Removes the fat ruby-openid gem. Simply use 'gem install ruby-openid' to enable openid support.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2458 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/account_controller.rb

@@ -46,7 +46,7 @@ class AccountController < ApplicationController
       self.logged_user = nil
     else
       # Authenticate user
-      if using_open_id? && Setting.openid?
+      if Setting.openid? && using_open_id?
         open_id_authenticate(params[:openid_url])
       else
         password_authentication

app/models/setting.rb

@@ -140,6 +140,10 @@ class Setting < ActiveRecord::Base
     per_page_options.split(%r{[\s,]}).collect(&:to_i).select {|n| n > 0}.sort
   end
   
+  def self.openid?
+    Object.const_defined?(:OpenID) && self['openid'].to_s == '1'
+  end
+  
   # Checks if settings have changed since the values were read
   # and clears the cache hash if it's the case
   # Called once per request

app/views/settings/_authentication.rhtml

@@ -19,7 +19,7 @@
 <%= check_box_tag 'settings[lost_password]', 1, Setting.lost_password? %><%= hidden_field_tag 'settings[lost_password]', 0 %></p>
 
 <p><label><%= l(:setting_openid) %></label>
-<%= check_box_tag 'settings[openid]', 1, Setting.openid? %><%= hidden_field_tag 'settings[openid]', 0 %></p>
+<%= check_box_tag 'settings[openid]', 1, Setting.openid?, :disabled => !Object.const_defined?(:OpenID) %><%= hidden_field_tag 'settings[openid]', 0 %></p>
 </div>
 
 <div style="float:right;">