gotosocial/vendor/github.com/minio/minio-go/v7/api-bucket-replication.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

291 lines
8.6 KiB
Go

/*
* 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/google/uuid"
"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
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
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
}
// mustGetUUID - get a random UUID.
func mustGetUUID() string {
u, err := uuid.NewRandom()
if err != nil {
return ""
}
return u.String()
}
// 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) (rID string, err error) {
rID = mustGetUUID()
_, err = c.resetBucketReplicationOnTarget(ctx, bucketName, olderThan, "", rID)
if err != nil {
return rID, err
}
return rID, nil
}
// ResetBucketReplicationOnTarget kicks off replication of previously replicated objects if
// ExistingObjectReplication is enabled in the replication config
func (c *Client) ResetBucketReplicationOnTarget(ctx context.Context, bucketName string, olderThan time.Duration, tgtArn string) (replication.ResyncTargetsInfo, error) {
return c.resetBucketReplicationOnTarget(ctx, bucketName, olderThan, tgtArn, mustGetUUID())
}
// ResetBucketReplication kicks off replication of previously replicated objects if ExistingObjectReplication
// is enabled in the replication config
func (c *Client) resetBucketReplicationOnTarget(ctx context.Context, bucketName string, olderThan time.Duration, tgtArn string, resetID string) (rinfo replication.ResyncTargetsInfo, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return
}
// 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())
}
if tgtArn != "" {
urlValues.Set("arn", tgtArn)
}
urlValues.Set("reset-id", resetID)
// 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 rinfo, err
}
if resp.StatusCode != http.StatusOK {
return rinfo, httpRespToErrorResponse(resp, bucketName, "")
}
if err = json.NewDecoder(resp.Body).Decode(&rinfo); err != nil {
return rinfo, err
}
return rinfo, nil
}
// GetBucketReplicationResyncStatus gets the status of replication resync
func (c *Client) GetBucketReplicationResyncStatus(ctx context.Context, bucketName, arn string) (rinfo replication.ResyncTargetsInfo, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return rinfo, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-reset-status", "")
if arn != "" {
urlValues.Set("arn", arn)
}
// 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 rinfo, err
}
if resp.StatusCode != http.StatusOK {
return rinfo, httpRespToErrorResponse(resp, bucketName, "")
}
if err = json.NewDecoder(resp.Body).Decode(&rinfo); err != nil {
return rinfo, err
}
return rinfo, nil
}