package httpserver

import "path/filepath"

func (h *HttpServer) FileType(name string) string {
	ext := filepath.Ext(name)
	if len(ext) == 0 || ext == "." {
		return "其他文件"
	}
	ext = ext[1:]
	mimeMap := map[string]string{
		"3g2":     "视频文件",
		"3gp":     "视频文件",
		"7z":      "压缩文件",
		"aac":     "音频文件",
		"aif":     "音频文件",
		"aiff":    "音频文件",
		"amr":     "音频文件",
		"apk":     "Android 应用程序",
		"appx":    "Windows 应用程序",
		"asf":     "视频文件",
		"avi":     "视频文件",
		"bak":     "备份文件",
		"bat":     "批处理文件",
		"bin":     "二进制文件",
		"bmp":     "图像文件",
		"c":       "源代码文件",
		"cab":     "Windows 安装文件",
		"cfg":     "配置文件",
		"class":   "Java 类文件",
		"com":     "可执行文件",
		"conf":    "配置文件",
		"cpp":     "C++ 源代码文件",
		"crx":     "Google Chrome 扩展",
		"cs":      "C# 源代码文件",
		"csv":     "电子表格文件",
		"cue":     "光盘映像文件",
		"dat":     "数据文件",
		"deb":     "Debian 安装包",
		"dll":     "动态链接库文件",
		"dmg":     "MacOS 安装文件",
		"doc":     "Microsoft Word 文档",
		"docx":    "Microsoft Word 文档",
		"dtd":     "文档类型定义文件",
		"dwg":     "CAD 文件",
		"dxf":     "CAD 文件",
		"eml":     "电子邮件文件",
		"eps":     "矢量图形文件",
		"exe":     "可执行文件",
		"flac":    "音频文件",
		"flv":     "视频文件",
		"fnt":     "字体文件",
		"fon":     "字体文件",
		"gif":     "图像文件",
		"gz":      "压缩文件",
		"htm":     "网页文件",
		"html":    "网页文件",
		"ibooks":  "iBooks 电子书",
		"ics":     "日历文件",
		"iso":     "光盘映像文件",
		"jar":     "Java 应用程序",
		"java":    "Java 源代码文件",
		"jpe":     "图像文件",
		"jpeg":    "图像文件",
		"jpg":     "图像文件",
		"js":      "JavaScript 文件",
		"json":    "JSON 文件",
		"key":     "Keynote 演示文稿",
		"log":     "日志文件",
		"m4a":     "音频文件",
		"m4v":     "视频文件",
		"mdb":     "Microsoft Access 数据库文件",
		"mht":     "网页存档文件",
		"mid":     "图像文件",
		"midi":    "音频文件",
		"mkv":     "视频文件",
		"mov":     "视频文件",
		"mp3":     "音频文件",
		"mp4":     "视频文件",
		"mpeg":    "视频文件",
		"mpg":     "视频文件",
		"msg":     "电子邮件文件",
		"nes":     "NES 游戏 ROM 文件",
		"obj":     "3D 模型文件",
		"odp":     "OpenOffice Impress 演示文稿",
		"ods":     "OpenOffice Calc 电子表格文件",
		"odt":     "OpenOffice Writer 文档",
		"ogg":     "音频文件",
		"otf":     "字体文件",
		"pages":   "Pages 文档",
		"pct":     "图像文件",
		"pdb":     "Palm 数据库文件",
		"pdf":     "Adobe PDF 文档",
		"php":     "PHP 文件",
		"go":      "Go 源代码文件",
		"pkg":     "MacOS 安装包",
		"pl":      "Perl 文件",
		"png":     "图像文件",
		"ppt":     "PowerPoint 演示文稿",
		"pptx":    "PowerPoint 演示文稿",
		"ps":      "PostScript 文件",
		"psd":     "Photoshop 文件",
		"py":      "Python 文件",
		"rar":     "压缩文件",
		"reg":     "Windows 注册表文件",
		"rm":      "视频文件",
		"rmvb":    "视频文件",
		"rom":     "游戏 ROM 文件",
		"rpm":     "Red Hat Package Manager 安装包",
		"rtf":     "Rich Text Format 文档",
		"sav":     "存档文件",
		"sh":      "Shell 脚本文件",
		"srt":     "字幕文件",
		"sql":     "SQL 数据库文件",
		"svg":     "矢量图形文件",
		"swf":     "Flash 文件",
		"tar":     "压缩文件",
		"tbz":     "压缩文件",
		"tbz2":    "压缩文件",
		"tgz":     "压缩文件",
		"tex":     "TeX 文档",
		"tga":     "图像文件",
		"tif":     "图像文件",
		"tiff":    "图像文件",
		"torrent": "BitTorrent 文件",
		"ttf":     "字体文件",
		"txt":     "纯文本文件",
		"uue":     "UUEncode 编码文件",
		"vbs":     "VBScript 文件",
		"vcf":     "联系人文件",
		"wav":     "音频文件",
		"webm":    "视频文件",
		"wma":     "音频文件",
		"wmv":     "视频文件",
		"woff":    "字体文件",
		"wpd":     "WordPerfect 文档",
		"wps":     "Microsoft Works 文档",
		"xhtml":   "网页文件",
		"xls":     "Excel 电子表格文件",
		"xlsx":    "Excel 电子表格文件",
		"xml":     "XML 文件",
		"xpi":     "Mozilla Firefox 扩展",
		"xps":     "Windows XPS 文档",
		"yaml":    "YAML 配置文件",
		"yml":     "YAML 配置文件",
		"zip":     "压缩文件",
		"cmd":     "命令行脚本文件",
		"gadget":  "Windows 桌面小工具",
		"hlp":     "帮助文件",
		"ini":     "配置文件",
		"ins":     "Internet 设置文件",
		"isp":     "Internet 设置文件",
		"job":     "计划任务文件",
		"jse":     "加密的 JavaScript 文件",
		"lnk":     "Windows 快捷方式",
		"msc":     "Microsoft 控制台文件",
		"msp":     "Windows Installer 补丁文件",
		"mst":     "Windows Installer 转换文件",
		"nls":     "国家化字符串文件",
		"ocx":     "ActiveX 控件文件",
		"ops":     "Office Profile Settings 文件",
		"pcd":     "Photo CD 图片文件",
		"pif":     "MS-DOS 程序快捷方式",
		"prf":     "Outlook 配置文件",
		"pst":     "Outlook 数据文件",
		"scf":     "Windows Explorer 命令文件",
		"scr":     "屏幕保护程序文件",
		"sct":     "Windows Script Component 文件",
		"shb":     "Windows 快捷方式对象文件",
		"shs":     "Shell Scrap Object 文件",
		"sys":     "系统文件",
		"theme":   "Windows 主题文件",
		"tmp":     "临时文件",
		"url":     "Internet 快捷方式",
		"vb":      "VBScript 文件",
		"vbe":     "VBScript 文件",
		"vxd":     "虚拟设备驱动程序文件",
		"wsc":     "Windows 脚本组件文件",
		"wsf":     "Windows 脚本文件",
		"wsh":     "Windows Script Host 设置文件",
		"hta":     "HTML 应用程序文件",
		"cpl":     "控制面板文件",
		"msi":     "Windows Installer 安装程序",
		"nfo":     "信息文本文件",
		"odc":     "Office 数据连接文件",
		"p7b":     "数字证书文件",
		"spc":     "数字证书文件",
		"pem":     "X.509 证书文件",
		"cer":     "X.509 证书文件",
		"der":     "X.509 证书文件",
		"pfx":     "个人信息交换格式文件",
		"p12":     "个人信息交换格式文件",
		"pot":     "PowerPoint 模板文件",
		"pps":     "PowerPoint 幻灯片演示文件",
		"ps1":     "Windows PowerShell 脚本文件",
		"pub":     "Publisher 文件",
		"qbb":     "QuickBooks 备份文件",
		"qbw":     "QuickBooks 公司文件",
		"qxd":     "QuarkXPress 文件",
		"qxp":     "QuarkXPress 文件",
		"ra":      "音频文件",
		"ram":     "音频文件",
		"rb":      "Ruby 文件",
		"rdf":     "RDF 文件",
		"res":     "资源文件",
		"sdf":     "Microsoft SQL Server CE 数据库文件",
		"sln":     "Visual Studio 解决方案文件",
		"stl":     "3D 模型文件",
		"sub":     "字幕文件",
		"ssa":     "字幕文件",
		"ass":     "字幕文件",
	}
	mime, ok := mimeMap[ext]
	if !ok {
		return "其他文件"
	}
	return mime
}

func (h *HttpServer) GetExt(fullpath string) string {
	ext := filepath.Ext(filepath.Base(fullpath))
	if len(ext) == 0 || ext == "." {
		return ""
	}
	return ext[1:]
}

func (h *HttpServer) MIME(fullpath string) string {
	ext := filepath.Ext(filepath.Base(fullpath))
	if len(ext) == 0 || ext == "." {
		return ""
	}
	ext = ext[1:]
	switch ext {
	case "123":
		return "application/vnd.lotus-1-2-3"
	case "3dml":
		return "text/vnd.in3d.3dml"
	case "3ds":
		return "image/x-3ds"
	case "3g2":
		return "video/3gpp2"
	case "3gp":
		return "video/3gpp"
	case "7z":
		return "application/x-7z-compressed"
	case "aab":
		return "application/x-authorware-bin"
	case "aac":
		return "audio/x-aac"
	case "aam":
		return "application/x-authorware-map"
	case "aas":
		return "application/x-authorware-seg"
	case "abs":
		return "audio/x-mpeg"
	case "abw":
		return "application/x-abiword"
	case "ac":
		return "application/pkix-attr-cert"
	case "acc":
		return "application/vnd.americandynamics.acc"
	case "ace":
		return "application/x-ace-compressed"
	case "acu":
		return "application/vnd.acucobol"
	case "acutc":
		return "application/vnd.acucorp"
	case "adp":
		return "audio/adpcm"
	case "aep":
		return "application/vnd.audiograph"
	case "afm":
		return "application/x-font-type1"
	case "afp":
		return "application/vnd.ibm.modcap"
	case "ahead":
		return "application/vnd.ahead.space"
