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KF8 Input: Fix conversion/vieweing of KF8 files generated with the unreleased? kindlegen 2.7. Fixes #1067310 (Private bug)

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Kovid Goyal 2012-10-18 16:47:10 +05:30
parent 62c80eb670
commit 6915b2fae9
1 changed files with 3 additions and 6 deletions
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9
src/calibre/ebooks/mobi/reader/headers.py
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@ -172,12 +172,9 @@ class BookHeader(object):
self.codec = 'cp1252' if not user_encoding else user_encoding
log.warn('Unknown codepage %d. Assuming %s' % (self.codepage,
self.codec))
# There exists some broken DRM removal tool that removes DRM but
# leaves the DRM fields in the header yielding a header size of
# 0xF8. The actual value of max_header_length should be 0xE8 but
# it's changed to accommodate this silly tool. Hopefully that will
# not break anything else.
max_header_length = 0xF8
# Some KF8 files have header length == 256. See
# https://bugs.launchpad.net/bugs/1067310
max_header_length = 0x100
if (ident == 'TEXTREAD' or self.length < 0xE4 or
self.length > max_header_length or