<?php

// MIME对象
class dzz_mime{
	/**
	 * MIME map of the file extensions.
	 */
	protected static $mime_maps = array(
			'ez' => 'application/andrew-inset',
			'aw' => 'application/applixware',
			'atom' => 'application/atom+xml',
			'atomcat' => 'application/atomcat+xml',
			'atomsvc' => 'application/atomsvc+xml',
			'ccxml' => 'application/ccxml+xml',
			'cu' => 'application/cu-seeme',
			'davmount' => 'application/davmount+xml',
			'dssc' => 'application/dssc+der',
			'xdssc' => 'application/dssc+xml',
			'ecma' => 'application/ecmascript',
			'emma' => 'application/emma+xml',
			'epub' => 'application/epub+zip',
			'pfr' => 'application/font-tdpfr',
			'stk' => 'application/hyperstudio',
			'ipfix' => 'application/ipfix',
			'jar' => 'application/java-archive',
			'ser' => 'application/java-serialized-object',
			'class' => 'application/java-vm',
			'js' => 'application/javascript',
			'json' => 'application/json',
			'lostxml' => 'application/lost+xml',
			'hqx' => 'application/mac-binhex40',
			'cpt' => 'application/mac-compactpro',
			'mrc' => 'application/marc',
			'mb' => 'application/mathematica',
			'ma' => 'application/mathematica',
			'nb' => 'application/mathematica',
			'mathml' => 'application/mathml+xml',
			'mbox' => 'application/mbox',
			'mscml' => 'application/mediaservercontrol+xml',
			'mp4s' => 'application/mp4',
			'dot' => 'application/msword',
			'doc' => 'application/msword',
			'mxf' => 'application/mxf',
			'oda' => 'application/oda',
			'opf' => 'application/oebps-package+xml',
			'ogx' => 'application/ogg',
			'onepkg' => 'application/onenote',
			'onetoc' => 'application/onenote',
			'onetoc2' => 'application/onenote',
			'onetmp' => 'application/onenote',
			'xer' => 'application/patch-ops-error+xml',
			'pdf' => 'application/pdf',
			'pgp' => 'application/pgp-encrypted',
			'sig' => 'application/pgp-signature',
			'asc' => 'application/pgp-signature',
			'prf' => 'application/pics-rules',
			'p10' => 'application/pkcs10',
			'p7c' => 'application/pkcs7-mime',
			'p7m'=> 'application/pkcs7-mime',
			'p7s' => 'application/pkcs7-signature',
			'cer' => 'application/pkix-cert',
			'crl' => 'application/pkix-crl',
			'pkipath' => 'application/pkix-pkipath',
			'pki' => 'application/pkixcmp',
			'pls' => 'application/pls+xml',
			'ps' => 'application/postscript',
			'ai' => 'application/postscript',
			'eps' => 'application/postscript',
			'cww' => 'application/prs.cww',
			'rdf' => 'application/rdf+xml',
			'rif' => 'application/reginfo+xml',
			'rnc' => 'application/relax-ng-compact-syntax',
			'rl' => 'application/resource-lists+xml',
			'rld' => 'application/resource-lists-diff+xml',
			'rs' => 'application/rls-services+xml',
			'rsd' => 'application/rsd+xml',
			'rss' => 'application/rss+xml',
			'rtf' => 'application/rtf',
			'sbml' => 'application/sbml+xml',
			'scq' => 'application/scvp-cv-request',
			'scs' => 'application/scvp-cv-response',
			'spq' => 'application/scvp-vp-request',
			'spp' => 'application/scvp-vp-response',
			'sdp' => 'application/sdp',
			'setpay' => 'application/set-payment-initiation',
			'setreg' => 'application/set-registration-initiation',
			'shf' => 'application/shf+xml',
			'smil' => 'application/smil+xml',
			'smi' => 'application/smil+xml',
			'rq' => 'application/sparql-query',
			'srx' => 'application/sparql-results+xml',
			'gram' => 'application/srgs',
			'grxml' => 'application/srgs+xml',
			'ssml' => 'application/ssml+xml',
			'plb' => 'application/vnd.3gpp.pic-bw-large',
			'psb' => 'application/vnd.3gpp.pic-bw-small',
			'pvb' => 'application/vnd.3gpp.pic-bw-var',
			'tcap' => 'application/vnd.3gpp2.tcap',
			'pwn' => 'application/vnd.3m.post-it-notes',
			'aso' => 'application/vnd.accpac.simply.aso',
			'imp' => 'application/vnd.accpac.simply.imp',
			'acu' => 'application/vnd.acucobol',
			'acutc' => 'application/vnd.acucorp',
			'atc' => 'application/vnd.acucorp',
			'air' => 'application/vnd.adobe.air-application-installer-package+zip',
			'xdp' => 'application/vnd.adobe.xdp+xml',
			'xfdf' => 'application/vnd.adobe.xfdf',
			'azf' => 'application/vnd.airzip.filesecure.azf',
			'azs' => 'application/vnd.airzip.filesecure.azs',
			'azw' => 'application/vnd.amazon.ebook',
			'acc' => 'application/vnd.americandynamics.acc',
			'ami' => 'application/vnd.amiga.ami',
			'apk' => 'application/vnd.android.package-archive',
			'cii' => 'application/vnd.anser-web-certificate-issue-initiation',
			'fti' => 'application/vnd.anser-web-funds-transfer-initiation',
			'atx' => 'application/vnd.antix.game-component',
			'mpkg' => 'application/vnd.apple.installer+xml',
			'm3u8' => 'application/vnd.apple.mpegurl',
			'swi' => 'application/vnd.aristanetworks.swi',
			'aep' => 'application/vnd.audiograph',
			'mpm' => 'application/vnd.blueice.multipass',
			'bmi' => 'application/vnd.bmi',
			'rep' => 'application/vnd.businessobjects',
			'cdxml' => 'application/vnd.chemdraw+xml',
			'mmd' => 'application/vnd.chipnuts.karaoke-mmd',
			'cdy' => 'application/vnd.cinderella',
			'cla' => 'application/vnd.claymore',
			'rp9' => 'application/vnd.cloanto.rp9',
			'c4u' => 'application/vnd.clonk.c4group',
			'c4g' => 'application/vnd.clonk.c4group',
			'c4d' => 'application/vnd.clonk.c4group',
			'c4f' => 'application/vnd.clonk.c4group',
			'c4p' => 'application/vnd.clonk.c4group',
			'csp' => 'application/vnd.commonspace',
			'cdbcmsg' => 'application/vnd.contact.cmsg',
			'cmc' => 'application/vnd.cosmocaller',
			'clkx' => 'application/vnd.crick.clicker',
			'clkk' => 'application/vnd.crick.clicker.keyboard',
			'clkp' => 'application/vnd.crick.clicker.palette',
			'clkt' => 'application/vnd.crick.clicker.template',
			'clkw' => 'application/vnd.crick.clicker.wordbank',
			'wbs' => 'application/vnd.criticaltools.wbs+xml',
			'pml' => 'application/vnd.ctc-posml',
			'ppd' => 'application/vnd.cups-ppd',
			'car' => 'application/vnd.curl.car',
			'pcurl' => 'application/vnd.curl.pcurl',
			'rdz' => 'application/vnd.data-vision.rdz',
			'fe_launch' => 'application/vnd.denovo.fcselayout-link',
			'dna' => 'application/vnd.dna',
			'mlp' => 'application/vnd.dolby.mlp',
			'dpg' => 'application/vnd.dpgraph',
			'dfac' => 'application/vnd.dreamfactory',
			'geo' => 'application/vnd.dynageo',
			'mag' => 'application/vnd.ecowin.chart',
			'nml' => 'application/vnd.enliven',
			'esf' => 'application/vnd.epson.esf',
			'msf' => 'application/vnd.epson.msf',
			'qam' => 'application/vnd.epson.quickanime',
			'slt' => 'application/vnd.epson.salt',
			'ssf' => 'application/vnd.epson.ssf',
			'et3' => 'application/vnd.eszigno3+xml',
			'es3' => 'application/vnd.eszigno3+xml',
			'ez2' => 'application/vnd.ezpix-album',
			'ez3' => 'application/vnd.ezpix-package',
			'fdf' => 'application/vnd.fdf',
			'mseed' => 'application/vnd.fdsn.mseed',
			'dataless' => 'application/vnd.fdsn.seed',
			'seed' => 'application/vnd.fdsn.seed',
			'gph' => 'application/vnd.flographit',
			'ftc' => 'application/vnd.fluxtime.clip',
			'book' => 'application/vnd.framemaker',
			'fm' => 'application/vnd.framemaker',
			'frame' => 'application/vnd.framemaker',
			'maker' => 'application/vnd.framemaker',
			'fnc' => 'application/vnd.frogans.fnc',
			'ltf' => 'application/vnd.frogans.ltf',
			'fsc' => 'application/vnd.fsc.weblaunch',
			'oas' => 'application/vnd.fujitsu.oasys',
			'oa2' => 'application/vnd.fujitsu.oasys2',
			'oa3' => 'application/vnd.fujitsu.oasys3',
			'fg5' => 'application/vnd.fujitsu.oasysgp',
			'bh2' => 'application/vnd.fujitsu.oasysprs',
			'ddd' => 'application/vnd.fujixerox.ddd',
			'xdw' => 'application/vnd.fujixerox.docuworks',
			'xbd' => 'application/vnd.fujixerox.docuworks.binder',
			'fzs' => 'application/vnd.fuzzysheet',
			'txd' => 'application/vnd.genomatix.tuxedo',
			'ggb' => 'application/vnd.geogebra.file',
			'ggt' => 'application/vnd.geogebra.tool',
			'gre' => 'application/vnd.geometry-explorer',
			'gex' => 'application/vnd.geometry-explorer',
			'gxt' => 'application/vnd.geonext',
			'g2w' => 'application/vnd.geoplan',
			'g3w' => 'application/vnd.geospace',
