Add ical download/subscription for important dates for meetings,

similar to the existing meeting view
 - Legacy-Id: 18419

ietf/meeting/tests_views.py

@@ -585,6 +585,16 @@ class MeetingTests(TestCase):
         post_date =  meeting.importantdate_set.get(name=idn).date
         self.assertEqual(pre_date, post_date+datetime.timedelta(days=1))
 
+    def test_important_dates_ical(self):
+        meeting = MeetingFactory(type_id='ietf')
+        meeting.show_important_dates = True
+        meeting.save()
+        populate_important_dates(meeting)
+        url = urlreverse('ietf.meeting.views.important_dates', kwargs={'num': meeting.number, 'output_format': 'ics'})
+        r = self.client.get(url)
+        for d in meeting.importantdate_set.all():
+            self.assertContains(r, d.date.isoformat())
+
     def test_group_ical(self):
         meeting = make_meeting_test_data()
         s1 = Session.objects.filter(meeting=meeting, group__acronym="mars").first()

ietf/meeting/urls.py

@@ -104,7 +104,7 @@ type_ietf_only_patterns_id_optional = [
     url(r'^proceedings/overview/$', views.proceedings_overview),
     url(r'^proceedings/progress-report/$', views.proceedings_progress_report),
     url(r'^important-dates/$', views.important_dates),
-
+    url(r'^important-dates.(?P<output_format>ics)$', views.important_dates),
 ]
 
 urlpatterns = [

ietf/meeting/views.py

@@ -3582,7 +3582,7 @@ def api_upload_bluesheet(request):
     return HttpResponse("Done", status=200, content_type='text/plain')
 
 
-def important_dates(request, num=None):
+def important_dates(request, num=None, output_format=None):
     assert num is None or num.isdigit()
     preview_roles = ['Area Director', 'Secretariat', 'IETF Chair', 'IAD', ]
 
@@ -3602,8 +3602,24 @@ def important_dates(request, num=None):
             or (user and user.is_authenticated and has_role(user, preview_roles))):
             meetings.append(future_meeting)
 
-    context={'meetings':meetings}
-    return render(request, 'meeting/important-dates.html', context)
+    if output_format == 'ics':
+        for m in meetings:
+            m.cached_updated = m.updated()
+            m.important_dates = m.importantdate_set.prefetch_related("name")
+            for d in m.important_dates:
+                d.midnight_cutoff = "UTC 23:59" in d.name.name
+
+        ics = render_to_string('meeting/important_dates.ics', {
+            'meetings': meetings,
+        }, request=request)
+        # icalendar response file should have '\r\n' line endings per RFC5545
+        response = HttpResponse(re.sub("\r(?!\n)|(?<!\r)\n", "\r\n", ics), content_type='text/calendar')
+        response['Content-Disposition'] = 'attachment; filename="important-dates.ics"'
+        return response
+
+    return render(request, 'meeting/important-dates.html', {
+        'meetings': meetings
+    })
 
 TimeSlotTypeForm = modelform_factory(TimeSlot, fields=('type',))
 

ietf/templates/meeting/important-dates.html

@@ -4,13 +4,18 @@
 
 {% load ietf_filters static %}
 
-{% block title %}IETF {{meetings.0.number}} : Important Dates{% endblock %}
+{% block title %}IETF {{meetings.0.number}}: Important Dates{% endblock %}
 
 {% block content %}
   {% origin %}
-  <h2>Important Dates</h2>
+  <h1>Important Dates</h1>
+
+  <p>iCalendar: <a href="webcal://{{request.get_host}}{% url 'ietf.meeting.views.important_dates' output_format='ics' %}">webcal subscription</a>
+    &middot; <a href="{% url 'ietf.meeting.views.important_dates' output_format='ics' %}">download</a>
+  </p>
+  
 {% for meeting in meetings %}
-  <h3>IETF {{meeting.number}} : {{ meeting.date}}, {{meeting.city}}, {{meeting.country}}</h3>
+  <h3>IETF {{meeting.number}}: {{ meeting.date}}, {{meeting.city}}, {{meeting.country}}</h3>
   <ul>
   {% with first=forloop.first %}
     {% for d in meeting.importantdate_set.all %}

ietf/templates/meeting/important_dates.ics

@@ -0,0 +1,26 @@
+{% load humanize %}{% autoescape off %}{% load ietf_filters %}BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:PUBLISH
+PRODID:-//IETF//datatracker.ietf.org ical importantdates//EN
+{% for meeting in meetings %}{% for d in meeting.important_dates %}BEGIN:VEVENT
+UID:ietf-{{ meeting.number }}-{{ d.name_id }}-{{ d.date.isoformat }}
+SUMMARY:IETF {{ meeting.number }}: {{ d.name.name }}
+CLASS:PUBLIC
+DTSTART{% if not d.midnight_cutoff %};VALUE=DATE{% endif %}:{{ d.date|date:"Ymd" }}{% if d.midnight_cutoff %}235900Z{% endif %}
+DTSTAMP:{{ meeting.cached_updated|date:"Ymd" }}T{{ meeting.cached_updated|date:"His" }}Z
+DESCRIPTION:{{ d.name.desc }} {% if first and d.name.slug == 'openreg' or first and d.name.slug == 'earlybird' %}
+Register here: https://www.ietf.org/how/meetings/register/{% endif %}{% if d.name.slug == 'opensched' %}
+To request a Working Group session, use the IETF Meeting Session Request Tool:
+{{ request.scheme }}://{{ request.get_host}}{% url 'ietf.secr.sreq.views.main' %}
+If you are working on a BoF request, it is highly recommended to tell the IESG
+now by sending an email to iesg@ietf.org to get advance help with the request.{% endif %}{% if d.name.slug == 'cutoffwgreq' %}
+To request a Working Group session, use the IETF Meeting Session Request Tool:
+{{ request.scheme }}://{{ request.get_host }}{% url 'ietf.secr.sreq.views.main' %}{% endif %}{% if d.name.slug == 'cutoffbofreq' %}
+To request a BOF, please see instructions on Requesting a BOF:
+https://www.ietf.org/how/bofs/bof-procedures/{% endif %}{% if d.name.slug == 'idcutoff' %}
+Upload using the ID Submission Tool:
+{{ request.scheme }}://{{ request.get_host }}{% url 'ietf.submit.views.upload_submission' %}{% endif %}{% if d.name.slug == 'draftwgagenda' or d.name.slug == 'revwgagenda' or d.name.slug == 'procsub' or d.name.slug == 'revslug' %}
+Upload using the Meeting Materials Management Tool:
+{{ request.scheme }}://{{ request.get_host }}{% url 'ietf.meeting.views.materials' num=meeting.number %}{% endif %}
+END:VEVENT
+{% endfor %}{% endfor %}END:VCALENDAR{% endautoescape %}