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authorMike Macgirvin <mike@macgirvin.com>2018-10-31 15:56:08 +1100
committerMike Macgirvin <mike@macgirvin.com>2018-10-31 15:56:08 +1100
commit7e1f431eca7a8aa68fc0badfaa88e88de3ba094c (patch)
tree16beba352cd4ace4aa6eb13c7f9c1c82c92013b4 /library/blueimp_upload/server/php/UploadHandler.php
parent70c55da1df69d90dcbeb5a78c994b23a8456bfc9 (diff)
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yet another blueimp vulnerability. Move to composer.
Diffstat (limited to 'library/blueimp_upload/server/php/UploadHandler.php')
-rwxr-xr-xlibrary/blueimp_upload/server/php/UploadHandler.php1411
1 files changed, 0 insertions, 1411 deletions
diff --git a/library/blueimp_upload/server/php/UploadHandler.php b/library/blueimp_upload/server/php/UploadHandler.php
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+++ /dev/null
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-<?php
-/*
- * jQuery File Upload Plugin PHP Class
- * https://github.com/blueimp/jQuery-File-Upload
- *
- * Copyright 2010, Sebastian Tschan
- * https://blueimp.net
- *
- * Licensed under the MIT license:
- * https://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 $image_objects = array();
-
- public function __construct($options = null, $initialize = true, $error_messages = null) {
- $this->response = array();
- $this->options = array(
- 'script_url' => $this->get_full_url().'/'.$this->basename($this->get_server_var('SCRIPT_NAME')),
- 'upload_dir' => dirname($this->get_server_var('SCRIPT_FILENAME')).'/files/',
- 'upload_url' => $this->get_full_url().'/files/',
- 'input_stream' => 'php://input',
- 'user_dirs' => false,
- 'mkdir_mode' => 0755,
- 'param_name' => 'files',
- // Set the following option to 'POST', if your server does not support
- // DELETE requests. This is a parameter sent to the client:
- 'delete_type' => 'DELETE',
- 'access_control_allow_origin' => '*',
- 'access_control_allow_credentials' => false,
- 'access_control_allow_methods' => array(
- 'OPTIONS',
- 'HEAD',
- 'GET',
- 'POST',
- 'PUT',
- 'PATCH',
- 'DELETE'
- ),
- 'access_control_allow_headers' => array(
- 'Content-Type',
- 'Content-Range',
- 'Content-Disposition'
- ),
- // By default, allow redirects to the referer protocol+host:
- 'redirect_allow_target' => '/^'.preg_quote(
- parse_url($this->get_server_var('HTTP_REFERER'), PHP_URL_SCHEME)
- .'://'
- .parse_url($this->get_server_var('HTTP_REFERER'), PHP_URL_HOST)
- .'/', // Trailing slash to not match subdomains by mistake
- '/' // preg_quote delimiter param
- ).'/',
- // Enable to provide file downloads via GET requests to the PHP script:
- // 1. Set to 1 to download files via readfile method through PHP
- // 2. Set to 2 to send a X-Sendfile header for lighttpd/Apache
- // 3. Set to 3 to send a X-Accel-Redirect header for nginx
- // If set to 2 or 3, adjust the upload_url option to the base path of
- // the redirect parameter, e.g. '/files/'.
- 'download_via_php' => false,
- // Read files in chunks to avoid memory limits when download_via_php
- // is enabled, set to 0 to disable chunked reading of files:
- 'readfile_chunk_size' => 10 * 1024 * 1024, // 10 MiB
- // Defines which files can be displayed inline when downloaded:
- 'inline_file_types' => '/\.(gif|jpe?g|png)$/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',
- // Use exif_imagetype on all files to correct file extensions:
- 'correct_image_extensions' => false,
- // 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.
- // Keep in mind: these image manipulations are inherited by all other image versions from this point onwards.
- // Also note that the property 'no_cache' is not inherited, since it's not a manipulation.
- '' => array(
- // Automatically rotate images based on EXIF meta data:
- 'auto_orient' => true
- ),
- // You can add arrays to generate different versions.
- // The name of the key is the name of the version (example: 'medium').
