Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP

Mass assignment protection in Rails controllers

branch: master

Fetching latest commit…

Octocat-spinner-32-eaf2f5

Cannot retrieve the latest commit at this time

Octocat-spinner-32 lib
Octocat-spinner-32 .gitignore
Octocat-spinner-32 Gemfile
Octocat-spinner-32 README.md
Octocat-spinner-32 Rakefile
Octocat-spinner-32 trusted_attributes.gemspec
README.md

Trusted Attributes

This module adds the attributes method to controllers which makes it possible to do mass assignment, while making sure that only trusted attributes are updated. In effect it moves mass assignment protection to the controller.

Add the gem to your Gemfile:

gem "trusted_attributes"

Include it in your application controller:

class ApplicationController < ActionController::Base
  include TrustedAttributes
end

Whenever you would normally assign a hash from params, use attributes instead. For example:

def create
  @realm = Realm.new(attributes)
  if @realm.save
    redirect_to @realm
  else
    render :new
  end
end

To mark attributes as trusted, you can use the trust class method:

class RealmsController < ApplicationController
  trust :name, :max_data, :max_time

  def create
    @realm = Realm.new(attributes)
    ...
  end
end

You can also use the instance method trust, for example if different users have access to different attributes:

class RealmsController < ApplicationController
  trust :name, :max_data, :max_time

  def create
    trust :global if current_user.admin?
    @realm = Realm.new(attributes)
    ...
  end
end

When not running in production mode, an error will be raised when non trusted attributes are sent, in production mode, the non trusted attributes are silently ignored.

License

(The MIT License)

Copyright (c) 2012 Ivan Navarrete and Jonas Nicklas

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Vimium has been updated to 1.32.x

Something went wrong with that request. Please try again.