def to_metadata(browser, log, entry_, timeout): # {{{
from lxml import etree
XPath = partial(etree.XPath, namespaces=NAMESPACES)
# total_results = XPath('//openSearch:totalResults')
# start_index = XPath('//openSearch:startIndex')
# items_per_page = XPath('//openSearch:itemsPerPage')
entry = XPath('//atom:entry')
entry_id = XPath('descendant::atom:id')
creator = XPath('descendant::dc:creator')
identifier = XPath('descendant::dc:identifier')
title = XPath('descendant::dc:title')
date = XPath('descendant::dc:date')
publisher = XPath('descendant::dc:publisher')
subject = XPath('descendant::dc:subject')
description = XPath('descendant::dc:description')
language = XPath('descendant::dc:language')
rating = XPath('descendant::gd:rating[@average]')
def get_text(extra, x):
try:
ans = x(extra)
if ans:
ans = ans[0].text
if ans and ans.strip():
return ans.strip()
except:
log.exception('Programming error:')
return None
id_url = entry_id(entry_)[0].text
google_id = id_url.split('/')[-1]
title_ = ': '.join([x.text for x in title(entry_)]).strip()
authors = [x.text.strip() for x in creator(entry_) if x.text]
if not authors:
authors = [_('Unknown')]
if not id_url or not title:
# Silently discard this entry
return None
mi = Metadata(title_, authors)
mi.identifiers = {'google':google_id}
try:
raw = get_details(browser, id_url, timeout)
feed = etree.fromstring(xml_to_unicode(clean_ascii_chars(raw),
strip_encoding_pats=True)[0])
extra = entry(feed)[0]
except:
log.exception('Failed to get additional details for', mi.title)
return mi
mi.comments = get_text(extra, description)
lang = canonicalize_lang(get_text(extra, language))
if lang:
mi.language = lang
mi.publisher = get_text(extra, publisher)
# ISBN
isbns = []
for x in identifier(extra):
t = str(x.text).strip()
if t[:5].upper() in ('ISBN:', 'LCCN:', 'OCLC:'):
if t[:5].upper() == 'ISBN:':
t = check_isbn(t[5:])
if t:
isbns.append(t)
if isbns:
mi.isbn = sorted(isbns, key=len)[-1]
mi.all_isbns = isbns
# Tags
try:
btags = [x.text for x in subject(extra) if x.text]
tags = []
for t in btags:
atags = [y.strip() for y in t.split('/')]
for tag in atags:
if tag not in tags:
tags.append(tag)
except:
log.exception('Failed to parse tags:')
tags = []
if tags:
mi.tags = [x.replace(',', ';') for x in tags]
# pubdate
pubdate = get_text(extra, date)
if pubdate:
from calibre.utils.date import parse_date, utcnow
try:
default = utcnow().replace(day=15)
mi.pubdate = parse_date(pubdate, assume_utc=True, default=default)
except:
log.error('Failed to parse pubdate %r'%pubdate)
# Ratings
for x in rating(extra):
try:
mi.rating = float(x.get('average'))
if mi.rating > 5:
mi.rating /= 2
except:
log.exception('Failed to parse rating')
# Cover
mi.has_google_cover = None
for x in extra.xpath(
'//*[@href and @rel="http://schemas.google.com/books/2008/thumbnail"]'):
mi.has_google_cover = x.get('href')
break
return mi
