HTTPFile has 'content_type' property. It makes HTTPDownloadView proxy Content-Type header. Closes #116

CHANGELOG

@@ -12,6 +12,9 @@ future releases, check `milestones`_ and :doc:`/about/vision`.
 
 - Feature #113 - Introduced support of Python 3.5.
 
+- Feature #116 - ``HTTPFile`` has ``content_type`` property. It makes
+  ``HTTPDownloadView`` proxy ``Content-Type`` header from remote location.
+
 
 1.8 (2015-07-20)
 ----------------

demo/demoproject/http/tests.py

@@ -14,3 +14,13 @@ class SimpleURLTestCase(django.test.TestCase):
                                  content='Hello world!\n',
                                  basename='hello-world.txt',
                                  mime_type='text/plain')
+
+
+class AvatarTestCase(django.test.TestCase):
+    def test_download_response(self):
+        """HTTPDownloadView proxies Content-Type header."""
+        url = reverse('http:avatar_url')
+        response = self.client.get(url)
+        assert_download_response(self,
+                                 response,
+                                 mime_type='image/png')

demo/demoproject/http/urls.py

@@ -8,4 +8,7 @@ urlpatterns = patterns(
     url(r'^simple_url/$',
         views.simple_url,
         name='simple_url'),
+    url(r'^avatar_url/$',
+        views.avatar_url,
+        name='avatar_url'),
 )

demo/demoproject/http/views.py

@@ -10,4 +10,10 @@ class SimpleURLDownloadView(HTTPDownloadView):
                '/demo/demoproject/download/fixtures/hello-world.txt'
 
 
+class GithubAvatarDownloadView(HTTPDownloadView):
+    def get_url(self):
+        return 'https://avatars0.githubusercontent.com/u/235204'
+
+
 simple_url = SimpleURLDownloadView.as_view()
+avatar_url = GithubAvatarDownloadView.as_view()

django_downloadview/files.py

@@ -256,3 +256,8 @@ class HTTPFile(File):
 
         """
         return self.request.headers['Content-Length']
+
+    @property
+    def content_type(self):
+        """Return content type of the file (from original response)."""
+        return self.request.headers['Content-Type']