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[Bug] Workaround a strange problem when extracting some SNB files with PDF contents.

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This commit is contained in:
Li Fanxi 2011-03-02 23:25:53 +08:00
parent 9097d1937f
commit 60c7c66349
1 changed files with 7 additions and 4 deletions
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9
src/calibre/ebooks/snb/snbfile.py
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@ -75,15 +75,18 @@ class SNBFile:
for i in range(self.plainBlock):
bzdc = bz2.BZ2Decompressor()
if (i < self.plainBlock - 1):
bSize = self.blocks[self.binBlock + i + 1].Offset - self.blocks[self.binBlock + i].Offset;
bSize = self.blocks[self.binBlock + i + 1].Offset - self.blocks[self.binBlock + i].Offset
else:
bSize = self.tailOffset - self.blocks[self.binBlock + i].Offset;
snbFile.seek(self.blocks[self.binBlock + i].Offset);
bSize = self.tailOffset - self.blocks[self.binBlock + i].Offset
snbFile.seek(self.blocks[self.binBlock + i].Offset)
try:
data = snbFile.read(bSize)
if len(data) < 32768:
uncompressedData += bzdc.decompress(data)
except Exception, e:
print e
if len(uncompressedData) != self.plainStreamSizeUncompressed:
raise Exception()
f.fileBody = uncompressedData[plainPos:plainPos+f.fileSize]
plainPos += f.fileSize
elif f.attr & 0x01000000 == 0x01000000: