SoundSoftware Code Site

# Redmine - project management software

# Copyright (C) 2006-2009  Jean-Philippe Lang

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 2

# of the License, or (at your option) any later version.

# 

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# 

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

class Token < ActiveRecord::Base

  belongs_to :user

  validates_uniqueness_of :value

  before_create :delete_previous_tokens

  @@validity_time = 1.day

  def before_create

    self.value = Token.generate_token_value

  end

  # Return true if token has expired  

  def expired?

    return Time.now > self.created_on + @@validity_time

  end

  # Delete all expired tokens

  def self.destroy_expired

    Token.delete_all ["action <> 'feeds' AND created_on < ?", Time.now - @@validity_time]

  end

private

  def self.generate_token_value

    ActiveSupport::SecureRandom.hex(20)

  end

  # Removes obsolete tokens (same user and action)

  def delete_previous_tokens

    if user

      Token.delete_all(['user_id = ? AND action = ?', user.id, action])

    end

  end

end