rspamd/lualib/lua_mime_types.lua

--[[
Copyright (c) 2022, Vsevolod Stakhov <vsevolod@rspamd.com>

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
]]--

--[[[
-- @module lua_mime_types
-- This module contains mime types list
--]]

local exports = {}

-- All mime extensions with corresponding content types
exports.full_extensions_map = {
    {"323", "text/h323"},
    {"3g2", "video/3gpp2"},
    {"3gp", "video/3gpp"},
    {"3gp2", "video/3gpp2"},
    {"3gpp", "video/3gpp"},
    {"7z", {"application/x-7z-compressed", "application/7z"}},
    {"aa", "audio/audible"},
    {"AAC", "audio/aac"},
    {"aaf", "application/octet-stream"},
    {"aax", "audio/vnd.audible.aax"},
    {"ac3", "audio/ac3"},
    {"aca", "application/octet-stream"},
    {"accda", "application/msaccess.addin"},
    {"accdb", "application/msaccess"},
    {"accdc", "application/msaccess.cab"},
    {"accde", "application/msaccess"},
    {"accdr", "application/msaccess.runtime"},
    {"accdt", "application/msaccess"},
    {"accdw", "application/msaccess.webapplication"},
    {"accft", "application/msaccess.ftemplate"},
    {"acx", "application/internet-property-stream"},
    {"AddIn", "text/xml"},
    {"ade", "application/msaccess"},
    {"adobebridge", "application/x-bridge-url"},
    {"adp", "application/msaccess"},
    {"ADT", "audio/vnd.dlna.adts"},
    {"ADTS", "audio/aac"},
    {"afm", "application/octet-stream"},
    {"ai", "application/postscript"},
    {"aif", "audio/aiff"},
    {"aifc", "audio/aiff"},
    {"aiff", "audio/aiff"},
    {"air", "application/vnd.adobe.air-application-installer-package+zip"},
    {"amc", "application/mpeg"},
    {"anx", "application/annodex"},
    {"apk", "application/vnd.android.package-archive" },
    {"application", "application/x-ms-application"},
    {"art", "image/x-jg"},
    {"asa", "application/xml"},
    {"asax", "application/xml"},
    {"ascx", "application/xml"},
    {"asd", "application/octet-stream"},
    {"asf", "video/x-ms-asf"},
    {"ashx", "application/xml"},
    {"asi", "application/octet-stream"},
    {"asm", "text/plain"},
    {"asmx", "application/xml"},
    {"aspx", "application/xml"},
    {"asr", "video/x-ms-asf"},
    {"asx", "video/x-ms-asf"},
    {"atom", "application/atom+xml"},
    {"au", "audio/basic"},
    {"avi", "video/x-msvideo"},
    {"axa", "audio/annodex"},
    {"axs", "application/olescript"},
    {"axv", "video/annodex"},
    {"bas", "text/plain"},
    {"bcpio", "application/x-bcpio"},
    {"bin", "application/octet-stream"},
    {"bmp", {"image/bmp", "image/x-ms-bmp"}},
    {"c", "text/plain"},
    {"cab", "application/octet-stream"},
    {"caf", "audio/x-caf"},
    {"calx", "application/vnd.ms-office.calx"},
    {"cat", "application/vnd.ms-pki.seccat"},
    {"cc", "text/plain"},
    {"cd", "text/plain"},
    {"cdda", "audio/aiff"},
    {"cdf", "application/x-cdf"},
    {"cer", "application/x-x509-ca-cert"},
    {"cfg", "text/plain"},
    {"chm", "application/octet-stream"},
    {"class", "application/x-java-applet"},
    {"clp", "application/x-msclip"},
    {"cmd", "text/plain"},
    {"cmx", "image/x-cmx"},
    {"cnf", "text/plain"},
    {"cod", "image/cis-cod"},
    {"config", "application/xml"},
    {"contact", "text/x-ms-contact"},
    {"coverage", "application/xml"},
    {"cpio", "application/x-cpio"},
    {"cpp", "text/plain"},
    {"crd", "application/x-mscardfile"},
