added open id support via omniauth

Gemfile

@@ -6,6 +6,7 @@ gem "rails", "3.0.0"
 gem "webrat", "0.7.1"
 gem "mocha", :require => false
 gem "oa-oauth", :require => "omniauth/oauth"
+gem "oa-openid", :require => "omniauth/openid"
 
 platforms :jruby do
   gem 'activerecord-jdbcsqlite3-adapter'

Gemfile.lock

@@ -47,7 +47,6 @@ GEM
     bson (1.0.4)
     bson_ext (1.0.7)
     builder (2.1.2)
-    columnize (0.3.1)
     erubis (2.6.6)
       abstract (>= 1.0.0)
     faraday (0.5.0)
@@ -56,7 +55,6 @@ GEM
       rack (~> 1.2.1)
     i18n (0.4.1)
     jdbc-sqlite3 (3.6.3.054)
-    linecache (0.43)
     mail (2.2.6.1)
       activesupport (>= 2.3.6)
       mime-types
@@ -85,6 +83,10 @@ GEM
       oa-core (= 0.1.4)
       oauth (~> 0.4.0)
       oauth2 (~> 0.0.10)
+    oa-openid (0.1.4)
+      oa-core (= 0.1.4)
+      rack-openid (~> 1.1.1)
+      ruby-openid-apps-discovery
     oauth (0.4.3)
     oauth2 (0.0.13)
       faraday (>= 0.4.1)
@@ -94,6 +96,9 @@ GEM
     rack (1.2.1)
     rack-mount (0.6.13)
       rack (>= 1.0.0)
+    rack-openid (1.1.2)
+      rack (>= 0.4)
+      ruby-openid (>= 2.0.3)
     rack-test (0.5.5)
       rack (>= 1.0)
     rails (3.0.0)
@@ -110,11 +115,9 @@ GEM
       rake (>= 0.8.4)
       thor (~> 0.14.0)
     rake (0.8.7)
-    ruby-debug (0.10.3)
-      columnize (>= 0.1)
-      ruby-debug-base (~> 0.10.3.0)
-    ruby-debug-base (0.10.3)
-      linecache (>= 0.3)
+    ruby-openid (2.1.8)
+    ruby-openid-apps-discovery (1.2.0)
+      ruby-openid (>= 2.1.7)
     sqlite3-ruby (1.3.1)
     thor (0.14.1)
     treetop (1.4.8)
@@ -142,9 +145,9 @@ DEPENDENCIES
   mongo (= 1.0.7)
   mongoid (= 2.0.0.beta.18)
   oa-oauth
+  oa-openid
   orm_adapter (~> 0.0.2)
   rails (= 3.0.0)
-  ruby-debug (>= 0.10.3)
   sqlite3-ruby
   warden (~> 1.0.0)
   webrat (= 0.7.1)

lib/devise/omniauth/url_helpers.rb

@@ -5,9 +5,9 @@ module Devise
         return unless mapping.omniauthable?
 
         class_eval <<-URL_HELPERS, __FILE__, __LINE__ + 1
-          def #{mapping.name}_omniauth_authorize_path(provider)
+          def #{mapping.name}_omniauth_authorize_path(provider, params = {})
             if Devise.omniauth_configs[provider.to_sym]
-              "/#{mapping.path}/auth/\#{provider}"
+              "/#{mapping.path}/auth/\#{provider}?\#{params.to_param}"
             else
               raise ArgumentError, "Could not find omniauth provider \#{provider.inspect}"
             end

test/omniauth/url_helpers_test.rb

@@ -34,4 +34,9 @@ class OmniAuthRoutesTest < ActionController::TestCase
       @controller.omniauth_authorize_path(:user, :github)
     end
   end
+
+  test 'should generate authorization path with params' do
+    assert_match "/users/auth/open_id?openid_url=http%3A%2F%2Fyahoo.com", 
+                  @controller.omniauth_authorize_path(:user, :open_id, :openid_url => "http://yahoo.com")
+  end
 end

test/rails_app/config/initializers/devise.rb

@@ -150,6 +150,7 @@ Devise.setup do |config|
 
   # ==> OmniAuth
   config.omniauth :facebook, 'APP_ID', 'APP_SECRET', :scope => 'email,offline_access'
+  config.omniauth :open_id
 
   # ==> Warden configuration
   # If you want to use other strategies, that are not supported by Devise, or