			'gmx' => 'application/vnd.gmx',
			'kml' => 'application/vnd.google-earth.kml+xml',
			'kmz' => 'application/vnd.google-earth.kmz',
			'gqs' => 'application/vnd.grafeq',
			'gqf' => 'application/vnd.grafeq',
			'gac' => 'application/vnd.groove-account',
			'ghf' => 'application/vnd.groove-help',
			'gim' => 'application/vnd.groove-identity-message',
			'grv' => 'application/vnd.groove-injector',
			'gtm' => 'application/vnd.groove-tool-message',
			'tpl' => 'application/vnd.groove-tool-template',
			'vcg' => 'application/vnd.groove-vcard',
			'zmm' => 'application/vnd.handheld-entertainment+xml',
			'hbci' => 'application/vnd.hbci',
			'les' => 'application/vnd.hhe.lesson-player',
			'hpgl' => 'application/vnd.hp-hpgl',
			'hpid' => 'application/vnd.hp-hpid',
			'hps' => 'application/vnd.hp-hps',
			'jlt' => 'application/vnd.hp-jlyt',
			'pcl' => 'application/vnd.hp-pcl',
			'pclxl' => 'application/vnd.hp-pclxl',
			'sfd-hdstx'=>'application/vnd.hydrostatix.sof-data',
			'x3d' => 'application/vnd.hzn-3d-crossword',
			'mpy' => 'application/vnd.ibm.minipay',
			'list3820' => 'application/vnd.ibm.modcap',
			'afp' => 'application/vnd.ibm.modcap',
			'listafp' => 'application/vnd.ibm.modcap',
			'irm' => 'application/vnd.ibm.rights-management',
			'sc' => 'application/vnd.ibm.secure-container',
			'icm' => 'application/vnd.iccprofile',
			'icc' => 'application/vnd.iccprofile',
			'igl' => 'application/vnd.igloader',
			'ivp' => 'application/vnd.immervision-ivp',
			'ivu' => 'application/vnd.immervision-ivu',
			'xpx' => 'application/vnd.intercon.formnet',
			'xpw' => 'application/vnd.intercon.formnet',
			'qbo' => 'application/vnd.intu.qbo',
			'qfx' => 'application/vnd.intu.qfx',
			'rcprofile' => 'application/vnd.ipunplugged.rcprofile',
			'irp' => 'application/vnd.irepository.package+xml',
			'xpr' => 'application/vnd.is-xpr',
			'jam' => 'application/vnd.jam',
			'rms' => 'application/vnd.jcp.javame.midlet-rms',
			'jisp' => 'application/vnd.jisp',
			'joda' => 'application/vnd.joost.joda-archive',
			'ktr' => 'application/vnd.kahootz',
			'ktz' => 'application/vnd.kahootz',
			'karbon' => 'application/vnd.kde.karbon',
			'chrt' => 'application/vnd.kde.kchart',
			'kfo' => 'application/vnd.kde.kformula',
			'flw' => 'application/vnd.kde.kivio',
			'kon' => 'application/vnd.kde.kontour',
			'kpt' => 'application/vnd.kde.kpresenter',
			'kpr' => 'application/vnd.kde.kpresenter',
			'ksp' => 'application/vnd.kde.kspread',
			'kwt' => 'application/vnd.kde.kword',
			'kwd' => 'application/vnd.kde.kword',
			'htke' => 'application/vnd.kenameaapp',
			'kia' => 'application/vnd.kidspiration',
			'knp' => 'application/vnd.kinar',
			'kne' => 'application/vnd.kinar',
			'skm' => 'application/vnd.koan',
			'skp' => 'application/vnd.koan',
			'skd' => 'application/vnd.koan',
			'skt' => 'application/vnd.koan',
			'sse' => 'application/vnd.kodak-descriptor',
			'lbd' => 'application/vnd.llamagraphics.life-balance.desktop',
			'lbe' => 'application/vnd.llamagraphics.life-balance.exchange+xml',
			'123' => 'application/vnd.lotus-1-2-3',
			'apr' => 'application/vnd.lotus-approach',
			'pre' => 'application/vnd.lotus-freelance',
			'nsf' => 'application/vnd.lotus-notes',
			'org' => 'application/vnd.lotus-organizer',
			'scm' => 'application/vnd.lotus-screencam',
			'lwp' => 'application/vnd.lotus-wordpro',
			'portpkg' => 'application/vnd.macports.portpkg',
			'mcd' => 'application/vnd.mcd',
			'mc1' => 'application/vnd.medcalcdata',
			'cdkey' => 'application/vnd.mediastation.cdkey',
			'mwf' => 'application/vnd.mfer',
			'mfm' => 'application/vnd.mfmp',
			'flo' => 'application/vnd.micrografx.flo',
			'igx' => 'application/vnd.micrografx.igx',
			'mif' => 'application/vnd.mif',
			'daf' => 'application/vnd.mobius.daf',
			'dis' => 'application/vnd.mobius.dis',
			'mbk' => 'application/vnd.mobius.mbk',
			'mqy' => 'application/vnd.mobius.mqy',
			'msl' => 'application/vnd.mobius.msl',
			'plc' => 'application/vnd.mobius.plc',
			'txf' => 'application/vnd.mobius.txf',
