diff --git a/beego.go b/beego.go
index eaccea90..23924e44 100644
--- a/beego.go
+++ b/beego.go
@@ -76,6 +76,9 @@ func Run() {
 		}
 	}
 
+	//init mime
+	initMime()
+
 	if SessionOn {
 		GlobalSessions, _ = session.NewManager(SessionProvider,
 			SessionName,
diff --git a/mime.go b/mime.go
new file mode 100644
index 00000000..29ff9d63
--- /dev/null
+++ b/mime.go
@@ -0,0 +1,550 @@
+package beego
+
+import (
+	"mime"
+)
+
+var mimemaps map[string]string = map[string]string{
+	"3dm":         "x-world/x-3dmf",
+	"3dmf":        "x-world/x-3dmf",
+	"7z":          "application/x-7z-compressed",
+	"a":           "application/octet-stream",
+	"aab":         "application/x-authorware-bin",
+	"aam":         "application/x-authorware-map",
+	"aas":         "application/x-authorware-seg",
+	"abc":         "text/vndabc",
+	"ace":         "application/x-ace-compressed",
+	"acgi":        "text/html",
+	"afl":         "video/animaflex",
+	"ai":          "application/postscript",
+	"aif":         "audio/aiff",
+	"aifc":        "audio/aiff",
+	"aiff":        "audio/aiff",
+	"aim":         "application/x-aim",
+	"aip":         "text/x-audiosoft-intra",
+	"alz":         "application/x-alz-compressed",
+	"ani":         "application/x-navi-animation",
+	"aos":         "application/x-nokia-9000-communicator-add-on-software",
+	"aps":         "application/mime",
+	"arc":         "application/x-arc-compressed",
+	"arj":         "application/arj",
+	"art":         "image/x-jg",
+	"asf":         "video/x-ms-asf",
+	"asm":         "text/x-asm",
+	"asp":         "text/asp",
+	"asx":         "application/x-mplayer2",
+	"au":          "audio/basic",
+	"avi":         "video/x-msvideo",
+	"avs":         "video/avs-video",
+	"bcpio":       "application/x-bcpio",
+	"bin":         "application/mac-binary",
+	"bmp":         "image/bmp",
+	"boo":         "application/book",
+	"book":        "application/book",
+	"boz":         "application/x-bzip2",
+	"bsh":         "application/x-bsh",
+	"bz2":         "application/x-bzip2",
+	"bz":          "application/x-bzip",
+	"c++":         "text/plain",
+	"c":           "text/x-c",
+	"cab":         "application/vnd.ms-cab-compressed",
+	"cat":         "application/vndms-pkiseccat",
+	"cc":          "text/x-c",
+	"ccad":        "application/clariscad",
+	"cco":         "application/x-cocoa",
+	"cdf":         "application/cdf",
+	"cer":         "application/pkix-cert",
+	"cha":         "application/x-chat",
+	"chat":        "application/x-chat",
+	"chrt":        "application/vnd.kde.kchart",
+	"class":       "application/java",
+	"com":         "text/plain",
+	"conf":        "text/plain",
+	"cpio":        "application/x-cpio",
+	"cpp":         "text/x-c",
+	"cpt":         "application/mac-compactpro",
+	"crl":         "application/pkcs-crl",
+	"crt":         "application/pkix-cert",
+	"crx":         "application/x-chrome-extension",
+	"csh":         "text/x-scriptcsh",
+	"css":         "text/css",
+	"csv":         "text/csv",
+	"cxx":         "text/plain",
+	"dar":         "application/x-dar",
+	"dcr":         "application/x-director",
+	"deb":         "application/x-debian-package",
+	"deepv":       "application/x-deepv",
+	"def":         "text/plain",
+	"der":         "application/x-x509-ca-cert",
+	"dif":         "video/x-dv",
+	"dir":         "application/x-director",
+	"divx":        "video/divx",
+	"dl":          "video/dl",
+	"dmg":         "application/x-apple-diskimage",
+	"doc":         "application/msword",
+	"dot":         "application/msword",
+	"dp":          "application/commonground",
+	"drw":         "application/drafting",
+	"dump":        "application/octet-stream",
+	"dv":          "video/x-dv",
+	"dvi":         "application/x-dvi",
+	"dwf":         "drawing/x-dwf=(old)",
