Nim/lib/pure/mimetypes.nim

#
#
#            Nim's Runtime Library
#        (c) Copyright 2012 Dominik Picheta
#
#    See the file "copying.txt", included in this
#    distribution, for details about the copyright.
#

## This module implements a mimetypes database
import strtabs
type
  MimeDB* = object
    mimes: StringTableRef

const mimes* = {
    "ez": "application/andrew-inset",
    "anx": "application/annodex",
    "atom": "application/atom+xml",
    "atomcat": "application/atomcat+xml",
    "atomsrv": "application/atomserv+xml",
    "lin": "application/bbolin",
    "cap": "application/cap",
    "pcap": "application/cap",
    "cu": "application/cu-seeme",
    "davmount": "application/davmount+xml",
    "tsp": "application/dsptype",
    "es": "application/ecmascript",
    "spl": "application/futuresplash",
    "hta": "application/hta",
    "jar": "application/java-archive",
    "ser": "application/java-serialized-object",
    "class": "application/java-vm",
    "js": "application/javascript",
    "m3g": "application/m3g",
    "hqx": "application/mac-binhex40",
    "cpt": "application/mac-compactpro",
    "nb": "application/mathematica",
    "nbp": "application/mathematica",
    "mdb": "application/msaccess",
    "doc": "application/msword",
    "dot": "application/msword",
    "mxf": "application/mxf",
    "bin": "application/octet-stream",
    "oda": "application/oda",
    "ogx": "application/ogg",
    "pdf": "application/pdf",
    "key": "application/pgp-keys",
    "pgp": "application/pgp-signature",
    "prf": "application/pics-rules",
    "ps": "application/postscript",
    "ai": "application/postscript",
    "eps": "application/postscript",
    "epsi": "application/postscript",
    "epsf": "application/postscript",
    "eps2": "application/postscript",
    "eps3": "application/postscript",
    "rar": "application/rar",
    "rdf": "application/rdf+xml",
    "rss": "application/rss+xml",
    "rtf": "application/rtf",
    "smi": "application/smil",
    "smil": "application/smil",
    "xhtml": "application/xhtml+xml",
    "xht": "application/xhtml+xml",
    "xml": "application/xml",
    "xsl": "application/xml",
    "xsd": "application/xml",
    "xspf": "application/xspf+xml",
    "zip": "application/zip",
    "apk": "application/vnd.android.package-archive",
    "cdy": "application/vnd.cinderella",
    "kml": "application/vnd.google-earth.kml+xml",
    "kmz": "application/vnd.google-earth.kmz",
    "xul": "application/vnd.mozilla.xul+xml",
    "xls": "application/vnd.ms-excel",
    "xlb": "application/vnd.ms-excel",
    "xlt": "application/vnd.ms-excel",
    "cat": "application/vnd.ms-pki.seccat",
    "stl": "application/vnd.ms-pki.stl",
    "ppt": "application/vnd.ms-powerpoint",
    "pps": "application/vnd.ms-powerpoint",
    "xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
    "xltx": "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
    "pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
    "ppsx": "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
    "potx": "application/vnd.openxmlformats-officedocument.presentationml.template",
    "docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
    "dotx": "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
    "cod": "application/vnd.rim.cod",
    "mmf": "application/vnd.smaf",
    "sis": "application/vnd.symbian.install",
    "vsd": "application/vnd.visio",
    "wbxml": "application/vnd.wap.wbxml",
    "wmlc": "application/vnd.wap.wmlc",
    "wmlsc": "application/vnd.wap.wmlscriptc",
    "wpd": "application/vnd.wordperfect",
    "wp5": "application/vnd.wordperfect5.1",
    "wk": "application/x-123",
    "7z": "application/x-7z-compressed",
    "abw": "application/x-abiword",
    "dmg": "application/x-apple-diskimage",
    "bcpio": "application/x-bcpio",
    "torrent": "application/x-bittorrent",
    "cab": "application/x-cab",
    "cbr": "application/x-cbr",
    "cbz": "application/x-cbz",
    "cdf": "application/x-cdf",
    "cda": "application/x-cdf",
