se/SE/se-lib/FileStorage.php

<?php
// @requires $_SERVER['SERVER_NAME']

Lib::loadClass('Http');

/*
# FileStorage:
- [x] create CRM_FILES - sql at the end of file
  - [x] only meta fields, perms? - no perms in relation based on record which is connected
- [x] add file to storage - API POST/PUT action
  - [ ] base storage folder - from config - default /Library/Server/Web/Data/p5-pliki, chmod - add to instalator, upgrade
	- [x] subfolders like postfix, but [0-9],[A-Z] - substr(strrev(base_convert($id, 10, 10 + 26)), 0, 1) - 36 folderów
	- [x] file connected to user - A_RECORD_CREATE_AUTHOR
	- [ ] ? file connected to user - A_OWNER (L_APP_USER)?
- [ ] connect file to record - generate {tbl_name}__#REF__FILES
  - [ ] ? add A_HAS_REF field to struct - cache to check if file is connected to any record
	- [-] add sync state - remote file name, mtime to check if file has changed in Storage or remote record folder
	- [-] sync - conflict - file connected with 2 objects and both changed and try to store changes to FileStorage
	  - [ ] add version to REF table
- [x] use streams for upload - better memory usage
- [ ] use streams for upload progress in form - http://www.webiny.com/blog/2012/05/07/webiny-file-upload-with-html5-and-ajax-using-php-streams/
- [x] add IP to table struct
- [ ] WebDav - use only files from this table @see WebDav on Mac OS X https://www.qnap.com/pl-pl/tutorial/con_show.php?op=showone&cid=75
- [ ] Update file - add {tblName}__#VERSIONS table (work like _HIST, but only on update file content)
*/
class FileStorage {

	public static function isProduction() {// TODO: mv to Config
		// return V::get('P5_ENV', '/Library/Server/Web/Data/p5-file-storage', $_SERVER);
		// $env = getenv('P5_ENV');
		// if (empty($env)) $env = 'production';
		return ('production' == V::get('P5_ENV', 'production', $_SERVER));
	}

	public static function getRootStoragePath() {
		return (self::isProduction()) ? '/Library/Server/Web/Data/p5-file-storage' : '/tmp/test-upload-file-storage';
	}

	public static function getTableName() {
		return (self::isProduction()) ? 'CRM_FILES' : 'CRM_FILES__#DEV';
	}

	public static function getFileById($idFile, $forceVersion = null) {
		$fileObject = array();// @returns array
		$fileObject['_raw'] = null;// raw object from database
		$fileObject['id'] = (int)$idFile;
		$fileObject['name'] = '';
		$fileObject['relativePath'] = null;
		$fileObject['absolutePath'] = null;
		$fileObject['exists'] = null;
		$fileObject['size'] = 0;
		$fileObject['mimeType'] = null;
		$fileObject['version'] = 0;
		$rowFile = self::_getRowFile($idFile, $forceVersion);
		$fileObject['_raw'] = $rowFile;
		// TODO: check perms
		$fileObject['name'] = V::get('FILE_LABEL', $id, $rowFile);
		$fileObject['version'] = ($forceVersion) ? $forceVersion : V::get('FILE_VERSION', 0, $rowFile);
		$fileObject['relativePath'] = self::generateFilePathHashFromId($rowFile['ID'], $version);
		$fileObject['absolutePath'] = self::getRootStoragePath() . "/" . $fileObject['relativePath'];
		$fileObject['exists'] = file_exists($fileObject['absolutePath']);
		if ($fileObject['exists']) {
			$fileObject['size'] = ($rowFile['FILE_SIZE']) ? $rowFile['FILE_SIZE'] : filesize($absFilePath);
			$fileObject['mimeType'] = ($rowFile['FILE_MIME_TYPE']) ? $rowFile['FILE_MIME_TYPE'] : mime_content_type($absFilePath);
		}
		return $fileObject;
	}

	public static function addFileStream($inputHandler, $name = '') {
		$sqlLogin = User::getLogin();
		$sqlIP = Request::getUserIp();
		$sqlLabel = DB::getPDO()->quote($name, PDO::PARAM_STR);
		$idFile = self::_createRowFile($name);
		DBG::_('DBG', '>1', "idFile", $idFile, __CLASS__, __FUNCTION__, __LINE__);
		$fileObject = self::getFileById($idFile);
		$absFilePath = $fileObject['absolutePath'];
		$dirPath = dirname($absFilePath);
		@mkdir($dirPath, $mode = 0775, $recursive = true);
		if (!file_exists($dirPath)) throw new HttpException("#L" . __LINE__ . ": Cannot create path", 500);
		@chmod($dirPath, $mode = 0775);

		// create a temp file where to save data from the input stream
		$fileHandler = fopen($absFilePath, "w+");
		DBG::_('DBG', '>1', "absFilePath", $absFilePath, __CLASS__, __FUNCTION__, __LINE__);

		// save data from the input stream
		while (true) {
			$buffer = fgets($inputHandler, 4096);
			if (strlen($buffer) == 0) {
				fclose($inputHandler);
				fclose($fileHandler);
				break;
			}
			fwrite($fileHandler, $buffer);
		}

		if (!file_exists($absFilePath)) throw new Exception("Cannot save file");
		self::_uploadUpdateMimeType($idFile, $absFilePath);
		self::_uploadUpdateStat($idFile, $absFilePath);
		return $idFile;
	}

	public static function addFile($content, $name = '') {
		$rootFileStoragePath = self::getRootStoragePath();
		$idFile = self::_createRowFile($name);
		DBG::_('DBG', '>1', "idFile", $idFile, __CLASS__, __FUNCTION__, __LINE__);
		$fileObject = self::getFileById($idFile);
		$absFilePath = $fileObject['absolutePath'];
		$dirPath = dirname($absFilePath);
		@mkdir($dirPath, $mode = 0777, $recursive = true);
		if (!file_exists($dirPath)) throw new Exception("Cannot create path");
		@chmod($dirPath, $mode = 0777);

		$fp = fopen($absFilePath, 'w');
		fwrite($fp, $fileContent);
		fclose($fp);

		if (!file_exists($absFilePath)) throw new Exception("Cannot save file");
		self::_uploadUpdateMimeType($idFile, $absFilePath);
		self::_uploadUpdateStat($idFile, $absFilePath);
		return $idFile;
	}

	public static function updateFileStream($idFile, $inputHandler, $name = '') {
		throw new Exception("TODO: insert into `\{\$tblName\}__#VERSIONS` for file `{$idFile}`");
		$fileObject = self::getFileById($idFile);
		if (!$fileObject['exists']) throw new Exception("Oryginalny plik nie istnieje");
		// TODO: check perms
		$fileVersion = self::_createUpdateRowFile($idFile, $name);// insert into `{$tblName}__#VERSIONS` ( `FILE_VERSION` = 1 + (select MAX(`FILE_VERSION`) from #VER) )
		{// upload by stream

		}
		self::_updateRowFileFromVersion($fileVersion);// update `{$tblName}` values from `{$tblName}__#VERSIONS`
	}

	public static function _createRowFile($name = '') {
		$sqlLogin = User::getLogin();
		$sqlLabel = DB::getPDO()->quote($name, PDO::PARAM_STR);
		$sqlIP = DB::getPDO()->quote(Request::getUserIp(), PDO::PARAM_STR);
		$sqlTblName = self::getTableName();
		$sql = "
			insert into `{$sqlTblName}` (`A_RECORD_CREATE_AUTHOR`,`A_RECORD_CREATE_DATE`,`FILE_LABEL`,`A_USER_IP`)
			values ('{$sqlLogin}', NOW(), {$sqlLabel}, INET_ATON({$sqlIP}))
		";
		DBG::_('DBG', '>2', "sql", $sql, __CLASS__, __FUNCTION__, __LINE__);
		DB::getPDO()->exec($sql);
		return DB::getPDO()->lastInsertId();
	}

