Merge pull request #135 from PythonBalkan/middleware

virogenesis · web-flow · commit 5331a3d69f5a · 2019-02-27T08:12:00.000+01:00
Middleware for fetching correct conference object based on year in domain
diff --git a/pyconbalkan/conference/middleware.py b/pyconbalkan/conference/middleware.py
@@ -0,0 +1,49 @@
+from urllib.parse import urljoin
+
+from django.conf import settings
+from django.http import HttpResponseRedirect
+
+from pyconbalkan.conference.models import Conference
+
+
+class ConferenceSelectionMiddleware:
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        """
+        Code to be executed for each request before
+        the view (and later middleware) are called.
+        Domain format : 2019.pyconbalkan.com
+
+        Every request will have an atribute `conference` in it
+        `conference` is the conference.models.Conference object for the
+        respective year fetched from it's domain.
+        """
+
+        domain = request.META.get('HTTP_HOST', 'localhost')
+        try:
+            domain_year = int(domain.split('.')[0])
+            q = {
+                "year": domain_year
+            }
+            if not request.user.is_superuser:
+                q['active'] = True
+
+            request.conference = Conference.objects.get(**q)
+        except (Conference.DoesNotExist, ValueError):
+            request.conference = Conference.objects.filter(active=True).first()
+
+        conference_domain = "{}.{}".format(
+            request.conference.year,
+            settings.META_SITE_DOMAIN
+        )
+
+        if settings.DEBUG is False and conference_domain != request.META['HTTP_HOST']:
+            return HttpResponseRedirect(
+                urljoin(
+                    "{}://{}".format(settings.META_SITE_PROTOCOL, conference_domain
+                ), "/")
+            )
+
+        return self.get_response(request)
diff --git a/pyconbalkan/core/context_processors.py b/pyconbalkan/core/context_processors.py
diff --git a/pyconbalkan/core/templates/base.html b/pyconbalkan/core/templates/base.html
@@ -7,7 +7,7 @@
 <!--[if !IE]><!--> <html lang="en"> <!--<![endif]-->
 <head {% meta_namespaces %} >
     {% include "meta/meta.html" %}
-    <title>{{ conference.event }} {{ conference.name }} {{ conference.year }}</title>
+    <title>{{ request.conference.event }} {{ request.conference.name }} {{ request.conference.year }}</title>
 
     <!-- Meta -->
     <meta charset="utf-8">
diff --git a/pyconbalkan/core/templates/includes/event_sidebar.html b/pyconbalkan/core/templates/includes/event_sidebar.html
@@ -1,34 +1,34 @@
 {% load static %}
 
 <aside class="event-sidebar">
-    <a href="/" class="logo" title="{{ conference.event }} {{ conference.name }} - {{ conference.city }} {{ conference.year }}"></a>
+    <a href="/" class="logo" title="{{ request.conference.event }} {{ request.conference.name }} - {{ request.conference.city }} {{ request.conference.year }}"></a>
     <hr class="line">
-    <h1>#{{ conference.number }}</h1>
+    <h1>#{{ request.conference.number }}</h1>
     <p class="event-sidebar__text">
-        {{ conference.address }}, {{ conference.city }}
+        {{ request.conference.address }}, {{ request.conference.city }}
     </p>
     <p class="event-sidebar__text">
         <i class="event-sidebar__icon far fa-calendar-alt"></i>
-        {{ conference.from_date }} - {{ conference.to_date }}
+        {{ request.conference.from_date }} - {{ request.conference.to_date }}
     </p>
     <p class="event-sidebar__text">
         <i class="event-sidebar__icon fas fa-users"></i>
-        {{ conference.max_attendees }} attendees
+        {{ request.conference.max_attendees }} attendees
     </p>
     <p class="event-sidebar__text">
         <i class="event-sidebar__icon fas fa-globe"></i>
-        {{ conference.get_type_display }}
+        {{ request.conference.get_type_display }}
     </p>
 
