Add GIF upload possibility

markdownx/forms.py

@@ -33,6 +33,9 @@ class ImageForm(forms.Form):
     # processed a text file rather than image.
     _SVG_TYPE = 'image/svg+xml'
 
+    # Skip processing for these types
+    _SKIP_PROCESS = ('image/gif', _SVG_TYPE)
+
     def save(self, commit=True):
         """
         Saves the uploaded image in the designated location.
@@ -56,10 +59,10 @@ def save(self, commit=True):
         image_extension = content_type.split('/')[-1].upper()
         image_size = getattr(image, '_size')
 
-        if content_type.lower() != self._SVG_TYPE:
+        if content_type.lower() not in self._SKIP_PROCESS:
             # Processing the raster graphic image.
             # Note that vector graphics in SVG format
-            # do not require additional processing and
+            # or GIF images do not require additional processing and
             # may be stored as uploaded.
             image = self._process_raster(image, image_extension)
             image_size = image.tell()

markdownx/settings.py

@@ -8,7 +8,7 @@
 # ------------------------------------------------------------------
 
 FIFTY_MEGABYTES = 50 * 1024 * 1024
-VALID_CONTENT_TYPES = 'image/jpeg', 'image/png', 'image/svg+xml'
+VALID_CONTENT_TYPES = 'image/jpeg', 'image/png', 'image/svg+xml', 'image/gif'
 NINETY_DPI = 90
 IM_WIDTH = 500
 IM_HEIGHT = 500