			'mpn' => 'application/vnd.mophun.application',
			'mpc' => 'application/vnd.mophun.certificate',
			'xul' => 'application/vnd.mozilla.xul+xml',
			'cil' => 'application/vnd.ms-artgalry',
			'cab' => 'application/vnd.ms-cab-compressed',
			'xlw' => 'application/vnd.ms-excel',
			'xls' => 'application/vnd.ms-excel',
			'xlm' => 'application/vnd.ms-excel',
			'xla' => 'application/vnd.ms-excel',
			'xlc' => 'application/vnd.ms-excel',
			'xlt' => 'application/vnd.ms-excel',
			'xlam' => 'application/vnd.ms-excel.addin.macroenabled.12',
			'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroenabled.12',
			'xlsm' => 'application/vnd.ms-excel.sheet.macroenabled.12',
			'xltm' => 'application/vnd.ms-excel.template.macroenabled.12',
			'eot' => 'application/vnd.ms-fontobject',
			'chm' => 'application/vnd.ms-htmlhelp',
			'ims' => 'application/vnd.ms-ims',
			'lrm' => 'application/vnd.ms-lrm',
			'cat' => 'application/vnd.ms-pki.seccat',
			'stl' => 'application/vnd.ms-pki.stl',
			'pot' => 'application/vnd.ms-powerpoint',
			'ppt' => 'application/vnd.ms-powerpoint',
			'pps' => 'application/vnd.ms-powerpoint',
			'ppam' => 'application/vnd.ms-powerpoint.addin.macroenabled.12',
			'pptm' => 'application/vnd.ms-powerpoint.presentation.macroenabled.12',
			'sldm' => 'application/vnd.ms-powerpoint.slide.macroenabled.12',
			'ppsm' => 'application/vnd.ms-powerpoint.slideshow.macroenabled.12',
			'potm' => 'application/vnd.ms-powerpoint.template.macroenabled.12',
			'mpt' => 'application/vnd.ms-project',
			'mpp' => 'application/vnd.ms-project',
			'docm' => 'application/vnd.ms-word.document.macroenabled.12',
			'dotm' => 'application/vnd.ms-word.template.macroenabled.12',
			'wdb' => 'application/vnd.ms-works',
			'wps' => 'application/vnd.ms-works',
			'wks' => 'application/vnd.ms-works',
			'wcm' => 'application/vnd.ms-works',
			'wpl' => 'application/vnd.ms-wpl',
			'xps' => 'application/vnd.ms-xpsdocument',
			'mseq' => 'application/vnd.mseq',
			'mus' => 'application/vnd.musician',
			'msty' => 'application/vnd.muvee.style',
			'nlu' => 'application/vnd.neurolanguage.nlu',
			'nnd' => 'application/vnd.noblenet-directory',
			'nns' => 'application/vnd.noblenet-sealer',
			'nnw' => 'application/vnd.noblenet-web',
			'ngdat' => 'application/vnd.nokia.n-gage.data',
			'n-gage'=>'application/vnd.nokia.n-gage.symbian.install',
			'rpst' => 'application/vnd.nokia.radio-preset',
			'rpss' => 'application/vnd.nokia.radio-presets',
			'edm' => 'application/vnd.novadigm.edm',
			'edx' => 'application/vnd.novadigm.edx',
			'ext' => 'application/vnd.novadigm.ext',
			'odc' => 'application/vnd.oasis.opendocument.chart',
			'otc' => 'application/vnd.oasis.opendocument.chart-template',
			'odb' => 'application/vnd.oasis.opendocument.database',
			'odf' => 'application/vnd.oasis.opendocument.formula',
			'odft' => 'application/vnd.oasis.opendocument.formula-template',
			'odg' => 'application/vnd.oasis.opendocument.graphics',
			'otg' => 'application/vnd.oasis.opendocument.graphics-template',
			'odi' => 'application/vnd.oasis.opendocument.image',
			'oti' => 'application/vnd.oasis.opendocument.image-template',
			'odp' => 'application/vnd.oasis.opendocument.presentation',
			'otp' => 'application/vnd.oasis.opendocument.presentation-template',
			'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
			'ots' => 'application/vnd.oasis.opendocument.spreadsheet-template',
			'odt' => 'application/vnd.oasis.opendocument.text',
			'otm' => 'application/vnd.oasis.opendocument.text-master',
			'ott' => 'application/vnd.oasis.opendocument.text-template',
			'oth' => 'application/vnd.oasis.opendocument.text-web',
			'xo' => 'application/vnd.olpc-sugar',
			'dd2' => 'application/vnd.oma.dd2+xml',
			'oxt' => 'application/vnd.openofficeorg.extension',
			'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
			'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide',
			'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
			'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
			
