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digitalascetic/mail / Service / ProviderServiceTrait.php
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<?php


namespace DigitalAscetic\MailBundle\Service;


trait ProviderServiceTrait
{
    function parseBase64ToDataString(string $data, string $mimeType)
    {
        if (!$this->startsWith($data, 'data:')) {
            return 'data:'.$mimeType.';base64,'.$data;
        }

        return $data;
    }

    function startsWith($haystack, $needle)
    {
        return substr_compare($haystack, $needle, 0, strlen($needle)) === 0;
    }

    public function getEncryption(int $port): ?string
    {
        switch ($port) {
            case 993:
            case 465:
                return 'ssl';
            case 587:
                return 'tls';
            default:
                return null;
        }
    }

    public function getEncryptionPathFromPort(int $port): ?string
    {
        switch ($port) {
            case 993:
            case 465:
            case 587:
                return '/'.$this->getEncryption($port).'/novalidate-cert';
            default:
                return null;
        }
    }

    public function getMimetypeFromExtension(string $ext)
    {
        $mime_types = array(
            '3dm' => 'x-world/x-3dmf',
            '3dmf' => 'x-world/x-3dmf',
            'a' => 'application/octet-stream',
            'aab' => 'application/x-authorware-bin',
            'aam' => 'application/x-authorware-map',
            'aas' => 'application/x-authorware-seg',
            'abc' => 'text/vnd.abc',
            'acgi' => 'text/html',
            'afl' => 'video/animaflex',
            'ai' => 'application/postscript',
            'aif' => 'audio/aiff',
            'aif' => 'audio/x-aiff',
            'aifc' => 'audio/aiff',
            'aifc' => 'audio/x-aiff',
            'aiff' => 'audio/aiff',
            'aiff' => 'audio/x-aiff',
            'aim' => 'application/x-aim',
            'aip' => 'text/x-audiosoft-intra',
            'ani' => 'application/x-navi-animation',
            'aos' => 'application/x-nokia-9000-communicator-add-on-software',
            'aps' => 'application/mime',
            'arc' => 'application/octet-stream',
            'arj' => 'application/arj',
            'arj' => 'application/octet-stream',
            'art' => 'image/x-jg',
            'asf' => 'video/x-ms-asf',
            'asm' => 'text/x-asm',
            'asp' => 'text/asp',
            'asx' => 'application/x-mplayer2',
            'asx' => 'video/x-ms-asf',
            'asx' => 'video/x-ms-asf-plugin',
            'au' => 'audio/basic',
            'au' => 'audio/x-au',
            'avi' => 'application/x-troff-msvideo',
            'avi' => 'video/avi',
            'avi' => 'video/msvideo',
            'avi' => 'video/x-msvideo',
            'avs' => 'video/avs-video',
            'bcpio' => 'application/x-bcpio',
            'bin' => 'application/mac-binary',
            'bin' => 'application/macbinary',
            'bin' => 'application/octet-stream',
            'bin' => 'application/x-binary',
            'bin' => 'application/x-macbinary',
            'bm' => 'image/bmp',
            'bmp' => 'image/bmp',
            'bmp' => 'image/x-windows-bmp',
            'boo' => 'application/book',
            'book' => 'application/book',
            'boz' => 'application/x-bzip2',
            'bsh' => 'application/x-bsh',
            'bz' => 'application/x-bzip',
            'bz2' => 'application/x-bzip2',
            'c' => 'text/plain',
            'c++' => 'text/plain',
            'cat' => 'application/vnd.ms-pki.seccat',
            'cc' => 'text/plain',
            'cc' => 'text/x-c',
            'ccad' => 'application/clariscad',
            'cco' => 'application/x-cocoa',
            'cdf' => 'application/cdf',
            'cdf' => 'application/x-cdf',
            'cdf' => 'application/x-netcdf',
            'cer' => 'application/pkix-cert',
            'cer' => 'application/x-x509-ca-cert',
            'cha' => 'application/x-chat',
