Class: Rack::Session::Cookie
- Inherits:
-
Abstract::ID
- Object
- Abstract::ID
- Rack::Session::Cookie
- Defined in:
- rack/rack/session/cookie.rb
Overview
Rack::Session::Cookie provides simple cookie based session management. By
default, the session is a Ruby Hash stored as base64 encoded marshalled
data set to :key (default: rack.session). The object that encodes the
session data is configurable and must respond to encode
and
decode
. Both methods must take a string and return a string.
When the secret key is set, cookie data is checked for data integrity. The old secret key is also accepted and allows graceful secret rotation.
Example:
use Rack::Session::Cookie, :key => 'rack.session',
:domain => 'foo.com',
:path => '/',
:expire_after => 2592000,
:secret => 'change_me',
:old_secret => 'also_change_me'
All parameters are optional.
Example of a cookie with no encoding:
Rack::Session::Cookie.new(application, { :coder => Rack::Session::Cookie::Identity.new })
Example of a cookie with custom encoding:
Rack::Session::Cookie.new(application, { :coder => Class.new { def encode(str); str.reverse; end def decode(str); str.reverse; end }.new })
Defined Under Namespace
Classes: Base64, Identity, Reverse
Constant Summary
Instance Attribute Summary (collapse)
-
- (void) coder
readonly
Returns the value of attribute coder.
-
- (void) default_options
inherited
from Abstract::ID
readonly
Returns the value of attribute default_options.
-
- (void) key
inherited
from Abstract::ID
readonly
Returns the value of attribute key.
Instance Method Summary (collapse)
-
- (Cookie) initialize(app, options = {})
constructor
A new instance of Cookie.
Constructor Details
- (Cookie) initialize(app, options = {})
Returns a new instance of Cookie
97 98 99 100 101 102 103 104 105 106 107 108 109 110 |
# File 'rack/rack/session/cookie.rb', line 97 def initialize(app, ={}) @secrets = .values_at(:secret, :old_secret).compact warn <<-MSG unless @secrets.size >= 1 SECURITY WARNING: No secret option provided to Rack::Session::Cookie. This poses a security threat. It is strongly recommended that you provide a secret to prevent exploits that may be possible from crafted cookies. This will not be supported in future versions of Rack, and future versions will even invalidate your existing user cookies. Called from: #{caller[0]}. MSG @coder = [:coder] ||= Base64::Marshal.new super(app, .merge!(:cookie_only => true)) end |
Instance Attribute Details
- (void) coder (readonly)
Returns the value of attribute coder
95 96 97 |
# File 'rack/rack/session/cookie.rb', line 95 def coder @coder end |
- (void) default_options (readonly) Originally defined in class Abstract::ID
Returns the value of attribute default_options
- (void) key (readonly) Originally defined in class Abstract::ID
Returns the value of attribute key