			'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
			'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
			'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
			'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
			'dp' => 'application/vnd.osgi.dp',
			'oprc' => 'application/vnd.palm',
			'pdb' => 'application/vnd.palm',
			'pqa' => 'application/vnd.palm',
			'paw' => 'application/vnd.pawaafile',
			'str' => 'application/vnd.pg.format',
			'ei6' => 'application/vnd.pg.osasli',
			'efif' => 'application/vnd.picsel',
			'wg' => 'application/vnd.pmi.widget',
			'plf' => 'application/vnd.pocketlearn',
			'pbd' => 'application/vnd.powerbuilder6',
			'box' => 'application/vnd.previewsystems.box',
			'mgz' => 'application/vnd.proteus.magazine',
			'qps' => 'application/vnd.publishare-delta-tree',
			'ptid' => 'application/vnd.pvi.ptid1',
			'qxb' => 'application/vnd.quark.quarkxpress',
			'qxd' => 'application/vnd.quark.quarkxpress',
			'qxt' => 'application/vnd.quark.quarkxpress',
			'qwd' => 'application/vnd.quark.quarkxpress',
			'qwt' => 'application/vnd.quark.quarkxpress',
			'qxl' => 'application/vnd.quark.quarkxpress',
			'bed' => 'application/vnd.realvnc.bed',
			'mxl' => 'application/vnd.recordare.musicxml',
			'musicxml' => 'application/vnd.recordare.musicxml+xml',
			'cod' => 'application/vnd.rim.cod',
			'rm' => 'application/vnd.rn-realmedia',
			'link66' => 'application/vnd.route66.link66+xml',
			'st' => 'application/vnd.sailingtracker.track',
			'see' => 'application/vnd.seemail',
			'sema' => 'application/vnd.sema',
			'semd' => 'application/vnd.semd',
			'semf' => 'application/vnd.semf',
			'ifm' => 'application/vnd.shana.informed.formdata',
			'itp' => 'application/vnd.shana.informed.formtemplate',
			'iif' => 'application/vnd.shana.informed.interchange',
			'ipk' => 'application/vnd.shana.informed.package',
			'twds' => 'application/vnd.simtech-mindmapper',
			'twd' => 'application/vnd.simtech-mindmapper',
			'mmf' => 'application/vnd.smaf',
			'teacher' => 'application/vnd.smart.teacher',
			'sdkd' => 'application/vnd.solent.sdkm+xml',
			'sdkm' => 'application/vnd.solent.sdkm+xml',
			'dxp' => 'application/vnd.spotfire.dxp',
			'sfs' => 'application/vnd.spotfire.sfs',
			'sdc' => 'application/vnd.stardivision.calc',
			'sda' => 'application/vnd.stardivision.draw',
			'sdd' => 'application/vnd.stardivision.impress',
			'smf' => 'application/vnd.stardivision.math',
			'sdw' => 'application/vnd.stardivision.writer',
			'vor' => 'application/vnd.stardivision.writer',
			'sgl' => 'application/vnd.stardivision.writer-global',
			'sxc' => 'application/vnd.sun.xml.calc',
			'stc' => 'application/vnd.sun.xml.calc.template',
			'sxd' => 'application/vnd.sun.xml.draw',
			'std' => 'application/vnd.sun.xml.draw.template',
			'sxi' => 'application/vnd.sun.xml.impress',
			'sti' => 'application/vnd.sun.xml.impress.template',
			'sxm' => 'application/vnd.sun.xml.math',
			'sxw' => 'application/vnd.sun.xml.writer',
			'sxg' => 'application/vnd.sun.xml.writer.global',
			'stw' => 'application/vnd.sun.xml.writer.template',
			'susp' => 'application/vnd.sus-calendar',
			'sus' => 'application/vnd.sus-calendar',
			'svd' => 'application/vnd.svd',
			'sisx' => 'application/vnd.symbian.install',
			'sis' => 'application/vnd.symbian.install',
			'xsm' => 'application/vnd.syncml+xml',
			'bdm' => 'application/vnd.syncml.dm+wbxml',
			'xdm' => 'application/vnd.syncml.dm+xml',
			'tao' => 'application/vnd.tao.intent-module-archive',
			'tmo' => 'application/vnd.tmobile-livetv',
			'tpt' => 'application/vnd.trid.tpt',
			'mxs' => 'application/vnd.triscape.mxs',
			'tra' => 'application/vnd.trueapp',
			'ufdl' => 'application/vnd.ufdl',
			'ufd' => 'application/vnd.ufdl',
			'utz' => 'application/vnd.uiq.theme',
			'umj' => 'application/vnd.umajin',
			'unityweb' => 'application/vnd.unity',
			'uoml' => 'application/vnd.uoml+xml',
			'vcx' => 'application/vnd.vcx',
			'vsw' => 'application/vnd.visio	',
			'vsd' => 'application/vnd.visio	',
