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epub parser: take larges image from manifest, strip html tags from description

This commit is contained in:
j 2016-01-05 14:41:42 +05:30
parent d3c56670be
commit 78c9c5443f
1 changed files with 27 additions and 18 deletions
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45
oml/media/epub.py
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@ -11,6 +11,7 @@ from urllib.parse import unquote
from PIL import Image
import stdnum.isbn
from ox import strip_tags, decode_html
from utils import normalize_isbn, find_isbns, get_language
@ -36,27 +37,33 @@ def cover(path):
if opf:
info = ET.fromstring(z.read(opf[0]))
manifest = info.findall('{http://www.idpf.org/2007/opf}manifest')[0]
for e in manifest.getchildren():
if 'image' in e.attrib['media-type']:
images = [e for e in manifest.getchildren() if 'image' in e.attrib['media-type']]
if images:
image_data = []
for e in images:
filename = unquote(e.attrib['href'])
filename = os.path.normpath(os.path.join(os.path.dirname(opf[0]), filename))
if filename in files:
data = z.read(filename)
break
elif 'html' in e.attrib['media-type']:
filename = unquote(e.attrib['href'])
filename = os.path.normpath(os.path.join(os.path.dirname(opf[0]), filename))
html = z.read(filename).decode('utf-8', 'ignore')
img = re.compile('<img.*?src="(.*?)"').findall(html)
#svg image
img += re.compile('<image.*?href="(.*?)"').findall(html)
if img:
img = unquote(img[0])
img = os.path.normpath(os.path.join(os.path.dirname(filename), img))
if img in files:
logger.debug('using %s', img)
data = z.read(img)
break
image_data.append((filename, z.read(filename)))
if image_data:
image_data.sort(key=lambda i: len(i[1]))
data = image_data[-1][1]
if not data:
for e in manifest.getchildren():
if 'html' in e.attrib['media-type']:
filename = unquote(e.attrib['href'])
filename = os.path.normpath(os.path.join(os.path.dirname(opf[0]), filename))
html = z.read(filename).decode('utf-8', 'ignore')
img = re.compile('<img.*?src="(.*?)"').findall(html)
#svg image
img += re.compile('<image.*?href="(.*?)"').findall(html)
if img:
img = unquote(img[0])
img = os.path.normpath(os.path.join(os.path.dirname(filename), img))
if img in files:
logger.debug('using %s', img)
data = z.read(img)
break
if not data:
img = Image.new('RGB', (80, 128))
o = BytesIO()
@ -91,6 +98,8 @@ def info(epub):
data[key] = value.split(', ')
else:
data[key] = value
if 'description' in data:
data['description'] = strip_tags(decode_html(data['description']))
text = extract_text(epub)
data['textsize'] = len(text)
if not 'isbn' in data: