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