// List lists a bucket, all objects Key starts with prefix, delimiter segments
// Key, thus the returned commonprefixes (think a generalized filepath
// structure, where / is the delimiter, a commonprefix is a subdir)
func (root hier) List(owner s3intf.Owner, bucket, prefix, delimiter, marker string,
limit, skip int) (
objects []s3intf.Object, commonprefixes []string,
truncated bool, err error) {
dh, e := os.Open(filepath.Join(string(root), owner.ID(), bucket))
if e != nil {
err = e
return
}
defer dh.Close()
var (
infos []os.FileInfo
key, etag string
md5hash []byte
ok bool
)
objects = make([]s3intf.Object, 0, 64)
f := s3intf.NewListFilter(prefix, delimiter, marker, limit, skip)
OUTER:
for {
infos, e = dh.Readdir(limit)
if e != nil {
if e == io.EOF {
break
}
err = e
return
}
for _, fi := range infos {
if key, _, _, md5hash, err = decodeFilename(fi.Name()); err != nil {
return
}
if ok, e = f.Check(key); e != nil {
if e == io.EOF {
break OUTER
}
err = fmt.Errorf("error checking %s: %s", key, e)
return
} else if ok {
if md5hash != nil && len(md5hash) == 16 {
etag = hex.EncodeToString(md5hash)
} else {
etag = ""
}
objects = append(objects,
s3intf.Object{Key: string(key), Owner: owner,
ETag: etag, LastModified: fi.ModTime(), Size: fi.Size()})
}
}
}
commonprefixes, truncated = f.Result()
return
}
// List lists a bucket, all objects Key starts with prefix, delimiter segments
// Key, thus the returned commonprefixes (think a generalized filepath
// structure, where / is the delimiter, a commonprefix is a subdir)
func (m master) List(owner s3intf.Owner, bucket, prefix, delimiter, marker string,
limit, skip int) (
objects []s3intf.Object, commonprefixes []string,
truncated bool, err error) {
m.Lock()
o, ok := m.owners[owner.ID()]
if !ok {
m.Unlock()
err = fmt.Errorf("unknown owner %s", owner.ID())
return
}
o.Lock()
b, ok := o.buckets[bucket]
o.Unlock()
m.Unlock()
if !ok {
err = fmt.Errorf("unknown bucket %s", bucket)
return
}
err = nil
enum, e := b.db.SeekFirst()
if e != nil {
if e == io.EOF { //empty
return
}
err = fmt.Errorf("error getting first: %s", e)
return
}
var (
key, val []byte
vi = new(weedutils.ValInfo)
etag string
)
objects = make([]s3intf.Object, 0, 64)
f := s3intf.NewListFilter(prefix, delimiter, marker, limit, skip)
for {
if key, val, e = enum.Next(); e != nil {
if e == io.EOF {
break
}
err = fmt.Errorf("error seeking next: %s", e)
return
}
//log.Printf("key=%q", key)
if ok, e = f.Check(string(key)); e != nil {
if e == io.EOF {
break
}
err = fmt.Errorf("error checking %s: %s", key, e)
return
} else if ok {
if err = vi.Decode(val); err != nil {
return
}
if vi.MD5 != nil && len(vi.MD5) == 16 {
etag = hex.EncodeToString(vi.MD5)
} else {
etag = ""
}
objects = append(objects,
s3intf.Object{Key: string(key), Owner: owner,
ETag: etag, LastModified: vi.Created, Size: vi.Size})
}
}
commonprefixes, truncated = f.Result()
return
}