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fs: Make sure to validate bucket first in PutObject() (#4427)

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Currently even when bucket doesn't exist we wrongly
return success, when an object is a directory prefix with
 '/' as suffix and is of size 0.

This PR fixes this behavior.
This commit is contained in:
Harshavardhana
2017-05-25 09:22:43 -07:00
committed by GitHub
parent b78f6fbcc5
commit 072fcf3ba6
2 changed files with 32 additions and 9 deletions
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cmd/fs-v1.go
+9 -7
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@@ -605,9 +605,15 @@ func (fs fsObjects) parentDirIsObject(bucket, parent string) bool {
// for future object operations.
func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string, sha256sum string) (objInfo ObjectInfo, retErr error) {
var err error
// This is a special case with size as '0' and object ends with
// a slash separator, we treat it like a valid operation and
// return success.
// Validate if bucket name is valid and exists.
if _, err = fs.statBucketDir(bucket); err != nil {
return ObjectInfo{}, toObjectErr(err, bucket)
}
// This is a special case with size as '0' and object ends
// with a slash separator, we treat it like a valid operation
// and return success.
if isObjectDir(object, size) {
// Check if an object is present as one of the parent dir.
if fs.parentDirIsObject(bucket, path.Dir(object)) {
@@ -625,10 +631,6 @@ func (fs fsObjects) PutObject(bucket string, object string, size int64, data io.
return ObjectInfo{}, toObjectErr(traceError(errFileAccessDenied), bucket, object)
}
if _, err = fs.statBucketDir(bucket); err != nil {
return ObjectInfo{}, toObjectErr(err, bucket)
}
// No metadata is set, allocate a new one.
if metadata == nil {
metadata = make(map[string]string)