            'chat' => 'application/x-chat',
            'class' => 'application/java',
            'class' => 'application/java-byte-code',
            'class' => 'application/x-java-class',
            'com' => 'application/octet-stream',
            'com' => 'text/plain',
            'conf' => 'text/plain',
            'cpio' => 'application/x-cpio',
            'cpp' => 'text/x-c',
            'cpt' => 'application/mac-compactpro',
            'cpt' => 'application/x-compactpro',
            'cpt' => 'application/x-cpt',
            'crl' => 'application/pkcs-crl',
            'crl' => 'application/pkix-crl',
            'crt' => 'application/pkix-cert',
            'crt' => 'application/x-x509-ca-cert',
            'crt' => 'application/x-x509-user-cert',
            'csh' => 'application/x-csh',
            'csh' => 'text/x-script.csh',
            'css' => 'application/x-pointplus',
            'css' => 'text/css',
            'cxx' => 'text/plain',
            'dcr' => 'application/x-director',
            'deepv' => 'application/x-deepv',
            'def' => 'text/plain',
            'der' => 'application/x-x509-ca-cert',
            'dif' => 'video/x-dv',
            'dir' => 'application/x-director',
            'dl' => 'video/dl',
            'dl' => 'video/x-dl',
            'doc' => 'application/msword',
            'dot' => 'application/msword',
            'dp' => 'application/commonground',
            'drw' => 'application/drafting',
            'dump' => 'application/octet-stream',
            'dv' => 'video/x-dv',
            'dvi' => 'application/x-dvi',
            'dwf' => 'drawing/x-dwf (old)',
            'dwf' => 'model/vnd.dwf',
            'dwg' => 'application/acad',
            'dwg' => 'image/vnd.dwg',
            'dwg' => 'image/x-dwg',
            'dxf' => 'application/dxf',
            'dxf' => 'image/vnd.dwg',
            'dxf' => 'image/x-dwg',
            'dxr' => 'application/x-director',
            'el' => 'text/x-script.elisp',
            'elc' => 'application/x-bytecode.elisp (compiled elisp)',
            'elc' => 'application/x-elc',
            'env' => 'application/x-envoy',
            'eps' => 'application/postscript',
            'es' => 'application/x-esrehber',
            'etx' => 'text/x-setext',
            'evy' => 'application/envoy',
            'evy' => 'application/x-envoy',
            'exe' => 'application/octet-stream',
            'f' => 'text/plain',
            'f' => 'text/x-fortran',
            'f77' => 'text/x-fortran',
            'f90' => 'text/plain',
            'f90' => 'text/x-fortran',
            'fdf' => 'application/vnd.fdf',
            'fif' => 'application/fractals',
            'fif' => 'image/fif',
            'fli' => 'video/fli',
            'fli' => 'video/x-fli',
            'flo' => 'image/florian',
            'flx' => 'text/vnd.fmi.flexstor',
            'fmf' => 'video/x-atomic3d-feature',
            'for' => 'text/plain',
            'for' => 'text/x-fortran',
            'fpx' => 'image/vnd.fpx',
            'fpx' => 'image/vnd.net-fpx',
            'frl' => 'application/freeloader',
            'funk' => 'audio/make',
            'g' => 'text/plain',
            'g3' => 'image/g3fax',
            'gif' => 'image/gif',
            'gl' => 'video/gl',
            'gl' => 'video/x-gl',
            'gsd' => 'audio/x-gsm',
            'gsm' => 'audio/x-gsm',
            'gsp' => 'application/x-gsp',
            'gss' => 'application/x-gss',
            'gtar' => 'application/x-gtar',
            'gz' => 'application/x-compressed',
            'gz' => 'application/x-gzip',
            'gzip' => 'application/x-gzip',
            'gzip' => 'multipart/x-gzip',
            'h' => 'text/plain',
            'h' => 'text/x-h',
            'hdf' => 'application/x-hdf',
            'help' => 'application/x-helpfile',
            'hgl' => 'application/vnd.hp-hpgl',
            'hh' => 'text/plain',
            'hh' => 'text/x-h',
            'hlb' => 'text/x-script',
            'hlp' => 'application/hlp',
