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author | Joshua Peek <josh@joshpeek.com> | 2009-04-14 15:52:23 -0500 |
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committer | Joshua Peek <josh@joshpeek.com> | 2009-04-14 15:52:23 -0500 |
commit | 4839fe2e8201835a53ab6c75528a613e8bf25bfb (patch) | |
tree | 55f5c3f76358fcbb28fca6ac9bcd915cbefac89a /actionpack/lib/action_controller/vendor/rack-1.0/rack/session/memcache.rb | |
parent | 1120aaceae95b95ef491ca226154500051b5fe38 (diff) | |
download | rails-4839fe2e8201835a53ab6c75528a613e8bf25bfb.tar.gz rails-4839fe2e8201835a53ab6c75528a613e8bf25bfb.tar.bz2 rails-4839fe2e8201835a53ab6c75528a613e8bf25bfb.zip |
Move bundled rack into ActionDispatch
Diffstat (limited to 'actionpack/lib/action_controller/vendor/rack-1.0/rack/session/memcache.rb')
-rw-r--r-- | actionpack/lib/action_controller/vendor/rack-1.0/rack/session/memcache.rb | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/actionpack/lib/action_controller/vendor/rack-1.0/rack/session/memcache.rb b/actionpack/lib/action_controller/vendor/rack-1.0/rack/session/memcache.rb deleted file mode 100644 index 4a65cbf35d..0000000000 --- a/actionpack/lib/action_controller/vendor/rack-1.0/rack/session/memcache.rb +++ /dev/null @@ -1,109 +0,0 @@ -# AUTHOR: blink <blinketje@gmail.com>; blink#ruby-lang@irc.freenode.net - -require 'rack/session/abstract/id' -require 'memcache' - -module Rack - module Session - # Rack::Session::Memcache provides simple cookie based session management. - # Session data is stored in memcached. The corresponding session key is - # maintained in the cookie. - # You may treat Session::Memcache as you would Session::Pool with the - # following caveats. - # - # * Setting :expire_after to 0 would note to the Memcache server to hang - # onto the session data until it would drop it according to it's own - # specifications. However, the cookie sent to the client would expire - # immediately. - # - # Note that memcache does drop data before it may be listed to expire. For - # a full description of behaviour, please see memcache's documentation. - - class Memcache < Abstract::ID - attr_reader :mutex, :pool - DEFAULT_OPTIONS = Abstract::ID::DEFAULT_OPTIONS.merge \ - :namespace => 'rack:session', - :memcache_server => 'localhost:11211' - - def initialize(app, options={}) - super - - @mutex = Mutex.new - @pool = MemCache. - new @default_options[:memcache_server], @default_options - raise 'No memcache servers' unless @pool.servers.any?{|s|s.alive?} - end - - def generate_sid - loop do - sid = super - break sid unless @pool.get(sid, true) - end - end - - def get_session(env, sid) - session = @pool.get(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 - ret = @pool.add sid, session - raise "Session collision on '#{sid.inspect}'" unless /^STORED/ =~ ret - end - session.instance_variable_set('@old', {}.merge(session)) - return [sid, session] - rescue MemCache::MemCacheError, Errno::ECONNREFUSED # MemCache server cannot be contacted - warn "#{self} is unable to find server." - warn $!.inspect - return [ nil, {} ] - ensure - @mutex.unlock if env['rack.multithread'] - end - - def set_session(env, session_id, new_session, options) - expiry = options[:expire_after] - expiry = expiry.nil? ? 0 : expiry + 1 - - @mutex.lock if env['rack.multithread'] - session = @pool.get(session_id) || {} - if options[:renew] or options[:drop] - @pool.delete session_id - return false if options[:drop] - session_id = generate_sid - @pool.add session_id, 0 # so we don't worry about cache miss on #set - end - old_session = new_session.instance_variable_get('@old') || {} - session = merge_sessions session_id, old_session, new_session, session - @pool.set session_id, session, expiry - return session_id - rescue MemCache::MemCacheError, Errno::ECONNREFUSED # MemCache server cannot be contacted - warn "#{self} is unable to find server." - warn $!.inspect - return false - ensure - @mutex.unlock if env['rack.multithread'] - end - - private - - def merge_sessions sid, old, new, cur=nil - cur ||= {} - unless Hash === old and Hash === new - warn 'Bad old or new sessions provided.' - return cur - end - - delete = old.keys - new.keys - warn "//@#{sid}: delete #{delete*','}" if $VERBOSE and not delete.empty? - delete.each{|k| cur.delete k } - - update = new.keys.select{|k| new[k] != old[k] } - warn "//@#{sid}: update #{update*','}" if $VERBOSE and not update.empty? - update.each{|k| cur[k] = new[k] } - - cur - end - end - end -end |