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Fix PutObject/CopyObject with metadata for GCS gateway (#5828)

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Make sure to apply standard headers such as Content-Type,
Content-Disposition and Content-Language to the correct
GCS object attributes during object upload and copy operations.

Fixes: #5800
This commit is contained in:
wd256 2018-04-19 02:10:48 +10:00 committed by Nitish Tiwari
parent 0e9c73cbcf
commit 9f31da5d57
1 changed files with 47 additions and 9 deletions
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56
cmd/gateway/gcs/gateway-gcs.go
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@ -758,18 +758,57 @@ func (l *gcsGateway) GetObject(ctx context.Context, bucket string, key string, s
func fromGCSAttrsToObjectInfo(attrs *storage.ObjectAttrs) minio.ObjectInfo {
// All google cloud storage objects have a CRC32c hash, whereas composite objects may not have a MD5 hash
// Refer https://cloud.google.com/storage/docs/hashes-etags. Use CRC32C for ETag
metadata := make(map[string]string)
for k, v := range attrs.Metadata {
metadata[k] = v
}
if attrs.ContentType != "" {
metadata["content-type"] = attrs.ContentType
}
if attrs.ContentEncoding != "" {
metadata["content-encoding"] = attrs.ContentEncoding
}
if attrs.CacheControl != "" {
metadata["cache-control"] = attrs.CacheControl
}
if attrs.ContentDisposition != "" {
metadata["content-disposition"] = attrs.ContentDisposition
}
if attrs.ContentLanguage != "" {
metadata["content-language"] = attrs.ContentLanguage
}
return minio.ObjectInfo{
Name: attrs.Name,
Bucket: attrs.Bucket,
ModTime: attrs.Updated,
Size: attrs.Size,
ETag: minio.ToS3ETag(fmt.Sprintf("%d", attrs.CRC32C)),
UserDefined: attrs.Metadata,
UserDefined: metadata,
ContentType: attrs.ContentType,
ContentEncoding: attrs.ContentEncoding,
}
}
// applyMetadataToGCSAttrs applies metadata to a GCS ObjectAttrs instance
func applyMetadataToGCSAttrs(metadata map[string]string, attrs *storage.ObjectAttrs) {
attrs.ContentType = metadata["content-type"]
attrs.ContentEncoding = metadata["content-encoding"]
attrs.CacheControl = metadata["cache-control"]
attrs.ContentDisposition = metadata["content-disposition"]
attrs.ContentLanguage = metadata["content-language"]
attrs.Metadata = make(map[string]string)
for k, v := range metadata {
attrs.Metadata[k] = v
}
// Filter metadata which is stored as a unique attribute
for _, key := range []string{
"content-type", "content-encoding", "cache-control", "content-disposition", "content-language",
} {
delete(attrs.Metadata, key)
}
}
// GetObjectInfo - reads object info and replies back ObjectInfo
func (l *gcsGateway) GetObjectInfo(ctx context.Context, bucket string, object string) (minio.ObjectInfo, error) {
// if we want to mimic S3 behavior exactly, we need to verify if bucket exists first,
@ -800,10 +839,7 @@ func (l *gcsGateway) PutObject(ctx context.Context, bucket string, key string, d
object := l.client.Bucket(bucket).Object(key)
w := object.NewWriter(l.ctx)
w.ContentType = metadata["content-type"]
w.ContentEncoding = metadata["content-encoding"]
w.Metadata = metadata
applyMetadataToGCSAttrs(metadata, &w.ObjectAttrs)
if _, err := io.Copy(w, data); err != nil {
// Close the object writer upon error.
@ -832,7 +868,7 @@ func (l *gcsGateway) CopyObject(ctx context.Context, srcBucket string, srcObject
dst := l.client.Bucket(destBucket).Object(destObject)
copier := dst.CopierFrom(src)
copier.ObjectAttrs.Metadata = srcInfo.UserDefined
applyMetadataToGCSAttrs(srcInfo.UserDefined, &copier.ObjectAttrs)
attrs, err := copier.Run(l.ctx)
if err != nil {
@ -865,9 +901,7 @@ func (l *gcsGateway) NewMultipartUpload(ctx context.Context, bucket string, key
w := l.client.Bucket(bucket).Object(meta).NewWriter(l.ctx)
defer w.Close()
w.ContentType = metadata["content-type"]
w.ContentEncoding = metadata["content-encoding"]
w.Metadata = metadata
applyMetadataToGCSAttrs(metadata, &w.ObjectAttrs)
if err = json.NewEncoder(w).Encode(gcsMultipartMetaV1{
gcsMinioMultipartMetaCurrentVersion,
@ -1076,6 +1110,10 @@ func (l *gcsGateway) CompleteMultipartUpload(ctx context.Context, bucket string,
composer := l.client.Bucket(bucket).Object(key).ComposerFrom(parts...)
composer.ContentType = partZeroAttrs.ContentType
composer.ContentEncoding = partZeroAttrs.ContentEncoding
composer.CacheControl = partZeroAttrs.CacheControl
composer.ContentDisposition = partZeroAttrs.ContentDisposition
composer.ContentLanguage = partZeroAttrs.ContentLanguage
composer.Metadata = partZeroAttrs.Metadata
attrs, err := composer.Run(l.ctx)
if err != nil {