Code source de django.contrib.sitemaps

from django.apps import apps as django_apps
from django.conf import settings
from django.core import paginator
from django.core.exceptions import ImproperlyConfigured
from django.urls import NoReverseMatch, reverse
from django.utils import translation
from django.utils.six.moves.urllib.parse import urlencode
from django.utils.six.moves.urllib.request import urlopen


class SitemapNotFound(Exception):

[docs]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 urls.reverse(). """ sitemap_full_url = _get_sitemap_full_url(sitemap_url) params = urlencode({'sitemap': sitemap_full_url}) urlopen('%s?%s' % (ping_url, params))
def _get_sitemap_full_url(sitemap_url): if not django_apps.is_installed('django.contrib.sites'): raise ImproperlyConfigured("ping_google requires django.contrib.sites, which isn't installed.") if sitemap_url is None: try: # First, try to get the "index" sitemap URL. sitemap_url = reverse('django.contrib.sitemaps.views.index') except NoReverseMatch: try: # Next, try for the "global" sitemap URL. sitemap_url = reverse('django.contrib.sitemaps.views.sitemap') except 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.") Site = django_apps.get_model('sites.Site') current_site = Site.objects.get_current() return 'http://%s%s' % (current_site.domain, sitemap_url)
[docs]class Sitemap(object): # This limit is defined by Google. See the index documentation at # limit = 50000 # If protocol is None, the URLs in the sitemap will use the protocol # with which the sitemap was requested. protocol = None def __get(self, name, obj, default=None): try: attr = getattr(self, name) except AttributeError: return default if callable(attr): return attr(obj) return attr
[docs] def items(self): return []
[docs] def location(self, obj): return obj.get_absolute_url()
@property def paginator(self): return paginator.Paginator(self.items(), self.limit) def get_urls(self, page=1, site=None, protocol=None): # Determine protocol if self.protocol is not None: protocol = self.protocol if protocol is None: protocol = 'http' # Determine domain if site is None: if django_apps.is_installed('django.contrib.sites'): Site = django_apps.get_model('sites.Site') try: site = Site.objects.get_current() except Site.DoesNotExist: pass if site is None: raise ImproperlyConfigured( "To use sitemaps, either enable the sites framework or pass " "a Site/RequestSite object in your view." ) domain = site.domain if getattr(self, 'i18n', False): urls = [] current_lang_code = translation.get_language() for lang_code, lang_name in settings.LANGUAGES: translation.activate(lang_code) urls += self._urls(page, protocol, domain) translation.activate(current_lang_code) else: urls = self._urls(page, protocol, domain) return urls def _urls(self, page, protocol, domain): urls = [] latest_lastmod = None all_items_lastmod = True # track if all items have a lastmod for item in loc = "%s://%s%s" % (protocol, domain, self.__get('location', item)) priority = self.__get('priority', item) lastmod = self.__get('lastmod', item) if all_items_lastmod: all_items_lastmod = lastmod is not None if (all_items_lastmod and (latest_lastmod is None or lastmod > latest_lastmod)): latest_lastmod = lastmod url_info = { 'item': item, 'location': loc, 'lastmod': lastmod, 'changefreq': self.__get('changefreq', item), 'priority': str(priority if priority is not None else ''), } urls.append(url_info) if all_items_lastmod and latest_lastmod: self.latest_lastmod = latest_lastmod return urls
[docs]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') 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
default_app_config = 'django.contrib.sitemaps.apps.SiteMapsConfig'
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