mirror of
https://github.com/minio/minio.git
synced 2024-12-26 07:05:55 -05:00
ab7d3cd508
Change distributed locking to allow taking bulk locks
across objects, reduces usually 1000 calls to 1.
Also allows for situations where multiple clients sends
delete requests to objects with following names
```
{1,2,3,4,5}
```
```
{5,4,3,2,1}
```
will block and ensure that we do not fail the request
on each other.
1099 lines
36 KiB
Go
1099 lines
36 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2015-2020 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 cmd
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import (
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"context"
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"encoding/base64"
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"encoding/xml"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"path"
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"path/filepath"
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"strings"
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"github.com/gorilla/mux"
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"github.com/minio/minio-go/v6/pkg/set"
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"github.com/minio/minio/cmd/config/etcd/dns"
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"github.com/minio/minio/cmd/crypto"
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xhttp "github.com/minio/minio/cmd/http"
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"github.com/minio/minio/cmd/logger"
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objectlock "github.com/minio/minio/pkg/bucket/object/lock"
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"github.com/minio/minio/pkg/bucket/policy"
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"github.com/minio/minio/pkg/event"
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"github.com/minio/minio/pkg/handlers"
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"github.com/minio/minio/pkg/hash"
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iampolicy "github.com/minio/minio/pkg/iam/policy"
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"github.com/minio/minio/pkg/sync/errgroup"
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)
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const (
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getBucketVersioningResponse = `<VersioningConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"/>`
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objectLockConfig = "object-lock.xml"
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bucketObjectLockEnabledConfigFile = "object-lock-enabled.json"
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bucketObjectLockEnabledConfig = `{"x-amz-bucket-object-lock-enabled":true}`
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)
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// Check if there are buckets on server without corresponding entry in etcd backend and
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// make entries. Here is the general flow
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// - Range over all the available buckets
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// - Check if a bucket has an entry in etcd backend
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// -- If no, make an entry
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// -- If yes, check if the entry matches local IP check if we
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// need to update the entry then proceed to update
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// -- If yes, check if the IP of entry matches local IP.
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// This means entry is for this instance.
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// -- If IP of the entry doesn't match, this means entry is
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// for another instance. Log an error to console.
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func initFederatorBackend(buckets []BucketInfo, objLayer ObjectLayer) {
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if len(buckets) == 0 {
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return
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}
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// Get buckets in the DNS
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dnsBuckets, err := globalDNSConfig.List()
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if err != nil && err != dns.ErrNoEntriesFound {
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logger.LogIf(context.Background(), err)
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return
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}
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bucketsSet := set.NewStringSet()
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bucketsToBeUpdated := set.NewStringSet()
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bucketsInConflict := set.NewStringSet()
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for _, bucket := range buckets {
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bucketsSet.Add(bucket.Name)
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r, ok := dnsBuckets[bucket.Name]
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if !ok {
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bucketsToBeUpdated.Add(bucket.Name)
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continue
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}
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if !globalDomainIPs.Intersection(set.CreateStringSet(getHostsSlice(r)...)).IsEmpty() {
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if globalDomainIPs.Difference(set.CreateStringSet(getHostsSlice(r)...)).IsEmpty() {
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// No difference in terms of domainIPs and nothing
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// has changed so we don't change anything on the etcd.
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continue
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}
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// if domain IPs intersect then it won't be an empty set.
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// such an intersection means that bucket exists on etcd.
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// but if we do see a difference with local domain IPs with
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// hostSlice from etcd then we should update with newer
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// domainIPs, we proceed to do that here.
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bucketsToBeUpdated.Add(bucket.Name)
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continue
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}
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// No IPs seem to intersect, this means that bucket exists but has
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// different IP addresses perhaps from a different deployment.
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// bucket names are globally unique in federation at a given
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// path prefix, name collision is not allowed. We simply log
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// an error and continue.