    {"crl", "application/pkix-crl"},
    {"crt", "application/x-x509-ca-cert"},
    {"cs", "text/plain"},
    {"csdproj", "text/plain"},
    {"csh", "application/x-csh"},
    {"csproj", "text/plain"},
    {"css", "text/css"},
    {"csv", {"application/vnd.ms-excel", "text/csv", "text/plain"}},
    {"cur", "application/octet-stream"},
    {"cxx", "text/plain"},
    {"dat", {"application/octet-stream", "application/ms-tnef"}},
    {"datasource", "application/xml"},
    {"dbproj", "text/plain"},
    {"dcr", "application/x-director"},
    {"def", "text/plain"},
    {"deploy", "application/octet-stream"},
    {"der", "application/x-x509-ca-cert"},
    {"dgml", "application/xml"},
    {"dib", "image/bmp"},
    {"dif", "video/x-dv"},
    {"dir", "application/x-director"},
    {"disco", "text/xml"},
    {"divx", "video/divx"},
    {"dll", "application/x-msdownload"},
    {"dll.config", "text/xml"},
    {"dlm", "text/dlm"},
    {"doc", "application/msword"},
    {"docm", "application/vnd.ms-word.document.macroEnabled.12"},
    {"docx", {
        "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
        "application/msword",
        "application/vnd.ms-word.document.12",
        "application/octet-stream",
    }},
    {"dot", "application/msword"},
    {"dotm", "application/vnd.ms-word.template.macroEnabled.12"},
    {"dotx", "application/vnd.openxmlformats-officedocument.wordprocessingml.template"},
    {"dsp", "application/octet-stream"},
    {"dsw", "text/plain"},
    {"dtd", "text/xml"},
    {"dtsConfig", "text/xml"},
    {"dv", "video/x-dv"},
    {"dvi", "application/x-dvi"},
    {"dwf", "drawing/x-dwf"},
    {"dwg", {"application/acad", "image/vnd.dwg"}},
    {"dwp", "application/octet-stream"},
    {"dxf", "application/x-dxf" },
    {"dxr", "application/x-director"},
    {"eml", "message/rfc822"},
    {"emz", "application/octet-stream"},
    {"eot", "application/vnd.ms-fontobject"},
    {"eps", "application/postscript"},
    {"etl", "application/etl"},
    {"etx", "text/x-setext"},
    {"evy", "application/envoy"},
    {"exe", {
        "application/x-dosexec",
        "application/x-msdownload",
        "application/x-executable",
    }},
    {"exe.config", "text/xml"},
    {"fdf", "application/vnd.fdf"},
    {"fif", "application/fractals"},
    {"filters", "application/xml"},
    {"fla", "application/octet-stream"},
    {"flac", "audio/flac"},
    {"flr", "x-world/x-vrml"},
    {"flv", "video/x-flv"},
    {"fsscript", "application/fsharp-script"},
    {"fsx", "application/fsharp-script"},
    {"generictest", "application/xml"},
    {"gif", "image/gif"},
    {"gpx", "application/gpx+xml"},
    {"group", "text/x-ms-group"},
    {"gsm", "audio/x-gsm"},
    {"gtar", "application/x-gtar"},
    {"gz", {"application/gzip", "application/x-gzip", "application/tlsrpt+gzip"}},
    {"h", "text/plain"},
    {"hdf", "application/x-hdf"},
    {"hdml", "text/x-hdml"},
    {"hhc", "application/x-oleobject"},
    {"hhk", "application/octet-stream"},
    {"hhp", "application/octet-stream"},
    {"hlp", "application/winhlp"},
    {"hpp", "text/plain"},
    {"hqx", "application/mac-binhex40"},
    {"hta", "application/hta"},
    {"htc", "text/x-component"},
    {"htm", "text/html"},
    {"html", "text/html"},
    {"htt", "text/webviewhtml"},
    {"hxa", "application/xml"},
    {"hxc", "application/xml"},
    {"hxd", "application/octet-stream"},
    {"hxe", "application/xml"},
    {"hxf", "application/xml"},
    {"hxh", "application/octet-stream"},
    {"hxi", "application/octet-stream"},
    {"hxk", "application/xml"},
    {"hxq", "application/octet-stream"},
    {"hxr", "application/octet-stream"},
    {"hxs", "application/octet-stream"},
    {"hxt", "text/html"},
    {"hxv", "application/xml"},
    {"hxw", "application/octet-stream"},
    {"hxx", "text/plain"},
    {"i", "text/plain"},
    {"ico", "image/x-icon"},
    {"ics", {"text/calendar", "application/ics", "application/octet-stream"}},
    {"idl", "text/plain"},
    {"ief", "image/ief"},
    {"iii", "application/x-iphone"},
    {"inc", "text/plain"},
    {"inf", "application/octet-stream"},
    {"ini", "text/plain"},
    {"inl", "text/plain"},
    {"ins", "application/x-internet-signup"},
    {"ipa", "application/x-itunes-ipa"},
    {"ipg", "application/x-itunes-ipg"},
    {"ipproj", "text/plain"},
    {"ipsw", "application/x-itunes-ipsw"},
    {"iqy", "text/x-ms-iqy"},
    {"isp", "application/x-internet-signup"},
    {"ite", "application/x-itunes-ite"},
    {"itlp", "application/x-itunes-itlp"},
    {"itms", "application/x-itunes-itms"},
    {"itpc", "application/x-itunes-itpc"},
    {"IVF", "video/x-ivf"},
    {"jar", "application/java-archive"},
    {"java", "application/octet-stream"},
    {"jck", "application/liquidmotion"},
    {"jcz", "application/liquidmotion"},
    {"jfif", {"image/jpeg", "image/pjpeg"}},
    {"jnlp", "application/x-java-jnlp-file"},
    {"jpb", "application/octet-stream"},
    {"jpe", {"image/jpeg", "image/pjpeg"}},
    {"jpeg", {"image/jpeg", "image/pjpeg"}},
    {"jpg", {"image/jpeg", "image/pjpeg"}},
    {"js", "application/javascript"},
    {"json", "application/json"},
    {"jsx", "text/jscript"},
    {"jsxbin", "text/plain"},
    {"latex", "application/x-latex"},
    {"library-ms", "application/windows-library+xml"},
    {"lit", "application/x-ms-reader"},
    {"loadtest", "application/xml"},
    {"lpk", "application/octet-stream"},
    {"lsf", "video/x-la-asf"},
    {"lst", "text/plain"},
    {"lsx", "video/x-la-asf"},
    {"lzh", "application/octet-stream"},
    {"m13", "application/x-msmediaview"},
    {"m14", "application/x-msmediaview"},
    {"m1v", "video/mpeg"},
    {"m2t", "video/vnd.dlna.mpeg-tts"},
    {"m2ts", "video/vnd.dlna.mpeg-tts"},
    {"m2v", "video/mpeg"},
    {"m3u", "audio/x-mpegurl"},
    {"m3u8", "audio/x-mpegurl"},
    {"m4a", {"audio/m4a", "audio/x-m4a"}},
    {"m4b", "audio/m4b"},
    {"m4p", "audio/m4p"},
    {"m4r", "audio/x-m4r"},
    {"m4v", "video/x-m4v"},
    {"mac", "image/x-macpaint"},
    {"mak", "text/plain"},
    {"man", "application/x-troff-man"},
    {"manifest", "application/x-ms-manifest"},
    {"map", "text/plain"},
    {"master", "application/xml"},
    {"mbox", "application/mbox"},
    {"mda", "application/msaccess"},
    {"mdb", "application/x-msaccess"},
    {"mde", "application/msaccess"},
    {"mdp", "application/octet-stream"},
    {"me", "application/x-troff-me"},
    {"mfp", "application/x-shockwave-flash"},
    {"mht", "message/rfc822"},
    {"mhtml", "message/rfc822"},
    {"mid", "audio/mid"},
    {"midi", "audio/mid"},
    {"mix", "application/octet-stream"},
    {"mk", "text/plain"},
    {"mmf", "application/x-smaf"},
    {"mno", "text/xml"},
    {"mny", "application/x-msmoney"},
    {"mod", "video/mpeg"},
