Issue 2120 - Add support for animations.

filters/inline_file.py

Index: filters/inline_file.py
diff --git a/filters/inline_file.py b/filters/inline_file.py
new file mode 100644
index 0000000000000000000000000000000000000000..76fc5e3aae1423cd4ab9b14a1448197ce7529198
--- /dev/null
+++ b/filters/inline_file.py
@@ -0,0 +1,43 @@
+# This file is part of the Adblock Plus website,
+# Copyright (C) 2006-2015 Eyeo GmbH
+#
+# Adblock Plus is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# Adblock Plus is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+
+import base64
+import urllib
+from mimetypes import MimeTypes
+
+from jinja2 import contextfilter
+
+
+mime = MimeTypes()
+
+@contextfilter
+def inline_file(context, path, mime_type=None):
+  if mime_type is None:
+    mime_type = mime.guess_type(path)[0]
+    if mime_type is None:
+      raise ValueError("Unknown mime type for file '%s', please specify." % path)
+
+  source = context["source"]
+  for locale in (context["locale"], "en"):
+    if source.has_localizable_file(locale, path):
+      file_contents = source.read_localizable_file(locale, path)
+      break
+  else:
+    file_contents = source.read_static(path)
+
+  return "data:%s;base64,%s" % (
+    mime_type,
+    urllib.quote(base64.b64encode(file_contents))
+  )