adding crypt package wich replace desurveil rsa mapping by Kirmah algorythm
This commit is contained in:
a-Sansara
parent
7ea35b6aa8
commit
14a068a921
42
impra/cli.py
42
impra/cli.py
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@ -31,8 +31,9 @@
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from optparse import OptionParser, OptionGroup
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from optparse import OptionParser, OptionGroup
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import sys
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import sys
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import impra.util as util
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import impra.crypt as crypt
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import impra.core as core
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import impra.util as util
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import impra.core as core
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desc="""
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desc="""
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ImpraStorage provided a private imap access to store large files.
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ImpraStorage provided a private imap access to store large files.
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@ -40,9 +41,9 @@ Each file stored on the server is split in severals random parts.
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Each part also contains random noise data (lenght depends on a crypt key)
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Each part also contains random noise data (lenght depends on a crypt key)
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to ensure privacy and exclude easy merge without the corresponding key.
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to ensure privacy and exclude easy merge without the corresponding key.
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An index of files stored is encrypt (rsa 1024) and regularly updated.
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An index of files stored is encrypt (with the symmetric-key algorithm
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Once decrypt, it permit to perform search on the server and
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Kirmah) and regularly updated. Once decrypt, it permit to perform search
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download each part.
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on the server and download each part.
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transfert process is transparent. Just vizualize locally the index of
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transfert process is transparent. Just vizualize locally the index of
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stored files and simply select files to download or upload.
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stored files and simply select files to download or upload.
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@ -160,7 +161,7 @@ data command Examples:
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gpConf.add_option('-P', '--set-port' , help='set imap port' , action='store', metavar='PORT ')
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gpConf.add_option('-P', '--set-port' , help='set imap port' , action='store', metavar='PORT ')
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gpConf.add_option('-N', '--set-name' , help='set user name' , action='store', metavar='NAME ')
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gpConf.add_option('-N', '--set-name' , help='set user name' , action='store', metavar='NAME ')
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gpConf.add_option('-B', '--set-boxn' , help='set boxName on imap server (default:[%default])' , action='store', metavar='BOXNAME ')
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gpConf.add_option('-B', '--set-boxn' , help='set boxName on imap server (default:[%default])' , action='store', metavar='BOXNAME ')
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gpConf.add_option('-K', '--gen-keys' , help='generate new pub/private keys' , action='store_true', default=False)
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gpConf.add_option('-K', '--gen-keys' , help='generate new key' , action='store_true', default=False)
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gpConf.add_option('-A', '--active-profile', help='set active profile' , action='store', metavar='PROFILE ')
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gpConf.add_option('-A', '--active-profile', help='set active profile' , action='store', metavar='PROFILE ')
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parser.add_option_group(gpConf)
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parser.add_option_group(gpConf)
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@ -203,10 +204,10 @@ data command Examples:
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if o.set_port: ini.set('port', o.set_port,o.active_profile+'.imap')
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if o.set_port: ini.set('port', o.set_port,o.active_profile+'.imap')
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if o.set_name: ini.set('name', o.set_name,o.active_profile+'.infos')
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if o.set_name: ini.set('name', o.set_name,o.active_profile+'.infos')
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if o.gen_keys:
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if o.gen_keys:
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rsa = util.Rsa(None,None,path,True)
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kg = crypt.KeyGen(256)
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self.ini.set('prvKey',rsa.prvKey,o.active_profile+'.keys')
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self.ini.set('key' ,kg.key,o.active_profile+'.keys')
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self.ini.set('pubKey',rsa.pubKey,o.active_profile+'.keys')
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self.ini.set('mark',kg.mark,o.active_profile+'.keys')
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self.ini.set('salt' ,'-¤-ImpraStorage-¤-',o.active_profile+'.keys')
