C:/xampp/htdocs/moodle/lib/zend/Zend/Validate/File/ExcludeMimeType.php

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<?php
require_once 'Zend/Validate/File/MimeType.php';

class Zend_Validate_File_ExcludeMimeType extends Zend_Validate_File_MimeType
{
    const FALSE_TYPE   = 'fileExcludeMimeTypeFalse';
    const NOT_DETECTED = 'fileExcludeMimeTypeNotDetected';
    const NOT_READABLE = 'fileExcludeMimeTypeNotReadable';

    public function isValid($value, $file = null)
    {
        if ($file === null) {
            $file = array(
                'type' => null,
                'name' => $value
            );
        }

        // Is file readable ?
        require_once 'Zend/Loader.php';
        if (!Zend_Loader::isReadable($value)) {
            return $this->_throw($file, self::NOT_READABLE);
        }

        $mimefile = $this->getMagicFile();
        if (class_exists('finfo', false)) {
            $const = defined('FILEINFO_MIME_TYPE') ? FILEINFO_MIME_TYPE : FILEINFO_MIME;
            if (!empty($mimefile)) {
                $mime = new finfo($const, $mimefile);
            } else {
                $mime = new finfo($const);
            }

            if (!empty($mime)) {
                $this->_type = $mime->file($value);
            }
            unset($mime);
        }

        if (empty($this->_type)) {
            if (function_exists('mime_content_type') && ini_get('mime_magic.magicfile')) {
                $this->_type = mime_content_type($value);
            } elseif ($this->_headerCheck) {
                $this->_type = $file['type'];
            }
        }

        if (empty($this->_type)) {
            return $this->_throw($file, self::NOT_DETECTED);
        }

        $mimetype = $this->getMimeType(true);
        if (in_array($this->_type, $mimetype)) {
            return $this->_throw($file, self::FALSE_TYPE);
        }

        $types = explode('/', $this->_type);
        $types = array_merge($types, explode('-', $this->_type));
        foreach($mimetype as $mime) {
            if (in_array($mime, $types)) {
                return $this->_throw($file, self::FALSE_TYPE);
            }
        }

        return true;
    }
}