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module ActionController #:nodoc:
# Cookies are read and written through ActionController#cookies. The cookies being read is what was received along with the request,
# the cookies being written is what will be sent out will the response. Cookies are read by value (so you won't get the cookie object
# itself back -- just the value it holds). Examples for writing:
#
# cookies["user_name"] = "david" # => Will set a simple session cookie
# cookies["login"] = { :value => "XJ-122", :expires => Time.now + 360} # => Will set a cookie that expires in 1 hour
#
# Examples for reading:
#
# cookies["user_name"] # => "david"
# cookies.size # => 2
#
# Example for deleting:
#
# cookies.delete "user_name"
#
# All 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 secure cookie or not (default to false).
# Secure cookies are only transmitted to HTTPS servers.
module Cookies
# Returns the cookie container, which operates as described above.
def cookies
CookieJar.new(self)
end
end
class CookieJar < Hash #:nodoc:
def initialize(controller)
@controller, @cookies = controller, controller.instance_variable_get("@cookies")
super()
update(@cookies)
end
# Returns the value of the cookie by +name+ -- or nil if no such cookie exist. You set new cookies using either the cookie method
# or cookies[]= (for simple name/value cookies without options).
def [](name)
@cookies[name.to_s].value.first if @cookies[name.to_s] && @cookies[name.to_s].respond_to?(:value)
end
def []=(name, options)
if options.is_a?(Hash)
options = options.inject({}) { |options, pair| options[pair.first.to_s] = pair.last; options }
options["name"] = name.to_s
else
options = { "name" => name.to_s, "value" => options }
end
set_cookie(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
def delete(name)
set_cookie("name" => name.to_s, "value" => "", "expires" => Time.at(0))
end
private
def set_cookie(options) #:doc:
options["path"] = "/" unless options["path"]
cookie = CGI::Cookie.new(options)
@controller.logger.info "Cookie set: #{cookie}" unless @controller.logger.nil?
@controller.response.headers["cookie"] << cookie
end
end
end
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