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-rw-r--r--library/jqupload/server/php/UploadHandler.php1329
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diff --git a/library/jqupload/server/php/UploadHandler.php b/library/jqupload/server/php/UploadHandler.php
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+<?php
+/*
+ * jQuery File Upload Plugin PHP Class 7.1.3
+ * https://github.com/blueimp/jQuery-File-Upload
+ *
+ * Copyright 2010, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * http://www.opensource.org/licenses/MIT
+ */
+
+class UploadHandler
+{
+
+ protected $options;
+
+ // PHP File Upload error message codes:
+ // http://php.net/manual/en/features.file-upload.errors.php
+ protected $error_messages = array(
+ 1 => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
+ 2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
+ 3 => 'The uploaded file was only partially uploaded',
+ 4 => 'No file was uploaded',
+ 6 => 'Missing a temporary folder',
+ 7 => 'Failed to write file to disk',
+ 8 => 'A PHP extension stopped the file upload',
+ 'post_max_size' => 'The uploaded file exceeds the post_max_size directive in php.ini',
+ 'max_file_size' => 'File is too big',
+ 'min_file_size' => 'File is too small',
+ 'accept_file_types' => 'Filetype not allowed',
+ 'max_number_of_files' => 'Maximum number of files exceeded',
+ 'max_width' => 'Image exceeds maximum width',
+ 'min_width' => 'Image requires a minimum width',
+ 'max_height' => 'Image exceeds maximum height',
+ 'min_height' => 'Image requires a minimum height',
+ 'abort' => 'File upload aborted',
+ 'image_resize' => 'Failed to resize image'
+ );
+
+ protected $image_objects = array();
+
+ function __construct($options = null, $initialize = true, $error_messages = null) {
+ $this->options = array(
+ 'script_url' => $this->get_full_url().'/',
+ 'upload_dir' => dirname($this->get_server_var('SCRIPT_FILENAME')).'/files/',
+ 'upload_url' => $this->get_full_url().'/files/',
+ 'user_dirs' => false,
+ 'mkdir_mode' => 0755,
+ 'param_name' => 'files',
+ // Set the following option to 'POST', if your server does not support
+ // DELETE requests. This is a parameter sent to the client:
+ 'delete_type' => 'DELETE',
+ 'access_control_allow_origin' => '*',
+ 'access_control_allow_credentials' => false,
+ 'access_control_allow_methods' => array(
+ 'OPTIONS',
+ 'HEAD',
+ 'GET',
+ 'POST',
+ 'PUT',
+ 'PATCH',
+ 'DELETE'
+ ),
+ 'access_control_allow_headers' => array(
+ 'Content-Type',
+ 'Content-Range',
+ 'Content-Disposition'
+ ),
+ // Enable to provide file downloads via GET requests to the PHP script:
+ // 1. Set to 1 to download files via readfile method through PHP
+ // 2. Set to 2 to send a X-Sendfile header for lighttpd/Apache
+ // 3. Set to 3 to send a X-Accel-Redirect header for nginx
+ // If set to 2 or 3, adjust the upload_url option to the base path of
+ // the redirect parameter, e.g. '/files/'.
+ 'download_via_php' => false,
+ // Read files in chunks to avoid memory limits when download_via_php
+ // is enabled, set to 0 to disable chunked reading of files:
+ 'readfile_chunk_size' => 10 * 1024 * 1024, // 10 MiB
+ // Defines which files can be displayed inline when downloaded:
+ 'inline_file_types' => '/\.(gif|jpe?g|png)$/i',
+ // Defines which files (based on their names) are accepted for upload:
+ 'accept_file_types' => '/.+$/i',
+ // The php.ini settings upload_max_filesize and post_max_size
+ // take precedence over the following max_file_size setting:
+ 'max_file_size' => null,
+ 'min_file_size' => 1,
+ // The maximum number of files for the upload directory:
+ 'max_number_of_files' => null,
+ // Defines which files are handled as image files:
+ 'image_file_types' => '/\.(gif|jpe?g|png)$/i',
+ // Image resolution restrictions:
+ 'max_width' => null,
+ 'max_height' => null,
+ 'min_width' => 1,
+ 'min_height' => 1,
+ // Set the following option to false to enable resumable uploads:
+ 'discard_aborted_uploads' => true,
+ // Set to 0 to use the GD library to scale and orient images,
+ // set to 1 to use imagick (if installed, falls back to GD),
+ // set to 2 to use the ImageMagick convert binary directly:
+ 'image_library' => 1,
+ // Uncomment the following to define an array of resource limits
+ // for imagick:
+ /*
+ 'imagick_resource_limits' => array(
+ imagick::RESOURCETYPE_MAP => 32,
+ imagick::RESOURCETYPE_MEMORY => 32
+ ),
+ */
+ // Command or path for to the ImageMagick convert binary:
+ 'convert_bin' => 'convert',
+ // Uncomment the following to add parameters in front of each
+ // ImageMagick convert call (the limit constraints seem only
+ // to have an effect if put in front):
+ /*
+ 'convert_params' => '-limit memory 32MiB -limit map 32MiB',
+ */
+ // Command or path for to the ImageMagick identify binary:
+ 'identify_bin' => 'identify',
+ 'image_versions' => array(
+ // The empty image version key defines options for the original image:
+ '' => array(
+ // Automatically rotate images based on EXIF meta data:
+ 'auto_orient' => true
+ ),
+ // Uncomment the following to create medium sized images:
+ /*
+ 'medium' => array(
+ 'max_width' => 800,
+ 'max_height' => 600
+ ),
+ */
+ 'thumbnail' => array(
+ // Uncomment the following to use a defined directory for the thumbnails
+ // instead of a subdirectory based on the version identifier.
+ // Make sure that this directory doesn't allow execution of files if you
+ // don't pose any restrictions on the type of uploaded files, e.g. by
+ // copying the .htaccess file from the files directory for Apache:
+ //'upload_dir' => dirname($this->get_server_var('SCRIPT_FILENAME')).'/thumb/',
+ //'upload_url' => $this->get_full_url().'/thumb/',
+ // Uncomment the following to force the max
+ // dimensions and e.g. create square thumbnails:
+ //'crop' => true,
+ 'max_width' => 80,
+ 'max_height' => 80
+ )
+ )
+ );
+ if ($options) {
+ $this->options = $options + $this->options;
+ }
+ if ($error_messages) {
+ $this->error_messages = $error_messages + $this->error_messages;
+ }
+ if ($initialize) {
+ $this->initialize();
+ }
+ }
+
+ protected function initialize() {
+ switch ($this->get_server_var('REQUEST_METHOD')) {
+ case 'OPTIONS':
+ case 'HEAD':
+ $this->head();
+ break;
+ case 'GET':
+ $this->get();
+ break;
+ case 'PATCH':
+ case 'PUT':
+ case 'POST':
+ $this->post();
+ break;
+ case 'DELETE':
+ $this->delete();
+ break;
+ default:
+ $this->header('HTTP/1.1 405 Method Not Allowed');
+ }
+ }
+
+ protected function get_full_url() {
+ $https = !empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'on') === 0;
+ return
+ ($https ? 'https://' : 'http://').
+ (!empty($_SERVER['REMOTE_USER']) ? $_SERVER['REMOTE_USER'].'@' : '').
+ (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ($_SERVER['SERVER_NAME'].
+ ($https && $_SERVER['SERVER_PORT'] === 443 ||
+ $_SERVER['SERVER_PORT'] === 80 ? '' : ':'.$_SERVER['SERVER_PORT']))).
+ substr($_SERVER['SCRIPT_NAME'],0, strrpos($_SERVER['SCRIPT_NAME'], '/'));
+ }
+
+ protected function get_user_id() {
+ @session_start();
+ return session_id();
+ }
+
+ protected function get_user_path() {
+ if ($this->options['user_dirs']) {
+ return $this->get_user_id().'/';
+ }
+ return '';
+ }
+
+ protected function get_upload_path($file_name = null, $version = null) {
+ $file_name = $file_name ? $file_name : '';
+ if (empty($version)) {
+ $version_path = '';
+ } else {
+ $version_dir = @$this->options['image_versions'][$version]['upload_dir'];
+ if ($version_dir) {
+ return $version_dir.$this->get_user_path().$file_name;
+ }
+ $version_path = $version.'/';
+ }
+ return $this->options['upload_dir'].$this->get_user_path()
+ .$version_path.$file_name;
+ }
+
+ protected function get_query_separator($url) {
+ return strpos($url, '?') === false ? '?' : '&';
+ }
+
+ protected function get_download_url($file_name, $version = null, $direct = false) {
+ if (!$direct && $this->options['download_via_php']) {
+ $url = $this->options['script_url']
+ .$this->get_query_separator($this->options['script_url'])
+ .$this->get_singular_param_name()
+ .'='.rawurlencode($file_name);
+ if ($version) {
+ $url .= '&version='.rawurlencode($version);
+ }
+ return $url.'&download=1';
+ }
+ if (empty($version)) {
+ $version_path = '';
+ } else {
+ $version_url = @$this->options['image_versions'][$version]['upload_url'];
+ if ($version_url) {
+ return $version_url.$this->get_user_path().rawurlencode($file_name);
+ }
+ $version_path = rawurlencode($version).'/';
+ }
+ return $this->options['upload_url'].$this->get_user_path()
+ .$version_path.rawurlencode($file_name);
+ }
+
+ protected function set_additional_file_properties($file) {
+ $file->deleteUrl = $this->options['script_url']
+ .$this->get_query_separator($this->options['script_url'])
+ .$this->get_singular_param_name()
+ .'='.rawurlencode($file->name);
+ $file->deleteType = $this->options['delete_type'];
+ if ($file->deleteType !== 'DELETE') {
+ $file->deleteUrl .= '&_method=DELETE';
+ }
+ if ($this->options['access_control_allow_credentials']) {
+ $file->deleteWithCredentials = true;
+ }
+ }
+
+ // Fix for overflowing signed 32 bit integers,
+ // works for sizes up to 2^32-1 bytes (4 GiB - 1):
+ protected function fix_integer_overflow($size) {
+ if ($size < 0) {
+ $size += 2.0 * (PHP_INT_MAX + 1);
+ }
+ return $size;
+ }
+
+ protected function get_file_size($file_path, $clear_stat_cache = false) {
+ if ($clear_stat_cache) {
+ if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
+ clearstatcache(true, $file_path);
+ } else {
+ clearstatcache();
+ }
+ }
+ return $this->fix_integer_overflow(filesize($file_path));
+ }
+
+ protected function is_valid_file_object($file_name) {
+ $file_path = $this->get_upload_path($file_name);
+ if (is_file($file_path) && $file_name[0] !== '.') {
+ return true;
+ }
+ return false;
+ }
+
+ protected function get_file_object($file_name) {
+ if ($this->is_valid_file_object($file_name)) {
+ $file = new stdClass();
+ $file->name = $file_name;
+ $file->size = $this->get_file_size(
+ $this->get_upload_path($file_name)
+ );
+ $file->url = $this->get_download_url($file->name);
+ foreach($this->options['image_versions'] as $version => $options) {
+ if (!empty($version)) {
+ if (is_file($this->get_upload_path($file_name, $version))) {
+ $file->{$version.'Url'} = $this->get_download_url(
+ $file->name,
+ $version
+ );
+ }
+ }
+ }
+ $this->set_additional_file_properties($file);
+ return $file;
+ }
+ return null;
+ }
+
+ protected function get_file_objects($iteration_method = 'get_file_object') {
+ $upload_dir = $this->get_upload_path();
+ if (!is_dir($upload_dir)) {
+ return array();
+ }
+ return array_values(array_filter(array_map(
+ array($this, $iteration_method),
+ scandir($upload_dir)
+ )));
+ }
+
+ protected function count_file_objects() {
+ return count($this->get_file_objects('is_valid_file_object'));
+ }
+
+ protected function get_error_message($error) {
+ return array_key_exists($error, $this->error_messages) ?
+ $this->error_messages[$error] : $error;
+ }
+
+ function get_config_bytes($val) {
+ $val = trim($val);
+ $last = strtolower($val[strlen($val)-1]);
+ switch($last) {
+ case 'g':
+ $val *= 1024;
+ case 'm':
+ $val *= 1024;
+ case 'k':
+ $val *= 1024;
+ }
+ return $this->fix_integer_overflow($val);
+ }
+
+ protected function validate($uploaded_file, $file, $error, $index) {
+ if ($error) {
+ $file->error = $this->get_error_message($error);
+ return false;
+ }
+ $content_length = $this->fix_integer_overflow(intval(
+ $this->get_server_var('CONTENT_LENGTH')
+ ));
+ $post_max_size = $this->get_config_bytes(ini_get('post_max_size'));
+ if ($post_max_size && ($content_length > $post_max_size)) {
+ $file->error = $this->get_error_message('post_max_size');
+ return false;
+ }
+ if (!preg_match($this->options['accept_file_types'], $file->name)) {
+ $file->error = $this->get_error_message('accept_file_types');
+ return false;
+ }
+ if ($uploaded_file && is_uploaded_file($uploaded_file)) {
+ $file_size = $this->get_file_size($uploaded_file);
+ } else {
+ $file_size = $content_length;
+ }
+ if ($this->options['max_file_size'] && (
+ $file_size > $this->options['max_file_size'] ||
+ $file->size > $this->options['max_file_size'])
+ ) {
+ $file->error = $this->get_error_message('max_file_size');
+ return false;
+ }
+ if ($this->options['min_file_size'] &&
+ $file_size < $this->options['min_file_size']) {
+ $file->error = $this->get_error_message('min_file_size');
+ return false;
+ }
+ if (is_int($this->options['max_number_of_files']) && (
+ $this->count_file_objects() >= $this->options['max_number_of_files'])
+ ) {
+ $file->error = $this->get_error_message('max_number_of_files');
+ return false;
+ }
+ $max_width = @$this->options['max_width'];
+ $max_height = @$this->options['max_height'];
+ $min_width = @$this->options['min_width'];
+ $min_height = @$this->options['min_height'];
+ if (($max_width || $max_height || $min_width || $min_height)) {
+ list($img_width, $img_height) = $this->get_image_size($uploaded_file);
+ }
+ if (!empty($img_width)) {
+ if ($max_width && $img_width > $max_width) {
+ $file->error = $this->get_error_message('max_width');
+ return false;
+ }
+ if ($max_height && $img_height > $max_height) {
+ $file->error = $this->get_error_message('max_height');
+ return false;
+ }
+ if ($min_width && $img_width < $min_width) {
+ $file->error = $this->get_error_message('min_width');
+ return false;
+ }
+ if ($min_height && $img_height < $min_height) {
+ $file->error = $this->get_error_message('min_height');
+ return false;
+ }
+ }
+ return true;
+ }
+
+ protected function upcount_name_callback($matches) {
+ $index = isset($matches[1]) ? intval($matches[1]) + 1 : 1;
+ $ext = isset($matches[2]) ? $matches[2] : '';
+ return ' ('.$index.')'.$ext;
+ }
+
+ protected function upcount_name($name) {
+ return preg_replace_callback(
+ '/(?:(?: \(([\d]+)\))?(\.[^.]+))?$/',
+ array($this, 'upcount_name_callback'),
+ $name,
+ 1
+ );
+ }
+
+ protected function get_unique_filename($file_path, $name, $size, $type, $error,
+ $index, $content_range) {
+ while(is_dir($this->get_upload_path($name))) {
+ $name = $this->upcount_name($name);
+ }
+ // Keep an existing filename if this is part of a chunked upload:
+ $uploaded_bytes = $this->fix_integer_overflow(intval($content_range[1]));
+ while(is_file($this->get_upload_path($name))) {
+ if ($uploaded_bytes === $this->get_file_size(
+ $this->get_upload_path($name))) {
+ break;
+ }
+ $name = $this->upcount_name($name);
+ }
+ return $name;
+ }
+
+ protected function trim_file_name($file_path, $name, $size, $type, $error,
+ $index, $content_range) {
+ // Remove path information and dots around the filename, to prevent uploading
+ // into different directories or replacing hidden system files.
+ // Also remove control characters and spaces (\x00..\x20) around the filename:
+ $name = trim(basename(stripslashes($name)), ".\x00..\x20");
+ // Use a timestamp for empty filenames:
+ if (!$name) {
+ $name = str_replace('.', '-', microtime(true));
+ }
+ // Add missing file extension for known image types:
+ if (strpos($name, '.') === false &&
+ preg_match('/^image\/(gif|jpe?g|png)/', $type, $matches)) {
+ $name .= '.'.$matches[1];
+ }
+ if (function_exists('exif_imagetype')) {
+ switch(@exif_imagetype($file_path)){
+ case IMAGETYPE_JPEG:
+ $extensions = array('jpg', 'jpeg');
+ break;
+ case IMAGETYPE_PNG:
+ $extensions = array('png');
+ break;
+ case IMAGETYPE_GIF:
+ $extensions = array('gif');
+ break;
+ }
+ // Adjust incorrect image file extensions:
+ if (!empty($extensions)) {
+ $parts = explode('.', $name);
+ $extIndex = count($parts) - 1;
+ $ext = strtolower(@$parts[$extIndex]);
+ if (!in_array($ext, $extensions)) {
+ $parts[$extIndex] = $extensions[0];
+ $name = implode('.', $parts);
+ }
+ }
+ }
+ return $name;
+ }
+
+ protected function get_file_name($file_path, $name, $size, $type, $error,
+ $index, $content_range) {
+ return $this->get_unique_filename(
+ $file_path,
+ $this->trim_file_name($file_path, $name, $size, $type, $error,
+ $index, $content_range),
+ $size,
+ $type,
+ $error,
+ $index,
+ $content_range
+ );
+ }
+
+ protected function handle_form_data($file, $index) {
+ // Handle form data, e.g. $_REQUEST['description'][$index]
+ }
+
+ protected function get_scaled_image_file_paths($file_name, $version) {
+ $file_path = $this->get_upload_path($file_name);
+ if (!empty($version)) {
+ $version_dir = $this->get_upload_path(null, $version);
+ if (!is_dir($version_dir)) {
+ mkdir($version_dir, $this->options['mkdir_mode'], true);
+ }
+ $new_file_path = $version_dir.'/'.$file_name;
+ } else {
+ $new_file_path = $file_path;
+ }
+ return array($file_path, $new_file_path);
+ }
+
+ protected function gd_get_image_object($file_path, $func, $no_cache = false) {
+ if (empty($this->image_objects[$file_path]) || $no_cache) {
+ $this->gd_destroy_image_object($file_path);
+ $this->image_objects[$file_path] = $func($file_path);
+ }
+ return $this->image_objects[$file_path];
+ }
+
+ protected function gd_set_image_object($file_path, $image) {
+ $this->gd_destroy_image_object($file_path);
+ $this->image_objects[$file_path] = $image;
+ }
+
+ protected function gd_destroy_image_object($file_path) {
+ $image = @$this->image_objects[$file_path];
+ return $image && imagedestroy($image);
+ }
+
+ protected function gd_imageflip($image, $mode) {
+ if (function_exists('imageflip')) {
+ return imageflip($image, $mode);
+ }
+ $new_width = $src_width = imagesx($image);
+ $new_height = $src_height = imagesy($image);
+ $new_img = imagecreatetruecolor($new_width, $new_height);
+ $src_x = 0;
+ $src_y = 0;
+ switch ($mode) {
+ case '1': // flip on the horizontal axis
+ $src_y = $new_height - 1;
+ $src_height = -$new_height;
+ break;
+ case '2': // flip on the vertical axis
+ $src_x = $new_width - 1;
+ $src_width = -$new_width;
+ break;
+ case '3': // flip on both axes
+ $src_y = $new_height - 1;
+ $src_height = -$new_height;
+ $src_x = $new_width - 1;
+ $src_width = -$new_width;
+ break;
+ default:
+ return $image;
+ }
+ imagecopyresampled(
+ $new_img,
+ $image,
+ 0,
+ 0,
+ $src_x,
+ $src_y,
+ $new_width,
+ $new_height,
+ $src_width,
+ $src_height
+ );
+ return $new_img;
+ }
+
+ protected function gd_orient_image($file_path, $src_img) {
+ if (!function_exists('exif_read_data')) {
+ return false;
+ }
+ $exif = @exif_read_data($file_path);
+ if ($exif === false) {
+ return false;
+ }
+ $orientation = intval(@$exif['Orientation']);
+ if ($orientation < 2 || $orientation > 8) {
+ return false;
+ }
+ switch ($orientation) {
+ case 2:
+ $new_img = $this->gd_imageflip(
+ $src_img,
+ defined('IMG_FLIP_VERTICAL') ? IMG_FLIP_VERTICAL : 2
+ );
+ break;
+ case 3:
+ $new_img = imagerotate($src_img, 180, 0);
+ break;
+ case 4:
+ $new_img = $this->gd_imageflip(
+ $src_img,
+ defined('IMG_FLIP_HORIZONTAL') ? IMG_FLIP_HORIZONTAL : 1
+ );
+ break;
+ case 5:
+ $tmp_img = $this->gd_imageflip(
+ $src_img,
+ defined('IMG_FLIP_HORIZONTAL') ? IMG_FLIP_HORIZONTAL : 1
+ );
+ $new_img = imagerotate($tmp_img, 270, 0);
+ imagedestroy($tmp_img);
+ break;
+ case 6:
+ $new_img = imagerotate($src_img, 270, 0);
+ break;
+ case 7:
+ $tmp_img = $this->gd_imageflip(
+ $src_img,
+ defined('IMG_FLIP_VERTICAL') ? IMG_FLIP_VERTICAL : 2
+ );
+ $new_img = imagerotate($tmp_img, 270, 0);
+ imagedestroy($tmp_img);
+ break;
+ case 8:
+ $new_img = imagerotate($src_img, 90, 0);
+ break;
+ default:
+ return false;
+ }
+ $this->gd_set_image_object($file_path, $new_img);
+ return true;
+ }
+
+ protected function gd_create_scaled_image($file_name, $version, $options) {
+ if (!function_exists('imagecreatetruecolor')) {
+ error_log('Function not found: imagecreatetruecolor');
+ return false;
+ }
+ list($file_path, $new_file_path) =
+ $this->get_scaled_image_file_paths($file_name, $version);
+ $type = strtolower(substr(strrchr($file_name, '.'), 1));
+ switch ($type) {
+ case 'jpg':
+ case 'jpeg':
+ $src_func = 'imagecreatefromjpeg';
+ $write_func = 'imagejpeg';
+ $image_quality = isset($options['jpeg_quality']) ?
+ $options['jpeg_quality'] : 75;
+ break;
+ case 'gif':
+ $src_func = 'imagecreatefromgif';
+ $write_func = 'imagegif';
+ $image_quality = null;
+ break;
+ case 'png':
+ $src_func = 'imagecreatefrompng';
+ $write_func = 'imagepng';
+ $image_quality = isset($options['png_quality']) ?
+ $options['png_quality'] : 9;
+ break;
+ default:
+ return false;
+ }
+ $src_img = $this->gd_get_image_object(
+ $file_path,
+ $src_func,
+ !empty($options['no_cache'])
+ );
+ $image_oriented = false;
+ if (!empty($options['auto_orient']) && $this->gd_orient_image(
+ $file_path,
+ $src_img
+ )) {
+ $image_oriented = true;
+ $src_img = $this->gd_get_image_object(
+ $file_path,
+ $src_func
+ );
+ }
+ $max_width = $img_width = imagesx($src_img);
+ $max_height = $img_height = imagesy($src_img);
+ if (!empty($options['max_width'])) {
+ $max_width = $options['max_width'];
+ }
+ if (!empty($options['max_height'])) {
+ $max_height = $options['max_height'];
+ }
+ $scale = min(
+ $max_width / $img_width,
+ $max_height / $img_height
+ );
+ if ($scale >= 1) {
+ if ($image_oriented) {
+ return $write_func($src_img, $new_file_path, $image_quality);
+ }
+ if ($file_path !== $new_file_path) {
+ return copy($file_path, $new_file_path);
+ }
+ return true;
+ }
+ if (empty($options['crop'])) {
+ $new_width = $img_width * $scale;
+ $new_height = $img_height * $scale;
+ $dst_x = 0;
+ $dst_y = 0;
+ $new_img = imagecreatetruecolor($new_width, $new_height);
+ } else {
+ if (($img_width / $img_height) >= ($max_width / $max_height)) {
+ $new_width = $img_width / ($img_height / $max_height);
+ $new_height = $max_height;
+ } else {
+ $new_width = $max_width;
+ $new_height = $img_height / ($img_width / $max_width);
+ }
+ $dst_x = 0 - ($new_width - $max_width) / 2;
+ $dst_y = 0 - ($new_height - $max_height) / 2;
+ $new_img = imagecreatetruecolor($max_width, $max_height);
+ }
+ // Handle transparency in GIF and PNG images:
+ switch ($type) {
+ case 'gif':
+ case 'png':
+ imagecolortransparent($new_img, imagecolorallocate($new_img, 0, 0, 0));
+ case 'png':
+ imagealphablending($new_img, false);
+ imagesavealpha($new_img, true);
+ break;
+ }
+ $success = imagecopyresampled(
+ $new_img,
+ $src_img,
+ $dst_x,
+ $dst_y,
+ 0,
+ 0,
+ $new_width,
+ $new_height,
+ $img_width,
+ $img_height
+ ) && $write_func($new_img, $new_file_path, $image_quality);
+ $this->gd_set_image_object($file_path, $new_img);
+ return $success;
+ }
+
+ protected function imagick_get_image_object($file_path, $no_cache = false) {
+ if (empty($this->image_objects[$file_path]) || $no_cache) {
+ $this->imagick_destroy_image_object($file_path);
+ $image = new Imagick();
+ if (!empty($this->options['imagick_resource_limits'])) {
+ foreach ($this->options['imagick_resource_limits'] as $type => $limit) {
+ $image->setResourceLimit($type, $limit);
+ }
+ }
+ $image->readImage($file_path);
+ $this->image_objects[$file_path] = $image;
+ }
+ return $this->image_objects[$file_path];
+ }
+
+ protected function imagick_set_image_object($file_path, $image) {
+ $this->imagick_destroy_image_object($file_path);
+ $this->image_objects[$file_path] = $image;
+ }
+
+ protected function imagick_destroy_image_object($file_path) {
+ $image = @$this->image_objects[$file_path];
+ return $image && $image->destroy();
+ }
+
+ protected function imagick_orient_image($image) {
+ $orientation = $image->getImageOrientation();
+ $background = new ImagickPixel('none');
+ switch ($orientation) {
+ case imagick::ORIENTATION_TOPRIGHT: // 2
+ $image->flopImage(); // horizontal flop around y-axis
+ break;
+ case imagick::ORIENTATION_BOTTOMRIGHT: // 3
+ $image->rotateImage($background, 180);
+ break;
+ case imagick::ORIENTATION_BOTTOMLEFT: // 4
+ $image->flipImage(); // vertical flip around x-axis
+ break;
+ case imagick::ORIENTATION_LEFTTOP: // 5
+ $image->flopImage(); // horizontal flop around y-axis
+ $image->rotateImage($background, 270);
+ break;
+ case imagick::ORIENTATION_RIGHTTOP: // 6
+ $image->rotateImage($background, 90);
+ break;
+ case imagick::ORIENTATION_RIGHTBOTTOM: // 7
+ $image->flipImage(); // vertical flip around x-axis
+ $image->rotateImage($background, 270);
+ break;
+ case imagick::ORIENTATION_LEFTBOTTOM: // 8
+ $image->rotateImage($background, 270);
+ break;
+ default:
+ return false;
+ }
+ $image->setImageOrientation(imagick::ORIENTATION_TOPLEFT); // 1
+ return true;
+ }
+
+ protected function imagick_create_scaled_image($file_name, $version, $options) {
+ list($file_path, $new_file_path) =
+ $this->get_scaled_image_file_paths($file_name, $version);
+ $image = $this->imagick_get_image_object(
+ $file_path,
+ !empty($options['no_cache'])
+ );
+ if ($image->getImageFormat() === 'GIF') {
+ // Handle animated GIFs:
+ $images = $image->coalesceImages();
+ foreach ($images as $frame) {
+ $image = $frame;
+ $this->imagick_set_image_object($file_name, $image);
+ break;
+ }
+ }
+ $image_oriented = false;
+ if (!empty($options['auto_orient'])) {
+ $image_oriented = $this->imagick_orient_image($image);
+ }
+ $new_width = $max_width = $img_width = $image->getImageWidth();
+ $new_height = $max_height = $img_height = $image->getImageHeight();
+ if (!empty($options['max_width'])) {
+ $new_width = $max_width = $options['max_width'];
+ }
+ if (!empty($options['max_height'])) {
+ $new_height = $max_height = $options['max_height'];
+ }
+ if (!($image_oriented || $max_width < $img_width || $max_height < $img_height)) {
+ if ($file_path !== $new_file_path) {
+ return copy($file_path, $new_file_path);
+ }
+ return true;
+ }
+ $crop = !empty($options['crop']);
+ if ($crop) {
+ $x = 0;
+ $y = 0;
+ if (($img_width / $img_height) >= ($max_width / $max_height)) {
+ $new_width = 0; // Enables proportional scaling based on max_height
+ $x = ($img_width / ($img_height / $max_height) - $max_width) / 2;
+ } else {
+ $new_height = 0; // Enables proportional scaling based on max_width
+ $y = ($img_height / ($img_width / $max_width) - $max_height) / 2;
+ }
+ }
+ $success = $image->resizeImage(
+ $new_width,
+ $new_height,
+ isset($options['filter']) ? $options['filter'] : imagick::FILTER_LANCZOS,
+ isset($options['blur']) ? $options['blur'] : 1,
+ $new_width && $new_height // fit image into constraints if not to be cropped
+ );
+ if ($success && $crop) {
+ $success = $image->cropImage(
+ $max_width,
+ $max_height,
+ $x,
+ $y
+ );
+ if ($success) {
+ $success = $image->setImagePage($max_width, $max_height, 0, 0);
+ }
+ }
+ $type = strtolower(substr(strrchr($file_name, '.'), 1));
+ switch ($type) {
+ case 'jpg':
+ case 'jpeg':
+ if (!empty($options['jpeg_quality'])) {
+ $image->setImageCompression(Imagick::COMPRESSION_JPEG);
+ $image->setImageCompressionQuality($options['jpeg_quality']);
+ }
+ break;
+ }
+ if (!empty($options['strip'])) {
+ $image->stripImage();
+ }
+ return $success && $image->writeImage($new_file_path);
+ }
+
+ protected function imagemagick_create_scaled_image($file_name, $version, $options) {
+ list($file_path, $new_file_path) =
+ $this->get_scaled_image_file_paths($file_name, $version);
+ $resize = @$options['max_width']
+ .(empty($options['max_height']) ? '' : 'x'.$options['max_height']);
+ if (!$resize && empty($options['auto_orient'])) {
+ if ($file_path !== $new_file_path) {
+ return copy($file_path, $new_file_path);
+ }
+ return true;
+ }
+ $cmd = $this->options['convert_bin'];
+ if (!empty($this->options['convert_params'])) {
+ $cmd .= ' '.$this->options['convert_params'];
+ }
+ $cmd .= ' '.escapeshellarg($file_path);
+ if (!empty($options['auto_orient'])) {
+ $cmd .= ' -auto-orient';
+ }
+ if ($resize) {
+ // Handle animated GIFs:
+ $cmd .= ' -coalesce';
+ if (empty($options['crop'])) {
+ $cmd .= ' -resize '.escapeshellarg($resize.'>');
+ } else {
+ $cmd .= ' -resize '.escapeshellarg($resize.'^');
+ $cmd .= ' -gravity center';
+ $cmd .= ' -crop '.escapeshellarg($resize.'+0+0');
+ }
+ // Make sure the page dimensions are correct (fixes offsets of animated GIFs):
+ $cmd .= ' +repage';
+ }
+ if (!empty($options['convert_params'])) {
+ $cmd .= ' '.$options['convert_params'];
+ }
+ $cmd .= ' '.escapeshellarg($new_file_path);
+ exec($cmd, $output, $error);
+ if ($error) {
+ error_log(implode('\n', $output));
+ return false;
+ }
+ return true;
+ }
+
+ protected function get_image_size($file_path) {
+ if ($this->options['image_library']) {
+ if (extension_loaded('imagick')) {
+ $image = new Imagick();
+ try {
+ if (@$image->pingImage($file_path)) {
+ $dimensions = array($image->getImageWidth(), $image->getImageHeight());
+ $image->destroy();
+ return $dimensions;
+ }
+ return false;
+ } catch (Exception $e) {
+ error_log($e->getMessage());
+ }
+ }
+ if ($this->options['image_library'] === 2) {
+ $cmd = $this->options['identify_bin'];
+ $cmd .= ' -ping '.escapeshellarg($file_path);
+ exec($cmd, $output, $error);
+ if (!$error && !empty($output)) {
+ // image.jpg JPEG 1920x1080 1920x1080+0+0 8-bit sRGB 465KB 0.000u 0:00.000
+ $infos = preg_split('/\s+/', $output[0]);
+ $dimensions = preg_split('/x/', $infos[2]);
+ return $dimensions;
+ }
+ return false;
+ }
+ }
+ if (!function_exists('getimagesize')) {
+ error_log('Function not found: getimagesize');
+ return false;
+ }
+ return @getimagesize($file_path);
+ }
+
+ protected function create_scaled_image($file_name, $version, $options) {
+ if ($this->options['image_library'] === 2) {
+ return $this->imagemagick_create_scaled_image($file_name, $version, $options);
+ }
+ if ($this->options['image_library'] && extension_loaded('imagick')) {
+ return $this->imagick_create_scaled_image($file_name, $version, $options);
+ }
+ return $this->gd_create_scaled_image($file_name, $version, $options);
+ }
+
+ protected function destroy_image_object($file_path) {
+ if ($this->options['image_library'] && extension_loaded('imagick')) {
+ return $this->imagick_destroy_image_object($file_path);
+ }
+ }
+
+ protected function is_valid_image_file($file_path) {
+ if (!preg_match($this->options['image_file_types'], $file_path)) {
+ return false;
+ }
+ if (function_exists('exif_imagetype')) {
+ return @exif_imagetype($file_path);
+ }
+ $image_info = $this->get_image_size($file_path);
+ return $image_info && $image_info[0] && $image_info[1];
+ }
+
+ protected function handle_image_file($file_path, $file) {
+ $failed_versions = array();
+ foreach($this->options['image_versions'] as $version => $options) {
+ if ($this->create_scaled_image($file->name, $version, $options)) {
+ if (!empty($version)) {
+ $file->{$version.'Url'} = $this->get_download_url(
+ $file->name,
+ $version
+ );
+ } else {
+ $file->size = $this->get_file_size($file_path, true);
+ }
+ } else {
+ $failed_versions[] = $version ? $version : 'original';
+ }
+ }
+ if (count($failed_versions)) {
+ $file->error = $this->get_error_message('image_resize')
+ .' ('.implode($failed_versions,', ').')';
+ }
+ // Free memory:
+ $this->destroy_image_object($file_path);
+ }
+
+ protected function handle_file_upload($uploaded_file, $name, $size, $type, $error,
+ $index = null, $content_range = null) {
+ $file = new stdClass();
+ $file->name = $this->get_file_name($uploaded_file, $name, $size, $type, $error,
+ $index, $content_range);
+ $file->size = $this->fix_integer_overflow(intval($size));
+ $file->type = $type;
+ if ($this->validate($uploaded_file, $file, $error, $index)) {
+ $this->handle_form_data($file, $index);
+ $upload_dir = $this->get_upload_path();
+ if (!is_dir($upload_dir)) {
+ mkdir($upload_dir, $this->options['mkdir_mode'], true);
+ }
+ $file_path = $this->get_upload_path($file->name);
+ $append_file = $content_range && is_file($file_path) &&
+ $file->size > $this->get_file_size($file_path);
+ 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 = $this->get_file_size($file_path, $append_file);
+ if ($file_size === $file->size) {
+ $file->url = $this->get_download_url($file->name);
+ if ($this->is_valid_image_file($file_path)) {
+ $this->handle_image_file($file_path, $file);
+ }
+ } else {
+ $file->size = $file_size;
+ if (!$content_range && $this->options['discard_aborted_uploads']) {
+ unlink($file_path);
+ $file->error = $this->get_error_message('abort');
+ }
+ }
+ $this->set_additional_file_properties($file);
+ }
+ return $file;
+ }
+
+ protected function readfile($file_path) {
+ $file_size = $this->get_file_size($file_path);
+ $chunk_size = $this->options['readfile_chunk_size'];
+ if ($chunk_size && $file_size > $chunk_size) {
+ $handle = fopen($file_path, 'rb');
+ while (!feof($handle)) {
+ echo fread($handle, $chunk_size);
+ ob_flush();
+ flush();
+ }
+ fclose($handle);
+ return $file_size;
+ }
+ return readfile($file_path);
+ }
+
+ protected function body($str) {
+ echo $str;
+ }
+
+ protected function header($str) {
+ header($str);
+ }
+
+ protected function get_server_var($id) {
+ return isset($_SERVER[$id]) ? $_SERVER[$id] : '';
+ }
+
+ protected function generate_response($content, $print_response = true) {
+ if ($print_response) {
+ $json = json_encode($content);
+ $redirect = isset($_REQUEST['redirect']) ?
+ stripslashes($_REQUEST['redirect']) : null;
+ if ($redirect) {
+ $this->header('Location: '.sprintf($redirect, rawurlencode($json)));
+ return;
+ }
+ $this->head();
+ if ($this->get_server_var('HTTP_CONTENT_RANGE')) {
+ $files = isset($content[$this->options['param_name']]) ?
+ $content[$this->options['param_name']] : null;
+ if ($files && is_array($files) && is_object($files[0]) && $files[0]->size) {
+ $this->header('Range: 0-'.(
+ $this->fix_integer_overflow(intval($files[0]->size)) - 1
+ ));
+ }
+ }
+ $this->body($json);
+ }
+ return $content;
+ }
+
+ protected function get_version_param() {
+ return isset($_GET['version']) ? basename(stripslashes($_GET['version'])) : null;
+ }
+
+ protected function get_singular_param_name() {
+ return substr($this->options['param_name'], 0, -1);
+ }
+
+ protected function get_file_name_param() {
+ $name = $this->get_singular_param_name();
+ return isset($_GET[$name]) ? basename(stripslashes($_GET[$name])) : null;
+ }
+
+ protected function get_file_names_params() {
+ $params = isset($_GET[$this->options['param_name']]) ?
+ $_GET[$this->options['param_name']] : array();
+ foreach ($params as $key => $value) {
+ $params[$key] = basename(stripslashes($value));
+ }
+ return $params;
+ }
+
+ protected function get_file_type($file_path) {
+ switch (strtolower(pathinfo($file_path, PATHINFO_EXTENSION))) {
+ case 'jpeg':
+ case 'jpg':
+ return 'image/jpeg';
+ case 'png':
+ return 'image/png';
+ case 'gif':
+ return 'image/gif';
+ default:
+ return '';
+ }
+ }
+
+ protected function download() {
+ switch ($this->options['download_via_php']) {
+ case 1:
+ $redirect_header = null;
+ break;
+ case 2:
+ $redirect_header = 'X-Sendfile';
+ break;
+ case 3:
+ $redirect_header = 'X-Accel-Redirect';
+ break;
+ default:
+ return $this->header('HTTP/1.1 403 Forbidden');
+ }
+ $file_name = $this->get_file_name_param();
+ if (!$this->is_valid_file_object($file_name)) {
+ return $this->header('HTTP/1.1 404 Not Found');
+ }
+ if ($redirect_header) {
+ return $this->header(
+ $redirect_header.': '.$this->get_download_url(
+ $file_name,
+ $this->get_version_param(),
+ true
+ )
+ );
+ }
+ $file_path = $this->get_upload_path($file_name, $this->get_version_param());
+ // Prevent browsers from MIME-sniffing the content-type:
+ $this->header('X-Content-Type-Options: nosniff');
+ if (!preg_match($this->options['inline_file_types'], $file_name)) {
+ $this->header('Content-Type: application/octet-stream');
+ $this->header('Content-Disposition: attachment; filename="'.$file_name.'"');
+ } else {
+ $this->header('Content-Type: '.$this->get_file_type($file_path));
+ $this->header('Content-Disposition: inline; filename="'.$file_name.'"');
+ }
+ $this->header('Content-Length: '.$this->get_file_size($file_path));
+ $this->header('Last-Modified: '.gmdate('D, d M Y H:i:s T', filemtime($file_path)));
+ $this->readfile($file_path);
+ }
+
+ protected function send_content_type_header() {
+ $this->header('Vary: Accept');
+ if (strpos($this->get_server_var('HTTP_ACCEPT'), 'application/json') !== false) {
+ $this->header('Content-type: application/json');
+ } else {
+ $this->header('Content-type: text/plain');
+ }
+ }
+
+ protected function send_access_control_headers() {
+ $this->header('Access-Control-Allow-Origin: '.$this->options['access_control_allow_origin']);
+ $this->header('Access-Control-Allow-Credentials: '
+ .($this->options['access_control_allow_credentials'] ? 'true' : 'false'));
+ $this->header('Access-Control-Allow-Methods: '
+ .implode(', ', $this->options['access_control_allow_methods']));
+ $this->header('Access-Control-Allow-Headers: '
+ .implode(', ', $this->options['access_control_allow_headers']));
+ }
+
+ public function head() {
+ $this->header('Pragma: no-cache');
+ $this->header('Cache-Control: no-store, no-cache, must-revalidate');
+ $this->header('Content-Disposition: inline; filename="files.json"');
+ // Prevent Internet Explorer from MIME-sniffing the content-type:
+ $this->header('X-Content-Type-Options: nosniff');
+ if ($this->options['access_control_allow_origin']) {
+ $this->send_access_control_headers();
+ }
+ $this->send_content_type_header();
+ }
+
+ public function get($print_response = true) {
+ if ($print_response && isset($_GET['download'])) {
+ return $this->download();
+ }
+ $file_name = $this->get_file_name_param();
+ if ($file_name) {
+ $response = array(
+ $this->get_singular_param_name() => $this->get_file_object($file_name)
+ );
+ } else {
+ $response = array(
+ $this->options['param_name'] => $this->get_file_objects()
+ );
+ }
+ return $this->generate_response($response, $print_response);
+ }
+
+ public function post($print_response = true) {
+ if (isset($_REQUEST['_method']) && $_REQUEST['_method'] === 'DELETE') {
+ return $this->delete($print_response);
+ }
+ $upload = isset($_FILES[$this->options['param_name']]) ?
+ $_FILES[$this->options['param_name']] : null;
+ // Parse the Content-Disposition header, if available:
+ $file_name = $this->get_server_var('HTTP_CONTENT_DISPOSITION') ?
+ rawurldecode(preg_replace(
+ '/(^[^"]+")|("$)/',
+ '',
+ $this->get_server_var('HTTP_CONTENT_DISPOSITION')
+ )) : null;
+ // Parse the Content-Range header, which has the following form:
+ // Content-Range: bytes 0-524287/2000000
+ $content_range = $this->get_server_var('HTTP_CONTENT_RANGE') ?
+ preg_split('/[^0-9]+/', $this->get_server_var('HTTP_CONTENT_RANGE')) : null;
+ $size = $content_range ? $content_range[3] : null;
+ $files = array();
+ if ($upload && is_array($upload['tmp_name'])) {
+ // param_name is an array identifier like "files[]",
+ // $_FILES is a multi-dimensional array:
+ foreach ($upload['tmp_name'] as $index => $value) {
+ $files[] = $this->handle_file_upload(
+ $upload['tmp_name'][$index],
+ $file_name ? $file_name : $upload['name'][$index],
+ $size ? $size : $upload['size'][$index],
+ $upload['type'][$index],
+ $upload['error'][$index],
+ $index,
+ $content_range
+ );
+ }
+ } else {
+ // param_name is a single object identifier like "file",
+ // $_FILES is a one-dimensional array:
+ $files[] = $this->handle_file_upload(
+ isset($upload['tmp_name']) ? $upload['tmp_name'] : null,
+ $file_name ? $file_name : (isset($upload['name']) ?
+ $upload['name'] : null),
+ $size ? $size : (isset($upload['size']) ?
+ $upload['size'] : $this->get_server_var('CONTENT_LENGTH')),
+ isset($upload['type']) ?
+ $upload['type'] : $this->get_server_var('CONTENT_TYPE'),
+ isset($upload['error']) ? $upload['error'] : null,
+ null,
+ $content_range
+ );
+ }
+ return $this->generate_response(
+ array($this->options['param_name'] => $files),
+ $print_response
+ );
+ }
+
+ public function delete($print_response = true) {
+ $file_names = $this->get_file_names_params();
+ if (empty($file_names)) {
+ $file_names = array($this->get_file_name_param());
+ }
+ $response = array();
+ foreach($file_names as $file_name) {
+ $file_path = $this->get_upload_path($file_name);
+ $success = is_file($file_path) && $file_name[0] !== '.' && unlink($file_path);
+ if ($success) {
+ foreach($this->options['image_versions'] as $version => $options) {
+ if (!empty($version)) {
+ $file = $this->get_upload_path($file_name, $version);
+ if (is_file($file)) {
+ unlink($file);
+ }
+ }
+ }
+ }
+ $response[$file_name] = $success;
+ }
+ return $this->generate_response($response, $print_response);
+ }
+
+}