mirror of https://github.com/minio/minio.git
1216 lines
39 KiB
Go
1216 lines
39 KiB
Go
// Copyright (c) 2015-2022 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"bufio"
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"context"
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"encoding/xml"
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"io"
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"net/http"
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"net/url"
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"sort"
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"strconv"
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"strings"
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"time"
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"github.com/google/uuid"
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"github.com/minio/minio-go/v7/pkg/encrypt"
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"github.com/minio/minio-go/v7/pkg/tags"
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"github.com/minio/minio/internal/amztime"
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sse "github.com/minio/minio/internal/bucket/encryption"
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objectlock "github.com/minio/minio/internal/bucket/object/lock"
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"github.com/minio/minio/internal/bucket/replication"
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"github.com/minio/minio/internal/config/dns"
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"github.com/minio/minio/internal/config/storageclass"
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"github.com/minio/minio/internal/crypto"
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"github.com/minio/minio/internal/etag"
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"github.com/minio/minio/internal/event"
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"github.com/minio/minio/internal/fips"
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"github.com/minio/minio/internal/handlers"
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"github.com/minio/minio/internal/hash"
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xhttp "github.com/minio/minio/internal/http"
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"github.com/minio/minio/internal/logger"
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"github.com/minio/mux"
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"github.com/minio/pkg/bucket/policy"
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iampolicy "github.com/minio/pkg/iam/policy"
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"github.com/minio/sio"
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)
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// Multipart objectAPIHandlers
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// NewMultipartUploadHandler - New multipart upload.
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// Notice: The S3 client can send secret keys in headers for encryption related jobs,
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// the handler should ensure to remove these keys before sending them to the object layer.
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// Currently these keys are:
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// - X-Amz-Server-Side-Encryption-Customer-Key
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// - X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key
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func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "NewMultipartUpload")
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defer logger.AuditLog(ctx, w, r, 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)
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return
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}
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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object, err := unescapePath(vars["object"])
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, bucket, object); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
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return
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}
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// Check if bucket encryption is enabled
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sseConfig, _ := globalBucketSSEConfigSys.Get(bucket)
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sseConfig.Apply(r.Header, sse.ApplyOptions{
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AutoEncrypt: globalAutoEncryption,
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})
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// Validate storage class metadata if present
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if sc := r.Header.Get(xhttp.AmzStorageClass); sc != "" {
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if !storageclass.IsValid(sc) {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL)
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return
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}
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}
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encMetadata := map[string]string{}
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if crypto.Requested(r.Header) {
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if crypto.SSEC.IsRequested(r.Header) && isReplicationEnabled(ctx, bucket) {
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writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParametersSSEC), r.URL)
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return
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}
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if err = setEncryptionMetadata(r, bucket, object, encMetadata); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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// Set this for multipart only operations, we need to differentiate during
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// decryption if the file was actually multipart or not.
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encMetadata[ReservedMetadataPrefix+"Encrypted-Multipart"] = ""
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}
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// Extract metadata that needs to be saved.
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metadata, err := extractMetadata(ctx, r)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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if objTags := r.Header.Get(xhttp.AmzObjectTagging); objTags != "" {
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if _, err := tags.ParseObjectTags(objTags); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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metadata[xhttp.AmzObjectTagging] = objTags
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}
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retPerms := isPutActionAllowed(ctx, getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectRetentionAction)
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holdPerms := isPutActionAllowed(ctx, getRequestAuthType(r), bucket, object, r, iampolicy.PutObjectLegalHoldAction)
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getObjectInfo := objectAPI.GetObjectInfo
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if api.CacheAPI() != nil {
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getObjectInfo = api.CacheAPI().GetObjectInfo
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}
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retentionMode, retentionDate, legalHold, s3Err := checkPutObjectLockAllowed(ctx, r, bucket, object, getObjectInfo, retPerms, holdPerms)
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if s3Err == ErrNone && retentionMode.Valid() {
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metadata[strings.ToLower(xhttp.AmzObjectLockMode)] = string(retentionMode)
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metadata[strings.ToLower(xhttp.AmzObjectLockRetainUntilDate)] = amztime.ISO8601Format(retentionDate.UTC())
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}
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if s3Err == ErrNone && legalHold.Status.Valid() {
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metadata[strings.ToLower(xhttp.AmzObjectLockLegalHold)] = string(legalHold.Status)
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}
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if s3Err != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
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return
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}
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if dsc := mustReplicate(ctx, bucket, object, getMustReplicateOptions(ObjectInfo{
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UserDefined: metadata,
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}, replication.ObjectReplicationType, ObjectOptions{})); dsc.ReplicateAny() {
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metadata[ReservedMetadataPrefixLower+ReplicationTimestamp] = UTCNow().Format(time.RFC3339Nano)
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metadata[ReservedMetadataPrefixLower+ReplicationStatus] = dsc.PendingStatus()
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}
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// We need to preserve the encryption headers set in EncryptRequest,
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// so we do not want to override them, copy them instead.
