public string MIME_Type(string Extenstion)
{
if (Extenstion.Length == 0)
return String.Empty;
string resourceType = String.Empty;
// Handle the most common cases first, to avoid the long switch/case for speed optimization
if ((Extenstion == "TIF") || (Extenstion == "TIFF"))
return "image/tiff";
if ((Extenstion == "JPG") || (Extenstion == "JPEG"))
return "image/jpeg";
if ((Extenstion == "JP2") || (Extenstion == "JPEG2") || (Extenstion == "JPX"))
return "image/jp2";
if ((Extenstion == "TXT") || (Extenstion == "TEXT"))
return "text/plain";
if (Extenstion == "PRO")
return "text/x-pro";
switch (Extenstion)
{
case "3DM":
return "x-world/x-3dmf";
case "3DMF":
return "x-world/x-3dmf";
case "A":
return "application/octet-stream";
case "AAB":
return "application/x-authorware-bin";
case "AAM":
return "application/x-authorware-map";
case "AAS":
return "application/x-authorware-seg";
case "ABC":
return "text/vnd.abc";
case "ACGI":
return "text/html";
case "AFL":
return "video/animaflex";
case "AI":
return "application/postscript";
case "AIF":
return "audio/aiff";
case "AIFC":
return "audio/aiff";
case "AIFF":
return "audio/aiff";
case "AIM":
return "application/x-aim";
case "AIP":
return "text/x-audiosoft-intra";
case "ANI":
return "application/x-navi-animation";
case "AOS":
return "application/x-nokia-9000-communicator-add-on-software";
case "APS":
return "application/mime";
case "ARC":
return "application/octet-stream";
case "ARJ":
return "application/arj";
case "ART":
return "image/x-jg";
case "ASF":
return "video/x-ms-asf";
case "ASM":
return "text/x-asm";
case "ASP":
return "text/asp";
case "ASPX":
return "text/aspx";
case "ASX":
return "application/x-mplayer2";
case "AU":
return "audio/basic";
case "AVI":
return "video/avi";
case "AVS":
return "video/avs-video";
case "BCPIO":
return "application/x-bcpio";
case "BIN":
return "application/octet-stream";
case "BM":
return "image/bmp";
case "BMP":
return "image/bmp";
case "BOO":
return "application/book";
case "BOOK":
return "application/book";
case "BOZ":
return "application/x-bzip2";
case "BSH":
return "application/x-bsh";
case "BZ":
return "application/x-bzip";
case "BZ2":
return "application/x-bzip2";
case "C":
return "text/x-c";
case "C++":
return "text/x-c";
case "CAT":
return "application/vnd.ms-pki.seccat";
case "CC":
return "text/plain";
case "CCAD":
return "application/clariscad";
case "CCO":
return "application/x-cocoa";
case "CDF":
return "application/cdf";
case "CER":
return "application/x-x509-ca-cert";
case "CHA":
return "application/x-chat";
case "CHAT":
return "application/x-chat";
case "CLASS":
return "application/java";
case "COM":
return "application/octet-stream";
case "CONF":
return "text/plain";
case "CPIO":
return "application/x-cpio";
case "CPP":
return "text/x-c";
case "CPT":
return "application/x-compactpro";
case "CRL":
return "application/pkcs-crl";
case "CRT":
return "application/x-x509-ca-cert";
case "CSH":
return "text/x-script.csh";
case "CS":
return "text/x-csharp-source";
case "CSS":
return "text/css";
case "CXX":
return "text/plain";
case "DCR":
return "application/x-director";
case "DEEPV":
return "application/x-deepv";
case "DEF":
return "text/plain";
case "DER":
return "application/x-x509-ca-cert";
case "DIF":
return "video/x-dv";
case "DIR":
return "application/x-director";
case "DL":
return "video/dl";
case "DOC":
return "application/msword";
case "DOT":
return "application/msword";
case "DP":
return "application/commonground";
case "DRW":
return "application/drafting";
case "DUMP":
return "application/octet-stream";
case "DV":
return "video/x-dv";
case "DVI":
return "application/x-dvi";
case "DWF":
return "model/vnd.dwf";
case "DWG":
return "image/vnd.dwg";
case "DXF":
return "application/dxf";
case "DXR":
return "application/x-director";
case "EL":
return "text/x-script.elisp";
case "ELC":
return "application/x-elc";
case "ENV":
