Files
development/www/lib/FileUpload/qqFileUploader.php
2019-09-13 16:08:49 +09:00

112 lines
2.8 KiB
PHP
Executable File

<?php
namespace FileUpload;
use \FileUpload\Core;
class qqFileUploader
{
private $allowedExtensions = array();
private $sizeLimit = 10485760;
private $file;
public function __construct(array $allowedExtensions = array(), $sizeLimit = 10485760)
{
$allowedExtensions = array_map("strtolower", $allowedExtensions);
$this->allowedExtensions = $allowedExtensions;
$this->sizeLimit = $sizeLimit;
$this->checkServerSettings();
if (isset($_GET['qqfile'])) {
$this->file = new \FileUpload\Core\qqUploadedFileXhr();
} elseif (isset($_FILES['qqfile'])) {
$this->file = new \FileUpload\Core\qqUploadedFileForm();
} else {
$this->file = false;
}
}
private function checkServerSettings()
{
$postSize = $this->toBytes(ini_get('post_max_size'));
$uploadSize = $this->toBytes(ini_get('upload_max_filesize'));
if ($postSize < $this->sizeLimit || $uploadSize < $this->sizeLimit) {
$size = max(1, $this->sizeLimit / 1024 / 1024) . 'M';
die("{'error':'increase post_max_size and upload_max_filesize to $size'}");
}
}
private function toBytes($str)
{
$val = trim($str);
$last = strtolower($str[strlen($str)-1]);
switch ($last) {
case 'g':
$val *= 1024;
// no break
case 'm':
$val *= 1024;
// no break
case 'k':
$val *= 1024;
}
return $val;
}
/**
* Returns array('success'=>true) or array('error'=>'error message')
*/
public function handleUpload($uploadDirectory, $replaceOldFile = false)
{
if (!is_writable($uploadDirectory)) {
return array('error' => "Server error. Upload directory isn't writable.");
}
if (!$this->file) {
return array('error' => 'No files were uploaded.');
}
$size = $this->file->getSize();
if ($size == 0) {
return array('error' => 'File is empty');
}
if ($size > $this->sizeLimit) {
return array('error' => 'File is too large');
}
$pathinfo = pathinfo($this->file->getName());
$filename = $pathinfo['filename'];
//$filename = md5(uniqid());
$ext = $pathinfo['extension'];
if ($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)) {
$these = implode(', ', $this->allowedExtensions);
return array('error' => 'File has an invalid extension, it should be one of '. $these . '.');
}
if (!$replaceOldFile) {
/// don't overwrite previous files that were uploaded
while (file_exists($uploadDirectory . $filename . '.' . $ext)) {
$filename .= rand(10, 99);
}
}
$this->uploadFileName = $uploadDirectory . $filename . '.' . $ext;
$this->uploadFileExt = $ext;
if ($this->file->save($uploadDirectory . $filename . '.' . $ext)) {
return array('success' => true);
} else {
return array('error' => 'Could not save uploaded file.' .
'The upload was cancelled, or server error encountered');
}
}
}
// __END__