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for k, v := range encMetadata {
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metadata[k] = v
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}
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// Ensure that metadata does not contain sensitive information
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crypto.RemoveSensitiveEntries(metadata)
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if isCompressible(r.Header, object) {
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// Storing the compression metadata.
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metadata[ReservedMetadataPrefix+"compression"] = compressionAlgorithmV2
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}
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opts, err := putOpts(ctx, r, bucket, object, metadata)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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if !opts.MTime.IsZero() && opts.PreserveETag != "" {
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opts.CheckPrecondFn = func(oi ObjectInfo) bool {
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if _, err := DecryptObjectInfo(&oi, r); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return true
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}
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return checkPreconditionsPUT(ctx, w, r, oi, opts)
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}
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}
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checksumType := hash.NewChecksumType(r.Header.Get(xhttp.AmzChecksumAlgo))
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if checksumType.Is(hash.ChecksumInvalid) {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequestParameter), r.URL)
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return
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} else if checksumType.IsSet() && !checksumType.Is(hash.ChecksumTrailing) {
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opts.WantChecksum = &hash.Checksum{Type: checksumType}
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}
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newMultipartUpload := objectAPI.NewMultipartUpload
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if api.CacheAPI() != nil {
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newMultipartUpload = api.CacheAPI().NewMultipartUpload
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}
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res, err := newMultipartUpload(ctx, bucket, object, opts)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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response := generateInitiateMultipartUploadResponse(bucket, object, res.UploadID)
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if res.ChecksumAlgo != "" {
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w.Header().Set(xhttp.AmzChecksumAlgo, res.ChecksumAlgo)
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}
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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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// CopyObjectPartHandler - uploads a part by copying data from an existing object as data source.
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func (api objectAPIHandlers) CopyObjectPartHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "CopyObjectPart")
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defer logger.AuditLog(ctx, w, r, 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)
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return
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}
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if crypto.S3KMS.IsRequested(r.Header) { // SSE-KMS is not supported
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
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return
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}
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vars := mux.Vars(r)
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dstBucket := vars["bucket"]
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dstObject, err := unescapePath(vars["object"])
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, dstBucket, dstObject); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
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return
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}
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// Read escaped copy source path to check for parameters.
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cpSrcPath := r.Header.Get(xhttp.AmzCopySource)
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var vid string
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if u, err := url.Parse(cpSrcPath); err == nil {
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vid = strings.TrimSpace(u.Query().Get(xhttp.VersionID))
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// Note that url.Parse does the unescaping
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cpSrcPath = u.Path
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}
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srcBucket, srcObject := path2BucketObject(cpSrcPath)
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// If source object is empty or bucket is empty, reply back invalid copy source.
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if srcObject == "" || srcBucket == "" {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL)
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return
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}
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if vid != "" && vid != nullVersionID {
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_, err := uuid.Parse(vid)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, VersionNotFound{
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Bucket: srcBucket,
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Object: srcObject,
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VersionID: vid,
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}), r.URL)
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return
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}
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}
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if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, srcBucket, srcObject); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
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return
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}
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uploadID := r.Form.Get(xhttp.UploadID)
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partIDString := r.Form.Get(xhttp.PartNumber)
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partID, err := strconv.Atoi(partIDString)
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if err != nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPart), r.URL)
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return
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}
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// check partID with maximum part ID for multipart objects
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if isMaxPartID(partID) {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxParts), r.URL)
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return
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}
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var srcOpts, dstOpts ObjectOptions
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srcOpts, err = copySrcOpts(ctx, r, srcBucket, srcObject)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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srcOpts.VersionID = vid
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// convert copy src and dst encryption options for GET/PUT calls
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getOpts := ObjectOptions{VersionID: srcOpts.VersionID}
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if srcOpts.ServerSideEncryption != nil {
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getOpts.ServerSideEncryption = encrypt.SSE(srcOpts.ServerSideEncryption)
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}
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dstOpts, err = copyDstOpts(ctx, r, dstBucket, dstObject, nil)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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getObjectNInfo := objectAPI.GetObjectNInfo
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if api.CacheAPI() != nil {
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getObjectNInfo = api.CacheAPI().GetObjectNInfo
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}
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// Get request range.
