Module: ActionController::HttpAuthentication::Basic

Extended by:
Basic
Included in:
Basic
Defined in:
actionpack/lib/action_controller/metal/http_authentication.rb

Overview

Makes it dead easy to do HTTP Basic authentication.

Simple Basic example

 class PostsController < ApplicationController
   http_basic_authenticate_with name: "dhh", password: "secret", except: :index

   def index
     render plain: "Everyone can see me!"
   end

   def edit
     render plain: "I'm only accessible if you know the password"
   end
end

Advanced Basic example

Here is a more advanced Basic example where only Atom feeds and the XML API is protected by HTTP authentication, the regular HTML interface is protected by a session approach:

class ApplicationController < ActionController::Base
  before_action :set_account, :authenticate

  protected
    def 
      @account = Account.find_by(url_name: request.subdomains.first)
    end

    def authenticate
      case request.format
      when Mime::XML, Mime::ATOM
        if user = authenticate_with_http_basic { |u, p| @account.users.authenticate(u, p) }
          @current_user = user
        else
          request_http_basic_authentication
        end
      else
        if session_authenticated?
          @current_user = @account.users.find(session[:authenticated][:user_id])
        else
          redirect_to() and return false
        end
      end
    end
end

In your integration tests, you can do something like this:

def test_access_granted_from_xml
  get(
    "/notes/1.xml", nil,
    'HTTP_AUTHORIZATION' => ActionController::HttpAuthentication::Basic.encode_credentials(users(:dhh).name, users(:dhh).password)
  )

  assert_equal 200, status
end

Defined Under Namespace

Modules: ControllerMethods

Instance Method Summary collapse

Instance Method Details

#auth_param(request) ⇒ Object 



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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 114

def auth_param(request)
  request.authorization.split(' ', 2).second
end

#auth_scheme(request) ⇒ Object 



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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 110

def auth_scheme(request)
  request.authorization.split(' ', 2).first
end

#authenticate(request, &login_procedure) ⇒ Object 



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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 92

def authenticate(request, &)
  if has_basic_credentials?(request)
    .call(*user_name_and_password(request))
  end
end

#authentication_request(controller, realm) ⇒ Object 



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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 122

def authentication_request(controller, realm)
  controller.headers["WWW-Authenticate"] = %(Basic realm="#{realm.gsub(/"/, "")}")
  controller.status = 401
  controller.response_body = "HTTP Basic: Access denied.\n"
end

#decode_credentials(request) ⇒ Object 



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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 106

def decode_credentials(request)
  ::Base64.decode64(auth_param(request) || '')
end

#encode_credentials(user_name, password) ⇒ Object 



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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 118

def encode_credentials(user_name, password)
  "Basic #{::Base64.strict_encode64("#{user_name}:#{password}")}"
end

#has_basic_credentials?(request) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 98

def has_basic_credentials?(request)
  request.authorization.present? && (auth_scheme(request) == 'Basic')
end

#user_name_and_password(request) ⇒ Object 



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# File 'actionpack/lib/action_controller/metal/http_authentication.rb', line 102

def user_name_and_password(request)
  decode_credentials(request).split(':', 2)
end