forked from LBRYCommunity/lbry-sdk
10b34d6b33
instead of recursive bytes2unicode use a proper JSONEncoder to conver bytes->unicode for json.dumps() removing excessive isinstance(data, bytes) checks py3: / -> // and list() around .items() that gets modified in loop moved lbrynet.undecorated to where its actually used and hopefully we can delete it eventually removed build/upload_assets.py, travis can do all this now
51 lines
1.7 KiB
Python
51 lines
1.7 KiB
Python
import os
|
|
import logging
|
|
from io import BytesIO
|
|
from twisted.internet import defer
|
|
from twisted.web.client import FileBodyProducer
|
|
from lbrynet.core.cryptoutils import get_lbry_hash_obj
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class BlobFileCreator:
|
|
"""
|
|
This class is used to create blobs on the local filesystem
|
|
when we do not know the blob hash beforehand (i.e, when creating
|
|
a new stream)
|
|
"""
|
|
def __init__(self, blob_dir):
|
|
self.blob_dir = blob_dir
|
|
self.buffer = BytesIO()
|
|
self._is_open = True
|
|
self._hashsum = get_lbry_hash_obj()
|
|
self.len_so_far = 0
|
|
self.blob_hash = None
|
|
self.length = None
|
|
|
|
@defer.inlineCallbacks
|
|
def close(self):
|
|
self.length = self.len_so_far
|
|
self.blob_hash = self._hashsum.hexdigest()
|
|
if self.blob_hash and self._is_open and self.length > 0:
|
|
# do not save 0 length files (empty tail blob in streams)
|
|
# or if its been closed already
|
|
self.buffer.seek(0)
|
|
out_path = os.path.join(self.blob_dir, self.blob_hash)
|
|
producer = FileBodyProducer(self.buffer)
|
|
yield producer.startProducing(open(out_path, 'wb'))
|
|
self._is_open = False
|
|
if self.length > 0:
|
|
defer.returnValue(self.blob_hash)
|
|
else:
|
|
# 0 length files (empty tail blob in streams )
|
|
# must return None as their blob_hash for
|
|
# it to be saved properly by EncryptedFileMetadataManagers
|
|
defer.returnValue(None)
|
|
|
|
def write(self, data):
|
|
if not self._is_open:
|
|
raise IOError
|
|
self._hashsum.update(data)
|
|
self.len_so_far += len(data)
|
|
self.buffer.write(data)
|