# HG changeset patch
# User Marcin Kuzminski <marcin@python-works.com>
# Date 2012-09-02 21:29:07
# Node ID a93c07ade43a42af9f09fb0705965f164c0be40f
# Parent  d03d51b6541e8b2d75dd4c34fc2a2767311ce6b4

Added huge diff protection for RSS/ATOM feeds.
It can really be a performance killer for huge diffs.

diff --git a/rhodecode/controllers/feed.py b/rhodecode/controllers/feed.py
--- a/rhodecode/controllers/feed.py
+++ b/rhodecode/controllers/feed.py
@@ -59,8 +59,14 @@ class FeedController(BaseRepoController)
 
     def __changes(self, cs):
         changes = []
-
-        diffprocessor = DiffProcessor(cs.diff())
+        _diff = cs.diff()
+        # we need to protect from parsing huge diffs here other way
+        # we can kill the server, 32*1024 chars is a reasonable limit
+        HUGE_DIFF = 32 * 1024
+        if len(_diff) > HUGE_DIFF:
+            changes = ['\n ' + _('Changeset was too big and was cut off...')]
+            return changes
+        diffprocessor = DiffProcessor(_diff)
         stats = diffprocessor.prepare(inline_diff=False)
         for st in stats:
             st.update({'added': st['stats'][0],