+	"dwg":         "application/acad",
+	"dxf":         "application/dxf",
+	"dxr":         "application/x-director",
+	"el":          "text/x-scriptelisp",
+	"elc":         "application/x-bytecodeelisp=(compiled=elisp)",
+	"eml":         "message/rfc822",
+	"env":         "application/x-envoy",
+	"eps":         "application/postscript",
+	"es":          "application/x-esrehber",
+	"etx":         "text/x-setext",
+	"evy":         "application/envoy",
+	"exe":         "application/octet-stream",
+	"f77":         "text/x-fortran",
+	"f90":         "text/x-fortran",
+	"f":           "text/x-fortran",
+	"fdf":         "application/vndfdf",
+	"fif":         "application/fractals",
+	"fli":         "video/fli",
+	"flo":         "image/florian",
+	"flv":         "video/x-flv",
+	"flx":         "text/vndfmiflexstor",
+	"fmf":         "video/x-atomic3d-feature",
+	"for":         "text/x-fortran",
+	"fpx":         "image/vndfpx",
+	"frl":         "application/freeloader",
+	"funk":        "audio/make",
+	"g3":          "image/g3fax",
+	"g":           "text/plain",
+	"gif":         "image/gif",
+	"gl":          "video/gl",
+	"gsd":         "audio/x-gsm",
+	"gsm":         "audio/x-gsm",
+	"gsp":         "application/x-gsp",
+	"gss":         "application/x-gss",
+	"gtar":        "application/x-gtar",
+	"gz":          "application/x-compressed",
+	"gzip":        "application/x-gzip",
+	"h":           "text/x-h",
+	"hdf":         "application/x-hdf",
+	"help":        "application/x-helpfile",
+	"hgl":         "application/vndhp-hpgl",
+	"hh":          "text/x-h",
+	"hlb":         "text/x-script",
+	"hlp":         "application/hlp",
+	"hpg":         "application/vndhp-hpgl",
+	"hpgl":        "application/vndhp-hpgl",
+	"hqx":         "application/binhex",
+	"hta":         "application/hta",
+	"htc":         "text/x-component",
+	"htm":         "text/html",
+	"html":        "text/html",
+	"htmls":       "text/html",
+	"htt":         "text/webviewhtml",
+	"htx":         "text/html",
+	"ice":         "x-conference/x-cooltalk",
+	"ico":         "image/x-icon",
+	"ics":         "text/calendar",
+	"icz":         "text/calendar",
+	"idc":         "text/plain",
+	"ief":         "image/ief",
+	"iefs":        "image/ief",
+	"iges":        "application/iges",
+	"igs":         "application/iges",
+	"ima":         "application/x-ima",
+	"imap":        "application/x-httpd-imap",
+	"inf":         "application/inf",
+	"ins":         "application/x-internett-signup",
+	"ip":          "application/x-ip2",
+	"isu":         "video/x-isvideo",
+	"it":          "audio/it",
+	"iv":          "application/x-inventor",
+	"ivr":         "i-world/i-vrml",
+	"ivy":         "application/x-livescreen",
+	"jam":         "audio/x-jam",
+	"jav":         "text/x-java-source",
+	"java":        "text/x-java-source",
+	"jcm":         "application/x-java-commerce",
+	"jfif-tbnl":   "image/jpeg",
+	"jfif":        "image/jpeg",
+	"jnlp":        "application/x-java-jnlp-file",
+	"jpe":         "image/jpeg",
+	"jpeg":        "image/jpeg",
+	"jpg":         "image/jpeg",
+	"jps":         "image/x-jps",
+	"js":          "application/javascript",
+	"json":        "application/json",
+	"jut":         "image/jutvision",
+	"kar":         "audio/midi",
+	"karbon":      "application/vnd.kde.karbon",
+	"kfo":         "application/vnd.kde.kformula",
+	"flw":         "application/vnd.kde.kivio",
+	"kml":         "application/vnd.google-earth.kml+xml",
+	"kmz":         "application/vnd.google-earth.kmz",
+	"kon":         "application/vnd.kde.kontour",
+	"kpr":         "application/vnd.kde.kpresenter",
+	"kpt":         "application/vnd.kde.kpresenter",
+	"ksp":         "application/vnd.kde.kspread",
+	"kwd":         "application/vnd.kde.kword",
+	"kwt":         "application/vnd.kde.kword",