return "application/x-envoy";
case "EPS":
return "application/postscript";
case "ES":
return "application/x-esrehber";
case "ETX":
return "text/x-setext";
case "EVY":
return "application/envoy";
case "EXE":
return "application/octet-stream";
case "F":
return "text/x-fortran";
case "F77":
return "text/x-fortran";
case "F90":
return "text/x-fortran";
case "FDF":
return "application/vnd.fdf";
case "FIF":
return "application/fractals";
case "FLI":
return "video/fli";
case "FLO":
return "image/florian";
case "FLX":
return "text/vnd.fmi.flexstor";
case "FMF":
return "video/x-atomic3d-feature";
case "FOR":
return "text/x-fortran";
case "FPX":
return "image/vnd.fpx";
case "FRL":
return "application/freeloader";
case "FUNK":
return "audio/make";
case "G":
return "text/plain";
case "G3":
return "image/g3fax";
case "GIF":
return "image/gif";
case "GL":
return "video/gl";
case "GSD":
return "audio/x-gsm";
case "GSM":
return "audio/x-gsm";
case "GSP":
return "application/x-gsp";
case "GSS":
return "application/x-gss";
case "GTAR":
return "application/x-gtar";
case "GZ":
return "application/x-gzip";
case "GZIP":
return "application/x-gzip";
case "H":
return "text/x-h";
case "HDF":
return "application/x-hdf";
case "HELP":
return "application/x-helpfile";
case "HGL":
return "application/vnd.hp-hpgl";
case "HH":
return "text/plain";
case "HLB":
return "text/x-script";
case "HLP":
return "application/hlp";
case "HPG":
return "application/vnd.hp-hpgl";
case "HPGL":
return "application/vnd.hp-hpgl";
case "HQX":
return "application/binhex";
case "HTA":
return "application/hta";
case "HTC":
return "text/x-component";
case "HTM":
return "text/html";
case "HTML":
return "text/html";
case "HTMLS":
return "text/html";
case "HTT":
return "text/webviewhtml";
case "HTX":
return "text/html";
case "ICE":
return "x-conference/x-cooltalk";
case "ICO":
return "image/x-icon";
case "IDC":
return "text/plain";
case "IEF":
return "image/ief";
case "IEFS":
return "image/ief";
case "IGES":
return "model/iges";
case "IGS":
return "model/iges";
case "IMA":
return "application/x-ima";
case "IMAP":
return "application/x-httpd-imap";
case "INF":
return "application/inf";
case "INS":
return "application/x-internett-signup";
case "IP":
return "application/x-ip2";
case "ISU":
return "video/x-isvideo";
case "IT":
return "audio/it";
case "IV":
return "application/x-inventor";
case "IVR":
return "i-world/i-vrml";
case "IVY":
return "application/x-livescreen";
case "JAM":
return "audio/x-jam";
case "JAV":
return "text/x-java-source";
case "JAVA":
return "text/x-java-source";
case "JCM":
return "application/x-java-commerce";
case "JFIF":
return "image/jpeg";
case "JFIF-TBNL":
return "image/jpeg";
case "JPE":
return "image/jpeg";
case "JPEG":
return "image/jpeg";
case "JPG":
return "image/jpeg";
case "JPS":
return "image/x-jps";
case "JS":
return "application/x-javascript";
case "JUT":
return "image/jutvision";
case "KAR":
return "audio/midi";
case "KSH":
return "application/x-ksh";
case "LA":
return "audio/nspaudio";
case "LAM":
return "audio/x-liveaudio";
case "LATEX":
return "application/x-latex";
case "LHA":
return "application/octet-stream";
case "LHX":
return "application/octet-stream";
case "LIST":
return "text/plain";
case "LMA":
return "audio/nspaudio";
case "LOG":
return "text/plain";
case "LSP":
return "application/x-lisp";
case "LST":
return "text/plain";
case "LTX":
return "application/x-latex";
case "LZH":
return "application/x-lzh";
case "LZX":
return "application/lzx";
case "M":
return "text/plain";
case "M1V":
return "video/mpeg";
case "M2A":
return "audio/mpeg";
case "M2V":
return "video/mpeg";
case "M3U":
return "audio/x-mpequrl";
case "MAN":
return "application/x-troff-man";
case "MAP":
return "application/x-navimap";
case "MAR":
return "text/plain";
case "MBD":
return "application/mbedlet";
case "MC$":
return "application/x-magic-cap-package-1.0";
