connectors/ConnectorBase.py
author usveticic
Wed, 05 Aug 2020 15:14:39 +0200
branchsvghmi
changeset 3011 601c6dbc1da7
parent 2621 af09744a468e
child 3750 f62625418bff
child 3861 7e17f7e02a2b
permissions -rw-r--r--
Reworked togglebutton widget to extand class widget
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# See COPYING file for copyrights details.
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from __future__ import absolute_import
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import hashlib
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class ConnectorBase(object):
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    chuncksize = 1024*1024
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    def BlobFromFile(self, filepath, seed):
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        s = hashlib.new('md5')
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        s.update(seed)
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        blobID = self.SeedBlob(seed)
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        with open(filepath, "rb") as f:
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            while blobID == s.digest():
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                chunk = f.read(self.chuncksize)
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                if len(chunk) == 0:
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                    return blobID
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                blobID = self.AppendChunkToBlob(chunk, blobID)
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                s.update(chunk)
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        raise IOError("Data corrupted during transfer or connection lost")