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self.ini.set('salt','-¤-ImpraStorage-¤-',o.active_profile+'.keys')
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if self.check_profile(o.active_profile):
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if self.check_profile(o.active_profile):
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self.ini.set('profile', o.active_profile)
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self.ini.set('profile', o.active_profile)
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self.ini.write()
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self.ini.write()
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@ -224,10 +225,9 @@ data command Examples:
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if self.check_profile(o.active_profile):
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if self.check_profile(o.active_profile):
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conf = core.ImpraConf(self.ini,o.active_profile)
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conf = core.ImpraConf(self.ini,o.active_profile)
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rsa = util.Rsa(conf.get('prvKey','keys'),conf.get('pubKey','keys'))
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impst = None
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impst = None
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try:
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try:
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impst = core.ImpraStorage(rsa, conf)
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impst = core.ImpraStorage(conf)
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except util.BadKeysException as e :
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except util.BadKeysException as e :
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print('Error : ')
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print('Error : ')
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print(e)
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print(e)
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@ -237,15 +237,27 @@ you can remove index but all presents files on the box %s will be unrecoverable
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""" % (o.active_profile, conf.get('box','imap')))
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""" % (o.active_profile, conf.get('box','imap')))
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remIndex = input('remove index ? (yes/no)')
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remIndex = input('remove index ? (yes/no)')
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if remIndex.lower()=='yes':
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if remIndex.lower()=='yes':
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impst = core.ImpraStorage(rsa, conf, True)
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impst = core.ImpraStorage(conf, True)
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else :
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else :
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print('bye')
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print('bye')
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sys.exit(1)
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sys.exit(1)
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if o.list :
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if o.list :
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if impst.index != None:
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if impst.index != None:
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impst.index.print(True,'-'*120+'\n -- INDEX '+impst.rootBox+'\n'+'-'*120)
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impst.index.print(True,'-'*120+'\n -- INDEX(`'+conf.get('uid','index')+'`) boxname :`'+impst.rootBox+'` '+conf.get('date','index')+'\n'+'-'*120)
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impst.index.impracrypt()
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#encData = impst.index.impraEncrypt(impst.index.toString())
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#~ dd = """coucou mon joli coeur :*:* je s"""
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#~ kg = crypt.KeyGen(256)
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#~ print('-- key --')
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#~ print(kg.key)
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#~ print('-- mark --')
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#~ print(kg.mark)
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#~ km = crypt.Kirmah(kg.key, kg.mark)
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#~ encData = km.encrypt(dd,'.index',22)
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#~ print('*'+encData+'*')
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#~ decData = km.decrypt(encData,'.index',22)
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#~ print('*'+decData+'*')
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elif o.add :
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elif o.add :
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impst.addFile(o.add[0],o.add[1],o.user,o.category)
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impst.addFile(o.add[0],o.add[1],o.user,o.category)
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156
impra/core.py
156
impra/core.py
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@ -29,7 +29,7 @@
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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# ~~ package core ~~
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# ~~ package core ~~
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from base64 import urlsafe_b64encode
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from base64 import urlsafe_b64encode, b64decode
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from binascii import b2a_base64, a2b_base64
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from binascii import b2a_base64, a2b_base64
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from email.encoders import encode_base64
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from email.encoders import encode_base64