    "vcd": "application/x-cdlink",
    "pgn": "application/x-chess-pgn",
    "cpio": "application/x-cpio",
    "csh": "application/x-csh",
    "deb": "application/x-debian-package",
    "udeb": "application/x-debian-package",
    "dcr": "application/x-director",
    "dir": "application/x-director",
    "dxr": "application/x-director",
    "dms": "application/x-dms",
    "wad": "application/x-doom",
    "dvi": "application/x-dvi",
    "rhtml": "application/x-httpd-eruby",
    "pfa": "application/x-font",
    "pfb": "application/x-font",
    "gsf": "application/x-font",
    "pcf": "application/x-font",
    "pcf.Z": "application/x-font",
    "mm": "application/x-freemind",
    "spl": "application/x-futuresplash",
    "gnumeric": "application/x-gnumeric",
    "sgf": "application/x-go-sgf",
    "gcf": "application/x-graphing-calculator",
    "gtar": "application/x-gtar",
    "tgz": "application/x-gtar",
    "taz": "application/x-gtar",
    "hdf": "application/x-hdf",
    "phtml": "application/x-httpd-php",
    "pht": "application/x-httpd-php",
    "php": "application/x-httpd-php",
    "phps": "application/x-httpd-php-source",
    "php3": "application/x-httpd-php3",
    "php3p": "application/x-httpd-php3-preprocessed",
    "php4": "application/x-httpd-php4",
    "php5": "application/x-httpd-php5",
    "ica": "application/x-ica",
    "info": "application/x-info",
    "ins": "application/x-internet-signup",
    "isp": "application/x-internet-signup",
    "iii": "application/x-iphone",
    "iso": "application/x-iso9660-image",
    "jam": "application/x-jam",
    "jnlp": "application/x-java-jnlp-file",
    "jmz": "application/x-jmol",
    "chrt": "application/x-kchart",
    "kil": "application/x-killustrator",
    "skp": "application/x-koan",
    "skd": "application/x-koan",
    "skt": "application/x-koan",
    "skm": "application/x-koan",
    "kpr": "application/x-kpresenter",
    "kpt": "application/x-kpresenter",
    "ksp": "application/x-kspread",
    "kwd": "application/x-kword",
    "kwt": "application/x-kword",
    "latex": "application/x-latex",
    "lha": "application/x-lha",
    "lyx": "application/x-lyx",
    "lzh": "application/x-lzh",
    "lzx": "application/x-lzx",
    "frm": "application/x-maker",
    "maker": "application/x-maker",
    "frame": "application/x-maker",
    "fm": "application/x-maker",
    "fb": "application/x-maker",
    "book": "application/x-maker",
    "fbdoc": "application/x-maker",
    "mif": "application/x-mif",
    "wmd": "application/x-ms-wmd",
    "wmz": "application/x-ms-wmz",
    "com": "application/x-msdos-program",
    "exe": "application/x-msdos-program",
    "bat": "application/x-msdos-program",
    "dll": "application/x-msdos-program",
    "msi": "application/x-msi",
    "nc": "application/x-netcdf",
    "pac": "application/x-ns-proxy-autoconfig",
    "dat": "application/x-ns-proxy-autoconfig",
    "nwc": "application/x-nwc",
    "o": "application/x-object",
    "oza": "application/x-oz-application",
    "p7r": "application/x-pkcs7-certreqresp",
    "crl": "application/x-pkcs7-crl",
    "pyc": "application/x-python-code",
    "pyo": "application/x-python-code",
    "qgs": "application/x-qgis",
    "shp": "application/x-qgis",
    "shx": "application/x-qgis",
    "qtl": "application/x-quicktimeplayer",
    "rpm": "application/x-redhat-package-manager",
    "rb": "application/x-ruby",
    "sh": "application/x-sh",
    "shar": "application/x-shar",
    "swf": "application/x-shockwave-flash",
    "swfl": "application/x-shockwave-flash",
    "scr": "application/x-silverlight",
    "sit": "application/x-stuffit",
    "sitx": "application/x-stuffit",
    "sv4cpio": "application/x-sv4cpio",
    "sv4crc": "application/x-sv4crc",
    "tar": "application/x-tar",
    "tcl": "application/x-tcl",
    "gf": "application/x-tex-gf",
    "pk": "application/x-tex-pk",
    "texinfo": "application/x-texinfo",
    "texi": "application/x-texinfo",
    "~": "application/x-trash",
    "%": "application/x-trash",
    "bak": "application/x-trash",
