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			1142 lines
		
	
	
		
			37 KiB
		
	
	
	
		
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			1142 lines
		
	
	
		
			37 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright (c) 2015-2023 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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	"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"
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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/v2/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.SSECopy.IsRequested(r.Header) {
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			writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL)
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			return
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		}
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		if crypto.SSEC.IsRequested(r.Header) && crypto.S3.IsRequested(r.Header) {
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			writeErrorResponse(ctx, w, toAPIError(ctx, crypto.ErrIncompatibleEncryptionMethod), r.URL)
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			return
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		}
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		if crypto.SSEC.IsRequested(r.Header) && crypto.S3KMS.IsRequested(r.Header) {
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			writeErrorResponse(ctx, w, toAPIError(ctx, crypto.ErrIncompatibleEncryptionMethod), r.URL)
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			return
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		}
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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, policy.PutObjectRetentionAction)
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	holdPerms := isPutActionAllowed(ctx, getRequestAuthType(r), bucket, object, r, policy.PutObjectLegalHoldAction)
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	getObjectInfo := objectAPI.GetObjectInfo
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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(metadata, "", "", 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.PreserveETag != "" ||
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		r.Header.Get(xhttp.IfMatch) != "" ||
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		r.Header.Get(xhttp.IfNoneMatch) != "" {
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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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	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 {
 | 
						|
		_, err := uuid.Parse(vid)
 | 
						|
		if err != nil {
 | 
						|
			writeErrorResponse(ctx, w, toAPIError(ctx, VersionNotFound{
 | 
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				Bucket:    srcBucket,
 | 
						|
				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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						|
	}
 | 
						|
 | 
						|
	if s3Error := checkRequestAuthType(ctx, r, policy.GetObjectAction, srcBucket, srcObject); s3Error != ErrNone {
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						|
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
 | 
						|
		return
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						|
	}
 | 
						|
 | 
						|
	uploadID := r.Form.Get(xhttp.UploadID)
 | 
						|
	partIDString := r.Form.Get(xhttp.PartNumber)
 | 
						|
 | 
						|
	partID, err := strconv.Atoi(partIDString)
 | 
						|
	if err != nil || partID <= 0 {
 | 
						|
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPart), 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 srcOpts, dstOpts ObjectOptions
 | 
						|
	srcOpts, err = copySrcOpts(ctx, r, srcBucket, srcObject)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
	srcOpts.VersionID = vid
 | 
						|
 | 
						|
	// convert copy src and dst encryption options for GET/PUT calls
 | 
						|
	getOpts := ObjectOptions{VersionID: srcOpts.VersionID}
 | 
						|
	if srcOpts.ServerSideEncryption != nil {
 | 
						|
		getOpts.ServerSideEncryption = encrypt.SSE(srcOpts.ServerSideEncryption)
 | 
						|
	}
 | 
						|
 | 
						|
	dstOpts, err = copyDstOpts(ctx, r, dstBucket, dstObject, nil)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	getObjectNInfo := objectAPI.GetObjectNInfo
 | 
						|
 | 
						|
	// Get request range.
 | 
						|
	var rs *HTTPRangeSpec
 | 
						|
	var parseRangeErr error
 | 
						|
	if rangeHeader := r.Header.Get(xhttp.AmzCopySourceRange); rangeHeader != "" {
 | 
						|
		rs, parseRangeErr = parseCopyPartRangeSpec(rangeHeader)
 | 
						|
	} else {
 | 
						|
		// This check is to see if client specified a header but the value
 | 
						|
		// is empty for 'x-amz-copy-source-range'
 | 
						|
		_, ok := r.Header[xhttp.AmzCopySourceRange]
 | 
						|
		if ok {
 | 
						|
			parseRangeErr = errInvalidRange
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	checkCopyPartPrecondFn := func(o ObjectInfo) bool {
 | 
						|
		if _, err := DecryptObjectInfo(&o, r); err != nil {
 | 
						|
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
			return true
 | 
						|
		}
