Raise an unauthorized error when authenticated users try to post a comment on a content object that has discussion disabled. Thanks to vincentfrentin for reporting this!

svn path=/plone.app.discussion/trunk/; revision=39627

CHANGES.txt

@@ -4,6 +4,11 @@ Changelog
 1.0b7 (unreleased)
 ------------------
 
+* Raise an unauthorized error when authenticated users try to post a comment
+  on a content object that has discussion disabled. Thanks to vincentfrentin
+  for reporting this.
+  [timo]
+  
 * Czech translation added.
   [naro]
 

plone/app/discussion/browser/comments.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 from Acquisition import aq_inner
 
+from AccessControl import Unauthorized
 from AccessControl import getSecurityManager
 
 from datetime import datetime
@@ -108,11 +109,13 @@ class CommentForm(extensible.ExtensibleForm, form.Form):
         author_email = u""
         #author_notification = None
 
-        # Captcha check for anonymous users (if Captcha is enabled)
+        # Captcha check for anonymous users (if Captcha is enabled and 
+        # anonymous commenting is allowed)
         registry = queryUtility(IRegistry)
         settings = registry.forInterface(IDiscussionSettings)
         portal_membership = getToolByName(self.context, 'portal_membership')
         if settings.captcha != 'disabled' and \
+        settings.anonymous_comments and \
         portal_membership.isAnonymousUser():
             if not 'captcha' in data:
                 data['captcha'] = u""
@@ -123,13 +126,13 @@ class CommentForm(extensible.ExtensibleForm, form.Form):
                                        None)
             captcha.validate(data['captcha'])
 
+        # Fetch data from request
         if 'title' in data:
             title = data['title']
         if 'text' in data:
             text = data['text']
         if 'author_name' in data:
             author_name = data['author_name']
-
         if 'author_email' in data:
             author_email = data['author_email']
         #if 'author_notification' in data:
@@ -138,6 +141,11 @@ class CommentForm(extensible.ExtensibleForm, form.Form):
         # The add-comment view is called on the conversation object
         conversation = IConversation(self.__parent__)
         
+        # Check if conversation is enabled on this content object
+        if not conversation.enabled():
+            raise Unauthorized, "Discussion is not enabled for this content\
+                                 object."
+
         if data['in_reply_to']:
             # Fetch the comment we want to reply to
             conversation_to_reply_to = conversation.get(data['in_reply_to'])
@@ -150,13 +158,14 @@ class CommentForm(extensible.ExtensibleForm, form.Form):
 
         portal_membership = getToolByName(self.context, 'portal_membership')
 
-        if portal_membership.isAnonymousUser():
+        if portal_membership.isAnonymousUser() and \
+        settings.anonymous_comments:
             comment.creator = None
             comment.author_name = author_name
             comment.author_email = author_email
             #comment.author_notification = author_notification
             comment.creation_date = comment.modification_date = datetime.now()
-        else:
+        elif not portal_membership.isAnonymousUser():
             member = portal_membership.getAuthenticatedMember()
             comment.creator = member.id
             comment.author_username = member.getUserName()
@@ -164,6 +173,9 @@ class CommentForm(extensible.ExtensibleForm, form.Form):
             comment.author_email = member.getProperty('email')
             #comment.author_notification = comment.author_notification
             comment.creation_date = comment.modification_date = datetime.now()
+        else:
+            raise Unauthorized, "Anonymous user tries to post a comment, but \
+                                 anonymous commenting is disabled."
         
         # Check if the added comment is a reply to an existing comment
         # or just a regular reply to the content object.

plone/app/discussion/tests/test_comments_viewlet.py

@@ -2,6 +2,8 @@
 import unittest
 from datetime import datetime
 
+from AccessControl import Unauthorized
+
 from Acquisition import Implicit
         
 from zope.component import createObject, queryUtility
@@ -23,10 +25,14 @@ from zope.component import getMultiAdapter
 from plone.registry.interfaces import IRegistry
 
 from Products.CMFCore.utils import getToolByName
+
 from Products.CMFPlone.tests import dummy
+
 from Products.Five.testbrowser import Browser
+
 from Products.PloneTestCase.ptc import PloneTestCase
 from Products.PloneTestCase.ptc import FunctionalTestCase
+from Products.PloneTestCase.setup import portal_owner, default_password
         
 from plone.app.discussion.comment import Comment
 from plone.app.discussion.browser.comments import CommentsViewlet
@@ -43,16 +49,19 @@ class TestCommentForm(PloneTestCase):
         self.loginAsPortalOwner()
         typetool = self.portal.portal_types
         typetool.constructContent('Document', self.portal, 'doc1')
-        self.portal_discussion = getToolByName(self.portal, 
+        self.dtool = getToolByName(self.portal, 
                                    'portal_discussion', 
                                     None)
-        self.membership_tool = getToolByName(self.folder, 'portal_membership')
+        self.dtool.overrideDiscussionFor(self.portal.doc1, False)
+        self.mtool = getToolByName(self.folder, 'portal_membership', None)
         self.memberdata = self.portal.portal_memberdata
         self.request = self.app.REQUEST
         self.context = getattr(self.portal, 'doc1')
-        self.viewlet = CommentsViewlet(self.context, self.request, None, None)
         
     def test_add_comment(self):
+        # Allow discussion
+        self.dtool.overrideDiscussionFor(self.portal.doc1, True)
+        self.viewlet = CommentsViewlet(self.context, self.request, None, None)
 
         def make_request(form={}):
             request = TestRequest()
@@ -66,6 +75,7 @@ class TestCommentForm(PloneTestCase):
                        factory=CommentForm,
                        name=u"comment-form")
         