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var rs *HTTPRangeSpec
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var parseRangeErr error
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if rangeHeader := r.Header.Get(xhttp.AmzCopySourceRange); rangeHeader != "" {
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rs, parseRangeErr = parseCopyPartRangeSpec(rangeHeader)
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} else {
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// This check is to see if client specified a header but the value
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// is empty for 'x-amz-copy-source-range'
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_, ok := r.Header[xhttp.AmzCopySourceRange]
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if ok {
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parseRangeErr = errInvalidRange
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}
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}
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checkCopyPartPrecondFn := func(o ObjectInfo) bool {
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if _, err := DecryptObjectInfo(&o, r); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return true
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}
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if checkCopyObjectPartPreconditions(ctx, w, r, o) {
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return true
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}
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if parseRangeErr != nil {
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logger.LogIf(ctx, parseRangeErr)
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writeCopyPartErr(ctx, w, parseRangeErr, r.URL)
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// Range header mismatch is pre-condition like failure
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// so return true to indicate Range precondition failed.
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return true
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}
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return false
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}
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getOpts.CheckPrecondFn = checkCopyPartPrecondFn
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gr, err := getObjectNInfo(ctx, srcBucket, srcObject, rs, r.Header, readLock, getOpts)
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if err != nil {
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if isErrPreconditionFailed(err) {
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return
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}
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if globalBucketVersioningSys.PrefixEnabled(srcBucket, srcObject) && gr != nil {
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// Versioning enabled quite possibly object is deleted might be delete-marker
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// if present set the headers, no idea why AWS S3 sets these headers.
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if gr.ObjInfo.VersionID != "" && gr.ObjInfo.DeleteMarker {
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w.Header()[xhttp.AmzVersionID] = []string{gr.ObjInfo.VersionID}
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w.Header()[xhttp.AmzDeleteMarker] = []string{strconv.FormatBool(gr.ObjInfo.DeleteMarker)}
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}
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}
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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defer gr.Close()
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srcInfo := gr.ObjInfo
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actualPartSize, err := srcInfo.GetActualSize()
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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if err := enforceBucketQuotaHard(ctx, dstBucket, actualPartSize); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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// Special care for CopyObjectPart
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if partRangeErr := checkCopyPartRangeWithSize(rs, actualPartSize); partRangeErr != nil {
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writeCopyPartErr(ctx, w, partRangeErr, r.URL)
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return
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}
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// Get the object offset & length
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startOffset, length, err := rs.GetOffsetLength(actualPartSize)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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// maximum copy size for multipart objects in a single operation
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if isMaxObjectSize(length) {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL)
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return
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}
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if isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) {
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var dstRecords []dns.SrvRecord
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dstRecords, err = globalDNSConfig.Get(dstBucket)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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// Send PutObject request to appropriate instance (in federated deployment)
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core, rerr := getRemoteInstanceClient(r, getHostFromSrv(dstRecords))
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if rerr != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, rerr), r.URL)
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return
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}
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partInfo, err := core.PutObjectPart(ctx, dstBucket, dstObject, uploadID, partID, gr, length, "", "", dstOpts.ServerSideEncryption)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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response := generateCopyObjectPartResponse(partInfo.ETag, partInfo.LastModified)
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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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return
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}
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actualPartSize = length
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var reader io.Reader = etag.NewReader(gr, nil)
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mi, err := objectAPI.GetMultipartInfo(ctx, dstBucket, dstObject, uploadID, dstOpts)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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// Read compression metadata preserved in the init multipart for the decision.
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_, isCompressed := mi.UserDefined[ReservedMetadataPrefix+"compression"]
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// Compress only if the compression is enabled during initial multipart.