 | 
						|
		if checkCopyObjectPartPreconditions(ctx, w, r, o) {
 | 
						|
			return true
 | 
						|
		}
 | 
						|
		if parseRangeErr != nil {
 | 
						|
			writeCopyPartErr(ctx, w, parseRangeErr, r.URL)
 | 
						|
			// Range header mismatch is pre-condition like failure
 | 
						|
			// so return true to indicate Range precondition failed.
 | 
						|
			return true
 | 
						|
		}
 | 
						|
		return false
 | 
						|
	}
 | 
						|
	getOpts.CheckPrecondFn = checkCopyPartPrecondFn
 | 
						|
	gr, err := getObjectNInfo(ctx, srcBucket, srcObject, rs, r.Header, getOpts)
 | 
						|
	if err != nil {
 | 
						|
		if isErrPreconditionFailed(err) {
 | 
						|
			return
 | 
						|
		}
 | 
						|
		if globalBucketVersioningSys.PrefixEnabled(srcBucket, srcObject) && gr != nil {
 | 
						|
			// Versioning enabled quite possibly object is deleted might be delete-marker
 | 
						|
			// if present set the headers, no idea why AWS S3 sets these headers.
 | 
						|
			if gr.ObjInfo.VersionID != "" && gr.ObjInfo.DeleteMarker {
 | 
						|
				w.Header()[xhttp.AmzVersionID] = []string{gr.ObjInfo.VersionID}
 | 
						|
				w.Header()[xhttp.AmzDeleteMarker] = []string{strconv.FormatBool(gr.ObjInfo.DeleteMarker)}
 | 
						|
			}
 | 
						|
		}
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
	defer gr.Close()
 | 
						|
	srcInfo := gr.ObjInfo
 | 
						|
 | 
						|
	actualPartSize, err := srcInfo.GetActualSize()
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	if err := enforceBucketQuotaHard(ctx, dstBucket, actualPartSize); err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	// Special care for CopyObjectPart
 | 
						|
	if partRangeErr := checkCopyPartRangeWithSize(rs, actualPartSize); partRangeErr != nil {
 | 
						|
		writeCopyPartErr(ctx, w, partRangeErr, r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	// Get the object offset & length
 | 
						|
	startOffset, length, err := rs.GetOffsetLength(actualPartSize)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	// maximum copy size for multipart objects in a single operation
 | 
						|
	if isMaxObjectSize(length) {
 | 
						|
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	if isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) {
 | 
						|
		var dstRecords []dns.SrvRecord
 | 
						|
		dstRecords, err = globalDNSConfig.Get(dstBucket)
 | 
						|
		if err != nil {
 | 
						|
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
			return
 | 
						|
		}
 | 
						|
 | 
						|
		// Send PutObject request to appropriate instance (in federated deployment)
 | 
						|
		core, rerr := getRemoteInstanceClient(r, getHostFromSrv(dstRecords))
 | 
						|
		if rerr != nil {
 | 
						|
			writeErrorResponse(ctx, w, toAPIError(ctx, rerr), r.URL)
 | 
						|
			return
 | 
						|
		}
 | 
						|
 | 
						|
		popts := minio.PutObjectPartOptions{
 | 
						|
			SSE: dstOpts.ServerSideEncryption,
 | 
						|
		}
 | 
						|
 | 
						|
		partInfo, err := core.PutObjectPart(ctx, dstBucket, dstObject, uploadID, partID, gr, length, popts)
 | 
						|
		if err != nil {
 | 
						|
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
			return
 | 
						|
		}
 | 
						|
 | 
						|
		response := generateCopyObjectPartResponse(partInfo.ETag, partInfo.LastModified)
 | 
						|
		encodedSuccessResponse := encodeResponse(response)
 | 
						|
 | 
						|
		// Write success response.
 | 
						|
		writeSuccessResponseXML(w, encodedSuccessResponse)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	actualPartSize = length
 | 
						|
	var reader io.Reader = etag.NewReader(ctx, gr, nil, nil)
 | 
						|
 | 
						|
	mi, err := objectAPI.GetMultipartInfo(ctx, dstBucket, dstObject, uploadID, dstOpts)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	_, isEncrypted := crypto.IsEncrypted(mi.UserDefined)
 | 
						|
 | 
						|
	// Read compression metadata preserved in the init multipart for the decision.
 | 
						|
	_, isCompressed := mi.UserDefined[ReservedMetadataPrefix+"compression"]
 | 
						|
	// Compress only if the compression is enabled during initial multipart.
 | 
						|
	var idxCb func() []byte
 | 
						|
	if isCompressed {
 | 
						|
		wantEncryption := crypto.Requested(r.Header) || isEncrypted
 | 
						|
		s2c, cb := newS2CompressReader(reader, actualPartSize, wantEncryption)
 | 
						|
		idxCb = cb
 | 
						|
		defer s2c.Close()
 | 
						|
		reader = etag.Wrap(s2c, reader)
 | 
						|
		length = -1
 | 
						|
	}
 | 
						|
 | 
						|
	srcInfo.Reader, err = hash.NewReader(ctx, reader, length, "", "", actualPartSize)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	dstOpts, err = copyDstOpts(ctx, r, dstBucket, dstObject, mi.UserDefined)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
	dstOpts.IndexCB = idxCb
 | 
						|
 | 
						|
	rawReader := srcInfo.Reader
 | 
						|
	pReader := NewPutObjReader(rawReader)
 | 
						|
 | 
						|
	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
 | 
						|
		}
 | 
						|
		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(ctx, 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
 | 
						|
 | 
						|
	// 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 {
