96 lines
3 KiB
Python
96 lines
3 KiB
Python
# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division
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from ox.cache import read_url
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import lxml.html
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import re
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import hashlib
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from utils import normalize_isbn
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import stdnum.isbn
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import logging
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logger = logging.getLogger('meta.worldcat')
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base_url = 'http://www.worldcat.org'
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def get_ids(key, value):
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ids = []
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if key == 'isbn':
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url = '%s/search?qt=worldcat_org_bks&q=%s' % (base_url, value)
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html = read_url(url)
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matches = re.compile('/title.*?oclc/(\d+).*?"').findall(html)
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if matches:
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info = lookup(matches[0])
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ids.append(('oclc', matches[0]))
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for v in info.get('isbn', []):
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if v != value:
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ids.append(('isbn', v))
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elif key == 'oclc':
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info = lookup(value)
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if 'isbn' in info:
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for value in info['isbn']:
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ids.append(('isbn', value))
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if ids:
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logger.debug('get_ids %s %s', key, value)
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logger.debug('%s', ids)
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return ids
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def lookup(id):
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data = {
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'oclc': [id]
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}
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url = '%s/oclc/%s' % (base_url, id)
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html = read_url(url).decode('utf-8')
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doc = lxml.html.document_fromstring(html)
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for e in doc.xpath("//*[contains(@id, 'bibtip')]"):
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key = e.attrib['id'].replace('bibtip_', '')
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value = e.text_content()
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data[key] = value
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info = doc.xpath('//textarea[@id="util-em-note"]')
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if info:
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info = info[0].text
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info = dict([i.split(':', 1) for i in info.split('\n\n')[1].split('\n')])
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for key in info:
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k = key.lower()
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data[k] = info[key].strip()
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for key in ('id', 'instance', 'mediatype', 'reclist', 'shorttitle'):
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if key in data:
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del data[key]
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if 'isxn' in data:
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for isbn in data.pop('isxn').split(' '):
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isbn = normalize_isbn(isbn)
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if stdnum.isbn.is_valid(isbn):
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if not 'isbn' in data:
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data['isbn'] = []
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if isbn not in data['isbn']:
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data['isbn'].append(isbn)
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cover = doc.xpath('//img[@class="cover"]')
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if cover:
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data['cover'] = cover[0].attrib['src']
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if data['cover'].startswith('//'):
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data['cover'] = 'http:' + data['cover']
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cdata = read_url(data['cover'])
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if hashlib.sha1(cdata).hexdigest() == '70f16d3e077cdd47ef6b331001dbb1963677fa04':
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del data['cover']
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if 'author' in data:
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data['author'] = data['author'].split('; ')
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if 'title' in data:
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data['title'] = data['title'].replace(' : ', ': ')
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if 'publisher' in data:
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m = re.compile('(.+) : (.+), (\d{4})').findall(data['publisher'])
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if m:
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place, publisher, date = m[0]
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data['publisher'] = publisher
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data['date'] = date
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data['place'] = [place]
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logger.debug('lookup %s => %s', id, data.keys())
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return data
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info = lookup
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def find(title, author, year):
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return []
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