+	"ksh":         "text/x-scriptksh",
+	"la":          "audio/nspaudio",
+	"lam":         "audio/x-liveaudio",
+	"latex":       "application/x-latex",
+	"lha":         "application/lha",
+	"lhx":         "application/octet-stream",
+	"list":        "text/plain",
+	"lma":         "audio/nspaudio",
+	"log":         "text/plain",
+	"lsp":         "text/x-scriptlisp",
+	"lst":         "text/plain",
+	"lsx":         "text/x-la-asf",
+	"ltx":         "application/x-latex",
+	"lzh":         "application/octet-stream",
+	"lzx":         "application/lzx",
+	"m1v":         "video/mpeg",
+	"m2a":         "audio/mpeg",
+	"m2v":         "video/mpeg",
+	"m3u":         "audio/x-mpegurl",
+	"m":           "text/x-m",
+	"man":         "application/x-troff-man",
+	"manifest":    "text/cache-manifest",
+	"map":         "application/x-navimap",
+	"mar":         "text/plain",
+	"mbd":         "application/mbedlet",
+	"mc$":         "application/x-magic-cap-package-10",
+	"mcd":         "application/mcad",
+	"mcf":         "text/mcf",
+	"mcp":         "application/netmc",
+	"me":          "application/x-troff-me",
+	"mht":         "message/rfc822",
+	"mhtml":       "message/rfc822",
+	"mid":         "application/x-midi",
+	"midi":        "application/x-midi",
+	"mif":         "application/x-frame",
+	"mime":        "message/rfc822",
+	"mjf":         "audio/x-vndaudioexplosionmjuicemediafile",
+	"mjpg":        "video/x-motion-jpeg",
+	"mm":          "application/base64",
+	"mme":         "application/base64",
+	"mod":         "audio/mod",
+	"moov":        "video/quicktime",
+	"mov":         "video/quicktime",
+	"movie":       "video/x-sgi-movie",
+	"mp2":         "audio/mpeg",
+	"mp3":         "audio/mpeg3",
+	"mp4":         "video/mp4",
+	"mpa":         "audio/mpeg",
+	"mpc":         "application/x-project",
+	"mpe":         "video/mpeg",
+	"mpeg":        "video/mpeg",
+	"mpg":         "video/mpeg",
+	"mpga":        "audio/mpeg",
+	"mpp":         "application/vndms-project",
+	"mpt":         "application/x-project",
+	"mpv":         "application/x-project",
+	"mpx":         "application/x-project",
+	"mrc":         "application/marc",
+	"ms":          "application/x-troff-ms",
+	"mv":          "video/x-sgi-movie",
+	"my":          "audio/make",
+	"mzz":         "application/x-vndaudioexplosionmzz",
+	"nap":         "image/naplps",
+	"naplps":      "image/naplps",
+	"nc":          "application/x-netcdf",
+	"ncm":         "application/vndnokiaconfiguration-message",
+	"nif":         "image/x-niff",
+	"niff":        "image/x-niff",
+	"nix":         "application/x-mix-transfer",
+	"nsc":         "application/x-conference",
+	"nvd":         "application/x-navidoc",
+	"o":           "application/octet-stream",
+	"oda":         "application/oda",
+	"odb":         "application/vnd.oasis.opendocument.database",
+	"odc":         "application/vnd.oasis.opendocument.chart",
+	"odf":         "application/vnd.oasis.opendocument.formula",
+	"odg":         "application/vnd.oasis.opendocument.graphics",
+	"odi":         "application/vnd.oasis.opendocument.image",
+	"odm":         "application/vnd.oasis.opendocument.text-master",
+	"odp":         "application/vnd.oasis.opendocument.presentation",
+	"ods":         "application/vnd.oasis.opendocument.spreadsheet",
+	"odt":         "application/vnd.oasis.opendocument.text",
+	"oga":         "audio/ogg",
+	"ogg":         "audio/ogg",
+	"ogv":         "video/ogg",
+	"omc":         "application/x-omc",
+	"omcd":        "application/x-omcdatamaker",
+	"omcr":        "application/x-omcregerator",
+	"otc":         "application/vnd.oasis.opendocument.chart-template",
+	"otf":         "application/vnd.oasis.opendocument.formula-template",
+	"otg":         "application/vnd.oasis.opendocument.graphics-template",
