class/uploadclass.php
<?php
/**
* You may not change or alter any portion of this comment or credits
* of supporting developers from this source code or any supporting source code
* which is considered copyrighted (c) material of the original comment or credit authors.
*
* This program 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.
*/
/**
* SmallWorld
*
* @copyright The XOOPS Project (https://xoops.org)
* @copyright 2011 Culex
* @license GNU GPL (http://www.gnu.org/licenses/gpl-2.0.html/)
* @package SmallWorld
* @since 1.0
* @author Michael Albertsen (http://culex.dk) <culex@culex.dk>
*/
class SmallworldUploadHandler
{
private $upload_dir;
private $upload_url;
private $thumbnails_dir;
private $thumbnails_url;
private $thumbnail_max_width;
private $thumbnail_max_height;
private $field_name;
/**
* SmallworldUploadHandler constructor.
* @param $options
*/
public function __construct($options)
{
$this->upload_dir = $options['upload_dir'];
$this->upload_url = $options['upload_url'];
$this->thumbnails_dir = $options['thumbnails_dir'];
$this->thumbnails_url = $options['thumbnails_url'];
$this->thumbnail_max_width = $options['thumbnail_max_width'];
$this->thumbnail_max_height = $options['thumbnail_max_height'];
$this->field_name = $options['field_name'];
}
/**
* @param $file_name
* @return null|\stdClass
*/
private function get_file_object($file_name)
{
$file_path = $this->upload_dir . $file_name;
if (is_file($file_path) && '.' !== $file_name[0] && 'index.html' !== $file_name && 'Thumbs.db' !== $file_name) {
$file = new stdClass();
$file->name = $file_name;
$file->size = filesize($file_path);
$file->url = $this->upload_url . rawurlencode($file->name);
$file->thumbnail = is_file($this->thumbnails_dir . $file_name) ? $this->thumbnails_url . rawurlencode($file->name) : null;
return $file;
}
return null;
}
/**
* @param $file_name
* @return bool
*/
private function create_thumbnail($file_name)
{
$file_path = $this->upload_dir . $file_name;
$thumbnail_path = $this->thumbnails_dir . $file_name;
list($img_width, $img_height) = @getimagesize($file_path);
if (!$img_width || !$img_height) {
return false;
}
$scale = min($this->thumbnail_max_width / $img_width, $this->thumbnail_max_height / $img_height);
if ($scale > 1) {
$scale = 1;
}
$thumbnail_width = $img_width * $scale;
$thumbnail_height = $img_height * $scale;
$thumbnail_img = @imagecreatetruecolor($thumbnail_width, $thumbnail_height);
switch (strtolower(substr(strrchr($file_name, '.'), 1))) {
case 'jpg':
case 'jpeg':
$src_img = @imagecreatefromjpeg($file_path);
$write_thumbnail = 'imagejpeg';
break;
case 'gif':
$src_img = @imagecreatefromgif($file_path);
$write_thumbnail = 'imagegif';
break;
case 'png':
$src_img = @imagecreatefrompng($file_path);
$write_thumbnail = 'imagepng';
break;
default:
$src_img = $write_thumbnail = null;
}
$success = $src_img && @imagecopyresampled($thumbnail_img, $src_img, 0, 0, 0, 0, $thumbnail_width, $thumbnail_height, $img_width, $img_height)
&& $write_thumbnail($thumbnail_img, $thumbnail_path);
// Free up memory (imagedestroy does not delete files):
@imagedestroy($src_img);
@imagedestroy($thumbnail_img);
return $success;
}
//function to return file extension from a path or file name
/**
* @param $path
* @return mixed
*/
public function getFileExtension($path)
{
$parts = pathinfo($path);
return $parts['extension'];
}
/**
* @param $uploaded_file
* @param $name
* @param $size
* @param $type
* @param $error
* @return \stdClass
*/
private function handle_file_upload($uploaded_file, $name, $size, $type, $error)
{
global $xoopsUser;
$file = new stdClass();
$db = new SmallWorldDB;
$userid = $xoopsUser->getVar('uid');
// Generate new name for file
//$file->name = basename(stripslashes($name));
