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venv/Lib/site-packages/django/contrib/sitemaps/views.py

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+import datetime
+from functools import wraps
+
+from django.contrib.sites.shortcuts import get_current_site
+from django.core.paginator import EmptyPage, PageNotAnInteger
+from django.http import Http404
+from django.template.response import TemplateResponse
+from django.urls import reverse
+from django.utils import timezone
+from django.utils.http import http_date
+
+
+def x_robots_tag(func):
+    @wraps(func)
+    def inner(request, *args, **kwargs):
+        response = func(request, *args, **kwargs)
+        response.headers['X-Robots-Tag'] = 'noindex, noodp, noarchive'
+        return response
+    return inner
+
+
+@x_robots_tag
+def index(request, sitemaps,
+          template_name='sitemap_index.xml', content_type='application/xml',
+          sitemap_url_name='django.contrib.sitemaps.views.sitemap'):
+
+    req_protocol = request.scheme
+    req_site = get_current_site(request)
+
+    sites = []  # all sections' sitemap URLs
+    for section, site in sitemaps.items():
+        # For each section label, add links of all pages of its sitemap
+        # (usually generated by the `sitemap` view).
+        if callable(site):
+            site = site()
+        protocol = req_protocol if site.protocol is None else site.protocol
+        sitemap_url = reverse(sitemap_url_name, kwargs={'section': section})
+        absolute_url = '%s://%s%s' % (protocol, req_site.domain, sitemap_url)
+        sites.append(absolute_url)
+        # Add links to all pages of the sitemap.
+        for page in range(2, site.paginator.num_pages + 1):
+            sites.append('%s?p=%s' % (absolute_url, page))
+
+    return TemplateResponse(request, template_name, {'sitemaps': sites},
+                            content_type=content_type)
+
+
+@x_robots_tag
+def sitemap(request, sitemaps, section=None,
+            template_name='sitemap.xml', content_type='application/xml'):
+
+    req_protocol = request.scheme
+    req_site = get_current_site(request)
+
+    if section is not None:
+        if section not in sitemaps:
+            raise Http404("No sitemap available for section: %r" % section)
+        maps = [sitemaps[section]]
+    else:
+        maps = sitemaps.values()
+    page = request.GET.get("p", 1)
+
+    lastmod = None
+    all_sites_lastmod = True
+    urls = []
+    for site in maps:
+        try:
+            if callable(site):
+                site = site()
+            urls.extend(site.get_urls(page=page, site=req_site,
+                                      protocol=req_protocol))
+            if all_sites_lastmod:
+                site_lastmod = getattr(site, 'latest_lastmod', None)
+                if site_lastmod is not None:
+                    if not isinstance(site_lastmod, datetime.datetime):
+                        site_lastmod = datetime.datetime.combine(site_lastmod, datetime.time.min)
+                    if timezone.is_naive(site_lastmod):
+                        site_lastmod = timezone.make_aware(site_lastmod, timezone.utc)
+                    lastmod = site_lastmod if lastmod is None else max(lastmod, site_lastmod)
+                else:
+                    all_sites_lastmod = False
+        except EmptyPage:
+            raise Http404("Page %s empty" % page)
+        except PageNotAnInteger:
+            raise Http404("No page '%s'" % page)
+    response = TemplateResponse(request, template_name, {'urlset': urls},
+                                content_type=content_type)
+    if all_sites_lastmod and lastmod is not None:
+        # if lastmod is defined for all sites, set header so as
+        # ConditionalGetMiddleware is able to send 304 NOT MODIFIED
+        response.headers['Last-Modified'] = http_date(lastmod.timestamp())
+    return response