Class: HTTP::CookieJar::HashStore

Inherits:
AbstractStore show all
Defined in:
lib/http/cookie_jar/hash_store.rb

Overview

A store class that uses a hash-based cookie store.

In this store, cookies that share the same name, domain and path will overwrite each other regardless of the ‘for_domain` flag value. This store is built after the storage model described in RFC 6265 5.3 where there is no mention of how the host-only-flag affects in storing cookies. On the other hand, in MozillaStore two cookies with the same name, domain and path coexist as long as they differ in the `for_domain` flag value, which means they need to be expired individually.

Instance Method Summary collapse

Methods inherited from AbstractStore

class_to_symbol, #empty?, implementation, inherited

Constructor Details

#initialize(options = nil) ⇒ HashStore

:call-seq:

new(**options)

Generates a hash based cookie store.

Available option keywords are as below:

:gc_threshold : GC threshold; A GC happens when this many times cookies have been stored (default: ‘HTTP::Cookie::MAX_COOKIES_TOTAL / 20`)



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# File 'lib/http/cookie_jar/hash_store.rb', line 32

def initialize(options = nil)
  super

  @jar = {
  # hostname => {
  #   path => {
  #     name => cookie,
  #     ...
  #   },
  #   ...
  # },
  # ...
  }

  @gc_index = 0
end

Instance Method Details

#add(cookie) ⇒ Object 



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# File 'lib/http/cookie_jar/hash_store.rb', line 54

def add(cookie)
  path_cookies = ((@jar[cookie.domain] ||= {})[cookie.path] ||= {})
  path_cookies[cookie.name] = cookie
  cleanup if (@gc_index += 1) >= @gc_threshold
  self
end

#cleanup(session = false) ⇒ Object 



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# File 'lib/http/cookie_jar/hash_store.rb', line 113

def cleanup(session = false)
  now = Time.now
  all_cookies = []

  synchronize {
    break if @gc_index == 0

    @jar.each { |domain, paths|
      domain_cookies = []

      paths.each { |path, hash|
        hash.delete_if { |name, cookie|
          if cookie.expired?(now) || (session && cookie.session?)
            true
          else
            domain_cookies << cookie
            false
          end
        }
      }

      if (debt = domain_cookies.size - HTTP::Cookie::MAX_COOKIES_PER_DOMAIN) > 0
        domain_cookies.sort_by!(&:created_at)
        domain_cookies.slice!(0, debt).each { |cookie|
          delete(cookie)
        }
      end

      all_cookies.concat(domain_cookies)
    }

    if (debt = all_cookies.size - HTTP::Cookie::MAX_COOKIES_TOTAL) > 0
      all_cookies.sort_by!(&:created_at)
      all_cookies.slice!(0, debt).each { |cookie|
        delete(cookie)
      }
    end

    @jar.delete_if { |domain, paths|
      paths.delete_if { |path, hash|
        hash.empty?
      }
      paths.empty?
    }

    @gc_index = 0
  }
  self
end

#clear ⇒ Object 



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# File 'lib/http/cookie_jar/hash_store.rb', line 108

def clear
  @jar.clear
  self
end

#default_options ⇒ Object 



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# File 'lib/http/cookie_jar/hash_store.rb', line 16

def default_options
  {
    :gc_threshold => HTTP::Cookie::MAX_COOKIES_TOTAL / 20
  }
end

#delete(cookie) ⇒ Object 



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# File 'lib/http/cookie_jar/hash_store.rb', line 61

def delete(cookie)
  path_cookies = ((@jar[cookie.domain] ||= {})[cookie.path] ||= {})
  path_cookies.delete(cookie.name)
  self
end

#each(uri = nil) ⇒ Object

:yield: cookie



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# File 'lib/http/cookie_jar/hash_store.rb', line 67

def each(uri = nil) # :yield: cookie
  now = Time.now
  if uri
    thost = DomainName.new(uri.host)
    tpath = uri.path
    @jar.each { |domain, paths|
      next unless thost.cookie_domain?(domain)
      paths.each { |path, hash|
        next unless HTTP::Cookie.path_match?(path, tpath)
        hash.delete_if { |name, cookie|
          if cookie.expired?(now)
            true
          else
            if cookie.valid_for_uri?(uri)
              cookie.accessed_at = now
              yield cookie
            end
            false
          end
        }
      }
    }
  else
    synchronize {
      @jar.each { |domain, paths|
        paths.each { |path, hash|
          hash.delete_if { |name, cookie|
            if cookie.expired?(now)
              true
            else
              yield cookie
              false
            end
          }
        }
      }
    }
  end
  self
end

#initialize_copy(other) ⇒ Object

The copy constructor. This store class supports cloning.



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# File 'lib/http/cookie_jar/hash_store.rb', line 50

def initialize_copy(other)
  @jar = Marshal.load(Marshal.dump(other.instance_variable_get(:@jar)))
end