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bucketsInConflict.Add(bucket.Name)
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}
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// Add/update buckets that are not registered with the DNS
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g := errgroup.WithNErrs(len(buckets))
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bucketsToBeUpdatedSlice := bucketsToBeUpdated.ToSlice()
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for index := range bucketsToBeUpdatedSlice {
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index := index
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g.Go(func() error {
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return globalDNSConfig.Put(bucketsToBeUpdatedSlice[index])
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}, index)
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}
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for _, err := range g.Wait() {
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if err != nil {
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logger.LogIf(context.Background(), err)
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}
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}
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for _, bucket := range bucketsInConflict.ToSlice() {
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logger.LogIf(context.Background(), fmt.Errorf("Unable to add bucket DNS entry for bucket %s, an entry exists for the same bucket. Use one of these IP addresses %v to access the bucket", bucket, globalDomainIPs.ToSlice()))
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}
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// Remove buckets that are in DNS for this server, but aren't local
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for bucket, records := range dnsBuckets {
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if bucketsSet.Contains(bucket) {
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continue
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}
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if globalDomainIPs.Intersection(set.CreateStringSet(getHostsSlice(records)...)).IsEmpty() {
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// This is not for our server, so we can continue
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continue
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}
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// We go to here, so we know the bucket no longer exists,
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// but is registered in DNS to this server
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if err = globalDNSConfig.Delete(bucket); err != nil {
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logger.LogIf(context.Background(), fmt.Errorf("Failed to remove DNS entry for %s due to %w",
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bucket, err))
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}
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}
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}
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// GetBucketLocationHandler - GET Bucket location.
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// -------------------------
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// This operation returns bucket location.
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func (api objectAPIHandlers) GetBucketLocationHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "GetBucketLocation")
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defer logger.AuditLog(w, r, "GetBucketLocation", mustGetClaimsFromToken(r))
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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objectAPI := api.ObjectAPI()
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if objectAPI == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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return
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}
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if s3Error := checkRequestAuthType(ctx, r, policy.GetBucketLocationAction, bucket, ""); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
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return
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}
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getBucketInfo := objectAPI.GetBucketInfo
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if _, err := getBucketInfo(ctx, bucket); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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// Generate response.
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encodedSuccessResponse := encodeResponse(LocationResponse{})
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// Get current region.
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region := globalServerRegion
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if region != globalMinioDefaultRegion {
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encodedSuccessResponse = encodeResponse(LocationResponse{
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Location: region,
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})
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}
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// Write success response.
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writeSuccessResponseXML(w, encodedSuccessResponse)
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}
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// ListMultipartUploadsHandler - GET Bucket (List Multipart uploads)
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// -------------------------
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// This operation lists in-progress multipart uploads. An in-progress
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// multipart upload is a multipart upload that has been initiated,
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// using the Initiate Multipart Upload request, but has not yet been
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// completed or aborted. This operation returns at most 1,000 multipart
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// uploads in the response.
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//
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func (api objectAPIHandlers) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ListMultipartUploads")
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defer logger.AuditLog(w, r, "ListMultipartUploads", mustGetClaimsFromToken(r))
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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objectAPI := api.ObjectAPI()
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if objectAPI == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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return
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}
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if s3Error := checkRequestAuthType(ctx, r, policy.ListBucketMultipartUploadsAction, bucket, ""); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
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return
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}
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prefix, keyMarker, uploadIDMarker, delimiter, maxUploads, encodingType, errCode := getBucketMultipartResources(r.URL.Query())
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if errCode != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(errCode), r.URL, guessIsBrowserReq(r))
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return
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}
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if maxUploads < 0 {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxUploads), r.URL, guessIsBrowserReq(r))
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return
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}
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if keyMarker != "" {
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// Marker not common with prefix is not implemented.
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if !HasPrefix(keyMarker, prefix) {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
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return
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}
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}
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listMultipartsInfo, err := objectAPI.ListMultipartUploads(ctx, bucket, prefix, keyMarker, uploadIDMarker, delimiter, maxUploads)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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// generate response
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response := generateListMultipartUploadsResponse(bucket, listMultipartsInfo, encodingType)
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encodedSuccessResponse := encodeResponse(response)
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// write success response.
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writeSuccessResponseXML(w, encodedSuccessResponse)
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}
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// ListBucketsHandler - GET Service.
