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Refuse to set metadata in DRMed MOBI files as this can lead to files that dont work on the device

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Kovid Goyal 2009-02-25 16:15:33 -08:00
parent 9c3062a4b5
commit 3ea924b1d3
1 changed files with 3 additions and 0 deletions
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3
src/calibre/ebooks/metadata/mobi.py
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@ -81,6 +81,7 @@ class MetadataUpdater(object):
type = self.type = data[60:68]
self.nrecs, = unpack('>H', data[76:78])
record0 = self.record0 = self.record(0)
self.encryption_type, = unpack('>H', record0[12:14])
codepage, = unpack('>I', record0[28:32])
self.codec = 'utf-8' if codepage == 65001 else 'cp1252'
image_base, = unpack('>I', record0[108:112])
@ -134,6 +135,8 @@ class MetadataUpdater(object):
if self.thumbnail_record is not None:
recs.append((202, pack('>I', self.thumbnail_rindex)))
exth = StringIO()
if getattr(self, 'encryption_type', -1) != 0:
raise MobiError('Setting metadata in DRMed MOBI files is not supported.')
for code, data in recs:
exth.write(pack('>II', code, len(data) + 8))
exth.write(data)