forgejo-federation/vendor/github.com/minio/minio-go/v7/api-bucket-replication.go
6543 fae07cbc8f
Update Vendor (#16325)
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2021-07-04 04:06:10 +02:00

228 lines
6.4 KiB
Go
Vendored

/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 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/json"
"encoding/xml"
"io/ioutil"
"net/http"
"net/url"
"time"
"github.com/minio/minio-go/v7/pkg/replication"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// RemoveBucketReplication removes a replication config on an existing bucket.
func (c Client) RemoveBucketReplication(ctx context.Context, bucketName string) error {
return c.removeBucketReplication(ctx, bucketName)
}
// SetBucketReplication sets a replication config on an existing bucket.
func (c Client) SetBucketReplication(ctx context.Context, bucketName string, cfg replication.Config) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// If replication is empty then delete it.
if cfg.Empty() {
return c.removeBucketReplication(ctx, bucketName)
}
// Save the updated replication.
return c.putBucketReplication(ctx, bucketName, cfg)
}
// Saves a new bucket replication.
func (c Client) putBucketReplication(ctx context.Context, bucketName string, cfg replication.Config) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication", "")
replication, err := xml.Marshal(cfg)
if err != nil {
return err
}
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(replication),
contentLength: int64(len(replication)),
contentMD5Base64: sumMD5Base64(replication),
}
// Execute PUT to upload a new bucket replication config.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// Remove replication from a bucket.
func (c Client) removeBucketReplication(ctx context.Context, bucketName string) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication", "")
// Execute DELETE on objectName.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
return nil
}
// GetBucketReplication fetches bucket replication configuration.If config is not
// found, returns empty config with nil error.
func (c Client) GetBucketReplication(ctx context.Context, bucketName string) (cfg replication.Config, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return cfg, err
}
bucketReplicationCfg, err := c.getBucketReplication(ctx, bucketName)
if err != nil {
errResponse := ToErrorResponse(err)
if errResponse.Code == "ReplicationConfigurationNotFoundError" {
return cfg, nil
}
return cfg, err
}
return bucketReplicationCfg, nil
}
// Request server for current bucket replication config.
func (c Client) getBucketReplication(ctx context.Context, bucketName string) (cfg replication.Config, err error) {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication", "")
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return cfg, err
}
if resp.StatusCode != http.StatusOK {
return cfg, httpRespToErrorResponse(resp, bucketName, "")
}
if err = xmlDecoder(resp.Body, &cfg); err != nil {
return cfg, err
}
return cfg, nil
}
// GetBucketReplicationMetrics fetches bucket replication status metrics
func (c Client) GetBucketReplicationMetrics(ctx context.Context, bucketName string) (s replication.Metrics, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return s, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-metrics", "")
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return s, err
}
if resp.StatusCode != http.StatusOK {
return s, httpRespToErrorResponse(resp, bucketName, "")
}
respBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return s, err
}
if err := json.Unmarshal(respBytes, &s); err != nil {
return s, err
}
return s, nil
}
// ResetBucketReplication kicks off replication of previously replicated objects if ExistingObjectReplication
// is enabled in the replication config
func (c Client) ResetBucketReplication(ctx context.Context, bucketName string, olderThan time.Duration) (resetID string, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return "", err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-reset", "")
if olderThan > 0 {
urlValues.Set("older-than", olderThan.String())
}
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return "", err
}
if resp.StatusCode != http.StatusOK {
return "", httpRespToErrorResponse(resp, bucketName, "")
}
respBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
if err := json.Unmarshal(respBytes, &resetID); err != nil {
return "", err
}
return resetID, nil
}