From 12b4bc1fbdc0b9a2a999b58f08a636255e1b680a Mon Sep 17 00:00:00 2001
From: j <j@mailb.org>
Date: Mon, 14 Aug 2023 13:56:22 +0200
Subject: [PATCH] use sitemap

---
 app/views.py | 52 +++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 45 insertions(+), 7 deletions(-)

diff --git a/app/views.py b/app/views.py
index ac138aa..0b59a82 100644
--- a/app/views.py
+++ b/app/views.py
@@ -1,3 +1,6 @@
+import xml.etree.ElementTree as ET
+
+from django.utils.timezone import datetime, timedelta
 from django.shortcuts import render
 from django.http import HttpResponse
 
@@ -5,17 +8,52 @@ from django.http import HttpResponse
 def robots_txt(request):
     txt = '''User-agent: *
 Disallow: 
-'''
-    return HttpResponse(txt, 'text/plain')
-
-    txt = '''User-agent: *
-Disallow: 
 Sitemap: {}
 '''.format(request.build_absolute_uri('/sitemap.xml'))
     return HttpResponse(txt, 'text/plain')
 
 
 def sitemap_xml(request):
-    sitemap = ''
-    return HttpResponse(sitemap, 'application/xml')
+    now = datetime.now()
+    from .item.models import Item
+    urlset = ET.Element('urlset')
+    urlset.attrib['xmlns'] = "http://www.sitemaps.org/schemas/sitemap/0.9"
+    urlset.attrib['xmlns:xsi'] = "http://www.w3.org/2001/XMLSchema-instance"
+    urlset.attrib['xsi:schemaLocation'] = "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"
+
+    url = ET.SubElement(urlset, "url")
+    loc = ET.SubElement(url, "loc")
+    loc.text = request.build_absolute_uri('/')
+    lastmod = ET.SubElement(url, "lastmod")
+    lastmod.text = now.strftime("%Y-%m-%d")
+    changefreq = ET.SubElement(url, "changefreq")
+    changefreq.text = 'hourly'
+    priority = ET.SubElement(url, "priority")
+    priority.text = '1.0'
+
+    url = ET.SubElement(urlset, "url")
+    loc = ET.SubElement(url, "loc")
+    loc.text = request.build_absolute_uri('/archive/')
+    lastmod = ET.SubElement(url, "lastmod")
+    lastmod.text = now.strftime("%Y-%m-%d")
+    changefreq = ET.SubElement(url, "changefreq")
+    changefreq.text = 'weekly'
+    priority = ET.SubElement(url, "priority")
+    priority.text = '1.0'
+
+    for item in Item.objects.exclude(published=None).exclude(published__gt=now).order_by('-published'):
+        url = ET.SubElement(urlset, "url")
+        loc = ET.SubElement(url, "loc")
+        loc.text = request.build_absolute_uri(item.get_absolute_url())
+        # This date should be in W3C Datetime format, can be %Y-%m-%d
+        lastmod = ET.SubElement(url, "lastmod")
+        lastmod.text = item.modified.strftime("%Y-%m-%d")
+        # always, hourly, daily, weekly, monthly, yearly, never
+        changefreq = ET.SubElement(url, "changefreq")
+        changefreq.text = 'daily'
+        # priority of page on site values 0.1 - 1.0
+        priority = ET.SubElement(url, "priority")
+        priority.text = '0.9'
+    data = b'<?xml version="1.0" encoding="UTF-8"?>\n' + ET.tostring(urlset)
+    return HttpResponse(data, 'application/xml')