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  • /**
     * Mimes
     *
     * This file contains an array of mime types.  It is used by the
     * Upload class to help identify allowed file types.
     *
     * When more than one variation for an extension exist (like jpg, jpeg, etc)
     * the most common one should be first in the array to aid the guess*
     * methods. The same applies when more than one mime-type exists for a
     * single extension.
     *
     * When working with mime types, please make sure you have the ´fileinfo´
     * extension enabled to reliably detect the media types.
     */
    
    
        /**
         * Map of extensions to mime types.
         *
         * @var array
         */
        public static $mimes = [
            'hqx' => [
                'application/mac-binhex40',
                'application/mac-binhex',
                'application/x-binhex40',
                'application/x-mac-binhex40',
            ],
            'cpt' => 'application/mac-compactpro',
            'csv' => [
                'text/csv',
                'text/x-comma-separated-values',
                'text/comma-separated-values',
                'application/vnd.ms-excel',
                'application/x-csv',
                'text/x-csv',
                'application/csv',
                'application/excel',
                'application/vnd.msexcel',
                'text/plain',
            ],
            'bin' => [
                'application/macbinary',
                'application/mac-binary',
                'application/octet-stream',
                'application/x-binary',
                'application/x-macbinary',
            ],
            'dms' => 'application/octet-stream',
            'lha' => 'application/octet-stream',
            'lzh' => 'application/octet-stream',
            'exe' => ['application/octet-stream', 'application/x-msdownload'],
            'class' => 'application/octet-stream',
            'psd' => ['application/x-photoshop', 'image/vnd.adobe.photoshop'],
            'so' => 'application/octet-stream',
            'sea' => 'application/octet-stream',
            'dll' => 'application/octet-stream',
            'oda' => 'application/oda',
            'pdf' => [
                'application/pdf',
                'application/force-download',
                'application/x-download',
            ],
            'ai' => ['application/pdf', 'application/postscript'],
            'eps' => 'application/postscript',
            'ps' => 'application/postscript',
            'smi' => 'application/smil',
            'smil' => 'application/smil',
            'mif' => 'application/vnd.mif',
            'xls' => [
                'application/vnd.ms-excel',
                'application/msexcel',
                'application/x-msexcel',
                'application/x-ms-excel',
                'application/x-excel',
                'application/x-dos_ms_excel',
                'application/xls',
                'application/x-xls',
                'application/excel',
                'application/download',
                'application/vnd.ms-office',
                'application/msword',
            ],
            'ppt' => [
                'application/vnd.ms-powerpoint',
                'application/powerpoint',
                'application/vnd.ms-office',
                'application/msword',
            ],
            'pptx' => [
                'application/vnd.openxmlformats-officedocument.presentationml.presentation',
                'application/x-zip',
                'application/zip',
            ],
            'wbxml' => 'application/wbxml',
            'wmlc' => 'application/wmlc',
            'dcr' => 'application/x-director',
            'dir' => 'application/x-director',
            'dxr' => 'application/x-director',
            'dvi' => 'application/x-dvi',
            'gtar' => 'application/x-gtar',
            'gz' => 'application/x-gzip',
            'gzip' => 'application/x-gzip',
            'php' => [
                'application/x-php',
                'application/x-httpd-php',
                'application/php',
                'text/php',
                'text/x-php',
                'application/x-httpd-php-source',
            ],
            'php4' => 'application/x-httpd-php',
            'php3' => 'application/x-httpd-php',
            'phtml' => 'application/x-httpd-php',
            'phps' => 'application/x-httpd-php-source',
            'js' => ['application/x-javascript', 'text/plain'],
            'swf' => 'application/x-shockwave-flash',
            'sit' => 'application/x-stuffit',
            'tar' => 'application/x-tar',
            'tgz' => ['application/x-tar', 'application/x-gzip-compressed'],
            'z' => 'application/x-compress',
            'xhtml' => 'application/xhtml+xml',
            'xht' => 'application/xhtml+xml',
            'zip' => [
                'application/x-zip',
                'application/zip',
                'application/x-zip-compressed',
                'application/s-compressed',
                'multipart/x-zip',
            ],
            'rar' => [
    