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var idxCb func() []byte
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if isCompressed {
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wantEncryption := crypto.Requested(r.Header)
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s2c, cb := newS2CompressReader(reader, actualPartSize, wantEncryption)
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idxCb = cb
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defer s2c.Close()
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reader = etag.Wrap(s2c, reader)
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length = -1
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}
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srcInfo.Reader, err = hash.NewReader(reader, length, "", "", actualPartSize)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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dstOpts, err = copyDstOpts(ctx, r, dstBucket, dstObject, mi.UserDefined)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
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return
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}
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dstOpts.IndexCB = idxCb
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rawReader := srcInfo.Reader
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pReader := NewPutObjReader(rawReader)
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_, isEncrypted := crypto.IsEncrypted(mi.UserDefined)
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var objectEncryptionKey crypto.ObjectKey
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if isEncrypted {
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if !crypto.SSEC.IsRequested(r.Header) && crypto.SSEC.IsEncrypted(mi.UserDefined) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrSSEMultipartEncrypted), r.URL)
|
|
return
|
|
}
|
|
if crypto.S3.IsEncrypted(mi.UserDefined) && crypto.SSEC.IsRequested(r.Header) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrSSEMultipartEncrypted), r.URL)
|
|
return
|
|
}
|
|
var key []byte
|
|
if crypto.SSEC.IsRequested(r.Header) {
|
|
key, err = ParseSSECustomerRequest(r)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
key, err = decryptObjectMeta(key, dstBucket, dstObject, mi.UserDefined)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
copy(objectEncryptionKey[:], key)
|
|
|
|
partEncryptionKey := objectEncryptionKey.DerivePartKey(uint32(partID))
|
|
encReader, err := sio.EncryptReader(reader, sio.Config{Key: partEncryptionKey[:], CipherSuites: fips.DARECiphers()})
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
reader = etag.Wrap(encReader, reader)
|
|
|
|
wantSize := int64(-1)
|
|
if length >= 0 {
|
|
info := ObjectInfo{Size: length}
|
|
wantSize = info.EncryptedSize()
|
|
}
|
|
|
|
srcInfo.Reader, err = hash.NewReader(reader, wantSize, "", "", actualPartSize)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
pReader, err = pReader.WithEncryption(srcInfo.Reader, &objectEncryptionKey)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if dstOpts.IndexCB != nil {
|
|
dstOpts.IndexCB = compressionIndexEncrypter(objectEncryptionKey, dstOpts.IndexCB)
|
|
}
|
|
}
|
|
|
|
srcInfo.PutObjReader = pReader
|
|
copyObjectPart := objectAPI.CopyObjectPart
|
|
if api.CacheAPI() != nil {
|
|
copyObjectPart = api.CacheAPI().CopyObjectPart
|
|
}
|
|
// Copy source object to destination, if source and destination
|
|
// object is same then only metadata is updated.
|
|
partInfo, err := copyObjectPart(ctx, srcBucket, srcObject, dstBucket, dstObject, uploadID, partID,
|
|
startOffset, length, srcInfo, srcOpts, dstOpts)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
if isEncrypted {
|
|
partInfo.ETag = tryDecryptETag(objectEncryptionKey[:], partInfo.ETag, crypto.SSEC.IsRequested(r.Header))
|
|
}
|
|
|
|
response := generateCopyObjectPartResponse(partInfo.ETag, partInfo.LastModified)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|
|
|
|
// PutObjectPartHandler - uploads an incoming part for an ongoing multipart operation.
|
|
func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "PutObjectPart")
|
|
|
|
defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
|
|
return
|
|
}
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object, err := unescapePath(vars["object"])
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
// X-Amz-Copy-Source shouldn't be set for this call.
|
|
if _, ok := r.Header[xhttp.AmzCopySource]; ok {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL)
|
|
return
|
|
}
|
|
|
|
clientETag, err := etag.FromContentMD5(r.Header)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidDigest), r.URL)
|
|
return
|
|
}
|
|
|
|
// if Content-Length is unknown/missing, throw away
|
|
size := r.ContentLength
|
|
|
|
rAuthType := getRequestAuthType(r)
|
|
// For auth type streaming signature, we need to gather a different content length.
|
|
if rAuthType == authTypeStreamingSigned {
|
|
if sizeStr, ok := r.Header[xhttp.AmzDecodedContentLength]; ok {
|
|
if sizeStr[0] == "" {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
|
|
return
|
|
}
|
|
size, err = strconv.ParseInt(sizeStr[0], 10, 64)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
if size == -1 {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID := r.Form.Get(xhttp.UploadID)
|
|
partIDString := r.Form.Get(xhttp.PartNumber)
|
|
|
|
partID, err := strconv.Atoi(partIDString)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPart), r.URL)
|
|
return
|
|
}
|
|
|
|
// maximum size for multipart objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL)
|
|
return
|
|
}
|
|
|
|
// check partID with maximum part ID for multipart objects
|
|
if isMaxPartID(partID) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxParts), r.URL)
|
|
return
|
|
}
|
|
|
|
var (
|
|
md5hex = clientETag.String()
|
|
sha256hex = ""
|
|
reader io.Reader = r.Body
|
|
s3Error APIErrorCode
|
|
)
|
|
if s3Error = isPutActionAllowed(ctx, rAuthType, bucket, object, r, iampolicy.PutObjectAction); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
|
|
switch rAuthType {
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
reader, s3Error = newSignV4ChunkedReader(r)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
if s3Error = isReqAuthenticatedV2(r); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error = reqSignatureV4Verify(r, globalSite.Region, serviceS3); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
|
|
if !skipContentSha256Cksum(r) {
|
|
sha256hex = getContentSha256Cksum(r, serviceS3)
|
|
}
|
|
}
|
|
|
|
if err := enforceBucketQuotaHard(ctx, bucket, size); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
actualSize := size
|
|
|
|
// get encryption options
|
|
var opts ObjectOptions
|
|
if crypto.SSEC.IsRequested(r.Header) {
|
|
opts, err = getOpts(ctx, r, bucket, object)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
mi, err := objectAPI.GetMultipartInfo(ctx, bucket, object, uploadID, opts)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Read compression metadata preserved in the init multipart for the decision.