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from email.header import Header
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from email.header import Header
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@ -43,51 +43,11 @@ from os import remove, urandom, sep
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from os.path import abspath, dirname, join, realpath, basename, getsize, splitext
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from os.path import abspath, dirname, join, realpath, basename, getsize, splitext
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from re import split as regsplit
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from re import split as regsplit
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from impra.imap import ImapHelper, ImapConfig
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from impra.imap import ImapHelper, ImapConfig
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from impra.util import __CALLER__, Rsa, RuTime, Noiser, Randomiz, RuTime, hash_sha256, formatBytes, randomFrom, bstr, quote_escape, stack, run, file_exists, get_file_content, get_file_binary
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from impra.util import __CALLER__, RuTime, formatBytes, randomFrom, bstr, quote_escape, stack, run, file_exists, get_file_content
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from impra.crypt import Kirmah, ConfigKey, Noiser, Randomiz, hash_sha256
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DEBUG = True
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DEBUG = True
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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# ~~ class ConfigKey ~~
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class ConfigKey:
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""""""
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def __init__(self, key=None, psize=19710000):
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""""""
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if key : self.key = bytes(key,'utf-8')
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else : self.key = self._build()
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self.psize = psize
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self.salt = str(self.key[::-4])
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self.noiser = Noiser(self.key)
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self.rdmz = Randomiz(1)
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def getHashList(self,name,count,noSorted=False):
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""""""
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rt = RuTime(eval(__CALLER__('"%s",%s,%i' % (name,count,noSorted))))
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self.rdmz.new(count)
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dic, lst, hroot = {}, [], hash_sha256(self.salt+name)
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for i in range(count) :
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self.noiser.build(i)
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d = str(i).rjust(2,'0')
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# part n°, hash, lns, lne, pos
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hpart = hash_sha256(self.salt+name+'.part'+d)[:-3]+str(ord(hroot[i])).rjust(3,'0')
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lst.append((d, hpart, self.noiser.lns, self.noiser.lne, self.rdmz.get()))
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dic['head'] = [name,count,hroot,self.getKey()]
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if not noSorted :
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lst = sorted(lst, key=lambda lst: lst[4])
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dic['data'] = lst
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rt.stop()
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return dic
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def _build(self,l=48):
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""""""
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return urlsafe_b64encode(urandom(l))
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def getKey(self):
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""""""
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return str(self.key,'utf-8')
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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# ~~ class FSplitter ~~
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# ~~ class FSplitter ~~
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@ -131,6 +91,7 @@ class FSplitter :
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m = mmap(f.fileno(), 0)
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m = mmap(f.fileno(), 0)
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p = 0
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p = 0
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psize = ceil(getsize(fromPath)/hlst['head'][1])
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psize = ceil(getsize(fromPath)/hlst['head'][1])
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print(str(psize))
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while m.tell() < m.size():
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while m.tell() < m.size():
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self._splitPart(m,p,psize,hlst['data'][p])
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self._splitPart(m,p,psize,hlst['data'][p])
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p += 1
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p += 1
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@ -144,7 +105,10 @@ class FSplitter :
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""""""
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""""""
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rt = RuTime(eval(__CALLER__('mmap,%s,%s,phlist' % (part,size))))
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rt = RuTime(eval(__CALLER__('mmap,%s,%s,phlist' % (part,size))))
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with open(self.DIR_OUTBOX+phlst[1]+'.ipr', mode='wb') as o:
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with open(self.DIR_OUTBOX+phlst[1]+'.ipr', mode='wb') as o:
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#~ print(self.DIR_OUTBOX+phlst[1]+'.ipr')
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#~ print(str(phlst[2])+' - '+str(size)+' - '+str(phlst[3])+' = '+str(phlst[2]+size+phlst[3]))
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o.write(self.ck.noiser.getNoise(phlst[2])+mmap.read(size)+self.ck.noiser.getNoise(phlst[3]))
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o.write(self.ck.noiser.getNoise(phlst[2])+mmap.read(size)+self.ck.noiser.getNoise(phlst[3]))
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rt.stop()
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rt.stop()
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def deployFile(self, hlst, ext='', fake=False):
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def deployFile(self, hlst, ext='', fake=False):
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@ -187,15 +151,15 @@ class ImpraConf:
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save = False
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save = False
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if self.ini.isEmpty():
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if self.ini.isEmpty():
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save = True
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save = True
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rsa = Rsa()
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kg = crypt.KeyGen(256)
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self.set('host','host','imap')
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self.set('host' ,'host','imap')
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self.set('port','993','imap')
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self.set('port' ,'993','imap')
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self.set('user','login','imap')
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self.set('user' ,'login','imap')
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self.set('pass','password','imap')
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self.set('pass' ,'password','imap')
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self.set('box' ,'__IMPRA','imap')
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self.set('box' ,'__IMPRA','imap')
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self.set('pubKey',rsa.pubKey,'keys')
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self.set('key' ,kg.key,'keys')
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self.set('prvKey',rsa.prvKey,'keys')
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self.set('mark' ,kg.mark,'keys')
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self.set('salt' ,'-¤-ImpraStorage-¤-','keys')
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self.set('salt' ,'-¤-ImpraStorage-¤-','keys')
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if not self.ini.hasSection(self.profile+self.SEP_SECTION+'catg'):
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if not self.ini.hasSection(self.profile+self.SEP_SECTION+'catg'):
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save = True
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save = True
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try:
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try:
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@ -244,23 +208,22 @@ class ImpraIndex:
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"""Separator used for internal key such categories"""
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"""Separator used for internal key such categories"""
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def __init__(self, rsa, encdata='', dicCategory={}, id=0):
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def __init__(self, key, mark, encdata='', dicCategory={}, id=0):
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"""Initialize the index with rsa and encoded data
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"""Initialize the index with rsa and encoded data
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:Parameters:
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:Parameters:
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`rsa` : impra.Rsa
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`key` : str
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Rsa instance initialized with appropriate private and public
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appropriate key to decrypt/encrypt data
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keys to decrypt/encrypt data
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`mark` : str
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appropriate mark to check correct key
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`encdata` : str
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`encdata` : str
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initial content of the index encrypted with rsa
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initial content of the index encrypted with rsa
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"""
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"""
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self.ck = ConfigKey('b-gs_bv1qyb_UFUwPWhm8xM3KJU1k2UBNfjgRBQhvkY2KYI_BF0RBTiqoqDaJlaP')
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self.km = Kirmah(key, mark)
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self.fspl = FSplitter(self.ck,join(rsa.dpath,'wk')+sep)
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self.rsa = rsa
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self.dic = {}
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self.dic = {}
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self.id = id
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self.id = id
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if encdata =='' : data = encdata
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if encdata =='' : data = encdata
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else : data = self.rsa.decrypt(encdata)
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else : data = self.decrypt(encdata)
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data = data.replace(self.QUOTE_REPL, '\'')
