From 0fd9b02c8052274413a346877f0438fff04514ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Katja=20S=C3=BCss?= <ksuess@Katjas-iMac.local>
Date: Tue, 20 Jun 2017 15:16:19 +0200
Subject: [PATCH] Email validation

---
 CHANGES.rst                                   |  2 +-
 plone/app/discussion/interfaces.py            | 10 +++++++--
 .../tests/functional_test_comments.txt        | 21 +++++++++++++++++++
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index 200d2b8..3e821e4 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -10,7 +10,7 @@ Breaking changes:
 
 New features:
 
-- *add item here*
+- Email validation [ksuess]
 
 Bug fixes:
 
diff --git a/plone/app/discussion/interfaces.py b/plone/app/discussion/interfaces.py
index a8d232c..ead8040 100644
--- a/plone/app/discussion/interfaces.py
+++ b/plone/app/discussion/interfaces.py
@@ -1,12 +1,18 @@
 # -*- coding: utf-8 -*-
 """Interfaces for plone.app.discussion
 """
+from plone import api
 from plone.app.discussion import _
 from zope import schema
 from zope.component.interfaces import IObjectEvent
-from zope.interface import Interface
+from zope.interface import Interface, Invalid
 from zope.interface.common.mapping import IIterableMapping
 
+def isEmail(value):
+    reg_tool = api.portal.get_tool(name='portal_registration')
+    if not (value and reg_tool.isValidEmail(value)):
+        raise Invalid(_("Invalid email address."))
+    return True
 
 class IConversation(IIterableMapping):
     """A conversation about a content object.
@@ -150,7 +156,7 @@ class IComment(Interface):
 
     # for anonymous comments only, set to None for logged in comments
     author_name = schema.TextLine(title=_(u'Name'), required=False)
-    author_email = schema.TextLine(title=_(u'Email'), required=False)
+    author_email = schema.TextLine(title=_(u'Email'), required=False, constraint=isEmail)
 
     title = schema.TextLine(title=_(u'label_subject',
                                     default=u'Subject'))
diff --git a/plone/app/discussion/tests/functional_test_comments.txt b/plone/app/discussion/tests/functional_test_comments.txt
index e47a5b1..c9fe2bd 100644
--- a/plone/app/discussion/tests/functional_test_comments.txt
+++ b/plone/app/discussion/tests/functional_test_comments.txt
@@ -514,6 +514,27 @@ Try again.
     >>> 'Your comment awaits moderator approval' in unprivileged_browser.contents
     True
 
+Email is being validated.
+
+    >>> unprivileged_browser.getControl(name='form.widgets.text').value = "This is an anonymous comment with email"
+    >>> unprivileged_browser.getControl(name='form.widgets.author_email').value = "abc"
+    >>> unprivileged_browser.getControl(name='form.buttons.comment').click()
+    >>> 'Invalid email address.' in unprivileged_browser.contents
+    True
+    >>> 'Your comment awaits moderator approval' in unprivileged_browser.contents
+    False
+
+Check again with valid email.
+
+    >>> unprivileged_browser.getControl(name='form.widgets.text').value = "This is an anonymous comment with email"
+    >>> unprivileged_browser.getControl(name='form.widgets.author_email').value = "email@example.org"
+    >>> unprivileged_browser.getControl(name='form.buttons.comment').click()
+    >>> 'Invalid email address.' in unprivileged_browser.contents
+    False
+    >>> 'Your comment awaits moderator approval' in unprivileged_browser.contents
+    True
+
+
 Posting as member should still work.  Especially it should not
 complain about missing input for an invisible author_email field.
 Login as user 'jim'.