    {"mov", "video/quicktime"},
    {"movie", "video/x-sgi-movie"},
    {"mp2", "video/mpeg"},
    {"mp2v", "video/mpeg"},
    {"mp3", {"audio/mpeg", "audio/mpeg3", "audio/mp3", "audio/x-mpeg-3"}},
    {"mp4", "video/mp4"},
    {"mp4v", "video/mp4"},
    {"mpa", "video/mpeg"},
    {"mpe", "video/mpeg"},
    {"mpeg", "video/mpeg"},
    {"mpf", "application/vnd.ms-mediapackage"},
    {"mpg", "video/mpeg"},
    {"mpp", "application/vnd.ms-project"},
    {"mpv2", "video/mpeg"},
    {"mqv", "video/quicktime"},
    {"ms", "application/x-troff-ms"},
    {"msg", "application/vnd.ms-outlook"},
    {"msi", {"application/x-msi", "application/octet-stream"}},
    {"mso", "application/octet-stream"},
    {"mts", "video/vnd.dlna.mpeg-tts"},
    {"mtx", "application/xml"},
    {"mvb", "application/x-msmediaview"},
    {"mvc", "application/x-miva-compiled"},
    {"mxp", "application/x-mmxp"},
    {"nc", "application/x-netcdf"},
    {"nsc", "video/x-ms-asf"},
    {"nws", "message/rfc822"},
    {"ocx", "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"},
    {"odh", "text/plain"},
    {"odi", "application/vnd.oasis.opendocument.image"},
    {"odl", "text/plain"},
    {"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"},
    {"ogx", "application/ogg"},
    {"one", "application/onenote"},
    {"onea", "application/onenote"},
    {"onepkg", "application/onenote"},
    {"onetmp", "application/onenote"},
    {"onetoc", "application/onenote"},
    {"onetoc2", "application/onenote"},
    {"opus", "audio/ogg"},
    {"orderedtest", "application/xml"},
    {"osdx", "application/opensearchdescription+xml"},
    {"otf", "application/font-sfnt"},
    {"otg", "application/vnd.oasis.opendocument.graphics-template"},
    {"oth", "application/vnd.oasis.opendocument.text-web"},
    {"otp", "application/vnd.oasis.opendocument.presentation-template"},
    {"ots", "application/vnd.oasis.opendocument.spreadsheet-template"},
    {"ott", "application/vnd.oasis.opendocument.text-template"},
    {"oxt", "application/vnd.openofficeorg.extension"},
    {"p10", "application/pkcs10"},
    {"p12", "application/x-pkcs12"},
    {"p7b", "application/x-pkcs7-certificates"},
    {"p7c", "application/pkcs7-mime"},
    {"p7m", "application/pkcs7-mime", "application/x-pkcs7-mime"},
    {"p7r", "application/x-pkcs7-certreqresp"},
    {"p7s", {"application/pkcs7-signature", "application/x-pkcs7-signature", "text/plain"}},
    {"pbm", "image/x-portable-bitmap"},
    {"pcast", "application/x-podcast"},
    {"pct", "image/pict"},
    {"pcx", "application/octet-stream"},
    {"pcz", "application/octet-stream"},
    {"pdf", "application/pdf"},
    {"pfb", "application/octet-stream"},
    {"pfm", "application/octet-stream"},
    {"pfx", "application/x-pkcs12"},
    {"pgm", "image/x-portable-graymap"},
    {"pic", "image/pict"},
    {"pict", "image/pict"},
    {"pkgdef", "text/plain"},
    {"pkgundef", "text/plain"},
    {"pko", "application/vnd.ms-pki.pko"},
    {"pls", "audio/scpls"},
    {"pma", "application/x-perfmon"},
    {"pmc", "application/x-perfmon"},
    {"pml", "application/x-perfmon"},
    {"pmr", "application/x-perfmon"},
    {"pmw", "application/x-perfmon"},
    {"png", "image/png"},
    {"pnm", "image/x-portable-anymap"},
    {"pnt", "image/x-macpaint"},
    {"pntg", "image/x-macpaint"},
    {"pnz", "image/png"},
    {"pot", "application/vnd.ms-powerpoint"},