                'application/x-rar',
                'application/rar',
                'application/x-rar-compressed',
            ],
            'mid' => 'audio/midi',
            'midi' => 'audio/midi',
            'mpga' => 'audio/mpeg',
            'mp2' => 'audio/mpeg',
            'mp3' => ['audio/mpeg', 'audio/mpg', 'audio/mpeg3', 'audio/mp3'],
            'aif' => ['audio/x-aiff', 'audio/aiff'],
            'aiff' => ['audio/x-aiff', 'audio/aiff'],
            'aifc' => 'audio/x-aiff',
            'ram' => 'audio/x-pn-realaudio',
            'rm' => 'audio/x-pn-realaudio',
            'rpm' => 'audio/x-pn-realaudio-plugin',
            'ra' => 'audio/x-realaudio',
            'rv' => 'video/vnd.rn-realvideo',
            'wav' => ['audio/x-wav', 'audio/wave', 'audio/wav'],
            'bmp' => [
                'image/bmp',
                'image/x-bmp',
                'image/x-bitmap',
                'image/x-xbitmap',
                'image/x-win-bitmap',
                'image/x-windows-bmp',
                'image/ms-bmp',
                'image/x-ms-bmp',
                'application/bmp',
                'application/x-bmp',
                'application/x-win-bitmap',
            ],
            'gif' => 'image/gif',
            'jpg' => ['image/jpeg', 'image/pjpeg'],
            'jpeg' => ['image/jpeg', 'image/pjpeg'],
            'jpe' => ['image/jpeg', 'image/pjpeg'],
            'jp2' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'j2k' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'jpf' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'jpg2' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'jpx' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'jpm' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'mj2' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'mjp2' => ['image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'],
            'png' => ['image/png', 'image/x-png'],
            'tif' => 'image/tiff',
            'tiff' => 'image/tiff',
            'css' => ['text/css', 'text/plain'],
            'html' => ['text/html', 'text/plain'],
            'htm' => ['text/html', 'text/plain'],
            'shtml' => ['text/html', 'text/plain'],
            'txt' => 'text/plain',
            'text' => 'text/plain',
            'log' => ['text/plain', 'text/x-log'],
            'rtx' => 'text/richtext',
            'rtf' => 'text/rtf',
            'xml' => ['application/xml', 'text/xml', 'text/plain'],
            'xsl' => ['application/xml', 'text/xsl', 'text/xml'],
            'mpeg' => 'video/mpeg',
            'mpg' => 'video/mpeg',
            'mpe' => 'video/mpeg',
            'qt' => 'video/quicktime',
            'mov' => 'video/quicktime',
            'avi' => [
                'video/x-msvideo',
                'video/msvideo',
                'video/avi',
                'application/x-troff-msvideo',
            ],
            'movie' => 'video/x-sgi-movie',
            'doc' => ['application/msword', 'application/vnd.ms-office'],
            'docx' => [
                'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
                'application/zip',
                'application/msword',
                'application/x-zip',
            ],
            'dot' => ['application/msword', 'application/vnd.ms-office'],
            'dotx' => [
                'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
                'application/zip',
                'application/msword',
            ],
            'xlsx' => [
                'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                'application/zip',
                'application/vnd.ms-excel',
                'application/msword',
                'application/x-zip',
            ],
            'word' => ['application/msword', 'application/octet-stream'],
            'xl' => 'application/excel',
            'eml' => 'message/rfc822',
            'json' => ['application/json', 'text/json'],
            'pem' => [
                'application/x-x509-user-cert',
                'application/x-pem-file',
                'application/octet-stream',
            ],
            'p10' => ['application/x-pkcs10', 'application/pkcs10'],
            'p12' => 'application/x-pkcs12',
            'p7a' => 'application/x-pkcs7-signature',
            'p7c' => ['application/pkcs7-mime', 'application/x-pkcs7-mime'],
            'p7m' => ['application/pkcs7-mime', 'application/x-pkcs7-mime'],
            'p7r' => 'application/x-pkcs7-certreqresp',
            'p7s' => 'application/pkcs7-signature',
            'crt' => [
                'application/x-x509-ca-cert',
                'application/x-x509-user-cert',
                'application/pkix-cert',
            ],
            'crl' => ['application/pkix-crl', 'application/pkcs-crl'],
            'der' => 'application/x-x509-ca-cert',
            'kdb' => 'application/octet-stream',
            'pgp' => 'application/pgp',
            'gpg' => 'application/gpg-keys',
            'sst' => 'application/octet-stream',
            'csr' => 'application/octet-stream',
            'rsa' => 'application/x-pkcs7',
            'cer' => ['application/pkix-cert', 'application/x-x509-ca-cert'],
            '3g2' => 'video/3gpp2',
            '3gp' => ['video/3gp', 'video/3gpp'],
            'mp4' => 'video/mp4',
            'm4a' => 'audio/x-m4a',
            'f4v' => ['video/mp4', 'video/x-f4v'],
            'flv' => 'video/x-flv',
            'webm' => 'video/webm',
            'aac' => 'audio/x-acc',
            'm4u' => 'application/vnd.mpegurl',
            'm3u' => 'text/plain',
            'xspf' => 'application/xspf+xml',
            'vlc' => 'application/videolan',
            'wmv' => ['video/x-ms-wmv', 'video/x-ms-asf'],
            'au' => 'audio/x-au',
            'ac3' => 'audio/ac3',
            'flac' => 'audio/x-flac',
            'ogg' => ['audio/ogg', 'video/ogg', 'application/ogg'],
            'kmz' => [
                'application/vnd.google-earth.kmz',
                'application/zip',
                'application/x-zip',
            ],
            'kml' => [
                'application/vnd.google-earth.kml+xml',
                'application/xml',
                'text/xml',
            ],
            'ics' => 'text/calendar',
            'ical' => 'text/calendar',
            'zsh' => 'text/x-scriptzsh',
            '7zip' => [
                'application/x-compressed',
                'application/x-zip-compressed',
                'application/zip',
                'multipart/x-zip',
            ],
            'cdr' => [
                'application/cdr',
                'application/coreldraw',
                'application/x-cdr',
                'application/x-coreldraw',
                'image/cdr',
                'image/x-cdr',
                'zz-application/zz-winassoc-cdr',
            ],
            'wma' => ['audio/x-ms-wma', 'video/x-ms-asf'],
            'jar' => [
                'application/java-archive',
                'application/x-java-application',
                'application/x-jar',
                'application/x-compressed',
            ],
    
