Merge pull request #21 in KWA/mobile-device-management from bugfix/KMP-60-unable-to-share-a-folder to master

* commit '61a2fe9816fdff1f5f6255a76138b7b3a5fef392':
  Unable to share a folder

php/class.pluginmdmmodule.php

@@ -492,7 +492,12 @@ class PluginMDMModule extends Module
 						// We've handled the event
 						$e->setHandled();
 					}
+
+					if ($storeType != ZARAFA_STORE_PUBLIC_GUID) {
 						$this->getSubFolders($subtreeFolder, $store, $properties, $storeData, $storeUserName);
+					} else {
+						$this->getSubFoldersPublic($subtreeFolder, $store, $properties, $storeData, $storeUserName);
+					}
 				}
 			}
 		}
@@ -696,6 +701,118 @@ class PluginMDMModule extends Module
 		}
 	}
 
+	/**
+	 * Helper function to get the subfolders of a Public Store
+	 *
+	 * @access private
+	 * @param object $folder Mapi Folder Object.
+	 * @param object $store Message Store Object
+	 * @param array $properties MAPI property mappings for folders
+	 * @param array $storeData Reference to an array. The folder properties are added to this array.
+	 * @param string $storeUserName owner name of store.
+	 */
+	function getSubFoldersPublic($folder, $store, $properties, &$storeData, $storeUserName)
+	{
+		$expand = Array(
+			Array(
+				'folder' => $folder,
+				'props' => mapi_getprops($folder, Array(PR_ENTRYID, PR_SUBFOLDERS))
+			)
+		);
+
+		/**
+		 * remove hidden folders, folders with PR_ATTR_HIDDEN property set
+		 * should not be shown to the client
+		 */
+		$restriction =	Array(RES_OR, Array(
+			Array(RES_PROPERTY,
+				Array(
+					RELOP => RELOP_EQ,
+					ULPROPTAG => PR_ATTR_HIDDEN,
+					VALUE => Array( PR_ATTR_HIDDEN => false )
+				)
+			),
+			Array(RES_NOT,
+				Array(
+					Array(RES_EXIST,
+						Array(
+							ULPROPTAG => PR_ATTR_HIDDEN
+						)
+					)
+				)
+			)
+		));
+
+		// CONVENIENT_DEPTH doesn't work on the IPM_SUBTREE, hence we will be recursivly
+		// walking through the hierarchy. However, we have some special folders like the
+		// "Favorites" and "Public Folders" from where we can switch to using
+		// CONVENIENT_DEPTH. Obtain these special cases here.
+		$specialEntryids = mapi_getprops($store, array(
+			PR_IPM_FAVORITES_ENTRYID,
+			PR_IPM_PUBLIC_FOLDERS_ENTRYID
+		));
+
+		// Start looping through the $expand array, during each loop we grab the first item in
+		// the array and obtain the hierarchy table for that particular folder. If one of those
+		// subfolders has subfolders of its own, it will be appended to $expand again to ensure
+		// it will be expanded later.
+		while (!empty($expand)) {
+			$item = array_shift($expand);
+			$columns = $properties;
+			$hierarchyTable = mapi_folder_gethierarchytable($item['folder'], MAPI_DEFERRED_ERRORS);
+
+			mapi_table_restrict($hierarchyTable, $restriction, TBL_BATCH);
+
+			mapi_table_setcolumns($hierarchyTable, $columns);
+			$columns = null;
+
+			// Load the hierarchy in small batches
+			$batchcount = 100;
+			do {
+				$rows = mapi_table_queryrows($hierarchyTable, $columns, 0, $batchcount);
+
+				foreach($rows as $subfolder) {
+					$specialFolder = false;
+
+					// Check if this folder is special...
+					if (!empty($specialEntryids)) {
+						foreach ($specialEntryids as $key => $value) {
+							// No need to do compareEntryId(), the special folders have static
+							// entryids, and can be compared using ===.
+							if (bin2hex($subfolder[PR_ENTRYID]) === bin2hex($value)) {
+								$specialFolder = mapi_msgstore_openentry($store, $subfolder[PR_ENTRYID]);
+								$subfolder = mapi_getprops($specialFolder, $properties);
+
+								// We found the folder, no need to loop over it next time.
+								unset($specialEntryids[$key]);
+								break;
+							}
+						}
+					}
+
+					// If the subfolders has subfolders of its own, append the folder
+					// to the $expand array, so it can be expanded in the next loop.
+					if ($subfolder[PR_SUBFOLDERS]) {
+						if ($specialFolder) {
+							// Special folders can be redirected again to getSubFolders(),
+							$this->getSubFolders($specialFolder, $store, $properties, $storeData, $subfolder[PR_ENTRYID], $storeUserName);
+						} else {
+							$folderObject = mapi_msgstore_openentry($store, $subfolder[PR_ENTRYID]);
+							array_push($expand, array('folder' => $folderObject, 'props' => $subfolder));
+						}
+					}
+
+					$subfolder["user"] = $storeUserName;
+					// Add the folder to the return list.
+					array_push($storeData, $subfolder);
+				}
+
+				// When the server returned a different number of rows then was requested,
+				// we have reached the end of the table and we should exit the loop.
+			} while (count($rows) === $batchcount);
+		}
+	}
+
     /**
 	 * Function which is use get folder types from the container class
      * @param string $containerClass container class of folder