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<?php class erLhcoreClassFileUploadAdmin extends erLhcoreClassFileUpload { public $uploadedFile = false; // https://stackoverflow.com/questions/3614925/remove-exif-data-from-jpg-using-php public static function removeExif($in, $out) { $buffer_len = 4096; $fd_in = fopen($in, 'rb'); $fd_out = fopen($out, 'wb'); while (($buffer = fread($fd_in, $buffer_len))) { // \xFF\xE1\xHH\xLLExif\x00\x00 - Exif // \xFF\xE1\xHH\xLLhttp:// - XMP // \xFF\xE2\xHH\xLLICC_PROFILE - ICC // \xFF\xED\xHH\xLLPhotoshop - PH while (preg_match('/\xFF[\xE1\xE2\xED\xEE](.)(.)(exif\|photoshop\|http:\|icc_profile\|adobe)/si', $buffer, $match, PREG_OFFSET_CAPTURE)) { $len = ord($match[1][0]) * 256 + ord($match[2][0]); fwrite($fd_out, substr($buffer, 0, $match[0][1])); $filepos = $match[0][1] + 2 + $len - strlen($buffer); fseek($fd_in, $filepos, SEEK_CUR); $buffer = fread($fd_in, $buffer_len); } fwrite($fd_out, $buffer, strlen($buffer)); } fclose($fd_out); fclose($fd_in); } protected function handle_file_upload($uploaded_file, $name, $size, $type, $error, $index = null, $content_range = null) { $matches = array(); if (strpos($name, '.') === false && preg_match('/^image\/(gif\|jpe?g\|png)/', $type, $matches)) { $name = $uploadFileName = 'clipboard.' . $matches[1]; } else { $uploadFileName = $name; } if (!preg_match($this->options['accept_file_types_lhc'], $uploadFileName)) { throw new Exception($this->get_error_message('accept_file_types')); return false; } $file = parent::handle_file_upload_parent( $uploaded_file, $name, $size, $type, $error, $index, $content_range ); if (empty($file->error)) { $fileUpload = new erLhcoreClassModelChatFile(); $fileUpload->size = $file->size; $fileUpload->type = $file->type; $fileUpload->name = $file->name; $fileUpload->date = time(); $fileUpload->user_id = isset($this->options['user_id']) ? $this->options['user_id'] : 0; $fileUpload->upload_name = (isset($this->options['file_name_manual']) && $this->options['file_name_manual'] != '') ? $this->options['file_name_manual'] . ' - ' . $name : $name; $fileUpload->file_path = $this->options['upload_dir']; $fileUpload->chat_id = (isset($this->options['chat_id']) && $this->options['chat_id'] > 0) ? (int)$this->options['chat_id'] : 0; $fileUpload->persistent = (isset($this->options['persistent']) && $this->options['persistent'] == true) ? 1 : 0; if (isset($this->options['file_name_replace']) && $this->options['file_name_replace'] != '') { $fileUpload->upload_name = $this->options['file_name_replace']; } $matches = array(); if (strpos($name, '.') === false && preg_match('/^image\/(gif\|jpe?g\|png)/', $fileUpload->type, $matches)) { $fileUpload->extension = strtolower($matches[1]); } else { $partsFile = explode('.', $name); $fileUpload->extension = strtolower(end($partsFile)); } if ($fileUpload->extension == 'svg') { self::cleanSVG($fileUpload->file_path_server); $file->size = $fileUpload->size = filesize($fileUpload->file_path_server); } if (isset($this->options['remove_meta']) && $this->options['remove_meta'] == true && in_array($fileUpload->extension, array('jfif','jpg', 'jpeg', 'png', 'gif'))) { self::removeExif($fileUpload->file_path_server, $fileUpload->file_path_server . '_exif'); unlink($fileUpload->file_path_server); rename($fileUpload->file_path_server . '_exif', $fileUpload->file_path_server); $file->size = $fileUpload->size = filesize($fileUpload->file_path_server); } $fileUpload->saveThis(); $this->uploadedFile = $fileUpload; } else { throw new Exception($file->error); } return $file; } public static function cleanSVG($path) { $sanitizer = new \enshrined\svgSanitize\Sanitizer(); $dirtySVG = file_get_contents($path); $cleanSVG = $sanitizer->sanitize($dirtySVG); file_put_contents($path.'_svg', $cleanSVG); unlink($path); rename($path.'_svg', $path); } } ?>

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