FEAT: Add oembed for assets (#393)

* FEAT: Add oembed for assets

Don't see the worth in doing supplier currently...we don't OEmbed Org/Venue etc after all...

* FIX Copy paste error ;D

* Fix embeds not actually working for unauthenticated users

This is why I should have written tests...

assets/views.py

@@ -1,5 +1,6 @@
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.http import JsonResponse
+from django.http import HttpResponse
 from django.views import generic
 from django.views.decorators.csrf import csrf_exempt
 from django.utils.decorators import method_decorator
@@ -9,6 +10,8 @@ from django.shortcuts import get_object_or_404
 from assets import models, forms
 from RIGS import versioning
 
+import simplejson
+
 
 @method_decorator(csrf_exempt, name='dispatch')
 class AssetList(LoginRequiredMixin, generic.ListView):
@@ -149,6 +152,28 @@ class AssetDuplicate(DuplicateMixin, AssetIDUrlMixin, AssetCreate):
         return context
 
 
+class AssetOembed(generic.View):
+    model = models.Asset
+
+    def get(self, request, pk=None):
+        embed_url = reverse('asset_embed', args=[pk])
+        full_url = "{0}://{1}{2}".format(request.scheme, request.META['HTTP_HOST'], embed_url)
+
+        data = {
+            'html': '<iframe src="{0}" frameborder="0" width="100%" height="250"></iframe>'.format(full_url),
+            'version': '1.0',
+            'type': 'rich',
+            'height': '250'
+        }
+
+        json = simplejson.JSONEncoderForHTML().encode(data)
+        return HttpResponse(json, content_type="application/json")
+
+
+class AssetEmbed(AssetDetail):
+    template_name = 'asset_embed.html'
+
+
 class SupplierList(generic.ListView):
     model = models.Supplier
     template_name = 'supplier_list.html'