    {"potm", "application/vnd.ms-powerpoint.template.macroEnabled.12"},
    {"potx", "application/vnd.openxmlformats-officedocument.presentationml.template"},
    {"ppa", "application/vnd.ms-powerpoint"},
    {"ppam", "application/vnd.ms-powerpoint.addin.macroEnabled.12"},
    {"ppm", "image/x-portable-pixmap"},
    {"pps", "application/vnd.ms-powerpoint"},
    {"ppsm", "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"},
    {"ppsx", "application/vnd.openxmlformats-officedocument.presentationml.slideshow"},
    {"ppt", "application/vnd.ms-powerpoint"},
    {"pptm", "application/vnd.ms-powerpoint.presentation.macroEnabled.12"},
    {"pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
    {"prf", "application/pics-rules"},
    {"prm", "application/octet-stream"},
    {"prx", "application/octet-stream"},
    {"ps", "application/postscript"},
    {"psc1", "application/PowerShell"},
    {"psd", "application/octet-stream"},
    {"psess", "application/xml"},
    {"psm", "application/octet-stream"},
    {"psp", "application/octet-stream"},
    {"pst", "application/vnd.ms-outlook"},
    {"pub", "application/x-mspublisher"},
    {"pwz", "application/vnd.ms-powerpoint"},
    {"qht", "text/x-html-insertion"},
    {"qhtm", "text/x-html-insertion"},
    {"qt", "video/quicktime"},
    {"qti", "image/x-quicktime"},
    {"qtif", "image/x-quicktime"},
    {"qtl", "application/x-quicktimeplayer"},
    {"qxd", "application/octet-stream"},
    {"ra", "audio/x-pn-realaudio"},
    {"ram", "audio/x-pn-realaudio"},
    {"rar", {"application/x-rar-compressed", "application/x-rar", "application/rar", "application/octet-stream"}},
    {"ras", "image/x-cmu-raster"},
    {"rat", "application/rat-file"},
    {"rc", "text/plain"},
    {"rc2", "text/plain"},
    {"rct", "text/plain"},
    {"rdlc", "application/xml"},
    {"reg", "text/plain"},
    {"resx", "application/xml"},
    {"rf", "image/vnd.rn-realflash"},
    {"rgb", "image/x-rgb"},
    {"rgs", "text/plain"},
    {"rm", "application/vnd.rn-realmedia"},
    {"rmi", "audio/mid"},
    {"rmp", "application/vnd.rn-rn_music_package"},
    {"roff", "application/x-troff"},
    {"rpm", "audio/x-pn-realaudio-plugin"},
    {"rqy", "text/x-ms-rqy"},
    {"rtf", {"application/rtf","application/msword", "text/richtext", "text/rtf"}},
    {"rtx", "text/richtext"},
    {"rvt", "application/octet-stream" },
    {"ruleset", "application/xml"},
    {"s", "text/plain"},
    {"safariextz", "application/x-safari-safariextz"},
    {"scd", "application/x-msschedule"},
    {"scr", "text/plain"},
    {"sct", "text/scriptlet"},
    {"sd2", "audio/x-sd2"},
    {"sdp", "application/sdp"},
    {"sea", "application/octet-stream"},
    {"searchConnector-ms", "application/windows-search-connector+xml"},
    {"setpay", "application/set-payment-initiation"},
    {"setreg", "application/set-registration-initiation"},
    {"settings", "application/xml"},
    {"sgimb", "application/x-sgimb"},
    {"sgml", "text/sgml"},
    {"sh", "application/x-sh"},
    {"shar", "application/x-shar"},
    {"shtml", "text/html"},
    {"sit", "application/x-stuffit"},
    {"sitemap", "application/xml"},
    {"skin", "application/xml"},
    {"skp", "application/x-koan" },
    {"sldm", "application/vnd.ms-powerpoint.slide.macroEnabled.12"},
    {"sldx", "application/vnd.openxmlformats-officedocument.presentationml.slide"},
