136 lines
4.7 KiB
Python
136 lines
4.7 KiB
Python
from django.contrib.sites.models import Site
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from django.core import urlresolvers, paginator
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from django.core.exceptions import ImproperlyConfigured
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from django.utils.six.moves.urllib.parse import urlencode
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from django.utils.six.moves.urllib.request import urlopen
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PING_URL = "http://www.google.com/webmasters/tools/ping"
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class SitemapNotFound(Exception):
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pass
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def ping_google(sitemap_url=None, ping_url=PING_URL):
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"""
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Alerts Google that the sitemap for the current site has been updated.
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If sitemap_url is provided, it should be an absolute path to the sitemap
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for this site -- e.g., '/sitemap.xml'. If sitemap_url is not provided, this
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function will attempt to deduce it by using urlresolvers.reverse().
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"""
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if sitemap_url is None:
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try:
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# First, try to get the "index" sitemap URL.
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sitemap_url = urlresolvers.reverse('django.contrib.sitemaps.views.index')
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except urlresolvers.NoReverseMatch:
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try:
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# Next, try for the "global" sitemap URL.
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sitemap_url = urlresolvers.reverse('django.contrib.sitemaps.views.sitemap')
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except urlresolvers.NoReverseMatch:
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pass
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if sitemap_url is None:
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raise SitemapNotFound("You didn't provide a sitemap_url, and the sitemap URL couldn't be auto-detected.")
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current_site = Site.objects.get_current()
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url = "http://%s%s" % (current_site.domain, sitemap_url)
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params = urlencode({'sitemap': url})
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urlopen("%s?%s" % (ping_url, params))
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class Sitemap(object):
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# This limit is defined by Google. See the index documentation at
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# http://sitemaps.org/protocol.php#index.
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limit = 50000
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# If protocol is None, the URLs in the sitemap will use the protocol
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# with which the sitemap was requested.
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protocol = None
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def __get(self, name, obj, default=None):
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try:
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attr = getattr(self, name)
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except AttributeError:
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return default
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if callable(attr):
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return attr(obj)
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return attr
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def items(self):
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return []
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def location(self, obj):
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return obj.get_absolute_url()
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def _get_paginator(self):
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return paginator.Paginator(self.items(), self.limit)
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paginator = property(_get_paginator)
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def get_urls(self, page=1, site=None, protocol=None):
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# Determine protocol
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if self.protocol is not None:
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protocol = self.protocol
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if protocol is None:
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protocol = 'http'
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# Determine domain
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if site is None:
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if Site._meta.installed:
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try:
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site = Site.objects.get_current()
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except Site.DoesNotExist:
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pass
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if site is None:
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raise ImproperlyConfigured("To use sitemaps, either enable the sites framework or pass a Site/RequestSite object in your view.")
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domain = site.domain
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urls = []
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latest_lastmod = None
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all_items_lastmod = True # track if all items have a lastmod
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for item in self.paginator.page(page).object_list:
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loc = "%s://%s%s" % (protocol, domain, self.__get('location', item))
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priority = self.__get('priority', item, None)
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lastmod = self.__get('lastmod', item, None)
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if all_items_lastmod:
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all_items_lastmod = lastmod is not None
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if (all_items_lastmod and
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(latest_lastmod is None or lastmod > latest_lastmod)):
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latest_lastmod = lastmod
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url_info = {
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'item': item,
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'location': loc,
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'lastmod': lastmod,
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'changefreq': self.__get('changefreq', item, None),
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'priority': str(priority if priority is not None else ''),
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}
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urls.append(url_info)
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if all_items_lastmod and latest_lastmod:
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self.latest_lastmod = latest_lastmod
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return urls
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class FlatPageSitemap(Sitemap):
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def items(self):
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current_site = Site.objects.get_current()
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return current_site.flatpage_set.filter(registration_required=False)
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class GenericSitemap(Sitemap):
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priority = None
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changefreq = None
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def __init__(self, info_dict, priority=None, changefreq=None):
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self.queryset = info_dict['queryset']
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self.date_field = info_dict.get('date_field', None)
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self.priority = priority
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self.changefreq = changefreq
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def items(self):
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# Make sure to return a clone; we don't want premature evaluation.
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return self.queryset.filter()
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def lastmod(self, item):
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if self.date_field is not None:
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return getattr(item, self.date_field)
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return None
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