	case "ai":
		return "application/postscript"
	case "aif":
		return "audio/x-aiff"
	case "aifc":
		return "audio/x-aiff"
	case "aiff":
		return "audio/x-aiff"
	case "aim":
		return "application/x-aim"
	case "air":
		return "application/vnd.adobe.air-application-installer-package+zip"
	case "ait":
		return "application/vnd.dvb.ait"
	case "ami":
		return "application/vnd.amiga.ami"
	case "anx":
		return "application/annodex"
	case "apk":
		return "application/vnd.android.package-archive"
	case "appcache":
		return "text/cache-manifest"
	case "application":
		return "application/x-ms-application"
	case "apr":
		return "application/vnd.lotus-approach"
	case "arc":
		return "application/x-freearc"
	case "art":
		return "image/x-jg"
	case "asc":
		return "application/pgp-signature"
	case "asf":
		return "video/x-ms-asf"
	case "asm":
		return "text/x-asm"
	case "aso":
		return "application/vnd.accpac.simply.aso"
	case "asx":
		return "video/x-ms-asf"
	case "atc":
		return "application/vnd.acucorp"
	case "atom":
		return "application/atom+xml"
	case "atomcat":
		return "application/atomcat+xml"
	case "atomsvc":
		return "application/atomsvc+xml"
	case "atx":
		return "application/vnd.antix.game-component"
	case "au":
		return "audio/basic"
	case "avi":
		return "video/x-msvideo"
	case "avx":
		return "video/x-rad-screenplay"
	case "aw":
		return "application/applixware"
	case "axa":
		return "audio/annodex"
	case "axv":
		return "video/annodex"
	case "azf":
		return "application/vnd.airzip.filesecure.azf"
	case "azs":
		return "application/vnd.airzip.filesecure.azs"
	case "azw":
		return "application/vnd.amazon.ebook"
	case "bat":
		return "application/x-msdownload"
	case "bcpio":
		return "application/x-bcpio"
	case "bdf":
		return "application/x-font-bdf"
	case "bdm":
		return "application/vnd.syncml.dm+wbxml"
	case "bed":
		return "application/vnd.realvnc.bed"
	case "bh2":
		return "application/vnd.fujitsu.oasysprs"
	case "bin":
		return "application/octet-stream"
	case "blb":
		return "application/x-blorb"
	case "blorb":
		return "application/x-blorb"
	case "bmi":
		return "application/vnd.bmi"
	case "bmp":
		return "image/bmp"
	case "body":
		return "text/html"
	case "book":
		return "application/vnd.framemaker"
	case "box":
		return "application/vnd.previewsystems.box"
	case "boz":
		return "application/x-bzip2"
	case "bpk":
		return "application/octet-stream"
	case "btif":
		return "image/prs.btif"
	case "bz":
		return "application/x-bzip"
	case "bz2":
		return "application/x-bzip2"
	case "c":
		return "text/x-c"
	case "c11amc":
		return "application/vnd.cluetrust.cartomobile-config"
	case "c11amz":
		return "application/vnd.cluetrust.cartomobile-config-pkg"
	case "c4d":
		return "application/vnd.clonk.c4group"
	case "c4f":
		return "application/vnd.clonk.c4group"
	case "c4g":
		return "application/vnd.clonk.c4group"
	case "c4p":
		return "application/vnd.clonk.c4group"
	case "c4u":
		return "application/vnd.clonk.c4group"
	case "cab":
		return "application/vnd.ms-cab-compressed"
	case "caf":
		return "audio/x-caf"
	case "cap":
		return "application/vnd.tcpdump.pcap"
	case "car":
		return "application/vnd.curl.car"
	case "cat":
		return "application/vnd.ms-pki.seccat"
	case "cb7":
		return "application/x-cbr"
	case "cba":
		return "application/x-cbr"
	case "cbr":
		return "application/x-cbr"
	case "cbt":
		return "application/x-cbr"
	case "cbz":
		return "application/x-cbr"
	case "cc":
		return "text/x-c"
	case "cct":
		return "application/x-director"
	case "ccxml":
		return "application/ccxml+xml"
	case "cdbcmsg":
		return "application/vnd.contact.cmsg"
	case "cdf":
		return "application/x-cdf"
	case "cdkey":
		return "application/vnd.mediastation.cdkey"
	case "cdmia":
		return "application/cdmi-capability"
	case "cdmic":
		return "application/cdmi-container"
	case "cdmid":
		return "application/cdmi-domain"
	case "cdmio":
		return "application/cdmi-object"
	case "cdmiq":
		return "application/cdmi-queue"
	case "cdx":
		return "chemical/x-cdx"
	case "cdxml":
		return "application/vnd.chemdraw+xml"
	case "cdy":
		return "application/vnd.cinderella"
	case "cer":
		return "application/pkix-cert"
	case "cfs":
		return "application/x-cfs-compressed"
	case "cgm":
		return "image/cgm"
	case "chat":
		return "application/x-chat"
	case "chm":
		return "application/vnd.ms-htmlhelp"
	case "chrt":
		return "application/vnd.kde.kchart"
	case "cif":
		return "chemical/x-cif"
	case "cii":
		return "application/vnd.anser-web-certificate-issue-initiation"
	case "cil":
		return "application/vnd.ms-artgalry"
	case "cla":
		return "application/vnd.claymore"
	case "class":
		return "application/java"
	case "clkk":
		return "application/vnd.crick.clicker.keyboard"
	case "clkp":
		return "application/vnd.crick.clicker.palette"
	case "clkt":
		return "application/vnd.crick.clicker.template"
	case "clkw":
		return "application/vnd.crick.clicker.wordbank"
	case "clkx":
		return "application/vnd.crick.clicker"
	case "clp":
		return "application/x-msclip"
	case "cmc":
		return "application/vnd.cosmocaller"
	case "cmdf":
		return "chemical/x-cmdf"
	case "cml":
		return "chemical/x-cml"
	case "cmp":
		return "application/vnd.yellowriver-custom-menu"
	case "cmx":
		return "image/x-cmx"
	case "cod":
		return "application/vnd.rim.cod"
	case "com":
		return "application/x-msdownload"
	case "conf":
		return "text/plain"
	case "cpio":
		return "application/x-cpio"
	case "cpp":
		return "text/x-c"
	case "cpt":
		return "application/mac-compactpro"
	case "crd":
		return "application/x-mscardfile"
	case "crl":
		return "application/pkix-crl"
	case "crt":
		return "application/x-x509-ca-cert"
	case "cryptonote":
		return "application/vnd.rig.cryptonote"
	case "csh":
		return "application/x-csh"
	case "csml":
		return "chemical/x-csml"
	case "csp":
		return "application/vnd.commonspace"
	case "css":
		return "text/css"
	case "cst":
		return "application/x-director"
	case "csv":
		return "text/csv"
	case "cu":
		return "application/cu-seeme"
	case "curl":
		return "text/vnd.curl"
	case "cww":
		return "application/prs.cww"
	case "cxt":
		return "application/x-director"
	case "cxx":
		return "text/x-c"
	case "dae":
		return "model/vnd.collada+xml"
	case "daf":
		return "application/vnd.mobius.daf"
	case "dart":
		return "application/vnd.dart"
	case "dataless":
		return "application/vnd.fdsn.seed"
	case "davmount":
		return "application/davmount+xml"
	case "dbk":
		return "application/docbook+xml"
	case "dcr":
		return "application/x-director"
	case "dcurl":
		return "text/vnd.curl.dcurl"
	case "dd2":
		return "application/vnd.oma.dd2+xml"
	case "ddd":
		return "application/vnd.fujixerox.ddd"
	case "deb":
		return "application/x-debian-package"
	case "def":
		return "text/plain"
	case "deploy":
		return "application/octet-stream"
	case "der":
		return "application/x-x509-ca-cert"
	case "dfac":
