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# Redmine - project management software

# Copyright (C) 2006-2011  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 AuthSource < ActiveRecord::Base

  include Redmine::Ciphering

  has_many :users

  validates_presence_of :name

  validates_uniqueness_of :name

  validates_length_of :name, :maximum => 60

  def authenticate(login, password)

  end

  def test_connection

  end

  def auth_method_name

    "Abstract"

  end

  def account_password

    read_ciphered_attribute(:account_password)

  end

  def account_password=(arg)

    write_ciphered_attribute(:account_password, arg)

  end

  def allow_password_changes?

    self.class.allow_password_changes?

  end

  # Does this auth source backend allow password changes?

  def self.allow_password_changes?

    false

  end

  # Try to authenticate a user not yet registered against available sources

  def self.authenticate(login, password)

    AuthSource.find(:all, :conditions => ["onthefly_register=?", true]).each do |source|

      begin

        logger.debug "Authenticating '#{login}' against '#{source.name}'" if logger && logger.debug?

        attrs = source.authenticate(login, password)

      rescue => e

        logger.error "Error during authentication: #{e.message}"

        attrs = nil

      end

      return attrs if attrs

    end

    return nil

  end

end