[Zope3-checkins] SVN: Zope3/trunk/src/zope/app/pas/ Added class FormChallenge to browserplugins.py (not yet functional)

[Helmut Merz]

Log message for revision 27936:
  Added class FormChallenge to browserplugins.py (not yet functional)


Changed:
  U   Zope3/trunk/src/zope/app/pas/browserplugins.py
  U   Zope3/trunk/src/zope/app/pas/tests.py


-=-
Modified: Zope3/trunk/src/zope/app/pas/browserplugins.py
===================================================================
--- Zope3/trunk/src/zope/app/pas/browserplugins.py	2004-10-10 19:27:22 UTC (rev 27935)
+++ Zope3/trunk/src/zope/app/pas/browserplugins.py	2004-10-10 19:34:28 UTC (rev 27936)
@@ -17,44 +17,50 @@
 $Id$
 """
 
-import zope.interface
+from zope.interface import implements
+from persistent import Persistent
+from zope.app.component import hooks
+from zope.app.container.contained import Contained
+from zope.app.traversing.browser.interfaces import IAbsoluteURL
+from zope.app import zapi
 from zope.app.session.interfaces import ISession
-from zope.app.pas import interfaces
 
-class SessionExtractor:
-    """ session-based credential extractor
-    """
-    zope.interface.implements(interfaces.IExtractionPlugin)
+from zope.app.pas.interfaces import IExtractionPlugin, IChallengePlugin
 
-    def extractCredentials(self, request):
-        """ Extract the credentials that are referenced in the
-            request by looking them up in the session.
+class SessionExtractor(Persistent, Contained):
+    """ session-based credential extractor.
 
-            >>> from zope.app.session.session import RAMSessionDataContainer
-            >>> from zope.app.session.session import Session
-            >>> from tests import sessionSetUp, createTestRequest
+        Extract the credentials that are referenced in the
+        request by looking them up in the session.
 
-            >>> sessionSetUp(RAMSessionDataContainer)
-            >>> se = SessionExtractor()
+        >>> from zope.app.session.session import RAMSessionDataContainer
+        >>> from zope.app.session.session import Session
+        >>> from tests import sessionSetUp, createTestRequest
 
-            No credentials available:
-            >>> request = createTestRequest()
-            >>> se.extractCredentials(request)
+        >>> sessionSetUp(RAMSessionDataContainer)
+        >>> se = SessionExtractor()
 
-            If the session does not contain the credentials check
-            the request for form variables.
-            >>> request = createTestRequest(username='scott', password='tiger')
+        No credentials available:
+        >>> request = createTestRequest()
+        >>> se.extractCredentials(request)
 
-            >>> se.extractCredentials(request)
-            {'username': 'scott', 'password': 'tiger'}
+        If the session does not contain the credentials check
+        the request for form variables.
+        >>> request = createTestRequest(username='scott', password='tiger')
 
-            >>> request = createTestRequest()
-            >>> sessionData = Session(request)['pas_credentials']
-            >>> sessionData['username'] = 'scott'
-            >>> sessionData['password'] = 'tiger'
-            >>> se.extractCredentials(request)
-            {'username': 'scott', 'password': 'tiger'}
-        """
+        >>> se.extractCredentials(request)
+        {'username': 'scott', 'password': 'tiger'}
+
+        >>> request = createTestRequest()
+        >>> sessionData = Session(request)['pas_credentials']
+        >>> sessionData['username'] = 'scott'
+        >>> sessionData['password'] = 'tiger'
+        >>> se.extractCredentials(request)
+        {'username': 'scott', 'password': 'tiger'}
+     """
+    implements(IExtractionPlugin)
+
+    def extractCredentials(self, request):
         sessionData = ISession(request)['pas_credentials']
         if not sessionData:
             un = request.get('username', None)
@@ -68,3 +74,37 @@
                 'password': sessionData['password']}
 
 
+class FormChallenger(Persistent, Contained):
+    """ Query the user for credentials using a browser form.
+
+        First we need a request and a response.
+
+        >>> from zope.publisher.browser import TestRequest
+        >>> request = TestRequest()
+        >>> response = request.response
+
+        Then we create a FormAuthChallenger and call it.
+        >>> fc = FormChallenger()
+        >>> fc.challenge(request, response)
+        True
+
+        The response's headers should now contain the URL to redirect to.
+        >>> headers = response.getHeaders()
+        >>> headers['Location']
+        'http://127.0.0.1'
+
+    """
+
+    implements(IChallengePlugin)
+
+    def challenge(self, request, response):
+        """ Response shuold redirect to login page cause Credebtials
+            could not have been extracted.
+        """
+        site = hooks.getSite()
+        #url = zapi.getView(site, zapi.name(site), request, providing=IAbsoluteURL,
+        #                   context=site)
+        url = request.getApplicationURL()
+        response.redirect(url)
+
+        return True

Modified: Zope3/trunk/src/zope/app/pas/tests.py
===================================================================
--- Zope3/trunk/src/zope/app/pas/tests.py	2004-10-10 19:27:22 UTC (rev 27935)
+++ Zope3/trunk/src/zope/app/pas/tests.py	2004-10-10 19:34:28 UTC (rev 27936)
@@ -20,6 +20,7 @@
 from zope.testing import doctest
 from zope.app.tests import placelesssetup, ztapi
 from zope.app.event.tests.placelesssetup import getEvents
+from zope.app.tests.setup import placefulSetUp, placefulTearDown
 
 from zope.app.session.interfaces import \
         IClientId, IClientIdManager, ISession, ISessionDataContainer, \
@@ -40,6 +41,12 @@
     sdc = session_data_container_class()
     ztapi.provideUtility(ISessionDataContainer, sdc, 'pas_credentials')
 
+def formAuthSetUp(self):
+    placefulSetUp(site=True)
+
+def formAuthTearDown(self):
+    placefulTearDown()
+
 def createTestRequest(**kw):
     return TestRequest(**kw)
 
@@ -52,7 +59,9 @@
                              globs={'provideUtility': ztapi.provideUtility,
                                     'getEvents': getEvents,
                                     }),
-        doctest.DocTestSuite('zope.app.pas.browserplugins'),
+        doctest.DocTestSuite('zope.app.pas.browserplugins',
+                             setUp=formAuthSetUp,
+                             tearDown=formAuthTearDown),
         ))
 
 if __name__ == '__main__':