            'hlp' => 'application/x-helpfile',
            'hlp' => 'application/x-winhelp',
            'hpg' => 'application/vnd.hp-hpgl',
            'hpgl' => 'application/vnd.hp-hpgl',
            'hqx' => 'application/binhex',
            'hqx' => 'application/binhex4',
            'hqx' => 'application/mac-binhex',
            'hqx' => 'application/mac-binhex40',
            'hqx' => 'application/x-binhex40',
            'hqx' => 'application/x-mac-binhex40',
            'hta' => 'application/hta',
            'htc' => 'text/x-component',
            'htm' => 'text/html',
            'html' => 'text/html',
            'htmls' => 'text/html',
            'htt' => 'text/webviewhtml',
            'htx' => 'text/html',
            'ice' => 'x-conference/x-cooltalk',
            'ico' => 'image/x-icon',
            'idc' => 'text/plain',
            'ief' => 'image/ief',
            'iefs' => 'image/ief',
            'iges' => 'application/iges',
            'iges' => 'model/iges',
            'igs' => 'application/iges',
            'igs' => 'model/iges',
            'ima' => 'application/x-ima',
            'imap' => 'application/x-httpd-imap',
            'inf' => 'application/inf',
            'ins' => 'application/x-internett-signup',
            'ip' => 'application/x-ip2',
            'isu' => 'video/x-isvideo',
            'it' => 'audio/it',
            'iv' => 'application/x-inventor',
            'ivr' => 'i-world/i-vrml',
            'ivy' => 'application/x-livescreen',
            'jam' => 'audio/x-jam',
            'jav' => 'text/plain',
            'jav' => 'text/x-java-source',
            'java' => 'text/plain',
            'java' => 'text/x-java-source',
            'jcm' => 'application/x-java-commerce',
            'jfif' => 'image/jpeg',
            'jfif' => 'image/pjpeg',
            'jfif-tbnl' => 'image/jpeg',
            'jpe' => 'image/jpeg',
            'jpe' => 'image/pjpeg',
            'jpeg' => 'image/jpeg',
            'jpeg' => 'image/pjpeg',
            'jpg' => 'image/jpeg',
            'jpg' => 'image/pjpeg',
            'jps' => 'image/x-jps',
            'js' => 'application/x-javascript',
            'jut' => 'image/jutvision',
            'kar' => 'audio/midi',
            'kar' => 'music/x-karaoke',
            'ksh' => 'application/x-ksh',
            'ksh' => 'text/x-script.ksh',
            'la' => 'audio/nspaudio',
            'la' => 'audio/x-nspaudio',
            'lam' => 'audio/x-liveaudio',
            'latex' => 'application/x-latex',
            'lha' => 'application/lha',
            'lha' => 'application/octet-stream',
            'lha' => 'application/x-lha',
            'lhx' => 'application/octet-stream',
            'list' => 'text/plain',
            'lma' => 'audio/nspaudio',
            'lma' => 'audio/x-nspaudio',
            'log' => 'text/plain',
            'lsp' => 'application/x-lisp',
            'lsp' => 'text/x-script.lisp',
            'lst' => 'text/plain',
            'lsx' => 'text/x-la-asf',
            'ltx' => 'application/x-latex',
            'lzh' => 'application/octet-stream',
            'lzh' => 'application/x-lzh',
            'lzx' => 'application/lzx',
            'lzx' => 'application/octet-stream',
            'lzx' => 'application/x-lzx',
            'm' => 'text/plain',
            'm' => 'text/x-m',
            'm1v' => 'video/mpeg',
            'm2a' => 'audio/mpeg',
            'm2v' => 'video/mpeg',
            'm3u' => 'audio/x-mpequrl',
            'man' => 'application/x-troff-man',
            'map' => 'application/x-navimap',
            'mar' => 'text/plain',
            'mbd' => 'application/mbedlet',
            'mc' => 'application/x-magic-cap-package-1.0',
            'mcd' => 'application/mcad',
            'mcd' => 'application/x-mathcad',
            'mcf' => 'image/vasa',
            'mcf' => 'text/mcf',
            'mcp' => 'application/netmc',
            'me' => 'application/x-troff-me',
            'mht' => 'message/rfc822',
            'mhtml' => 'message/rfc822',
