mime
var path = require('path');
var fs = require('fs');
function Mime() {
this.types = Object.create(null);
this.extensions = Object.create(null);
}
Mime.prototype.define = function (map) {
for (var type in map) {
var exts = map[type];
for (var i = 0; i < exts.length; i++) {
if (process.env.DEBUG_MIME && this.types[exts]) {
console.warn(this._loading.replace(/.*\//, ''), 'changes "' + exts[i] + '" extension type from ' +
this.types[exts] + ' to ' + type);
}
this.types[exts[i]] = type;
}
if (!this.extensions[type]) {
this.extensions[type] = exts[0];
}
}
};
Mime.prototype.load = function(file) {
this._loading = file;
var map = {},
content = fs.readFileSync(file, 'ascii'),
lines = content.split(/[\r\n]+/);
lines.forEach(function(line) {
var fields = line.replace(/\s*#.*|^\s*|\s*$/g, '').split(/\s+/);
map[fields.shift()] = fields;
});
this.define(map);
this._loading = null;
};
Mime.prototype.lookup = function(path, fallback) {
var ext = path.replace(/.*[\.\/\\]/, '').toLowerCase();
return this.types[ext] || fallback || this.default_type;
};
Mime.prototype.extension = function(mimeType) {
var type = mimeType.match(/^\s*([^;\s]*)(?:;|\s|$)/)[1].toLowerCase();
return this.extensions[type];
};
var mime = new Mime();
mime.load(path.join(__dirname, 'types/mime.types'));
mime.load(path.join(__dirname, 'types/node.types'));
mime.default_type = mime.lookup('bin');
mime.Mime = Mime;
mime.charsets = {
lookup: function(mimeType, fallback) {
return (/^text\//).test(mimeType) ? 'UTF-8' : fallback;
}
};
module.exports = mime;