	public static function _getRowFile($idFile, $version = null) {
		$idFile = intval($idFile);
		if ($idFile <= 0) throw new HttpException("#L" . __LINE__ . ": Wrong file id", 500);
		$sqlId = DB::getPDO()->quote($idFile, PDO::PARAM_INT);
		$sqlTblName = self::getTableName();
		$rows = DB::getPDO()->fetchAll("
			select f.*
			from `{$sqlTblName}` f
			where f.ID = {$sqlId}
		");
		DBG::_('DBG', '>2', "rows", $rows, __CLASS__, __FUNCTION__, __LINE__);
		if (empty($rows)) throw new HttpException("Plik nie istnieje w bazie", 404);
		$rowFile = $rows[0];
		// TODO: fetch info by $version
		return $rowFile;
	}

	public static function _uploadUpdateMimeType($idFile, $absPath) {
		$mimeType = mime_content_type($absPath);
		$mtime = filemtime($absPath);
		DBG::_('DBG', '>1', "mimeType", $mimeType, __CLASS__, __FUNCTION__, __LINE__);
		if (!self::isAllowedMimeType($mimeType)) {
			$sqlTblName = self::getTableName();
			if ('inode/x-empty' == $mimeType) {// empty file
				DB::getPDO()->exec("
					update `{$sqlTblName}`
					set `A_STATUS` = 'WARNING'
					--		, `A_STATUS_INFO` = ''
						, `FILE_MIME_TYPE` = '{$mimeType}'
						, `FILE_MTIME` = '{$mtime}'
						, `FILE_SIZE` = 0
					where `ID` = '{$idFile}'
				");
				throw new AlertWarningException("Wgrano pusty plik");
			} else {// non empty, not allowed mime type
				$size = filesize($absPath);
				DB::getPDO()->exec("
					update `{$sqlTblName}`
					set `A_STATUS` = 'DELETED'
					--		, `A_STATUS_INFO` = ''
						, `FILE_MIME_TYPE` = '{$mimeType}'
						, `FILE_MTIME` = '{$mtime}'
						, `FILE_SIZE` = '{$size}'
					where `ID` = '{$idFile}'
				");
				rename($absPath, "{$absPath}-not-allowed-mime-type");
				throw new Exception("Niedozwolony typ pliku '{$mimeType}'");
			}
		}
	}

	public static function _uploadUpdateStat($idFile, $absPath) {
		$mimeType = mime_content_type($absPath);
		$mtime = filemtime($absPath);
		$size = filesize($absPath);
		DBG::_('DBG', '>1', "mtime", $mtime, __CLASS__, __FUNCTION__, __LINE__);
		DBG::_('DBG', '>1', "size", $size, __CLASS__, __FUNCTION__, __LINE__);
		$sqlTblName = self::getTableName();
		DB::getPDO()->exec("
			update `{$sqlTblName}`
			set `A_STATUS` = 'NORMAL'
				, `FILE_MIME_TYPE` = '{$mimeType}'
				, `FILE_MTIME` = '{$mtime}'
				, `FILE_SIZE` = '{$size}'
			where `ID` = '{$idFile}'
		");
	}

	public static function generateFilePathHashFromId($intId, $version = null) {
		// $base36Id = base_convert($intId, 10, 10 + 26);// 0-9 + A-Z
		$base36Id = base_convert($intId, 10, 10 + 6);// 0-9 + A-F
		$base36Str = str_pad($base36Id, 10, "0", STR_PAD_LEFT);
		$base36Str = strrev($base36Str);
		$pathParts = array();
		$pathParts[] = substr($base36Str, 0, 2);
		$pathParts[] = substr($base36Str, 2, 2);
		$pathParts[] = substr($base36Str, 4);
		$hashPath = implode("/", $pathParts);
		// echo "ID($intId) converted to ({$base36Id})\t to ({$base36Str})\t to path ({$hashPath})\n";
		// TODO: add $version to file name: .= "-v{$version}"
		return $hashPath;
	}

	public static function reinstall() {
		try {
			DB::getPDO()->exec("
CREATE TABLE IF NOT EXISTS `CRM_FILES` (
	`ID` int(11) NOT NULL AUTO_INCREMENT,
	`FILE_HASH` varchar(255) NOT NULL, -- generated from ID by hash function - only for cache
	`FILE_LABEL` varchar(255) NOT NULL, -- original file name or system name
	`FILE_TYPE` varchar(32) NOT NULL DEFAULT '', -- $TRG_FILE -> config/.cnf--folders...
	`FILE_MIME_TYPE` varchar(64) NOT NULL DEFAULT '',
	`FILE_MTIME` datetime NOT NULL,
	`FILE_SIZE` bigint NOT NULL DEFAULT 0,
	`FILE_VERSION` int(11) NOT NULL DEFAULT 0, -- used for update
	`A_STATUS` enum('WAITING','NORMAL','MONITOR','OFF_HARD','OFF_SOFT','DELETED','WARNING') NOT NULL DEFAULT 'WAITING',
	`A_RECORD_CREATE_DATE` datetime DEFAULT NULL,
	`A_RECORD_CREATE_AUTHOR` varchar(20) NOT NULL DEFAULT '',
	`A_RECORD_UPDATE_DATE` datetime DEFAULT NULL,
	`A_RECORD_UPDATE_AUTHOR` varchar(20) NOT NULL DEFAULT '',
	`A_ADM_COMPANY` varchar(100) NOT NULL DEFAULT '',
	`A_CLASSIFIED` varchar(100) NOT NULL DEFAULT '',
	`A_USER_IP` bigint NOT NULL DEFAULT '0',
	PRIMARY KEY (`ID`),
	KEY `FILE_TYPE` (`FILE_TYPE`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin2;
			");
			DB::getPDO()->exec("
CREATE TABLE IF NOT EXISTS `CRM_FILES__#DEV` (
	`ID` int(11) NOT NULL AUTO_INCREMENT,
	`FILE_HASH` varchar(255) NOT NULL, -- generated from ID by hash function - only for cache
  `FILE_LABEL` varchar(255) NOT NULL, -- original file name or system name
  `FILE_TYPE` varchar(32) NOT NULL DEFAULT '', -- $TRG_FILE -> config/.cnf--folders...
	`FILE_MIME_TYPE` varchar(64) NOT NULL DEFAULT '',
	`FILE_MTIME` datetime NOT NULL,
	`FILE_SIZE` bigint NOT NULL DEFAULT 0,
	`FILE_VERSION` int(11) NOT NULL DEFAULT 0, -- used for update
	`A_STATUS` enum('WAITING','NORMAL','MONITOR','OFF_HARD','OFF_SOFT','DELETED','WARNING') NOT NULL DEFAULT 'WAITING',
	`A_RECORD_CREATE_DATE` datetime DEFAULT NULL,
	`A_RECORD_CREATE_AUTHOR` varchar(20) NOT NULL DEFAULT '',
	`A_RECORD_UPDATE_DATE` datetime DEFAULT NULL,
	`A_RECORD_UPDATE_AUTHOR` varchar(20) NOT NULL DEFAULT '',
	`A_ADM_COMPANY` varchar(100) NOT NULL DEFAULT '',
	`A_CLASSIFIED` varchar(100) NOT NULL DEFAULT '',
	`A_USER_IP` bigint NOT NULL DEFAULT '0',
	PRIMARY KEY (`ID`),
	KEY `FILE_TYPE` (`FILE_TYPE`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin2;
			");
			DB::getPDO()->exec("
CREATE TABLE IF NOT EXISTS `CRM_FILES__#VERSIONS` (
	`ID_FILE` int(11) NOT NULL,
	`FILE_HASH` varchar(255) NOT NULL, -- generated from ID by hash function - only for cache
  `FILE_LABEL` varchar(255) NOT NULL, -- original file name or system name
  `FILE_TYPE` varchar(32) NOT NULL DEFAULT '', -- $TRG_FILE -> config/.cnf--folders...
	`FILE_MIME_TYPE` varchar(64) NOT NULL DEFAULT '',
	`FILE_MTIME` datetime NOT NULL,
	`FILE_SIZE` bigint NOT NULL DEFAULT 0,
	`FILE_VERSION` int(11) NOT NULL DEFAULT 0, -- used for update
	`A_RECORD_CREATE_DATE` datetime DEFAULT NULL,
	`A_RECORD_CREATE_AUTHOR` varchar(20) NOT NULL DEFAULT '',
	`A_USER_IP` bigint NOT NULL DEFAULT '0',
	KEY `ID_FILE` (`ID_FILE`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin2;
			");
			DB::getPDO()->exec("
CREATE TABLE IF NOT EXISTS `CRM_FILES__#DEV__#VERSIONS` (
	`ID_FILE` int(11) NOT NULL,
	`FILE_HASH` varchar(255) NOT NULL, -- generated from ID by hash function - only for cache
  `FILE_LABEL` varchar(255) NOT NULL, -- original file name or system name
  `FILE_TYPE` varchar(32) NOT NULL DEFAULT '', -- $TRG_FILE -> config/.cnf--folders...
	`FILE_MIME_TYPE` varchar(64) NOT NULL DEFAULT '',
	`FILE_MTIME` datetime NOT NULL,
	`FILE_SIZE` bigint NOT NULL DEFAULT 0,
	`FILE_VERSION` int(11) NOT NULL DEFAULT 0, -- used for update
	`A_RECORD_CREATE_DATE` datetime DEFAULT NULL,
	`A_RECORD_CREATE_AUTHOR` varchar(20) NOT NULL DEFAULT '',
	`A_USER_IP` bigint NOT NULL DEFAULT '0',
	KEY `ID_FILE` (`ID_FILE`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin2;
			");

