74 lines
2.3 KiB
Ruby
74 lines
2.3 KiB
Ruby
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# AUTHOR: blink <blinketje@gmail.com>; blink#ruby-lang@irc.freenode.net
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# THANKS:
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# apeiros, for session id generation, expiry setup, and threadiness
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# sergio, threadiness and bugreps
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require 'rack/session/abstract/id'
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require 'thread'
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module Rack
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module Session
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# Rack::Session::Pool provides simple cookie based session management.
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# Session data is stored in a hash held by @pool.
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# In the context of a multithreaded environment, sessions being
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# committed to the pool is done in a merging manner.
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#
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# Example:
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# myapp = MyRackApp.new
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# sessioned = Rack::Session::Pool.new(myapp,
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# :key => 'rack.session',
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# :domain => 'foo.com',
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# :path => '/',
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# :expire_after => 2592000
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# )
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# Rack::Handler::WEBrick.run sessioned
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class Pool < Abstract::ID
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attr_reader :mutex, :pool
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DEFAULT_OPTIONS = Abstract::ID::DEFAULT_OPTIONS.dup
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def initialize(app, options={})
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super
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@pool = Hash.new
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@mutex = Mutex.new
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end
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private
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def get_session(env, sid)
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session = @mutex.synchronize do
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unless sess = @pool[sid] and ((expires = sess[:expire_at]).nil? or expires > Time.now)
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@pool.delete_if{|k,v| expiry = v[:expire_at] and expiry < Time.now }
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begin
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sid = generate_sid
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end while @pool.has_key?(sid)
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end
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@pool[sid] ||= {}
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end
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[sid, session]
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end
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def set_session(env, sid)
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options = env['rack.session.options']
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expiry = options[:expire_after] && options[:at]+options[:expire_after]
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@mutex.synchronize do
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old_session = @pool[sid]
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old_session[:expire_at] = expiry if expiry
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session = old_session.merge(env['rack.session'])
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@pool[sid] = session
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session.each do |k,v|
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next unless old_session.has_key?(k) and v != old_session[k]
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warn "session value assignment collision at #{k}: #{old_session[k]} <- #{v}"
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end if $DEBUG and env['rack.multithread']
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end
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return true
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rescue
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warn "#{self} is unable to find server."
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warn "#{env['rack.session'].inspect} has been lost."
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warn $!.inspect
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return false
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end
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end
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end
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end
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