content-type-to-ext/index.ts

Map content-type to file extension (and vice-versa)

export enum Extensions {
  '3gp' = 'video/3gpp',
  a = 'application/octet-stream',
  ai = 'application/postscript',
  aif = 'audio/x-aiff',
  aiff = 'audio/x-aiff',
  asc = 'application/pgp-signature',
  asf = 'video/x-ms-asf',
  asm = 'text/x-asm',
  asx = 'video/x-ms-asf',
  atom = 'application/atom+xml',
  au = 'audio/basic',
  avi = 'video/x-msvideo',
  bat = 'application/x-msdownload',
  bin = 'application/octet-stream',
  bmp = 'image/bmp',
  bz2 = 'application/x-bzip2',
  c = 'text/x-c',
  cab = 'application/vnd.ms-cab-compressed',
  cc = 'text/x-c',
  chm = 'application/vnd.ms-htmlhelp',
  class = 'application/octet-stream',
  com = 'application/x-msdownload',
  conf = 'text/plain',
  cpp = 'text/x-c',
  crt = 'application/x-x509-ca-cert',
  css = 'text/css',
  csv = 'text/csv',
  cxx = 'text/x-c',
  deb = 'application/x-debian-package',
  der = 'application/x-x509-ca-cert',
  diff = 'text/x-diff',
  djv = 'image/vnd.djvu',
  djvu = 'image/vnd.djvu',
  dll = 'application/x-msdownload',
  dmg = 'application/octet-stream',
  doc = 'application/msword',
  dot = 'application/msword',
  dtd = 'application/xml-dtd',
  dvi = 'application/x-dvi',
  ear = 'application/java-archive',
  eml = 'message/rfc822',
  eot = 'application/vnd.ms-fontobject',
  eps = 'application/postscript',
  exe = 'application/x-msdownload',
  f = 'text/x-fortran',
  f77 = 'text/x-fortran',
  f90 = 'text/x-fortran',
  flv = 'video/x-flv',
  for = 'text/x-fortran',
  gem = 'application/octet-stream',
  gemspec = 'text/x-script.ruby',
  gif = 'image/gif',
  gz = 'application/x-gzip',
  h = 'text/x-c',
  hh = 'text/x-c',
  htm = 'text/html',
  html = 'text/html',
  ico = 'image/vnd.microsoft.icon',
  ics = 'text/calendar',
  ifb = 'text/calendar',
  iso = 'application/octet-stream',
  jar = 'application/java-archive',
  java = 'text/x-java-source',
  jnlp = 'application/x-java-jnlp-file',
  jpg = 'image/jpeg',
  js = 'application/javascript',
  json = 'application/json',
  log = 'text/plain',
  m3u = 'audio/x-mpegurl',
  m4v = 'video/mp4',
  man = 'text/troff',
  mathml = 'application/mathml+xml',
  mbox = 'application/mbox',
  mdoc = 'text/troff',
  me = 'text/troff',
  mid = 'audio/midi',
  midi = 'audio/midi',
  mime = 'message/rfc822',
  mml = 'application/mathml+xml',
  mng = 'video/x-mng',
  mov = 'video/quicktime',
  mp3 = 'audio/mpeg',
  mp4 = 'video/mp4',
  mp4v = 'video/mp4',
  mpeg = 'video/mpeg',
  mpg = 'video/mpeg',
  ms = 'text/troff',
  msi = 'application/x-msdownload',
  odp = 'application/vnd.oasis.opendocument.presentation',
  ods = 'application/vnd.oasis.opendocument.spreadsheet',
  odt = 'application/vnd.oasis.opendocument.text',
  ogg = 'application/ogg',
  p = 'text/x-pascal',
  pas = 'text/x-pascal',
  pbm = 'image/x-portable-bitmap',
  pdf = 'application/pdf',
  pem = 'application/x-x509-ca-cert',
  pgm = 'image/x-portable-graymap',
  pgp = 'application/pgp-encrypted',
  pkg = 'application/octet-stream',
  pl = 'text/x-script.perl',
  pm = 'text/x-script.perl-module',
  png = 'image/png',
  pnm = 'image/x-portable-anymap',
  ppm = 'image/x-portable-pixmap',
  pps = 'application/vnd.ms-powerpoint',
  ppt = 'application/vnd.ms-powerpoint',
  ps = 'application/postscript',
  psd = 'image/vnd.adobe.photoshop',
  py = 'text/x-script.python',
  qt = 'video/quicktime',
  ra = 'audio/x-pn-realaudio',
  rake = 'text/x-script.ruby',
  ram = 'audio/x-pn-realaudio',
  rar = 'application/x-rar-compressed',
  rb = 'text/x-script.ruby',
  rdf = 'application/rdf+xml',
  roff = 'text/troff',
  rpm = 'application/x-redhat-package-manager',
  rss = 'application/rss+xml',
  rtf = 'application/rtf',
  ru = 'text/x-script.ruby',
  s = 'text/x-asm',
  sgm = 'text/sgml',
  sgml = 'text/sgml',
  sh = 'application/x-sh',
  sig = 'application/pgp-signature',
  snd = 'audio/basic',
  so = 'application/octet-stream',
  svg = 'image/svg+xml',
  svgz = 'image/svg+xml',
  swf = 'application/x-shockwave-flash',
  t = 'text/troff',
  tar = 'application/x-tar',
  tbz = 'application/x-bzip-compressed-tar',
  tcl = 'application/x-tcl',
  tex = 'application/x-tex',
  texi = 'application/x-texinfo',
  texinfo = 'application/x-texinfo',
  text = 'text/plain',
  tif = 'image/tiff',
  tiff = 'image/tiff',
  torrent = 'application/x-bittorrent',
  tr = 'text/troff',
  ttf = 'application/x-font-ttf',
  txt = 'text/plain',
  vcf = 'text/x-vcard',
  vcs = 'text/x-vcalendar',
  vrml = 'model/vrml',
  war = 'application/java-archive',
  wav = 'audio/x-wav',
  wma = 'audio/x-ms-wma',
  wmv = 'video/x-ms-wmv',
  wmx = 'video/x-ms-wmx',
  woff = 'application/x-font-woff',
  wrl = 'model/vrml',
  wsdl = 'application/wsdl+xml',
  xbm = 'image/x-xbitmap',
  xhtml = 'application/xhtml+xml',
  xls = 'application/vnd.ms-excel',
  xml = 'application/xml',
  xpm = 'image/x-xpixmap',
  xsl = 'application/xml',
  xslt = 'application/xslt+xml',
  yaml = 'text/yaml',
  yml = 'text/yaml',
  zip = 'application/zip'
}

export type Extension = keyof typeof Extensions

export function getExtension(mimeType: string): Extension | undefined {
  for (let extension in Extensions) {
    if (Extensions[extension] === mimeType) {
      return extension as Extension
    }
  }
}

export function getContentType(ext: Extension): Extensions | undefined {
  return Extensions[ext]
}