怎样在你的 ruby on rails 网站中加入 OpenID 登录功能

my OS is ubuntu7.10:
1.cd to the project directory

2.

sudo gem install ruby-openid

3.

sudo ruby script/plugin install open_id_authentication

4.rake -T open_id (to see the rake command)

5.

rake open_id_authentication:db:create

6.in the open-id migrate add these lines:
   

add_column :users, :identity_url, :string 

(in self.up)
  

remove_column :users, :identity_url

(in self.down)

7.run the migrate

8.add a line in routes.rb:

    map.open_id_complete 'session', :controller => "session", :action => "create",:requirements => { :method => :get }

VERY VERY IMPORTENT!!!
make sure the map.open_id_complete line above the map.resource :session line;(IT waste lots of my time!!!)

9:add a :identity_url in user.rb and it will look like:

    attr_accessible :login, :email, :password, :password_confirmation, :identity_url

10.add some line in session/new.rhtml:

  <p>
    <label for="openid_url">OpenID URL</label><br/>
    <%=text_field_tag "openid_url"%>
  </p>

11.:
# This controller handles the login/logout function of the site.

class SessionController < ApplicationController
  # Be sure to include AuthenticationSystem in Application Controller instead
  # include AuthenticatedSystem

  # render new.rhtml
  layout "welcome"
  
  def new
  end

  def create
    if using_open_id?
      open_id_authentication(params[:openid_url])
    else
      password_authentication(params[:login], params[:password])
    end
  end
  
  def destroy
    self.current_user.forget_me if logged_in?
    cookies.delete :auth_token
    reset_session
    flash[:notice] = "你已经登录了."
    redirect_back_or_default('/')
  end
  
  protected
  
  def open_id_authentication(openid_url)
    authenticate_with_open_id(openid_url, :required => [:nickname, :email]) do |result, identity_url, registration|
      if result.successful?
        @user = User.find_or_initialize_by_identity_url(identity_url)
        if @user.new_record?
          @user.login = registration['nickname']
          @user.email = registration['email']
          @user.save(false)
        end
        self.current_user = @user
        successful_login
      else
        failed_login result.message
      end
    end
  end
  
  def password_authentication(login, password)
    self.current_user = User.authenticate(login, password)
    if logged_in?
      successful_login
    else
      failed_login
    end
  end
  
  def failed_login(message = "Authentication failed.")
    flash.now[:error] = message
    render :action => 'new'
  end

  def successful_login
    if params[:remember_me] == "1"
      self.current_user.remember_me
      cookies[:auth_token] = { :value => self.current_user.remember_token , :expires => self.current_user.remember_token_expires_at }
    end
    redirect_back_or_default('/tools')
    flash[:notice] = "登录成功"
  end

  
end

12.add some css:

/* embeds the openid image in the text field */
input#openid_url {
   background: url(http://openid.net/login-bg.gif) no-repeat;
   background-color: #fff;
   background-position: 0 50%;
   color: #000;
   padding-left: 18px;
} 

sfct
好文，自从beast看到openID也看了一些介绍
能看到哥们具体step by step，呵呵，嗲