X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/2cf224f4aad01040c97079273b4624acb0bd3874..6ed742bfddd372f0424eb61ce45bec1a2d737433:/code/view.py

diff --git a/code/view.py b/code/view.py
index a6fa610..1b586ef 100644
--- a/code/view.py
+++ b/code/view.py
@@ -10,7 +10,8 @@ from invirt.config import structs as config
 from webcommon import State
 
 class MakoHandler(cherrypy.dispatch.LateParamPageHandler):
-    """Callable which sets response.body."""
+    """Callable which processes a dictionary, returning the rendered
+    body."""
     
     def __init__(self, template, next_handler, content_type='text/html; charset=utf-8'):
         self.template = template
@@ -52,8 +53,6 @@ class MakoLoader(object):
                  imports=[]):
         cherrypy.request.lookup = lookup = self.get_lookup(directories, module_directory,
                                                            collection_size, imports)
-        
-        # Replace the current handler.
         cherrypy.request.template = t = lookup.get_template(filename)
         cherrypy.request.handler = MakoHandler(t, cherrypy.request.handler, content_type)
 
@@ -102,7 +101,7 @@ cherrypy.tools.jsonify = cherrypy.Tool('before_finalize', jsonify_tool_callback,
 
 def require_login():
     """If the user isn't logged in, raise 403 with an error."""
-    if not cherrypy.request.login:
+    if cherrypy.request.login is False:
         raise cherrypy.HTTPError(403,
             "You are not authorized to access that resource")
 
@@ -117,17 +116,26 @@ def require_POST():
 cherrypy.tools.require_POST = cherrypy.Tool('on_start_resource', require_POST, priority=150)
 
 def remote_user_login():
-    """Get the current user based on the SSL or GSSAPI environment variables"""
+    """Get the current user based on the SSL or GSSAPI environment
+variables and store it in the request object's login variable. This
+conforms to the CherryPy API:
+http://www.cherrypy.org/wiki/RequestObject#login
+
+If the user is logged in successfully, cherrypy.request.login is set
+to the username. If the user failed to log in, cherrypy.request.login
+is set to False. If the user did not attempt authentication,
+cherrypy.request.login is set to None."""
     environ = cherrypy.request.wsgi_environ
     user = environ.get('REMOTE_USER')
     if user is None:
-        cherrypy.request.login = None
         return
+    else:
+        cherrypy.request.login = None # clear what cherrypy put there
 
     if environ.get('AUTH_TYPE') == 'Negotiate':
         # Convert the krb5 principal into a krb4 username
         if not user.endswith('@%s' % config.kerberos.realm):
-            cherrypy.request.login = None
+            cherrypy.request.login = False # failed to login
         else:
             cherrypy.request.login = user.split('@')[0].replace('/', '.')
     else: