From cc67272cba35e50afa73cfec856c1677b204ae7e Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Sat, 22 Nov 2008 14:33:00 -0600
Subject: Vendor rack 0.4.0

---
 .../vendor/rack-0.4.0/rack/session/cookie.rb       | 71 ++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 actionpack/lib/action_controller/vendor/rack-0.4.0/rack/session/cookie.rb

(limited to 'actionpack/lib/action_controller/vendor/rack-0.4.0/rack/session/cookie.rb')

diff --git a/actionpack/lib/action_controller/vendor/rack-0.4.0/rack/session/cookie.rb b/actionpack/lib/action_controller/vendor/rack-0.4.0/rack/session/cookie.rb
new file mode 100644
index 0000000000..154a87c3ea
--- /dev/null
+++ b/actionpack/lib/action_controller/vendor/rack-0.4.0/rack/session/cookie.rb
@@ -0,0 +1,71 @@
+module Rack
+
+  module Session
+
+    # Rack::Session::Cookie provides simple cookie based session management.
+    # The session is a Ruby Hash stored as base64 encoded marshalled data
+    # set to :key (default: rack.session).
+    #
+    # Example:
+    #
+    #     use Rack::Session::Cookie, :key => 'rack.session',
+    #                                :domain => 'foo.com',
+    #                                :path => '/',
+    #                                :expire_after => 2592000
+    #
+    #     All parameters are optional.
+
+    class Cookie
+
+      def initialize(app, options={})
+        @app = app
+        @key = options[:key] || "rack.session"
+        @default_options = {:domain => nil,
+          :path => "/",
+          :expire_after => nil}.merge(options)
+      end
+
+      def call(env)
+        load_session(env)
+        status, headers, body = @app.call(env)
+        commit_session(env, status, headers, body)
+      end
+
+      private
+
+      def load_session(env)
+        request = Rack::Request.new(env)
+        session_data = request.cookies[@key]
+
+        begin
+          session_data = session_data.unpack("m*").first
+          session_data = Marshal.load(session_data)
+          env["rack.session"] = session_data
+        rescue
+          env["rack.session"] = Hash.new
+        end
+
+        env["rack.session.options"] = @default_options.dup
+      end
+
+      def commit_session(env, status, headers, body)
+        session_data = Marshal.dump(env["rack.session"])
+        session_data = [session_data].pack("m*")
+
+        if session_data.size > (4096 - @key.size)
+          env["rack.errors"].puts("Warning! Rack::Session::Cookie data size exceeds 4K. Content dropped.")
+          [status, headers, body]
+        else
+          options = env["rack.session.options"]
+          cookie = Hash.new
+          cookie[:value] = session_data
+          cookie[:expires] = Time.now + options[:expire_after] unless options[:expire_after].nil?
+          response = Rack::Response.new(body, status, headers)
+          response.set_cookie(@key, cookie.merge(options))
+          response.to_a
+        end
+      end
+
+    end
+  end
+end
-- 
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