Added COMMENTS_TIMEOUT setting to configure form timeout

@@ -17,6 +17,7 @@ from django.utils.translation import ungettext, ugettext, ugettext_lazy as _
 from django_comments.models import Comment
 
 COMMENT_MAX_LENGTH = getattr(settings, 'COMMENT_MAX_LENGTH', 3000)
+DEFAULT_COMMENTS_TIMEOUT = getattr(settings, 'COMMENTS_TIMEOUT', (2 * 60 * 60))  # 2h
 
 
 class CommentSecurityForm(forms.Form):
@@ -57,9 +58,9 @@ class CommentSecurityForm(forms.Form):
         return actual_hash
 
     def clean_timestamp(self):
-        """Make sure the timestamp isn't too far (> 2 hours) in the past."""
+        """Make sure the timestamp isn't too far (default is > 2 hours) in the past."""
         ts = self.cleaned_data["timestamp"]
-        if time.time() - ts > (2 * 60 * 60):
+        if time.time() - ts > DEFAULT_COMMENTS_TIMEOUT:
             raise forms.ValidationError("Timestamp check failed")
         return ts
 

@@ -31,3 +31,11 @@ An app which provides :doc:`customization of the comments framework
 <custom>`.  Use the same dotted-string notation
 as in :setting:`INSTALLED_APPS`.  Your custom :setting:`COMMENTS_APP`
 must also be listed in :setting:`INSTALLED_APPS`.
+
+.. setting:: COMMENTS_TIMEOUT
+
+COMMENT_TIMEOUT
+------------------
+
+The maximum comment form timeout in seconds. The default value is
+``2 * 60 * 60`` (2 hours).