            'mid' => 'application/x-midi',
            'mid' => 'audio/midi',
            'mid' => 'audio/x-mid',
            'mid' => 'audio/x-midi',
            'mid' => 'music/crescendo',
            'mid' => 'x-music/x-midi',
            'midi' => 'application/x-midi',
            'midi' => 'audio/midi',
            'midi' => 'audio/x-mid',
            'midi' => 'audio/x-midi',
            'midi' => 'music/crescendo',
            'midi' => 'x-music/x-midi',
            'mif' => 'application/x-frame',
            'mif' => 'application/x-mif',
            'mime' => 'message/rfc822',
            'mime' => 'www/mime',
            'mjf' => 'audio/x-vnd.audioexplosion.mjuicemediafile',
            'mjpg' => 'video/x-motion-jpeg',
            'mm' => 'application/base64',
            'mm' => 'application/x-meme',
            'mme' => 'application/base64',
            'mod' => 'audio/mod',
            'mod' => 'audio/x-mod',
            'moov' => 'video/quicktime',
            'mov' => 'video/quicktime',
            'movie' => 'video/x-sgi-movie',
            'mp2' => 'audio/mpeg',
            'mp2' => 'audio/x-mpeg',
            'mp2' => 'video/mpeg',
            'mp2' => 'video/x-mpeg',
            'mp2' => 'video/x-mpeq2a',
            'mp3' => 'audio/mpeg3',
            'mp3' => 'audio/x-mpeg-3',
            'mp3' => 'video/mpeg',
            'mp3' => 'video/x-mpeg',
            'mpa' => 'audio/mpeg',
            'mpa' => 'video/mpeg',
            'mpc' => 'application/x-project',
            'mpe' => 'video/mpeg',
            'mpeg' => 'video/mpeg',
            'mpg' => 'audio/mpeg',
            'mpg' => 'video/mpeg',
            'mpga' => 'audio/mpeg',
            'mpp' => 'application/vnd.ms-project',
            'mpt' => 'application/x-project',
            'mpv' => 'application/x-project',
            'mpx' => 'application/x-project',
            'mrc' => 'application/marc',
            'ms' => 'application/x-troff-ms',
            'mv' => 'video/x-sgi-movie',
            'my' => 'audio/make',
            'mzz' => 'application/x-vnd.audioexplosion.mzz',
            'nap' => 'image/naplps',
            'naplps' => 'image/naplps',
            'nc' => 'application/x-netcdf',
            'ncm' => 'application/vnd.nokia.configuration-message',
            'nif' => 'image/x-niff',
            'niff' => 'image/x-niff',
            'nix' => 'application/x-mix-transfer',
            'nsc' => 'application/x-conference',
            'nvd' => 'application/x-navidoc',
            'o' => 'application/octet-stream',
            'oda' => 'application/oda',
            'omc' => 'application/x-omc',
            'omcd' => 'application/x-omcdatamaker',
            'omcr' => 'application/x-omcregerator',
            'p' => 'text/x-pascal',
            'p10' => 'application/pkcs10',
            'p10' => 'application/x-pkcs10',
            'p12' => 'application/pkcs-12',
            'p12' => 'application/x-pkcs12',
            'p7a' => 'application/x-pkcs7-signature',
            'p7c' => 'application/pkcs7-mime',
            'p7c' => 'application/x-pkcs7-mime',
            'p7m' => 'application/pkcs7-mime',
            'p7m' => 'application/x-pkcs7-mime',
            'p7r' => 'application/x-pkcs7-certreqresp',
            'p7s' => 'application/pkcs7-signature',
            'part' => 'application/pro_eng',
            'pas' => 'text/pascal',
            'pbm' => 'image/x-portable-bitmap',
            'pcl' => 'application/vnd.hp-pcl',
            'pcl' => 'application/x-pcl',
            'pct' => 'image/x-pict',
            'pcx' => 'image/x-pcx',
            'pdb' => 'chemical/x-pdb',
            'pdf' => 'application/pdf',
            'pfunk' => 'audio/make',
            'pgm' => 'image/x-portable-greymap',
            'pic' => 'image/pict',
            'pict' => 'image/pict',
            'pkg' => 'application/x-newton-compatible-pkg',
            'pko' => 'application/vnd.ms-pki.pko',
            'pl' => 'text/plain',
            'pl' => 'text/x-script.perl',
            'plx' => 'application/x-pixclscript',
