class Rack::Session::Pool

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

Constants

DEFAULT_OPTIONS

Attributes

mutex[R]
pool[R]

Public Class Methods

new(app, options={}) click to toggle source
# File lib/rack/session/pool.rb, line 31
def initialize(app, options={})
  super
  @pool = Hash.new
  @mutex = Mutex.new
end

Public Instance Methods

generate_sid() click to toggle source
# File lib/rack/session/pool.rb, line 37
def generate_sid
  loop do
    sid = super
    break sid unless @pool.key? sid
  end
end
get_session(env, sid) click to toggle source
# 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
set_session(env, session_id, new_session, options) click to toggle source
# 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