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LRF Input: Fix a regression that broke parsing LRF files. Fixes #1826970 [lrf format is not supported in any way](https://bugs.launchpad.net/calibre/+bug/1826970)

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Kovid Goyal 2019-04-30 08:48:13 +05:30
parent a2fa719545
commit bc7b5b05a7
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1 changed files with 4 additions and 8 deletions
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12
src/calibre/ebooks/lrf/meta.py
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@ -18,6 +18,7 @@ from shutil import copyfileobj
import xml.dom.minidom as dom
from functools import wraps
from calibre.ebooks.chardet import xml_to_unicode
from calibre.ebooks.metadata import MetaInformation, string_to_authors
from polyglot.builtins import unicode_type
@ -394,14 +395,9 @@ class LRFMetaFile(object):
if len(src) != self.uncompressed_info_size:
raise LRFException("Decompression of document meta info\
yielded unexpected results")
try:
return dom.parseString(src)
except:
try:
return dom.parseString(src.replace('\x00', '').strip())
except:
src = src.replace('\x00', '').strip().decode('latin1')
return dom.parseString(src.encode('utf-8'))
src = xml_to_unicode(src, strip_encoding_pats=True, resolve_entities=True, assume_utf8=True)[0]
return dom.parseString(src)
except zlib.error:
raise LRFException("Unable to decompress document meta information")