Switch to using memcache as the session store

[rails.git] / config / initializers / session_store.rb

diff --git a/config/initializers/session_store.rb b/config/initializers/session_store.rb
index 77fd39092240465a623244003e8f722f702588b3..72f2da7c5ff792c3aa4b8010b3bbe49c8cda8769 100644 (file)
--- a/config/initializers/session_store.rb
+++ b/config/initializers/session_store.rb
@@ -1,17 +1,35 @@
 # Be sure to restart your server when you modify this file.
 
-# Your secret key for verifying cookie session data integrity.
-# If you change this key, all old sessions will become invalid!
-# Make sure the secret is at least 30 characters and all random, 
-# no regular words or you'll be exposed to dictionary attacks.
-ActionController::Base.session = {
-  :key         => '_osm_session',
-  :secret      => 'd886369b1e709c61d1f9fcb07384a2b96373c83c01bfc98c6611a9fe2b6d0b14215bb360a0154265cccadde5489513f2f9b8d9e7b384a11924f772d2872c2a1f'
-}
+if defined?(MEMCACHE_SERVERS)
+  unless STATUS == :database_offline or STATUS == :database_readonly
+    module Rack
+      module Session
+        class Memcache
+          def get_session(env, sid)
+            with_lock(env, [nil, {}]) do
+              unless sid and session = @pool.get(sid)
+                if sid and s = ActiveRecord::SessionStore::SqlBypass.find_by_session_id(sid)
+                  session = s.data
+                  s.destroy
+                else
+                  sid, session = generate_sid, {}
+                end
+                
+                unless /^STORED/ =~ @pool.add(sid, session)
+                  raise "Session collision on '#{sid.inspect}'"
+                end
+              end
+              [sid, session]
+            end
+          end
+        end
+      end
+    end
+  end
 
-# Use the database for sessions instead of the cookie-based default,
-# which shouldn't be used to store highly confidential information
-# (create the session table with "rake db:sessions:create")
-unless STATUS == :database_offline or STATUS == :database_readonly
-  ActionController::Base.session_store = :sql_session_store
+  cache = MemCache.new(:namespace => "rails:session", :string_return_types => true)
+
+  OpenStreetMap::Application.config.session_store :mem_cache_store, :cache => cache, :key => "_osm_session"
+else
+  OpenStreetMap::Application.config.session_store :cookie_store, :key => '_osm_session'
 end