silverstripe-framework/filesystem/Folder.php

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<?php
/**
* @package sapphire
* @subpackage filesystem
*/
/**
* Represents a folder in the assets directory.
*/
class Folder extends File {
static $many_many = array(
"CanUse" => "Group",
"CanEdit" => "Group"
);
/*
* Find the given folder or create it, recursively
*/
static function findOrMake($folder) {
$parts = explode("/",$folder);
$parentID = 0;
foreach($parts as $part) {
$item = DataObject::get_one("Folder", "Name = '$part' AND ParentID = $parentID");
if(!$item) {
$item = new Folder();
$item->ParentID = $parentID;
$item->Name = $part;
$item->write();
if(!file_exists($item->getFullPath())) mkdir($item->getFullPath(),Filesystem::$folder_create_mask);
}
$parentID = $item->ID;
}
return $item;
}
function userCanUse() {
if( Member::currentUser()->_isAdmin() )
return true;
$useGroups = $this->CanUse();
if( !$useGroups || $useGroups->Count() == 0 )
return true;
foreach( $useGroups as $useGroup )
if( Member::currentUser()->inGroup( $useGroup->ID ) )
return true;
return false;
}
function userCanEdit() {
if( Member::currentUser()->_isAdmin() )
return true;
$useGroups = $this->CanEdit();
if( !$useGroups || $useGroups->Count() == 0 )
return true;
foreach( $useGroups as $useGroup )
if( Member::currentUser()->inGroup( $useGroup->ID ) )
return true;
return false;
}
/**
* Syncronise the file database with the actual content of the assets folder
*/
function syncChildren() {
$parentID = (int)$this->ID; // parentID = 0 on the singleton, used as the 'root node';
$added = 0;
$deleted = 0;
// First, merge any children that are duplicates
$duplicateChildrenNames = DB::query("SELECT Name FROM `File` WHERE ParentID = $parentID GROUP BY Name HAVING count(*) > 1")->column();
if($duplicateChildrenNames) foreach($duplicateChildrenNames as $childName) {
$childName = addslashes($childName);
// Note, we do this in the database rather than object-model; otherwise we get all sorts of problems about deleting files
$children = DB::query("SELECT ID FROM `File` WHERE Name = '$childName' AND ParentID = $parentID")->column();
$keptChild = array_shift($children);
foreach($children as $removedChild) {
DB::query("UPDATE `File` SET ParentID = $keptChild WHERE ParentID = $removedChild");
DB::query("DELETE FROM `File` WHERE ID = $removedChild");
}
}
// Get index of database content
$dbChildren = DataObject::get("File", "ParentID = $parentID");
if(isset($dbChildren)) {
foreach($dbChildren as $dbChild) {
$hasDbChild[$dbChild->Name] = $dbChild;
}
$unwantedDbChildren = $hasDbChild;
}
// Iterate through the actual children, correcting the database as necessary
$baseDir = $this->FullPath;
if(!$this->Filename) die($this->ID . " - " . $this->FullPath);
if(file_exists($baseDir)) {
$actualChildren = scandir($baseDir);
foreach($actualChildren as $actualChild) {
if($actualChild[0] == '.') continue; // ignore hidden files
if(substr($actualChild,0,6) == 'Thumbs') continue; // ignore windows cache stuff
if($actualChild == '_resampled') continue; // ignore the resampled copies of images
if($actualChild == '_tmp') continue; // ignore tmp folder for PhotoEditor.
// A record with a bad class type doesn't deserve to exist. It must be purged!
if(isset($hasDbChild[$actualChild])) {
$child = $hasDbChild[$actualChild];
if( ($child->class != 'Folder' && is_dir($baseDir . $actualChild))
|| ($child->class == 'Folder' && !is_dir($baseDir . $actualChild)) ) {
DB::query("DELETE FROM `File` WHERE ID = $child->ID");
unset($hasDbChild[$actualChild]);
}
}
if(isset($hasDbChild[$actualChild])) {
$child = $hasDbChild[$actualChild];
unset($unwantedDbChildren[$actualChild]);
} else {
$added++;
$childID = $this->constructChild($actualChild);
$child = DataObject::get_by_id("File", $childID);
}
if( $child && is_dir($baseDir . $actualChild)) {
$childResult = $child->syncChildren();
$added += $childResult['added'];
$deleted += $childResult['deleted'];
}
}
// Iterate through the unwanted children, removing them all
if(isset($unwantedDbChildren)) foreach($unwantedDbChildren as $unwantedDbChild) {
DB::query("DELETE FROM `File` WHERE ID = $unwantedDbChild->ID");
$deleted++;
}
} else {
DB::query("DELETE FROM `File` WHERE ID = $this->ID");
}
return array('added' => $added, 'deleted' => $deleted);
}
/**
* Construct a child of this Folder with the given name.
* It does this without actually using the object model, as this starts messing
* with all the data. Rather, it does a direct database insert.
