Stops a potential DoS by limiting maximum count to

2016 or less. This way, you're not having memory exhausted by someone trying to load information on all of your blocks.

Abe/abe.py

@@ -416,6 +416,8 @@ def handle_chain(abe, page):
         body += abe.search_form(page)
 
         count = get_int_param(page, 'count') or 20
+        if count >= 2017:
+            count = 20
         hi = get_int_param(page, 'hi')
         orig_hi = hi