 | 
						|
		sseS3 := crypto.S3.IsRequested(r.Header) || crypto.S3.IsEncrypted(mi.UserDefined)
 | 
						|
		partInfo.ETag = tryDecryptETag(objectEncryptionKey[:], partInfo.ETag, sseS3)
 | 
						|
	}
 | 
						|
 | 
						|
	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.
 | 
						|
	switch rAuthType {
 | 
						|
	// Check signature types that must have content length
 | 
						|
	case authTypeStreamingSigned, authTypeStreamingSignedTrailer, authTypeStreamingUnsignedTrailer:
 | 
						|
		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 || partID <= 0 {
 | 
						|
		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, policy.PutObjectAction); s3Error != ErrNone {
 | 
						|
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	switch rAuthType {
 | 
						|
	case authTypeStreamingSigned, authTypeStreamingSignedTrailer:
 | 
						|
		// Initialize stream signature verifier.
 | 
						|
		reader, s3Error = newSignV4ChunkedReader(r, rAuthType == authTypeStreamingSignedTrailer)
 | 
						|
		if s3Error != ErrNone {
 | 
						|
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
 | 
						|
			return
 | 
						|
		}
 | 
						|
	case authTypeStreamingUnsignedTrailer:
 | 
						|
		// Initialize stream signature verifier.
 | 
						|
		reader, s3Error = newUnsignedV4ChunkedReader(r, true)
 | 
						|
		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(ctx, 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(ctx, 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(ctx, 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
 | 
						|
 | 
						|
	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
 | 
						|
	}
 | 
						|
 | 
						|
	// Get upload id.
 | 
						|
	uploadID, _, _, _, s3Error := getObjectResources(r.Form)
 | 
						|
	if 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(ErrMissingPart), 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(ErrMissingPart), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
 | 
						|
	if !sort.SliceIsSorted(complMultipartUpload.Parts, func(i, j int) bool {
 | 
						|
		return complMultipartUpload.Parts[i].PartNumber < complMultipartUpload.Parts[j].PartNumber
 | 
						|
	}) {
 | 
						|
		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
 | 
						|
 | 
						|
	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)
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	opts, err := completeMultipartOpts(ctx, r, bucket, object)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
 | 
						|
		return
 | 
						|
	}
 | 
						|
	opts.Versioned = versioned
 | 
						|
	opts.VersionSuspended = suspended
 | 
						|
 | 
						|
	// 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()
 | 
						|
 | 
						|
	objInfo, err := completeMultiPartUpload(ctx, bucket, object, uploadID, complMultipartUpload.Parts, opts)
 | 
						|
	if err != nil {
 | 
						|
		writeErrorResponse(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, objInfo.getMustReplicateOptions(replication.ObjectReplicationType, opts)); dsc.ReplicateAny() {
 | 
						|
		scheduleReplication(ctx, objInfo, objectAPI, dsc, replication.ObjectReplicationType)
 | 
						|
	}
 | 
						|
	if _, ok := r.Header[xhttp.MinIOSourceReplicationRequest]; ok {
 | 
						|
		actualSize, _ := objInfo.GetActualSize()
 | 
						|
		defer globalReplicationStats.UpdateReplicaStat(bucket, actualSize)
 | 
						|
	}
 | 
						|
 | 
						|
	// Get object location.
 | 
						|
	location := getObjectLocation(r, globalDomainNames, bucket, object)
 | 
						|
	// Generate complete multipart response.
 | 
						|
	response := generateCompleteMultpartUploadResponse(bucket, object, location, objInfo)
 | 
						|
	encodedSuccessResponse := encodeResponse(response)
 | 
						|
 | 
						|
	// Write success response.
 | 
						|
	writeSuccessResponseXML(w, encodedSuccessResponse)
 | 
						|
 | 
						|
	// Notify object created event.
 | 
						|
	evt := eventArgs{
 | 
						|
		EventName:    event.ObjectCreatedCompleteMultipartUpload,
 | 
						|
		BucketName:   bucket,
 | 
						|
		Object:       objInfo,
 | 
						|
		ReqParams:    extractReqParams(r),
 | 
						|
		RespElements: extractRespElements(w),
 | 
						|
		UserAgent:    r.UserAgent(),
 | 
						|
		Host:         handlers.GetSourceIP(r),
 | 
						|
	}
 | 
						|
	sendEvent(evt)
 | 
						|
 | 
						|
	if objInfo.NumVersions > dataScannerExcessiveVersionsThreshold {
 | 
						|
		evt.EventName = event.ObjectManyVersions
 | 
						|
		sendEvent(evt)
 | 
						|
	}
 | 
						|
 | 
						|
	// Remove the transitioned object whose object version is being overwritten.
 | 
						|
	if !globalTierConfigMgr.Empty() {
 | 
						|
		// Schedule object for immediate transition if eligible.
 | 
						|
		enqueueTransitionImmediate(objInfo, lcEventSrc_s3CompleteMultipartUpload)
 | 
						|
		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 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 {
 | 
						|
		switch err.(type) {
 | 
						|
		case InvalidUploadID:
 | 
						|
			// Do not have return an error for non-existent upload-id
 | 
						|
		default:
 | 
						|
			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)
 | 
						|
}
 |