ZP-780 Fetch missing properties to be backwards compatible.

Released under the Affero GNU General Public License (AGPL) version 3.

src/backend/zarafa/mapiprovider.php

@@ -847,6 +847,14 @@ class MAPIProvider {
 
         $storeprops = $this->getStoreProps();
 
+        // For ZCP 7.0.x we need to retrieve more properties explicitly, see ZP-780
+        if (isset($folderprops[PR_SOURCE_KEY]) && !isset($folderprops[PR_ENTRYID]) && !isset($folderprops[PR_CONTAINER_CLASS])) {
+            $entryid = mapi_msgstore_entryidfromsourcekey($this->store, $folderprops[PR_SOURCE_KEY]);
+            $mapifolder = mapi_msgstore_openentry($this->store, $entryid);
+            $folderprops = mapi_getprops($mapifolder, array(PR_DISPLAY_NAME, PR_PARENT_ENTRYID, PR_ENTRYID, PR_SOURCE_KEY, PR_PARENT_SOURCE_KEY, PR_CONTAINER_CLASS, PR_ATTR_HIDDEN));
+            ZLog::Write(LOGLEVEL_DEBUG, "MAPIProvider->GetFolder(): received insuffient of data from ICS. Fetching required data.");
+        }
+
         if(!isset($folderprops[PR_DISPLAY_NAME]) ||
            !isset($folderprops[PR_PARENT_ENTRYID]) ||
            !isset($folderprops[PR_SOURCE_KEY]) ||