$file->name = time() . rand(0, 99999) . '.' . $this->getFileExtension($name);
$file->size = (int)$size;
$file->type = $type;
$img = XOOPS_URL . '/uploads/albums_smallworld/' . $userid . '/' . $file->name;
// Save to database for later use
$db->saveImage("'', '" . $userid . "', '" . $file->name . "', '" . addslashes($img) . "', '" . time() . "', ''");
if (!$error && $file->name) {
if ('.' === $file->name[0]) {
$file->name = substr($file->name, 1);
}
$file_path = $this->upload_dir . $file->name;
$append_file = is_file($file_path) && $file->size > filesize($file_path);
clearstatcache();
if ($uploaded_file && is_uploaded_file($uploaded_file)) {
// multipart/formdata uploads (POST method uploads)
if ($append_file) {
file_put_contents($file_path, fopen($uploaded_file, 'r'), FILE_APPEND);
} else {
move_uploaded_file($uploaded_file, $file_path);
}
} else {
// Non-multipart uploads (PUT method support)
file_put_contents($file_path, fopen('php://input', 'r'), $append_file ? FILE_APPEND : 0);
}
$file_size = filesize($file_path);
if ($file_size === $file->size) {
$file->url = $this->upload_url . rawurlencode($file->name);
$file->thumbnail = $this->create_thumbnail($file->name) ? $this->thumbnails_url . rawurlencode($file->name) : null;
}
$file->size = $file_size;
} else {
$file->error = $error;
}
return $file;
}
public function get()
{
$file_name = isset($_REQUEST['file']) ? basename(stripslashes($_REQUEST['file'])) : null;
if ($file_name) {
$info = $this->get_file_object($file_name);
} else {
$info = array_values(array_filter(array_map([$this, 'get_file_object'], scandir($this->upload_dir, SCANDIR_SORT_NONE))));
}
header('Cache-Control: no-cache, must-revalidate');
header('Content-type: application/json');
echo json_encode($info);
}
public function post()
{
$upload = isset($_FILES[$this->field_name]) ? $_FILES[$this->field_name] : [
'tmp_name' => null,
'name' => null,
'size' => null,
'type' => null,
'error' => null
];
if (is_array($upload['tmp_name']) && count($upload['tmp_name']) > 1) {
$info = [];
foreach ($upload['tmp_name'] as $index => $value) {
$info[] = $this->handle_file_upload($upload['tmp_name'][$index], $upload['name'][$index], $upload['size'][$index], $upload['type'][$index], $upload['error'][$index]);
}
} else {
if (is_array($upload['tmp_name'])) {
$upload = [
'tmp_name' => $upload['tmp_name'][0],
'name' => $upload['name'][0],
'size' => $upload['size'][0],
'type' => $upload['type'][0],
'error' => $upload['error'][0]
];
}
$info = $this->handle_file_upload(
$upload['tmp_name'],
isset($_SERVER['HTTP_X_FILE_NAME']) ? $_SERVER['HTTP_X_FILE_NAME'] : $upload['name'],
isset($_SERVER['HTTP_X_FILE_SIZE']) ? $_SERVER['HTTP_X_FILE_SIZE'] : $upload['size'],
isset($_SERVER['HTTP_X_FILE_TYPE']) ? $_SERVER['HTTP_X_FILE_TYPE'] : $upload['type'],
$upload['error']
);
}
if (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && 'XMLHttpRequest' === $_SERVER['HTTP_X_REQUESTED_WITH']) {
header('Content-type: application/json');
} else {
header('Content-type: text/plain');
}
echo json_encode($info);
}
public function delete()
{
global $xoopsUser;
$userid = $xoopsUser->getVar('uid');
$db = new SmallWorldDB;
$file_name = isset($_REQUEST['file']) ? basename(stripslashes($_REQUEST['file'])) : null;
$file_path = $this->upload_dir . $file_name;
$img = XOOPS_URL . '/uploads/albums_smallworld/' . $userid . '/' . $file->name;
// Delete file based on user and filename
$db->DeleteImage($userid, $file_name);
$db->DeleteImage($userid, 'Thumbs.db');
$thumbnail_path = $this->thumbnails_dir . $file_name;
$success = is_file($file_path) && '.' !== $file_name[0] && unlink($file_path);
if ($success && is_file($thumbnail_path)) {
unlink($thumbnail_path);
}
header('Content-type: application/json');
echo json_encode($success);
}
}