mirror of
https://github.com/restic/restic.git
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169 lines
4.7 KiB
Go
169 lines
4.7 KiB
Go
/*
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* MinIO Go Library for Amazon S3 Compatible Cloud Storage
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* Copyright 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package minio
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import (
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"bytes"
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"context"
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"encoding/xml"
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"fmt"
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"net/http"
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"net/url"
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"time"
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"github.com/minio/minio-go/v6/pkg/s3utils"
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)
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// objectRetention - object retention specified in
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// https://docs.aws.amazon.com/AmazonS3/latest/API/Type_API_ObjectLockConfiguration.html
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type objectRetention struct {
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XMLNS string `xml:"xmlns,attr,omitempty"`
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XMLName xml.Name `xml:"Retention"`
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Mode RetentionMode `xml:"Mode"`
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RetainUntilDate time.Time `type:"timestamp" timestampFormat:"iso8601" xml:"RetainUntilDate"`
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}
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func newObjectRetention(mode *RetentionMode, date *time.Time) (*objectRetention, error) {
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if mode == nil {
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return nil, fmt.Errorf("Mode not set")
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}
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if date == nil {
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return nil, fmt.Errorf("RetainUntilDate not set")
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}
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if !mode.IsValid() {
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return nil, fmt.Errorf("invalid retention mode `%v`", mode)
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}
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objectRetention := &objectRetention{
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Mode: *mode,
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RetainUntilDate: *date,
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}
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return objectRetention, nil
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}
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// PutObjectRetentionOptions represents options specified by user for PutObject call
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type PutObjectRetentionOptions struct {
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GovernanceBypass bool
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Mode *RetentionMode
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RetainUntilDate *time.Time
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VersionID string
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}
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// PutObjectRetention : sets object retention for a given object and versionID.
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func (c Client) PutObjectRetention(bucketName, objectName string, opts PutObjectRetentionOptions) error {
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// Input validation.
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if err := s3utils.CheckValidBucketName(bucketName); err != nil {
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return err
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}
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if err := s3utils.CheckValidObjectName(objectName); err != nil {
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return err
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}
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// Get resources properly escaped and lined up before
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// using them in http request.
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urlValues := make(url.Values)
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urlValues.Set("retention", "")
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if opts.VersionID != "" {
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urlValues.Set("versionId", opts.VersionID)
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}
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retention, err := newObjectRetention(opts.Mode, opts.RetainUntilDate)
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if err != nil {
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return err
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}
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retentionData, err := xml.Marshal(retention)
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if err != nil {
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return err
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}
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// Build headers.
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headers := make(http.Header)
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if opts.GovernanceBypass {
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// Set the bypass goverenance retention header
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headers.Set("x-amz-bypass-governance-retention", "True")
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}
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reqMetadata := requestMetadata{
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bucketName: bucketName,
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objectName: objectName,
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queryValues: urlValues,
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contentBody: bytes.NewReader(retentionData),
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contentLength: int64(len(retentionData)),
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contentMD5Base64: sumMD5Base64(retentionData),
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contentSHA256Hex: sum256Hex(retentionData),
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customHeader: headers,
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}
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// Execute PUT Object Retention.
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resp, err := c.executeMethod(context.Background(), "PUT", reqMetadata)
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defer closeResponse(resp)
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if err != nil {
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return err
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}
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if resp != nil {
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if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
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return httpRespToErrorResponse(resp, bucketName, objectName)
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}
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}
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return nil
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}
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// GetObjectRetention gets retention of given object.
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func (c Client) GetObjectRetention(bucketName, objectName, versionID string) (mode *RetentionMode, retainUntilDate *time.Time, err error) {
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// Input validation.
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if err := s3utils.CheckValidBucketName(bucketName); err != nil {
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return nil, nil, err
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}
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if err := s3utils.CheckValidObjectName(objectName); err != nil {
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return nil, nil, err
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}
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urlValues := make(url.Values)
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urlValues.Set("retention", "")
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if versionID != "" {
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urlValues.Set("versionId", versionID)
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}
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// Execute GET on bucket to list objects.
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resp, err := c.executeMethod(context.Background(), "GET", requestMetadata{
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bucketName: bucketName,
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objectName: objectName,
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queryValues: urlValues,
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contentSHA256Hex: emptySHA256Hex,
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})
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defer closeResponse(resp)
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if err != nil {
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return nil, nil, err
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}
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if resp != nil {
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if resp.StatusCode != http.StatusOK {
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return nil, nil, httpRespToErrorResponse(resp, bucketName, objectName)
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}
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}
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retention := &objectRetention{}
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if err = xml.NewDecoder(resp.Body).Decode(retention); err != nil {
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return nil, nil, err
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}
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return &retention.Mode, &retention.RetainUntilDate, nil
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}
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