    {"slk", "application/vnd.ms-excel"},
    {"sln", "text/plain"},
    {"slupkg-ms", "application/x-ms-license"},
    {"smd", "audio/x-smd"},
    {"smi", "application/octet-stream"},
    {"smx", "audio/x-smd"},
    {"smz", "audio/x-smd"},
    {"snd", "audio/basic"},
    {"snippet", "application/xml"},
    {"snp", "application/octet-stream"},
    {"sol", "text/plain"},
    {"sor", "text/plain"},
    {"spc", "application/x-pkcs7-certificates"},
    {"spl", "application/futuresplash"},
    {"spx", "audio/ogg"},
    {"src", "application/x-wais-source"},
    {"srf", "text/plain"},
    {"SSISDeploymentManifest", "text/xml"},
    {"ssm", "application/streamingmedia"},
    {"sst", "application/vnd.ms-pki.certstore"},
    {"stl", "application/vnd.ms-pki.stl"},
    {"sv4cpio", "application/x-sv4cpio"},
    {"sv4crc", "application/x-sv4crc"},
    {"svc", "application/xml"},
    {"svg", "image/svg+xml"},
    {"swf", "application/x-shockwave-flash"},
    {"step", "application/step"},
    {"stp", "application/step"},
    {"t", "application/x-troff"},
    {"tar", "application/x-tar"},
    {"tcl", "application/x-tcl"},
    {"testrunconfig", "application/xml"},
    {"testsettings", "application/xml"},
    {"tex", "application/x-tex"},
    {"texi", "application/x-texinfo"},
    {"texinfo", "application/x-texinfo"},
    {"tgz", "application/x-compressed"},
    {"thmx", "application/vnd.ms-officetheme"},
    {"thn", "application/octet-stream"},
    {"tif", {"image/tiff", "application/octet-stream"}},
    {"tiff", "image/tiff"},
    {"tlh", "text/plain"},
    {"tli", "text/plain"},
    {"toc", "application/octet-stream"},
    {"tr", "application/x-troff"},
    {"trm", "application/x-msterminal"},
    {"trx", "application/xml"},
    {"ts", "video/vnd.dlna.mpeg-tts"},
    {"tsv", "text/tab-separated-values"},
    {"ttf", "application/font-sfnt"},
    {"tts", "video/vnd.dlna.mpeg-tts"},
    {"txt", "text/plain"},
    {"u32", "application/octet-stream"},
    {"uls", "text/iuls"},
    {"user", "text/plain"},
    {"ustar", "application/x-ustar"},
    {"vb", "text/plain"},
    {"vbdproj", "text/plain"},
    {"vbk", "video/mpeg"},
    {"vbproj", "text/plain"},
    {"vbs", "text/vbscript"},
    {"vcf", {"text/x-vcard", "text/vcard"}},
    {"vcproj", "application/xml"},
    {"vcs", "text/plain"},
    {"vcxproj", "application/xml"},
    {"vddproj", "text/plain"},
    {"vdp", "text/plain"},
    {"vdproj", "text/plain"},
    {"vdx", "application/vnd.ms-visio.viewer"},
    {"vml", "text/xml"},
    {"vscontent", "application/xml"},
    {"vsct", "text/xml"},
    {"vsd", "application/vnd.visio"},
    {"vsi", "application/ms-vsi"},
    {"vsix", "application/vsix"},
    {"vsixlangpack", "text/xml"},
    {"vsixmanifest", "text/xml"},
    {"vsmdi", "application/xml"},
    {"vspscc", "text/plain"},
    {"vss", "application/vnd.visio"},
    {"vsscc", "text/plain"},
    {"vssettings", "text/xml"},
    {"vssscc", "text/plain"},
    {"vst", "application/vnd.visio"},
    {"vstemplate", "text/xml"},
    {"vsto", "application/x-ms-vsto"},
    {"vsw", "application/vnd.visio"},
    {"vsx", "application/vnd.visio"},
    {"vtx", "application/vnd.visio"},
    {"wav", {"audio/wav", "audio/vnd.wave", "audio/x-wav"}},
    {"wave", "audio/wav"},
    {"wax", "audio/x-ms-wax"},
    {"wbk", "application/msword"},
    {"wbmp", "image/vnd.wap.wbmp"},
    {"wcm", "application/vnd.ms-works"},