            'pm' => 'image/x-xpixmap',
            'pm' => 'text/x-script.perl-module',
            'pm4' => 'application/x-pagemaker',
            'pm5' => 'application/x-pagemaker',
            'png' => 'image/png',
            'pnm' => 'application/x-portable-anymap',
            'pnm' => 'image/x-portable-anymap',
            'pot' => 'application/mspowerpoint',
            'pot' => 'application/vnd.ms-powerpoint',
            'pov' => 'model/x-pov',
            'ppa' => 'application/vnd.ms-powerpoint',
            'ppm' => 'image/x-portable-pixmap',
            'pps' => 'application/mspowerpoint',
            'pps' => 'application/vnd.ms-powerpoint',
            'ppt' => 'application/mspowerpoint',
            'ppt' => 'application/powerpoint',
            'ppt' => 'application/vnd.ms-powerpoint',
            'ppt' => 'application/x-mspowerpoint',
            'ppz' => 'application/mspowerpoint',
            'pre' => 'application/x-freelance',
            'prt' => 'application/pro_eng',
            'ps' => 'application/postscript',
            'psd' => 'application/octet-stream',
            'pvu' => 'paleovu/x-pv',
            'pwz' => 'application/vnd.ms-powerpoint',
            'py' => 'text/x-script.phyton',
            'pyc' => 'applicaiton/x-bytecode.python',
            'qcp' => 'audio/vnd.qcelp',
            'qd3' => 'x-world/x-3dmf',
            'qd3d' => 'x-world/x-3dmf',
            'qif' => 'image/x-quicktime',
            'qt' => 'video/quicktime',
            'qtc' => 'video/x-qtc',
            'qti' => 'image/x-quicktime',
            'qtif' => 'image/x-quicktime',
            'ra' => 'audio/x-pn-realaudio',
            'ra' => 'audio/x-pn-realaudio-plugin',
            'ra' => 'audio/x-realaudio',
            'ram' => 'audio/x-pn-realaudio',
            'ras' => 'application/x-cmu-raster',
            'ras' => 'image/cmu-raster',
            'ras' => 'image/x-cmu-raster',
            'rast' => 'image/cmu-raster',
            'rexx' => 'text/x-script.rexx',
            'rf' => 'image/vnd.rn-realflash',
            'rgb' => 'image/x-rgb',
            'rm' => 'application/vnd.rn-realmedia',
            'rm' => 'audio/x-pn-realaudio',
            'rmi' => 'audio/mid',
            'rmm' => 'audio/x-pn-realaudio',
            'rmp' => 'audio/x-pn-realaudio',
            'rmp' => 'audio/x-pn-realaudio-plugin',
            'rng' => 'application/ringing-tones',
            'rng' => 'application/vnd.nokia.ringing-tone',
            'rnx' => 'application/vnd.rn-realplayer',
            'roff' => 'application/x-troff',
            'rp' => 'image/vnd.rn-realpix',
            'rpm' => 'audio/x-pn-realaudio-plugin',
            'rt' => 'text/richtext',
            'rt' => 'text/vnd.rn-realtext',
            'rtf' => 'application/rtf',
            'rtf' => 'application/x-rtf',
            'rtf' => 'text/richtext',
            'rtx' => 'application/rtf',
            'rtx' => 'text/richtext',
            'rv' => 'video/vnd.rn-realvideo',
            's' => 'text/x-asm',
            's3m' => 'audio/s3m',
            'saveme' => 'aapplication/octet-stream',
            'sbk' => 'application/x-tbook',
            'scm' => 'application/x-lotusscreencam',
            'scm' => 'text/x-script.guile',
            'scm' => 'text/x-script.scheme',
            'scm' => 'video/x-scm',
            'sdml' => 'text/plain',
            'sdp' => 'application/sdp',
            'sdp' => 'application/x-sdp',
            'sdr' => 'application/sounder',
            'sea' => 'application/sea',
            'sea' => 'application/x-sea',
            'set' => 'application/set',
            'sgm' => 'text/sgml',
            'sgm' => 'text/x-sgml',
            'sgml' => 'text/sgml',
            'sgml' => 'text/x-sgml',
            'sh' => 'application/x-bsh',
            'sh' => 'application/x-sh',
            'sh' => 'application/x-shar',
            'sh' => 'text/x-script.sh',
            'shar' => 'application/x-bsh',
            'shar' => 'application/x-shar',
            'shtml' => 'text/html',