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// -----------
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// This implementation of the GET operation returns a list of all buckets
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// owned by the authenticated sender of the request.
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func (api objectAPIHandlers) ListBucketsHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ListBuckets")
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defer logger.AuditLog(w, r, "ListBuckets", mustGetClaimsFromToken(r))
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objectAPI := api.ObjectAPI()
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if objectAPI == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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return
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}
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listBuckets := objectAPI.ListBuckets
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accessKey, owner, s3Error := checkRequestAuthTypeToAccessKey(ctx, r, policy.ListAllMyBucketsAction, "", "")
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if s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
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return
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}
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// If etcd, dns federation configured list buckets from etcd.
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var bucketsInfo []BucketInfo
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if globalDNSConfig != nil && globalBucketFederation {
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dnsBuckets, err := globalDNSConfig.List()
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if err != nil && err != dns.ErrNoEntriesFound {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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for _, dnsRecords := range dnsBuckets {
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bucketsInfo = append(bucketsInfo, BucketInfo{
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Name: dnsRecords[0].Key,
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Created: dnsRecords[0].CreationDate,
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})
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}
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} else {
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// Invoke the list buckets.
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var err error
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bucketsInfo, err = listBuckets(ctx)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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}
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// Set prefix value for "s3:prefix" policy conditionals.
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r.Header.Set("prefix", "")
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// Set delimiter value for "s3:delimiter" policy conditionals.
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r.Header.Set("delimiter", SlashSeparator)
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// err will be nil here as we already called this function
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// earlier in this request.
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claims, _ := getClaimsFromToken(r)
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var newBucketsInfo []BucketInfo
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for _, bucketInfo := range bucketsInfo {
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if globalIAMSys.IsAllowed(iampolicy.Args{
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AccountName: accessKey,
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Action: iampolicy.ListBucketAction,
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BucketName: bucketInfo.Name,
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ConditionValues: getConditionValues(r, "", accessKey, claims),
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IsOwner: owner,
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ObjectName: "",
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Claims: claims,
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}) {
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newBucketsInfo = append(newBucketsInfo, bucketInfo)
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}
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}
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// Generate response.
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response := generateListBucketsResponse(newBucketsInfo)
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encodedSuccessResponse := encodeResponse(response)
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// Write response.
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writeSuccessResponseXML(w, encodedSuccessResponse)
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}
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// DeleteMultipleObjectsHandler - deletes multiple objects.
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func (api objectAPIHandlers) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "DeleteMultipleObjects")
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defer logger.AuditLog(w, r, "DeleteMultipleObjects", mustGetClaimsFromToken(r))
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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objectAPI := api.ObjectAPI()
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if objectAPI == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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return
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}
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// Content-Length is required and should be non-zero
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// http://docs.aws.amazon.com/AmazonS3/latest/API/multiobjectdeleteapi.html
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if r.ContentLength <= 0 {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
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return
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}
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// Content-Md5 is requied should be set
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// http://docs.aws.amazon.com/AmazonS3/latest/API/multiobjectdeleteapi.html
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if _, ok := r.Header[xhttp.ContentMD5]; !ok {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentMD5), r.URL, guessIsBrowserReq(r))
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return
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}
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// The max. XML contains 100000 object names (each at most 1024 bytes long) + XML overhead
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const maxBodySize = 2 * 100000 * 1024
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// Unmarshal list of keys to be deleted.