			'vst' => 'application/vnd.visio	',
			'vss' => 'application/vnd.visio	',
			'vis' => 'application/vnd.visionary',
			'vsf' => 'application/vnd.vsf',
			'wbxml' => 'application/vnd.wap.wbxml',
			'wmlc' => 'application/vnd.wap.wmlc',
			'wmlsc' => 'application/vnd.wap.wmlscriptc',
			'wtb' => 'application/vnd.webturbo',
			'nbp' => 'application/vnd.wolfram.player',
			'wpd' => 'application/vnd.wordperfect',
			'wqd' => 'application/vnd.wqd',
			'stf' => 'application/vnd.wt.stf',
			'xar' => 'application/vnd.xara',
			'xfdl' => 'application/vnd.xfdl',
			'hvd' => 'application/vnd.yamaha.hv-dic',
			'hvs' => 'application/vnd.yamaha.hv-script',
			'hvp' => 'application/vnd.yamaha.hv-voice',
			'osf' => 'application/vnd.yamaha.openscoreformat',
			'osfpvg' => 'application/vnd.yamaha.openscoreformat.osfpvg+xml',
			'saf' => 'application/vnd.yamaha.smaf-audio',
			'spf' => 'application/vnd.yamaha.smaf-phrase',
			'cmp' => 'application/vnd.yellowriver-custom-menu',
			'zirz' => 'application/vnd.zul',
			'zir' => 'application/vnd.zul',
			'zaz' => 'application/vnd.zzazz.deck+xml',
			'vxml' => 'application/voicexml+xml',
			'hlp' => 'application/winhlp',
			'wsdl' => 'application/wsdl+xml',
			'wspolicy' => 'application/wspolicy+xml',
			'abw' => 'application/x-abiword',
			'ace' => 'application/x-ace-compressed',
			'vox' => 'application/x-authorware-bin',
			'aab' => 'application/x-authorware-bin',
			'x32' => 'application/x-authorware-bin',
			'u32' => 'application/x-authorware-bin',
			'aam' => 'application/x-authorware-map',
			'aas' => 'application/x-authorware-seg',
			'bcpio' => 'application/x-bcpio',
			'torrent' => 'application/x-bittorrent',
			'bz' => 'application/x-bzip',
			'boz' => 'application/x-bzip2',
			'bz2' => 'application/x-bzip2',
			'vcd' => 'application/x-cdlink',
			'chat' => 'application/x-chat',
			'pgn' => 'application/x-chess-pgn',
			'cpio' => 'application/x-cpio',
			'csh' => 'application/x-csh',
			'udeb' => 'application/x-debian-package',
			'deb' => 'application/x-debian-package',
			
			'swa' => 'application/x-director',
			'dir' => 'application/x-director',
			'dcr' => 'application/x-director',
			'dxr' => 'application/x-director',
			'cst' => 'application/x-director',
			'cct' => 'application/x-director',
			'cxt' => 'application/x-director',
			'w3d' => 'application/x-director',
			'fgd' => 'application/x-director',
			
			'wad' => 'application/x-doom',
			'ncx' => 'application/x-dtbncx+xml',
			'dtb' => 'application/x-dtbook+xml',
			'res' => 'application/x-dtbresource+xml',
			'dvi' => 'application/x-dvi',
			'bdf' => 'application/x-font-bdf',
			'gsf' => 'application/x-font-ghostscript',
			'psf' => 'application/x-font-linux-psf',
			'otf' => 'application/x-font-otf',
			'pcf' => 'application/x-font-pcf',
			'snf' => 'application/x-font-snf',
			'ttc' => 'application/x-font-ttf',
			'ttf' => 'application/x-font-ttf',
			'afm' => 'application/x-font-type1',
			'pfa' => 'application/x-font-type1',
			'pfb' => 'application/x-font-type1',
			'pfm' => 'application/x-font-type1',
			'spl' => 'application/x-futuresplash',
			'gnumeric' => 'application/x-gnumeric',
			'gtar' => 'application/x-gtar',
			'hdf' => 'application/x-hdf',
			'jnlp' => 'application/x-java-jnlp-file',
			'latex' => 'application/x-latex',
			'mobi' => 'application/x-mobipocket-ebook',
			'prc' => 'application/x-mobipocket-ebook',
			'application' => 'application/x-ms-application',
			'wmd' => 'application/x-ms-wmd',
			'wmz' => 'application/x-ms-wmz',
			'xbap' => 'application/x-ms-xbap',
			'mdb' => 'application/x-msaccess',
			'obd' => 'application/x-msbinder',
			'crd' => 'application/x-mscardfile',
			'clp' => 'application/x-msclip',
			'msi' => 'application/x-msdownload',
			'exe' => 'application/x-msdownload',
			'dll' => 'application/x-msdownload',
			'com' => 'application/x-msdownload',
			'bat' => 'application/x-msdownload',
			'm14' => 'application/x-msmediaview',
			'mvb' => 'application/x-msmediaview',
			'm13' => 'application/x-msmediaview',