+	"oth":         "application/vnd.oasis.opendocument.text-web",
+	"oti":         "application/vnd.oasis.opendocument.image-template",
+	"otm":         "application/vnd.oasis.opendocument.text-master",
+	"otp":         "application/vnd.oasis.opendocument.presentation-template",
+	"ots":         "application/vnd.oasis.opendocument.spreadsheet-template",
+	"ott":         "application/vnd.oasis.opendocument.text-template",
+	"p10":         "application/pkcs10",
+	"p12":         "application/pkcs-12",
+	"p7a":         "application/x-pkcs7-signature",
+	"p7c":         "application/pkcs7-mime",
+	"p7m":         "application/pkcs7-mime",
+	"p7r":         "application/x-pkcs7-certreqresp",
+	"p7s":         "application/pkcs7-signature",
+	"p":           "text/x-pascal",
+	"part":        "application/pro_eng",
+	"pas":         "text/pascal",
+	"pbm":         "image/x-portable-bitmap",
+	"pcl":         "application/vndhp-pcl",
+	"pct":         "image/x-pict",
+	"pcx":         "image/x-pcx",
+	"pdb":         "chemical/x-pdb",
+	"pdf":         "application/pdf",
+	"pfunk":       "audio/make",
+	"pgm":         "image/x-portable-graymap",
+	"pic":         "image/pict",
+	"pict":        "image/pict",
+	"pkg":         "application/x-newton-compatible-pkg",
+	"pko":         "application/vndms-pkipko",
+	"pl":          "text/x-scriptperl",
+	"plx":         "application/x-pixclscript",
+	"pm4":         "application/x-pagemaker",
+	"pm5":         "application/x-pagemaker",
+	"pm":          "text/x-scriptperl-module",
+	"png":         "image/png",
+	"pnm":         "application/x-portable-anymap",
+	"pot":         "application/mspowerpoint",
+	"pov":         "model/x-pov",
+	"ppa":         "application/vndms-powerpoint",
+	"ppm":         "image/x-portable-pixmap",
+	"pps":         "application/mspowerpoint",
+	"ppt":         "application/mspowerpoint",
+	"ppz":         "application/mspowerpoint",
+	"pre":         "application/x-freelance",
+	"prt":         "application/pro_eng",
+	"ps":          "application/postscript",
+	"psd":         "application/octet-stream",
+	"pvu":         "paleovu/x-pv",
+	"pwz":         "application/vndms-powerpoint",
+	"py":          "text/x-scriptphyton",
+	"pyc":         "applicaiton/x-bytecodepython",
+	"qcp":         "audio/vndqcelp",
+	"qd3":         "x-world/x-3dmf",
+	"qd3d":        "x-world/x-3dmf",
+	"qif":         "image/x-quicktime",
+	"qt":          "video/quicktime",
+	"qtc":         "video/x-qtc",
+	"qti":         "image/x-quicktime",
+	"qtif":        "image/x-quicktime",
+	"ra":          "audio/x-pn-realaudio",
+	"ram":         "audio/x-pn-realaudio",
+	"rar":         "application/x-rar-compressed",
+	"ras":         "application/x-cmu-raster",
+	"rast":        "image/cmu-raster",
+	"rexx":        "text/x-scriptrexx",
+	"rf":          "image/vndrn-realflash",
+	"rgb":         "image/x-rgb",
+	"rm":          "application/vndrn-realmedia",
+	"rmi":         "audio/mid",
+	"rmm":         "audio/x-pn-realaudio",
+	"rmp":         "audio/x-pn-realaudio",
+	"rng":         "application/ringing-tones",
+	"rnx":         "application/vndrn-realplayer",
+	"roff":        "application/x-troff",
+	"rp":          "image/vndrn-realpix",
+	"rpm":         "audio/x-pn-realaudio-plugin",
+	"rt":          "text/vndrn-realtext",
+	"rtf":         "text/richtext",
+	"rtx":         "text/richtext",
+	"rv":          "video/vndrn-realvideo",
+	"s":           "text/x-asm",
+	"s3m":         "audio/s3m",
+	"s7z":         "application/x-7z-compressed",
+	"saveme":      "application/octet-stream",
+	"sbk":         "application/x-tbook",
+	"scm":         "text/x-scriptscheme",
+	"sdml":        "text/plain",
+	"sdp":         "application/sdp",
+	"sdr":         "application/sounder",
+	"sea":         "application/sea",
