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unfreeze rails 2.3.9

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Reinier Balt 2011-02-04 16:35:00 +01:00
parent 6443adac78
commit dea6dbe4da
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191
vendor/rails/actionpack/lib/action_controller/cookies.rb vendored
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module ActionController #:nodoc:
# Cookies are read and written through ActionController#cookies.
#
# The cookies being read are the ones received along with the request, the cookies
# being written will be sent out with the response. Reading a cookie does not get
# the cookie object itself back, just the value it holds.
#
# Examples for writing:
#
# # Sets a simple session cookie.
# cookies[:user_name] = "david"
#
# # Sets a cookie that expires in 1 hour.
# cookies[:login] = { :value => "XJ-122", :expires => 1.hour.from_now }
#
# Examples for reading:
#
# cookies[:user_name] # => "david"
# cookies.size # => 2
#
# Example for deleting:
#
# cookies.delete :user_name
#
# Please note that if you specify a :domain when setting a cookie, you must also specify the domain when deleting the cookie:
#
# cookies[:key] = {
# :value => 'a yummy cookie',
# :expires => 1.year.from_now,
# :domain => 'domain.com'
# }
#
# cookies.delete(:key, :domain => 'domain.com')
#
# The option symbols for setting cookies are:
#
# * <tt>:value</tt> - The cookie's value or list of values (as an array).
# * <tt>:path</tt> - The path for which this cookie applies. Defaults to the root
# of the application.
# * <tt>:domain</tt> - The domain for which this cookie applies.
# * <tt>:expires</tt> - The time at which this cookie expires, as a Time object.
# * <tt>:secure</tt> - Whether this cookie is a only transmitted to HTTPS servers.
# Default is +false+.
# * <tt>:httponly</tt> - Whether this cookie is accessible via scripting or
# only HTTP. Defaults to +false+.
module Cookies
def self.included(base)
base.helper_method :cookies
base.cattr_accessor :cookie_verifier_secret
end
protected
# Returns the cookie container, which operates as described above.
def cookies
@cookies ||= CookieJar.new(self)
end
end
class CookieJar < Hash #:nodoc:
attr_reader :controller
def initialize(controller)
@controller, @cookies = controller, controller.request.cookies
super()
update(@cookies)
end
# Returns the value of the cookie by +name+, or +nil+ if no such cookie exists.
def [](name)
super(name.to_s)
end
# Sets the cookie named +name+. The second argument may be the very cookie
# value, or a hash of options as documented above.
def []=(key, options)
if options.is_a?(Hash)
options.symbolize_keys!
else
options = { :value => options }
end
options[:path] = "/" unless options.has_key?(:path)
super(key.to_s, options[:value])
@controller.response.set_cookie(key, options)
end
# Removes the cookie on the client machine by setting the value to an empty string
# and setting its expiration date into the past. Like <tt>[]=</tt>, you can pass in
# an options hash to delete cookies with extra data such as a <tt>:path</tt>.
def delete(key, options = {})
options.symbolize_keys!
options[:path] = "/" unless options.has_key?(:path)
value = super(key.to_s)
@controller.response.delete_cookie(key, options)
value
end
# Returns a jar that'll automatically set the assigned cookies to have an expiration date 20 years from now. Example:
#
# cookies.permanent[:prefers_open_id] = true
# # => Set-Cookie: prefers_open_id=true; path=/; expires=Sun, 16-Dec-2029 03:24:16 GMT
#
# This jar is only meant for writing. You'll read permanent cookies through the regular accessor.
#
# This jar allows chaining with the signed jar as well, so you can set permanent, signed cookies. Examples:
#
# cookies.permanent.signed[:remember_me] = current_user.id
# # => Set-Cookie: discount=BAhU--848956038e692d7046deab32b7131856ab20e14e; path=/; expires=Sun, 16-Dec-2029 03:24:16 GMT
def permanent
@permanent ||= PermanentCookieJar.new(self)
end
# Returns a jar that'll automatically generate a signed representation of cookie value and verify it when reading from
# the cookie again. This is useful for creating cookies with values that the user is not supposed to change. If a signed
# cookie was tampered with by the user (or a 3rd party), an ActiveSupport::MessageVerifier::InvalidSignature exception will
# be raised.
#
# This jar requires that you set a suitable secret for the verification on ActionController::Base.cookie_verifier_secret.
#
# Example:
#
# cookies.signed[:discount] = 45
# # => Set-Cookie: discount=BAhpMg==--2c1c6906c90a3bc4fd54a51ffb41dffa4bf6b5f7; path=/
#
# cookies.signed[:discount] # => 45
def signed
@signed ||= SignedCookieJar.new(self)
end
end
class PermanentCookieJar < CookieJar #:nodoc:
def initialize(parent_jar)
@parent_jar = parent_jar
end
def []=(key, options)
if options.is_a?(Hash)
options.symbolize_keys!
else
options = { :value => options }
end
options[:expires] = 20.years.from_now
@parent_jar[key] = options
end
def signed
@signed ||= SignedCookieJar.new(self)
end
def controller
@parent_jar.controller
end
def method_missing(method, *arguments, &block)
@parent_jar.send(method, *arguments, &block)
end
end
class SignedCookieJar < CookieJar #:nodoc:
def initialize(parent_jar)
unless parent_jar.controller.class.cookie_verifier_secret
raise "You must set ActionController::Base.cookie_verifier_secret to use signed cookies"
end
@parent_jar = parent_jar
@verifier = ActiveSupport::MessageVerifier.new(@parent_jar.controller.class.cookie_verifier_secret)
end
def [](name)
if value = @parent_jar[name]
@verifier.verify(value)
end
end
def []=(key, options)
if options.is_a?(Hash)
options.symbolize_keys!
options[:value] = @verifier.generate(options[:value])
else
options = { :value => @verifier.generate(options) }
end
@parent_jar[key] = options
end
def method_missing(method, *arguments, &block)
@parent_jar.send(method, *arguments, &block)
end
end
end