			'wmf' => 'application/x-msmetafile',
			'mny' => 'application/x-msmoney',
			'pub' => 'application/x-mspublisher',
			'scd' => 'application/x-msschedule',
			'trm' => 'application/x-msterminal',
			'wri' => 'application/x-mswrite',
			'cdf' => 'application/x-netcdf',
			'nc' => 'application/x-netcdf',
			'pfx' => 'application/x-pkcs12',
			'p12' => 'application/x-pkcs12',
			'spc' => 'application/x-pkcs7-certificates',
			'p7b' => 'application/x-pkcs7-certificates',
			'p7r' => 'application/x-pkcs7-certreqresp',
			'rar' => 'application/x-rar-compressed',
			'sh' => 'application/x-sh',
			'shar' => 'application/x-shar',
			'swf' => 'application/x-shockwave-flash',
			'xap' => 'application/x-silverlight-app',
			'sit' => 'application/x-stuffit',
			'sitx' => 'application/x-stuffitx',
			'sv4cpio' => 'application/x-sv4cpio',
			'sv4crc' => 'application/x-sv4crc',
			'tar' => 'application/x-tar',
			'tcl' => 'application/x-tcl',
			'tex' => 'application/x-tex',
			'tfm' => 'application/x-tex-tfm',
			'texi' => 'application/x-texinfo',
			'texinfo' => 'application/x-texinfo',
			'ustar' => 'application/x-ustar',
			'src' => 'application/x-wais-source',
			'crt' => 'application/x-x509-ca-cert',
			'der' => 'application/x-x509-ca-cert',
			'fig' => 'application/x-xfig',
			'xpi' => 'application/x-xpinstall',
			'xenc' => 'application/xenc+xml',
			'xht' => 'application/xhtml+xml',
			'xhtml' => 'application/xhtml+xml',
			'xsl' => 'application/xml',
			'xml' => 'application/xml',
			'dtd' => 'application/xml-dtd',
			'xop' => 'application/xop+xml',
			'xslt' => 'application/xslt+xml',
			'xspf' => 'application/xspf+xml',
			'xvm' => 'application/xv+xml',
			'mxml' => 'application/xv+xml',
			'xhvml' => 'application/xv+xml',
			'xvml' => 'application/xv+xml',
			'zip' => 'application/zip',
			'adp' => 'audio/adpcm',
			'snd' => 'audio/basic',
			'au' => 'audio/basic',
			'rmi' => 'audio/midi',
			'mid' => 'audio/midi',
			'midi' => 'audio/midi',
			'kar' => 'audio/midi',
			'mp4a' => 'audio/mp4',
			'm3a' => 'audio/mpeg',
			'mpga' => 'audio/mpeg',
			'mp2' => 'audio/mpeg',
			'mp2a' => 'audio/mpeg',
			'mp3' => 'audio/mpeg',
			'm2a' => 'audio/mpeg',
			'spx' => 'audio/ogg',
			'oga' => 'audio/ogg',
			'ogg' => 'audio/ogg',
			'eol' => 'audio/vnd.digital-winds',
			'dra' => 'audio/vnd.dra',
			'dts' => 'audio/vnd.dts',
			'dtshd' => 'audio/vnd.dts.hd',
			'lvp' => 'audio/vnd.lucent.voice',
			'pya' => 'audio/vnd.ms-playready.media.pya',
			'ecelp4800' => 'audio/vnd.nuera.ecelp4800',
			'ecelp7470' => 'audio/vnd.nuera.ecelp7470',
			'ecelp9600' => 'audio/vnd.nuera.ecelp9600',
			'aac' => 'audio/x-aac',
			'aifc' => 'audio/x-aiff',
			'aif' => 'audio/x-aiff',
			'aiff' => 'audio/x-aiff',
			'm3u' => 'audio/x-mpegurl',
			'wax' => 'audio/x-ms-wax',
			'wma' => 'audio/x-ms-wma',
			'ra' => 'audio/x-pn-realaudio',
			'ram'=> 'audio/x-pn-realaudio',
			'rmp' => 'audio/x-pn-realaudio-plugin',
			'wav' => 'audio/x-wav',
			'cdx' => 'chemical/x-cdx',
			'cif' => 'chemical/x-cif',
			'cmdf' => 'chemical/x-cmdf',
			'cml' => 'chemical/x-cml',
			'csml' => 'chemical/x-csml',
			'xyz' => 'chemical/x-xyz',
			'bmp' => 'image/bmp',
			'cgm' => 'image/cgm',
			'g3' => 'image/g3fax',
			'gif' => 'image/gif',
			'ief' => 'image/ief',
			'jpe' => 'image/jpeg',
			'jpeg' => 'image/jpeg',
			'jpg' => 'image/jpeg',
			'png' => 'image/png',
			'btif' => 'image/prs.btif',
			'svgz' => 'image/svg+xml',
			'svg' => 'image/svg+xml',
			'tif' => 'image/tiff',
			'tiff' => 'image/tiff',
			'psd' => 'image/vnd.adobe.photoshop',
			'djv' => 'image/vnd.djvu',
			'djvu' => 'image/vnd.djvu',
			'dwg' => 'image/vnd.dwg',
			'dxf' => 'image/vnd.dxf',
			'fbs' => 'image/vnd.fastbidsheet',
			'fpx' => 'image/vnd.fpx',
			'fst' => 'image/vnd.fst',
			'mmr' => 'image/vnd.fujixerox.edmics-mmr',
			'rlc' => 'image/vnd.fujixerox.edmics-rlc',
			'mdi' => 'image/vnd.ms-modi',
			'npx' => 'image/vnd.net-fpx',
			'wbmp' => 'image/vnd.wap.wbmp',
			'xif' => 'image/vnd.xiff',
			'ras' => 'image/x-cmu-raster',