			{// TODO: only in cli mode - require root perms
				$devRootPath = '/tmp/test-upload-file-storage';
				if (!file_exists($devRootPath)) {
					@mkdir($devRootPath, $mode = 0777, $recursive = true);
					if (!file_exists($devRootPath)) throw new Exception("Cannot create FileStorage root path for dev");
					@chmod($devRootPath, $mode = 0777);
					@chown($devRootPath, $user = '_www');
				}

				$productionRootPath = '/Library/Server/Web/Data/p5-file-storage';
				if (!file_exists($productionRootPath)) {
					@mkdir($productionRootPath, $mode = 0775, $recursive = true);
					if (!file_exists($productionRootPath)) throw new Exception("Cannot create FileStorage root path");
					@chmod($productionRootPath, $mode = 0775);
					@chown($productionRootPath, $user = '_www');
				}
			}
		} catch (Exception $e) {
			UI::alert('danger', $e->getMessage());
		}
	}

	public static function isAllowedMimeType($mimeType) {
		// http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
		switch ($mimeType) {
			case 'image/png': return true;
			case 'application/atom+xml': return true;// atom
			case 'application/atomcat+xml': return true;// atomcat
			case 'application/atomsvc+xml': return true;// atomsvc
			case 'application/ccxml+xml': return true;// ccxml
			case 'application/cdmi-capability': return true;// cdmia
			case 'application/cdmi-container': return true;// cdmic
			case 'application/cdmi-domain': return true;// cdmid
			case 'application/cdmi-object': return true;// cdmio
			case 'application/cdmi-queue': return true;// cdmiq
			case 'application/cu-seeme': return true;// cu
			case 'application/davmount+xml': return true;// davmount
			case 'application/docbook+xml': return true;// dbk
			case 'application/dssc+der': return true;// dssc
			case 'application/dssc+xml': return true;// xdssc
			case 'application/ecmascript': return true;// ecma
			case 'application/emma+xml': return true;// emma
			case 'application/epub+zip': return true;// epub
			case 'application/exi': return true;// exi
			case 'application/font-tdpfr': return true;// pfr
			case 'application/font-woff': return true;// woff
			case 'application/gml+xml': return true;// gml
			case 'application/gpx+xml': return true;// gpx
			case 'application/gxf': return true;// gxf
			case 'application/hyperstudio': return true;// stk
			case 'application/inkml+xml': return true;// ink inkml
			case 'application/ipfix': return true;// ipfix
			case 'application/java-archive': return true;// jar
			case 'application/java-serialized-object': return true;// ser
			case 'application/java-vm': return true;// class
			case 'application/javascript': return true;// js
			case 'application/json': return true;// json
			case 'application/jsonml+json': return true;// jsonml
			case 'application/lost+xml': return true;// lostxml
			case 'application/mac-binhex40': return true;// hqx
			case 'application/mac-compactpro': return true;// cpt
			case 'application/mads+xml': return true;// mads
			case 'application/marc': return true;// mrc
			case 'application/marcxml+xml': return true;// mrcx
			case 'application/mathematica': return true;// ma nb mb
			case 'application/mathml+xml': return true;// mathml
			case 'application/mbox': return true;// mbox
			case 'application/mediaservercontrol+xml': return true;// mscml
			case 'application/metalink+xml': return true;// metalink
			case 'application/metalink4+xml': return true;// meta4
			case 'application/mets+xml': return true;// mets
			case 'application/mods+xml': return true;// mods
			case 'application/mp21': return true;// m21 mp21
			case 'application/mp4': return true;// mp4s
			case 'application/msword': return true;// doc dot
			case 'application/mxf': return true;// mxf
			case 'application/octet-stream': return true;// bin dms lrf mar so dist distz pkg bpk dump elc deploy
			case 'application/oda': return true;// oda
			case 'application/oebps-package+xml': return true;// opf
			case 'application/ogg': return true;// ogx
			case 'application/omdoc+xml': return true;// omdoc
			case 'application/onenote': return true;// onetoc2 onetmp onetoc onepkg
			case 'application/oxps': return true;// oxps
			case 'application/patch-ops-error+xml': return true;// xer
			case 'application/pdf': return true;// pdf
			case 'application/pgp-encrypted': return true;// pgp
			case 'application/pgp-signature': return true;// asc sig
			case 'application/pics-rules': return true;// prf
			case 'application/pkcs10': return true;// p10
			case 'application/pkcs7-mime': return true;// p7m p7c
			case 'application/pkcs7-signature': return true;// p7s
			case 'application/pkcs8': return true;// p8
			case 'application/pkix-attr-cert': return true;// ac
			case 'application/pkix-cert': return true;// cer
			case 'application/pkix-crl': return true;// crl
			case 'application/pkix-pkipath': return true;// pkipath
			case 'application/pkixcmp': return true;// pki
			case 'application/pls+xml': return true;// pls
			case 'application/postscript': return true;// ai eps ps
			case 'application/prs.cww': return true;// cww
			case 'application/pskc+xml': return true;// pskcxml
			case 'application/rdf+xml': return true;// rdf
			case 'application/reginfo+xml': return true;// rif
			case 'application/relax-ng-compact-syntax': return true;// rnc
			case 'application/resource-lists+xml': return true;// rl
			case 'application/resource-lists-diff+xml': return true;// rld
			case 'application/rls-services+xml': return true;// rs
			case 'application/rpki-ghostbusters': return true;// gbr
			case 'application/rpki-manifest': return true;// mft
			case 'application/rpki-roa': return true;// roa
			case 'application/rsd+xml': return true;// rsd
			case 'application/rss+xml': return true;// rss
			case 'application/rtf': return true;// rtf
			case 'application/sbml+xml': return true;// sbml
			case 'application/scvp-cv-request': return true;// scq
			case 'application/scvp-cv-response': return true;// scs
			case 'application/scvp-vp-request': return true;// spq
			case 'application/scvp-vp-response': return true;// spp
			case 'application/sdp': return true;// sdp
			case 'application/set-payment-initiation': return true;// setpay
			case 'application/set-registration-initiation': return true;// setreg
			case 'application/shf+xml': return true;// shf
			case 'application/smil+xml': return true;// smi smil
			case 'application/sparql-query': return true;// rq
			case 'application/sparql-results+xml': return true;// srx
			case 'application/srgs': return true;// gram
			case 'application/srgs+xml': return true;// grxml
			case 'application/sru+xml': return true;// sru
			case 'application/ssdl+xml': return true;// ssdl
			case 'application/ssml+xml': return true;// ssml
			case 'application/tei+xml': return true;// tei teicorpus
			case 'application/thraud+xml': return true;// tfi
			case 'application/timestamped-data': return true;// tsd
			case 'application/vnd.3gpp.pic-bw-large': return true;// plb
			case 'application/vnd.3gpp.pic-bw-small': return true;// psb
			case 'application/vnd.3gpp.pic-bw-var': return true;// pvb
			case 'application/vnd.3gpp2.tcap': return true;// tcap
			case 'application/vnd.3m.post-it-notes': return true;// pwn
			case 'application/vnd.accpac.simply.aso': return true;// aso
			case 'application/vnd.accpac.simply.imp': return true;// imp
			case 'application/vnd.acucobol': return true;// acu
			case 'application/vnd.acucorp': return true;// atc acutc
			case 'application/vnd.adobe.air-application-installer-package+zip': return true;// air
			case 'application/vnd.adobe.formscentral.fcdt': return true;// fcdt