|
|
_, isCompressed := mi.UserDefined[ReservedMetadataPrefix+"compression"]
|
|
|
|
var idxCb func() []byte
|
|
if isCompressed {
|
|
actualReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if err = actualReader.AddChecksum(r, false); err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidChecksum), r.URL)
|
|
return
|
|
}
|
|
|
|
// Set compression metrics.
|
|
wantEncryption := crypto.Requested(r.Header)
|
|
s2c, cb := newS2CompressReader(actualReader, actualSize, wantEncryption)
|
|
idxCb = cb
|
|
defer s2c.Close()
|
|
reader = etag.Wrap(s2c, actualReader)
|
|
size = -1 // Since compressed size is un-predictable.
|
|
md5hex = "" // Do not try to verify the content.
|
|
sha256hex = ""
|
|
}
|
|
|
|
hashReader, err := hash.NewReader(reader, size, md5hex, sha256hex, actualSize)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if err := hashReader.AddChecksum(r, size < 0); err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidChecksum), r.URL)
|
|
return
|
|
}
|
|
|
|
pReader := NewPutObjReader(hashReader)
|
|
|
|
_, isEncrypted := crypto.IsEncrypted(mi.UserDefined)
|
|
var objectEncryptionKey crypto.ObjectKey
|
|
if isEncrypted {
|
|
if !crypto.SSEC.IsRequested(r.Header) && crypto.SSEC.IsEncrypted(mi.UserDefined) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrSSEMultipartEncrypted), r.URL)
|
|
return
|
|
}
|
|
|
|
opts, err = putOpts(ctx, r, bucket, object, mi.UserDefined)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
var key []byte
|
|
if crypto.SSEC.IsRequested(r.Header) {
|
|
key, err = ParseSSECustomerRequest(r)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Calculating object encryption key
|
|
key, err = decryptObjectMeta(key, bucket, object, mi.UserDefined)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
copy(objectEncryptionKey[:], key)
|
|
|
|
partEncryptionKey := objectEncryptionKey.DerivePartKey(uint32(partID))
|
|
in := io.Reader(hashReader)
|
|
if size > encryptBufferThreshold {
|
|
// The encryption reads in blocks of 64KB.
|
|
// We add a buffer on bigger files to reduce the number of syscalls upstream.
|
|
in = bufio.NewReaderSize(hashReader, encryptBufferSize)
|
|
}
|
|
reader, err = sio.EncryptReader(in, sio.Config{Key: partEncryptionKey[:], CipherSuites: fips.DARECiphers()})
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
wantSize := int64(-1)
|
|
if size >= 0 {
|
|
info := ObjectInfo{Size: size}
|
|
wantSize = info.EncryptedSize()
|
|
}
|
|
// do not try to verify encrypted content
|
|
hashReader, err = hash.NewReader(etag.Wrap(reader, hashReader), wantSize, "", "", actualSize)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if err := hashReader.AddChecksum(r, true); err != nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidChecksum), r.URL)
|
|
return
|
|
}
|
|
|
|
pReader, err = pReader.WithEncryption(hashReader, &objectEncryptionKey)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
if idxCb != nil {
|
|
idxCb = compressionIndexEncrypter(objectEncryptionKey, idxCb)
|
|
}
|
|
opts.EncryptFn = metadataEncrypter(objectEncryptionKey)
|
|
}
|
|
opts.IndexCB = idxCb
|
|
|
|
putObjectPart := objectAPI.PutObjectPart
|
|
if api.CacheAPI() != nil {
|
|
putObjectPart = api.CacheAPI().PutObjectPart
|
|
}
|
|
|
|
partInfo, err := putObjectPart(ctx, bucket, object, uploadID, partID, pReader, opts)
|
|
if err != nil {
|
|
// Verify if the underlying error is signature mismatch.