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data = data.replace(self.QUOTE_REPL, '\'')
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ld = regsplit('\n?\r? ?'+self.SEP_CATEGORY+' ?\n\r??',data)
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ld = regsplit('\n?\r? ?'+self.SEP_CATEGORY+' ?\n\r??',data)
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l = regsplit(self.SEP_ITEM,ld[0])
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l = regsplit(self.SEP_ITEM,ld[0])
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for i in v:
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for i in v:
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data += str(i)+self.SEP_TOKEN
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data += str(i)+self.SEP_TOKEN
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else :
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else :
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data += str(v[6]).rjust(1+ceil(len(str(v[6]))/10),' ')+' '
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data += str(v[6]).rjust(1+ceil(len(str(v[6]))/10),' ')+' '
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for i in v[:-1]:
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data += str(v[0])[0:42]+'... '
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data += str(i)+self.SEP_TOKEN
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data += str(v[1]).ljust(30,' ')+' '
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for i in v[2:-1]:
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data += str(i)+' '
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data = data.rstrip(self.SEP_TOKEN)+self.SEP_ITEM
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data = data.rstrip(self.SEP_TOKEN)+self.SEP_ITEM
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if not withoutCatg :
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if not withoutCatg :
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data += self.SEP_CATEGORY+'\n'+cdata
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data += self.SEP_CATEGORY+'\n'+cdata
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@ -330,66 +295,22 @@ class ImpraIndex:
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def encrypt(self):
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def encrypt(self):
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""""""
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""""""
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return self.rsa.encrypt(self.toString().replace('\'', self.QUOTE_REPL))
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return self.km.encrypt(self.toString().replace('\'', self.QUOTE_REPL),'.index',22)
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def impracrypt(self):
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def decrypt(self,data):
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""""""
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""""""
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data = self.toString().replace('\'', self.QUOTE_REPL)
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if data!='': data = self.km.decrypt(data,'.index',22)
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return data
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with open(self.rsa.dpath+'.tmpdecd2', mode='w', encoding='utf-8') as o:
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o.write(data)
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hlst = self.fspl.addFile(self.rsa.dpath+'.tmpdecd2','.index',12)
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print(hlst['head'])
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hlst['data'] = sorted(hlst['data'], reverse=True, key=lambda lst: lst[4])
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data = b''
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encA = []
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for row in hlst['data']:
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data += get_file_binary(self.fspl.DIR_OUTBOX+row[1]+'.ipr')
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encA.append(get_file_binary(self.fspl.DIR_OUTBOX+row[1]+'.ipr'))
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print(row)
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encData = b2a_base64(data)
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with open(self.rsa.dpath+'.tmpencd2', mode='wb') as o:
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o.write(encData)
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print('-- enc DATA --')
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#print(encData)
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decData = a2b_base64(encData)
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print(type(decData))
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print(len(decData))
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#print(str(decData))
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encB = hlst['head'][1]*[None]
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stpos = 0
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tsize = 0
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print('total size : '+str(len(decData)))
|
|
||||||
for row in hlst['data']:
|
|
||||||
thesize = row[2]+hlst['head'][4]+row[3]
|
|
||||||
print(str(row[4])+' - '+row[1]+' ('+str(thesize)+')')
|
|
||||||
print('spos = '+str(stpos))
|
|
||||||
print(stpos)
|
|
||||||
epos = stpos+row[2]+hlst['head'][4]+row[3]
|
|
||||||
print('epos = '+str(epos)+'('+str(row[2])+','+str(hlst['head'][4])+','+str(row[3])+') ['+str(thesize)+']')
|
|
||||||
print(epos)
|
|
||||||
dd = decData[stpos:epos]
|
|
||||||
stpos = epos+1
|
|
||||||
print('----------')
|
|
||||||
print(dd)
|
|
||||||
print('-----------------------------------')
|
|
||||||
tsize += thesize
|
|
||||||
with open(self.fspl.DIR_OUTBOX+row[1]+'.ipr2', mode='wb') as o:
|
|
||||||
o.write(dd)
|
|
||||||
print('total size : '+str(tsize))
|
|
||||||
print('-- decoding DATA2 --')
|
|
||||||
for row in hlst['data']:
|
|
||||||
print(row)
|
|
||||||
hlst['data'] = sorted(hlst['data'], reverse=False, key=lambda lst: lst[4])
|
|
||||||
self.fspl.deployFile(hlst, '.dec', True)
|
|
||||||
|
|
||||||
def print(self,withoutCatg=False, header=''):