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deleteObjects := &DeleteObjectsRequest{}
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if err := xmlDecoder(r.Body, deleteObjects, maxBodySize); err != nil {
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logger.LogIf(ctx, err, logger.Application)
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedXML), r.URL, guessIsBrowserReq(r))
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return
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}
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deleteObjectsFn := objectAPI.DeleteObjects
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if api.CacheAPI() != nil {
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deleteObjectsFn = api.CacheAPI().DeleteObjects
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}
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var objectsToDelete = map[string]int{}
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getObjectInfoFn := objectAPI.GetObjectInfo
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if api.CacheAPI() != nil {
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getObjectInfoFn = api.CacheAPI().GetObjectInfo
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}
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var dErrs = make([]APIErrorCode, len(deleteObjects.Objects))
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for index, object := range deleteObjects.Objects {
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if dErrs[index] = checkRequestAuthType(ctx, r, policy.DeleteObjectAction, bucket, object.ObjectName); dErrs[index] != ErrNone {
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if dErrs[index] == ErrSignatureDoesNotMatch || dErrs[index] == ErrInvalidAccessKeyID {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(dErrs[index]), r.URL, guessIsBrowserReq(r))
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return
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}
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continue
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}
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govBypassPerms := checkRequestAuthType(ctx, r, policy.BypassGovernanceRetentionAction, bucket, object.ObjectName)
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if _, err := enforceRetentionBypassForDelete(ctx, r, bucket, object.ObjectName, getObjectInfoFn, govBypassPerms); err != ErrNone {
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dErrs[index] = err
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continue
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}
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// Avoid duplicate objects, we use map to filter them out.
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if _, ok := objectsToDelete[object.ObjectName]; !ok {
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objectsToDelete[object.ObjectName] = index
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}
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}
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toNames := func(input map[string]int) (output []string) {
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output = make([]string, len(input))
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idx := 0
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for name := range input {
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output[idx] = name
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idx++
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}
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return
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}
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deleteList := toNames(objectsToDelete)
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errs, err := deleteObjectsFn(ctx, bucket, deleteList)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
|
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}
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|
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for i, objName := range deleteList {
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dIdx := objectsToDelete[objName]
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dErrs[dIdx] = toAPIErrorCode(ctx, errs[i])
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}
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|
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// Collect deleted objects and errors if any.
|
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var deletedObjects []ObjectIdentifier
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var deleteErrors []DeleteError
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for index, errCode := range dErrs {
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object := deleteObjects.Objects[index]
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// Success deleted objects are collected separately.
|
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if errCode == ErrNone || errCode == ErrNoSuchKey {
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deletedObjects = append(deletedObjects, object)
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continue
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}
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apiErr := getAPIError(errCode)
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// Error during delete should be collected separately.
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deleteErrors = append(deleteErrors, DeleteError{
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Code: apiErr.Code,
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Message: apiErr.Description,
|
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Key: object.ObjectName,
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})
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}
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|
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// Generate response
|
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response := generateMultiDeleteResponse(deleteObjects.Quiet, deletedObjects, deleteErrors)
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encodedSuccessResponse := encodeResponse(response)
|
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|
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// Write success response.
|
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writeSuccessResponseXML(w, encodedSuccessResponse)
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|
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// Notify deleted event for objects.
|
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for _, dobj := range deletedObjects {
|
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sendEvent(eventArgs{
|
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EventName: event.ObjectRemovedDelete,
|
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BucketName: bucket,
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Object: ObjectInfo{
|
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Name: dobj.ObjectName,
|
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},
|
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ReqParams: extractReqParams(r),
|
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RespElements: extractRespElements(w),
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UserAgent: r.UserAgent(),
|
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Host: handlers.GetSourceIP(r),
|
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})
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}
|
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}
|
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|
|
// PutBucketHandler - PUT Bucket
|
|
// ----------
|
|
// This implementation of the PUT operation creates a new bucket for authenticated request
|
|
func (api objectAPIHandlers) PutBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "PutBucket")
|
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|
|
defer logger.AuditLog(w, r, "PutBucket", mustGetClaimsFromToken(r))
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|
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objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
|
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return
|
|
}
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
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|
|
objectLockEnabled := false
|
|
if vs, found := r.Header[http.CanonicalHeaderKey("x-amz-bucket-object-lock-enabled")]; found {
|
|
v := strings.ToLower(strings.Join(vs, ""))
|
|
if v != "true" && v != "false" {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
objectLockEnabled = v == "true"
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(ctx, r, policy.CreateBucketAction, bucket, ""); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Parse incoming location constraint.
|
|
location, s3Error := parseLocationConstraint(r)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Validate if location sent by the client is valid, reject
|
|
// requests which do not follow valid region requirements.
