forked from extern/egroupware
363 lines
12 KiB
PHP
363 lines
12 KiB
PHP
<?php
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/**************************************************************************\
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* phpGroupWare API - VFS *
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* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
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* This class handled file/dir access for phpGroupWare *
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* Copyright (C) 2000, 2001 Dan Kuykendall *
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* -------------------------------------------------------------------------*
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* This library is part of the phpGroupWare API *
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* http://www.phpgroupware.org/api *
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* ------------------------------------------------------------------------ *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published by *
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* the Free Software Foundation; either version 2.1 of the License, *
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* or any later version. *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* See the GNU Lesser General Public License for more details. *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with this library; if not, write to the Free Software Foundation, *
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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\**************************************************************************/
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/* $Id$ */
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class vfs
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{
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var $basedir;
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function sanitize($string) {
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global $phpgw, $phpgw_info;
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$sep = $phpgw_info["server"]["dir_separator"];
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return(ereg_replace( "^\.+", "",str_replace($sep, "",strrchr($string,$sep))));
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}
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function securitycheck($string) {
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if(substr($string,0,1) == "." || substr($string,0,1) == "\\" || strstr($string, "..") || strstr($string, "\\..") || strstr($string, ".\\.")) {
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return False;
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}else{
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return True;
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}
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}
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function rawname2array($string) {
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global $phpgw, $phpgw_info;
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$sep = $phpgw_info["server"]["dir_separator"];
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if(substr($string,0,1) == $sep) {
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// we have a starting slash...
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$sub = substr($string,1); // take everything past the first slash...
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$basedir = substr($sub,0,strpos($sub,$sep)); // ...to the second slash
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if (!$basedir){
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$basedir = substr($sub,strpos($sub,$sep)); // it becomes the basedir
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}else{
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$file = substr($sub,strpos($sub,$sep)); // take everything after the second slash.
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}
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} else {
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// we have no starting slash...
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$basedir = $phpgw->common->appsession();
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$file = $string;
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}
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// security check (might want to spin this into it's own function...)
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if(substr($file,0,1) == "." || substr($file,0,1) == "\\" || strstr($file, "..") || strstr($file, "\\..") || strstr($file, ".\\.")) {
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return False;
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}
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return(array( "basedir" => $basedir, "file" => $file));
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}
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function getabsolutepath($target = False) {
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global $phpgw, $phpgw_info;
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$sep = $phpgw_info["server"]["dir_separator"];
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$basedir = $phpgw_info["server"]["files_dir"].$sep."groups";
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$currentdir = $phpgw->common->appsession();
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if(!$this->securitycheck($target)) {
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return False;
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} else {
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$dir_array = explode($sep,$target);
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$dir_count = count($dir_array);
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if (substr ($target, 0, 1) != $sep){
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if (!empty($currentdir)){
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$basedir .= $currentdir;
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}
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}
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for ($diridx=0;$diridx<$dir_count;++$diridx) {
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if (!empty($dir_array[$diridx])){
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$basedir .= $sep.$dir_array[$diridx];
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}
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}
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return $basedir = ereg_replace ($phpgw_info["server"]["files_dir"].$sep."groups".$sep."home", $phpgw_info["server"]["files_dir"].$sep."users".$sep.$phpgw_info["user"]["userid"], $basedir);
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}
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}
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function ls($target = False, $checksubdirs = "No") {
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global $phpgw, $phpgw_info;
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$sep = $phpgw_info["server"]["dir_separator"];
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if(!$this->securitycheck($target)) {
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return False;
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} else {
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$basedir = $this->getabsolutepath($target);
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if ($basedir == $phpgw_info["server"]["files_dir"].$sep."groups".$sep || $target == "/"){
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//if ($basedir == $phpgw_info["server"]["files_dir"].$sep."groups".$sep){
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if ($checksubdirs == "Yes"){ //if its a dir, does that dir have subdirs?
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$path = $phpgw_info["server"]["files_dir"].$sep."users".$sep.$phpgw_info["user"]["userid"];
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$subdir = dir($path);
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while($subentry=$subdir->read()) {
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$subpath = $path.$sep.$subentry;
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$subtype = filetype($subpath);
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if ($subentry != "." && $subentry != ".." && $subtype == "dir"){
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$hassubdir = True;
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}
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}
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}
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$list[] = array("name" => "home", "type" => "dir", "subdirs" => $hassubdir);
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$hassubdir = False;
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$groups = $phpgw->accounts->get_list('groups');
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if (!empty ($groups[0]['account_lid'])) {
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$group_count = count($groups);
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for ($groupidx=0;$groupidx<$group_count;++$groupidx) {
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$this->verifydir("group",$groups[$groupidx]['account_lid']);
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if ($checksubdirs == "Yes"){ //if its a dir, does that dir have subdirs?
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$path = $phpgw_info["server"]["files_dir"].$sep."groups".$sep.$groups[$groupidx]['account_lid'];
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$subdir = dir($path);
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while($subentry=$subdir->read()) {
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$subpath = $path.$sep.$subentry;
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$subtype = filetype($subpath);
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if ($subentry != "." && $subentry != ".." && $subtype == "dir"){
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$hassubdir = True;
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}
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}
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}
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$list[] = array("name" => $groups[$groupidx]['account_lid'], "type" => "dir", "subdirs" => $hassubdir);
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$hassubdir = False;
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}
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}
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return $list;
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}elseif (is_dir($basedir)){ //if basedir is a directory, then we fill the array
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$dir = dir($basedir);
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while($entry=$dir->read()) {
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if ($entry != "." && $entry != ".." ){ //make sure we filter out . and ..
