ZO-4687: Store our own date_last_modified instead of relying on DAV

core/docs/changelog/ZO-4687.change

@@ -0,0 +1 @@
+ZO-4687: Store our own date_last_modified instead of relying on DAV

core/pyproject.toml

@@ -64,7 +64,6 @@ dependencies = [
     "zope.copypastemove",
     "zope.deferredimport",  # undeclared by zc.form
     "zope.dottedname",
-    "zope.dublincore",
     "zope.event",
     "zope.exceptions",
     "zope.file",

core/src/zeit/cms/browser/listing.py

@@ -13,6 +13,7 @@
 from zeit.cms.i18n import MessageFactory as _
 import zeit.cms.browser.interfaces
 import zeit.cms.content.sources
+import zeit.cms.workflow.interfaces
 
 
 logger = logging.getLogger('zeit.cms.browser.listing')
@@ -41,18 +42,17 @@ def url(self):
 
     @property
     def modifiedOn(self):
-        return self._dc_date_helper('modified')
+        return self._date_helper('date_last_modified')
 
     @property
     def createdOn(self):
-        return self._dc_date_helper('created')
+        return self._date_helper('date_created')
 
-    def _dc_date_helper(self, attribute):
-        try:
-            times = zope.dublincore.interfaces.IDCTimes(self.context)
-        except TypeError:
+    def _date_helper(self, attribute):
+        modified = zeit.cms.workflow.interfaces.IModified(self.context, None)
+        if modified is None:
             return None
-        return getattr(times, attribute)
+        return getattr(modified, attribute)
 
     @property
     def type(self):

core/src/zeit/cms/browser/listing.txt

@@ -82,7 +82,7 @@ When we have local modifications the we get the third indicator. Let's try some
 >>> import zeit.connector.interfaces
 >>> import zope.component
 >>> connector = zope.component.getUtility(zeit.connector.interfaces.IConnector)
->>> connector._properties[uid][('getlastmodified', 'DAV:')] = (
+>>> connector._properties[uid][('date_last_modified', 'http://namespaces.zeit.de/CMS/document')] = (
 ...     datetime.datetime(2007, 12, 6, 12, 00, tzinfo=pytz.UTC).isoformat())
 
 We don't know when the object was published. Assume it's fresh:
@@ -156,7 +156,7 @@ When the modification date is not known we also assume it is fresh. Note that
 this case is rather constructed because in reality all objects have a
 modification time.
 
->>> connector._properties[uid][('getlastmodified', 'DAV:')] = None
+>>> connector._properties[uid][('date_last_modified', 'http://namespaces.zeit.de/CMS/document')] = None
 >>> browser.open('http://localhost/++skin++cms/repository/online/2007/01')
 >>> print(browser.contents)
 <?xml ...

core/src/zeit/cms/browser/objectdetails.py

@@ -2,7 +2,6 @@
 import zope.annotation.interfaces
 import zope.cachedescriptors.property
 import zope.component
-import zope.dublincore.interfaces
 import zope.interface
 
 import zeit.cms.browser.interfaces

core/src/zeit/cms/browser/tests/test_listing.py

@@ -17,6 +17,6 @@ def test_columns_ignore_exceptions(self):
             # Check that the cells are present but empty.
             self.assertEllipsis(
                 '...<td> <span class="filename">testcontent</span> </td>'
-                ' <td> 2008 ... </td> <td> </td> <td> </td>...',
+                ' <td> </td> <td> </td>...',
                 b.contents,
             )

core/src/zeit/cms/checkout/browser/manager.py

@@ -4,7 +4,6 @@
 import zope.browser.interfaces
 import zope.cachedescriptors.property
 import zope.component
-import zope.dublincore.interfaces
 import zope.formlib.form
 import zope.i18n
 

core/src/zeit/cms/checkout/manager.py

@@ -1,9 +1,9 @@
 import grokcore.component as grok
+import pendulum
 import zope.app.locking.interfaces
 import zope.cachedescriptors.property
 import zope.component
 import zope.container.interfaces
-import zope.dublincore.interfaces
 import zope.event
 import zope.interface
 import zope.security.proxy
@@ -132,18 +132,26 @@ def checkin(self, event=True, semantic_change=None, ignore_conflicts=False, publ
             raise zeit.cms.checkout.interfaces.CheckinCheckoutError(
                 self.context.uniqueId, 'Cannot checkin: %s' % reason
             )
+
         workingcopy = self.context.__parent__
+
+        modified = zeit.cms.workflow.interfaces.IModified(self.context, None)
+        if not publishing and modified is not None:
+            zope.security.proxy.getObject(modified).date_last_modified = pendulum.now()
+
         sc = zeit.cms.content.interfaces.ISemanticChange(self.context)
         if semantic_change is None:
             semantic_change = sc.has_semantic_change
         if semantic_change:
-            sc.update()
+            zope.security.proxy.getObject(sc).last_semantic_change = modified.date_last_modified
+
         if event:
             zope.event.notify(
                 zeit.cms.checkout.interfaces.BeforeCheckinEvent(
                     self.context, workingcopy, self.principal, publishing
                 )
             )
+
         if ignore_conflicts:
             adapter_name = 'non-conflicting'
         else:
@@ -152,6 +160,7 @@ def checkin(self, event=True, semantic_change=None, ignore_conflicts=False, publ
             self.context, zeit.cms.checkout.interfaces.IRepositoryContent, name=adapter_name
         )
         del workingcopy[self.context.__name__]
+
         if event:
             zope.event.notify(
                 zeit.cms.checkout.interfaces.AfterCheckinEvent(
@@ -164,6 +173,7 @@ def checkin(self, event=True, semantic_change=None, ignore_conflicts=False, publ
                 else:
                     msg = _('Checked in')
                 zeit.objectlog.interfaces.ILog(added).log(msg)
+
         lockable = zope.app.locking.interfaces.ILockable(added, None)
         # Since publishing starts and ends with its own lock()/unlock(), it
         # would be premature to already unlock during the cycle() step.
@@ -173,6 +183,7 @@ def checkin(self, event=True, semantic_change=None, ignore_conflicts=False, publ
             except zope.app.locking.interfaces.LockingError:
                 # object was not locked
                 pass
+
         return added
 