		return "application/vnd.dreamfactory"
	case "dgc":
		return "application/x-dgc-compressed"
	case "dib":
		return "image/bmp"
	case "dic":
		return "text/x-c"
	case "dir":
		return "application/x-director"
	case "dis":
		return "application/vnd.mobius.dis"
	case "dist":
		return "application/octet-stream"
	case "distz":
		return "application/octet-stream"
	case "djv":
		return "image/vnd.djvu"
	case "djvu":
		return "image/vnd.djvu"
	case "dll":
		return "application/x-msdownload"
	case "dmg":
		return "application/x-apple-diskimage"
	case "dmp":
		return "application/vnd.tcpdump.pcap"
	case "dms":
		return "application/octet-stream"
	case "dna":
		return "application/vnd.dna"
	case "doc":
		return "application/msword"
	case "docm":
		return "application/vnd.ms-word.document.macroenabled.12"
	case "docx":
		return "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
	case "dot":
		return "application/msword"
	case "dotm":
		return "application/vnd.ms-word.template.macroenabled.12"
	case "dotx":
		return "application/vnd.openxmlformats-officedocument.wordprocessingml.template"
	case "dp":
		return "application/vnd.osgi.dp"
	case "dpg":
		return "application/vnd.dpgraph"
	case "dra":
		return "audio/vnd.dra"
	case "dsc":
		return "text/prs.lines.tag"
	case "dssc":
		return "application/dssc+der"
	case "dtb":
		return "application/x-dtbook+xml"
	case "dtd":
		return "application/xml-dtd"
	case "dts":
		return "audio/vnd.dts"
	case "dtshd":
		return "audio/vnd.dts.hd"
	case "dump":
		return "application/octet-stream"
	case "dv":
		return "video/x-dv"
	case "dvb":
		return "video/vnd.dvb.file"
	case "dvi":
		return "application/x-dvi"
	case "dwf":
		return "model/vnd.dwf"
	case "dwg":
		return "image/vnd.dwg"
	case "dxf":
		return "image/vnd.dxf"
	case "dxp":
		return "application/vnd.spotfire.dxp"
	case "dxr":
		return "application/x-director"
	case "ecelp4800":
		return "audio/vnd.nuera.ecelp4800"
	case "ecelp7470":
		return "audio/vnd.nuera.ecelp7470"
	case "ecelp9600":
		return "audio/vnd.nuera.ecelp9600"
	case "ecma":
		return "application/ecmascript"
	case "edm":
		return "application/vnd.novadigm.edm"
	case "edx":
		return "application/vnd.novadigm.edx"
	case "efif":
		return "application/vnd.picsel"
	case "ei6":
		return "application/vnd.pg.osasli"
	case "elc":
		return "application/octet-stream"
	case "emf":
		return "application/x-msmetafile"
	case "eml":
		return "message/rfc822"
	case "emma":
		return "application/emma+xml"
	case "emz":
		return "application/x-msmetafile"
	case "eol":
		return "audio/vnd.digital-winds"
	case "eot":
		return "application/vnd.ms-fontobject"
	case "eps":
		return "application/postscript"
	case "epub":
		return "application/epub+zip"
	case "es3":
		return "application/vnd.eszigno3+xml"
	case "esa":
		return "application/vnd.osgi.subsystem"
	case "esf":
		return "application/vnd.epson.esf"
	case "et3":
		return "application/vnd.eszigno3+xml"
	case "etx":
		return "text/x-setext"
	case "eva":
		return "application/x-eva"
	case "evy":
		return "application/x-envoy"
	case "exe":
		return "application/octet-stream"
	case "exi":
		return "application/exi"
	case "ext":
		return "application/vnd.novadigm.ext"
	case "ez":
		return "application/andrew-inset"
	case "ez2":
		return "application/vnd.ezpix-album"
	case "ez3":
		return "application/vnd.ezpix-package"
	case "f":
		return "text/x-fortran"
	case "f4v":
		return "video/x-f4v"
	case "f77":
		return "text/x-fortran"
	case "f90":
		return "text/x-fortran"
	case "fbs":
		return "image/vnd.fastbidsheet"
	case "fcdt":
		return "application/vnd.adobe.formscentral.fcdt"
	case "fcs":
		return "application/vnd.isac.fcs"
	case "fdf":
		return "application/vnd.fdf"
	case "fe_launch":
		return "application/vnd.denovo.fcselayout-link"
	case "fg5":
		return "application/vnd.fujitsu.oasysgp"
	case "fgd":
		return "application/x-director"
	case "fh":
		return "image/x-freehand"
	case "fh4":
		return "image/x-freehand"
	case "fh5":
		return "image/x-freehand"
	case "fh7":
		return "image/x-freehand"
	case "fhc":
		return "image/x-freehand"
	case "fig":
		return "application/x-xfig"
	case "flac":
		return "audio/flac"
	case "fli":
		return "video/x-fli"
	case "flo":
		return "application/vnd.micrografx.flo"
	case "flv":
		return "video/x-flv"
	case "flw":
		return "application/vnd.kde.kivio"
	case "flx":
		return "text/vnd.fmi.flexstor"
	case "fly":
		return "text/vnd.fly"
	case "fm":
		return "application/vnd.framemaker"
	case "fnc":
		return "application/vnd.frogans.fnc"
	case "for":
		return "text/x-fortran"
	case "fpx":
		return "image/vnd.fpx"
	case "frame":
		return "application/vnd.framemaker"
	case "fsc":
		return "application/vnd.fsc.weblaunch"
	case "fst":
		return "image/vnd.fst"
	case "ftc":
		return "application/vnd.fluxtime.clip"
	case "fti":
		return "application/vnd.anser-web-funds-transfer-initiation"
	case "fvt":
		return "video/vnd.fvt"
	case "fxp":
		return "application/vnd.adobe.fxp"
	case "fxpl":
		return "application/vnd.adobe.fxp"
	case "fzs":
		return "application/vnd.fuzzysheet"
	case "g2w":
		return "application/vnd.geoplan"
	case "g3":
		return "image/g3fax"
	case "g3w":
		return "application/vnd.geospace"
	case "gac":
		return "application/vnd.groove-account"
	case "gam":
		return "application/x-tads"
	case "gbr":
		return "application/rpki-ghostbusters"
	case "gca":
		return "application/x-gca-compressed"
	case "gdl":
		return "model/vnd.gdl"
	case "geo":
		return "application/vnd.dynageo"
	case "gex":
		return "application/vnd.geometry-explorer"
	case "ggb":
		return "application/vnd.geogebra.file"
	case "ggt":
		return "application/vnd.geogebra.tool"
	case "ghf":
		return "application/vnd.groove-help"
	case "gif":
		return "image/gif"
	case "gim":
		return "application/vnd.groove-identity-message"
	case "gml":
		return "application/gml+xml"
	case "gmx":
		return "application/vnd.gmx"
	case "gnumeric":
		return "application/x-gnumeric"
	case "gph":
		return "application/vnd.flographit"
	case "gpx":
		return "application/gpx+xml"
	case "gqf":
		return "application/vnd.grafeq"
	case "gqs":
		return "application/vnd.grafeq"
	case "gram":
		return "application/srgs"
	case "gramps":
		return "application/x-gramps-xml"
	case "gre":
		return "application/vnd.geometry-explorer"
	case "grv":
		return "application/vnd.groove-injector"
	case "grxml":
		return "application/srgs+xml"
	case "gsf":
		return "application/x-font-ghostscript"
	case "gtar":
		return "application/x-gtar"
	case "gtm":
		return "application/vnd.groove-tool-message"
	case "gtw":
		return "model/vnd.gtw"
	case "gv":
		return "text/vnd.graphviz"
	case "gxf":
		return "application/gxf"
	case "gxt":
		return "application/vnd.geonext"
	case "gz":
		return "application/x-gzip"
	case "h":
		return "text/x-c"
	case "h261":
		return "video/h261"
	case "h263":
		return "video/h263"
	case "h264":
		return "video/h264"
