From 35d7743b7a48b0fbbacbc45bfcdcbae6d042270a Mon Sep 17 00:00:00 2001
From: Timo Stollenwerk <timo@zmag.de>
Date: Wed, 25 Aug 2010 09:19:28 +0000
Subject: [PATCH] Plain text to HTML transformation added for comment text

svn path=/plone.app.discussion/trunk/; revision=38898
---
 CHANGES.txt                                   |  3 ++
 plone/app/discussion/browser/comments.pt      |  2 +-
 plone/app/discussion/browser/comments.py      | 42 ++++++++++++++-----
 .../discussion/tests/test_comments_viewlet.py | 23 ++++++++++
 4 files changed, 59 insertions(+), 11 deletions(-)

diff --git a/CHANGES.txt b/CHANGES.txt
index 667d126..9c449cb 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -4,6 +4,9 @@ Changelog
 1.0b7 (unreleased)
 ------------------
 
+* Plain text to HTML transformation added for comment text.
+  [timo]
+
 * Rewrote all tal:condition in comments.pt. The authenticated user has
   the reply button and the comment form if he has the "Reply to item"
   permission And the discussion is currently allowed.
diff --git a/plone/app/discussion/browser/comments.pt b/plone/app/discussion/browser/comments.pt
index 24ea7f6..688b3ca 100644
--- a/plone/app/discussion/browser/comments.pt
+++ b/plone/app/discussion/browser/comments.pt
@@ -81,7 +81,7 @@
                 </div>
 
                 <div class="commentBody"
-                     tal:content="reply/getText" />
+                     tal:content="structure python:view.cook(reply.getText())" />
 
                 <div class="commentActions">
                     <button class="context reply-to-comment-button hide allowMultiSubmit"
diff --git a/plone/app/discussion/browser/comments.py b/plone/app/discussion/browser/comments.py
index 3903ba8..5860354 100644
--- a/plone/app/discussion/browser/comments.py
+++ b/plone/app/discussion/browser/comments.py
@@ -173,9 +173,10 @@ class CommentForm(extensible.ExtensibleForm, form.Form):
             comment_id = conversation.addComment(comment)
 
         # If a user post a comment and moderation is enabled, a message is shown
-        # to the user that his/her comment awaits moderation. If the user has manage
-        # right, he/she is redirected directly to the comment.
-        can_manage = getSecurityManager().checkPermission('Manage portal', context)
+        # to the user that his/her comment awaits moderation. If the user has 
+        # manage right, he/she is redirected directly to the comment.
+        can_manage = getSecurityManager().checkPermission('Manage portal', 
+                                                          context)
         if wf.getChainForPortalType('Discussion Item') == \
             ('comment_review_workflow',) and not can_manage:
             # Show info message when comment moderation is enabled
@@ -209,11 +210,22 @@ class CommentsViewlet(ViewletBase):
 
     # view methods
 
+    def cook(self, text):
+        transforms = getToolByName(self, 'portal_transforms')
+        targetMimetype = 'text/html'
+        mimetype = 'text/plain'
+        return transforms.convertTo(targetMimetype, 
+                                    text, 
+                                    context=self, 
+                                    mimetype=mimetype).getData()
+    
     def can_reply(self):
-        return getSecurityManager().checkPermission('Reply to item', aq_inner(self.context))
+        return getSecurityManager().checkPermission('Reply to item', 
+                                                    aq_inner(self.context))
 
     def can_manage(self):
-        return getSecurityManager().checkPermission('Manage portal', aq_inner(self.context))
+        return getSecurityManager().checkPermission('Manage portal', 
+                                                    aq_inner(self.context))
 
     def is_discussion_allowed(self):
         context = aq_inner(self.context)
@@ -268,7 +280,7 @@ class CommentsViewlet(ViewletBase):
                     r = r.copy()
                     r['workflow_status'] = workflow_status
                     yield r
-
+        
         # Return all direct replies
         if conversation.total_comments > 0:
             if workflow_actions:
@@ -288,7 +300,9 @@ class CommentsViewlet(ViewletBase):
             # return the default user image if no username is given
             return 'defaultUser.gif'
         else:
-            portal_membership = getToolByName(self.context, 'portal_membership', None)
+            portal_membership = getToolByName(self.context,
+                                              'portal_membership',
+                                              None)
             return portal_membership.getPersonalPortrait(username).absolute_url();
 
     def anonymous_discussion_allowed(self):
@@ -304,15 +318,23 @@ class CommentsViewlet(ViewletBase):
         return settings.show_commenter_image
 
     def is_anonymous(self):
-        portal_membership = getToolByName(self.context, 'portal_membership', None)
+        portal_membership = getToolByName(self.context, 
+                                          'portal_membership', 
+                                          None)
         return portal_membership.isAnonymousUser()
 
     def login_action(self):
-        return '%s/login_form?came_from=%s' % (self.navigation_root_url, url_quote(self.request.get('URL', '')),)
+        return '%s/login_form?came_from=%s' % (self.navigation_root_url, 
+                                               url_quote(self.request.get('URL', '')),)
 
     def format_time(self, time):
         # We have to transform Python datetime into Zope DateTime
         # before we can call toLocalizedTime.
         util = getToolByName(self.context, 'translation_service')
-        zope_time = DateTime(time.year, time.month, time.day, time.hour, time.minute, time.second)
+        zope_time = DateTime(time.year, 
+                             time.month, 
+                             time.day, 
+                             time.hour, 
+                             time.minute, 
+                             time.second)
         return util.toLocalizedTime(zope_time, long_format=True)
diff --git a/plone/app/discussion/tests/test_comments_viewlet.py b/plone/app/discussion/tests/test_comments_viewlet.py
index de9a948..5e7029e 100644
--- a/plone/app/discussion/tests/test_comments_viewlet.py
+++ b/plone/app/discussion/tests/test_comments_viewlet.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import unittest
 from datetime import datetime
 
@@ -106,6 +107,28 @@ class TestCommentsViewlet(PloneTestCase):
         context = getattr(self.portal, 'doc1')
         self.viewlet = CommentsViewlet(context, request, None, None)
 
+    def test_cook(self):
+        text = """First paragraph
+        
+        Second paragraph"""
+        self.assertEquals(self.viewlet.cook(text),
+                          "<p>First paragraph<br />        <br />        Second paragraph</p>")
+
+    def test_cook_no_html(self):
+        text = """<b>Got HTML?</b>"""
+        self.assertEquals(self.viewlet.cook(text),
+                          "<p>&lt;b&gt;Got HTML?&lt;/b&gt;</p>")
+    
+    def test_cook_with_no_ascii_characters(self):
+        text = """Umlaute sind ä, ö und ü."""
+        self.assertEquals(self.viewlet.cook(text), 
+                          "<p>Umlaute sind \xc3\xa4, \xc3\xb6 und \xc3\xbc.</p>")
+    
+    def test_cook_links(self):
+        text = "Go to http://www.plone.org"
+        self.assertEquals(self.viewlet.cook(text), 
+                          "<p>Go to http://www.plone.org</p>")
+        
     def test_can_reply(self):
         # Portal owner can reply
         self.failUnless(self.viewlet.can_reply())