    "old": "application/x-trash",
    "sik": "application/x-trash",
    "t": "application/x-troff",
    "tr": "application/x-troff",
    "roff": "application/x-troff",
    "man": "application/x-troff-man",
    "me": "application/x-troff-me",
    "ms": "application/x-troff-ms",
    "ustar": "application/x-ustar",
    "src": "application/x-wais-source",
    "wz": "application/x-wingz",
    "crt": "application/x-x509-ca-cert",
    "xcf": "application/x-xcf",
    "fig": "application/x-xfig",
    "xpi": "application/x-xpinstall",
    "wasm": "application/wasm",
    "amr": "audio/amr",
    "awb": "audio/amr-wb",
    "amr": "audio/amr",
    "awb": "audio/amr-wb",
    "axa": "audio/annodex",
    "au": "audio/basic",
    "snd": "audio/basic",
    "flac": "audio/flac",
    "mid": "audio/midi",
    "midi": "audio/midi",
    "kar": "audio/midi",
    "mpga": "audio/mpeg",
    "mpega": "audio/mpeg",
    "mp2": "audio/mpeg",
    "mp3": "audio/mpeg",
    "m4a": "audio/mpeg",
    "m3u": "audio/mpegurl",
    "oga": "audio/ogg",
    "ogg": "audio/ogg",
    "spx": "audio/ogg",
    "sid": "audio/prs.sid",
    "aif": "audio/x-aiff",
    "aiff": "audio/x-aiff",
    "aifc": "audio/x-aiff",
    "gsm": "audio/x-gsm",
    "m3u": "audio/x-mpegurl",
    "wma": "audio/x-ms-wma",
    "wax": "audio/x-ms-wax",
    "ra": "audio/x-pn-realaudio",
    "rm": "audio/x-pn-realaudio",
    "ram": "audio/x-pn-realaudio",
    "ra": "audio/x-realaudio",
    "pls": "audio/x-scpls",
    "sd2": "audio/x-sd2",
    "wav": "audio/x-wav",
    "alc": "chemical/x-alchemy",
    "cac": "chemical/x-cache",
    "cache": "chemical/x-cache",
    "csf": "chemical/x-cache-csf",
    "cbin": "chemical/x-cactvs-binary",
    "cascii": "chemical/x-cactvs-binary",
    "ctab": "chemical/x-cactvs-binary",
    "cdx": "chemical/x-cdx",
    "cer": "chemical/x-cerius",
    "c3d": "chemical/x-chem3d",
    "chm": "chemical/x-chemdraw",
    "cif": "chemical/x-cif",
    "cmdf": "chemical/x-cmdf",
    "cml": "chemical/x-cml",
    "cpa": "chemical/x-compass",
    "bsd": "chemical/x-crossfire",
    "csml": "chemical/x-csml",
    "csm": "chemical/x-csml",
    "ctx": "chemical/x-ctx",
    "cxf": "chemical/x-cxf",
    "cef": "chemical/x-cxf",
    "smi": "#chemical/x-daylight-smiles",
    "emb": "chemical/x-embl-dl-nucleotide",
    "embl": "chemical/x-embl-dl-nucleotide",
    "spc": "chemical/x-galactic-spc",
    "inp": "chemical/x-gamess-input",
    "gam": "chemical/x-gamess-input",
    "gamin": "chemical/x-gamess-input",
    "fch": "chemical/x-gaussian-checkpoint",
    "fchk": "chemical/x-gaussian-checkpoint",
    "cub": "chemical/x-gaussian-cube",
    "gau": "chemical/x-gaussian-input",
    "gjc": "chemical/x-gaussian-input",
    "gjf": "chemical/x-gaussian-input",
    "gal": "chemical/x-gaussian-log",
    "gcg": "chemical/x-gcg8-sequence",
    "gen": "chemical/x-genbank",
    "hin": "chemical/x-hin",
    "istr": "chemical/x-isostar",
    "ist": "chemical/x-isostar",
    "jdx": "chemical/x-jcamp-dx",
    "dx": "chemical/x-jcamp-dx",
    "kin": "chemical/x-kinemage",
    "mcm": "chemical/x-macmolecule",
    "mmd": "chemical/x-macromodel-input",
    "mmod": "chemical/x-macromodel-input",
    "mol": "chemical/x-mdl-molfile",
    "rd": "chemical/x-mdl-rdfile",
    "rxn": "chemical/x-mdl-rxnfile",
    "sd": "chemical/x-mdl-sdfile",
    "sdf": "chemical/x-mdl-sdfile",
    "tgf": "chemical/x-mdl-tgf",
    "mif": "#chemical/x-mif",
    "mcif": "chemical/x-mmcif",
    "mol2": "chemical/x-mol2",
    "b": "chemical/x-molconn-Z",
    "gpt": "chemical/x-mopac-graph",
    "mop": "chemical/x-mopac-input",
    "mopcrt": "chemical/x-mopac-input",
    "mpc": "chemical/x-mopac-input",
    "zmt": "chemical/x-mopac-input",
    "moo": "chemical/x-mopac-out",
    "mvb": "chemical/x-mopac-vib",
    "asn": "chemical/x-ncbi-asn1",
    "prt": "chemical/x-ncbi-asn1-ascii",
    "ent": "chemical/x-ncbi-asn1-ascii",
    "val": "chemical/x-ncbi-asn1-binary",
    "aso": "chemical/x-ncbi-asn1-binary",
    "asn": "chemical/x-ncbi-asn1-spec",
