mirror of
https://github.com/moparisthebest/SickRage
synced 2024-12-15 04:22:17 -05:00
219 lines
8.3 KiB
Python
219 lines
8.3 KiB
Python
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# Copyright (c) 2003-2005 Jimmy Retzlaff, 2008 Konstantin Yegupov
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# Unix version uses unrar command line executable
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import subprocess
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import gc
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import os, os.path
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import time, re
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from rar_exceptions import *
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class UnpackerNotInstalled(Exception): pass
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rar_executable_cached = None
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rar_executable_version = None
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def call_unrar(params):
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"Calls rar/unrar command line executable, returns stdout pipe"
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global rar_executable_cached
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if rar_executable_cached is None:
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for command in ('unrar', 'rar'):
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try:
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subprocess.Popen([command], stdout=subprocess.PIPE)
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rar_executable_cached = command
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break
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except OSError:
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pass
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if rar_executable_cached is None:
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raise UnpackerNotInstalled("No suitable RAR unpacker installed")
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assert type(params) == list, "params must be list"
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args = [rar_executable_cached] + params
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try:
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gc.disable() # See http://bugs.python.org/issue1336
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return subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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finally:
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gc.enable()
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class RarFileImplementation(object):
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def init(self, password=None):
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global rar_executable_version
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self.password = password
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stdoutdata, stderrdata = self.call('v', []).communicate()
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for line in stderrdata.splitlines():
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if line.strip().startswith("Cannot open"):
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raise FileOpenError
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if line.find("CRC failed")>=0:
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raise IncorrectRARPassword
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accum = []
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source = iter(stdoutdata.splitlines())
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line = ''
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while not (line.startswith('UNRAR')):
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line = source.next()
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signature = line
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# The code below is mighty flaky
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# and will probably crash on localized versions of RAR
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# but I see no safe way to rewrite it using a CLI tool
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if signature.startswith("UNRAR 4"):
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rar_executable_version = 4
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while not (line.startswith('Comment:') or line.startswith('Pathname/Comment')):
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if line.strip().endswith('is not RAR archive'):
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raise InvalidRARArchive
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line = source.next()
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while not line.startswith('Pathname/Comment'):
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accum.append(line.rstrip('\n'))
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line = source.next()
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if len(accum):
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accum[0] = accum[0][9:] # strip out "Comment:" part
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self.comment = '\n'.join(accum[:-1])
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else:
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self.comment = None
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elif signature.startswith("UNRAR 5"):
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rar_executable_version = 5
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line = source.next()
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while not line.startswith('Archive:'):
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if line.strip().endswith('is not RAR archive'):
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raise InvalidRARArchive
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accum.append(line.rstrip('\n'))
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line = source.next()
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if len(accum):
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self.comment = '\n'.join(accum[:-1]).strip()
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else:
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self.comment = None
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else:
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raise UnpackerNotInstalled("Unsupported RAR version, expected 4.x or 5.x, found: "
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+ signature.split(" ")[1])
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def escaped_password(self):
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return '-' if self.password == None else self.password
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def call(self, cmd, options=[], files=[]):
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options2 = options + ['p'+self.escaped_password()]
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soptions = ['-'+x for x in options2]
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return call_unrar([cmd]+soptions+['--',self.archiveName]+files)
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def infoiter(self):
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command = "v" if rar_executable_version == 4 else "l"
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stdoutdata, stderrdata = self.call(command, ['c-']).communicate()
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for line in stderrdata.splitlines():
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if line.strip().startswith("Cannot open"):
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raise FileOpenError
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accum = []
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source = iter(stdoutdata.splitlines())
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line = ''
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while not line.startswith('-----------'):
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if line.strip().endswith('is not RAR archive'):
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raise InvalidRARArchive
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if line.startswith("CRC failed") or line.startswith("Checksum error"):
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raise IncorrectRARPassword
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line = source.next()
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line = source.next()
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i = 0
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re_spaces = re.compile(r"\s+")
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if rar_executable_version == 4:
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while not line.startswith('-----------'):
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accum.append(line)
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if len(accum)==2:
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data = {}
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data['index'] = i
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# asterisks mark password-encrypted files
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data['filename'] = accum[0].strip().lstrip("*") # asterisks marks password-encrypted files
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fields = re_spaces.split(accum[1].strip())
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data['size'] = int(fields[0])
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attr = fields[5]
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data['isdir'] = 'd' in attr.lower()
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data['datetime'] = time.strptime(fields[3]+" "+fields[4], '%d-%m-%y %H:%M')
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data['comment'] = None
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yield data
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accum = []
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i += 1
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line = source.next()
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elif rar_executable_version == 5:
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while not line.startswith('-----------'):
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fields = line.strip().lstrip("*").split()
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data = {}
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data['index'] = i
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data['filename'] = " ".join(fields[4:])
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data['size'] = int(fields[1])
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attr = fields[0]
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data['isdir'] = 'd' in attr.lower()
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data['datetime'] = time.strptime(fields[2]+" "+fields[3], '%d-%m-%y %H:%M')
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data['comment'] = None
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yield data
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i += 1
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line = source.next()
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def read_files(self, checker):
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res = []
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for info in self.infoiter():
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checkres = checker(info)
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if checkres==True and not info.isdir:
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pipe = self.call('p', ['inul'], [info.filename]).stdout
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res.append((info, pipe.read()))
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return res
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def extract(self, checker, path, withSubpath, overwrite):
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res = []
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command = 'x'
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if not withSubpath:
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command = 'e'
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options = []
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if overwrite:
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options.append('o+')
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else:
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options.append('o-')
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if not path.endswith(os.sep):
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path += os.sep
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names = []
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for info in self.infoiter():
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checkres = checker(info)
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if type(checkres) in [str, unicode]:
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raise NotImplementedError("Condition callbacks returning strings are deprecated and only supported in Windows")
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if checkres==True and not info.isdir:
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names.append(info.filename)
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res.append(info)
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names.append(path)
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proc = self.call(command, options, names)
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stdoutdata, stderrdata = proc.communicate()
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if stderrdata.find("CRC failed")>=0 or stderrdata.find("Checksum error")>=0:
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raise IncorrectRARPassword
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return res
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def destruct(self):
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pass
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