<?php
	/**************************************************************************\
	* -------------------------------------------------------------------------*
	* This library is free software; you can redistribute it and/or modify it  *
	* under the terms of the GNU Lesser General Public License as published by *
	* the Free Software Foundation; either version 2.1 of the License,         *
	* or any later version.                                                    *
	* This library is distributed in the hope that it will be useful, but      *
	* WITHOUT ANY WARRANTY; without even the implied warranty of               *
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     *
	* See the GNU Lesser General Public License for more details.              *
	* You should have received a copy of the GNU Lesser General Public License *
	* along with this library; if not, write to the Free Software Foundation,  *
	* Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA            *
	\**************************************************************************/

	/* $Id: class.vfs_functions.inc.php 2009-11-11 amuller $ */

	class vfs_functions
	{
		var $public_functions = array(
			'touch' => True,
			'download'=>True,
			'setRestricted'=>True,
			'editComment'=> True,
			'rename'=>True,
			'delete'=>True,
			'summary' => True
		);

		//keep
		var $bo;
		var $dispath;
		var $cwd;
		var $lesspath;
		var $dispsep;

		var $target;

		var $prefs;//array

		var $current_config;
		// this ones must be checked thorougly;
		var $fileman = Array();
		//var $fileman;
		var $path;
		var $file;
		var $debug = false;
		var $now;

		function vfs_functions()
		{
			$this->now = date('Y-m-d');

			$this->bo = CreateObject('filemanager.bofilemanager');

			$c = CreateObject('phpgwapi.config','filemanager');
			$c->read_repository();
			$this->current_config = $c->config_data;


			// here local vars are created from the HTTP vars
			@reset($GLOBALS['HTTP_POST_VARS']);
			while(list($name,) = @each($GLOBALS['HTTP_POST_VARS']))
			{
				$this->$name = $GLOBALS['HTTP_POST_VARS'][$name];
			}

			@reset($GLOBALS['HTTP_GET_VARS']);
			while(list($name,) = @each($GLOBALS['HTTP_GET_VARS']))
			{
				$$name = $GLOBALS['HTTP_GET_VARS'][$name];
				$this->$name = $GLOBALS['HTTP_GET_VARS'][$name];

			}

			$to_decode = array
			(
				'op'	=> array('op' => ''),
				'path'	=> array('path' => ''),
				'file'	=> array('file' => ''),
				'sortby'	=> array('sortby' => ''),
				'messages'	=> array('messages'	=> ''),
				'comment'	=> array('comment' => ''),
				'to'	=> array('to' => '')
			);

			reset($to_decode);
			while(list($var, $conditions) = each($to_decode))
			{
				while(list($condvar, $condvalue) = each($conditions))
				{
					if(isset($$condvar) && ($condvar == $var || $$condvar == $condvalue))
					{
						if(is_array($$var))
						{
							$temp = array();
							while(list($varkey, $varvalue) = each($$var))
							{
								if(is_int($varkey))
								{
									$temp[$varkey] = stripslashes(base64_decode(urldecode(($varvalue))));
								}
								else
								{
									$temp[stripslashes(base64_decode(urldecode(($varkey))))] = $varvalue;
								}
							}
							$this->$var = $temp;
						}
						elseif(isset($$var))
						{
							$this->$var = stripslashes(base64_decode(urldecode($$var)));
						}
					}
				}
			}

			// get appl. and user prefs
			$pref = CreateObject('phpgwapi.preferences', $this->bo->userinfo['username']);
			$pref->read_repository();
			$pref->save_repository(True);
			$pref_array = $pref->read_repository();
			$this->prefs = $pref_array[$this->bo->appname];

			//always show name

			$this->prefs[name] =1;		
			
		}
	// String format is YYYY-MM-DD HH:MM
		function dateString2timeStamp($string){
			return mktime($string[11].$string[12],
				$string[14].$string[15],
				$string[17].$string[18], 
				$string[5].$string[6], 
				$string[8].$string[9],
				$string[0].$string[1].
				$string[2].$string[3]);
		}
		function verifyLock($file,$relative){
			$ls_array = $this->bo->vfs->ls(array(
				'string'        => $file,
				'relatives'     => array($relative),
				'checksubdirs'  => False,
				'nofiles'       => True
			));
			$timestamp = $this->dateString2timeStamp($ls_array[0]['modified']);
			if (time() - $timestamp < 60 && $ls_array[0]['modifiedby_id'] != $GLOBALS['phpgw_info']['user']['account_id']) // recently than last minute: someone is editing
			{
				$this->messages[]=lang('Error:').lang('This file is being edited right now by:').$GLOBALS['phpgw']->accounts->id2name($ls_array[0]['modifiedby_id']);
				return False;