	case "hal":
		return "application/vnd.hal+xml"
	case "hbci":
		return "application/vnd.hbci"
	case "hdf":
		return "application/x-hdf"
	case "hh":
		return "text/x-c"
	case "hlp":
		return "application/winhlp"
	case "hpgl":
		return "application/vnd.hp-hpgl"
	case "hpid":
		return "application/vnd.hp-hpid"
	case "hps":
		return "application/vnd.hp-hps"
	case "hqx":
		return "application/mac-binhex40"
	case "htc":
		return "text/x-component"
	case "htke":
		return "application/vnd.kenameaapp"
	case "htm":
		return "text/html"
	case "html":
		return "text/html"
	case "hvd":
		return "application/vnd.yamaha.hv-dic"
	case "hvp":
		return "application/vnd.yamaha.hv-voice"
	case "hvs":
		return "application/vnd.yamaha.hv-script"
	case "i2g":
		return "application/vnd.intergeo"
	case "icc":
		return "application/vnd.iccprofile"
	case "ice":
		return "x-conference/x-cooltalk"
	case "icm":
		return "application/vnd.iccprofile"
	case "ico":
		return "image/x-icon"
	case "ics":
		return "text/calendar"
	case "ief":
		return "image/ief"
	case "ifb":
		return "text/calendar"
	case "ifm":
		return "application/vnd.shana.informed.formdata"
	case "iges":
		return "model/iges"
	case "igl":
		return "application/vnd.igloader"
	case "igm":
		return "application/vnd.insors.igm"
	case "igs":
		return "model/iges"
	case "igx":
		return "application/vnd.micrografx.igx"
	case "iif":
		return "application/vnd.shana.informed.interchange"
	case "imp":
		return "application/vnd.accpac.simply.imp"
	case "ims":
		return "application/vnd.ms-ims"
	case "in":
		return "text/plain"
	case "ink":
		return "application/inkml+xml"
	case "inkml":
		return "application/inkml+xml"
	case "install":
		return "application/x-install-instructions"
	case "iota":
		return "application/vnd.astraea-software.iota"
	case "ipfix":
		return "application/ipfix"
	case "ipk":
		return "application/vnd.shana.informed.package"
	case "irm":
		return "application/vnd.ibm.rights-management"
	case "irp":
		return "application/vnd.irepository.package+xml"
	case "iso":
		return "application/x-iso9660-image"
	case "itp":
		return "application/vnd.shana.informed.formtemplate"
	case "ivp":
		return "application/vnd.immervision-ivp"
	case "ivu":
		return "application/vnd.immervision-ivu"
	case "jad":
		return "text/vnd.sun.j2me.app-descriptor"
	case "jam":
		return "application/vnd.jam"
	case "jar":
		return "application/java-archive"
	case "java":
		return "text/x-java-source"
	case "jisp":
		return "application/vnd.jisp"
	case "jlt":
		return "application/vnd.hp-jlyt"
	case "jnlp":
		return "application/x-java-jnlp-file"
	case "joda":
		return "application/vnd.joost.joda-archive"
	case "jpe":
		return "image/jpeg"
	case "jpeg":
		return "image/jpeg"
	case "jpg":
		return "image/jpeg"
	case "jpgm":
		return "video/jpm"
	case "jpgv":
		return "video/jpeg"
	case "jpm":
		return "video/jpm"
	case "js":
		return "application/javascript"
	case "jsf":
		return "text/plain"
	case "json":
		return "application/json"
	case "jsonml":
		return "application/jsonml+json"
	case "jspf":
		return "text/plain"
	case "kar":
		return "audio/midi"
	case "karbon":
		return "application/vnd.kde.karbon"
	case "kfo":
		return "application/vnd.kde.kformula"
	case "kia":
		return "application/vnd.kidspiration"
	case "kml":
		return "application/vnd.google-earth.kml+xml"
	case "kmz":
		return "application/vnd.google-earth.kmz"
	case "kne":
		return "application/vnd.kinar"
	case "knp":
		return "application/vnd.kinar"
	case "kon":
		return "application/vnd.kde.kontour"
	case "kpr":
		return "application/vnd.kde.kpresenter"
	case "kpt":
		return "application/vnd.kde.kpresenter"
	case "kpxx":
		return "application/vnd.ds-keypoint"
	case "ksp":
		return "application/vnd.kde.kspread"
	case "ktr":
		return "application/vnd.kahootz"
	case "ktx":
		return "image/ktx"
	case "ktz":
		return "application/vnd.kahootz"
	case "kwd":
		return "application/vnd.kde.kword"
	case "kwt":
		return "application/vnd.kde.kword"
	case "lasxml":
		return "application/vnd.las.las+xml"
	case "latex":
		return "application/x-latex"
	case "lbd":
		return "application/vnd.llamagraphics.life-balance.desktop"
	case "lbe":
		return "application/vnd.llamagraphics.life-balance.exchange+xml"
	case "les":
		return "application/vnd.hhe.lesson-player"
	case "lha":
		return "application/x-lzh-compressed"
	case "link66":
		return "application/vnd.route66.link66+xml"
	case "list":
		return "text/plain"
	case "list3820":
		return "application/vnd.ibm.modcap"
	case "listafp":
		return "application/vnd.ibm.modcap"
	case "lnk":
		return "application/x-ms-shortcut"
	case "log":
		return "text/plain"
	case "lostxml":
		return "application/lost+xml"
	case "lrf":
		return "application/octet-stream"
	case "lrm":
		return "application/vnd.ms-lrm"
	case "ltf":
		return "application/vnd.frogans.ltf"
	case "lvp":
		return "audio/vnd.lucent.voice"
	case "lwp":
		return "application/vnd.lotus-wordpro"
	case "lzh":
		return "application/x-lzh-compressed"
	case "m13":
		return "application/x-msmediaview"
	case "m14":
		return "application/x-msmediaview"
	case "m1v":
		return "video/mpeg"
	case "m21":
		return "application/mp21"
	case "m2a":
		return "audio/mpeg"
	case "m2v":
		return "video/mpeg"
	case "m3a":
		return "audio/mpeg"
	case "m3u":
		return "audio/x-mpegurl"
	case "m3u8":
		return "application/vnd.apple.mpegurl"
	case "m4a":
		return "audio/mp4"
	case "m4b":
		return "audio/mp4"
	case "m4r":
		return "audio/mp4"
	case "m4u":
		return "video/vnd.mpegurl"
	case "m4v":
		return "video/mp4"
	case "ma":
		return "application/mathematica"
	case "mac":
		return "image/x-macpaint"
	case "mads":
		return "application/mads+xml"
	case "mag":
		return "application/vnd.ecowin.chart"
	case "maker":
		return "application/vnd.framemaker"
	case "man":
		return "text/troff"
	case "mar":
		return "application/octet-stream"
	case "mathml":
		return "application/mathml+xml"
	case "mb":
		return "application/mathematica"
	case "mbk":
		return "application/vnd.mobius.mbk"
	case "mbox":
		return "application/mbox"
	case "mc1":
		return "application/vnd.medcalcdata"
	case "mcd":
		return "application/vnd.mcd"
	case "mcurl":
		return "text/vnd.curl.mcurl"
	case "mdb":
		return "application/x-msaccess"
	case "mdi":
		return "image/vnd.ms-modi"
	case "me":
		return "text/troff"
	case "mesh":
		return "model/mesh"
	case "meta4":
		return "application/metalink4+xml"
	case "metalink":
		return "application/metalink+xml"
	case "mets":
		return "application/mets+xml"
	case "mfm":
		return "application/vnd.mfmp"
	case "mft":
		return "application/rpki-manifest"
	case "mgp":
		return "application/vnd.osgeo.mapguide.package"
	case "mgz":
		return "application/vnd.proteus.magazine"
	case "mid":
		return "audio/midi"
	case "midi":
		return "audio/midi"
	case "mie":
		return "application/x-mie"
	case "mif":
		return "application/x-mif"