			'cmx' => 'image/x-cmx',
			'fh7' => 'image/x-freehand',
			'fh'=> 'image/x-freehand',
			'fhc'=> 'image/x-freehand',
			'fh4'=> 'image/x-freehand',
			'fh5'=> 'image/x-freehand',
			'ico' => 'image/x-icon',
			'pcx' => 'image/x-pcx',
			'pct' => 'image/x-pict',
			'pic' => 'image/x-pict',
			'pnm' => 'image/x-portable-anymap',
			'pbm' => 'image/x-portable-bitmap',
			'pgm' => 'image/x-portable-graymap',
			'ppm' => 'image/x-portable-pixmap',
			'rgb' => 'image/x-rgb',
			'xbm' => 'image/x-xbitmap',
			'xpm' => 'image/x-xpixmap',
			'xwd' => 'image/x-xwindowdump',
			'mime' => 'message/rfc822',
			'eml' => 'message/rfc822',
			'iges' => 'model/iges',
			'igs' => 'model/iges',
			'silo' => 'model/mesh',
			'msh' => 'model/mesh',
			'mesh' => 'model/mesh',
			'dwf' => 'model/vnd.dwf',
			'gdl' => 'model/vnd.gdl',
			'gtw' => 'model/vnd.gtw',
			'mts' => 'model/vnd.mts',
			'vtu' => 'model/vnd.vtu',
			'vrml' => 'model/vrml',
			'wrl' => 'model/vrml',
			'ifb' => 'text/calendar',
			'ics' => 'text/calendar',
			'css' => 'text/css',
			'csv' => 'text/csv',
			'htm' => 'text/html	',
			'html'=> 'text/html	',
			'in' => 'text/plain',
			'txt' => 'text/plain',
			'text' => 'text/plain',
			'conf' => 'text/plain',
			'def' => 'text/plain',
			'list' => 'text/plain', 
			'log' => 'text/plain',
			'dsc' => 'text/prs.lines.tag',
			'rtx' => 'text/richtext',
			'sgm' => 'text/sgml',
			'sgml' => 'text/sgml',
			'tsv' => 'text/tab-separated-values',
			'ms' => 'text/troff',
			't' => 'text/troff',
			'tr' => 'text/troff',
			'roff' => 'text/troff',
			'man' => 'text/troff',
			'me' => 'text/troff',
			'urls' => 'text/uri-list',
			'uri' => 'text/uri-list',
			'uris' => 'text/uri-list',
			'curl' => 'text/vnd.curl',
			'dcurl' => 'text/vnd.curl.dcurl',
			'scurl' => 'text/vnd.curl.scurl',
			'mcurl' => 'text/vnd.curl.mcurl',
			'fly' => 'text/vnd.fly',
			'flx' => 'text/vnd.fmi.flexstor',
			'gv' => 'text/vnd.graphviz',
			'3dml' => 'text/vnd.in3d.3dml',
			'spot' => 'text/vnd.in3d.spot',
			'jad' => 'text/vnd.sun.j2me.app-descriptor',
			'wml' => 'text/vnd.wap.wml',
			'wmls' => 'text/vnd.wap.wmlscript',
			'asm' => 'text/x-asm',
			's' => 'text/x-asm',
			'dic' => 'text/x-c',
			'c' => 'text/x-c',
			'cc' => 'text/x-c',
			'cxx' => 'text/x-c',
			'cpp' => 'text/x-c',
			'h' => 'text/x-c',
			'hh' => 'text/x-c',
			'f90' => 'text/x-fortran',
			'f' => 'text/x-fortran',
			'for' => 'text/x-fortran',
			'f77' => 'text/x-fortran',
			'pas' => 'text/x-pascal',
			'p' => 'text/x-pascal',
			'java' => 'text/x-java-source',
			'etx' => 'text/x-setext',
			'uu' => 'text/x-uuencode',
			'vcs' => 'text/x-vcalendar',
			'vcf' => 'text/x-vcard',
			'3gp' => 'video/3gpp',
			'3g2' => 'video/3gpp2',
			'h261' => 'video/h261',
			'h263' => 'video/h263',
			'h264' => 'video/h264',
			'jpgv' => 'video/jpeg',
			'jpgm' => 'video/jpm',
			'jpm'  => 'video/jpm',
			'mjp2' => 'video/mj2',
			'mj2'  => 'video/mj2',
			'mpg4' => 'video/mp4',
			'mp4' => 'video/mp4',
			'mp4v' => 'video/mp4',
			'm2v' => 'video/mpeg',
			'mpeg' => 'video/mpeg',
			'mpg' => 'video/mpeg',
			'mpe' => 'video/mpeg',
			'm1v' => 'video/mpeg',
			'ogv' => 'video/ogg',
			'mov' => 'video/quicktime',
			'qt' => 'video/quicktime',
			'fvt' => 'video/vnd.fvt',
			'm4u' => 'video/vnd.mpegurl',
			'mxu' => 'video/vnd.mpegurl',
			'pyv' => 'video/vnd.ms-playready.media.pyv',
			'viv' => 'video/vnd.vivo',
			'f4v' => 'video/x-f4v',
			'fli' => 'video/x-fli',
			'flv' => 'video/x-flv',
			'm4v' => 'video/x-m4v',
			'asx' => 'video/x-ms-asf','asf' => 'video/x-ms-asf',
			'wm' => 'video/x-ms-wm',
			'wmv' => 'video/x-ms-wmv',
			'wmx' => 'video/x-ms-wmx',
			'wvx' => 'video/x-ms-wvx',
			'avi' => 'video/x-msvideo',
			'movie' => 'video/x-sgi-movie',
			'ice' => 'x-conference/x-cooltalk',
	);

	/**
	 * Get file MIME according to its extension.
	 *
	 * @param string $ext
	 * @return string
	 */
	public static function get_type($ext) {
		return isset(self::$mime_maps[$ext]) ? self::$mime_maps[$ext] : 'application/octet-stream';
	}
}