|
def print(self,withoutCatg=False, header=''):
|
||||||
"""Print index content as formated bloc"""
|
"""Print index content as formated bloc"""
|
||||||
data = self.toString(withoutCatg,True).split(';')
|
data = self.toString(withoutCatg,True).split(';')
|
||||||
print(header)
|
print(header)
|
||||||
|
print('id'+' '*2+'hash'+' '*43+'label'+' '*26+'part'+' '*2+'type'+' '*3+'from'+' '*11+'category')
|
||||||
|
print('-'*120)
|
||||||
for row in data:
|
for row in data:
|
||||||
if row.rstrip('\n') != '': print(row)
|
if row.rstrip('\n') != '': print(row)
|
||||||
|
print('-'*120)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -399,7 +320,7 @@ class ImpraIndex:
|
||||||
class ImpraStorage:
|
class ImpraStorage:
|
||||||
""""""
|
""""""
|
||||||
|
|
||||||
def __init__(self, rsa, conf, remIndex=False, wkdir=None):
|
def __init__(self, conf, remIndex=False, wkdir=None):
|
||||||
""""""
|
""""""
|
||||||
if wkdir == None : wkdir = abspath(join(dirname( __file__ ), '..', 'wk'))
|
if wkdir == None : wkdir = abspath(join(dirname( __file__ ), '..', 'wk'))
|
||||||
self.wkdir = wkdir
|
self.wkdir = wkdir
|
||||||
|
|
@ -409,7 +330,6 @@ class ImpraStorage:
|
||||||
iconf = ImapConfig(self.conf.get('host','imap'), self.conf.get('port','imap'), self.conf.get('user', 'imap'), self.conf.get('pass', 'imap'))
|
iconf = ImapConfig(self.conf.get('host','imap'), self.conf.get('port','imap'), self.conf.get('user', 'imap'), self.conf.get('pass', 'imap'))
|
||||||
self.ih = ImapHelper(iconf,self.rootBox)
|
self.ih = ImapHelper(iconf,self.rootBox)
|
||||||
self.mb = MailBuilder(self.conf.get('salt','keys'))
|
self.mb = MailBuilder(self.conf.get('salt','keys'))
|
||||||
self.rsa = rsa
|
|
||||||
self.fsplit = FSplitter(ConfigKey(),self.wkdir)
|
self.fsplit = FSplitter(ConfigKey(),self.wkdir)
|
||||||
self.delids = []
|
self.delids = []
|
||||||
if remIndex : self.removeIndex()
|
if remIndex : self.removeIndex()
|
||||||
|
|
@ -457,14 +377,14 @@ class ImpraStorage:
|
||||||
self._getIdIndex()
|
self._getIdIndex()
|
||||||
if self.idx :
|
if self.idx :
|
||||||
# getFromFile
|
# getFromFile
|
||||||
if int(self.idx) == int(uid) and file_exists(self.pathInd):
|
if uid != None and int(self.idx) == int(uid) and file_exists(self.pathInd):
|
||||||
encData = get_file_content(self.pathInd)
|
encData = get_file_content(self.pathInd)
|
||||||
print('cache')
|
print('cache')
|
||||||
else:
|
else:
|
||||||
encData = self._getCryptIndex()
|
encData = self._getCryptIndex()
|
||||||
with open(self.pathInd, mode='w', encoding='utf-8') as o:
|
with open(self.pathInd, mode='w', encoding='utf-8') as o:
|
||||||
o.write(encData)
|
o.write(encData)
|
||||||
index = ImpraIndex(self.rsa, encData, {'catg':self.conf.get('types','catg')}, int(nid))
|
index = ImpraIndex(self.conf.get('key','keys'),self.conf.get('mark','keys'), encData, {'catg':self.conf.get('types','catg')}, int(nid))
|
||||||
rt.stop()
|
rt.stop()
|
||||||
return index
|
return index
|
||||||
|
|
||||||
|
|
|
||||||
316
impra/crypt.py
Normal file
316
impra/crypt.py
Normal file
File diff suppressed because one or more lines are too long
|
|
@ -165,26 +165,26 @@ def __CALLER__(args=''):
|
||||||
class Noiser:
|
class Noiser:
|
||||||
""""""
|
""""""
|
||||||
|
|
||||||
KEY_LEN = 64
|
KEY_LEN = 256
|
||||||
""""""
|
""""""
|
||||||
|
|
||||||
def __init__(self, key, part=0):
|
def __init__(self, key, part=0):
|
||||||
""""""
|
""""""
|
||||||
if len(key)!=self.KEY_LEN :
|
|
||||||
raise Exception('Invalid Pass length')
|
#~ if len(key)!=self.KEY_LEN :
|
||||||
else :
|
#~ raise Exception('Invalid Pass length')
|
||||||
self.key = key
|
#~ else :
|
||||||
self.build(part)
|
self.key = key
|
||||||
|
self.build(part)
|
||||||
|
|
||||||
def build(self, part):
|
def build(self, part):
|
||||||
""""""
|
""""""
|
||||||
if not part < self.KEY_LEN-1 : raise Exception('part exceed limit')
|
if not part < self.KEY_LEN-1 : raise Exception('part exceed limit')
|
||||||
else :
|
else :
|
||||||
self.part, v = part, 0
|
self.part, v = part, 0
|
||||||
for i in self.key[::-2] : v += i
|
v = int(ceil((self.key[22]+v)/4.20583))
|
||||||
v = int(ceil(v/4.22))
|
self.lns = int(ceil(v/2))-self.key[self.part]+self.key[7]
|
||||||
self.lns = int(ceil(v/2))-self.key[self.part]
|
self.lne = int(v-self.lns-self.key[self.part+2]-self.key[44]/2.1934)
|
||||||
self.lne = int(v-self.lns-self.key[self.part+2])
|
|
||||||
|
|
||||||
def getNoise(self, l):
|
def getNoise(self, l):
|
||||||
""""""
|
""""""
|
||||||
|
|
@ -197,20 +197,21 @@ class Noiser:
|
||||||
class Randomiz:
|
class Randomiz:
|
||||||
""""""
|
""""""
|
||||||
|
|
||||||
def __init__(self,count):
|
def __init__(self,count,chl=None):
|
||||||
""""""
|
""""""
|
||||||
self.lst = list(range(0,count))
|
if chl ==None : self.lst = list(range(0,count))
|
||||||
|
else: self.lst = chl
|
||||||
self.count = len(self.lst)
|
self.count = len(self.lst)
|
||||||
|
|
||||||
def new(self,count=None):
|
def new(self,count=None, chl=None):
|
||||||
""""""
|
""""""
|
||||||
if count : self.count = count
|
if count : self.count = count
|
||||||
self.__init__(self.count)
|
self.__init__(self.count,chl)
|
||||||
|
|
||||||
def get(self):
|
def get(self,single=True):
|
||||||
""""""
|
""""""
|
||||||
pos = choice(self.lst)
|
pos = choice(self.lst)
|
||||||
del self.lst[self.lst.index(pos)]
|
if single: del self.lst[self.lst.index(pos)]
|
||||||
return pos
|
return pos
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -400,3 +401,28 @@ class Rsa:
|
||||||
else :
|
else :
|
||||||
decData = str(rs[1],'utf-8')
|
decData = str(rs[1],'utf-8')
|
||||||
return decData
|
return decData
|
||||||
|
|
||||||
|
|
||||||
|
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
# ~~ class StrIterator ~~
|
||||||
|
|
||||||
|
class StrIterator:
|
||||||
|
|
||||||
|
MAX_ITER = 1000
|
||||||
|
|
||||||
|
def __init__(self,data):
|
||||||
|
self.l = len(data)
|
||||||
|
self.p = ceil(self.l/self.MAX_ITER)
|
||||||
|
self.d = []
|
||||||
|
for x in range(self.p):
|
||||||
|
self.d.append(data[x*self.MAX_ITER:x*self.MAX_ITER+self.MAX_ITER])
|
||||||
|
|
||||||
|
def __iter__(self):
|
||||||
|
self.i = 0
|
||||||
|
return self
|
||||||
|
|
||||||
|
def __next__(self):
|
||||||
|
if self.i > len(self.d)-1 :
|
||||||
|
raise StopIteration
|
||||||
|
self.i += 1
|
||||||
|
return self.d[self.i-1]
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue
Block a user