|
|
if !isValidLocation(location) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRegion), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if globalDNSConfig != nil {
|
|
sr, err := globalDNSConfig.Get(bucket)
|
|
if err != nil {
|
|
if err == dns.ErrNoEntriesFound {
|
|
// Proceed to creating a bucket.
|
|
if err = objectAPI.MakeBucketWithLocation(ctx, bucket, location); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if objectLockEnabled {
|
|
configFile := path.Join(bucketConfigPrefix, bucket, bucketObjectLockEnabledConfigFile)
|
|
if err = saveConfig(ctx, objectAPI, configFile, []byte(bucketObjectLockEnabledConfig)); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
}
|
|
|
|
if err = globalDNSConfig.Put(bucket); err != nil {
|
|
objectAPI.DeleteBucket(ctx, bucket)
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Make sure to add Location information here only for bucket
|
|
w.Header().Set(xhttp.Location,
|
|
getObjectLocation(r, globalDomainNames, bucket, ""))
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
return
|
|
}
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
|
|
}
|
|
apiErr := ErrBucketAlreadyExists
|
|
if !globalDomainIPs.Intersection(set.CreateStringSet(getHostsSlice(sr)...)).IsEmpty() {
|
|
apiErr = ErrBucketAlreadyOwnedByYou
|
|
}
|
|
// No IPs seem to intersect, this means that bucket exists but has
|
|
// different IP addresses perhaps from a different deployment.
|
|
// bucket names are globally unique in federation at a given
|
|
// path prefix, name collision is not allowed. Return appropriate error.
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(apiErr), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Proceed to creating a bucket.
|
|
err := objectAPI.MakeBucketWithLocation(ctx, bucket, location)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if objectLockEnabled && !globalIsGateway {
|
|
configFile := path.Join(bucketConfigPrefix, bucket, bucketObjectLockEnabledConfigFile)
|
|
if err = saveConfig(ctx, objectAPI, configFile, []byte(bucketObjectLockEnabledConfig)); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
globalBucketObjectLockConfig.Set(bucket, objectlock.Retention{})
|
|
globalNotificationSys.PutBucketObjectLockConfig(ctx, bucket, objectlock.Retention{})
|
|
}
|
|
|
|
// Make sure to add Location information here only for bucket
|
|
w.Header().Set(xhttp.Location, path.Clean(r.URL.Path)) // Clean any trailing slashes.
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// PostPolicyBucketHandler - POST policy
|
|
// ----------
|
|
// This implementation of the POST operation handles object creation with a specified
|
|
// signature policy in multipart/form-data
|
|
func (api objectAPIHandlers) PostPolicyBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "PostPolicyBucket")
|
|
|
|
defer logger.AuditLog(w, r, "PostPolicyBucket", mustGetClaimsFromToken(r))
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if crypto.S3KMS.IsRequested(r.Header) { // SSE-KMS is not supported
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
if !api.EncryptionEnabled() && crypto.IsRequested(r.Header) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
bucket := mux.Vars(r)["bucket"]
|
|
|
|
// To detect if the client has disconnected.
|
|
r.Body = &detectDisconnect{r.Body, r.Context().Done()}
|
|
|
|
// Require Content-Length to be set in the request
|
|
size := r.ContentLength
|
|
if size < 0 {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
resource, err := getResource(r.URL.Path, r.Host, globalDomainNames)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
// Make sure that the URL does not contain object name.
|
|
if bucket != filepath.Clean(resource[1:]) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Here the parameter is the size of the form data that should
|
|
// be loaded in memory, the remaining being put in temporary files.
|
|
reader, err := r.MultipartReader()
|
|
if err != nil {
|
|
logger.LogIf(ctx, err)
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Read multipart data and save in memory and in the disk if needed
|
|
form, err := reader.ReadForm(maxFormMemory)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err, logger.Application)
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Remove all tmp files created during multipart upload
|
|
defer form.RemoveAll()
|
|
|
|
// Extract all form fields
|
|
fileBody, fileName, fileSize, formValues, err := extractPostPolicyFormValues(ctx, form)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err, logger.Application)
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Check if file is provided, error out otherwise.