	case "mime":
		return "message/rfc822"
	case "mj2":
		return "video/mj2"
	case "mjp2":
		return "video/mj2"
	case "mk3d":
		return "video/x-matroska"
	case "mka":
		return "audio/x-matroska"
	case "mks":
		return "video/x-matroska"
	case "mkv":
		return "video/x-matroska"
	case "mlp":
		return "application/vnd.dolby.mlp"
	case "mmd":
		return "application/vnd.chipnuts.karaoke-mmd"
	case "mmf":
		return "application/vnd.smaf"
	case "mmr":
		return "image/vnd.fujixerox.edmics-mmr"
	case "mng":
		return "video/x-mng"
	case "mny":
		return "application/x-msmoney"
	case "mobi":
		return "application/x-mobipocket-ebook"
	case "mods":
		return "application/mods+xml"
	case "mov":
		return "video/quicktime"
	case "movie":
		return "video/x-sgi-movie"
	case "mp1":
		return "audio/mpeg"
	case "mp2":
		return "audio/mpeg"
	case "mp21":
		return "application/mp21"
	case "mp2a":
		return "audio/mpeg"
	case "mp3":
		return "audio/mpeg"
	case "mp4":
		return "video/mp4"
	case "mp4a":
		return "audio/mp4"
	case "mp4s":
		return "application/mp4"
	case "mp4v":
		return "video/mp4"
	case "mpa":
		return "audio/mpeg"
	case "mpc":
		return "application/vnd.mophun.certificate"
	case "mpe":
		return "video/mpeg"
	case "mpeg":
		return "video/mpeg"
	case "mpega":
		return "audio/x-mpeg"
	case "mpg":
		return "video/mpeg"
	case "mpg4":
		return "video/mp4"
	case "mpga":
		return "audio/mpeg"
	case "mpkg":
		return "application/vnd.apple.installer+xml"
	case "mpm":
		return "application/vnd.blueice.multipass"
	case "mpn":
		return "application/vnd.mophun.application"
	case "mpp":
		return "application/vnd.ms-project"
	case "mpt":
		return "application/vnd.ms-project"
	case "mpv2":
		return "video/mpeg2"
	case "mpy":
		return "application/vnd.ibm.minipay"
	case "mqy":
		return "application/vnd.mobius.mqy"
	case "mrc":
		return "application/marc"
	case "mrcx":
		return "application/marcxml+xml"
	case "ms":
		return "text/troff"
	case "mscml":
		return "application/mediaservercontrol+xml"
	case "mseed":
		return "application/vnd.fdsn.mseed"
	case "mseq":
		return "application/vnd.mseq"
	case "msf":
		return "application/vnd.epson.msf"
	case "msh":
		return "model/mesh"
	case "msi":
		return "application/x-msdownload"
	case "msl":
		return "application/vnd.mobius.msl"
	case "msty":
		return "application/vnd.muvee.style"
	case "mts":
		return "model/vnd.mts"
	case "mus":
		return "application/vnd.musician"
	case "musicxml":
		return "application/vnd.recordare.musicxml+xml"
	case "mvb":
		return "application/x-msmediaview"
	case "mwf":
		return "application/vnd.mfer"
	case "mxf":
		return "application/mxf"
	case "mxl":
		return "application/vnd.recordare.musicxml"
	case "mxml":
		return "application/xv+xml"
	case "mxs":
		return "application/vnd.triscape.mxs"
	case "mxu":
		return "video/vnd.mpegurl"
	case "n-gage":
		return "application/vnd.nokia.n-gage.symbian.install"
	case "n3":
		return "text/n3"
	case "nb":
		return "application/mathematica"
	case "nbp":
		return "application/vnd.wolfram.player"
	case "nc":
		return "application/x-netcdf"
	case "ncx":
		return "application/x-dtbncx+xml"
	case "nfo":
		return "text/x-nfo"
	case "ngdat":
		return "application/vnd.nokia.n-gage.data"
	case "nitf":
		return "application/vnd.nitf"
	case "nlu":
		return "application/vnd.neurolanguage.nlu"
	case "nml":
		return "application/vnd.enliven"
	case "nnd":
		return "application/vnd.noblenet-directory"
	case "nns":
		return "application/vnd.noblenet-sealer"
	case "nnw":
		return "application/vnd.noblenet-web"
	case "npx":
		return "image/vnd.net-fpx"
	case "nsc":
		return "application/x-conference"
	case "nsf":
		return "application/vnd.lotus-notes"
	case "ntf":
		return "application/vnd.nitf"
	case "nzb":
		return "application/x-nzb"
	case "oa2":
		return "application/vnd.fujitsu.oasys2"
	case "oa3":
		return "application/vnd.fujitsu.oasys3"
	case "oas":
		return "application/vnd.fujitsu.oasys"
	case "obd":
		return "application/x-msbinder"
	case "obj":
		return "application/x-tgif"
	case "oda":
		return "application/oda"
	case "odb":
		return "application/vnd.oasis.opendocument.database"
	case "odc":
		return "application/vnd.oasis.opendocument.chart"
	case "odf":
		return "application/vnd.oasis.opendocument.formula"
	case "odft":
		return "application/vnd.oasis.opendocument.formula-template"
	case "odg":
		return "application/vnd.oasis.opendocument.graphics"
	case "odi":
		return "application/vnd.oasis.opendocument.image"
	case "odm":
		return "application/vnd.oasis.opendocument.text-master"
	case "odp":
		return "application/vnd.oasis.opendocument.presentation"
	case "ods":
		return "application/vnd.oasis.opendocument.spreadsheet"
	case "odt":
		return "application/vnd.oasis.opendocument.text"
	case "oga":
		return "audio/ogg"
	case "ogg":
		return "audio/ogg"
	case "ogv":
		return "video/ogg"
	case "ogx":
		return "application/ogg"
	case "omdoc":
		return "application/omdoc+xml"
	case "onepkg":
		return "application/onenote"
	case "onetmp":
		return "application/onenote"
	case "onetoc":
		return "application/onenote"
	case "onetoc2":
		return "application/onenote"
	case "opf":
		return "application/oebps-package+xml"
	case "opml":
		return "text/x-opml"
	case "oprc":
		return "application/vnd.palm"
	case "org":
		return "application/vnd.lotus-organizer"
	case "osf":
		return "application/vnd.yamaha.openscoreformat"
	case "osfpvg":
		return "application/vnd.yamaha.openscoreformat.osfpvg+xml"
	case "otc":
		return "application/vnd.oasis.opendocument.chart-template"
	case "otf":
		return "application/x-font-otf"
	case "otg":
		return "application/vnd.oasis.opendocument.graphics-template"
	case "oth":
		return "application/vnd.oasis.opendocument.text-web"
	case "oti":
		return "application/vnd.oasis.opendocument.image-template"
	case "otp":
		return "application/vnd.oasis.opendocument.presentation-template"
	case "ots":
		return "application/vnd.oasis.opendocument.spreadsheet-template"
	case "ott":
		return "application/vnd.oasis.opendocument.text-template"
	case "oxps":
		return "application/oxps"
	case "oxt":
		return "application/vnd.openofficeorg.extension"
	case "p":
		return "text/x-pascal"
	case "p10":
		return "application/pkcs10"
	case "p12":
		return "application/x-pkcs12"
	case "p7b":
		return "application/x-pkcs7-certificates"
	case "p7c":
		return "application/pkcs7-mime"
	case "p7m":
		return "application/pkcs7-mime"
	case "p7r":
		return "application/x-pkcs7-certreqresp"
	case "p7s":
		return "application/pkcs7-signature"
	case "p8":
		return "application/pkcs8"
	case "pas":
		return "text/x-pascal"
	case "paw":
		return "application/vnd.pawaafile"
	case "pbd":
		return "application/vnd.powerbuilder6"
	case "pbm":
		return "image/x-portable-bitmap"
	case "pcap":
		return "application/vnd.tcpdump.pcap"
	case "pcf":
		return "application/x-font-pcf"
	case "pcl":
