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Merge pull request #357 from asciimoo/google_engine
[enh] google engine : parse map links and more
This commit is contained in:
Adam Tauber
commit
f2cbefeb54
@ -8,6 +8,7 @@
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# @stable no (HTML can change)
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# @parse url, title, content, suggestion
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import re
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from urllib import urlencode
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from urlparse import urlparse, parse_qsl
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from lxml import html
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@ -78,15 +79,22 @@ country_to_hostname = {
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'TW': 'www.google.com.tw' # Taiwan
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}
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# osm
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url_map = 'https://www.openstreetmap.org/'\
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+ '?lat={latitude}&lon={longitude}&zoom={zoom}&layers=M'
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# search-url
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search_path = '/search'
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maps_path = '/maps/'
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redirect_path = '/url'
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images_path = '/images'
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search_url = ('https://{hostname}' +
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search_path +
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'?{query}&start={offset}&gbv=1')
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# other URLs
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map_hostname_start = 'maps.google.'
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maps_path = '/maps'
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redirect_path = '/url'
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images_path = '/images'
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# specific xpath variables
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results_xpath = '//li[@class="g"]'
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url_xpath = './/h3/a/@href'
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@ -95,10 +103,29 @@ content_xpath = './/span[@class="st"]'
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content_misc_xpath = './/div[@class="f slp"]'
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suggestion_xpath = '//p[@class="_Bmc"]'
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# map : detail location
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map_address_xpath = './/div[@class="s"]//table//td[2]/span/text()'
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map_phone_xpath = './/div[@class="s"]//table//td[2]/span/span'
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map_website_url_xpath = 'h3[2]/a/@href'
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map_website_title_xpath = 'h3[2]'
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# map : near the location
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map_near = 'table[@class="ts"]//tr'
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map_near_title = './/h4'
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map_near_url = './/h4/a/@href'
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map_near_phone = './/span[@class="nobr"]'
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# images
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images_xpath = './/div/a'
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image_url_xpath = './@href'
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image_img_src_xpath = './img/@src'
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# property names
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# FIXME : no translation
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property_address = "Address"
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property_phone = "Phone number"
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# cookies
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pref_cookie = ''
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nid_cookie = {}
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@ -122,6 +149,11 @@ def get_google_nid_cookie(google_hostname):
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# remove google-specific tracking-url
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def parse_url(url_string, google_hostname):
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# sanity check
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if url_string is None:
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return url_string
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# normal case
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parsed_url = urlparse(url_string)
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if (parsed_url.netloc in [google_hostname, '']
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and parsed_url.path == redirect_path):
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@ -151,7 +183,7 @@ def request(query, params):
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if len(language_array) == 2:
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country = language_array[1]
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else:
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country = ' '
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country = 'US'
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language = language_array[0] + ',' + language_array[0] + '-' + country
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if use_locale_domain:
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@ -196,21 +228,32 @@ def response(resp):
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try:
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url = parse_url(extract_url(result.xpath(url_xpath), google_url), google_hostname)
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parsed_url = urlparse(url, google_hostname)
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if (parsed_url.netloc == google_hostname
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and (parsed_url.path == search_path
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or parsed_url.path.startswith(maps_path))):
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# remove the link to google news and google maps
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# FIXME : sometimes the URL is https://maps.google.*/maps
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# no consequence, the result trigger an exception after which is ignored
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continue
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# map result
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if ((parsed_url.netloc == google_hostname and parsed_url.path.startswith(maps_path))
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or (parsed_url.netloc.startswith(map_hostname_start))):
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x = result.xpath(map_near)
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if len(x) > 0:
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# map : near the location
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results = results + parse_map_near(parsed_url, x, google_hostname)
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else:
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# map : detail about a location
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results = results + parse_map_detail(parsed_url, result, google_hostname)
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# google news
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elif (parsed_url.netloc == google_hostname
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and parsed_url.path == search_path):
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# skipping news results
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pass
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# images result
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if (parsed_url.netloc == google_hostname
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and parsed_url.path == images_path):
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elif (parsed_url.netloc == google_hostname
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and parsed_url.path == images_path):
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# only thumbnail image provided,
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# so skipping image results
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# results = results + parse_images(result, google_hostname)
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pass
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else:
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# normal result
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content = extract_text_from_dom(result, content_xpath)
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@ -222,8 +265,9 @@ def response(resp):
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# append result
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results.append({'url': url,
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'title': title,
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'content': content})
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except Exception:
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'content': content
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})
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except:
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continue
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# parse suggestion
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@ -246,6 +290,77 @@ def parse_images(result, google_hostname):
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'title': '',
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'content': '',
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'img_src': img_src,
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'template': 'images.html'})
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'template': 'images.html'
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})
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return results
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def parse_map_near(parsed_url, x, google_hostname):
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results = []
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for result in x:
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title = extract_text_from_dom(result, map_near_title)
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url = parse_url(extract_text_from_dom(result, map_near_url), google_hostname)
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attributes = []
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phone = extract_text_from_dom(result, map_near_phone)
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add_attributes(attributes, property_phone, phone, 'tel:' + phone)
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results.append({'title': title,
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'url': url,
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'content': attributes_to_html(attributes)
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})
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return results
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def parse_map_detail(parsed_url, result, google_hostname):
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results = []
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# try to parse the geoloc
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m = re.search('@([0-9\.]+),([0-9\.]+),([0-9]+)', parsed_url.path)
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if m is None:
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m = re.search('ll\=([0-9\.]+),([0-9\.]+)\&z\=([0-9]+)', parsed_url.query)
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if m is not None:
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# geoloc found (ignored)
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lon = float(m.group(2)) # noqa
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lat = float(m.group(1)) # noqa
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zoom = int(m.group(3)) # noqa
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# attributes
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attributes = []
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address = extract_text_from_dom(result, map_address_xpath)
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phone = extract_text_from_dom(result, map_phone_xpath)
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add_attributes(attributes, property_address, address, 'geo:' + str(lat) + ',' + str(lon))
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add_attributes(attributes, property_phone, phone, 'tel:' + phone)
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# title / content / url
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website_title = extract_text_from_dom(result, map_website_title_xpath)
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content = extract_text_from_dom(result, content_xpath)
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website_url = parse_url(extract_text_from_dom(result, map_website_url_xpath), google_hostname)
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# add a result if there is a website
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if website_url is not None:
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results.append({'title': website_title,
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'content': (content + '<br />' if content is not None else '')
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+ attributes_to_html(attributes),
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'url': website_url
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})
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return results
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def add_attributes(attributes, name, value, url):
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if value is not None and len(value) > 0:
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attributes.append({'label': name, 'value': value, 'url': url})
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def attributes_to_html(attributes):
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retval = '<table class="table table-striped">'
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for a in attributes:
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value = a.get('value')
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if 'url' in a:
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value = '<a href="' + a.get('url') + '">' + value + '</a>'
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retval = retval + '<tr><th>' + a.get('label') + '</th><td>' + value + '</td></tr>'
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retval = retval + '</table>'
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return retval
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