app/controllers/user_sessions_controller.rb

   1 class UserSessionsController < ApplicationController
   2   before_filter :login_required, :only => [ :destroy ]
   3
   4   skip_before_filter :uncamelcase_params_hash_keys
   5   skip_before_filter :find_object_by_uuid
   6
   7   respond_to :html
   8
   9   # omniauth callback method
  10   def create
  11     omniauth = env['omniauth.auth']
  12     #logger.debug "+++ #{omniauth}"
  13
  14     identity_url_ok = (omniauth['info']['identity_url'].length > 0) rescue false
  15     unless identity_url_ok
  16       # Whoa. This should never happen.
  17
  18       @title = "UserSessionsController.create: omniauth object missing/invalid"
  19       @body = "omniauth.pretty_inspect():\n\n#{omniauth.pretty_inspect()}"
  20
  21       view_context.fatal_error(@title,@body)
  22       return redirect_to openid_login_error_url
  23     end
  24
  25     user = User.find_by_identity_url(omniauth['info']['identity_url'])
  26     if not user
  27       # New user registration
  28       user = User.new(:email => omniauth['info']['email'],
  29                       :first_name => omniauth['info']['first_name'],
  30                       :last_name => omniauth['info']['last_name'],
  31                       :identity_url => omniauth['info']['identity_url'])
  32     else
  33       user.email = omniauth['info']['email']
  34       user.first_name = omniauth['info']['first_name']
  35       user.last_name = omniauth['info']['last_name']
  36     end
  37
  38     # prevent OrvosModel#before_create and _update from throwing
  39     # "unauthorized":
  40     Thread.current[:user] = user
  41
  42     user.save!
  43
  44     omniauth.delete('extra')
  45
  46     # Give the authenticated user a cookie for direct API access
  47     session[:user_id] = user.id
  48     session[:api_client_uuid] = nil
  49     session[:api_client_trusted] = true # full permission to see user's secrets
  50
  51     @redirect_to = root_path
  52     if params.has_key?(:return_to)
  53       return send_api_token_to(params[:return_to], user)
  54     end
  55     redirect_to @redirect_to
  56   end
  57
  58   # Omniauth failure callback
  59   def failure
  60     flash[:notice] = params[:message]
  61   end
  62
  63   # logout - Clear our rack session BUT essentially redirect to the provider
  64   # to clean up the Devise session from there too !
  65   def logout
  66     session[:user_id] = nil
  67
  68     flash[:notice] = 'You have logged off'
  69     return_to = params[:return_to] || root_url
  70     redirect_to "#{CUSTOM_PROVIDER_URL}/users/sign_out?redirect_uri=#{CGI.escape return_to}"
  71   end
  72
  73   # login - Just bounce to /auth/joshid. The only purpose of this function is
  74   # to save the return_to parameter (if it exists; see the application
  75   # controller). /auth/joshid bypasses the application controller.
  76   def login
  77     if current_user and params[:return_to]
  78       # Already logged in; just need to send a token to the requesting
  79       # API client.
  80       #
  81       # FIXME: if current_user has never authorized this app before,
  82       # ask for confirmation here!
  83
  84       send_api_token_to(params[:return_to], current_user)
  85     elsif params[:return_to]
  86       redirect_to "/auth/joshid?return_to=#{CGI.escape(params[:return_to])}"
  87     else
  88       redirect_to "/auth/joshid"
  89     end
  90   end
  91
  92   def send_api_token_to(callback_url, user)
  93     # Give the API client a token for making API calls on behalf of
  94     # the authenticated user
  95
  96     # Stub: automatically register all new API clients
  97     api_client_url_prefix = callback_url.match(%r{^.*?://[^/]+})[0] + '/'
  98     api_client = ApiClient.find_or_create_by_url_prefix(api_client_url_prefix)
  99
 100     api_client_auth = ApiClientAuthorization.
 101       new(user: user,
 102           api_client: api_client,
 103           created_by_ip_address: remote_ip)
 104     api_client_auth.save!
 105
 106     if callback_url.index('?')
 107       callback_url << '&'
 108     else
 109       callback_url << '?'
 110     end
 111     callback_url << 'api_token=' << api_client_auth.api_token
 112     redirect_to callback_url
 113   end
 114 end