            'shtml' => 'text/x-server-parsed-html',
            'sid' => 'audio/x-psid',
            'sit' => 'application/x-sit',
            'sit' => 'application/x-stuffit',
            'skd' => 'application/x-koan',
            'skm' => 'application/x-koan',
            'skp' => 'application/x-koan',
            'skt' => 'application/x-koan',
            'sl' => 'application/x-seelogo',
            'smi' => 'application/smil',
            'smil' => 'application/smil',
            'snd' => 'audio/basic',
            'snd' => 'audio/x-adpcm',
            'sol' => 'application/solids',
            'spc' => 'application/x-pkcs7-certificates',
            'spc' => 'text/x-speech',
            'spl' => 'application/futuresplash',
            'spr' => 'application/x-sprite',
            'sprite' => 'application/x-sprite',
            'src' => 'application/x-wais-source',
            'ssi' => 'text/x-server-parsed-html',
            'ssm' => 'application/streamingmedia',
            'sst' => 'application/vnd.ms-pki.certstore',
            'step' => 'application/step',
            'stl' => 'application/sla',
            'stl' => 'application/vnd.ms-pki.stl',
            'stl' => 'application/x-navistyle',
            'stp' => 'application/step',
            'sv4cpio' => 'application/x-sv4cpio',
            'sv4crc' => 'application/x-sv4crc',
            'svf' => 'image/vnd.dwg',
            'svf' => 'image/x-dwg',
            'svr' => 'application/x-world',
            'svr' => 'x-world/x-svr',
            'swf' => 'application/x-shockwave-flash',
            't' => 'application/x-troff',
            'talk' => 'text/x-speech',
            'tar' => 'application/x-tar',
            'tbk' => 'application/toolbook',
            'tbk' => 'application/x-tbook',
            'tcl' => 'application/x-tcl',
            'tcl' => 'text/x-script.tcl',
            'tcsh' => 'text/x-script.tcsh',
            'tex' => 'application/x-tex',
            'texi' => 'application/x-texinfo',
            'texinfo' => ' lication/x-texinfo',
            'text' => 'application/plain',
            'text' => 'text/plain',
            'tgz' => 'application/gnutar',
            'tgz' => 'application/x-compressed',
            'tif' => 'image/tiff',
            'tif' => 'image/x-tiff',
            'tiff' => 'image/tiff',
            'tiff' => 'image/x-tiff',
            'tr' => 'application/x-troff',
            'tsi' => 'audio/tsp-audio',
            'tsp' => 'application/dsptype',
            'tsp' => 'audio/tsplayer',
            'tsv' => 'text/tab-separated-values',
            'turbot' => 'image/florian',
            'txt' => 'text/plain',
            'uil' => 'text/x-uil',
            'uni' => 'text/uri-list',
            'unis' => 'text/uri-list',
            'unv' => 'application/i-deas',
            'uri' => 'text/uri-list',
            'uris' => 'text/uri-list',
            'ustar' => 'application/x-ustar',
            'ustar' => 'multipart/x-ustar',
            'uu' => 'application/octet-stream',
            'uu' => 'text/x-uuencode',
            'uue' => 'text/x-uuencode',
            'vcd' => 'application/x-cdlink',
            'vcs' => 'text/x-vcalendar',
            'vda' => 'application/vda',
            'vdo' => 'video/vdo',
            'vew' => 'application/groupwise',
            'viv' => 'video/vivo',
            'viv' => 'video/vnd.vivo',
            'vivo' => 'video/vivo',
            'vivo' => 'video/vnd.vivo',
            'vmd' => 'application/vocaltec-media-desc',
            'vmf' => 'application/vocaltec-media-file',
            'voc' => 'audio/voc',
            'voc' => 'audio/x-voc',
            'vos' => 'video/vosaic',
            'vox' => 'audio/voxware',
            'vqe' => 'audio/x-twinvq-plugin',
            'vqf' => 'audio/x-twinvq',
            'vql' => 'audio/x-twinvq-plugin',
            'vrml' => 'application/x-vrml',
            'vrml' => 'model/vrml',
            'vrml' => 'x-world/x-vrml',
            'vrt' => 'x-world/x-vrt',
            'vsd' => 'application/x-visio',