    "pdb": "chemical/x-pdb",
    "ent": "chemical/x-pdb",
    "ros": "chemical/x-rosdal",
    "sw": "chemical/x-swissprot",
    "vms": "chemical/x-vamas-iso14976",
    "vmd": "chemical/x-vmd",
    "xtel": "chemical/x-xtel",
    "xyz": "chemical/x-xyz",
    "gif": "image/gif",
    "ief": "image/ief",
    "jpeg": "image/jpeg",
    "jpg": "image/jpeg",
    "jpe": "image/jpeg",
    "pcx": "image/pcx",
    "png": "image/png",
    "svg": "image/svg+xml",
    "svgz": "image/svg+xml",
    "tiff": "image/tiff",
    "tif": "image/tiff",
    "djvu": "image/vnd.djvu",
    "djv": "image/vnd.djvu",
    "wbmp": "image/vnd.wap.wbmp",
    "cr2": "image/x-canon-cr2",
    "crw": "image/x-canon-crw",
    "ras": "image/x-cmu-raster",
    "cdr": "image/x-coreldraw",
    "pat": "image/x-coreldrawpattern",
    "cdt": "image/x-coreldrawtemplate",
    "cpt": "image/x-corelphotopaint",
    "erf": "image/x-epson-erf",
    "ico": "image/x-icon",
    "art": "image/x-jg",
    "jng": "image/x-jng",
    "bmp": "image/x-ms-bmp",
    "nef": "image/x-nikon-nef",
    "orf": "image/x-olympus-orf",
    "psd": "image/x-photoshop",
    "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",
    "eml": "message/rfc822",
    "igs": "model/iges",
    "iges": "model/iges",
    "msh": "model/mesh",
    "mesh": "model/mesh",
    "silo": "model/mesh",
    "wrl": "model/vrml",
    "vrml": "model/vrml",
    "x3dv": "model/x3d+vrml",
    "x3d": "model/x3d+xml",
    "x3db": "model/x3d+binary",
    "manifest": "text/cache-manifest",
    "ics": "text/calendar",
    "icz": "text/calendar",
    "css": "text/css",
    "csv": "text/csv",
    "323": "text/h323",
    "html": "text/html",
    "htm": "text/html",
    "shtml": "text/html",
    "uls": "text/iuls",
    "mml": "text/mathml",
    "asc": "text/plain",
    "txt": "text/plain",
    "text": "text/plain",
    "pot": "text/plain",
    "brf": "text/plain",
    "rtx": "text/richtext",
    "sct": "text/scriptlet",
    "wsc": "text/scriptlet",
    "tm": "text/texmacs",
    "ts": "text/texmacs",
    "tsv": "text/tab-separated-values",
    "jad": "text/vnd.sun.j2me.app-descriptor",
    "wml": "text/vnd.wap.wml",
    "wmls": "text/vnd.wap.wmlscript",
    "bib": "text/x-bibtex",
    "boo": "text/x-boo",
    "h++": "text/x-c++hdr",
    "hpp": "text/x-c++hdr",
    "hxx": "text/x-c++hdr",
    "hh": "text/x-c++hdr",
    "c++": "text/x-c++src",
    "cpp": "text/x-c++src",
    "cxx": "text/x-c++src",
    "cc": "text/x-c++src",
    "h": "text/x-chdr",
    "htc": "text/x-component",
    "csh": "text/x-csh",
    "c": "text/x-csrc",
    "d": "text/x-dsrc",
    "diff": "text/x-diff",
    "patch": "text/x-diff",
    "hs": "text/x-haskell",
    "java": "text/x-java",
    "lhs": "text/x-literate-haskell",
    "moc": "text/x-moc",
    "p": "text/x-pascal",
    "pas": "text/x-pascal",
    "gcd": "text/x-pcs-gcd",
    "pl": "text/x-perl",
    "pm": "text/x-perl",
    "py": "text/x-python",
    "scala": "text/x-scala",
    "etx": "text/x-setext",
    "sh": "text/x-sh",
    "tcl": "text/x-tcl",
    "tk": "text/x-tcl",
    "tex": "text/x-tex",
    "ltx": "text/x-tex",
    "sty": "text/x-tex",
    "cls": "text/x-tex",
    "vcs": "text/x-vcalendar",
    "vcf": "text/x-vcard",
    "3gp": "video/3gpp",
    "axv": "video/annodex",
    "dl": "video/dl",
    "dif": "video/dv",
    "dv": "video/dv",
    "fli": "video/fli",
    "gl": "video/gl",
    "mpeg": "video/mpeg",
    "mpg": "video/mpeg",
    "mpe": "video/mpeg",
    "mp4": "video/mp4",
    "qt": "video/quicktime",
    "mov": "video/quicktime",
    "ogv": "video/ogg",
    "mxu": "video/vnd.mpegurl",
    "flv": "video/x-flv",
    "lsf": "video/x-la-asf",
    "lsx": "video/x-la-asf",
    "mng": "video/x-mng",
    "asf": "video/x-ms-asf",
    "asx": "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",
    "mpv": "video/x-matroska",
    "mkv": "video/x-matroska",
    "ice": "x-conference/x-cooltalk",
    "sisx": "x-epoc/x-sisx-app",
    "vrm": "x-world/x-vrml",
    "vrml": "x-world/x-vrml",
    "wrl": "x-world/x-vrml"}

