made service#invite redirect to the right place

app/controllers/services_controller.rb

@@ -53,11 +53,15 @@ class ServicesController < ApplicationController
   def inviter
     @uid = params[:uid]
     @subject = "Join me on DIASPORA*"
-    @message = ""
 
-    current_user.invite_user(aspect_id, :service => params[:provider],
-                             :identifier => params[:uid])
-    
-    redirect_to "http://facebook.com"
+    invited_user = current_user.invite_user(params[:aspect_id], params[:provider], params[:uid])
+
+    @message = <<MSG
+    Diaspora* is the social network that puts you in control of your information. You decide what you'd like to share, and with whom. You retain full ownership of all your information, including friend lists, messages, photos, and profile details.
+
+    Click here to accept your invitation:
+    #{accept_invitation_url(invited_user, :invitation_token => invited_user.invitation_token)}
+MSG
+    redirect_to "https://www.facebook.com/?compose=1&id=#{@uid}&subject=#{@subject}&message=#{@message}&sk=messages"
   end
 end

app/models/invitation.rb

@@ -50,7 +50,7 @@ class Invitation < ActiveRecord::Base
 
   def self.create_invitee(opts = {})
     invitee = new_or_existing_user_by_service_and_identifier(opts[:service], opts[:identifier])
-    return invitee unless opts[:service] == 'email' && opts[:identifier].match(Devise.email_regexp)
+    return invitee if opts[:service] == 'email' && !opts[:identifier].match(Devise.email_regexp)
     invitee.invites = opts[:invites] || 0
     if invitee.new_record?
       invitee.errors.clear

spec/controllers/services_controller_spec.rb

@@ -96,7 +96,6 @@ describe ServicesController do
   describe '#invite' do
     
     before do
-      pending
       @service1 = Services::Facebook.create(:provider => 'facebook')
       @uid = "abc"
       @invite_params = {:provider => @service1.provider, :uid => @uid, :aspect_id => @user.aspects.first.id}
@@ -110,18 +109,17 @@ describe ServicesController do
 
     it 'sets the subject' do
       put :inviter, @invite_params
-      assigns[:@subject].should_not be_nil
+      assigns[:subject].should_not be_nil
     end
 
     it 'sets a message containing the invitation link' do
       put :inviter, @invite_params
-      assigns[:@message].should include(User.last.invitation_token)
+      assigns[:message].should include(User.last.invitation_token)
     end
 
     it 'redirects to a prefilled facebook message url' do 
       put :inviter, @invite_params
-      response.should be_redirect
-      response.should have_text(/http:\/\/www\.facebook\.com\/\?compose=1&id=.*&subject=.*&message=.*&sk=messages/)
+      response.location.should match(/https:\/\/www\.facebook\.com\/\?compose=1&id=.*&subject=.*&message=.*&sk=messages/)
     end
 
   end