    {"wdb", "application/vnd.ms-works"},
    {"wdp", "image/vnd.ms-photo"},
    {"webarchive", "application/x-safari-webarchive"},
    {"webm", "video/webm"},
    {"webp", "image/webp"},
    {"webtest", "application/xml"},
    {"wiq", "application/xml"},
    {"wiz", "application/msword"},
    {"wks", "application/vnd.ms-works"},
    {"WLMP", "application/wlmoviemaker"},
    {"wlpginstall", "application/x-wlpg-detect"},
    {"wlpginstall3", "application/x-wlpg3-detect"},
    {"wm", "video/x-ms-wm"},
    {"wma", "audio/x-ms-wma"},
    {"wmd", "application/x-ms-wmd"},
    {"wmf", {"application/x-msmetafile", "image/wmf", "image/x-wmf"}},
    {"wml", "text/vnd.wap.wml"},
    {"wmlc", "application/vnd.wap.wmlc"},
    {"wmls", "text/vnd.wap.wmlscript"},
    {"wmlsc", "application/vnd.wap.wmlscriptc"},
    {"wmp", "video/x-ms-wmp"},
    {"wmv", "video/x-ms-wmv"},
    {"wmx", "video/x-ms-wmx"},
    {"wmz", "application/x-ms-wmz"},
    {"woff", "application/font-woff"},
    {"wpl", "application/vnd.ms-wpl"},
    {"wps", "application/vnd.ms-works"},
    {"wri", "application/x-mswrite"},
    {"wrl", "x-world/x-vrml"},
    {"wrz", "x-world/x-vrml"},
    {"wsc", "text/scriptlet"},
    {"wsdl", "text/xml"},
    {"wvx", "video/x-ms-wvx"},
    {"x", "application/directx"},
    {"xaf", "x-world/x-vrml"},
    {"xaml", "application/xaml+xml"},
    {"xap", "application/x-silverlight-app"},
    {"xbap", "application/x-ms-xbap"},
    {"xbm", "image/x-xbitmap"},
    {"xdr", "text/plain"},
    {"xht", "application/xhtml+xml"},
    {"xhtml", "application/xhtml+xml"},
    {"xla", "application/vnd.ms-excel"},
    {"xlam", "application/vnd.ms-excel.addin.macroEnabled.12"},
    {"xlc", "application/vnd.ms-excel"},
    {"xld", "application/vnd.ms-excel"},
    {"xlk", "application/vnd.ms-excel"},
    {"xll", "application/vnd.ms-excel"},
    {"xlm", "application/vnd.ms-excel"},
    {"xls", {
        "application/excel",
        "application/vnd.ms-excel",
        "application/vnd.ms-office",
        "application/x-excel",
        "application/octet-stream"
    }},
    {"xlsb", "application/vnd.ms-excel.sheet.binary.macroEnabled.12"},
    {"xlsm", "application/vnd.ms-excel.sheet.macroEnabled.12"},
    {"xlsx", {
        "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
        "application/vnd.ms-excel.12",
        "application/octet-stream"
    }},
    {"xlt", "application/vnd.ms-excel"},
    {"xltm", "application/vnd.ms-excel.template.macroEnabled.12"},
    {"xltx", "application/vnd.openxmlformats-officedocument.spreadsheetml.template"},
    {"xlw", "application/vnd.ms-excel"},
    {"xml", {"application/xml", "text/xml", "application/octet-stream"}},
    {"xmp", "application/octet-stream" },
    {"xmta", "application/xml"},
    {"xof", "x-world/x-vrml"},
    {"XOML", "text/plain"},
    {"xpm", "image/x-xpixmap"},
    {"xps", "application/vnd.ms-xpsdocument"},
    {"xrm-ms", "text/xml"},
    {"xsc", "application/xml"},
    {"xsd", "text/xml"},
    {"xsf", "text/xml"},
    {"xsl", "text/xml"},
    {"xslt", "text/xml"},
    {"xsn", "application/octet-stream"},
    {"xss", "application/xml"},
    {"xspf", "application/xspf+xml"},
    {"xtp", "application/octet-stream"},
    {"xwd", "image/x-xwindowdump"},
    {"z", "application/x-compress"},
    {"zip", {
        "application/zip",
        "application/x-zip-compressed",
        "application/octet-stream"
