gotosocial/vendor/github.com/minio/minio-go/v7/api-restore.go
Dominik Süß 9d0df426da
[feature] S3 support (#674)
* feat: vendor minio client

* feat: introduce storage package with s3 support

* feat: serve s3 files directly

this saves a lot of bandwith as the files are fetched from the object
store directly

* fix: use explicit local storage in tests

* feat: integrate s3 storage with the main server

* fix: add s3 config to cli tests

* docs: explicitly set values in example config

also adds license header to the storage package

* fix: use better http status code on s3 redirect

HTTP 302 Found is the best fit, as it signifies that the resource
requested was found but not under its presumed URL

307/TemporaryRedirect would mean that this resource is usually located
here, not in this case

303/SeeOther indicates that the redirection does not link to the
requested resource but to another page

* refactor: use context in storage driver interface
2022-07-03 12:08:30 +02:00

182 lines
5.7 KiB
Go

/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* (C) 2018-2021 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 minio
import (
"bytes"
"context"
"encoding/xml"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/tags"
)
// RestoreType represents the restore request type
type RestoreType string
const (
// RestoreSelect represents the restore SELECT operation
RestoreSelect = RestoreType("SELECT")
)
// TierType represents a retrieval tier
type TierType string
const (
// TierStandard is the standard retrieval tier
TierStandard = TierType("Standard")
// TierBulk is the bulk retrieval tier
TierBulk = TierType("Bulk")
// TierExpedited is the expedited retrieval tier
TierExpedited = TierType("Expedited")
)
// GlacierJobParameters represents the retrieval tier parameter
type GlacierJobParameters struct {
Tier TierType
}
// Encryption contains the type of server-side encryption used during object retrieval
type Encryption struct {
EncryptionType string
KMSContext string
KMSKeyID string `xml:"KMSKeyId"`
}
// MetadataEntry represents a metadata information of the restored object.
type MetadataEntry struct {
Name string
Value string
}
// S3 holds properties of the copy of the archived object
type S3 struct {
AccessControlList *AccessControlList `xml:"AccessControlList,omitempty"`
BucketName string
Prefix string
CannedACL *string `xml:"CannedACL,omitempty"`
Encryption *Encryption `xml:"Encryption,omitempty"`
StorageClass *string `xml:"StorageClass,omitempty"`
Tagging *tags.Tags `xml:"Tagging,omitempty"`
UserMetadata *MetadataEntry `xml:"UserMetadata,omitempty"`
}
// SelectParameters holds the select request parameters
type SelectParameters struct {
XMLName xml.Name `xml:"SelectParameters"`
ExpressionType QueryExpressionType
Expression string
InputSerialization SelectObjectInputSerialization
OutputSerialization SelectObjectOutputSerialization
}
// OutputLocation holds properties of the copy of the archived object
type OutputLocation struct {
XMLName xml.Name `xml:"OutputLocation"`
S3 S3 `xml:"S3"`
}
// RestoreRequest holds properties of the restore object request
type RestoreRequest struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ RestoreRequest"`
Type *RestoreType `xml:"Type,omitempty"`
Tier *TierType `xml:"Tier,omitempty"`
Days *int `xml:"Days,omitempty"`
GlacierJobParameters *GlacierJobParameters `xml:"GlacierJobParameters,omitempty"`
Description *string `xml:"Description,omitempty"`
SelectParameters *SelectParameters `xml:"SelectParameters,omitempty"`
OutputLocation *OutputLocation `xml:"OutputLocation,omitempty"`
}
// SetDays sets the days parameter of the restore request
func (r *RestoreRequest) SetDays(v int) {
r.Days = &v
}
// SetGlacierJobParameters sets the GlacierJobParameters of the restore request
func (r *RestoreRequest) SetGlacierJobParameters(v GlacierJobParameters) {
r.GlacierJobParameters = &v
}
// SetType sets the type of the restore request
func (r *RestoreRequest) SetType(v RestoreType) {
r.Type = &v
}
// SetTier sets the retrieval tier of the restore request
func (r *RestoreRequest) SetTier(v TierType) {
r.Tier = &v
}
// SetDescription sets the description of the restore request
func (r *RestoreRequest) SetDescription(v string) {
r.Description = &v
}
// SetSelectParameters sets SelectParameters of the restore select request
func (r *RestoreRequest) SetSelectParameters(v SelectParameters) {
r.SelectParameters = &v
}
// SetOutputLocation sets the properties of the copy of the archived object
func (r *RestoreRequest) SetOutputLocation(v OutputLocation) {
r.OutputLocation = &v
}
// RestoreObject is a implementation of https://docs.aws.amazon.com/AmazonS3/latest/API/API_RestoreObject.html AWS S3 API
func (c *Client) RestoreObject(ctx context.Context, bucketName, objectName, versionID string, req RestoreRequest) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
restoreRequestBytes, err := xml.Marshal(req)
if err != nil {
return err
}
urlValues := make(url.Values)
urlValues.Set("restore", "")
if versionID != "" {
urlValues.Set("versionId", versionID)
}
// Execute POST on bucket/object.
resp, err := c.executeMethod(ctx, http.MethodPost, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentMD5Base64: sumMD5Base64(restoreRequestBytes),
contentSHA256Hex: sum256Hex(restoreRequestBytes),
contentBody: bytes.NewReader(restoreRequestBytes),
contentLength: int64(len(restoreRequestBytes)),
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusAccepted && resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}