Skeleton of OpenID, more changes coming...

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+# (c) 2005 Ben Bangert
+# This module is part of the Python Paste Project and is released under
+# the MIT License: http://www.opensource.org/licenses/mit-license.php
+"""
+OpenID Authentication (Consumer)
+
+OpenID is a distributed authentication system for single sign-on originally
+developed at/for LiveJournal.com.
+
+    http://openid.net/
+    
+URL. You can have multiple identities in the same way you can have multiple
+URLs. All OpenID does is provide a way to prove that you own a URL (identity). 
+And it does this without passing around your password, your email address, or 
+anything you don't want it to. There's no profile exchange component at all: 
+your profiile is your identity URL, but recipients of your identity can then 
+learn more about you from any public, semantically interesting documents 
+linked thereunder (FOAF, RSS, Atom, vCARD, etc.).
+
+``Note``: paste.auth.openid requires installation of the Python-OpenID
+libraries::
+
+    http://www.openidenabled.com/
+"""
+
+import cgi
+import urlparse
+
+def quoteattr(s):
+    qs = cgi.escape(s, 1)
+    return '"%s"' % (qs,)
+
+# You may need to manually add the openid package into your
+# python path if you don't have it installed with your system python.
+# If so, uncomment the line below, and change the path where you have
+# Python-OpenID.
+# sys.path.append('/path/to/openid/')
+
+from openid.store import filestore
+from openid.consumer import consumer
+from openid.oidutil import appendArgs
+
+def AuthOpenIDHandler(application, data_store_path, login_url='/'):
+    """
+    This middleware implements OpenID Consumer behavior to authenticate a
+    URL against an OpenID Server.
+    """
+    def auth_application(environ, start_response):
+        store = filestore.FileOpenIDStore(data_store_path)
+        oidconsumer = consumer.OpenIDConsumer(store)
+        
+        return application(environ, start_response)
+    return auth_application
+
+middleware = AuthOpenIDHandler