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CopyObject: Do not remove crypto info when compressed (#11702)

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Removing crypto info makes it impossible to copy encrypted+compressed objects.

Disable destination compression when encrypted.
This commit is contained in:
Klaus Post 2021-03-08 12:57:54 -08:00 committed by GitHub
parent 3d8c512bba
commit 4ac9ed4248
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 7 deletions
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16
cmd/object-handlers.go
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@ -1051,26 +1051,29 @@ func (api objectAPIHandlers) CopyObjectHandler(w http.ResponseWriter, r *http.Re
}
}
// Check if either the source is encrypted or the destination will be encrypted.
_, objectEncryption := crypto.IsRequested(r.Header)
objectEncryption = objectEncryption || crypto.IsSourceEncrypted(srcInfo.UserDefined)
var compressMetadata map[string]string
// No need to compress for remote etcd calls
// Pass the decompressed stream to such calls.
isDstCompressed := objectAPI.IsCompressionSupported() &&
isCompressible(r.Header, dstObject) &&
!isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) && !cpSrcDstSame
!isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) && !cpSrcDstSame && !objectEncryption
if isDstCompressed {
compressMetadata = make(map[string]string, 2)
// Preserving the compression metadata.
compressMetadata[ReservedMetadataPrefix+"compression"] = compressionAlgorithmV2
compressMetadata[ReservedMetadataPrefix+"actual-size"] = strconv.FormatInt(actualSize, 10)
// Remove all source encrypted related metadata to
// avoid copying them in target object.
crypto.RemoveInternalEntries(srcInfo.UserDefined)
s2c := newS2CompressReader(reader, actualSize)
defer s2c.Close()
reader = etag.Wrap(s2c, reader)
length = -1
} else {
delete(srcInfo.UserDefined, ReservedMetadataPrefix+"compression")
delete(srcInfo.UserDefined, ReservedMetadataPrefix+"actual-size")
reader = gr
}
@ -1082,9 +1085,7 @@ func (api objectAPIHandlers) CopyObjectHandler(w http.ResponseWriter, r *http.Re
pReader := NewPutObjReader(srcInfo.Reader)
// Check if either the source is encrypted or the destination will be encrypted.
_, objectEncryption := crypto.IsRequested(r.Header)
objectEncryption = objectEncryption || crypto.IsSourceEncrypted(srcInfo.UserDefined)
// Handle encryption
var encMetadata = make(map[string]string)
if objectAPI.IsEncryptionSupported() {
// Encryption parameters not applicable for this object.
@ -1269,6 +1270,7 @@ func (api objectAPIHandlers) CopyObjectHandler(w http.ResponseWriter, r *http.Re
// Ensure that metadata does not contain sensitive information
crypto.RemoveSensitiveEntries(srcInfo.UserDefined)
// Check if x-amz-metadata-directive or x-amz-tagging-directive was not set to REPLACE and source,
// destination are same objects. Apply this restriction also when
// metadataOnly is true indicating that we are not overwriting the object.