case "MCD":
return "application/mcad";
case "MCF":
return "text/mcf";
case "MCP":
return "application/netmc";
case "ME":
return "application/x-troff-me";
case "MHT":
return "message/rfc822";
case "MHTML":
return "message/rfc822";
case "MID":
return "audio/midi";
case "MIDI":
return "audio/midi";
case "MIF":
return "application/x-mif";
case "MIME":
return "message/rfc822";
case "MJF":
return "audio/x-vnd.audioexplosion.mjuicemediafile";
case "MJPG":
return "video/x-motion-jpeg";
case "MM":
return "application/x-meme";
case "MME":
return "application/base64";
case "MOD":
return "audio/mod";
case "MOOV":
return "video/quicktime";
case "MOV":
return "video/quicktime";
case "MOVIE":
return "video/x-sgi-movie";
case "MP2":
case "MPG":
case "MPA":
return resourceType.ToUpper().IndexOf("VIDEO") < 0 ? "audio/mpeg" : "video/mpeg";
case "MP3":
return resourceType.ToUpper().IndexOf("VIDEO") < 0 ? "audio/mpeg3" : "video/mpeg";
case "MPC":
return "application/x-project";
case "MPE":
return "video/mpeg";
case "MPEG":
return "video/mpeg";
case "MPGA":
return "audio/mpeg";
case "MPP":
return "application/vnd.ms-project";
case "MPT":
return "application/x-project";
case "MPV":
return "application/x-project";
case "MPX":
return "application/x-project";
case "MRC":
return "application/marc";
case "MS":
return "application/x-troff-ms";
case "MV":
return "video/x-sgi-movie";
case "MY":
return "audio/make";
case "MZZ":
return "application/x-vnd.audioexplosion.mzz";
case "NAP":
return "image/naplps";
case "NAPLPS":
return "image/naplps";
case "NC":
return "application/x-netcdf";
case "NCM":
return "application/vnd.nokia.configuration-message";
case "NIF":
return "image/x-niff";
case "NIFF":
return "image/x-niff";
case "NIX":
return "application/x-mix-transfer";
case "NSC":
return "application/x-conference";
case "NVD":
return "application/x-navidoc";
case "O":
return "application/octet-stream";
case "ODA":
return "application/oda";
case "OMC":
return "application/x-omc";
case "OMCD":
return "application/x-omcdatamaker";
case "OMCR":
return "application/x-omcregerator";
case "P":
return "text/x-pascal";
case "P10":
return "application/pkcs10";
case "P12":
return "application/pkcs-12";
case "P7A":
return "application/x-pkcs7-signature";
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 "PART":
return "application/pro_eng";
case "PAS":
return "text/pascal";
case "PBM":
return "image/x-portable-bitmap";
case "PCL":
return "application/x-pcl";
case "PCT":
return "image/x-pict";
case "PCX":
return "image/x-pcx";
case "PDB":
return "chemical/x-pdb";
case "PDF":
return "application/pdf";
case "PFUNK":
return "audio/make";
case "PGM":
return "image/x-portable-graymap";
case "PIC":
return "image/pict";
case "PICT":
return "image/pict";
case "PKG":
return "application/x-newton-compatible-pkg";
case "PKO":
return "application/vnd.ms-pki.pko";
case "PL":
return "text/x-script.perl";
case "PLX":
return "application/x-pixclscript";
case "PM":
return "text/x-script.perl-module";
case "PM4":
return "application/x-pagemaker";
case "PM5":
return "application/x-pagemaker";
case "PNG":
return "image/png";
case "PNM":
return "application/x-portable-anymap";
case "POT":
return "application/mspowerpoint";
case "POV":
return "model/x-pov";
case "PPA":
return "application/vnd.ms-powerpoint";
case "PPM":
return "image/x-portable-pixmap";
case "PPS":
return "application/mspowerpoint";
case "PPT":
return "application/mspowerpoint";
case "PPZ":
return "application/mspowerpoint";
case "PRE":
return "application/x-freelance";
case "PRT":
return "application/pro_eng";
case "PS":
return "application/postscript";
case "PSD":
return "application/octet-stream";
case "PVU":
return "paleovu/x-pv";
case "PWZ":
return "application/vnd.ms-powerpoint";
case "PY":
return "text/x-script.phyton";
case "PYC":
return "applicaiton/x-bytecode.python";
case "QCP":
