#!/usr/bin/env python

# -*- coding: utf-8 -*-

# See COPYING file for copyrights details.

import hashlib

class ConnectorBase(object):

chuncksize = 1024*1024

def BlobFromFile(self, filepath, seed):

s = hashlib.new('md5')

s.update(seed.encode())

blobID = self.SeedBlob(seed)

with open(filepath, "rb") as f:

while blobID == s.digest():

chunk = f.read(self.chuncksize)

if len(chunk) == 0:

return blobID

blobID = self.AppendChunkToBlob(chunk, blobID)

s.update(chunk)

raise IOError("Data corrupted during transfer or connection lost")