24 lines
759 B
Python
24 lines
759 B
Python
import binascii
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from zope.interface import implements
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from twisted.internet import defer
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from lbrynet.cryptstream.CryptBlob import StreamBlobDecryptor
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from lbrynet.interfaces import IBlobHandler
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class CryptBlobHandler(object):
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implements(IBlobHandler)
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def __init__(self, key, write_func):
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self.key = key
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self.write_func = write_func
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######## IBlobHandler #########
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def handle_blob(self, blob, blob_info):
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try:
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blob_decryptor = StreamBlobDecryptor(blob, self.key, binascii.unhexlify(blob_info.iv),
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blob_info.length)
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except ValueError as err:
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return defer.fail(err)
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d = blob_decryptor.decrypt(self.write_func)
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return d
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