		return "application/vnd.hp-pcl"
	case "pclxl":
		return "application/vnd.hp-pclxl"
	case "pct":
		return "image/pict"
	case "pcurl":
		return "application/vnd.curl.pcurl"
	case "pcx":
		return "image/x-pcx"
	case "pdb":
		return "application/vnd.palm"
	case "pdf":
		return "application/pdf"
	case "pfa":
		return "application/x-font-type1"
	case "pfb":
		return "application/x-font-type1"
	case "pfm":
		return "application/x-font-type1"
	case "pfr":
		return "application/font-tdpfr"
	case "pfx":
		return "application/x-pkcs12"
	case "pgm":
		return "image/x-portable-graymap"
	case "pgn":
		return "application/x-chess-pgn"
	case "pgp":
		return "application/pgp-encrypted"
	case "pic":
		return "image/pict"
	case "pict":
		return "image/pict"
	case "pkg":
		return "application/octet-stream"
	case "pki":
		return "application/pkixcmp"
	case "pkipath":
		return "application/pkix-pkipath"
	case "plb":
		return "application/vnd.3gpp.pic-bw-large"
	case "plc":
		return "application/vnd.mobius.plc"
	case "plf":
		return "application/vnd.pocketlearn"
	case "pls":
		return "audio/x-scpls"
	case "pml":
		return "application/vnd.ctc-posml"
	case "png":
		return "image/png"
	case "pnm":
		return "image/x-portable-anymap"
	case "pnt":
		return "image/x-macpaint"
	case "portpkg":
		return "application/vnd.macports.portpkg"
	case "pot":
		return "application/vnd.ms-powerpoint"
	case "potm":
		return "application/vnd.ms-powerpoint.template.macroenabled.12"
	case "potx":
		return "application/vnd.openxmlformats-officedocument.presentationml.template"
	case "ppam":
		return "application/vnd.ms-powerpoint.addin.macroenabled.12"
	case "ppd":
		return "application/vnd.cups-ppd"
	case "ppm":
		return "image/x-portable-pixmap"
	case "pps":
		return "application/vnd.ms-powerpoint"
	case "ppsm":
		return "application/vnd.ms-powerpoint.slideshow.macroenabled.12"
	case "ppsx":
		return "application/vnd.openxmlformats-officedocument.presentationml.slideshow"
	case "ppt":
		return "application/vnd.ms-powerpoint"
	case "pptm":
		return "application/vnd.ms-powerpoint.presentation.macroenabled.12"
	case "pptx":
		return "application/vnd.openxmlformats-officedocument.presentationml.presentation"
	case "pqa":
		return "application/vnd.palm"
	case "prc":
		return "application/x-mobipocket-ebook"
	case "pre":
		return "application/vnd.lotus-freelance"
	case "prf":
		return "application/pics-rules"
	case "ps":
		return "application/postscript"
	case "psb":
		return "application/vnd.3gpp.pic-bw-small"
	case "psd":
		return "image/vnd.adobe.photoshop"
	case "psf":
		return "application/x-font-linux-psf"
	case "pskcxml":
		return "application/pskc+xml"
	case "ptid":
		return "application/vnd.pvi.ptid1"
	case "pub":
		return "application/x-mspublisher"
	case "pvb":
		return "application/vnd.3gpp.pic-bw-var"
	case "pwn":
		return "application/vnd.3m.post-it-notes"
	case "pya":
		return "audio/vnd.ms-playready.media.pya"
	case "pyv":
		return "video/vnd.ms-playready.media.pyv"
	case "qam":
		return "application/vnd.epson.quickanime"
	case "qbo":
		return "application/vnd.intu.qbo"
	case "qfx":
		return "application/vnd.intu.qfx"
	case "qps":
		return "application/vnd.publishare-delta-tree"
	case "qt":
		return "video/quicktime"
	case "qti":
		return "image/x-quicktime"
	case "qtif":
		return "image/x-quicktime"
	case "qwd":
		return "application/vnd.quark.quarkxpress"
	case "qwt":
		return "application/vnd.quark.quarkxpress"
	case "qxb":
		return "application/vnd.quark.quarkxpress"
	case "qxd":
		return "application/vnd.quark.quarkxpress"
	case "qxl":
		return "application/vnd.quark.quarkxpress"
	case "qxt":
		return "application/vnd.quark.quarkxpress"
	case "ra":
		return "audio/x-pn-realaudio"
	case "ram":
		return "audio/x-pn-realaudio"
	case "rar":
		return "application/x-rar-compressed"
	case "ras":
		return "image/x-cmu-raster"
	case "rcprofile":
		return "application/vnd.ipunplugged.rcprofile"
	case "rdf":
		return "application/rdf+xml"
	case "rdz":
		return "application/vnd.data-vision.rdz"
	case "rep":
		return "application/vnd.businessobjects"
	case "res":
		return "application/x-dtbresource+xml"
	case "rgb":
		return "image/x-rgb"
	case "rif":
		return "application/reginfo+xml"
	case "rip":
		return "audio/vnd.rip"
	case "ris":
		return "application/x-research-info-systems"
	case "rl":
		return "application/resource-lists+xml"
	case "rlc":
		return "image/vnd.fujixerox.edmics-rlc"
	case "rld":
		return "application/resource-lists-diff+xml"
	case "rm":
		return "application/vnd.rn-realmedia"
	case "rmi":
		return "audio/midi"
	case "rmp":
		return "audio/x-pn-realaudio-plugin"
	case "rms":
		return "application/vnd.jcp.javame.midlet-rms"
	case "rmvb":
		return "application/vnd.rn-realmedia-vbr"
	case "rnc":
		return "application/relax-ng-compact-syntax"
	case "roa":
		return "application/rpki-roa"
	case "roff":
		return "text/troff"
	case "rp9":
		return "application/vnd.cloanto.rp9"
	case "rpss":
		return "application/vnd.nokia.radio-presets"
	case "rpst":
		return "application/vnd.nokia.radio-preset"
	case "rq":
		return "application/sparql-query"
	case "rs":
		return "application/rls-services+xml"
	case "rsd":
		return "application/rsd+xml"
	case "rss":
		return "application/rss+xml"
	case "rtf":
		return "application/rtf"
	case "rtx":
		return "text/richtext"
	case "s":
		return "text/x-asm"
	case "s3m":
		return "audio/s3m"
	case "saf":
		return "application/vnd.yamaha.smaf-audio"
	case "sbml":
		return "application/sbml+xml"
	case "sc":
		return "application/vnd.ibm.secure-container"
	case "scd":
		return "application/x-msschedule"
	case "scm":
		return "application/vnd.lotus-screencam"
	case "scq":
		return "application/scvp-cv-request"
	case "scs":
		return "application/scvp-cv-response"
	case "scurl":
		return "text/vnd.curl.scurl"
	case "sda":
		return "application/vnd.stardivision.draw"
	case "sdc":
		return "application/vnd.stardivision.calc"
	case "sdd":
		return "application/vnd.stardivision.impress"
	case "sdkd":
		return "application/vnd.solent.sdkm+xml"
	case "sdkm":
		return "application/vnd.solent.sdkm+xml"
	case "sdp":
		return "application/sdp"
	case "sdw":
		return "application/vnd.stardivision.writer"
	case "see":
		return "application/vnd.seemail"
	case "seed":
		return "application/vnd.fdsn.seed"
	case "sema":
		return "application/vnd.sema"
	case "semd":
		return "application/vnd.semd"
	case "semf":
		return "application/vnd.semf"
	case "ser":
		return "application/java-serialized-object"
	case "setpay":
		return "application/set-payment-initiation"
	case "setreg":
		return "application/set-registration-initiation"
	case "sfd-hdstx":
		return "application/vnd.hydrostatix.sof-data"
	case "sfs":
		return "application/vnd.spotfire.sfs"
	case "sfv":
		return "text/x-sfv"
	case "sgi":
		return "image/sgi"
	case "sgl":
		return "application/vnd.stardivision.writer-global"
	case "sgm":