+        # The form should return errors if the two required fields are empty
         request = make_request(form={})
 
         commentForm = getMultiAdapter((self.context, request), 
@@ -76,7 +86,7 @@ class TestCommentForm(PloneTestCase):
         self.assertEquals(len(errors), 2)
         self.failIf(commentForm.handleComment(commentForm, "foo"))
         
-
+        # The form should return an error if the comment text field is empty
         request = make_request(form={'form.widgets.text': 'foo'})
 
         commentForm = getMultiAdapter((self.context, request), 
@@ -85,8 +95,10 @@ class TestCommentForm(PloneTestCase):
         data, errors = commentForm.extractData()
 
         self.assertEquals(len(errors), 1)
+        self.failIf(commentForm.handleComment(commentForm, "foo"))
                 
-
+        # The form is submitted successfully, if all required fields are 
+        # filled out
         request = make_request(form={'form.widgets.title': 'foo',
                                      'form.widgets.text': 'bar'})
 
@@ -99,6 +111,76 @@ class TestCommentForm(PloneTestCase):
         self.failIf(commentForm.handleComment(commentForm, "foo"))
         
 
+    def test_can_not_add_comments_if_discussion_is_not_allowed(self):
+        """Make sure that comments can't be posted if discussion is disabled.
+        """
+        
+        # Discussion is disabled by default
+        
+        def make_request(form={}):
+            request = TestRequest()
+            request.form.update(form)
+            alsoProvides(request, IFormLayer)
+            alsoProvides(request, IAttributeAnnotatable)
+            return request
+        
+        provideAdapter(adapts=(Interface, IBrowserRequest),
+                       provides=Interface,
+                       factory=CommentForm,
+                       name=u"comment-form")
+        
+        request = make_request(form={'form.widgets.title': 'foo',
+                                     'form.widgets.text': 'bar'})
+
+        commentForm = getMultiAdapter((self.context, request), 
+                                      name=u"comment-form")
+        commentForm.update()
+        data, errors = commentForm.extractData()
+        
+        # No form errors, but raise unauthorized because discussion is not
+        # allowed
+        self.assertEquals(len(errors), 0)
+        self.assertRaises(Unauthorized,
+                          commentForm.handleComment,
+                          commentForm,
+                          "foo")
+                                
+    def test_add_comment_as_anonymous(self):
+        """Make sure that anonymous users can't post comments if anonymous
+           comments are disabled.
+        """
+        
+        # Anonymous comments are disabled by default
+        
+        self.logout()
+        
+        def make_request(form={}):
+            request = TestRequest()
+            request.form.update(form)
+            alsoProvides(request, IFormLayer)
+            alsoProvides(request, IAttributeAnnotatable)
+            return request
+        
+        provideAdapter(adapts=(Interface, IBrowserRequest),
+                       provides=Interface,
+                       factory=CommentForm,
+                       name=u"comment-form")
+        
+        request = make_request(form={'form.widgets.title': 'foo',
+                                     'form.widgets.text': 'bar'})
+
+        commentForm = getMultiAdapter((self.context, request), 
+                                      name=u"comment-form")
+        commentForm.update()
+        data, errors = commentForm.extractData()
+        
+        self.assertEquals(len(errors), 0)
+        self.assertRaises(Unauthorized,
+                          commentForm.handleComment,
+                          commentForm,
+                          "foo")
+
+
 class TestCommentsViewletIntegration(FunctionalTestCase):
 
     layer = DiscussionLayer
@@ -108,8 +190,6 @@ class TestCommentsViewletIntegration(FunctionalTestCase):
         portal_url = self.portal.absolute_url()
         browser.handleErrors = False
 
-        from Products.PloneTestCase.setup import portal_owner, default_password
-
         browser.open(portal_url + '/login_form')
         browser.getControl(name='__ac_name').value = portal_owner
         browser.getControl(name='__ac_password').value = default_password
@@ -151,7 +231,7 @@ class TestCommentsViewlet(PloneTestCase):
         self.portal_discussion = getToolByName(self.portal, 
                                                'portal_discussion', 
                                                None)
-        self.membership_tool = getToolByName(self.folder, 'portal_membership')
+        self.mtool = getToolByName(self.folder, 'portal_membership')
         self.memberdata = self.portal.portal_memberdata
         request = self.app.REQUEST
         context = getattr(self.portal, 'doc1')
@@ -265,7 +345,7 @@ class TestCommentsViewlet(PloneTestCase):
     def test_get_commenter_portrait(self):
 
         # Add a user with a member image
-        self.membership_tool.addMember('jim', 'Jim', ['Member'], [])
+        self.mtool.addMember('jim', 'Jim', ['Member'], [])
         self.memberdata._setPortrait(Image(id='jim', 
                                            file=dummy.File(),
                                            title=''), 'jim')
@@ -298,7 +378,7 @@ class TestCommentsViewlet(PloneTestCase):
     def test_get_commenter_portrait_without_userimage(self):
 
         # Create a user without a user image
-        self.membership_tool.addMember('jim', 'Jim', ['Member'], [])
+        self.mtool.addMember('jim', 'Jim', ['Member'], [])
 
         # Add a conversation with a comment
         conversation = IConversation(self.portal.doc1)