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EPUB Input: Handle EPUB files with multiple OPF files. Fixes #7229 (E-book Viewer crash: "IndexError:list index out of range")

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This commit is contained in:
Kovid Goyal 2010-10-19 08:45:14 -06:00
parent d463eff5ea
commit 730bbb2d09
1 changed files with 28 additions and 6 deletions
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24
src/calibre/ebooks/epub/input.py
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@ -108,6 +108,27 @@ class EPUBInput(InputFormatPlugin):
open('calibre_raster_cover.jpg', 'wb').write(
renderer)
def find_opf(self):
def attr(n, attr):
for k, v in n.attrib.items():
if k.endswith(attr):
return v
try:
with open('META-INF/container.xml') as f:
root = etree.fromstring(f.read())
for r in root.xpath('//*[local-name()="rootfile"]'):
if attr(r, 'media-type') != "application/oebps-package+xml":
continue
path = attr(r, 'full-path')
if not path:
continue
path = os.path.join(os.getcwdu(), *path.split('/'))
if os.path.exists(path):
return path
except:
import traceback
traceback.print_exc()
def convert(self, stream, options, file_ext, log, accelerators):
from calibre.utils.zipfile import ZipFile
from calibre import walk
@ -116,7 +137,8 @@ class EPUBInput(InputFormatPlugin):
zf = ZipFile(stream)
zf.extractall(os.getcwd())
encfile = os.path.abspath(os.path.join('META-INF', 'encryption.xml'))
opf = None
opf = self.find_opf()
if opf is None:
for f in walk(u'.'):
if f.lower().endswith('.opf') and '__MACOSX' not in f and \
not os.path.basename(f).startswith('.'):