- // the array contains the options to apply.
- /*
- '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' => $this->get_full_url().'/thumb/',
- // Uncomment the following to force the max
- // dimensions and e.g. create square thumbnails:
- // 'auto_orient' => true,
- // 'crop' => true,
- // 'jpeg_quality' => 70,
- // 'no_cache' => true, (there's a caching option, but this remembers thumbnail sizes from a previous action!)
- // 'strip' => true, (this strips EXIF tags, such as geolocation)
- 'max_width' => 80, // either specify width, or set to 0. Then width is automatically adjusted - keeping aspect ratio to a specified max_height.
- 'max_height' => 80 // either specify height, or set to 0. Then height is automatically adjusted - keeping aspect ratio to a specified max_width.
- )
- ),
- 'print_response' => true
- );
- if ($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':
- $this->get($this->options['print_response']);
- break;
- case 'PATCH':
- case 'PUT':
- case 'POST':
- $this->post($this->options['print_response']);
- break;
- case 'DELETE':
- $this->delete($this->options['print_response']);
- break;
- default:
- $this->header('HTTP/1.1 405 Method Not Allowed');
- }
- }
-
- protected function get_full_url() {
- $https = !empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'on') === 0 ||
- !empty($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
- strcasecmp($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') === 0;
- return
- ($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 isset($this->error_messages[$error]) ?
- $this->error_messages[$error] : $error;
- }
-
- public function get_config_bytes($val) {
- $val = trim($val);
- $last = strtolower($val[strlen($val)-1]);
- $val = (int)$val;
- 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 = $this->fix_integer_overflow(
- (int)$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() >= $this->options['max_number_of_files']) &&
- // Ignore additional chunks of existing files:
- !is_file($this->get_upload_path($file->name))) {
- $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 || $min_height)
- && preg_match($this->options['image_file_types'], $file->name)) {
- list($img_width, $img_height) = $this->get_image_size($uploaded_file);
-
- // If we are auto rotating the image by default, do the checks on
- // the correct orientation
- if (
- @$this->options['image_versions']['']['auto_orient'] &&
- function_exists('exif_read_data') &&
- ($exif = @exif_read_data($uploaded_file)) &&
- (((int) @$exif['Orientation']) >= 5)
- ) {
- $tmp = $img_width;
- $img_width = $img_height;
- $img_height = $tmp;
- unset($tmp);
- }
-
- }
- 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]) ? ((int)$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 = $this->fix_integer_overflow((int)$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 $name;
- }
-
- protected function fix_file_extension($file_path, $name, $size, $type, $error,
- $index, $content_range) {
- // Add missing file extension for known image types:
- if (strpos($name, '.') === false &&
- preg_match('/^image\/(gif|jpe?g|png)/', $type, $matches)) {
- $name .= '.'.$matches[1];
- }
- if ($this->options['correct_image_extensions'] &&
- function_exists('exif_imagetype')) {
- switch (@exif_imagetype($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 $name;
- }
-
- protected function trim_file_name($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:
- $name = trim($this->basename(stripslashes($name)), ".\x00..\x20");
- // Use a timestamp for empty filenames:
- if (!$name) {
- $name = str_replace('.', '-', microtime(true));
- }
- return $name;
- }
-
- protected function get_file_name($file_path, $name, $size, $type, $error,
- $index, $content_range) {
- $name = $this->trim_file_name($file_path, $name, $size, $type, $error,
- $index, $content_range);
- return $this->get_unique_filename(
- $file_path,
- $this->fix_file_extension($file_path, $name, $size, $type, $error,
- $index, $content_range),
- $size,
- $type,
- $error,
- $index,
- $content_range
- );
- }
-
- protected function get_scaled_image_file_paths($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) {
- $image = (isset($this->image_objects[$file_path])) ? $this->image_objects[$file_path] : null ;
- 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;
- }
- $orientation = (int)@$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) {
- $image = (isset($this->image_objects[$file_path])) ? $this->image_objects[$file_path] : null ;
- 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['crop']) || !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);
