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MimeType.php
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<?php namespace League\Flysystem\Util; use Finfo; use ErrorException; /** * @internal */ class MimeType { /** * Detects MIME Type based on given content. * * @param mixed $content * * @return string|null MIME Type or NULL if no mime type detected */ public static function detectByContent($content) { if ( ! class_exists('Finfo') || ! is_string($content)) { return; } try { $finfo = new Finfo(FILEINFO_MIME_TYPE); return $finfo->buffer($content) ?: null; } catch( ErrorException $e ) { // This is caused by an array to string conversion error. } } /** * Detects MIME Type based on file extension. * * @param string $extension * * @return string|null MIME Type or NULL if no extension detected */ public static function detectByFileExtension($extension) { static $extensionToMimeTypeMap; if (! $extensionToMimeTypeMap) { $extensionToMimeTypeMap = static::getExtensionToMimeTypeMap(); } if (isset($extensionToMimeTypeMap[$extension])) { return $extensionToMimeTypeMap[$extension]; } return 'text/plain'; } /** * @param string $filename * * @return string */ public static function detectByFilename($filename) { $extension = strtolower(pathinfo($filename, PATHINFO_EXTENSION)); return empty($extension) ? 'text/plain' : static::detectByFileExtension($extension); } /** * @return array Map of file extension to MIME Type */ public static function getExtensionToMimeTypeMap() { return [ 'hqx' => 'application/mac-binhex40', 'cpt' => 'application/mac-compactpro', 'csv' => 'text/x-comma-separated-values', 'bin' => 'application/octet-stream', 'dms' => 'application/octet-stream', 'lha' => 'application/octet-stream', 'lzh' => 'application/octet-stream', 'exe' => 'application/octet-stream', 'class' => 'application/octet-stream', 'psd' => 'application/x-photoshop', 'so' => 'application/octet-stream', 'sea' => 'application/octet-stream', 'dll' => 'application/octet-stream', 'oda' => 'application/oda', 'pdf' => 'application/pdf', 'ai' => 'application/pdf', 'eps' => 'application/postscript', 'ps' => 'application/postscript', 'smi' => 'application/smil', 'smil' => 'application/smil', 'mif' => 'application/vnd.mif', 'xls' => 'application/vnd.ms-excel', 'ppt' => 'application/powerpoint', 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation', '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-httpd-php', 'php4' => 'application/x-httpd-php', 'php3' => 'application/x-httpd-php', 'phtml' => 'application/x-httpd-php', 'phps' => 'application/x-httpd-php-source', 'js' => 'application/javascript', 'swf' => 'application/x-shockwave-flash', 'sit' => 'application/x-stuffit', 'tar' => 'application/x-tar', 'tgz' => 'application/x-tar', 'z' => 'application/x-compress', 'xhtml' => 'application/xhtml+xml', 'xht' => 'application/xhtml+xml', 'zip' => 'application/x-zip', 'rar' => 'application/x-rar', 'mid' => 'audio/midi', 'midi' => 'audio/midi', 'mpga' => 'audio/mpeg', 'mp2' => 'audio/mpeg', 'mp3' => 'audio/mpeg', 'aif' => 'audio/x-aiff', 'aiff' => 'audio/x-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', 'jpg' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'jpe' => 'image/jpeg', 'png' => 'image/png', 'gif' => 'image/gif', 'bmp' => 'image/bmp', 'tiff' => 'image/tiff', 'tif' => 'image/tiff', 'svg' => 'image/svg+xml', 'css' => 'text/css', 'html' => 'text/html', 'htm' => 'text/html', 'shtml' => 'text/html', 'txt' => 'text/plain', 'text' => 'text/plain', 'log' => 'text/plain', 'rtx' => 'text/richtext', 'rtf' => 'text/rtf', 'xml' => 'application/xml', 'xsl' => 'application/xml', 'mpeg' => 'video/mpeg', 'mpg' => 'video/mpeg', 'mpe' => 'video/mpeg', 'qt' => 'video/quicktime', 'mov' => 'video/quicktime', 'avi' => 'video/x-msvideo', 'movie' => 'video/x-sgi-movie', 'doc' => 'application/msword', 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'dot' => 'application/msword', 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'word' => 'application/msword', 'xl' => 'application/excel', 'eml' => 'message/rfc822', 'json' => 'application/json', 'pem' => 'application/x-x509-user-cert', 'p10' => 'application/x-pkcs10', 'p12' => 'application/x-pkcs12', 'p7a' => 'application/x-pkcs7-signature', 'p7c' => 'application/pkcs7-mime', 'p7m' => 'application/pkcs7-mime', 'p7r' => 'application/x-pkcs7-certreqresp', 'p7s' => 'application/pkcs7-signature', 'crt' => 'application/x-x509-ca-cert', 'crl' => 'application/pkix-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', '3g2' => 'video/3gpp2', '3gp' => 'video/3gp', 'mp4' => 'video/mp4', 'm4a' => 'audio/x-m4a', 'f4v' => 'video/mp4', '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', 'au' => 'audio/x-au', 'ac3' => 'audio/ac3', 'flac' => 'audio/x-flac', 'ogg' => 'audio/ogg', 'kmz' => 'application/vnd.google-earth.kmz', 'kml' => 'application/vnd.google-earth.kml+xml', 'ics' => 'text/calendar', 'zsh' => 'text/x-scriptzsh', '7zip' => 'application/x-7z-compressed', 'cdr' => 'application/cdr', 'wma' => 'audio/x-ms-wma', 'jar' => 'application/java-archive', ]; } }