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sum := md5.Sum(data)
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return hex.EncodeToString(sum[:])
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}
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