+	"set":         "application/set",
+	"sgm":         "text/x-sgml",
+	"sgml":        "text/x-sgml",
+	"sh":          "text/x-scriptsh",
+	"shar":        "application/x-bsh",
+	"shtml":       "text/x-server-parsed-html",
+	"sid":         "audio/x-psid",
+	"skd":         "application/x-koan",
+	"skm":         "application/x-koan",
+	"skp":         "application/x-koan",
+	"skt":         "application/x-koan",
+	"sit":         "application/x-stuffit",
+	"sitx":        "application/x-stuffitx",
+	"sl":          "application/x-seelogo",
+	"smi":         "application/smil",
+	"smil":        "application/smil",
+	"snd":         "audio/basic",
+	"sol":         "application/solids",
+	"spc":         "text/x-speech",
+	"spl":         "application/futuresplash",
+	"spr":         "application/x-sprite",
+	"sprite":      "application/x-sprite",
+	"spx":         "audio/ogg",
+	"src":         "application/x-wais-source",
+	"ssi":         "text/x-server-parsed-html",
+	"ssm":         "application/streamingmedia",
+	"sst":         "application/vndms-pkicertstore",
+	"step":        "application/step",
+	"stl":         "application/sla",
+	"stp":         "application/step",
+	"sv4cpio":     "application/x-sv4cpio",
+	"sv4crc":      "application/x-sv4crc",
+	"svf":         "image/vnddwg",
+	"svg":         "image/svg+xml",
+	"svr":         "application/x-world",
+	"swf":         "application/x-shockwave-flash",
+	"t":           "application/x-troff",
+	"talk":        "text/x-speech",
+	"tar":         "application/x-tar",
+	"tbk":         "application/toolbook",
+	"tcl":         "text/x-scripttcl",
+	"tcsh":        "text/x-scripttcsh",
+	"tex":         "application/x-tex",
+	"texi":        "application/x-texinfo",
+	"texinfo":     "application/x-texinfo",
+	"text":        "text/plain",
+	"tgz":         "application/gnutar",
+	"tif":         "image/tiff",
+	"tiff":        "image/tiff",
+	"tr":          "application/x-troff",
+	"tsi":         "audio/tsp-audio",
+	"tsp":         "application/dsptype",
+	"tsv":         "text/tab-separated-values",
+	"turbot":      "image/florian",
+	"txt":         "text/plain",
+	"uil":         "text/x-uil",
+	"uni":         "text/uri-list",
+	"unis":        "text/uri-list",
+	"unv":         "application/i-deas",
+	"uri":         "text/uri-list",
+	"uris":        "text/uri-list",
+	"ustar":       "application/x-ustar",
+	"uu":          "text/x-uuencode",
+	"uue":         "text/x-uuencode",
+	"vcd":         "application/x-cdlink",
+	"vcf":         "text/x-vcard",
+	"vcard":       "text/x-vcard",
+	"vcs":         "text/x-vcalendar",
+	"vda":         "application/vda",
+	"vdo":         "video/vdo",
+	"vew":         "application/groupwise",
+	"viv":         "video/vivo",
+	"vivo":        "video/vivo",
+	"vmd":         "application/vocaltec-media-desc",
+	"vmf":         "application/vocaltec-media-file",
+	"voc":         "audio/voc",
+	"vos":         "video/vosaic",
+	"vox":         "audio/voxware",
+	"vqe":         "audio/x-twinvq-plugin",
+	"vqf":         "audio/x-twinvq",
+	"vql":         "audio/x-twinvq-plugin",
+	"vrml":        "application/x-vrml",
+	"vrt":         "x-world/x-vrt",
+	"vsd":         "application/x-visio",
+	"vst":         "application/x-visio",
+	"vsw":         "application/x-visio",
+	"w60":         "application/wordperfect60",
+	"w61":         "application/wordperfect61",
+	"w6w":         "application/msword",
+	"wav":         "audio/wav",
+	"wb1":         "application/x-qpro",
+	"wbmp":        "image/vnd.wap.wbmp",
+	"web":         "application/vndxara",
+	"wiz":         "application/msword",
+	"wk1":         "application/x-123",
+	"wmf":         "windows/metafile",
+	"wml":         "text/vnd.wap.wml",
+	"wmlc":        "application/vnd.wap.wmlc",
+	"wmls":        "text/vnd.wap.wmlscript",