|
|
if fileBody == nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrPOSTFileRequired), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Close multipart file
|
|
defer fileBody.Close()
|
|
|
|
formValues.Set("Bucket", bucket)
|
|
|
|
if fileName != "" && strings.Contains(formValues.Get("Key"), "${filename}") {
|
|
// S3 feature to replace ${filename} found in Key form field
|
|
// by the filename attribute passed in multipart
|
|
formValues.Set("Key", strings.Replace(formValues.Get("Key"), "${filename}", fileName, -1))
|
|
}
|
|
object := formValues.Get("Key")
|
|
|
|
successRedirect := formValues.Get("success_action_redirect")
|
|
successStatus := formValues.Get("success_action_status")
|
|
var redirectURL *url.URL
|
|
if successRedirect != "" {
|
|
redirectURL, err = url.Parse(successRedirect)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
}
|
|
|
|
// Verify policy signature.
|
|
errCode := doesPolicySignatureMatch(formValues)
|
|
if errCode != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(errCode), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
policyBytes, err := base64.StdEncoding.DecodeString(formValues.Get("Policy"))
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Handle policy if it is set.
|
|
if len(policyBytes) > 0 {
|
|
|
|
postPolicyForm, err := parsePostPolicyForm(string(policyBytes))
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrPostPolicyConditionInvalidFormat), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Make sure formValues adhere to policy restrictions.
|
|
if err = checkPostPolicy(formValues, postPolicyForm); err != nil {
|
|
writeCustomErrorResponseXML(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), err.Error(), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Ensure that the object size is within expected range, also the file size
|
|
// should not exceed the maximum single Put size (5 GiB)
|
|
lengthRange := postPolicyForm.Conditions.ContentLengthRange
|
|
if lengthRange.Valid {
|
|
if fileSize < lengthRange.Min {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, errDataTooSmall), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if fileSize > lengthRange.Max || isMaxObjectSize(fileSize) {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, errDataTooLarge), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// Extract metadata to be saved from received Form.
|
|
metadata := make(map[string]string)
|
|
err = extractMetadataFromMap(ctx, formValues, metadata)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
hashReader, err := hash.NewReader(fileBody, fileSize, "", "", fileSize, globalCLIContext.StrictS3Compat)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err)
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
rawReader := hashReader
|
|
pReader := NewPutObjReader(rawReader, nil, nil)
|
|
var objectEncryptionKey []byte
|
|
|
|
// Check if bucket encryption is enabled
|
|
_, encEnabled := globalBucketSSEConfigSys.Get(bucket)
|
|
// This request header needs to be set prior to setting ObjectOptions
|
|
if (globalAutoEncryption || encEnabled) && !crypto.SSEC.IsRequested(r.Header) {
|
|
r.Header.Add(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
|
|
}
|
|
// get gateway encryption options
|
|
var opts ObjectOptions
|
|
opts, err = putOpts(ctx, r, bucket, object, metadata)
|
|
if err != nil {
|
|
writeErrorResponseHeadersOnly(w, toAPIError(ctx, err))
|
|
return
|
|
}
|
|
if objectAPI.IsEncryptionSupported() {
|
|
if crypto.IsRequested(formValues) && !HasSuffix(object, SlashSeparator) { // handle SSE requests
|
|
if crypto.SSECopy.IsRequested(r.Header) {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
var reader io.Reader
|
|
var key []byte
|
|
if crypto.SSEC.IsRequested(formValues) {
|
|
key, err = ParseSSECustomerHeader(formValues)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
}
|
|
reader, objectEncryptionKey, err = newEncryptReader(hashReader, key, bucket, object, metadata, crypto.S3.IsRequested(formValues))
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
info := ObjectInfo{Size: fileSize}
|
|
// do not try to verify encrypted content
|
|
hashReader, err = hash.NewReader(reader, info.EncryptedSize(), "", "", fileSize, globalCLIContext.StrictS3Compat)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
pReader = NewPutObjReader(rawReader, hashReader, objectEncryptionKey)
|
|
}
|
|
}
|
|
|
|
objInfo, err := objectAPI.PutObject(ctx, bucket, object, pReader, opts)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
location := getObjectLocation(r, globalDomainNames, bucket, object)
|
|
w.Header()[xhttp.ETag] = []string{`"` + objInfo.ETag + `"`}
|
|
w.Header().Set(xhttp.Location, location)
|
|
|
|
// Notify object created event.