            'svg' => ['image/svg+xml', 'image/svg', 'application/xml', 'text/xml'],
    
            'srt' => ['text/srt', 'text/plain', 'application/octet-stream'],
    
            'vtt' => ['text/vtt', 'text/plain'],
            'ico' => ['image/x-icon', 'image/x-ico', 'image/vnd.microsoft.icon'],
    
            'stl' => [
                'application/sla',
                'application/vnd.ms-pki.stl',
                'application/x-navistyle',
            ],
    
        /**
         * Attempts to determine the best mime type for the given file extension.
         *
         * @param string $extension
         *
         * @return string|null The mime type found, or none if unable to determine.
         */
        public static function guessTypeFromExtension(string $extension)
        {
            $extension = trim(strtolower($extension), '. ');
    
            if (!array_key_exists($extension, static::$mimes)) {
                return null;
            }
    
            return is_array(static::$mimes[$extension])
                ? static::$mimes[$extension][0]
                : static::$mimes[$extension];
        }
    
        /**
         * Attempts to determine the best file extension for a given mime type.
         *
    
         * @param string      $type
         * @param string|null $proposedExtension - default extension (in case there is more than one with the same mime type)
    
         *
         * @return string|null The extension determined, or null if unable to match.
         */
        public static function guessExtensionFromType(
            string $type,
    
        ) {
            $type = trim(strtolower($type), '. ');
    
            $proposedExtension = trim(strtolower($proposedExtension));
    
            if ($proposedExtension !== '') {
                if (
                    array_key_exists($proposedExtension, static::$mimes) &&
                    in_array(
                        $type,
                        is_string(static::$mimes[$proposedExtension])
                            ? [static::$mimes[$proposedExtension]]
                            : static::$mimes[$proposedExtension],
                        true,
                    )
                ) {
                    // The detected mime type matches with the proposed extension.
                    return $proposedExtension;
                }
    
                // An extension was proposed, but the media type does not match the mime type list.
                return null;
    
            // Reverse check the mime type list if no extension was proposed.
            // This search is order sensitive!
    
            foreach (static::$mimes as $ext => $types) {
                if (
                    (is_string($types) && $types === $type) ||
    
                    (is_array($types) && in_array($type, $types, true))