ftp: fix RangeOption support in Open #1825

This commit is contained in:
Fabian Möller 2018-01-23 21:09:11 +01:00 committed by Nick Craig-Wood
parent 9520992a54
commit 17dabf7a99

View File

@ -16,6 +16,7 @@ import (
"github.com/ncw/rclone/fs/config"
"github.com/ncw/rclone/fs/config/obscure"
"github.com/ncw/rclone/fs/hash"
"github.com/ncw/rclone/lib/readers"
"github.com/pkg/errors"
)
@ -633,11 +634,13 @@ func (f *ftpReadCloser) Close() error {
func (o *Object) Open(options ...fs.OpenOption) (rc io.ReadCloser, err error) {
// defer fs.Trace(o, "")("rc=%v, err=%v", &rc, &err)
path := path.Join(o.fs.root, o.remote)
var offset int64
var offset, limit int64
for _, option := range options {
switch x := option.(type) {
case *fs.SeekOption:
offset = x.Offset
offset, limit = x.Offset, 0
case *fs.RangeOption:
offset, limit = x.Decode(o.Size())
default:
if option.Mandatory() {
fs.Logf(o, "Unsupported mandatory option: %v", option)
@ -653,7 +656,7 @@ func (o *Object) Open(options ...fs.OpenOption) (rc io.ReadCloser, err error) {
o.fs.putFtpConnection(&c, err)
return nil, errors.Wrap(err, "open")
}
rc = &ftpReadCloser{rc: fd, c: c, f: o.fs}
rc = &ftpReadCloser{rc: readers.NewLimitedReadCloser(fd, limit), c: c, f: o.fs}
return rc, nil
}