Module: Qcore::Authorization::InstanceMethods

Defined in:
lib/qcore/authorization.rb

Instance Method Summary collapse

Instance Method Details

#authorisation ⇒ Object

Autherisation for controller Maps user roles to controller/actions



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# File 'lib/qcore/authorization.rb', line 19

def authorisation
  crud_map = { 'index' => 'read', 'show' => 'read', 'new' => 'create', 'create' => 'create', 'edit' => 'update', 'update' => 'update', 'destroy' => 'delete'}

  allowed = false

  # load auth file for current environment
  auth_file = File.join(RAILS_ROOT, 'config', 'authorisation.yml')
  raise "authorisation.yml missing" unless File.exists? auth_file
  auth = YAML::load(File.open(auth_file))[RAILS_ENV]

  # TODO: replace with this (upgrade to latest settingslogic as to_hash does not return a Hash)
  #auth = Settings.security.authorization.to_hash


  controller_name = self.class.to_s.gsub('Controller', '').downcase # 'ReportsController' becomes 'reports'



  # get hash for controller (navigate down namespacing)
  controller_name.split('::').each do | c |

    auth = auth[c]

    break if auth.is_a? String # leaf
  end

  # hash of actions and roles
  if auth.is_a? Hash
    action_name = crud_map[self.action_name] || self.action_name
    auth = auth[action_name] || auth['all']
    unless auth.nil?
      auth = auth.split(' ')
    else
      render :text => "Action (#{action_name}) not found" and return if RAILS_ENV == 'development'
    end
  end

  auth = auth.split(' ') if auth.is_a? String # turn single role in to an array

  # auth is now an array of roles
  if auth.is_a? Array
    allowed = true if auth.include? 'public'
    if current_user
      allowed = true if current_user.roles.any? { |r| auth.include? r }
      allowed = true if current_user.roles.include? 'super'
      logger.debug 'No roles' if current_user.roles.empty?
    else
      logger.debug 'Not logged in'
    end
  end

  logger.debug "**********"
  logger.debug "controller: #{self.controller_name} action: #{self.action_name}"
  logger.debug "controller: #{controller_name}"
  logger.debug "action roles: #{auth.inspect} "
  logger.debug "user roles: #{current_user.roles.inspect}" if current_user
  logger.debug "allowed: #{allowed}"
  logger.debug "**********"

  unless allowed
    if current_user
      render :text => 'Not allowed' and return
    else
      store_location
      flash[:notice] = 'Please login to continue'
      redirect_to  and return
    end
  end
end