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