*/
function constructChild($name) {
// Determine the class name - File, Folder or Image
$baseDir = $this->FullPath;
if(is_dir($baseDir . $name)) {
$className = "Folder";
} else {
// Could use getimagesize to get the type of the image
$ext = strtolower(substr($name,strrpos($name,'.')+1));
switch($ext) {
case "gif": case "jpg": case "jpeg": case "png": $className = "Image"; break;
default: $className = "File";
}
}
if(Member::currentUser()) $ownerID = Member::currentUser()->ID;
else $ownerID = 0;
$filename = addslashes($this->Filename . $name);
if($className == 'Folder' ) $filename .= '/';
$name = addslashes($name);
DB::query("INSERT INTO `File` SET
ClassName = '$className', ParentID = $this->ID, OwnerID = $ownerID,
Name = '$name', Filename = '$filename', Created = NOW(), LastEdited = NOW(),
Title = '$name'");
return DB::getGeneratedID("File");
}
/**
* Take a file uploaded via a POST form, and save it inside this folder.
*/
function addUploadToFolder($tmpFile) {
if(!is_array($tmpFile)) {
user_error("File::loadUploaded() Not passed an array. Most likely, the form hasn't got the right enctype", E_USER_ERROR);
}
if(!$tmpFile['size']) {
return;
}
$base = dirname(dirname($_SERVER['SCRIPT_FILENAME']));
// $parentFolder = Folder::findOrMake("Uploads");
// Generate default filename
$file = str_replace(' ', '-',$tmpFile['name']);
$file = ereg_replace('[^A-Za-z0-9+.-]+','',$file);
$file = ereg_replace('-+', '-',$file);
$file = $this->RelativePath . $file;
Filesystem::makeFolder(dirname("$base/$file"));
while(file_exists("$base/$file")) {
$i = isset($i) ? ($i+1) : 2;
$oldFile = $file;
$file = ereg_replace('[0-9]*(\.[^.]+$)',$i . '\\1', $file);
if($oldFile == $file && $i > 2) user_error("Couldn't fix $file with $i", E_USER_ERROR);
}
if(file_exists($tmpFile['tmp_name']) && copy($tmpFile['tmp_name'], "$base/$file")) {
// Update with the new image
return $this->constructChild(basename($file));
} else {
user_error("File::loadUploaded: Couldn't copy '$tmpFile[tmp_name]' to '$file'", E_USER_ERROR);
return false;
}
}
//-------------------------------------------------------------------------------------------------
// Data Model Definition
function getRelativePath() {
return parent::getRelativePath() . "/";
}
function onBeforeDelete() {
if($children = $this->AllChildren()) {
foreach($children as $child) {
if(!$this->Filename || !$this->Name || !file_exists($this->getFullPath())) {
$child->setField('Name',null);
$child->Filename = null;
}
$child->delete();
}
}
// Do this after so a folder's contents are removed before we delete the folder.
if($this->Filename && $this->Name && file_exists($this->getFullPath())) {
$files = glob( $this->getFullPath() . '/*' );
if( !$files || ( count( $files ) == 1 && preg_match( '/\/_resampled$/', $files[0] ) ) )
Filesystem::removeFolder( $this->getFullPath() );
}
parent::onBeforeDelete();
}
/**
* Delete the database record (recursively for folders) without touching the filesystem
*/
function deleteDatabaseOnly() {
if($children = $this->myChildren()) {
foreach($children as $child) $child->deleteDatabaseOnly();
}
parent::deleteDatabaseOnly();
}
public function myChildren() {
// Ugly, but functional.
$ancestors = ClassInfo::ancestry($this->class);
foreach($ancestors as $i => $a) {
if(isset($baseClass) && $baseClass === -1) {
$baseClass = $a;
break;
}
if($a == "DataObject") $baseClass = -1;
}
$g = DataObject::get($baseClass, "ParentID = " . $this->ID);
return $g;
}
/**
* Returns true if this folder has children
*/
public function hasChildren() {
return $this->myChildren() && $this->myChildren()->Count() > 0;
}
/**
* Overload autosetFilename() to call autosetFilename() on all the children, too
*/
public function autosetFilename() {
parent::autosetFilename();
if($children = $this->AllChildren()) {
$this->write();
foreach($children as $child) {
$child->autosetFilename();
$child->write();
}
}
}
/**
* Overload resetFilename() to call resetFilename() on all the children, too.
* Pass renamePhysicalFile = false, since the folder renaming will have taken care of this
*/
protected function resetFilename($renamePhysicalFile = true) {
parent::resetFilename($renamePhysicalFile);
if($children = $this->AllChildren()) {
$this->write();
foreach($children as $child) {
$child->resetFilename(false);
$child->write();
}
}
}
/**
* This isn't a decendant of SiteTree, but needs this in case
* the group is "reorganised";
*/
function cmsCleanup_parentChanged(){
}
/**
* Since this is a folder, we don't have any content as such.
*/
function loadContent() {
return;
}
}
?>