+	"wmlsc":       "application/vnd.wap.wmlscriptc",
+	"word":        "application/msword",
+	"wp5":         "application/wordperfect",
+	"wp6":         "application/wordperfect",
+	"wp":          "application/wordperfect",
+	"wpd":         "application/wordperfect",
+	"wq1":         "application/x-lotus",
+	"wri":         "application/mswrite",
+	"wrl":         "application/x-world",
+	"wrz":         "model/vrml",
+	"wsc":         "text/scriplet",
+	"wsrc":        "application/x-wais-source",
+	"wtk":         "application/x-wintalk",
+	"x-png":       "image/png",
+	"xbm":         "image/x-xbitmap",
+	"xdr":         "video/x-amt-demorun",
+	"xgz":         "xgl/drawing",
+	"xif":         "image/vndxiff",
+	"xl":          "application/excel",
+	"xla":         "application/excel",
+	"xlb":         "application/excel",
+	"xlc":         "application/excel",
+	"xld":         "application/excel",
+	"xlk":         "application/excel",
+	"xll":         "application/excel",
+	"xlm":         "application/excel",
+	"xls":         "application/excel",
+	"xlt":         "application/excel",
+	"xlv":         "application/excel",
+	"xlw":         "application/excel",
+	"xm":          "audio/xm",
+	"xml":         "text/xml",
+	"xmz":         "xgl/movie",
+	"xpix":        "application/x-vndls-xpix",
+	"xpm":         "image/x-xpixmap",
+	"xsr":         "video/x-amt-showrun",
+	"xwd":         "image/x-xwd",
+	"xyz":         "chemical/x-pdb",
+	"z":           "application/x-compress",
+	"zip":         "application/zip",
+	"zoo":         "application/octet-stream",
+	"zsh":         "text/x-scriptzsh",
+	"docx":        "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+	"docm":        "application/vnd.ms-word.document.macroEnabled.12",
+	"dotx":        "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
+	"dotm":        "application/vnd.ms-word.template.macroEnabled.12",
+	"xlsx":        "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+	"xlsm":        "application/vnd.ms-excel.sheet.macroEnabled.12",
+	"xltx":        "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
+	"xltm":        "application/vnd.ms-excel.template.macroEnabled.12",
+	"xlsb":        "application/vnd.ms-excel.sheet.binary.macroEnabled.12",
+	"xlam":        "application/vnd.ms-excel.addin.macroEnabled.12",
+	"pptx":        "application/vnd.openxmlformats-officedocument.presentationml.presentation",
+	"pptm":        "application/vnd.ms-powerpoint.presentation.macroEnabled.12",
+	"ppsx":        "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
+	"ppsm":        "application/vnd.ms-powerpoint.slideshow.macroEnabled.12",
+	"potx":        "application/vnd.openxmlformats-officedocument.presentationml.template",
+	"potm":        "application/vnd.ms-powerpoint.template.macroEnabled.12",
+	"ppam":        "application/vnd.ms-powerpoint.addin.macroEnabled.12",
+	"sldx":        "application/vnd.openxmlformats-officedocument.presentationml.slide",
+	"sldm":        "application/vnd.ms-powerpoint.slide.macroEnabled.12",
+	"thmx":        "application/vnd.ms-officetheme",
+	"onetoc":      "application/onenote",
+	"onetoc2":     "application/onenote",
+	"onetmp":      "application/onenote",
+	"onepkg":      "application/onenote",
+	"key":         "application/x-iwork-keynote-sffkey",
+	"kth":         "application/x-iwork-keynote-sffkth",
+	"nmbtemplate": "application/x-iwork-numbers-sfftemplate",
+	"numbers":     "application/x-iwork-numbers-sffnumbers",
+	"pages":       "application/x-iwork-pages-sffpages",
+	"template":    "application/x-iwork-pages-sfftemplate",
+	"xpi":         "application/x-xpinstall",
+	"oex":         "application/x-opera-extension",
+}
+
+func initMime() {
+	for k, v := range mimemaps {
+		mime.AddExtensionType(k, v)
+	}
+}