Added LoginTicket to URL API so that client's login_to_service can re…

…trieve a login ticket

lib/casserver/server.rb

@@ -550,6 +550,37 @@ def self.init_database!
         render @template_engine, :login
       end
     end
+
+
+    # Handler for obtaining login tickets.
+    # This is useful when you want to build a custom login form located on a 
+    # remote server. Your form will have to include a valid login ticket
+    # value, and this can be fetched from the CAS server using the POST handler.
+
+    get "#{uri_path}/loginTicket" do
+      CASServer::Utils::log_controller_action(self.class, params)
+
+      $LOG.error("Tried to use login ticket dispenser with get method!")
+
+      status 422
+
+      "To generate a login ticket, you must make a POST request."
+    end
+
+
+    # Renders a page with a login ticket (and only the login ticket)
+    # in the response body.
+    post "#{uri_path}/loginTicket" do
+      CASServer::Utils::log_controller_action(self.class, params)
+
+      lt = generate_login_ticket
+
+      $LOG.debug("Dispensing login ticket #{lt} to host #{(@env['HTTP_X_FORWARDED_FOR'] || @env['REMOTE_HOST'] || @env['REMOTE_ADDR']).inspect}")
+
+      @lt = lt.ticket
+
+      @lt
+    end
 
 
 		# 2.4