			case 'application/vnd.adobe.fxp': return true;// fxp fxpl
			case 'application/vnd.adobe.xdp+xml': return true;// xdp
			case 'application/vnd.adobe.xfdf': return true;// xfdf
			case 'application/vnd.ahead.space': return true;// ahead
			case 'application/vnd.airzip.filesecure.azf': return true;// azf
			case 'application/vnd.airzip.filesecure.azs': return true;// azs
			case 'application/vnd.amazon.ebook': return true;// azw
			case 'application/vnd.americandynamics.acc': return true;// acc
			case 'application/vnd.amiga.ami': return true;// ami
			case 'application/vnd.android.package-archive': return true;// apk
			case 'application/vnd.anser-web-certificate-issue-initiation': return true;// cii
			case 'application/vnd.anser-web-funds-transfer-initiation': return true;// fti
			case 'application/vnd.antix.game-component': return true;// atx
			case 'application/vnd.apple.installer+xml': return true;// mpkg
			case 'application/vnd.apple.mpegurl': return true;// m3u8
			case 'application/vnd.aristanetworks.swi': return true;// swi
			case 'application/vnd.astraea-software.iota': return true;// iota
			case 'application/vnd.audiograph': return true;// aep
			case 'application/vnd.blueice.multipass': return true;// mpm
			case 'application/vnd.bmi': return true;// bmi
			case 'application/vnd.businessobjects': return true;// rep
			case 'application/vnd.chemdraw+xml': return true;// cdxml
			case 'application/vnd.chipnuts.karaoke-mmd': return true;// mmd
			case 'application/vnd.cinderella': return true;// cdy
			case 'application/vnd.claymore': return true;// cla
			case 'application/vnd.cloanto.rp9': return true;// rp9
			case 'application/vnd.clonk.c4group': return true;// c4g c4d c4f c4p c4u
			case 'application/vnd.cluetrust.cartomobile-config': return true;// c11amc
			case 'application/vnd.cluetrust.cartomobile-config-pkg': return true;// c11amz
			case 'application/vnd.commonspace': return true;// csp
			case 'application/vnd.contact.cmsg': return true;// cdbcmsg
			case 'application/vnd.cosmocaller': return true;// cmc
			case 'application/vnd.crick.clicker': return true;// clkx
			case 'application/vnd.crick.clicker.keyboard': return true;// clkk
			case 'application/vnd.crick.clicker.palette': return true;// clkp
			case 'application/vnd.crick.clicker.template': return true;// clkt
			case 'application/vnd.crick.clicker.wordbank': return true;// clkw
			case 'application/vnd.criticaltools.wbs+xml': return true;// wbs
			case 'application/vnd.ctc-posml': return true;// pml
			case 'application/vnd.cups-ppd': return true;// ppd
			case 'application/vnd.curl.car': return true;// car
			case 'application/vnd.curl.pcurl': return true;// pcurl
			case 'application/vnd.dart': return true;// dart
			case 'application/vnd.data-vision.rdz': return true;// rdz
			case 'application/vnd.dece.data': return true;// uvf uvvf uvd uvvd
			case 'application/vnd.dece.ttml+xml': return true;// uvt uvvt
			case 'application/vnd.dece.unspecified': return true;// uvx uvvx
			case 'application/vnd.dece.zip': return true;// uvz uvvz
			case 'application/vnd.denovo.fcselayout-link': return true;// fe_launch
			case 'application/vnd.dna': return true;// dna
			case 'application/vnd.dolby.mlp': return true;// mlp
			case 'application/vnd.dpgraph': return true;// dpg
			case 'application/vnd.dreamfactory': return true;// dfac
			case 'application/vnd.ds-keypoint': return true;// kpxx
			case 'application/vnd.dvb.ait': return true;// ait
			case 'application/vnd.dvb.service': return true;// svc
			case 'application/vnd.dynageo': return true;// geo
			case 'application/vnd.ecowin.chart': return true;// mag
			case 'application/vnd.enliven': return true;// nml
			case 'application/vnd.epson.esf': return true;// esf
			case 'application/vnd.epson.msf': return true;// msf
			case 'application/vnd.epson.quickanime': return true;// qam
			case 'application/vnd.epson.salt': return true;// slt
			case 'application/vnd.epson.ssf': return true;// ssf
			case 'application/vnd.eszigno3+xml			es3': return true;// et3
			case 'application/vnd.ezpix-album': return true;// ez2
			case 'application/vnd.ezpix-package': return true;// ez3
			case 'application/vnd.fdf': return true;// fdf
			case 'application/vnd.fdsn.mseed': return true;// mseed
			case 'application/vnd.fdsn.seed': return true;// seed dataless
			case 'application/vnd.flographit': return true;// gph
			case 'application/vnd.fluxtime.clip': return true;// ftc
			case 'application/vnd.framemaker': return true;// fm frame maker book
			case 'application/vnd.frogans.fnc': return true;// fnc
			case 'application/vnd.frogans.ltf': return true;// ltf
			case 'application/vnd.fsc.weblaunch': return true;// fsc
			case 'application/vnd.fujitsu.oasys': return true;// oas
			case 'application/vnd.fujitsu.oasys2': return true;// oa2
			case 'application/vnd.fujitsu.oasys3': return true;// oa3
			case 'application/vnd.fujitsu.oasysgp': return true;// fg5
			case 'application/vnd.fujitsu.oasysprs': return true;// bh2
			case 'application/vnd.fujixerox.ddd': return true;// ddd
			case 'application/vnd.fujixerox.docuworks': return true;// xdw
			case 'application/vnd.fujixerox.docuworks.binder': return true;// xbd
			case 'application/vnd.fuzzysheet': return true;// fzs
			case 'application/vnd.genomatix.tuxedo': return true;// txd
			case 'application/vnd.geogebra.file': return true;// ggb
			case 'application/vnd.geogebra.tool': return true;// ggt
			case 'application/vnd.geometry-explorer': return true;// gex gre
			case 'application/vnd.geonext': return true;// gxt
			case 'application/vnd.geoplan': return true;// g2w
			case 'application/vnd.geospace': return true;// g3w
			case 'application/vnd.gmx': return true;// gmx
			case 'application/vnd.google-earth.kml+xml': return true;// kml
			case 'application/vnd.google-earth.kmz': return true;// kmz
			case 'application/vnd.grafeq': return true;// gqf gqs
			case 'application/vnd.groove-account': return true;// gac
			case 'application/vnd.groove-help': return true;// ghf
			case 'application/vnd.groove-identity-message': return true;// gim
			case 'application/vnd.groove-injector': return true;// grv
			case 'application/vnd.groove-tool-message': return true;// gtm
			case 'application/vnd.groove-tool-template': return true;// tpl
			case 'application/vnd.groove-vcard': return true;// vcg
			case 'application/vnd.hal+xml': return true;// hal
			case 'application/vnd.handheld-entertainment+xml': return true;// zmm
			case 'application/vnd.hbci': return true;// hbci
			case 'application/vnd.hhe.lesson-player': return true;// les
			case 'application/vnd.hp-hpgl': return true;// hpgl
			case 'application/vnd.hp-hpid': return true;// hpid
			case 'application/vnd.hp-hps': return true;// hps
			case 'application/vnd.hp-jlyt': return true;// jlt
			case 'application/vnd.hp-pcl': return true;// pcl
			case 'application/vnd.hp-pclxl': return true;// pclxl
			case 'application/vnd.hydrostatix.sof-data': return true;// sfd- hdstx
			case 'application/vnd.ibm.minipay': return true;// mpy
			case 'application/vnd.ibm.modcap': return true;// afp listafp list3820
			case 'application/vnd.ibm.rights-management': return true;// irm
			case 'application/vnd.ibm.secure-container': return true;// sc
			case 'application/vnd.iccprofile': return true;// icc icm
			case 'application/vnd.igloader': return true;// igl
			case 'application/vnd.immervision-ivp': return true;// ivp
			case 'application/vnd.immervision-ivu': return true;// ivu
			case 'application/vnd.insors.igm': return true;// igm
