def parse_blocks_v0(self, data, obj_id):
'''binray format'''
blocks = []
fmt = '!iq'
mode, size = struct.unpack_from(fmt, data, offset=0)
if mode != SEAF_METADATA_TYPE_FILE:
raise ObjectFormatError('corrupt file object ' + obj_id)
off = struct.calcsize(fmt)
while True:
fmt = "!20s"
bid, = struct.unpack_from(fmt, data, offset = off)
hexs = []
for d in bid:
x = binascii.b2a_hex(d)
hexs.append(x)
blk_id = ''.join(hexs)
blocks.append(blk_id)
off += struct.calcsize(fmt)
if off > len(data) - 20:
break
return blocks, size
def parse_dirents_v0(self, data, dir_id):
'''binary format'''
mode, = struct.unpack_from("!i", data, offset = 0)
if mode != SEAF_METADATA_TYPE_DIR:
raise ObjectFormatError('corrupt dir object ' + dir_id)
dirents = {}
off = 4
while True:
fmt = "!i40si"
mode, eid, name_len = struct.unpack_from(fmt, data, offset=off)
off += struct.calcsize(fmt)
fmt = "!%ds" % name_len
name, = struct.unpack_from(fmt, data, offset = off)
off += struct.calcsize(fmt)
if stat.S_ISREG(mode):
dirents[name] = SeafDirent.fromV0(name, SeafDirent.FILE, eid)
elif stat.S_ISDIR(mode):
dirents[name] = SeafDirent.fromV0(name, SeafDirent.DIR, eid)
else:
logger.warning('Error: unknown object mode %s', mode)
if off > len(data) - 48:
break
return dirents