Added multi-domain capabilities

src/pretix/multidomain/urlreverse.py

@@ -0,0 +1,44 @@
+from urllib.parse import urljoin, urlsplit
+
+from django.conf import settings
+from django.core.urlresolvers import reverse
+
+
+def get_domain(event):
+    c = event.organizer.get_cache()
+    domain = c.get('domain')
+    if domain is None:
+        domains = event.organizer.domains.all()
+        domain = domains[0].domainname if domains else None
+        c.set('domain', domain or 'none')
+    elif domain == 'none':
+        return None
+    return domain
+
+
+def eventreverse(event, name, kwargs=None):
+    """
+    Works similar to django.core.urlresolvers.reverse but takes into account that some
+    organizers might have their own (sub)domain instead of a subpath.
+    """
+    kwargs = kwargs or {}
+    kwargs['event'] = event.slug
+    domain = get_domain(event)
+    if domain:
+        if 'organizer' in kwargs:
+            del kwargs['organizer']
+        path = reverse(name, kwargs=kwargs)
+        siteurlsplit = urlsplit(settings.SITE_URL)
+        if siteurlsplit.port and siteurlsplit.port not in (80, 443):
+            domain = '%s:%d' % (domain, siteurlsplit.port)
+        return urljoin('%s://%s' % (siteurlsplit.scheme, domain), path)
+
+    kwargs['organizer'] = event.organizer.slug
+    return reverse(name, kwargs=kwargs)
+
+
+def build_absolute_uri(event, urlname, kwargs=None):
+    reversedurl = eventreverse(event, urlname, kwargs)
+    if '://' in reversedurl:
+        return reversedurl
+    return urljoin(settings.SITE_URL, reversedurl)