     <div class="event-button__wrapper">
-        {% if conference.tickets %}
-            <a class="button button--yellow mb-xs-20" href="{{ conference.tickets }}" target="_blank" role="button">Join Us!</a>
+        {% if request.conference.tickets %}
+            <a class="button button--yellow mb-xs-20" href="{{ request.conference.tickets }}" target="_blank" role="button">Join Us!</a>
         {% endif %}
     </div>
     <div class="social__links mb-xs-10">
-    {% if conference.facebook %}<a href="{{ conference.facebook }}" class="facebook" target="_blank"></a>{% endif %}
-	{% if conference.instagram %}<a href="{{ conference.instagram }}" class="instagram" target="_blank"></a>{% endif %}
-	{% if conference.twitter %}<a href="{{ conference.twitter }}" class="twitter" target="_blank"></a>{% endif %}
+    {% if request.conference.facebook %}<a href="{{ request.conference.facebook }}" class="facebook" target="_blank"></a>{% endif %}
+	{% if request.conference.instagram %}<a href="{{ request.conference.instagram }}" class="instagram" target="_blank"></a>{% endif %}
+	{% if request.conference.twitter %}<a href="{{ request.conference.twitter }}" class="twitter" target="_blank"></a>{% endif %}
     </div>
     <h3 class="supported-by">Supported by</h3>
     <a href="https://www.python.org/psf/"><div><img class="psf-logo" src="{% static 'img/pfs-logo.png' %}"></div></a>
diff --git a/pyconbalkan/core/templates/includes/header.html b/pyconbalkan/core/templates/includes/header.html
@@ -21,7 +21,7 @@
                 </div>
             </li>
             <li class="menu__list__item">
-            {% if conference.timetable_pdf %}
+            {% if request.conference.timetable_pdf %}
                 <a class="menu__list__link {% if request.path == '/timetable_pdf' %}active{% endif %}" href="/timetable_pdf" role="button">Timetable</a>
             {% else %}
                 <a class="menu__list__link {% if request.path == '/timetable' %}active{% endif %}" href="{% url 'timetable' %}" role="button">Timetable</a>
diff --git a/pyconbalkan/core/views.py b/pyconbalkan/core/views.py
@@ -1,12 +1,11 @@
 from django.shortcuts import render
 
-from pyconbalkan.conference.models import Conference, CountDown, MissionStatement
+from pyconbalkan.conference.models import CountDown, MissionStatement
 from pyconbalkan.speaker.models import Speaker
 from pyconbalkan.sponsors.models import Sponsor, SponsorshipLevel
 
 
 def home(request):
-    conference = Conference.objects.filter(active=True)
     count_down = CountDown.objects.filter(active=True)
     keynotes = Speaker.objects.filter(active=True, keynote=True).order_by('full_name')
 
@@ -27,6 +26,6 @@ def home(request):
         'partners': partners,
         'count_down': count_down.first() if count_down else None,
         'mission_statement': mission_statement.first() if mission_statement else None,
-        'meta': conference.first().as_meta(),
+        'meta': request.conference.as_meta(),
     }
     return render(request, 'home.html', context)
diff --git a/pyconbalkan/news/views.py b/pyconbalkan/news/views.py
@@ -4,10 +4,8 @@
 from meta.views import Meta
 from rest_framework import viewsets
 
-from pyconbalkan.conference.models import Conference
 from pyconbalkan.news.models import Post
 from pyconbalkan.news.serializers import PostSerializer
-from pyconbalkan.organizers.models import Volunteer
 
 
 class PostViewSet(viewsets.ModelViewSet):
diff --git a/pyconbalkan/organizers/views.py b/pyconbalkan/organizers/views.py
@@ -1,7 +1,6 @@
 from django.shortcuts import render, get_object_or_404
 from rest_framework import viewsets
 
