Onionr/onionr/onionrfragment.py

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2019-02-02 03:49:11 +00:00
'''
Onionr - P2P Anonymous Storage Network
This file contains the OnionrFragment class which implements the fragment system
'''
'''
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
'''
# onionr:10ch+10ch+10chgdecryptionkey
import core, sys, binascii, os
FRAGMENT_SIZE = 0.25
TRUNCATE_LENGTH = 30
class OnionrFragment:
def __init__(self, uri=None):
uri = uri.replace('onionr:', '')
count = 0
blocks = []
appendData = ''
key = ''
for x in uri:
if x == 'k':
key = uri[uri.index('k') + 1:]
appendData += x
if count == TRUNCATE_LENGTH:
blocks.append(appendData)
appendData = ''
count = 0
count += 1
self.key = key
self.blocks = blocks
return
@staticmethod
def generateFragments(data=None, coreInst=None):
if coreInst is None:
coreInst = core.Core()
key = os.urandom(32)
data = coreInst._crypto.symmetricEncrypt(data, key).decode()
blocks = []
blockData = b""
uri = "onionr:"
total = sys.getsizeof(data)
for x in data:
blockData += x.encode()
if round(len(blockData) / len(data), 3) > FRAGMENT_SIZE:
blocks.append(core.Core().insertBlock(blockData))
blockData = b""
for bl in blocks:
uri += bl[:TRUNCATE_LENGTH]
uri += "k"
uri += binascii.hexlify(key).decode()
return (uri, key)
if __name__ == '__main__':
uri = OnionrFragment.generateFragments("test")[0]
print(uri)
OnionrFragment(uri)