    }},
    {"zlib", "application/zlib"},
}

-- Used to match extension by content type
exports.reversed_extensions_map = {
    ["text/html"] = "html",
    ["text/css"] = "css",
    ["text/xml"] = "xml",
    ["image/gif"] = "gif",
    ["image/jpeg"] = "jpeg",
    ["application/javascript"] = "js",
    ["application/atom+xml"] = "atom",
    ["application/rss+xml"] = "rss",
    ["application/csv"] = "csv",
    ["text/mathml"] = "mml",
    ["text/plain"] = "txt",
    ["text/vnd.sun.j2me.app-descriptor"] = "jad",
    ["text/vnd.wap.wml"] = "wml",
    ["text/x-component"] = "htc",
    ["image/png"] = "png",
    ["image/svg+xml"] = "svg",
    ["image/tiff"] = "tiff",
    ["image/vnd.wap.wbmp"] = "wbmp",
    ["image/webp"] = "webp",
    ["image/x-icon"] = "ico",
    ["image/x-jng"] = "jng",
    ["image/x-ms-bmp"] = "bmp",
    ["font/woff"] = "woff",
    ["font/woff2"] = "woff2",
    ["application/java-archive"] = "jar",
    ["application/json"] = "json",
    ["application/mac-binhex40"] = "hqx",
    ["application/msword"] = "doc",
    ["application/pdf"] = "pdf",
    ["application/postscript"] = "ps",
    ["application/rtf"] = "rtf",
    ["application/vnd.apple.mpegurl"] = "m3u8",
    ["application/vnd.google-earth.kml+xml"] = "kml",
    ["application/vnd.google-earth.kmz"] = "kmz",
    ["application/vnd.ms-excel"] = "xls",
    ["application/vnd.ms-fontobject"] = "eot",
    ["application/vnd.ms-powerpoint"] = "ppt",
    ["application/vnd.oasis.opendocument.graphics"] = "odg",
    ["application/vnd.oasis.opendocument.presentation"] = "odp",
    ["application/vnd.oasis.opendocument.spreadsheet"] = "ods",
    ["application/vnd.oasis.opendocument.text"] = "odt",
    ["application/vnd.openxmlformats-officedocument.presentationml.presentation"] = "pptx",
    ["application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"] = "xlsx",
    ["application/vnd.openxmlformats-officedocument.wordprocessingml.document"] = "docx",
    ["application/x-7z-compressed"] = "7z",
    ["application/x-cocoa"] = "cco",
    ["application/x-java-archive-diff"] = "jardiff",
    ["application/x-java-jnlp-file"] = "jnlp",
    ["application/x-makeself"] = "run",
    ["application/x-perl"] = "pl",
    ["application/x-pilot"] = "pdb",
    ["application/x-rar-compressed"] = "rar",
    ["application/x-redhat-package-manager"] = "rpm",
    ["application/x-sea"] = "sea",
    ["application/x-shockwave-flash"] = "swf",
    ["application/x-stuffit"] = "sit",
    ["application/x-tcl"] = "tcl",
    ["application/x-x509-ca-cert"] = "crt",
    ["application/x-xpinstall"] = "xpi",
    ["application/xhtml+xml"] = "xhtml",
    ["application/xspf+xml"] = "xspf",
    ["application/zip"] = "zip",
    ["application/x-dosexec"] = "exe",
    ["application/x-msdownload"] = "exe",
    ["application/x-executable"] = "exe",
    ["text/x-msdos-batch"] = "bat",

    ["audio/midi"] = "mid",
    ["audio/mpeg"] = "mp3",
    ["audio/ogg"] = "ogg",
    ["audio/x-m4a"] = "m4a",
    ["audio/x-realaudio"] = "ra",
    ["video/3gpp"] = "3gpp",
    ["video/mp2t"] = "ts",
    ["video/mp4"] = "mp4",
    ["video/mpeg"] = "mpeg",
    ["video/quicktime"] = "mov",
    ["video/webm"] = "webm",
    ["video/x-flv"] = "flv",
    ["video/x-m4v"] = "m4v",
    ["video/x-mng"] = "mng",
    ["video/x-ms-asf"] = "asx",
    ["video/x-ms-wmv"] = "wmv",
    ["video/x-msvideo"] = "avi",
}

return exports