def read_image_data(self, fname, base=None):
if fname.startswith('file://'):
src = fname[len('file://'):]
if iswindows and src and src[0] == '/':
src = src[1:]
if not src or not os.path.exists(src):
raise LinkedImageNotFound(src)
with open(src, 'rb') as rawsrc:
raw = rawsrc.read()
else:
try:
raw = self.docx.read(fname)
except KeyError:
raise LinkedImageNotFound(fname)
base = base or image_filename(fname.rpartition('/')[-1]) or 'image'
ext = what(None, raw) or base.rpartition('.')[-1] or 'jpeg'
if ext == 'emf':
# For an example, see: https://bugs.launchpad.net/bugs/1224849
self.log('Found an EMF image: %s, trying to extract embedded raster image' % fname)
from calibre.utils.wmf.emf import emf_unwrap
try:
raw = emf_unwrap(raw)
except Exception:
self.log.exception('Failed to extract embedded raster image from EMF')
else:
ext = 'png'
base = base.rpartition('.')[0]
if not base:
base = 'image'
base += '.' + ext
return raw, base
def read_image_data(self, fname, base=None):
if fname.startswith('file://'):
src = fname[len('file://'):]
if iswindows and src and src[0] == '/':
src = src[1:]
if not src or not os.path.exists(src):
raise LinkedImageNotFound(src)
with open(src, 'rb') as rawsrc:
raw = rawsrc.read()
else:
try:
raw = self.docx.read(fname)
except KeyError:
raise LinkedImageNotFound(fname)
base = base or image_filename(fname.rpartition('/')[-1]) or 'image'
ext = what(None, raw) or base.rpartition('.')[-1] or 'jpeg'
if ext == 'emf':
# For an example, see: https://bugs.launchpad.net/bugs/1224849
self.log('Found an EMF image: %s, trying to extract embedded raster image' % fname)
from calibre.utils.wmf.emf import emf_unwrap
try:
raw = emf_unwrap(raw)
except Exception:
self.log.exception('Failed to extract embedded raster image from EMF')
else:
ext = 'png'
base = base.rpartition('.')[0]
if not base:
base = 'image'
base += '.' + ext
return raw, base
def generate_filename(self, rid, base=None, rid_map=None):
rid_map = self.rid_map if rid_map is None else rid_map
fname = rid_map[rid]
if fname in self.used:
return self.used[fname]
raw = self.docx.read(fname)
base = base or ascii_filename(rid_map[rid].rpartition('/')[-1]).replace(' ', '_') or 'image'
ext = what(None, raw) or base.rpartition('.')[-1] or 'jpeg'
if ext == 'emf':
# For an example, see: https://bugs.launchpad.net/bugs/1224849
self.log('Found an EMF image: %s, trying to extract embedded raster image' % base)
from calibre.utils.wmf.emf import emf_unwrap
try:
raw = emf_unwrap(raw)
except Exception as e:
self.log.exception('Failed to extract embedded raster image from EMF')
else:
ext = 'png'
base = base.rpartition('.')[0]
if not base:
base = 'image'
base += '.' + ext
exists = frozenset(self.used.itervalues())
c = 1
name = base
while name in exists:
n, e = base.rpartition('.')[0::2]
name = '%s-%d.%s' % (n, c, e)
c += 1
self.used[fname] = name
with open(os.path.join(self.dest_dir, name), 'wb') as f:
f.write(raw)
self.all_images.add('images/' + name)
return name
def read_image_data(self, fname, base=None):
if fname.startswith("file://"):
src = fname[len("file://") :]
if iswindows and src and src[0] == "/":
src = src[1:]
if not src or not os.path.exists(src):
raise LinkedImageNotFound(src)
with open(src, "rb") as rawsrc:
raw = rawsrc.read()
else:
raw = self.docx.read(fname)
base = base or ascii_filename(fname.rpartition("/")[-1]).replace(" ", "_") or "image"
ext = what(None, raw) or base.rpartition(".")[-1] or "jpeg"
if ext == "emf":
# For an example, see: https://bugs.launchpad.net/bugs/1224849
self.log("Found an EMF image: %s, trying to extract embedded raster image" % fname)
from calibre.utils.wmf.emf import emf_unwrap
try:
raw = emf_unwrap(raw)
except Exception:
self.log.exception("Failed to extract embedded raster image from EMF")
else:
ext = "png"
base = base.rpartition(".")[0]
if not base:
base = "image"
base += "." + ext
return raw, base
def generate_filename(self, rid, base=None, rid_map=None):
rid_map = self.rid_map if rid_map is None else rid_map
fname = rid_map[rid]
if fname in self.used:
return self.used[fname]
if fname.startswith('file://'):
src = fname[len('file://'):]
if iswindows and src and src[0] == '/':
src = src[1:]
if not src or not os.path.exists(src):
raise LinkedImageNotFound(src)
with open(src, 'rb') as rawsrc:
raw = rawsrc.read()
else:
raw = self.docx.read(fname)
base = base or ascii_filename(
rid_map[rid].rpartition('/')[-1]).replace(' ', '_') or 'image'
ext = what(None, raw) or base.rpartition('.')[-1] or 'jpeg'
if ext == 'emf':
# For an example, see: https://bugs.launchpad.net/bugs/1224849
self.log(
'Found an EMF image: %s, trying to extract embedded raster image'
% base)
from calibre.utils.wmf.emf import emf_unwrap
try:
raw = emf_unwrap(raw)
except Exception as e:
self.log.exception(
'Failed to extract embedded raster image from EMF')
else:
ext = 'png'
base = base.rpartition('.')[0]
if not base:
base = 'image'
base += '.' + ext
exists = frozenset(self.used.itervalues())
c = 1
name = base
while name in exists:
n, e = base.rpartition('.')[0::2]
name = '%s-%d.%s' % (n, c, e)
c += 1
self.used[fname] = name
with open(os.path.join(self.dest_dir, name), 'wb') as f:
f.write(raw)
self.all_images.add('images/' + name)
return name
