X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Ftree.php;h=f8503b8110f5de6c9803e3a55e48c76361ea1b77;hb=bfa045d3d871600c3d735bc34ad8bb75594f5cdd;hp=8639292220e17d846c477fdc8518b20c6136ed24;hpb=eaf1a31286fb9fc096ab235dd187f4bc8a3be571;p=squirrelmail.git

diff --git a/functions/tree.php b/functions/tree.php
index 86392922..f8503b81 100644
--- a/functions/tree.php
+++ b/functions/tree.php
@@ -3,23 +3,27 @@
 /**
  * tree.php
  *
- * Copyright (c) 1999-2003 The SquirrelMail Project Team
+ * Copyright (c) 1999-2005 The SquirrelMail Project Team
  * Licensed under the GNU GPL. For full terms see the file COPYING.
  *
- * This code provides various string manipulation functions that are
- * used by the rest of the Squirrelmail code.
+ * This file provides functions to walk trees of folders, for
+ * instance to delete a whole tree.
  *
- * $Id$
+ * @version $Id$
+ * @package squirrelmail
  */
 
+/** Clearly, this needs the IMAP functions.. */
 require_once(SM_PATH . 'functions/imap.php');
 
 /**
- * findParentForChild
+ * Recursive function to find the correct parent for a new node.
  *
- * Recursive function to find the correct parent for a new node
+ * @param mixed value the value to find a parent for
+ * @param int treeIndexToStart where to start the search, usually the root node (0)
+ * @param array tree the tree to search
+ * @return int the index of the parent
  */
-
 function findParentForChild($value, $treeIndexToStart, $tree) {
     // is $value in $tree[$treeIndexToStart]['value']
     if ((isset($tree[$treeIndexToStart])) && (strstr($value, $tree[$treeIndexToStart]['value']))) {
@@ -41,6 +45,13 @@ function findParentForChild($value, $treeIndexToStart, $tree) {
     }
 }
 
+/**
+ * Will insert a new value into the tree, based on a given comparison value.
+ *
+ * @param mixed comparisonValue the value to determine where the new element should be placed.
+ * @param mixed value the new node to insert
+ * @param array tree the tree to insert the node in, by ref
+ */
 function addChildNodeToTree($comparisonValue, $value, &$tree) {
     $parentNode = findParentForChild($comparisonValue, 0, $tree);
 
@@ -60,16 +71,37 @@ function addChildNodeToTree($comparisonValue, $value, &$tree) {
     }
 }
 
+/**
+ * Recursively walk the tree of trash mailboxes and delete all folders and messages
+ *
+ * @param int index the place in the tree to start, usually 0
+ * @param stream imap_stream the IMAP connection to send commands to
+ * @param array tree the tree to walk
+ * @return void
+ */
 function walkTreeInPreOrderEmptyTrash($index, $imap_stream, $tree) {
     global $trash_folder;
+    walkTreeInPreOrderEmptyFolder($index, $imap_stream, $tree, $trash_folder);
+}
+
+/**
+ * Recursively walk the tree of mailboxes in the given folder and delete all folders and messages
+ *
+ * @param int index the place in the tree to start, usually 0
+ * @param stream imap_stream the IMAP connection to send commands to
+ * @param array tree the tree to walk
+ * @param mailbox the name of the root folder to empty
+ * @return void
+ */
+function walkTreeInPreOrderEmptyFolder($index, $imap_stream, $tree, $mailbox) {
     if ($tree[$index]['doIHaveChildren']) {
         for ($j = 0; $j < count($tree[$index]['subNodes']); $j++) {
             walkTreeInPreOrderEmptyTrash($tree[$index]['subNodes'][$j], $imap_stream, $tree);
         }
-        if ($tree[$index]['value'] != $trash_folder) {
+        if ($tree[$index]['value'] != $mailbox) {
             sqimap_mailbox_delete($imap_stream, $tree[$index]['value']);
         } else {
-            $mbx_response = sqimap_mailbox_select($imap_stream, $trash_folder);
+            $mbx_response = sqimap_mailbox_select($imap_stream, $mailbox);
             if ($mbx_response['EXISTS'] > 0) {
                sqimap_messages_flag ($imap_stream, 1, '*', 'Deleted', true);
                // CLOSE === EXPUNGE and UNSELECT
@@ -77,10 +109,10 @@ function walkTreeInPreOrderEmptyTrash($index, $imap_stream, $tree) {
             }
         }
     } else {
-        if ($tree[$index]['value'] != $trash_folder) {
+        if ($tree[$index]['value'] != $mailbox) {
             sqimap_mailbox_delete($imap_stream, $tree[$index]['value']);
         } else {
-            $mbx_response = sqimap_mailbox_select($imap_stream, $trash_folder);
+            $mbx_response = sqimap_mailbox_select($imap_stream, $mailbox);
             if ($mbx_response['EXISTS'] > 0) {
                 sqimap_messages_flag ($imap_stream, 1, '*', 'Deleted', true);
                 // CLOSE === EXPUNGE and UNSELECT
@@ -91,6 +123,14 @@ function walkTreeInPreOrderEmptyTrash($index, $imap_stream, $tree) {
 }
 