|
|
defer sendEvent(eventArgs{
|
|
EventName: event.ObjectCreatedPost,
|
|
BucketName: objInfo.Bucket,
|
|
Object: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
RespElements: extractRespElements(w),
|
|
UserAgent: r.UserAgent(),
|
|
Host: handlers.GetSourceIP(r),
|
|
})
|
|
|
|
if successRedirect != "" {
|
|
// Replace raw query params..
|
|
redirectURL.RawQuery = getRedirectPostRawQuery(objInfo)
|
|
writeRedirectSeeOther(w, redirectURL.String())
|
|
return
|
|
}
|
|
|
|
// Decide what http response to send depending on success_action_status parameter
|
|
switch successStatus {
|
|
case "201":
|
|
resp := encodeResponse(PostResponse{
|
|
Bucket: objInfo.Bucket,
|
|
Key: objInfo.Name,
|
|
ETag: `"` + objInfo.ETag + `"`,
|
|
Location: location,
|
|
})
|
|
writeResponse(w, http.StatusCreated, resp, "application/xml")
|
|
case "200":
|
|
writeSuccessResponseHeadersOnly(w)
|
|
default:
|
|
writeSuccessNoContent(w)
|
|
}
|
|
}
|
|
|
|
// HeadBucketHandler - HEAD Bucket
|
|
// ----------
|
|
// This operation is useful to determine if a bucket exists.
|
|
// The operation returns a 200 OK if the bucket exists and you
|
|
// have permission to access it. Otherwise, the operation might
|
|
// return responses such as 404 Not Found and 403 Forbidden.
|
|
func (api objectAPIHandlers) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "HeadBucket")
|
|
|
|
defer logger.AuditLog(w, r, "HeadBucket", mustGetClaimsFromToken(r))
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponseHeadersOnly(w, errorCodes.ToAPIErr(ErrServerNotInitialized))
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(ctx, r, policy.ListBucketAction, bucket, ""); s3Error != ErrNone {
|
|
writeErrorResponseHeadersOnly(w, errorCodes.ToAPIErr(s3Error))
|
|
return
|
|
}
|
|
|
|
getBucketInfo := objectAPI.GetBucketInfo
|
|
|
|
if _, err := getBucketInfo(ctx, bucket); err != nil {
|
|
writeErrorResponseHeadersOnly(w, toAPIError(ctx, err))
|
|
return
|
|
}
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// DeleteBucketHandler - Delete bucket
|
|
func (api objectAPIHandlers) DeleteBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "DeleteBucket")
|
|
|
|
defer logger.AuditLog(w, r, "DeleteBucket", 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.DeleteBucketAction, bucket, ""); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
deleteBucket := objectAPI.DeleteBucket
|
|
|
|
// Attempt to delete bucket.
|
|
if err := deleteBucket(ctx, bucket); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if globalDNSConfig != nil {
|
|
if err := globalDNSConfig.Delete(bucket); err != nil {
|
|
// Deleting DNS entry failed, attempt to create the bucket again.
|
|
objectAPI.MakeBucketWithLocation(ctx, bucket, "")
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
}
|
|
|
|
globalNotificationSys.DeleteBucket(ctx, bucket)
|
|
|
|
// Write success response.
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// PutBucketVersioningHandler - PUT Bucket Versioning.
|
|
// ----------
|
|
// No-op. Available for API compatibility.
|
|
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
|
|
}
|
|
|
|
getBucketInfo := objectAPI.GetBucketInfo
|
|
if _, err := getBucketInfo(ctx, bucket); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Write success response.