			case 'application/vnd.intercon.formnet': return true;// xpw xpx
			case 'application/vnd.intergeo': return true;// i2g
			case 'application/vnd.intu.qbo': return true;// qbo
			case 'application/vnd.intu.qfx': return true;// qfx
			case 'application/vnd.ipunplugged.rcprofile': return true;// rcprofile
			case 'application/vnd.irepository.package+xml': return true;// irp
			case 'application/vnd.is-xpr': return true;// xpr
			case 'application/vnd.isac.fcs': return true;// fcs
			case 'application/vnd.jam': return true;// jam
			case 'application/vnd.jcp.javame.midlet-rms': return true;// rms
			case 'application/vnd.jisp': return true;// jisp
			case 'application/vnd.joost.joda-archive': return true;// joda
			case 'application/vnd.kahootz': return true;// ktz ktr
			case 'application/vnd.kde.karbon': return true;// karbon
			case 'application/vnd.kde.kchart': return true;// chrt
			case 'application/vnd.kde.kformula': return true;// kfo
			case 'application/vnd.kde.kivio': return true;// flw
			case 'application/vnd.kde.kontour': return true;// kon
			case 'application/vnd.kde.kpresenter': return true;// kpr kpt
			case 'application/vnd.kde.kspread': return true;// ksp
			case 'application/vnd.kde.kword': return true;// kwd kwt
			case 'application/vnd.kenameaapp': return true;// htke
			case 'application/vnd.kidspiration': return true;// kia
			case 'application/vnd.kinar': return true;// kne knp
			case 'application/vnd.koan': return true;// skp skd skt skm
			case 'application/vnd.kodak-descriptor': return true;// sse
			case 'application/vnd.las.las+xml': return true;// lasxml
			case 'application/vnd.llamagraphics.life-balance.desktop': return true;// lbd
			case 'application/vnd.llamagraphics.life-balance.exchange+xml': return true;// lbe
			case 'application/vnd.lotus-1-2-3': return true;// 123
			case 'application/vnd.lotus-approach': return true;// apr
			case 'application/vnd.lotus-freelance': return true;// pre
			case 'application/vnd.lotus-notes': return true;// nsf
			case 'application/vnd.lotus-organizer': return true;// org
			case 'application/vnd.lotus-screencam': return true;// scm
			case 'application/vnd.lotus-wordpro': return true;// lwp
			case 'application/vnd.macports.portpkg': return true;// portpkg
			case 'application/vnd.mcd': return true;// mcd
			case 'application/vnd.medcalcdata': return true;// mc1
			case 'application/vnd.mediastation.cdkey': return true;// cdkey
			case 'application/vnd.mfer': return true;// mwf
			case 'application/vnd.mfmp': return true;// mfm
			case 'application/vnd.micrografx.flo': return true;// flo
			case 'application/vnd.micrografx.igx': return true;// igx
			case 'application/vnd.mif': return true;// mif
			case 'application/vnd.mobius.daf': return true;// daf
			case 'application/vnd.mobius.dis': return true;// dis
			case 'application/vnd.mobius.mbk': return true;// mbk
			case 'application/vnd.mobius.mqy': return true;// mqy
			case 'application/vnd.mobius.msl': return true;// msl
			case 'application/vnd.mobius.plc': return true;// plc
			case 'application/vnd.mobius.txf': return true;// txf
			case 'application/vnd.mophun.application': return true;// mpn
			case 'application/vnd.mophun.certificate': return true;// mpc
			case 'application/vnd.mozilla.xul+xml': return true;// xul
			case 'application/vnd.ms-artgalry': return true;// cil
			case 'application/vnd.ms-cab-compressed': return true;// cab
			case 'application/vnd.ms-excel': return true;// xls xlm xla xlc xlt xlw
			case 'application/vnd.ms-excel.addin.macroenabled.12': return true;// xlam
			case 'application/vnd.ms-excel.sheet.binary.macroenabled.12': return true;// xlsb
			case 'application/vnd.ms-excel.sheet.macroenabled.12': return true;// xlsm
			case 'application/vnd.ms-excel.template.macroenabled.12': return true;// xltm
			case 'application/vnd.ms-fontobject': return true;// eot
			case 'application/vnd.ms-htmlhelp': return true;// chm
			case 'application/vnd.ms-ims': return true;// ims
			case 'application/vnd.ms-lrm': return true;// lrm
			case 'application/vnd.ms-office': return true;// theme thmx
			case 'application/vnd.ms-pki.seccat': return true;// cat
			case 'application/vnd.ms-pki.stl': return true;// stl
			case 'application/vnd.ms-powerpoint': return true;// ppt pps pot
			case 'application/vnd.ms-powerpoint.addin.macroenabled.12': return true;// ppam
			case 'application/vnd.ms-powerpoint.presentation.macroenabled.12': return true;// pptm
			case 'application/vnd.ms-powerpoint.slide.macroenabled.12': return true;// sldm
			case 'application/vnd.ms-powerpoint.slideshow.macroenabled.12': return true;// ppsm
			case 'application/vnd.ms-powerpoint.template.macroenabled.12': return true;// potm
			case 'application/vnd.ms-project': return true;// mpp mpt
			case 'application/vnd.ms-word.document.macroenabled.12': return true;// docm
			case 'application/vnd.ms-word.template.macroenabled.12': return true;// dotm
			case 'application/vnd.ms-works': return true;// wps wks wcm wdb
			case 'application/vnd.ms-wpl': return true;// wpl
			case 'application/vnd.ms-xpsdocument': return true;// xps
			case 'application/vnd.mseq': return true;// mseq
			case 'application/vnd.musician': return true;// mus
			case 'application/vnd.muvee.style': return true;// msty
			case 'application/vnd.mynfc': return true;// taglet
			case 'application/vnd.neurolanguage.nlu': return true;// nlu
			case 'application/vnd.nitf': return true;// ntf nitf
			case 'application/vnd.noblenet-directory': return true;// nnd
			case 'application/vnd.noblenet-sealer': return true;// nns
			case 'application/vnd.noblenet-web': return true;// nnw
			case 'application/vnd.nokia.n-gage.data': return true;// ngdat
			case 'application/vnd.nokia.n-gage.symbian.install': return true;// n- gage
			case 'application/vnd.nokia.radio-preset': return true;// rpst
			case 'application/vnd.nokia.radio-presets': return true;// rpss
			case 'application/vnd.novadigm.edm': return true;// edm
			case 'application/vnd.novadigm.edx': return true;// edx
			case 'application/vnd.novadigm.ext': return true;// ext
			case 'application/vnd.oasis.opendocument.chart': return true;// odc
			case 'application/vnd.oasis.opendocument.chart-template': return true;// otc
			case 'application/vnd.oasis.opendocument.database': return true;// odb
			case 'application/vnd.oasis.opendocument.formula': return true;// odf
			case 'application/vnd.oasis.opendocument.formula-template': return true;// odft
			case 'application/vnd.oasis.opendocument.graphics': return true;// odg
			case 'application/vnd.oasis.opendocument.graphics-template': return true;// otg
			case 'application/vnd.oasis.opendocument.image': return true;// odi
			case 'application/vnd.oasis.opendocument.image-template': return true;// oti
			case 'application/vnd.oasis.opendocument.presentation': return true;// odp
			case 'application/vnd.oasis.opendocument.presentation-template': return true;// otp
			case 'application/vnd.oasis.opendocument.spreadsheet': return true;// ods
			case 'application/vnd.oasis.opendocument.spreadsheet-template': return true;// ots
			case 'application/vnd.oasis.opendocument.text': return true;// odt
			case 'application/vnd.oasis.opendocument.text-master': return true;// odm
			case 'application/vnd.oasis.opendocument.text-template': return true;// ott
			case 'application/vnd.oasis.opendocument.text-web': return true;// oth
			case 'application/vnd.olpc-sugar': return true;// xo
			case 'application/vnd.oma.dd2+xml': return true;// dd2
			case 'application/vnd.openofficeorg.extension': return true;// oxt
