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# :markup: markdown
require 'monitor'
# An abstract superclass for all store classes.
class HTTP::CookieJar::AbstractStore
include MonitorMixin
class << self
@@class_map = {}
# Gets an implementation class by the name, optionally trying to
# load "http/cookie_jar/*_store" if not found. If loading fails,
# IndexError is raised.
def implementation(symbol)
@@class_map.fetch(symbol)
rescue IndexError
begin
require 'http/cookie_jar/%s_store' % symbol
@@class_map.fetch(symbol)
rescue LoadError, IndexError => e
raise IndexError, 'cookie store unavailable: %s, error: %s' % symbol.inspect, e.message
end
end
def inherited(subclass) # :nodoc:
@@class_map[class_to_symbol(subclass)] = subclass
end
def class_to_symbol(klass) # :nodoc:
klass.name[/[^:]+?(?=Store$|$)/].downcase.to_sym
end
end
# Defines options and their default values.
def default_options
# {}
end
private :default_options
# :call-seq:
# new(**options)
#
# Called by the constructor of each subclass using super().
def initialize(options = nil)
super() # MonitorMixin
options ||= {}
@logger = options[:logger]
# Initializes each instance variable of the same name as option
# keyword.
default_options.each_pair { |key, default|
instance_variable_set("@#{key}", options.fetch(key, default))
}
end
# This is an abstract method that each subclass must override.
def initialize_copy(other)
# self
end
# Implements HTTP::CookieJar#add().
#
# This is an abstract method that each subclass must override.
def add(cookie)
# self
end
# Implements HTTP::CookieJar#delete().
#
# This is an abstract method that each subclass must override.
def delete(cookie)
# self
end
# Iterates over all cookies that are not expired.
#
# An optional argument +uri+ specifies a URI object indicating the
# destination of the cookies being selected. Every cookie yielded
# should be good to send to the given URI,
# i.e. cookie.valid_for_uri?(uri) evaluates to true.
#
# If (and only if) the +uri+ option is given, last access time of
# each cookie is updated to the current time.
#
# This is an abstract method that each subclass must override.
def each(uri = nil, &block) # :yield: cookie
# if uri
# ...
# else
# synchronize {
# ...
# }
# end
# self
end
include Enumerable
# Implements HTTP::CookieJar#empty?().
def empty?
each { return false }
true
end
# Implements HTTP::CookieJar#clear().
#
# This is an abstract method that each subclass must override.
def clear
# self
end
# Implements HTTP::CookieJar#cleanup().
#
# This is an abstract method that each subclass must override.
def cleanup(session = false)
# if session
# select { |cookie| cookie.session? || cookie.expired? }
# else
# select(&:expired?)
# end.each { |cookie|
# delete(cookie)
# }
# # subclasses can optionally remove over-the-limit cookies.
# self
end
end
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