-from pyconbalkan.conference.models import Conference
 from pyconbalkan.organizers.forms import VolunteerCreateForm
 from pyconbalkan.organizers.models import Volunteer
 from pyconbalkan.organizers.serializers import VolunteerSerializer
diff --git a/pyconbalkan/settings.py b/pyconbalkan/settings.py
@@ -67,13 +67,16 @@
 ]
 
 MIDDLEWARE = [
+    # Django middlewares
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    # Custom middlewares
+    'pyconbalkan.conference.middleware.ConferenceSelectionMiddleware',
 ]
 
 ROOT_URLCONF = 'pyconbalkan.urls'
@@ -89,7 +92,6 @@
             'context_processors': [
                 'django.template.context_processors.debug',
                 'django.template.context_processors.request',
-                'pyconbalkan.core.context_processors.conference',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
             ],
diff --git a/pyconbalkan/sponsors/templates/sponsoring.html b/pyconbalkan/sponsors/templates/sponsoring.html
@@ -61,8 +61,8 @@ <h2 class="success-message">
     </div>
 
     <h2 class="centered">
-        {% if conference.sponsor_email %}
-            For more information, contact us by email {{ conference.sponsor_email }}
+        {% if request.conference.sponsor_email %}
+            For more information, contact us by email {{ request.conference.sponsor_email }}
         {% endif %}
     </h2>
 
diff --git a/pyconbalkan/timetable/views.py b/pyconbalkan/timetable/views.py
@@ -2,7 +2,6 @@
 from django.shortcuts import render, redirect
 from rest_framework import viewsets
 
-from pyconbalkan.conference.models import Conference
 from pyconbalkan.timetable.models import Room, Slot, Timetable
 from pyconbalkan.timetable.serializers import TimetableSerializer
 
@@ -13,9 +12,8 @@ class TimetableViewSet(viewsets.ModelViewSet):
 
 
 def timetable_pdf_view(request):
-    conference = Conference.objects.filter(active=True)
-    if conference and conference.first().timetable_pdf:
-        return redirect(conference.first().timetable_pdf.url)
+    if request.conference and request.conference.timetable_pdf:
+        return redirect(request.conference.timetable_pdf.url)
     return redirect('/')
 
 
diff --git a/pyconbalkan/urls.py b/pyconbalkan/urls.py
@@ -2,9 +2,8 @@
 from django.contrib import admin
 from django.urls import path
 from django.views.generic import TemplateView
-from django.views.static import serve
-
 from markdownx import urls as markdownx
+
 from pyconbalkan.about.api_urls import router as about
 from pyconbalkan.about.views import about_view
 from pyconbalkan.cfp.api_urls import router as cfp
@@ -15,21 +14,19 @@
 from pyconbalkan.contact.api_urls import router as contact
 from pyconbalkan.contact.views import contact_view
 from pyconbalkan.core import routers, views
+from pyconbalkan.faq.api_urls import router as faq
+from pyconbalkan.faq.views import faq_view
 from pyconbalkan.info.views import info_view
 from pyconbalkan.news.api_urls import router as news
 from pyconbalkan.news.views import *
 from pyconbalkan.organizers.api_urls import router as organizers
 from pyconbalkan.organizers.views import (organizer_view, organizers_list,
                                           volunteers_createview)
-from pyconbalkan.settings import PDF_ROOT
 from pyconbalkan.speaker.api_urls import router as speaker
 from pyconbalkan.speaker.views import *
 from pyconbalkan.sponsors.api_urls import router as sponsors
-
-from pyconbalkan.timetable.views import timetable_view, timetable_pdf_view
-from pyconbalkan.faq.views import faq_view
-from pyconbalkan.faq.api_urls import router as faq
 from pyconbalkan.sponsors.views import sponsor_view, sponsoring_view, sponsors_view
+from pyconbalkan.timetable.views import timetable_view, timetable_pdf_view
 
 router = routers.DefaultRouter()
 router.extend(conference)