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// GetBucketVersioningHandler - GET Bucket Versioning.
|
|
// ----------
|
|
// No-op. Available for API compatibility.
|
|
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
|
|
}
|
|
|
|
getBucketInfo := objectAPI.GetBucketInfo
|
|
if _, err := getBucketInfo(ctx, bucket); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, []byte(getBucketVersioningResponse))
|
|
}
|
|
|
|
// PutBucketObjectLockConfigHandler - PUT Bucket object lock configuration.
|
|
// ----------
|
|
// Places an Object Lock configuration on the specified bucket. The rule
|
|
// specified in the Object Lock configuration will be applied by default
|
|
// to every new object placed in the specified bucket.
|
|
func (api objectAPIHandlers) PutBucketObjectLockConfigHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "PutBucketObjectLockConfig")
|
|
|
|
defer logger.AuditLog(w, r, "PutBucketObjectLockConfig", 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
|
|
}
|
|
|
|
// Deny if WORM is enabled
|
|
if globalWORMEnabled {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketObjectLockConfigurationAction, bucket, ""); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
config, err := objectlock.ParseObjectLockConfig(r.Body)
|
|
if err != nil {
|
|
apiErr := errorCodes.ToAPIErr(ErrMalformedXML)
|
|
apiErr.Description = err.Error()
|
|
writeErrorResponse(ctx, w, apiErr, r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
configFile := path.Join(bucketConfigPrefix, bucket, bucketObjectLockEnabledConfigFile)
|
|
configData, err := readConfig(ctx, objectAPI, configFile)
|
|
if err != nil {
|
|
aerr := toAPIError(ctx, err)
|
|
if err == errConfigNotFound {
|
|
aerr = errorCodes.ToAPIErr(ErrObjectLockConfigurationNotAllowed)
|
|
}
|
|
writeErrorResponse(ctx, w, aerr, r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if string(configData) != bucketObjectLockEnabledConfig {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInternalError), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
data, err := xml.Marshal(config)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
configFile = path.Join(bucketConfigPrefix, bucket, objectLockConfig)
|
|
if err = saveConfig(ctx, objectAPI, configFile, data); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
if config.Rule != nil {
|
|
retention := config.ToRetention()
|
|
globalBucketObjectLockConfig.Set(bucket, retention)
|
|
globalNotificationSys.PutBucketObjectLockConfig(ctx, bucket, retention)
|
|
} else {
|
|
globalBucketObjectLockConfig.Remove(bucket)
|
|
globalNotificationSys.RemoveBucketObjectLockConfig(ctx, bucket)
|
|
}
|
|
|
|
// Write success response.
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// GetBucketObjectLockConfigHandler - GET Bucket object lock configuration.
|
|
// ----------
|
|
// Gets the Object Lock configuration for a bucket. The rule specified in
|
|
// the Object Lock configuration will be applied by default to every new
|
|
// object placed in the specified bucket.
|
|
func (api objectAPIHandlers) GetBucketObjectLockConfigHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "GetBucketObjectLockConfig")
|
|
|
|
defer logger.AuditLog(w, r, "GetBucketObjectLockConfig", 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
|
|
}
|
|
// check if user has permissions to perform this operation
|
|
if s3Error := checkRequestAuthType(ctx, r, policy.GetBucketObjectLockConfigurationAction, bucket, ""); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
configFile := path.Join(bucketConfigPrefix, bucket, bucketObjectLockEnabledConfigFile)
|
|
configData, err := readConfig(ctx, objectAPI, configFile)
|
|
if err != nil {
|
|
var aerr APIError
|
|
if err == errConfigNotFound {
|
|
aerr = errorCodes.ToAPIErr(ErrMethodNotAllowed)
|
|
} else {
|
|
aerr = toAPIError(ctx, err)
|
|
}
|
|
writeErrorResponse(ctx, w, aerr, r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if string(configData) != bucketObjectLockEnabledConfig {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInternalError), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
configFile = path.Join(bucketConfigPrefix, bucket, objectLockConfig)
|
|
configData, err = readConfig(ctx, objectAPI, configFile)
|
|
if err != nil {
|
|
if err != errConfigNotFound {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
|
|
if configData, err = xml.Marshal(objectlock.NewObjectLockConfig()); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
|
|
return
|
|
}
|
|
}
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, configData)
|
|
}
|