Class: HTTP::CookieJar::MozillaStore

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

Overview

A store class that uses Mozilla compatible SQLite3 database as backing store.

Session cookies are stored separately on memory and will not be stored persistently in the SQLite3 database.

Defined Under Namespace

Classes: Database

Constant Summary collapse

SCHEMA_VERSION =

:stopdoc:

5
ALL_COLUMNS = 
%w[
  baseDomain
  appId inBrowserElement
  name value
  host path
  expiry creationTime lastAccessed
  isSecure isHttpOnly
]
UK_COLUMNS = 
%w[
  name host path
  appId inBrowserElement
]
SQL = 
{}
Callable = 
proc { |obj, meth, *args|
  proc {
    obj.__send__(meth, *args)
  }
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from AbstractStore

class_to_symbol, #empty?, implementation, inherited

Constructor Details

#initialize(options = nil) ⇒ MozillaStore

:call-seq:

new(**options)

Generates a Mozilla cookie store. If the file does not exist, it is created. If it does and its schema is old, it is automatically upgraded with a new schema keeping the existing data.

Available option keywords are as below:

:filename : A file name of the SQLite3 database to open. This option is mandatory.

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

:app_id : application ID (default: ‘0`) to have per application jar.

:in_browser_element : a flag to tell if cookies are stored in an in browser element. (default: ‘false`)



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 95

def initialize(options = nil)
  super

  @filename = options[:filename] or raise ArgumentError, ':filename option is missing'

  @sjar = HTTP::CookieJar::HashStore.new

  @db = Database.new(@filename)

  @stmt = Hash.new { |st, key|
    st[key] = @db.prepare(SQL[key])
  }

  ObjectSpace.define_finalizer(self, Callable[@db, :close])

  upgrade_database

  @gc_index = 0
end

Instance Attribute Details

#filename ⇒ Object (readonly)

The file name of the SQLite3 database given in initialization.



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 121

def filename
  @filename
end

Instance Method Details

#add(cookie) ⇒ Object 



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 300

def add(cookie)
  if cookie.session?
    @sjar.add(cookie)
    db_delete(cookie)
  else
    @sjar.delete(cookie)
    db_add(cookie)
  end
end

#cleanup(session = false) ⇒ Object 



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 430

def cleanup(session = false)
  synchronize {
    break if @gc_index == 0

    @stmt[:delete_expired].execute({ 'expiry' => Time.now.to_i })

    @stmt[:overusing_domains].execute({
        'count' => HTTP::Cookie::MAX_COOKIES_PER_DOMAIN
      }).each { |row|
      domain, count = row['domain'], row['count']

      @stmt[:delete_per_domain_overuse].execute({
          'domain' => domain,
          'limit' => count - HTTP::Cookie::MAX_COOKIES_PER_DOMAIN,
        })
    }

    overrun = count - HTTP::Cookie::MAX_COOKIES_TOTAL

    if overrun > 0
      @stmt[:delete_total_overuse].execute({ 'limit' => overrun })
    end

    @gc_index = 0
  }
  self
end

#clear ⇒ Object 



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 399

def clear
  @db.execute("DELETE FROM moz_cookies")
  @sjar.clear
  self
end

#close ⇒ Object

Closes the SQLite3 database. After closing, any operation may raise an error.



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 125

def close
  @db.closed? || @db.close
  self
end

#closed? ⇒ Boolean

Tests if the SQLite3 database is closed.

Returns:

  • (Boolean) 


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# File 'lib/http/cookie_jar/mozilla_store.rb', line 131

def closed?
  @db.closed?
end

#default_options ⇒ Object 



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 15

def default_options
  {
    :gc_threshold => HTTP::Cookie::MAX_COOKIES_TOTAL / 20,
    :app_id => 0,
    :in_browser_element => false,
  }
end

#delete(cookie) ⇒ Object 



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 310

def delete(cookie)
  @sjar.delete(cookie)
  db_delete(cookie)
end

#each(uri = nil, &block) ⇒ Object

:yield: cookie



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 336

def each(uri = nil, &block) # :yield: cookie
  now = Time.now
  if uri
    thost = DomainName.new(uri.host)
    tpath = uri.path

    @stmt[:cookies_for_domain].execute({
        :baseDomain => thost.domain || thost.hostname,
        :appId => @app_id,
        :inBrowserElement => @in_browser_element ? 1 : 0,
        :expiry => now.to_i,
      }).each { |row|
      if secure = row['isSecure'] != 0
        next unless URI::HTTPS === uri
      end

      cookie = HTTP::Cookie.new({}.tap { |attrs|
          attrs[:name]        = row['name']
          attrs[:value]       = row['value']
          attrs[:domain]      = row['host']
          attrs[:path]        = row['path']
          attrs[:expires_at]  = Time.at(row['expiry'])
          attrs[:accessed_at] = Time.at(row['lastAccessed'] || 0)
          attrs[:created_at]  = Time.at(row['creationTime'] || 0)
          attrs[:secure]      = secure
          attrs[:httponly]    = row['isHttpOnly'] != 0
        })

      if cookie.valid_for_uri?(uri)
        cookie.accessed_at = now
        @stmt[:update_lastaccessed].execute({
            'lastAccessed' => now.to_i,
            'id' => row['id'],
          })
        yield cookie
      end
    }
    @sjar.each(uri, &block)
  else
    @stmt[:all_cookies].execute({
        :appId => @app_id,
        :inBrowserElement => @in_browser_element ? 1 : 0,
        :expiry => now.to_i,
      }).each { |row|
      cookie = HTTP::Cookie.new({}.tap { |attrs|
          attrs[:name]        = row['name']
          attrs[:value]       = row['value']
          attrs[:domain]      = row['host']
          attrs[:path]        = row['path']
          attrs[:expires_at]  = Time.at(row['expiry'])
          attrs[:accessed_at] = Time.at(row['lastAccessed'] || 0)
          attrs[:created_at]  = Time.at(row['creationTime'] || 0)
          attrs[:secure]      = row['isSecure'] != 0
          attrs[:httponly]    = row['isHttpOnly'] != 0
        })

      yield cookie
    }
    @sjar.each(&block)
  end
  self
end

#initialize_copy(other) ⇒ Object

Raises TypeError. Cloning is inhibited in this store class.

Raises:

  • (TypeError) 


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# File 'lib/http/cookie_jar/mozilla_store.rb', line 116

def initialize_copy(other)
  raise TypeError, 'can\'t clone %s' % self.class
end

#schema_version ⇒ Object

Returns the schema version of the database.



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# File 'lib/http/cookie_jar/mozilla_store.rb', line 136

def schema_version
  @schema_version ||= @db.execute("PRAGMA user_version").first[0]
rescue SQLite3::SQLException
  @logger.warn "couldn't get schema version!" if @logger
  return nil
end