			case 'application/vnd.openxmlformats-officedocument.presentationml.presentation': return true;// pptx
			case 'application/vnd.openxmlformats-officedocument.presentationml.slide': return true;// sldx
			case 'application/vnd.openxmlformats-officedocument.presentationml.slideshow': return true;// ppsx
			case 'application/vnd.openxmlformats-officedocument.presentationml.template': return true;// potx
			case 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': return true;// xlsx
			case 'application/vnd.openxmlformats-officedocument.spreadsheetml.template': return true;// xltx
			case 'application/vnd.openxmlformats-officedocument.wordprocessingml.document': return true;// docx
			case 'application/vnd.openxmlformats-officedocument.wordprocessingml.template': return true;// dotx
			case 'application/vnd.osgeo.mapguide.package': return true;// mgp
			case 'application/vnd.osgi.dp': return true;// dp
			case 'application/vnd.osgi.subsystem': return true;// esa
			case 'application/vnd.palm': return true;// pdb pqa oprc
			case 'application/vnd.pawaafile': return true;// paw
			case 'application/vnd.pg.format': return true;// str
			case 'application/vnd.pg.osasli': return true;// ei6
			case 'application/vnd.picsel': return true;// efif
			case 'application/vnd.pmi.widget': return true;// wg
			case 'application/vnd.pocketlearn': return true;// plf
			case 'application/vnd.powerbuilder6': return true;// pbd
			case 'application/vnd.previewsystems.box': return true;// box
			case 'application/vnd.proteus.magazine': return true;// mgz
			case 'application/vnd.publishare-delta-tree': return true;// qps
			case 'application/vnd.pvi.ptid1': return true;// ptid
			case 'application/vnd.quark.quarkxpress': return true;// qxd qxt qwd qwt qxl qxb
			case 'application/vnd.realvnc.bed': return true;// bed
			case 'application/vnd.recordare.musicxml': return true;// mxl
			case 'application/vnd.recordare.musicxml+xml': return true;// musicxml
			case 'application/vnd.rig.cryptonote': return true;// cryptonote
			case 'application/vnd.rim.cod': return true;// cod
			case 'application/vnd.rn-realmedia': return true;// rm
			case 'application/vnd.rn-realmedia-vbr': return true;// rmvb
			case 'application/vnd.route66.link66+xml': return true;// link66
			case 'application/vnd.sailingtracker.track': return true;// st
			case 'application/vnd.seemail': return true;// see
			case 'application/vnd.sema': return true;// sema
			case 'application/vnd.semd': return true;// semd
			case 'application/vnd.semf': return true;// semf
			case 'application/vnd.shana.informed.formdata': return true;// ifm
			case 'application/vnd.shana.informed.formtemplate': return true;// itp
			case 'application/vnd.shana.informed.interchange': return true;// iif
			case 'application/vnd.shana.informed.package': return true;// ipk
			case 'application/vnd.simtech-mindmapper': return true;// twd twds
			case 'application/vnd.smaf': return true;// mmf
			case 'application/vnd.smart.teacher': return true;// teacher
			case 'application/vnd.solent.sdkm+xml': return true;// sdkm sdkd
			case 'application/vnd.spotfire.dxp': return true;// dxp
			case 'application/vnd.spotfire.sfs': return true;// sfs
			case 'application/vnd.stardivision.calc': return true;// sdc
			case 'application/vnd.stardivision.draw': return true;// sda
			case 'application/vnd.stardivision.impress': return true;// sdd
			case 'application/vnd.stardivision.math': return true;// smf
			case 'application/vnd.stardivision.writer': return true;// sdw vor
			case 'application/vnd.stardivision.writer-global': return true;// sgl
			case 'application/vnd.stepmania.package': return true;// smzip
			case 'application/vnd.stepmania.stepchart': return true;// sm
			case 'application/vnd.sun.xml.calc': return true;// sxc
			case 'application/vnd.sun.xml.calc.template': return true;// stc
			case 'application/vnd.sun.xml.draw': return true;// sxd
			case 'application/vnd.sun.xml.draw.template': return true;// std
			case 'application/vnd.sun.xml.impress': return true;// sxi
			case 'application/vnd.sun.xml.impress.template': return true;// sti
			case 'application/vnd.sun.xml.math': return true;// sxm
			case 'application/vnd.sun.xml.writer': return true;// sxw
			case 'application/vnd.sun.xml.writer.global': return true;// sxg
			case 'application/vnd.sun.xml.writer.template': return true;// stw
			case 'application/vnd.sus-calendar': return true;// sus susp
			case 'application/vnd.svd': return true;// svd
			case 'application/vnd.symbian.install			sis': return true;// sisx
			case 'application/vnd.syncml+xml': return true;// xsm
			case 'application/vnd.syncml.dm+wbxml': return true;// bdm
			case 'application/vnd.syncml.dm+xml': return true;// xdm
			case 'application/vnd.tao.intent-module-archive': return true;// tao
			case 'application/vnd.tcpdump.pcap': return true;// pcap cap dmp
			case 'application/vnd.tmobile-livetv': return true;// tmo
			case 'application/vnd.trid.tpt': return true;// tpt
			case 'application/vnd.triscape.mxs': return true;// mxs
			case 'application/vnd.trueapp': return true;// tra
			case 'application/vnd.ufdl': return true;// ufd ufdl
			case 'application/vnd.uiq.theme': return true;// utz
			case 'application/vnd.umajin': return true;// umj
			case 'application/vnd.unity': return true;// unityweb
			case 'application/vnd.uoml+xml': return true;// uoml
			case 'application/vnd.vcx': return true;// vcx
			case 'application/vnd.visio': return true;// vsd vst vss vsw
			case 'application/vnd.visionary': return true;// vis
			case 'application/vnd.vsf': return true;// vsf
			case 'application/vnd.wap.wbxml': return true;// wbxml
			case 'application/vnd.wap.wmlc': return true;// wmlc
			case 'application/vnd.wap.wmlscriptc': return true;// wmlsc
			case 'application/vnd.webturbo': return true;// wtb
			case 'application/vnd.wolfram.player': return true;// nbp
			case 'application/vnd.wordperfect': return true;// wpd
			case 'application/vnd.wqd': return true;// wqd
			case 'application/vnd.wt.stf': return true;// stf
			case 'application/vnd.xara': return true;// xar
			case 'application/vnd.xfdl': return true;// xfdl
			case 'application/vnd.yamaha.hv-dic': return true;// hvd
			case 'application/vnd.yamaha.hv-script': return true;// hvs
			case 'application/vnd.yamaha.hv-voice': return true;// hvp
			case 'application/vnd.yamaha.openscoreformat': return true;// osf
			case 'application/vnd.yamaha.openscoreformat.osfpvg+xml': return true;// osfpvg
			case 'application/vnd.yamaha.smaf-audio': return true;// saf
			case 'application/vnd.yamaha.smaf-phrase': return true;// spf
			case 'application/vnd.yellowriver-custom-menu': return true;// cmp
			case 'application/vnd.zul': return true;// zir zirz
			case 'application/vnd.zzazz.deck+xml': return true;// zaz
			case 'application/voicexml+xml': return true;// vxml
			case 'application/widget': return true;// wgt
			case 'application/winhlp': return true;// hlp
			case 'application/wsdl+xml': return true;// wsdl
			case 'application/wspolicy+xml': return true;// wspolicy
			case 'application/x-7z-compressed': return true;// 7z
			case 'application/x-abiword': return true;// abw
			case 'application/x-ace-compressed': return true;// ace
			case 'application/x-apple-diskimage': return true;// dmg
			case 'application/x-authorware-bin': return true;// aab x32 u32 vox
			case 'application/x-authorware-map': return true;// aam
			case 'application/x-authorware-seg': return true;// aas
			case 'application/x-archive': return true;// ADMIN_USERS//5027.Pawel_Kamola/projekty/grafy_projekt_python/grafy/numpy/core/lib/libnpymath.a