            'vst' => 'application/x-visio',
            'vsw' => 'application/x-visio',
            'w60' => 'application/wordperfect6.0',
            'w61' => 'application/wordperfect6.1',
            'w6w' => 'application/msword',
            'wav' => 'audio/wav',
            'wav' => 'audio/x-wav',
            'wb1' => 'application/x-qpro',
            'wbmp' => 'image/vnd.wap.wbmp',
            'web' => 'application/vnd.xara',
            'wiz' => 'application/msword',
            'wk1' => 'application/x-123',
            'wmf' => 'windows/metafile',
            'wml' => 'text/vnd.wap.wml',
            'wmlc' => 'application/vnd.wap.wmlc',
            'wmls' => 'text/vnd.wap.wmlscript',
            'wmlsc' => 'application/vnd.wap.wmlscriptc',
            'word' => 'application/msword',
            'wp' => 'application/wordperfect',
            'wp5' => 'application/wordperfect',
            'wp5' => 'application/wordperfect6.0',
            'wp6' => 'application/wordperfect',
            'wpd' => 'application/wordperfect',
            'wpd' => 'application/x-wpwin',
            'wq1' => 'application/x-lotus',
            'wri' => 'application/mswrite',
            'wri' => 'application/x-wri',
            'wrl' => 'application/x-world',
            'wrl' => 'model/vrml',
            'wrl' => 'x-world/x-vrml',
            'wrz' => 'model/vrml',
            'wrz' => 'x-world/x-vrml',
            'wsc' => 'text/scriplet',
            'wsrc' => 'application/x-wais-source',
            'wtk' => 'application/x-wintalk',
            'xbm' => 'image/x-xbitmap',
            'xbm' => 'image/x-xbm',
            'xbm' => 'image/xbm',
            'xdr' => 'video/x-amt-demorun',
            'xgz' => 'xgl/drawing',
            'xif' => 'image/vnd.xiff',
            'xl' => 'application/excel',
            'xla' => 'application/excel',
            'xla' => 'application/x-excel',
            'xla' => 'application/x-msexcel',
            'xlb' => 'application/excel',
            'xlb' => 'application/vnd.ms-excel',
            'xlb' => 'application/x-excel',
            'xlc' => 'application/excel',
            'xlc' => 'application/vnd.ms-excel',
            'xlc' => 'application/x-excel',
            'xld' => 'application/excel',
            'xld' => 'application/x-excel',
            'xlk' => 'application/excel',
            'xlk' => 'application/x-excel',
            'xll' => 'application/excel',
            'xll' => 'application/vnd.ms-excel',
            'xll' => 'application/x-excel',
            'xlm' => 'application/excel',
            'xlm' => 'application/vnd.ms-excel',
            'xlm' => 'application/x-excel',
            'xls' => 'application/excel',
            'xls' => 'application/vnd.ms-excel',
            'xls' => 'application/x-excel',
            'xls' => 'application/x-msexcel',
            'xlt' => 'application/excel',
            'xlt' => 'application/x-excel',
            'xlv' => 'application/excel',
            'xlv' => 'application/x-excel',
            'xlw' => 'application/excel',
            'xlw' => 'application/vnd.ms-excel',
            'xlw' => 'application/x-excel',
            'xlw' => 'application/x-msexcel',
            'xm' => 'audio/xm',
            'xml' => 'application/xml',
            'xml' => 'text/xml',
            'xmz' => 'xgl/movie',
            'xpix' => 'application/x-vnd.ls-xpix',
            'xpm' => 'image/x-xpixmap',
            'xpm' => 'image/xpm',
            'x-png' => 'image/png',
            'xsr' => 'video/x-amt-showrun',
            'xwd' => 'image/x-xwd',
            'xwd' => 'image/x-xwindowdump',
            'xyz' => 'chemical/x-pdb',
            'z' => 'application/x-compress',
            'z' => 'application/x-compressed',
            'zip' => 'application/x-compressed',
            'zip' => 'application/x-zip-compressed',
            'zip' => 'application/zip',
            'zip' => 'multipart/x-zip',
            'zoo' => 'application/octet-stream',
            'zsh' => 'text/x-script.zsh)',
        );

        return $mime_types[$ext];
    }
}