 
+/**
+ * Recursively delete a tree of mail folders.
+ *
+ * @param int index the place in the tree to start, usually 0
+ * @param stream imap_stream the IMAP connection to send commands to
+ * @param array tree the tree to walk
+ * @return void
+ */
 function walkTreeInPreOrderDeleteFolders($index, $imap_stream, $tree) {
     if ($tree[$index]['doIHaveChildren']) {
         for ($j = 0; $j < count($tree[$index]['subNodes']); $j++) {
@@ -102,15 +142,21 @@ function walkTreeInPreOrderDeleteFolders($index, $imap_stream, $tree) {
     }
 }
 
+/**
+ * Recursively walk a tree of folders to create them under the trash folder.
+ */
 function walkTreeInPostOrderCreatingFoldersUnderTrash($index, $imap_stream, $tree, $topFolderName) {
     global $trash_folder, $delimiter;
 
-    $position = strrpos($topFolderName, $delimiter) + 1;
+    $position = strrpos($topFolderName, $delimiter);
+    if ($position !== FALSE) {
+        $position++;
+    }
     $subFolderName = substr($tree[$index]['value'], $position);
 
     if ($tree[$index]['doIHaveChildren']) {
         sqimap_mailbox_create($imap_stream, $trash_folder . $delimiter . $subFolderName, "");
-        $mbx_response = sqimap_mailbox_select($imap_stream, $tree[$index]['value']);	    
+        $mbx_response = sqimap_mailbox_select($imap_stream, $tree[$index]['value']);
         $messageCount = $mbx_response['EXISTS'];
         if ($messageCount > 0) {
             sqimap_messages_copy($imap_stream, 1, '*', $trash_folder . $delimiter . $subFolderName);
@@ -131,14 +177,20 @@ function walkTreeInPostOrderCreatingFoldersUnderTrash($index, $imap_stream, $tre
     }
 }
 
+/**
+ * Recursive function that outputs a tree In-Pre-Order.
+ * @param int index the node to start (usually 0)
+ * @param array tree the tree to walk
+ * @return void
+ */
 function simpleWalkTreePre($index, $tree) {
     if ($tree[$index]['doIHaveChildren']) {
         for ($j = 0; $j < count($tree[$index]['subNodes']); $j++) {
             simpleWalkTreePre($tree[$index]['subNodes'][$j], $tree);
         }
-        echo $tree[$index]['value'] . '<br>';
+        echo $tree[$index]['value'] . '<br />';
     } else {
-        echo $tree[$index]['value'] . '<br>';
+        echo $tree[$index]['value'] . '<br />';
     }
 }
 ?>