     def delete(self):

core/src/zeit/cms/content/configure.zcml

@@ -136,21 +136,6 @@
   <subscriber handler=".xmlsupport.map_dav_property_to_xml" />
   <subscriber handler=".xmlsupport.map_dav_properties_to_xml_before_checkin" />
 
-  <!-- dublin core -->
-  <class class=".dublincore.RepositoryDCTimes">
-    <require
-      interface="zope.dublincore.interfaces.IDCTimes"
-      permission="zope.View"
-      />
-  </class>
-
-  <class class=".dublincore.LocalDCTimes">
-    <require
-      interface="zope.dublincore.interfaces.IDCTimes"
-      permission="zope.View"
-      />
-  </class>
-
   <!-- semantic changes -->
   <class class=".semanticchange.SemanticChange">
     <require

core/src/zeit/cms/content/interfaces.py

@@ -529,9 +529,6 @@ class ISemanticChange(zope.interface.Interface):
         title=_('Update last semantic change'), required=False, default=False
     )
 
-    def update():
-        """Set last semantic change to last modified."""
-
 
 class IUUID(zope.interface.Interface):
     """Accessing the uuid of a content object."""

core/src/zeit/cms/content/semanticchange.py

@@ -11,6 +11,7 @@
 import zeit.cms.content.dav
 import zeit.cms.content.interfaces
 import zeit.cms.interfaces
+import zeit.cms.workflow.interfaces
 
 
 @zope.interface.implementer(zeit.cms.content.interfaces.ISemanticChange)
@@ -29,11 +30,7 @@ def has_semantic_change(self):
     @has_semantic_change.setter
     def has_semantic_change(self, value):
         if value:
-            self.update()
-
-    def update(self):
-        dc = zope.dublincore.interfaces.IDCTimes(self.context)
-        self.last_semantic_change = dc.modified
+            self.last_semantic_change = datetime.datetime.now(pytz.UTC)
 
 
 hsc_field = zeit.cms.content.interfaces.ISemanticChange['has_semantic_change']

core/src/zeit/cms/content/tests/test_doctest.py

@@ -13,7 +13,6 @@ def test_suite():
             'contentmemo.txt',
             'contentuuid.txt',
             'dav.txt',
-            'dublincore.txt',
             'field.txt',
             'liveproperty.txt',
             'lxmlpickle.txt',

core/src/zeit/cms/content/xmlsupport.py

@@ -1,12 +1,10 @@
 from io import StringIO
-import datetime
 
 import gocept.lxml.objectify
 import grokcore.component as grok
 import lxml.objectify
 import persistent
 import persistent.interfaces
-import pytz
 import zope.interface
 import zope.security.interfaces
 import zope.security.proxy
@@ -110,18 +108,7 @@ class PropertyToXMLAttribute:
 
     def __init__(self, context):
         self.context = context
-        dav_properties = zeit.connector.interfaces.IWebDAVProperties(context)
-
-        # Set the date-last-modified to now
-        try:
-            dav_properties[
-                ('date-last-modified', zeit.cms.interfaces.DOCUMENT_SCHEMA_NS)
-            ] = datetime.datetime.now(pytz.UTC).isoformat()
-        except zope.security.interfaces.Forbidden:
-            # Don't do this for live properties.
-            pass
-
-        self.properties = dict(dav_properties)
+        self.properties = dict(zeit.connector.interfaces.IWebDAVProperties(context))
 
         # Now get the current live-properties
         repository = zope.component.queryUtility(zeit.cms.repository.interfaces.IRepository)

core/src/zeit/cms/ftesting-securitypolicy.zcml

@@ -11,7 +11,6 @@
   <securityPolicy
     component="zope.securitypolicy.zopepolicy.ZopeSecurityPolicy" />
 
-  <include package="zope.dublincore" />
   <include package="zeit.cms" file="permissions.zcml" />
 
   <!-- Roles -->
@@ -79,10 +78,6 @@
   <!-- Grants -->
   <grantAll role="zope.Manager" />
 
-  <grant
-    principal="zope.Authenticated"
-    permission="zope.dublincore.view"
-    />
   <grant
     principal="zope.Authenticated"
     permission="zope.View"

core/src/zeit/cms/ui.zcml

@@ -50,7 +50,6 @@
 
   <!-- Additional packages -->
 
-  <include package="zope.dublincore" />
   <include package="zope.formlib" />
 
   <include package="zope.i18n.locales"/>