class CGI::Cookie

Class representing an HTTP cookie.

In addition to its specific fields and methods, a Cookie instance is a delegator to the array of its values.

See RFC 2965.

cookie1 = CGI::Cookie.new("name", "value1", "value2", ...)
cookie1 = CGI::Cookie.new("name" => "name", "value" => "value")
cookie1 = CGI::Cookie.new('name'    => 'name',
                           'value'   => ['value1', 'value2', ...],
                           'path'    => 'path',   # optional
                           'domain'  => 'domain', # optional
                           'expires' => Time.now, # optional
                           'secure'  => true      # optional
                          )

cgi.out("cookie" => [cookie1, cookie2]) { "string" }

name    = cookie1.name
values  = cookie1.value
path    = cookie1.path
domain  = cookie1.domain
expires = cookie1.expires
secure  = cookie1.secure

cookie1.name    = 'name'
cookie1.value   = ['value1', 'value2', ...]
cookie1.path    = 'path'
cookie1.domain  = 'domain'
cookie1.expires = Time.now + 30
cookie1.secure  = true

Attributes

domain[RW]

Domain for which this cookie applies, as a String

expires[RW]

Time at which this cookie expires, as a Time

name[RW]

Name of this cookie, as a String

path[RW]

Path for which this cookie applies, as a String

secure[R]

True if this cookie is secure; false otherwise

Public Class Methods

new(name_string,*value) click to toggle source

new(options_hash)

Create a new CGI::Cookie object.

name_string

The name of the cookie; in this form, there is no domain or expiration. The path is gleaned from the SCRIPT_NAME environment variable, and secure is false.

*value

value or list of values of the cookie

options_hash

A Hash of options to initialize this Cookie. Possible options are:

name: the name of the cookie. Required.
value: the cookie's value or list of values.
path: the path for which this cookie applies. Defaults to the the value of the SCRIPT_NAME environment variable.
domain: the domain for which this cookie applies.
expires: the time at which this cookie expires, as a Time object.
secure: whether this cookie is a secure cookie or not (default to false). Secure cookies are only transmitted to HTTPS servers.

These keywords correspond to attributes of the cookie object.

Calls superclass method Array.new

# File lib/cgi/cookie.rb, line 65
def initialize(name = "", *value)
  @domain = nil
  @expires = nil
  if name.kind_of?(String)
    @name = name
    %r|^(.*/)|.match(ENV["SCRIPT_NAME"])
    @path = ($1 or "")
    @secure = false
    return super(value)
  end

  options = name
  unless options.has_key?("name")
    raise ArgumentError, "`name' required"
  end

  @name = options["name"]
  value = Array(options["value"])
  # simple support for IE
  if options["path"]
    @path = options["path"]
  else
    %r|^(.*/)|.match(ENV["SCRIPT_NAME"])
    @path = ($1 or "")
  end
  @domain = options["domain"]
  @expires = options["expires"]
  @secure = options["secure"] == true ? true : false

  super(value)
end

parse(raw_cookie) click to toggle source

Parse a raw cookie string into a hash of cookie-name=>Cookie pairs.

cookies = CGI::Cookie.parse("raw_cookie_string")
  # { "name1" => cookie1, "name2" => cookie2, ... }

# File lib/cgi/cookie.rb, line 143
def self.parse(raw_cookie)
  cookies = Hash.new([])
  return cookies unless raw_cookie

  raw_cookie.split(/[;,]\s?/).each do |pairs|
    name, values = pairs.split('=',2)
    next unless name and values
    name = CGI.unescape(name)
    values ||= ""
    values = values.split('&').collect{|v| CGI.unescape(v,@@accept_charset) }
    if cookies.has_key?(name)
      values = cookies[name].value + values
    end
    cookies[name] = Cookie.new(name, *values)
  end

  cookies
end

Public Instance Methods

inspect() click to toggle source

A summary of cookie string.

# File lib/cgi/cookie.rb, line 163
def inspect
  "#<CGI::Cookie: #{self.to_s.inspect}>"
end

secure=(val) click to toggle source

Set whether the Cookie is a secure cookie or not.

val must be a boolean.

# File lib/cgi/cookie.rb, line 121
def secure=(val)
  @secure = val if val == true or val == false
  @secure
end

to_s() click to toggle source

Convert the Cookie to its string representation.

# File lib/cgi/cookie.rb, line 127
def to_s
  val = collect{|v| CGI.escape(v) }.join("&")
  buf = "#{@name}=#{val}"
  buf << "; domain=#{@domain}" if @domain
  buf << "; path=#{@path}"     if @path
  buf << "; expires=#{CGI::rfc1123_date(@expires)}" if @expires
  buf << "; secure"            if @secure == true
  buf
end

value() click to toggle source

Returns the value or list of values for this cookie.

# File lib/cgi/cookie.rb, line 109
def value
  self
end

value=(val) click to toggle source

Replaces the value of this cookie with a new value or list of values.

# File lib/cgi/cookie.rb, line 114
def value=(val)
  replace(Array(val))
end

Examples of use¶ ↑