			case 'application/x-empty': return false;// empty files
			case 'application/x-bcpio': return true;// bcpio
			case 'application/x-bittorrent': return true;// torrent
			case 'application/x-blorb': return true;// blb blorb
			case 'application/x-bzip': return true;// bz
			case 'application/x-bzip2': return true;// bz2 boz
			case 'application/x-cbr': return true;// cbr cba cbt cbz cb7
			case 'application/x-cdlink': return true;// vcd
			case 'application/x-cfs-compressed': return true;// cfs
			case 'application/x-chat': return true;// chat
			case 'application/x-chess-pgn': return true;// pgn
			case 'application/x-conference': return true;// nsc
			case 'application/x-cpio': return true;// cpio
			case 'application/x-csh': return true;// csh
			case 'application/x-debian-package': return true;// deb udeb
			case 'application/x-dgc-compressed': return true;// dgc
			case 'application/x-director': return true;// dir dcr dxr cst cct cxt w3d fgd swa
			case 'application/x-doom': return true;// wad
			case 'application/x-dtbncx+xml': return true;// ncx
			case 'application/x-dtbook+xml': return true;// dtb
			case 'application/x-dtbresource+xml': return true;// res
			case 'application/x-dvi': return true;// dvi
			case 'application/x-envoy': return true;// evy
			case 'application/x-eva': return true;// eva
			case 'application/x-font-bdf': return true;// bdf
			case 'application/x-font-ghostscript': return true;// gsf
			case 'application/x-font-linux-psf': return true;// psf
			case 'application/x-font-otf': return true;// otf
			case 'application/x-font-pcf': return true;// pcf
			case 'application/x-font-snf': return true;// snf
			case 'application/x-font-ttf': return true;// ttc ttf
			case 'application/x-font-type1': return true;// afm pfa pfb pfm
			case 'application/x-freearc': return true;// arc
			case 'application/x-futuresplash': return true;// spl
			case 'application/x-executable': return true;//
			case 'application/x-gca-compressed': return true;// gca
			case 'application/x-glulx': return true;// ulx
			case 'application/x-gnumeric': return true;// gnumeric
			case 'application/x-gramps-xml': return true;// gramps
			case 'application/x-gtar': return true;// gtar
			case 'application/x-gzip': return true;// gz gzip
			case 'application/x-hdf': return true;// hdf
			case 'application/x-install-instructions': return true;// install
			case 'application/x-iso9660-image': return true;// iso
			case 'application/x-java-jnlp-file': return true;// jnlp
			case 'application/x-latex': return true;// latex
			case 'application/x-lzh-compressed': return true;// lha lzh
			case 'application/x-mie': return true;// mie
			case 'application/x-mobipocket-ebook': return true;// mobi prc
			case 'application/x-ms-application': return true;// application
			case 'application/x-ms-shortcut': return true;// lnk
			case 'application/x-ms-wmd': return true;// wmd
			case 'application/x-ms-wmz': return true;// wmz
			case 'application/x-ms-xbap': return true;// xbap
			case 'application/x-msaccess': return true;// mdb
			case 'application/x-msbinder': return true;// obd
			case 'application/x-mscardfile': return true;// crd
			case 'application/x-msclip': return true;// clp
			case 'application/x-msdownload': return true;// msi exe dll com bat
			case 'application/x-msmediaview': return true;// m14 mvb m13
			case 'application/x-msmetafile': return true;// emz wmf wmz emf
			case 'application/x-msmoney': return true;// mny
			case 'application/x-mspublisher': return true;// pub
			case 'application/x-msschedule': return true;// scd
			case 'application/x-msterminal': return true;// trm
			case 'application/x-mswrite': return true;// wri
			case 'application/x-netcdf': return true;// cdf nc
			case 'application/x-nzb': return true;// nzb
			case 'application/x-pkcs12': return true;// pfx p12
			case 'application/x-pkcs7-certificates': return true;// spc p7b
			case 'application/x-pkcs7-certreqresp': return true;// p7r
			case 'application/x-rar': return true;// rar
			case 'application/x-rar-compressed': return true;// rar
			case 'application/x-research-info-systems': return true;// ris
			case 'application/x-sh': return true;// sh
			case 'application/x-shar': return true;// shar
			case 'application/x-shockwave-flash': return true;// swf
			case 'application/x-silverlight-app': return true;// xap
			case 'application/x-sql': return true;// sql
			case 'application/x-stuffit': return true;// sit
			case 'application/x-stuffitx': return true;// sitx
			case 'application/x-subrip': return true;// srt
			case 'application/x-sv4cpio': return true;// sv4cpio
			case 'application/x-sv4crc': return true;// sv4crc
			case 'application/x-t3vm-image': return true;// t3
			case 'application/x-tads': return true;// gam
			case 'application/x-tar': return true;// tar
			case 'application/x-tcl': return true;// tcl
			case 'application/x-tex': return true;// tex
			case 'application/x-tex-tfm': return true;// tfm
			case 'application/x-texinfo': return true;// texi texinfo
			case 'application/x-tgif': return true;// obj
			case 'application/x-ustar': return true;// ustar
			case 'application/x-wais-source': return true;// src
			case 'application/x-x509-ca-cert': return true;// crt der
			case 'application/x-xfig': return true;// fig
			case 'application/x-xliff+xml': return true;// xlf
			case 'application/x-xpinstall': return true;// xpi
			case 'application/x-xz': return true;// xz
			case 'application/x-zmachine': return true;// z8 z1 z2 z3 z4 z5 z6 z7
			case 'application/xaml+xml': return true;// xaml
			case 'application/xcap-diff+xml': return true;// xdf
			case 'application/xenc+xml': return true;// xenc
			case 'application/xhtml+xml': return true;// xht xhtml
			case 'application/xml': return true;// xsl xml
			case 'application/xml-dtd': return true;// dtd
			case 'application/xop+xml': return true;// xop
			case 'application/xproc+xml': return true;// xpl
			case 'application/xslt+xml': return true;// xslt
			case 'application/xspf+xml': return true;// xspf
			case 'application/xv+xml': return true;// xvm mxml xhvml xvml
			case 'application/yang': return true;// yang
			case 'application/yin+xml': return true;// yin
			case 'application/zip': return true;// zip
			case 'audio/adpcm': return true;// adp
			case 'audio/basic': return true;// snd au
			case 'audio/midi': return true;// rmi mid midi kar
			case 'audio/mp4': return true;// mp4a m4a
			case 'audio/mpeg': return true;// m3a mpga mp2 mp2a mp3 m2a
			case 'audio/ogg': return true;// spx oga ogg
			case 'audio/s3m': return true;// s3m
			case 'audio/silk': return true;// sil
			case 'audio/vnd.dece.audio': return true;// uvva uva
			case 'audio/vnd.digital-winds': return true;// eol
			case 'audio/vnd.dra': return true;// dra
			case 'audio/vnd.dts': return true;// dts
			case 'audio/vnd.dts.hd': return true;// dtshd
			case 'audio/vnd.lucent.voice': return true;// lvp
			case 'audio/vnd.ms-playready.media.pya': return true;// pya
			case 'audio/vnd.nuera.ecelp4800': return true;// ecelp4800
			case 'audio/vnd.nuera.ecelp7470': return true;// ecelp7470
			case 'audio/vnd.nuera.ecelp9600': return true;// ecelp9600
			case 'audio/vnd.rip': return true;// rip
			case 'audio/webm': return true;// weba
			case 'audio/x-aac': return true;// aac
			case 'audio/x-aiff': return true;// aifc aif aiff
			case 'audio/x-caf': return true;// caf
			case 'audio/x-flac': return true;// flac
			case 'audio/x-matroska': return true;// mka
			case 'audio/x-mpegurl': return true;// m3u
			case 'audio/x-ms-wax': return true;// wax
			case 'audio/x-ms-wma': return true;// wma