		return "text/sgml"
	case "sgml":
		return "text/sgml"
	case "sh":
		return "application/x-sh"
	case "shar":
		return "application/x-shar"
	case "shf":
		return "application/shf+xml"
	case "sid":
		return "image/x-mrsid-image"
	case "sig":
		return "application/pgp-signature"
	case "sil":
		return "audio/silk"
	case "silo":
		return "model/mesh"
	case "sis":
		return "application/vnd.symbian.install"
	case "sisx":
		return "application/vnd.symbian.install"
	case "sit":
		return "application/x-stuffit"
	case "sitx":
		return "application/x-stuffitx"
	case "skd":
		return "application/vnd.koan"
	case "skm":
		return "application/vnd.koan"
	case "skp":
		return "application/vnd.koan"
	case "skt":
		return "application/vnd.koan"
	case "sldm":
		return "application/vnd.ms-powerpoint.slide.macroenabled.12"
	case "sldx":
		return "application/vnd.openxmlformats-officedocument.presentationml.slide"
	case "slt":
		return "application/vnd.epson.salt"
	case "sm":
		return "application/vnd.stepmania.stepchart"
	case "smf":
		return "application/vnd.stardivision.math"
	case "smi":
		return "application/smil+xml"
	case "smil":
		return "application/smil+xml"
	case "smv":
		return "video/x-smv"
	case "smzip":
		return "application/vnd.stepmania.package"
	case "snd":
		return "audio/basic"
	case "snf":
		return "application/x-font-snf"
	case "so":
		return "application/octet-stream"
	case "spc":
		return "application/x-pkcs7-certificates"
	case "spf":
		return "application/vnd.yamaha.smaf-phrase"
	case "spl":
		return "application/x-futuresplash"
	case "spot":
		return "text/vnd.in3d.spot"
	case "spp":
		return "application/scvp-vp-response"
	case "spq":
		return "application/scvp-vp-request"
	case "spx":
		return "audio/ogg"
	case "sql":
		return "application/x-sql"
	case "src":
		return "application/x-wais-source"
	case "srt":
		return "application/x-subrip"
	case "sru":
		return "application/sru+xml"
	case "srx":
		return "application/sparql-results+xml"
	case "ssdl":
		return "application/ssdl+xml"
	case "sse":
		return "application/vnd.kodak-descriptor"
	case "ssf":
		return "application/vnd.epson.ssf"
	case "ssml":
		return "application/ssml+xml"
	case "st":
		return "application/vnd.sailingtracker.track"
	case "stc":
		return "application/vnd.sun.xml.calc.template"
	case "std":
		return "application/vnd.sun.xml.draw.template"
	case "stf":
		return "application/vnd.wt.stf"
	case "sti":
		return "application/vnd.sun.xml.impress.template"
	case "stk":
		return "application/hyperstudio"
	case "stl":
		return "application/vnd.ms-pki.stl"
	case "str":
		return "application/vnd.pg.format"
	case "stw":
		return "application/vnd.sun.xml.writer.template"
	case "sub":
		return "text/vnd.dvb.subtitle"
	case "sus":
		return "application/vnd.sus-calendar"
	case "susp":
		return "application/vnd.sus-calendar"
	case "sv4cpio":
		return "application/x-sv4cpio"
	case "sv4crc":
		return "application/x-sv4crc"
	case "svc":
		return "application/vnd.dvb.service"
	case "svd":
		return "application/vnd.svd"
	case "svg":
		return "image/svg+xml"
	case "svgz":
		return "image/svg+xml"
	case "swa":
		return "application/x-director"
	case "swf":
		return "application/x-shockwave-flash"
	case "swi":
		return "application/vnd.aristanetworks.swi"
	case "sxc":
		return "application/vnd.sun.xml.calc"
	case "sxd":
		return "application/vnd.sun.xml.draw"
	case "sxg":
		return "application/vnd.sun.xml.writer.global"
	case "sxi":
		return "application/vnd.sun.xml.impress"
	case "sxm":
		return "application/vnd.sun.xml.math"
	case "sxw":
		return "application/vnd.sun.xml.writer"
	case "t":
		return "text/troff"
	case "t3":
		return "application/x-t3vm-image"
	case "taglet":
		return "application/vnd.mynfc"
	case "tao":
		return "application/vnd.tao.intent-module-archive"
	case "tar":
		return "application/x-tar"
	case "tcap":
		return "application/vnd.3gpp2.tcap"
	case "tcl":
		return "application/x-tcl"
	case "teacher":
		return "application/vnd.smart.teacher"
	case "tei":
		return "application/tei+xml"
	case "teicorpus":
		return "application/tei+xml"
	case "tex":
		return "application/x-tex"
	case "texi":
		return "application/x-texinfo"
	case "texinfo":
		return "application/x-texinfo"
	case "text":
		return "text/plain"
	case "tfi":
		return "application/thraud+xml"
	case "tfm":
		return "application/x-tex-tfm"
	case "tga":
		return "image/x-tga"
	case "thmx":
		return "application/vnd.ms-officetheme"
	case "tif":
		return "image/tiff"
	case "tiff":
		return "image/tiff"
	case "tmo":
		return "application/vnd.tmobile-livetv"
	case "torrent":
		return "application/x-bittorrent"
	case "tpl":
		return "application/vnd.groove-tool-template"
	case "tpt":
		return "application/vnd.trid.tpt"
	case "tr":
		return "text/troff"
	case "tra":
		return "application/vnd.trueapp"
	case "trm":
		return "application/x-msterminal"
	case "tsd":
		return "application/timestamped-data"
	case "tsv":
		return "text/tab-separated-values"
	case "ttc":
		return "application/x-font-ttf"
	case "ttf":
		return "application/x-font-ttf"
	case "ttl":
		return "text/turtle"
	case "twd":
		return "application/vnd.simtech-mindmapper"
	case "twds":
		return "application/vnd.simtech-mindmapper"
	case "txd":
		return "application/vnd.genomatix.tuxedo"
	case "txf":
		return "application/vnd.mobius.txf"
	case "txt":
		return "text/plain"
	case "u32":
		return "application/x-authorware-bin"
	case "udeb":
		return "application/x-debian-package"
	case "ufd":
		return "application/vnd.ufdl"
	case "ufdl":
		return "application/vnd.ufdl"
	case "ulw":
		return "audio/basic"
	case "ulx":
		return "application/x-glulx"
	case "umj":
		return "application/vnd.umajin"
	case "unityweb":
		return "application/vnd.unity"
	case "uoml":
		return "application/vnd.uoml+xml"
	case "uri":
		return "text/uri-list"
	case "uris":
		return "text/uri-list"
	case "urls":
		return "text/uri-list"
	case "ustar":
		return "application/x-ustar"
	case "utz":
		return "application/vnd.uiq.theme"
	case "uu":
		return "text/x-uuencode"
	case "uva":
		return "audio/vnd.dece.audio"
	case "uvd":
		return "application/vnd.dece.data"
	case "uvf":
		return "application/vnd.dece.data"
	case "uvg":
		return "image/vnd.dece.graphic"
	case "uvh":
		return "video/vnd.dece.hd"
	case "uvi":
		return "image/vnd.dece.graphic"
	case "uvm":
		return "video/vnd.dece.mobile"
	case "uvp":
		return "video/vnd.dece.pd"
	case "uvs":
		return "video/vnd.dece.sd"
	case "uvt":
		return "application/vnd.dece.ttml+xml"
	case "uvu":
		return "video/vnd.uvvu.mp4"
	case "uvv":
		return "video/vnd.dece.video"
	case "uvva":
		return "audio/vnd.dece.audio"
	case "uvvd":
		return "application/vnd.dece.data"
	case "uvvf":
		return "application/vnd.dece.data"
	case "uvvg":
		return "image/vnd.dece.graphic"
	case "uvvh":
		return "video/vnd.dece.hd"
	case "uvvi":
		return "image/vnd.dece.graphic"
	case "uvvm":
