mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-07 18:40:02 +00:00
bbf6d9b026
Bugfix for feeds
- removed categories related and up
- load new books now working
- category random now working
login page is free of non accessible elements
boolean custom column is vivible in UI
books with only with certain languages can be shown
book shelfs can be deleted from UI
Anonymous user view is more resticted
Added browse of series in sidebar
Dependencys in vendor folder are updated to newer versions (licencs files are now present)
Bugfix editing Authors names
Made upload on windows working
171 lines
6.7 KiB
Python
171 lines
6.7 KiB
Python
######################## BEGIN LICENSE BLOCK ########################
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# The Original Code is Mozilla Universal charset detector code.
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#
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# The Initial Developer of the Original Code is
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# Netscape Communications Corporation.
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# Portions created by the Initial Developer are Copyright (C) 2001
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Mark Pilgrim - port to Python
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# Shy Shalom - original C code
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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# 02110-1301 USA
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######################### END LICENSE BLOCK #########################
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from . import constants
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import sys
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import codecs
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from .latin1prober import Latin1Prober # windows-1252
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from .mbcsgroupprober import MBCSGroupProber # multi-byte character sets
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from .sbcsgroupprober import SBCSGroupProber # single-byte character sets
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from .escprober import EscCharSetProber # ISO-2122, etc.
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import re
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MINIMUM_THRESHOLD = 0.20
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ePureAscii = 0
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eEscAscii = 1
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eHighbyte = 2
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class UniversalDetector:
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def __init__(self):
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self._highBitDetector = re.compile(b'[\x80-\xFF]')
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self._escDetector = re.compile(b'(\033|~{)')
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self._mEscCharSetProber = None
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self._mCharSetProbers = []
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self.reset()
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def reset(self):
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self.result = {'encoding': None, 'confidence': 0.0}
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self.done = False
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self._mStart = True
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self._mGotData = False
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self._mInputState = ePureAscii
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self._mLastChar = b''
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if self._mEscCharSetProber:
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self._mEscCharSetProber.reset()
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for prober in self._mCharSetProbers:
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prober.reset()
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def feed(self, aBuf):
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if self.done:
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return
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aLen = len(aBuf)
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if not aLen:
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return
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if not self._mGotData:
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# If the data starts with BOM, we know it is UTF
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if aBuf[:3] == codecs.BOM_UTF8:
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# EF BB BF UTF-8 with BOM
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self.result = {'encoding': "UTF-8-SIG", 'confidence': 1.0}
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elif aBuf[:4] == codecs.BOM_UTF32_LE:
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# FF FE 00 00 UTF-32, little-endian BOM
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self.result = {'encoding': "UTF-32LE", 'confidence': 1.0}
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elif aBuf[:4] == codecs.BOM_UTF32_BE:
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# 00 00 FE FF UTF-32, big-endian BOM
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self.result = {'encoding': "UTF-32BE", 'confidence': 1.0}
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elif aBuf[:4] == b'\xFE\xFF\x00\x00':
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# FE FF 00 00 UCS-4, unusual octet order BOM (3412)
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self.result = {
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'encoding': "X-ISO-10646-UCS-4-3412",
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'confidence': 1.0
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}
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elif aBuf[:4] == b'\x00\x00\xFF\xFE':
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# 00 00 FF FE UCS-4, unusual octet order BOM (2143)
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self.result = {
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'encoding': "X-ISO-10646-UCS-4-2143",
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'confidence': 1.0
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}
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elif aBuf[:2] == codecs.BOM_LE:
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# FF FE UTF-16, little endian BOM
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self.result = {'encoding': "UTF-16LE", 'confidence': 1.0}
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elif aBuf[:2] == codecs.BOM_BE:
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# FE FF UTF-16, big endian BOM
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self.result = {'encoding': "UTF-16BE", 'confidence': 1.0}
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self._mGotData = True
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if self.result['encoding'] and (self.result['confidence'] > 0.0):
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self.done = True
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return
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if self._mInputState == ePureAscii:
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if self._highBitDetector.search(aBuf):
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self._mInputState = eHighbyte
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elif ((self._mInputState == ePureAscii) and
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self._escDetector.search(self._mLastChar + aBuf)):
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self._mInputState = eEscAscii
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self._mLastChar = aBuf[-1:]
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if self._mInputState == eEscAscii:
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if not self._mEscCharSetProber:
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self._mEscCharSetProber = EscCharSetProber()
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if self._mEscCharSetProber.feed(aBuf) == constants.eFoundIt:
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self.result = {'encoding': self._mEscCharSetProber.get_charset_name(),
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'confidence': self._mEscCharSetProber.get_confidence()}
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self.done = True
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elif self._mInputState == eHighbyte:
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if not self._mCharSetProbers:
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self._mCharSetProbers = [MBCSGroupProber(), SBCSGroupProber(),
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Latin1Prober()]
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for prober in self._mCharSetProbers:
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if prober.feed(aBuf) == constants.eFoundIt:
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self.result = {'encoding': prober.get_charset_name(),
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'confidence': prober.get_confidence()}
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self.done = True
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break
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def close(self):
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if self.done:
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return
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if not self._mGotData:
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if constants._debug:
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sys.stderr.write('no data received!\n')
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return
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self.done = True
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if self._mInputState == ePureAscii:
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self.result = {'encoding': 'ascii', 'confidence': 1.0}
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return self.result
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if self._mInputState == eHighbyte:
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proberConfidence = None
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maxProberConfidence = 0.0
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maxProber = None
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for prober in self._mCharSetProbers:
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if not prober:
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continue
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proberConfidence = prober.get_confidence()
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if proberConfidence > maxProberConfidence:
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maxProberConfidence = proberConfidence
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maxProber = prober
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if maxProber and (maxProberConfidence > MINIMUM_THRESHOLD):
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self.result = {'encoding': maxProber.get_charset_name(),
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'confidence': maxProber.get_confidence()}
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return self.result
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if constants._debug:
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sys.stderr.write('no probers hit minimum threshhold\n')
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for prober in self._mCharSetProbers[0].mProbers:
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if not prober:
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continue
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sys.stderr.write('%s confidence = %s\n' %
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(prober.get_charset_name(),
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prober.get_confidence()))
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