Rack::Session::Pool provides simple cookie based session management. Session data is stored in a hash held by @pool. In the context of a multithreaded environment, sessions being committed to the pool is done in a merging manner.
The :drop option is available in rack.session.options if you wish to explicitly remove the session from the session cache.
Example:
myapp = MyRackApp.new sessioned = Rack::Session::Pool.new(myapp, :domain => 'foo.com', :expire_after => 2592000 ) Rack::Handler::WEBrick.run sessioned
# File lib/rack/session/pool.rb, line 31 def initialize(app, options={}) super @pool = Hash.new @mutex = Mutex.new end
# File lib/rack/session/pool.rb, line 37 def generate_sid loop do sid = super break sid unless @pool.key? sid end end
# File lib/rack/session/pool.rb, line 44 def get_session(env, sid) session = @pool[sid] if sid @mutex.lock if env['rack.multithread'] unless sid and session env['rack.errors'].puts("Session '#{sid.inspect}' not found, initializing...") if $VERBOSE and not sid.nil? session = {} sid = generate_sid @pool.store sid, session end session.instance_variable_set('@old', {}.merge(session)) return [sid, session] ensure @mutex.unlock if env['rack.multithread'] end
# File lib/rack/session/pool.rb, line 59 def set_session(env, session_id, new_session, options) @mutex.lock if env['rack.multithread'] session = @pool[session_id] if options[:renew] or options[:drop] @pool.delete session_id return false if options[:drop] session_id = generate_sid @pool.store session_id, 0 end old_session = new_session.instance_variable_get('@old') || {} session = merge_sessions session_id, old_session, new_session, session @pool.store session_id, session return session_id rescue warn "#{new_session.inspect} has been lost." warn $!.inspect ensure @mutex.unlock if env['rack.multithread'] end