		return "video/vnd.dece.mobile"
	case "uvvp":
		return "video/vnd.dece.pd"
	case "uvvs":
		return "video/vnd.dece.sd"
	case "uvvt":
		return "application/vnd.dece.ttml+xml"
	case "uvvu":
		return "video/vnd.uvvu.mp4"
	case "uvvv":
		return "video/vnd.dece.video"
	case "uvvx":
		return "application/vnd.dece.unspecified"
	case "uvvz":
		return "application/vnd.dece.zip"
	case "uvx":
		return "application/vnd.dece.unspecified"
	case "uvz":
		return "application/vnd.dece.zip"
	case "vcard":
		return "text/vcard"
	case "vcd":
		return "application/x-cdlink"
	case "vcf":
		return "text/x-vcard"
	case "vcg":
		return "application/vnd.groove-vcard"
	case "vcs":
		return "text/x-vcalendar"
	case "vcx":
		return "application/vnd.vcx"
	case "vis":
		return "application/vnd.visionary"
	case "viv":
		return "video/vnd.vivo"
	case "vob":
		return "video/x-ms-vob"
	case "vor":
		return "application/vnd.stardivision.writer"
	case "vox":
		return "application/x-authorware-bin"
	case "vrml":
		return "model/vrml"
	case "vsd":
		return "application/vnd.visio"
	case "vsf":
		return "application/vnd.vsf"
	case "vss":
		return "application/vnd.visio"
	case "vst":
		return "application/vnd.visio"
	case "vsw":
		return "application/vnd.visio"
	case "vtu":
		return "model/vnd.vtu"
	case "vxml":
		return "application/voicexml+xml"
	case "w3d":
		return "application/x-director"
	case "wad":
		return "application/x-doom"
	case "wav":
		return "audio/x-wav"
	case "wax":
		return "audio/x-ms-wax"
	case "wbmp":
		return "image/vnd.wap.wbmp"
	case "wbs":
		return "application/vnd.criticaltools.wbs+xml"
	case "wbxml":
		return "application/vnd.wap.wbxml"
	case "wcm":
		return "application/vnd.ms-works"
	case "wdb":
		return "application/vnd.ms-works"
	case "wdp":
		return "image/vnd.ms-photo"
	case "weba":
		return "audio/webm"
	case "webm":
		return "video/webm"
	case "webp":
		return "image/webp"
	case "wg":
		return "application/vnd.pmi.widget"
	case "wgt":
		return "application/widget"
	case "wks":
		return "application/vnd.ms-works"
	case "wm":
		return "video/x-ms-wm"
	case "wma":
		return "audio/x-ms-wma"
	case "wmd":
		return "application/x-ms-wmd"
	case "wmf":
		return "application/x-msmetafile"
	case "wml":
		return "text/vnd.wap.wml"
	case "wmlc":
		return "application/vnd.wap.wmlc"
	case "wmls":
		return "text/vnd.wap.wmlscript"
	case "wmlsc":
		return "application/vnd.wap.wmlscriptc"
	case "wmv":
		return "video/x-ms-wmv"
	case "wmx":
		return "video/x-ms-wmx"
	case "wmz":
		return "application/x-msmetafile"
	case "woff":
		return "application/x-font-woff"
	case "wpd":
		return "application/vnd.wordperfect"
	case "wpl":
		return "application/vnd.ms-wpl"
	case "wps":
		return "application/vnd.ms-works"
	case "wqd":
		return "application/vnd.wqd"
	case "wri":
		return "application/x-mswrite"
	case "wrl":
		return "model/vrml"
	case "wsdl":
		return "application/wsdl+xml"
	case "wspolicy":
		return "application/wspolicy+xml"
	case "wtb":
		return "application/vnd.webturbo"
	case "wvx":
		return "video/x-ms-wvx"
	case "x32":
		return "application/x-authorware-bin"
	case "x3d":
		return "model/x3d+xml"
	case "x3db":
		return "model/x3d+binary"
	case "x3dbz":
		return "model/x3d+binary"
	case "x3dv":
		return "model/x3d+vrml"
	case "x3dvz":
		return "model/x3d+vrml"
	case "x3dz":
		return "model/x3d+xml"
	case "xaml":
		return "application/xaml+xml"
	case "xap":
		return "application/x-silverlight-app"
	case "xar":
		return "application/vnd.xara"
	case "xbap":
		return "application/x-ms-xbap"
	case "xbd":
		return "application/vnd.fujixerox.docuworks.binder"
	case "xbm":
		return "image/x-xbitmap"
	case "xdf":
		return "application/xcap-diff+xml"
	case "xdm":
		return "application/vnd.syncml.dm+xml"
	case "xdp":
		return "application/vnd.adobe.xdp+xml"
	case "xdssc":
		return "application/dssc+xml"
	case "xdw":
		return "application/vnd.fujixerox.docuworks"
	case "xenc":
		return "application/xenc+xml"
	case "xer":
		return "application/patch-ops-error+xml"
	case "xfdf":
		return "application/vnd.adobe.xfdf"
	case "xfdl":
		return "application/vnd.xfdl"
	case "xht":
		return "application/xhtml+xml"
	case "xhtml":
		return "application/xhtml+xml"
	case "xhvml":
		return "application/xv+xml"
	case "xif":
		return "image/vnd.xiff"
	case "xla":
		return "application/vnd.ms-excel"
	case "xlam":
		return "application/vnd.ms-excel.addin.macroenabled.12"
	case "xlc":
		return "application/vnd.ms-excel"
	case "xlf":
		return "application/x-xliff+xml"
	case "xlm":
		return "application/vnd.ms-excel"
	case "xls":
		return "application/vnd.ms-excel"
	case "xlsb":
		return "application/vnd.ms-excel.sheet.binary.macroenabled.12"
	case "xlsm":
		return "application/vnd.ms-excel.sheet.macroenabled.12"
	case "xlsx":
		return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
	case "xlt":
		return "application/vnd.ms-excel"
	case "xltm":
		return "application/vnd.ms-excel.template.macroenabled.12"
	case "xltx":
		return "application/vnd.openxmlformats-officedocument.spreadsheetml.template"
	case "xlw":
		return "application/vnd.ms-excel"
	case "xm":
		return "audio/xm"
	case "xml":
		return "application/xml"
	case "xo":
		return "application/vnd.olpc-sugar"
	case "xop":
		return "application/xop+xml"
	case "xpi":
		return "application/x-xpinstall"
	case "xpl":
		return "application/xproc+xml"
	case "xpm":
		return "image/x-xpixmap"
	case "xpr":
		return "application/vnd.is-xpr"
	case "xps":
		return "application/vnd.ms-xpsdocument"
	case "xpw":
		return "application/vnd.intercon.formnet"
	case "xpx":
		return "application/vnd.intercon.formnet"
	case "xsl":
		return "application/xml"
	case "xslt":
		return "application/xslt+xml"
	case "xsm":
		return "application/vnd.syncml+xml"
	case "xspf":
		return "application/xspf+xml"
	case "xul":
		return "application/vnd.mozilla.xul+xml"
	case "xvm":
		return "application/xv+xml"
	case "xvml":
		return "application/xv+xml"
	case "xwd":
		return "image/x-xwindowdump"
	case "xyz":
		return "chemical/x-xyz"
	case "xz":
		return "application/x-xz"
	case "yang":
		return "application/yang"
	case "yin":
		return "application/yin+xml"
	case "z":
		return "application/x-compress"
	case "Z":
		return "application/x-compress"
	case "z1":
		return "application/x-zmachine"
	case "z2":
		return "application/x-zmachine"
	case "z3":
		return "application/x-zmachine"
	case "z4":
		return "application/x-zmachine"
	case "z5":
		return "application/x-zmachine"
	case "z6":
		return "application/x-zmachine"
	case "z7":
		return "application/x-zmachine"
	case "z8":
		return "application/x-zmachine"
	case "zaz":
		return "application/vnd.zzazz.deck+xml"
	case "zip":
		return "application/zip"
	case "zir":
		return "application/vnd.zul"
	case "zirz":
		return "application/vnd.zul"
	case "zmm":
		return "application/vnd.handheld-entertainment+xml"

	default:
		return ""
	}
	return ""
}