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mirror of https://github.com/moparisthebest/SickRage synced 2024-11-11 03:45:01 -05:00
SickRage/lib/hachoir_core/field/padding.py
echel0n 0d9fbc1ad7 Welcome to our SickBeard-TVRage Edition ...
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer.

Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer.

Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk!

Enjoy!
2014-03-09 22:39:12 -07:00

139 lines
4.4 KiB
Python

from lib.hachoir_core.field import Bits, Bytes
from lib.hachoir_core.tools import makePrintable, humanFilesize
from lib.hachoir_core import config
class PaddingBits(Bits):
"""
Padding bits used, for example, to align address (of next field).
See also NullBits and PaddingBytes types.
Arguments:
* nbits: Size of the field in bits
Optional arguments:
* pattern (int): Content pattern, eg. 0 if all bits are set to 0
"""
static_size = staticmethod(lambda *args, **kw: args[1])
MAX_SIZE = 128
def __init__(self, parent, name, nbits, description="Padding", pattern=None):
Bits.__init__(self, parent, name, nbits, description)
self.pattern = pattern
self._display_pattern = self.checkPattern()
def checkPattern(self):
if not(config.check_padding_pattern):
return False
if self.pattern != 0:
return False
if self.MAX_SIZE < self._size:
value = self._parent.stream.readBits(
self.absolute_address, self.MAX_SIZE, self._parent.endian)
else:
value = self.value
if value != 0:
self.warning("padding contents doesn't look normal (invalid pattern)")
return False
if self.MAX_SIZE < self._size:
self.info("only check first %u bits" % self.MAX_SIZE)
return True
def createDisplay(self):
if self._display_pattern:
return u"<padding pattern=%s>" % self.pattern
else:
return Bits.createDisplay(self)
class PaddingBytes(Bytes):
"""
Padding bytes used, for example, to align address (of next field).
See also NullBytes and PaddingBits types.
Arguments:
* nbytes: Size of the field in bytes
Optional arguments:
* pattern (str): Content pattern, eg. "\0" for nul bytes
"""
static_size = staticmethod(lambda *args, **kw: args[1]*8)
MAX_SIZE = 4096
def __init__(self, parent, name, nbytes,
description="Padding", pattern=None):
""" pattern is None or repeated string """
assert (pattern is None) or (isinstance(pattern, str))
Bytes.__init__(self, parent, name, nbytes, description)
self.pattern = pattern
self._display_pattern = self.checkPattern()
def checkPattern(self):
if not(config.check_padding_pattern):
return False
if self.pattern is None:
return False
if self.MAX_SIZE < self._size/8:
self.info("only check first %s of padding" % humanFilesize(self.MAX_SIZE))
content = self._parent.stream.readBytes(
self.absolute_address, self.MAX_SIZE)
else:
content = self.value
index = 0
pattern_len = len(self.pattern)
while index < len(content):
if content[index:index+pattern_len] != self.pattern:
self.warning(
"padding contents doesn't look normal"
" (invalid pattern at byte %u)!"
% index)
return False
index += pattern_len
return True
def createDisplay(self):
if self._display_pattern:
return u"<padding pattern=%s>" % makePrintable(self.pattern, "ASCII", quote="'")
else:
return Bytes.createDisplay(self)
def createRawDisplay(self):
return Bytes.createDisplay(self)
class NullBits(PaddingBits):
"""
Null padding bits used, for example, to align address (of next field).
See also PaddingBits and NullBytes types.
Arguments:
* nbits: Size of the field in bits
"""
def __init__(self, parent, name, nbits, description=None):
PaddingBits.__init__(self, parent, name, nbits, description, pattern=0)
def createDisplay(self):
if self._display_pattern:
return "<null>"
else:
return Bits.createDisplay(self)
class NullBytes(PaddingBytes):
"""
Null padding bytes used, for example, to align address (of next field).
See also PaddingBytes and NullBits types.
Arguments:
* nbytes: Size of the field in bytes
"""
def __init__(self, parent, name, nbytes, description=None):
PaddingBytes.__init__(self, parent, name, nbytes, description, pattern="\0")
def createDisplay(self):
if self._display_pattern:
return "<null>"
else:
return Bytes.createDisplay(self)