return "audio/vnd.qcelp";
case "QD3":
return "x-world/x-3dmf";
case "QD3D":
return "x-world/x-3dmf";
case "QIF":
return "image/x-quicktime";
case "QT":
return "video/quicktime";
case "QTC":
return "video/x-qtc";
case "QTI":
return "image/x-quicktime";
case "QTIF":
return "image/x-quicktime";
case "RA":
return "audio/x-realaudio";
case "RAM":
return "audio/x-pn-realaudio";
case "RAS":
return "image/cmu-raster";
case "RAST":
return "image/cmu-raster";
case "REXX":
return "text/x-script.rexx";
case "RF":
return "image/vnd.rn-realflash";
case "RGB":
return "image/x-rgb";
case "RM":
return "audio/x-pn-realaudio";
case "RMI":
return "audio/mid";
case "RMM":
return "audio/x-pn-realaudio";
case "RMP":
return "audio/x-pn-realaudio";
case "RNG":
return "application/ringing-tones";
case "RNX":
return "application/vnd.rn-realplayer";
case "ROFF":
return "application/x-troff";
case "RP":
return "image/vnd.rn-realpix";
case "RPM":
return "audio/x-pn-realaudio-plugin";
case "RT":
return "text/richtext";
case "RTF":
return "text/richtext";
case "RTX":
return "text/richtext";
case "RV":
return "video/vnd.rn-realvideo";
case "S":
return "text/x-asm";
case "S3M":
return "audio/s3m";
case "SAVEME":
return "application/octet-stream";
case "SBK":
return "application/x-tbook";
case "SCM":
return "text/x-script.scheme";
case "SDML":
return "text/plain";
case "SDP":
return "application/sdp";
case "SDR":
return "application/sounder";
case "SEA":
return "application/sea";
case "SET":
return "application/set";
case "SGM":
return "text/sgml";
case "SGML":
return "text/sgml";
case "SH":
return "text/x-script.sh";
case "SHAR":
return "application/x-shar";
case "SHTML":
return "text/x-server-parsed-html";
case "SID":
return "audio/x-psid";
case "SIT":
return "application/x-stuffit";
case "SKD":
return "application/x-koan";
case "SKM":
return "application/x-koan";
case "SKP":
return "application/x-koan";
case "SKT":
return "application/x-koan";
case "SL":
return "application/x-seelogo";
case "SMI":
return "application/smil";
case "SMIL":
return "application/smil";
case "SND":
return "audio/basic";
case "SOL":
return "application/solids";
case "SPC":
return "application/x-pkcs7-certificates";
case "SPL":
return "application/futuresplash";
case "SPR":
return "application/x-sprite";
case "SPRITE":
return "application/x-sprite";
case "SRC":
return "application/x-wais-source";
case "SSI":
return "text/x-server-parsed-html";
case "SSM":
return "application/streamingmedia";
case "SST":
return "application/vnd.ms-pki.certstore";
case "STEP":
return "application/step";
case "STL":
return "application/sla";
case "STP":
return "application/step";
case "SV4CPIO":
return "application/x-sv4cpio";
case "SV4CRC":
return "application/x-sv4crc";
case "SVF":
return "image/vnd.dwg";
case "SVR":
return "application/x-world";
case "SWF":
return "application/x-shockwave-flash";
case "T":
return "application/x-troff";
case "TALK":
return "text/x-speech";
case "TAR":
return "application/x-tar";
case "TBK":
return "application/toolbook";
case "TCL":
return "application/x-tcl";
case "TCSH":
return "text/x-script.tcsh";
case "TEX":
return "application/x-tex";
case "TEXI":
return "application/x-texinfo";
case "TEXINFO":
return "application/x-texinfo";
case "TEXT":
return "text/plain";
case "TGZ":
return "application/gnutar";
case "TIF":
return "image/tiff";
case "TIFF":
return "image/tiff";
case "TR":
return "application/x-troff";
case "TSI":
return "audio/tsp-audio";
case "TSP":
return "audio/tsplayer";
case "TSV":
return "text/tab-separated-values";
case "TURBOT":
return "image/florian";
case "TXT":
return "text/plain";
case "UIL":
return "text/x-uil";
case "UNI":
return "text/uri-list";
case "UNIS":
return "text/uri-list";
case "UNV":
return "application/i-deas";
case "URI":
return "text/uri-list";
case "URIS":
return "text/uri-list";
case "USTAR":
return "application/x-ustar";
