* array("jpg","GIF")
*
*
* @var array
*/
public $allowedExtensions = array();
/**
* Processing errors that can be evaluated,
* e.g. by Form-validation.
*
* @var array
*/
protected $errors = array();
/**
* A foldername relative to /assets,
* where all uploaded files are stored by default.
*
* @var string
*/
public static $uploads_folder = "Uploads";
/**
* Save an file passed from a form post into this object.
*
* @param $tmpFile array Indexed array that PHP generated for every file it uploads.
* @param $folderPath string Folder path relative to /assets
* @return Boolean|string Either success or error-message.
*/
function load($tmpFile, $folderPath = false) {
$this->clearErrors();
if(!$folderPath) $folderPath = self::$uploads_folder;
if(!$this->file) $this->file = new File();
if(!is_array($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']) {
$this->errors[] = _t('File.NOFILESIZE', 'Filesize is zero bytes.');
return false;
}
$valid = $this->validate($tmpFile);
if(!$valid) return false;
// @TODO This puts a HUGE limitation on files especially when lots
// have been uploaded.
$base = Director::baseFolder();
$parentFolder = Folder::findOrMake($folderPath);
// Create a folder for uploading.
if(!file_exists("$base/assets")){
mkdir("$base/assets", Filesystem::$folder_create_mask);
}
if(!file_exists("$base/assets/" . $folderPath)){
mkdir("$base/assets/" . $folderPath, Filesystem::$folder_create_mask);
}
// Generate default filename
$fileName = str_replace(' ', '-',$tmpFile['name']);
$fileName = ereg_replace('[^A-Za-z0-9+.-]+','',$fileName);
$fileName = ereg_replace('-+', '-',$fileName);
$fileName = basename($fileName);
$relativeFilePath = "assets/" . $folderPath . "/$fileName";
// if filename already exists, version the filename (e.g. test.gif to test1.gif)
while(file_exists("$base/$relativeFilePath")) {
$i = isset($i) ? ($i+1) : 2;
$oldFilePath = $relativeFilePath;
// make sure archives retain valid extensions
if(substr($relativeFilePath, strlen($relativeFilePath) - strlen('.tar.gz')) == '.tar.gz' ||
substr($relativeFilePath, strlen($relativeFilePath) - strlen('.tar.bz2')) == '.tar.bz2') {
$relativeFilePath = ereg_replace('[0-9]*(\.tar\.[^.]+$)',$i . '\\1', $relativeFilePath);
} else {
$relativeFilePath = ereg_replace('[0-9]*(\.[^.]+$)',$i . '\\1', $relativeFilePath);
}
if($oldFilePath == $relativeFilePath && $i > 2) user_error("Couldn't fix $relativeFilePath with $i tries", E_USER_ERROR);
}
if(file_exists($tmpFile['tmp_name']) && copy($tmpFile['tmp_name'], "$base/$relativeFilePath")) {
$this->file->ParentID = $parentFolder->ID;
// This is to prevent it from trying to rename the file
$this->file->Name = basename($relativeFilePath);
$this->file->write();
return true;
} else {
$this->errors[] = _t('File.NOFILESIZE', 'Filesize is zero bytes.');
return false;
}
}
/**
* Load temporary PHP-upload into File-object.
*
* @param array $tmpFile
* @param File $file
* @return Boolean
*/
public function loadIntoFile($tmpFile, $file) {
$this->file = $file;
return $this->load($tmpFile);
}
/**
* Container for all validation on the file
* (e.g. size and extension restrictions).
* Is NOT connected to the {Validator} classes,
* please have a look at {FileField->validate()}
* for an example implementation of external validation.
*
* @param array $tmpFile
* @return boolean
*/
public function validate($tmpFile) {
// we don't validate for empty upload fields yet
if(!isset($tmpFile['name']) || empty($tmpFile['name'])) return true;
$pathInfo = pathinfo($tmpFile['name']);
// filesize validation
if(!$this->isValidSize($tmpFile)) {
$this->errors[] = sprintf(
_t(
'File.TOOLARGE',
'Filesize is too large, maximum %s allowed.',
PR_MEDIUM,
'Argument 1: Filesize (e.g. 1MB)'
),
File::format_size($this->getAllowedMaxFileSize($pathInfo['extension']))
);
return false;
}
// extension validation
if(!$this->isValidExtension($tmpFile)) {
$this->errors[] = sprintf(
_t(
'File.INVALIDEXTENSION',
'Extension is not allowed (valid: %s)',
PR_MEDIUM,
'Argument 1: Comma-separated list of valid extensions'
),
implode(',',$this->allowedExtensions)
);
return false;
}
return true;
}
/**
* Get file-object, either generated from {load()},
* or manually set.
*
* @return File
*/
public function getFile() {
return $this->file;
}
/**
* Set a file-object (similiar to {loadIntoFile()})
*
* @param File $file
*/
public function setFile($file) {
$this->file = $file;
}
/**
* Get maximum file size for all or specified file extension.
*
* @param string $ext
* @return int Filesize in bytes
*/
public function getAllowedMaxFileSize($ext = null) {
$ext = strtolower($ext);
if(isset($ext) && isset($this->allowedMaxFileSize[$ext])) {
return $this->allowedMaxFileSize[$ext];
} else {
return (isset($this->allowedMaxFileSize['*'])) ? $this->allowedMaxFileSize['*'] : false;
}
}
/**
* Set filesize maximums (in bytes).
* Automatically converts extensions to lowercase
* for easier matching.
*
* Example:
*
* array('*' => 200, 'jpg' => 1000)
*
*
* @param array|int $rules
*/
public function setAllowedMaxFileSize($rules) {
if(is_array($rules) && count($rules)) {
// make sure all extensions are lowercase
$rules = array_change_key_case($rules, CASE_LOWER);
$this->allowedMaxFileSize = $rules;
} elseif((int)$rules > 0) {
$this->allowedMaxFileSize['*'] = (int)$rules;
}
}
/**
* @return array
*/
public function getAllowedExtensions() {
return $this->allowedExtensions;
}
/**
* @param array $rules
*/
public function setAllowedExtensions($rules) {
if(!is_array($rules)) return false;
// make sure all rules are lowercase
foreach($rules as &$rule) $rule = strtolower($rule);
$this->allowedExtensions = $rules;
}
/**
* Determines if the bytesize of an uploaded
* file is valid - can be defined on an
* extension-by-extension basis in {$allowedMaxFileSize}
*
* @param array $tmpFile
* @return boolean
*/
public function isValidSize($tmpFile) {
$pathInfo = pathinfo($tmpFile['name']);
$maxSize = $this->getAllowedMaxFileSize(strtolower($pathInfo['extension']));
return (!$tmpFile['size'] || !$maxSize || (int)$tmpFile['size'] < $maxSize);
}
/**
* Determines if the temporary file has a valid extension
*
* @param array $tmpFile
* @return boolean
*/
public function isValidExtension($tmpFile) {
$pathInfo = pathinfo($tmpFile['name']);
return (!count($this->allowedExtensions) || array_key_exists(strtolower($pathInfo['extension']), $this->allowedExtensions));
}
/**
* Clear out all errors (mostly set by {loadUploaded()})
*/
public function clearErrors() {
$this->errors = array();
}
/**
* Determines wether previous operations caused an error.
*
* @return boolean
*/
public function isError() {
return (count($this->errors));
}
/**
* Return all errors that occurred while processing so far
* (mostly set by {loadUploaded()})
*
* @return array
*/
public function getErrors() {
return $this->errors;
}
}
?>