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$path = $basedir.$sep.$entry;
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if (filetype($path) == "dir"){
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$entrytype = "dir";
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if ($checksubdirs == "Yes"){ //if its a dir, does that dir have subdirs?
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$subdir = dir($path);
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while($subentry=$subdir->read()) {
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$subpath = "$path$sep$subentry";
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$subtype = filetype($subpath);
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if ($subentry != "." && $subentry != ".." && $subtype == "dir"){
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$hassubdir = True;
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}
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}
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}
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$list[] = array("name" => $entry, "type" => $entrytype, "subdirs" => $hassubdir);
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}
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if (filetype($path) == "file"){
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$entrytype = "file";
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$entrysize = filesize($path);
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$entrymodifiedtime = filemtime($path);
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$list[] = array("name" => $entry, "type" => $entrytype, "size" => $entrysize, "modified" =>$entrymodifiedtime);
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}
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}
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}
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$dir->close();
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return $list;
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}elseif(is_file($basedir)){
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$dir_array = explode($sep,$basedir);
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unset($basedir);
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$dir_count = count($dir_array);
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for ($diridx=0;$diridx<($dir_count-1);++$diridx) {
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if (!empty($dir_array[$diridx])){
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$basedir .= $sep.$dir_array[$diridx];
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}
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}
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if (!is_dir($basedir) && !is_file($basedir)){
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return False;
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}elseif (is_dir($basedir)) {
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$file = $dir_array[$dir_count];
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}
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}
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}
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}
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function dir($target, $checksubdirs) {
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return $this->ls($target, $checksubdirs);
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}
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function cd ($target = "/", $targettype = "relative"){
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global $phpgw, $phpgw_info;
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$sep = $phpgw_info["server"]["dir_separator"];
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if ($targettype == "relative"){
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$basedir = $this->getabsolutepath($target);
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}else{
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$basedir = $target;
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}
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$currentdir = $phpgw->common->appsession();
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if (substr ($target, 0, 1) != $sep){
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if (!empty($currentdir)){
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$appsession_dir = $currentdir.$sep.$target;
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}
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}else{
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$appsession_dir = $target;
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}
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if (!is_dir($basedir)){
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return False;
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}else{
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$var = chdir ($basedir);
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if ($var){
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$phpgw->common->appsession($appsession_dir);
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return True;
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}else{
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return False;
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}
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}
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}
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function pwd() {
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global $phpgw;
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$currentdir = $phpgw->common->appsession();
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if ($currentdir == ""){$currentdir = "/";}
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return $currentdir;
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}
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function read($file) {
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global $phpgw_info;
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$path = $this->getabsolutepath($file);
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if ($fp = fopen($path, "r")) {
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$contents = fread($fp, filesize($path));
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fclose($fp);
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return $contents;
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} else {
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return False;
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}
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}
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function write($file, $contents) {
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global $phpgw_info;
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$path = $this->getabsolutepath($file);
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umask(000);
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if ($fp = fopen($path, "w")) {
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fputs($fp, $contents, strlen($contents));
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fclose($fp);
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return 1;
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} else {
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return 0;
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}
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}
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function cp($fromfile, $tofile, $from_absolute = "") {
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global $phpgw_info;
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if ($from_absolute){
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$frompath = $fromfile;
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}else{
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$frompath = $this->getabsolutepath($fromfile);
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}
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$topath = $this->getabsolutepath($tofile);
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umask(000);
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if (!copy($frompath, $topath)) {
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return False;
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}else{
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return True;
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}
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}
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function copy($fromfile, $tofile) {
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umask(000);
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return $this->cp($fromfile, $tofile);
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}
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function mv($fromfile, $tofile, $from_absolute = False) {
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global $phpgw_info;
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if ($from_absolute){
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$frompath = $fromfile;
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}else{
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$frompath = $this->getabsolutepath($fromfile);
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}
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$topath = $this->getabsolutepath($tofile);
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umask(000);
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if (!copy($frompath, $topath)) {
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return False;
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}else{
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if (!unlink($frompath)) {
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return False;
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}else{
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return True;
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}
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}
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}
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function move($fromfile, $tofile, $from_absolute) {
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umask(000);
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return $this->mv($fromfile, $tofile, $from_absolute);
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}
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function rm($file) {
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global $phpgw_info;
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$path = $this->getabsolutepath($file);
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if (!unlink($path)) {
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return False;
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}else{
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return True;
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}
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}
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function delete($file) {
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return $this->rm($file);
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}
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function rmdir($dir) {
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global $phpgw_info;
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$path = $this->getabsolutepath($dir);
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if (!rmdir($path)) {
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return False;
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}else{
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return True;
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}
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}
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function mkdir($dir) {
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global $phpgw_info;
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$path = $this->getabsolutepath($dir);
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umask(000);
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if (!mkdir($path, 01707)) {
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return False;
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}else{
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return True;
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}
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}
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function verifydir($type = "user", $account = False) {
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global $phpgw_info;
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if (!$account){
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$path = "/home";
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}else{
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$path = "/".$account;
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}
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if (!is_dir ($this->getabsolutepath($path))) {
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if (!$this->mkdir ($path)) {
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$msg = "To correct this error you will need to properly set the "
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. "permissions to the files/users directory.<br> "
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."On *nix systems please type: chmod 707 ";
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if ($type = "user"){
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$msg .= $phpgw_info["server"]["files_dir"] . "/users/";
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}else{
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$msg .= $phpgw_info["server"]["files_dir"] . "/groups/";
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}
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echo $msg;
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return False;
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}else{
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return True;
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}
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}else{
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return True;
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}
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}
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}
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