			case 'audio/x-pn-realaudio': return true;// ra ram
			case 'audio/x-pn-realaudio-plugin': return true;// rmp
			case 'audio/x-wav': return true;// wav
			case 'audio/xm': return true;// xm
			case 'chemical/x-cdx': return true;// cdx
			case 'chemical/x-cif': return true;// cif
			case 'chemical/x-cmdf': return true;// cmdf
			case 'chemical/x-cml': return true;// cml
			case 'chemical/x-csml': return true;// csml
			case 'chemical/x-xyz': return true;// xyz
			case 'image/bmp': return true;// bmp
			case 'image/cgm': return true;// cgm
			case 'image/g3fax': return true;// g3
			case 'image/gif': return true;// gif
			case 'image/ief': return true;// ief
			case 'image/jpeg': return true;// jpe jpeg jpg
			case 'image/ktx': return true;// ktx
			case 'image/png': return true;// png
			case 'image/prs.btif': return true;// btif
			case 'image/sgi': return true;// sgi
			case 'image/svg+xml': return true;// svgz svg
			case 'image/tiff': return true;// tif tiff
			case 'image/vnd.adobe.photoshop': return true;// psd
			case 'image/vnd.dece.graphic': return true;// uvvg uvi uvvi uvg
			case 'image/vnd.djvu': return true;// djv djvu
			case 'image/vnd.dvb.subtitle': return true;// sub
			case 'image/vnd.dwg': return true;// dwg
			case 'image/vnd.dxf': return true;// dxf
			case 'image/vnd.fastbidsheet': return true;// fbs
			case 'image/vnd.fpx': return true;// fpx
			case 'image/vnd.fst': return true;// fst
			case 'image/vnd.fujixerox.edmics-mmr': return true;// mmr
			case 'image/vnd.fujixerox.edmics-rlc': return true;// rlc
			case 'image/vnd.ms-modi': return true;// mdi
			case 'image/vnd.ms-photo': return true;// wdp
			case 'image/vnd.net-fpx': return true;// npx
			case 'image/vnd.wap.wbmp': return true;// wbmp
			case 'image/vnd.xiff': return true;// xif
			case 'image/webp': return true;// webp
			case 'image/x-3ds': return true;// 3ds
			case 'image/x-cmu-raster': return true;// ras
			case 'image/x-cmx': return true;// cmx
			case 'image/x-freehand': return true;// fh7 fh fhc fh4 fh5
			case 'image/x-ico': return true;// ico
			case 'image/x-icon': return true;// ico
			case 'image/x-mrsid-image': return true;// sid
			case 'image/x-ms-bmp': return true;// bmp
			case 'image/x-pcx': return true;// pcx
			case 'image/x-pict': return true;// pct pic
			case 'image/x-portable-anymap': return true;// pnm
			case 'image/x-portable-bitmap': return true;// pbm
			case 'image/x-portable-graymap': return true;// pgm
			case 'image/x-portable-greymap': return true;// pgm
			case 'image/x-portable-pixmap': return true;// ppm
			case 'image/x-rgb': return true;// rgb
			case 'image/x-tga': return true;// tga
			case 'image/x-xbitmap': return true;// xbm
			case 'image/x-xpixmap': return true;// xpm
			case 'image/x-xwindowdump': return true;// xwd
			case 'inode/x-empty': return false;// empty file
			case 'message/rfc822': return true;// mime eml
			case 'model/iges': return true;// iges igs
			case 'model/mesh': return true;// silo msh mesh
			case 'model/vnd.collada+xml': return true;// dae
			case 'model/vnd.dwf': return true;// dwf
			case 'model/vnd.gdl': return true;// gdl
			case 'model/vnd.gtw': return true;// gtw
			case 'model/vnd.mts': return true;// mts
			case 'model/vnd.vtu': return true;// vtu
			case 'model/vrml': return true;// vrml wrl
			case 'model/x3d+binary': return true;// x3dbz x3db
			case 'model/x3d+vrml': return true;// x3dvz x3dv
			case 'model/x3d+xml': return true;// x3dz x3d
			case 'text/cache-manifest': return true;// appcache
			case 'text/calendar': return true;// ifb ics
			case 'text/css': return true;// css
			case 'text/csv': return true;// csv
			case 'text/html': return true;// htm html
			case 'text/n3': return true;// n3
			case 'text/plain': return true;// in txt text conf def list log
			case 'text/prs.lines.tag': return true;// dsc
			case 'text/rtf': return true;// rtf
			case 'text/richtext': return true;// rtx
			case 'text/sgml': return true;// sgm sgml
			case 'text/tab-separated-values': return true;// tsv
			case 'text/troff': return true;// ms t tr roff man me
			case 'text/turtle': return true;// ttl
			case 'text/uri-list': return true;// urls uri uris
			case 'text/vcard': return true;// vcard
			case 'text/vnd.curl': return true;// curl
			case 'text/vnd.curl.dcurl': return true;// dcurl
			case 'text/vnd.curl.mcurl': return true;// mcurl
			case 'text/vnd.curl.scurl': return true;// scurl
			case 'text/vnd.dvb.subtitle': return true;// sub
			case 'text/vnd.fly': return true;// fly
			case 'text/vnd.fmi.flexstor': return true;// flx
			case 'text/vnd.graphviz': return true;// gv
			case 'text/vnd.in3d.3dml': return true;// 3dml
			case 'text/vnd.in3d.spot': return true;// spot
			case 'text/vnd.sun.j2me.app-descriptor': return true;// jad
			case 'text/vnd.wap.wml': return true;// wml
			case 'text/vnd.wap.wmlscript': return true;// wmls
			case 'text/x-asm': return true;// s asm
			case 'text/x-c': return true;// c cc cxx cpp h hh dic
			case 'text/x-c++': return true;// c++
			case 'text/x-fortran': return true;// f for f77 f90
			case 'text/x-java': return true;// java
			case 'text/x-java-source': return true;// java
			case 'text/x-makefile': return true;// Makefile
			case 'text/x-nfo': return true;// nfo
			case 'text/x-opml': return true;// opml
			case 'text/x-pascal': return true;// p pas
			case 'text/x-php': return true;// php
			case 'text/x-python': return true;// py
			case 'text/x-setext': return true;// etx
			case 'text/x-sfv': return true;// sfv
			case 'text/x-shellscript': return true;// ...
			case 'text/x-uuencode': return true;// uu
			case 'text/x-vcalendar': return true;// vcs
			case 'text/x-vcard': return true;// vcf
			case 'video/3gpp': return true;// 3gp
			case 'video/3gpp2': return true;// 3g2
			case 'video/h261': return true;// h261
			case 'video/h263': return true;// h263
			case 'video/h264': return true;// h264
			case 'video/jpeg': return true;// jpgv
			case 'video/jpm': return true;// jpm jpgm
			case 'video/mj2': return true;// mjp2 mj2
			case 'video/mp4': return true;// mpg4 mp4 mp4v
			case 'video/mpeg': return true;// m2v mpeg mpg mpe m1v
			case 'video/ogg': return true;// ogv
			case 'video/quicktime': return true;// mov qt
			case 'video/vnd.dece.hd': return true;// uvvh uvh
			case 'video/vnd.dece.mobile': return true;// uvvm uvm
			case 'video/vnd.dece.pd': return true;// uvvp uvp
			case 'video/vnd.dece.sd': return true;// uvvs uvs
			case 'video/vnd.dece.video': return true;// uvvv uvv
			case 'video/vnd.dvb.file': return true;// dvb
			case 'video/vnd.fvt': return true;// fvt
			case 'video/vnd.mpegurl': return true;// m4u mxu
			case 'video/vnd.ms-playready.media.pyv': return true;// pyv
			case 'video/vnd.uvvu.mp4': return true;// uvvu uvu
			case 'video/vnd.vivo': return true;// viv
			case 'video/webm': return true;// webm
			case 'video/x-f4v': return true;// f4v
			case 'video/x-fli': return true;// fli
			case 'video/x-flv': return true;// flv
			case 'video/x-m4v': return true;// m4v
			case 'video/x-matroska': return true;// mks mkv mk3d
			case 'video/x-mng': return true;// mng
			case 'video/x-ms-asf': return true;// asx asf
			case 'video/x-ms-vob': return true;// vob
			case 'video/x-ms-wm': return true;// wm
			case 'video/x-ms-wmv': return true;// wmv
			case 'video/x-ms-wmx': return true;// wmx
			case 'video/x-ms-wvx': return true;// wvx
			case 'video/x-msvideo': return true;// avi
			case 'video/x-sgi-movie': return true;// movie
			case 'video/x-smv': return true;// smv
			case 'x-conference/x-cooltalk': return true;// ice
		}
		return false;
	}

}