			}
			else
				return True;
		}

		function setRestricted(){
			$GLOBALS['phpgw_info']['flags'] = array
				(
					'currentapp'    => 'filemanager',
					'noheader'      => True,
					'nonavbar' => True,
					'nofooter'      => True,
					'noappheader'   => True,
					'enable_browser_class'  => True
				);

			if ($this->file)
			{
				$filename=$this->path.'/'.$this->file;
				if(!$this->verifyLock($filename,RELATIVE_NONE))
				{
					echo "False";
					return False;
				}
				
				$ls_array = $this->bo->vfs->ls(array(
					'string'        => $filename,
					'relatives'     => array(RELATIVE_NONE),
					'checksubdirs'  => False,
					'nofiles'       => True
				));
				if (intval($ls_array[0]['type']) == 0)
					$type = 1;
				else
					$type = 0;

				if($this->bo->vfs->set_attributes (array(
					'string'        => $filename,
					'relatives'     => RELATIVE_NONE,
					'attributes'    => array('type' => $type)
					))
				)
				{
					echo "True:".$this->file;
				}
				else
				{
					echo "False";
				}
			}

		}
		function touch(){
			if($this->file)
				if ($this->bo->vfs->touch(array('string'=> $this->file,'relatives' => array(RELATIVE_ALL))))
				{
					echo "True";
					return True;
				}
				else
					return False;

		}
		function summary()
		{
			if($this->file)
			{	
				header('Content-Type: image/gif');
				$expires = 60*60*24*15; /* 15 days */
				header("Cache-Control: maxage=".$expires);
				header("Pragma: public");
				header("Expires: ".gmdate('D, d M Y H:i:s', time()+$expires));
				$content = $this->bo->vfs->summary(array('path' => $this->path,
					'string' => $this->file
				));
				if (sizeof($content) > 0)
					echo $content;
				else
				{
					$filename = './filemanager/templates/default/images/error.gif';
					$handle = fopen($filename,'rb');
					echo fread($handle,filesize($filename));
					fclose($handle);
				}

				$GLOBALS['phpgw']->common->phpgw_exit();
			}
		}
	
		function delete(){
			foreach($this->fileman as $filename)
			{
				if($this->verifyLock($filename,RELATIVE_ALL) && $this->bo->vfs->delete(array('string' => $filename)))
				{
					echo $filename.":";
				}
				else
				{
					echo "False:".$filename;
					return False;
				}
			}
		}
		function editComment()
		{
				if($badchar = $this->bo->bad_chars($this->comment, False, True))
				{
					echo "False:badchar:".$badchar;
					return False;
				}

				if ($this->bo->vfs->set_attributes(array(
					'string'        => $this->file,
					'relatives'     => array(RELATIVE_ALL),
					'attributes'    => array(
					'comment' => stripslashes($this->comment)
					)
				)))
				{
					echo "True:".$this->file;
					return True;
				}
		}
		# Handle Renaming Files and Directories
		function rename()
		{
			if ($this->file)
			{
				if($badchar = $this->bo->bad_chars($this->to, True, True))
				{
					echo "Error:badchar:".$badchar;
					return false;
				}
				if(ereg("/", $this->to) || ereg("\\\\", $this->to))
				{
					echo "Error:slashes";
					return false;
				}
				elseif(!$this->verifyLock($this->file,RELATIVE_CURRENT))
					echo "Error:editing";
				elseif ($this->bo->vfs->mv(array(
					'from'  => $this->path.'/'.$this->file,
					'to'    => $this->path.'/'.$this->to,
					'relatives' => array(RELATIVE_NONE,RELATIVE_NONE)
				)))
				{
					echo "True:".$this->file.":".$this->to;
				}
				else
				{
					echo "Error:".$this->file.":".$this->to;
				}
			}
		}

	}