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Fix #2125742 [Error during convert to AZW3](https://bugs.launchpad.net/calibre/+bug/2125742)

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Kovid Goyal 2025-09-26 16:50:49 +05:30
parent a5fbde7f25
commit e2ef55140d
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1 changed files with 12 additions and 10 deletions
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22
src/calibre/utils/xml_parse.py
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@ -1,6 +1,8 @@
#!/usr/bin/env python
# License: GPL v3 Copyright: 2019, Kovid Goyal <kovid at kovidgoyal.net>
import sys
from lxml import etree
# resolving of SYSTEM entities is turned off as entities can cause
@ -23,16 +25,15 @@ def create_parser(recover, encoding=None):
def safe_xml_fromstring(string_or_bytes, recover=True):
ans = fs(string_or_bytes, parser=create_parser(recover))
if ans is None and recover:
try:
ans = fs(string_or_bytes, parser=create_parser(recover))
except etree.XMLSyntaxError:
# this happens on windows where if string_or_bytes is unicode and
# contains non-BMP chars lxml chokes
if not isinstance(string_or_bytes, bytes):
string_or_bytes = string_or_bytes.encode('utf-8')
ans = fs(string_or_bytes, parser=create_parser(True, encoding='utf-8'))
if ans is not None:
return ans
ans = fs(string_or_bytes, parser=create_parser(False))
# ebook-convert file.epub .azw3 -m metadata.opf
if sys.platform != 'win32' or not isinstance(string_or_bytes, str):
raise
ans = fs(string_or_bytes.encode('utf-8'), parser=create_parser(True, encoding='utf-8'))
return ans
@ -101,9 +102,10 @@ def find_tests():
def develop():
import sys
from calibre.ebooks.chardet import xml_to_unicode
# print(etree.tostring(fs('<r/>')).decode())
print(etree.tostring(safe_xml_fromstring(open(sys.argv[-1], 'rb').read())).decode())
data = xml_to_unicode(open(sys.argv[-1], 'rb').read(), strip_encoding_pats=True, assume_utf8=True, resolve_entities=True)[0]
print(etree.tostring(safe_xml_fromstring(data)).decode())
if __name__ == '__main__':