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diff --git a/kftpgrabber/src/engine/cache.h b/kftpgrabber/src/engine/cache.h
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+/*
+ * This file is part of the KFTPGrabber project
+ *
+ * Copyright (C) 2003-2006 by the KFTPGrabber developers
+ * Copyright (C) 2003-2006 Jernej Kos <kostko@jweb-network.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
+ * NON-INFRINGEMENT.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ *
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+
+#ifndef KFTPENGINECACHE_H
+#define KFTPENGINECACHE_H
+
+#include <qmap.h>
+#include <kurl.h>
+
+#include "directorylisting.h"
+
+namespace KFTPEngine {
+
+class Socket;
+
+/**
+ * This class provides a cache of paths and directory listings to be used for
+ * faster operations.
+ *
+ * @author Jernej Kos <kostko@jweb-network.net>
+ */
+class Cache {
+public:
+    static Cache *self();
+    ~Cache();
+
+    /**
+     * Cache a directory listing.
+     *
+     * @param url The listing url (including host information)
+     * @param listing The directory listing to cache
+     */
+    void addDirectory(KURL &url, DirectoryListing listing);
+    
+    /**
+     * Cache a directory listing, extracting the host information from the
+     * socket and using the current directory path.
+     *
+     * @param socket The socket to extract the host info from
+     * @param listing The directory listing to cache
+     */
+    void addDirectory(Socket *socket, DirectoryListing listing);
+    
+    /**
+     * Updates a single directory entry.
+     *
+     * @param socket The socket to extract the host info from
+     * @param path Entry location
+     * @param filesize New file size
+     */
+    void updateDirectoryEntry(Socket *socket, KURL &path, filesize_t filesize);
+    
+    /**
+     * Cache path information.
+     *
+     * @param url The url (including host information)
+     * @param target Actual target directory
+     */
+    void addPath(KURL &url, const QString &target);
+    
+    /**
+     * Cache path information, extracting the host information from the
+     * socket and using the current directory path.
+     *
+     * @param socket The socket to extract the host info from
+     * @param target Actual target directory
+     */
+    void addPath(Socket *socket, const QString &target);
+    
+    /**
+     * Invalidate a cached entry.
+     *
+     * @param url Url of the entry
+     */
+    void invalidateEntry(KURL &url);
+    
+    /**
+     * Invalidate a cached entry.
+     *
+     * @param socket The socket to extract the host info from
+     * @param path Path of the entry
+     */
+    void invalidateEntry(Socket *socket, const QString &path);
+    
+    /**
+     * Invalidate a cached path.
+     *
+     * @param url Url of the entry
+     */
+    void invalidatePath(KURL &url);
+    
+    /**
+     * Invalidate a cached path.
+     *
+     * @param socket The socket to extract the host info from
+     * @param path Path of the entry
+     */
+    void invalidatePath(Socket *socket, const QString &path);
+    
+    /**
+     * Retrieve a cached directory listing.
+     *
+     * @param url Url of the entry
+     * @return A valid DirectoryListing if found, an empty DirectoryListing otherwise
+     */
+    DirectoryListing findCached(KURL &url);
+    
+    /**
+     * Retrieve a cached directory listing.
+     *
+     * @param socket The socket to extract the host info from
+     * @param path Path of the entry
+     * @return A valid DirectoryListing if found, an empty DirectoryListing otherwise
+     */
+    DirectoryListing findCached(Socket *socket, const QString &path);
+    
+    /**
+     * Retrieve a cached path.
+     *
+     * @param url Url of the entry
+     * @return A target path if found, QString::null otherwise
+     */
+    QString findCachedPath(KURL &url);
+    
+    /**
+     * Retrieve a cached path.
+     *
+     * @param socket The socket to extract the host info from
+     * @param path Path of the entry
+     * @return A target path if found, QString::null otherwise
+     */
+    QString findCachedPath(Socket *socket, const QString &path);
+protected:
+    Cache();
+    static Cache *m_self;
+private:
+    QMap<KURL, DirectoryListing> m_listingCache;
+    QMap<KURL, QString> m_pathCache;
+};
+
+}
+
+#endif