minio/cmd/bucket-versioning-handler.go
Harshavardhana 4915433bd2
Support bucket versioning (#9377)
- Implement a new xl.json 2.0.0 format to support,
  this moves the entire marshaling logic to POSIX
  layer, top layer always consumes a common FileInfo
  construct which simplifies the metadata reads.
- Implement list object versions
- Migrate to siphash from crchash for new deployments
  for object placements.

Fixes #2111
2020-06-12 20:04:01 -07:00

129 lines
3.9 KiB
Go

/*
* MinIO Cloud Storage, (C) 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 cmd
import (
"encoding/xml"
"io"
"net/http"
humanize "github.com/dustin/go-humanize"
"github.com/gorilla/mux"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/bucket/policy"
"github.com/minio/minio/pkg/bucket/versioning"
)
const (
bucketVersioningConfig = "versioning.xml"
// Maximum size of bucket versioning configuration payload sent to the PutBucketVersioningHandler.
maxBucketVersioningConfigSize = 1 * humanize.MiByte
)
// PutBucketVersioningHandler - PUT Bucket Versioning.
// ----------
func (api objectAPIHandlers) PutBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "PutBucketVersioning")
defer logger.AuditLog(w, r, "PutBucketVersioning", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
// PutBucketVersioning API requires Content-Md5
if _, ok := r.Header[xhttp.ContentMD5]; !ok {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentMD5), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketVersioningAction, bucket, ""); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
v, err := versioning.ParseConfig(io.LimitReader(r.Body, maxBucketVersioningConfigSize))
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
configData, err := xml.Marshal(v)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
if err = globalBucketMetadataSys.Update(bucket, bucketVersioningConfig, configData); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
writeSuccessResponseHeadersOnly(w)
}
// GetBucketVersioningHandler - GET Bucket Versioning.
// ----------
func (api objectAPIHandlers) GetBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "GetBucketVersioning")
defer logger.AuditLog(w, r, "GetBucketVersioning", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
bucket := vars["bucket"]
objectAPI := api.ObjectAPI()
if objectAPI == nil {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
return
}
if s3Error := checkRequestAuthType(ctx, r, policy.GetBucketVersioningAction, bucket, ""); s3Error != ErrNone {
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
return
}
// Check if bucket exists.
if _, err := objectAPI.GetBucketInfo(ctx, bucket); err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
config, err := globalBucketVersioningSys.Get(bucket)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
configData, err := xml.Marshal(config)
if err != nil {
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
return
}
// Write bucket versioning configuration to client
writeSuccessResponseXML(w, configData)
}