case "UU":
return "text/x-uuencode";
case "UUE":
return "text/x-uuencode";
case "VCD":
return "application/x-cdlink";
case "VCS":
return "text/x-vcalendar";
case "VDA":
return "application/vda";
case "VDO":
return "video/vdo";
case "VEW":
return "application/groupwise";
case "VIV":
return "video/vivo";
case "VIVO":
return "video/vivo";
case "VMD":
return "application/vocaltec-media-desc";
case "VMF":
return "application/vocaltec-media-file";
case "VOC":
return "audio/voc";
case "VOS":
return "video/vosaic";
case "VOX":
return "audio/voxware";
case "VQE":
return "audio/x-twinvq-plugin";
case "VQF":
return "audio/x-twinvq";
case "VQL":
return "audio/x-twinvq-plugin";
case "VRML":
return "model/vrml";
case "VRT":
return "x-world/x-vrt";
case "VSD":
return "application/x-visio";
case "VST":
return "application/x-visio";
case "VSW":
return "application/x-visio";
case "W60":
return "application/wordperfect6.0";
case "W61":
return "application/wordperfect6.1";
case "W6W":
return "application/msword";
case "WAV":
return "audio/wav";
case "WB1":
return "application/x-qpro";
case "WBMP":
return "image/vnd.wap.wbmp";
case "WEB":
return "application/vnd.xara";
case "WIZ":
return "application/msword";
case "WK1":
return "application/x-123";
case "WMF":
return "windows/metafile";
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 "WORD":
return "application/msword";
case "WP":
return "application/wordperfect";
case "WP5":
return "application/wordperfect";
case "WP6":
return "application/wordperfect";
case "WPD":
return "application/wordperfect";
case "WQ1":
return "application/x-lotus";
case "WRI":
return "application/mswrite";
case "WRL":
return "model/vrml";
case "WRZ":
return "model/vrml";
case "WSC":
return "text/scriplet";
case "WSRC":
return "application/x-wais-source";
case "WTK":
return "application/x-wintalk";
case "XBM":
return "image/xbm";
case "XDR":
return "video/x-amt-demorun";
case "XGZ":
return "xgl/drawing";
case "XIF":
return "image/vnd.xiff";
case "XL":
return "application/excel";
case "XLA":
return "application/excel";
case "XLB":
return "application/excel";
case "XLC":
return "application/excel";
case "XLD":
return "application/excel";
case "XLK":
return "application/excel";
case "XLL":
return "application/excel";
case "XLM":
return "application/excel";
case "XLS":
return "application/excel";
case "XLT":
return "application/excel";
case "XLV":
return "application/excel";
case "XLW":
return "application/excel";
case "XM":
return "audio/xm";
case "XML":
return "text/xml";
case "XMZ":
return "xgl/movie";
case "XPIX":
return "application/x-vnd.ls-xpix";
case "XPM":
return "image/xpm";
case "X-PNG":
return "image/png";
case "XSR":
return "video/x-amt-showrun";
case "XWD":
return "image/x-xwindowdump";
case "XYZ":
return "chemical/x-pdb";
case "Z":
return "application/x-compressed";
case "ZIP":
return "application/zip";
case "ZOO":
return "application/octet-stream";
case "ZSH":
return "text/x-script.zsh";
case "XLSX":
return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
case "XLTX":
return "application/vnd.openxmlformats-officedocument.spreadsheetml.template";
case "POTX":
return "application/vnd.openxmlformats-officedocument.presentationml.template";
case "PPSX":
return "application/vnd.openxmlformats-officedocument.presentationml.slideshow";
case "PPTX":
return "application/vnd.openxmlformats-officedocument.presentationml.presentation";
case "SLDX":
return "application/vnd.openxmlformats-officedocument.presentationml.slide";
case "DOCX":
return "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
case "DOTX":
return "application/vnd.openxmlformats-officedocument.wordprocessingml.template";
case "XLAM":
return "application/vnd.ms-excel.addin.macroEnabled.12";
case "XLSB":
return "application/vnd.ms-excel.sheet.binary.macroEnabled.12";
default:
return "unknown/x-" + Extenstion.ToLower();
}
}