- }
-
- $image_resize = false;
- $new_width = $max_width = $img_width = $image->getImageWidth();
- $new_height = $max_height = $img_height = $image->getImageHeight();
-
- // use isset(). User might be setting max_width = 0 (auto in regular resizing). Value 0 would be considered empty when you use empty()
- if (isset($options['max_width'])) {
- $image_resize = true;
- $new_width = $max_width = $options['max_width'];
- }
- if (isset($options['max_height'])) {
- $image_resize = true;
- $new_height = $max_height = $options['max_height'];
- }
-
- $image_strip = (isset($options['strip']) ? $options['strip'] : false);
-
- if ( !$image_oriented && ($max_width >= $img_width) && ($max_height >= $img_height) && !$image_strip && empty($options["jpeg_quality"]) ) {
- if ($file_path !== $new_file_path) {
- return copy($file_path, $new_file_path);
- }
- return true;
- }
- $crop = (isset($options['crop']) ? $options['crop'] : false);
-
- if ($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 ( $image_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
- $infos = preg_split('/\s+/', substr($output[0], strlen($file_path)));
- $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 = $this->fix_integer_overflow((int)$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(
- $file_path,
- fopen($this->options['input_stream'], '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($str);
- }
-
- protected function get_upload_data($id) {
- return @$_FILES[$id];
- }
-
- protected function get_post_param($id) {
- return @$_POST[$id];
- }
-
- protected function get_query_param($id) {
- return @$_GET[$id];
- }
-
- protected function get_server_var($id) {
- return @$_SERVER[$id];
- }
-
- protected function handle_form_data($file, $index) {
- // Handle form data, e.g. $_POST['description'][$index]
- }
-
- protected function get_version_param() {
- return $this->basename(stripslashes($this->get_query_param('version')));
- }
-
- 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 $this->basename(stripslashes($this->get_query_param($name)));
- }
-
- protected function get_file_names_params() {
- $params = $this->get_query_param($this->options['param_name']);
- if (!$params) {
- return null;
- }
- foreach ($params as $key => $value) {
- $params[$key] = $this->basename(stripslashes($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(', ', $this->options['access_control_allow_headers']));
- }
-
- public function generate_response($content, $print_response = true) {
- $this->response = $content;
- if ($print_response) {
- $json = json_encode($content);
- $redirect = stripslashes($this->get_post_param('redirect'));
- if ($redirect && preg_match($this->options['redirect_allow_target'], $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-'.(
- $this->fix_integer_overflow((int)$files[0]->size) - 1
- ));
- }
- }
- $this->body($json);
- }
- return $content;
- }
-
- public function get_response () {
- return $this->response;
- }
-
- 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 && $this->get_query_param('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 ($this->get_query_param('_method') === 'DELETE') {
- return $this->delete($print_response);
- }
- $upload = $this->get_upload_data($this->options['param_name']);
- // Parse the Content-Disposition header, if available:
- $content_disposition_header = $this->get_server_var('HTTP_CONTENT_DISPOSITION');
- $file_name = $content_disposition_header ?
- rawurldecode(preg_replace(
- '/(^[^"]+")|("$)/',
- '',
- $content_disposition_header
- )) : null;
- // Parse the Content-Range header, which has the following form:
- // Content-Range: bytes 0-524287/2000000
- $content_range_header = $this->get_server_var('HTTP_CONTENT_RANGE');
- $content_range = $content_range_header ?
- preg_split('/[^0-9]+/', $content_range_header) : null;
- $size = $content_range ? $content_range[3] : null;
- $files = array();
- if ($upload) {
- if (is_array($upload['tmp_name'])) {
- // param_name is an array identifier like "files[]",
- // $upload is a multi-dimensional array:
- foreach ($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",
- // $upload 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
- );
- }
- }
- $response = array($this->options['param_name'] => $files);
- return $this->generate_response($response, $print_response);
- }
-
- public function delete($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, $print_response);
- }
-
- protected function basename($filepath, $suffix = null) {
- $splited = preg_split('/\//', rtrim ($filepath, '/ '));
- return substr(basename('X'.$splited[count($splited)-1], $suffix), 1);
- }
-}