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
etag := partInfo.ETag
|
|
if kind, encrypted := crypto.IsEncrypted(mi.UserDefined); encrypted {
|
|
switch kind {
|
|
case crypto.S3KMS:
|
|
w.Header().Set(xhttp.AmzServerSideEncryption, xhttp.AmzEncryptionKMS)
|
|
w.Header().Set(xhttp.AmzServerSideEncryptionKmsID, mi.KMSKeyID())
|
|
if kmsCtx, ok := mi.UserDefined[crypto.MetaContext]; ok {
|
|
w.Header().Set(xhttp.AmzServerSideEncryptionKmsContext, kmsCtx)
|
|
}
|
|
if len(etag) >= 32 && strings.Count(etag, "-") != 1 {
|
|
etag = etag[len(etag)-32:]
|
|
}
|
|
case crypto.S3:
|
|
w.Header().Set(xhttp.AmzServerSideEncryption, xhttp.AmzEncryptionAES)
|
|
etag, _ = DecryptETag(objectEncryptionKey, ObjectInfo{ETag: etag})
|
|
case crypto.SSEC:
|
|
w.Header().Set(xhttp.AmzServerSideEncryptionCustomerAlgorithm, r.Header.Get(xhttp.AmzServerSideEncryptionCustomerAlgorithm))
|
|
w.Header().Set(xhttp.AmzServerSideEncryptionCustomerKeyMD5, r.Header.Get(xhttp.AmzServerSideEncryptionCustomerKeyMD5))
|
|
|
|
if len(etag) >= 32 && strings.Count(etag, "-") != 1 {
|
|
etag = etag[len(etag)-32:]
|
|
}
|
|
}
|
|
}
|
|
|
|
// We must not use the http.Header().Set method here because some (broken)
|
|
// clients expect the ETag header key to be literally "ETag" - not "Etag" (case-sensitive).
|
|
// Therefore, we have to set the ETag directly as map entry.
|
|
w.Header()[xhttp.ETag] = []string{"\"" + etag + "\""}
|
|
hash.TransferChecksumHeader(w, r)
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// CompleteMultipartUploadHandler - Complete multipart upload.
|
|
func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "CompleteMultipartUpload")
|
|
|
|
defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object, err := unescapePath(vars["object"])
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, bucket, object); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
|
|
// Content-Length is required and should be non-zero
|
|
if r.ContentLength <= 0 {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
|
|
return
|
|
}
|
|
|
|
// Get upload id.
|
|
uploadID, _, _, _, s3Error := getObjectResources(r.Form)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
|
|
complMultipartUpload := &CompleteMultipartUpload{}
|
|
if err = xmlDecoder(r.Body, complMultipartUpload, r.ContentLength); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if len(complMultipartUpload.Parts) == 0 {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMalformedXML), r.URL)
|
|
return
|
|
}
|
|
if !sort.IsSorted(CompletedParts(complMultipartUpload.Parts)) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPartOrder), r.URL)
|
|
return
|
|
}
|
|
|
|
// Reject retention or governance headers if set, CompleteMultipartUpload spec
|
|
// does not use these headers, and should not be passed down to checkPutObjectLockAllowed
|
|
if objectlock.IsObjectLockRequested(r.Header) || objectlock.IsObjectLockGovernanceBypassSet(r.Header) {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
|
|
return
|
|
}
|
|
|
|
if _, _, _, s3Err := checkPutObjectLockAllowed(ctx, r, bucket, object, objectAPI.GetObjectInfo, ErrNone, ErrNone); s3Err != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
|
|
return
|
|
}
|
|
|
|
completeMultiPartUpload := objectAPI.CompleteMultipartUpload
|
|
if api.CacheAPI() != nil {
|
|
completeMultiPartUpload = api.CacheAPI().CompleteMultipartUpload
|
|
}
|
|
// This code is specifically to handle the requirements for slow
|
|
// complete multipart upload operations on FS mode.
|
|
writeErrorResponseWithoutXMLHeader := func(ctx context.Context, w http.ResponseWriter, err APIError, reqURL *url.URL) {
|
|
switch err.Code {
|
|
case "SlowDown", "XMinioServerNotInitialized", "XMinioReadQuorum", "XMinioWriteQuorum":
|
|
// Set retxry-after header to indicate user-agents to retry request after 120secs.
|
|
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Retry-After
|
|
w.Header().Set(xhttp.RetryAfter, "120")
|
|
}
|
|
|
|
// Generate error response.
|
|
errorResponse := getAPIErrorResponse(ctx, err, reqURL.Path,
|
|
w.Header().Get(xhttp.AmzRequestID), globalDeploymentID)
|
|
encodedErrorResponse, _ := xml.Marshal(errorResponse)
|
|
setCommonHeaders(w)
|
|
w.Header().Set(xhttp.ContentType, string(mimeXML))
|
|
w.Write(encodedErrorResponse)
|
|
}
|
|
|
|
versioned := globalBucketVersioningSys.PrefixEnabled(bucket, object)
|
|
suspended := globalBucketVersioningSys.PrefixSuspended(bucket, object)
|
|
os := newObjSweeper(bucket, object).WithVersioning(versioned, suspended)
|
|
if !globalTierConfigMgr.Empty() {
|
|
// Get appropriate object info to identify the remote object to delete
|
|
goiOpts := os.GetOpts()
|
|
if goi, gerr := objectAPI.GetObjectInfo(ctx, bucket, object, goiOpts); gerr == nil {
|
|
os.SetTransitionState(goi.TransitionedObject)
|
|
}
|
|
}
|
|
|
|
setEventStreamHeaders(w)
|
|
|
|
opts, err := completeMultipartOpts(ctx, r, bucket, object)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
// First, we compute the ETag of the multipart object.
