Changes the name of the crypted password field in the database in Java

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Changes the name of the crypted password field in the database
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crypto provider:
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Changes the encryption algorithm used on the password
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ignore blank passwords:
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Allows ignoring password presence for new objects or when crypted passwords are blank
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password salt field:
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Changes the name of the password salt field in the database
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require password confirmation:
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Sets whether password confirmation is required
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transition from crypto providers:
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Can be added if you initially stored passwords with a different algorithm
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disable perishable token maintenance:
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Turns off Authlogic s internal updating of the perishable token
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perishable token valid for:
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Specifies the length of time the perishable token is valid for
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act like restful authentication:
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Set this to true if you were previously using restful authentication and want to make no code or database changes
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transition from restful authentication:
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Similar to acting like restful auth, this will resave user passwords with a new algorithm when the login
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maintain sessions:
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Tells Authlogic to use automatic session maintenance or not
session class:
If the session class cannot be inferred by the name, define it here
change single access token with password:
Allows for single access tokens to change when a user password is changed
validations scope:
Sets the scope of all validations, similar to validates uniqueness of
142 Devise
1416 Summary
Authlogic is a mature framework that s had plenty of use in the community It is highly configurable and leaves the business logic of authentication in the hands of the application developer with very little code needed to implement it It is easily extended and has a wide range of add-ons if you are looking to do different types of authentication, like OpenID or LDAP Authlogic is however tied to Active Record so if you are living on the edge with a non-relational store Authlogic will not work for you Also, if you want to write almost no code at all and use a more standard solution (that can easily be extended to persist to multiple databases)
Auth
142 Devise
Devise3 is a highly modular Rack-based authentication framework that sits on top of Warden It has a robust feature set and leverages the use of Rails generators, and you only need to use what is suitable for your application
1421 Getting Started
Add the devise gem to your project s Gemfile and bundle install Then you can generate the Devise configuration by running:
rails generate devise_install
This will create the initializer for devise, and an English version i18n YAML for Devise s messages Devise will also alert you at this step to remember to do some mandatory Rails configuration if you have not done so already This includes setting your default host for ActionMailer, setting up your root route, and making sure your flash messages will render in the application s default layout
1422 Modules
Adding authentication functionality to your models using Devise is based on the concept of adding different modules to your class, based on only what you need The available modules for you to use are:
database authenticatable:
Handles authentication of a user, as well as password encryption
3 http://githubcom/plataformatec/devise
440 confirmable:
14: Authentication
Adds the ability to require email confirmation of user accounts
lockable:
Can lock an account after n number of failed login attempts
recoverable:
Provides password reset functionality
registerable:
Alters user sign up to be handled in a registration process, along with account management
rememberable:
Provides remember me functionality
timeoutable:
Allows sessions to be expired in a configurable time frame
token authenticatable:
Allows sign in of a user based on single access tokens
trackable:
Stores login counts, timestamps, and IP addresses
validatable:
Adds customizable validations to email and password Knowing which modules you wish to include in your model is important for setting up your models, migrations, and configuration options later on
1423 Models
To set up authentication in a model, run the Devise generator for that model and then edit it For the purpose of our examples, we will use the ever-so-exiting User model again
rails generate devise User
This will create your model, a database migration, and route for your shiny new model Devise will have given some default modules to use, which you will need to alter in your migration and model if you want to use different modules In our example, we only use a subset of what is offered
142 Devise
Our resulting database migration looks like
class DeviseCreateUsers < ActiveRecord::Migration def selfup create_table(:users) do |t| tdatabase_authenticatable :null => false tconfirmable trecoverable trememberable ttimestamps end add_index :users, :email, :unique => true add_index :users, :confirmation_token, :unique => true add_index :users, :reset_password_token, :unique => true end def selfdown drop_table :users end end
Auth
We then modify our User model to mirror the modules we included in our migration
class User < ActiveRecord::Base devise \ :database_authenticatable, :confirmable, :recoverable, :rememberable attr_accessible \ :email, :password, :password_confirmation end
Now we re ready to rake db:migrate and let the magic happen
1424 Controllers
Devise provides some handy helper methods that can be used in your controllers to authenticate your model or get access to the currently signed-in person For example, if you want to restrict access in a controller you may use one of the helpers as a before_filter
class MeatProcessorController < ApplicationController before_filter :authenticate_user! end
14: Authentication
You can also access the currently signed-in user via the current user helper method, or the current session via the user session method Use user signed in if you want to check if the user had logged in without using the before_filter Thais says
The helper methods are generated dynamically, so in the case where your authenticated models are named differently, use the model name instead of user in the examples An instance of this could be with an Admin model your helpers would be current admin, admin signed in , and admin session