Set a specific S3 expiration time so that files can be cached

app/helpers/application_helper.rb

@@ -5,7 +5,7 @@ module ApplicationHelper
     current_page?(path) ? 'active' : ''
   end
 
-  def id_paginate(path, per_page, collection)
-  	# todo
+  def s3_expiry
+    Time.zone.now.beginning_of_day.since 25.hours
   end
 end

app/helpers/stream_entries_helper.rb

@@ -6,7 +6,7 @@ module StreamEntriesHelper
   end
 
   def avatar_for_status_url(status)
-    status.reblog? ? status.reblog.account.avatar.expiring_url(3600, :original) : status.account.avatar.expiring_url(3600, :original)
+    status.reblog? ? status.reblog.account.avatar.expiring_url(s3_expiry, :original) : status.account.avatar.expiring_url(s3_expiry, :original)
   end
 
   def entry_classes(status, is_predecessor, is_successor, include_threads)