|
|
// The ETag of a multi-part object is always:
|
|
// ETag := MD5(ETag_p1, ETag_p2, ...)+"-N" (N being the number of parts)
|
|
//
|
|
// This is independent of encryption. An encrypted multipart
|
|
// object also has an ETag that is the MD5 of its part ETags.
|
|
// The fact the in case of encryption the ETag of a part is
|
|
// not the MD5 of the part content does not change that.
|
|
var completeETags []etag.ETag
|
|
for _, part := range complMultipartUpload.Parts {
|
|
ETag, err := etag.Parse(part.ETag)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
completeETags = append(completeETags, ETag)
|
|
}
|
|
multipartETag := etag.Multipart(completeETags...)
|
|
opts.UserDefined["etag"] = multipartETag.String()
|
|
|
|
w = &whiteSpaceWriter{ResponseWriter: w, Flusher: w.(http.Flusher)}
|
|
completeDoneCh := sendWhiteSpace(ctx, w)
|
|
objInfo, err := completeMultiPartUpload(ctx, bucket, object, uploadID, complMultipartUpload.Parts, opts)
|
|
// Stop writing white spaces to the client. Note that close(doneCh) style is not used as it
|
|
// can cause white space to be written after we send XML response in a race condition.
|
|
headerWritten := <-completeDoneCh
|
|
if err != nil {
|
|
if headerWritten {
|
|
writeErrorResponseWithoutXMLHeader(ctx, w, toAPIError(ctx, err), r.URL)
|
|
} else {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Get object location.
|
|
location := getObjectLocation(r, globalDomainNames, bucket, object)
|
|
// Generate complete multipart response.
|
|
response := generateCompleteMultpartUploadResponse(bucket, object, location, objInfo)
|
|
var encodedSuccessResponse []byte
|
|
if !headerWritten {
|
|
encodedSuccessResponse = encodeResponse(response)
|
|
} else {
|
|
encodedSuccessResponse, err = xml.Marshal(response)
|
|
if err != nil {
|
|
writeErrorResponseWithoutXMLHeader(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
opts.EncryptFn, err = objInfo.metadataEncryptFn(r.Header)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if r.Header.Get(xMinIOExtract) == "true" && HasSuffix(object, archiveExt) {
|
|
opts := ObjectOptions{VersionID: objInfo.VersionID, MTime: objInfo.ModTime}
|
|
if _, err := updateObjectMetadataWithZipInfo(ctx, objectAPI, bucket, object, opts); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
setPutObjHeaders(w, objInfo, false)
|
|
if dsc := mustReplicate(ctx, bucket, object, getMustReplicateOptions(objInfo, replication.ObjectReplicationType, opts)); dsc.ReplicateAny() {
|
|
scheduleReplication(ctx, objInfo.Clone(), objectAPI, dsc, replication.ObjectReplicationType)
|
|
}
|
|
if _, ok := r.Header[xhttp.MinIOSourceReplicationRequest]; ok {
|
|
actualSize, _ := objInfo.GetActualSize()
|
|
defer globalReplicationStats.UpdateReplicaStat(bucket, actualSize)
|
|
}
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
|
|
// Notify object created event.
|
|
sendEvent(eventArgs{
|
|
EventName: event.ObjectCreatedCompleteMultipartUpload,
|
|
BucketName: bucket,
|
|
Object: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
RespElements: extractRespElements(w),
|
|
UserAgent: r.UserAgent(),
|
|
Host: handlers.GetSourceIP(r),
|
|
})
|
|
|
|
// Remove the transitioned object whose object version is being overwritten.
|
|
if !globalTierConfigMgr.Empty() {
|
|
// Schedule object for immediate transition if eligible.