from strutils import startsWith

proc newMimetypes*(): MimeDB =
  ## Creates a new Mimetypes database. The database will contain the most
  ## common mimetypes.
  result.mimes = mimes.newStringTable()

proc getMimetype*(mimedb: MimeDB, ext: string, default = "text/plain"): string =
  ## Gets mimetype which corresponds to ``ext``. Returns ``default`` if ``ext``
  ## could not be found. ``ext`` can start with an optional dot which is ignored.
  if ext.startsWith("."):
    result = mimedb.mimes.getOrDefault(ext.substr(1))
  else:
    result = mimedb.mimes.getOrDefault(ext)
  if result == "":
    return default

proc getExt*(mimedb: MimeDB, mimetype: string, default = "txt"): string =
  ## Gets extension which corresponds to ``mimetype``. Returns ``default`` if
  ## ``mimetype`` could not be found. Extensions are returned without the
  ## leading dot.
  result = default
  for e, m in mimedb.mimes:
    if m == mimetype:
      result = e

proc register*(mimedb: var MimeDB, ext: string, mimetype: string) =
  ## Adds ``mimetype`` to the ``mimedb``.
  mimedb.mimes[ext] = mimetype

when isMainModule:
  var m = newMimetypes()
  assert m.getMimetype("mp4") == "video/mp4"
  assert m.getExt("text/html") == "html"