|
|
enqueueTransitionImmediate(objInfo)
|
|
logger.LogIf(ctx, os.Sweep())
|
|
}
|
|
}
|
|
|
|
// AbortMultipartUploadHandler - Abort multipart upload
|
|
func (api objectAPIHandlers) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "AbortMultipartUpload")
|
|
|
|
defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object, err := unescapePath(vars["object"])
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
|
|
return
|
|
}
|
|
abortMultipartUpload := objectAPI.AbortMultipartUpload
|
|
if api.CacheAPI() != nil {
|
|
abortMultipartUpload = api.CacheAPI().AbortMultipartUpload
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(ctx, r, policy.AbortMultipartUploadAction, bucket, object); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID, _, _, _, s3Error := getObjectResources(r.Form)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
opts := ObjectOptions{}
|
|
if err := abortMultipartUpload(ctx, bucket, object, uploadID, opts); err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// ListObjectPartsHandler - List object parts
|
|
func (api objectAPIHandlers) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "ListObjectParts")
|
|
|
|
defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))
|
|
|
|
vars := mux.Vars(r)
|
|
bucket := vars["bucket"]
|
|
object, err := unescapePath(vars["object"])
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(ctx, r, policy.ListMultipartUploadPartsAction, bucket, object); s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
|
|
uploadID, partNumberMarker, maxParts, encodingType, s3Error := getObjectResources(r.Form)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
|
|
return
|
|
}
|
|
if partNumberMarker < 0 {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPartNumberMarker), r.URL)
|
|
return
|
|
}
|
|
if maxParts < 0 {
|
|
writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidMaxParts), r.URL)
|
|
return
|
|
}
|
|
|
|
opts := ObjectOptions{}
|
|
listPartsInfo, err := objectAPI.ListObjectParts(ctx, bucket, object, uploadID, partNumberMarker, maxParts, opts)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
// We have to adjust the size of encrypted parts since encrypted parts
|
|
// are slightly larger due to encryption overhead.
|
|
// Further, we have to adjust the ETags of parts when using SSE-S3.
|
|
// Due to AWS S3, SSE-S3 encrypted parts return the plaintext ETag
|
|
// being the content MD5 of that particular part. This is not the
|
|
// case for SSE-C and SSE-KMS objects.
|
|
if kind, ok := crypto.IsEncrypted(listPartsInfo.UserDefined); ok {
|
|
var objectEncryptionKey []byte
|
|
if kind == crypto.S3 {
|
|
objectEncryptionKey, err = decryptObjectMeta(nil, bucket, object, listPartsInfo.UserDefined)
|
|
if err != nil {
|
|
writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
for i, p := range listPartsInfo.Parts {
|
|
listPartsInfo.Parts[i].ETag = tryDecryptETag(objectEncryptionKey, p.ETag, kind != crypto.S3)
|
|
listPartsInfo.Parts[i].Size = p.ActualSize
|
|
}
|
|
}
|
|
|
|
response := generateListPartsResponse(listPartsInfo, encodingType)
|
|
encodedSuccessResponse := encodeResponse(response)
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|
|
|
|
type whiteSpaceWriter struct {
|
|
http.ResponseWriter
|
|
http.Flusher
|
|
written bool
|
|
}
|
|
|
|
func (w *whiteSpaceWriter) Write(b []byte) (n int, err error) {
|
|
n, err = w.ResponseWriter.Write(b)
|
|
w.written = true
|
|
return
|
|
}
|
|
|
|
func (w *whiteSpaceWriter) WriteHeader(statusCode int) {
|
|
if !w.written {
|
|
w.ResponseWriter.WriteHeader(statusCode)
|
|
}
|
|
}
|
|
|
|
// Send empty whitespaces every 10 seconds to the client till completeMultiPartUpload() is
|
|
// done so that the client does not time out. Downside is we might send 200 OK and
|
|
// then send error XML. But accoording to S3 spec the client is supposed to check
|
|
// for error XML even if it received 200 OK. But for erasure this is not a problem
|
|
// as completeMultiPartUpload() is quick. Even For FS, it would not be an issue as
|
|
// we do background append as and when the parts arrive and completeMultiPartUpload
|
|
// is quick. Only in a rare case where parts would be out of order will
|
|
// FS:completeMultiPartUpload() take a longer time.
|
|
func sendWhiteSpace(ctx context.Context, w http.ResponseWriter) <-chan bool {
|
|
doneCh := make(chan bool)
|
|
go func() {
|
|
defer close(doneCh)
|
|
ticker := time.NewTicker(time.Second * 10)
|
|
defer ticker.Stop()
|
|
headerWritten := false
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
// Write header if not written yet.
|
|
if !headerWritten {
|
|
_, err := w.Write([]byte(xml.Header))
|
|
headerWritten = err == nil
|
|
}
|
|
|
|
// Once header is written keep writing empty spaces
|
|
// which are ignored by client SDK XML parsers.
|
|
// This occurs when server takes long time to completeMultiPartUpload()
|
|
_, err := w.Write([]byte(" "))
|
|
if err != nil {
|
|
return
|
|
}
|
|
w.(http.Flusher).Flush()
|
|
case doneCh <- headerWritten:
|
|
return
|
|
case <-ctx.Done():
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
return doneCh
|
|
}
|