hackcentercontrol/nodeartnet/node_modules/express/node_modules/connect/lib/middleware/static.js

95 lines
2.1 KiB
JavaScript

/*!
* Connect - static
* Copyright(c) 2010 Sencha Inc.
* Copyright(c) 2011 TJ Holowaychuk
* MIT Licensed
*/
/**
* Module dependencies.
*/
var send = require('send')
, utils = require('../utils')
, parse = utils.parseUrl
, url = require('url');
/**
* Static:
*
* Static file server with the given `root` path.
*
* Examples:
*
* var oneDay = 86400000;
*
* connect()
* .use(connect.static(__dirname + '/public'))
*
* connect()
* .use(connect.static(__dirname + '/public', { maxAge: oneDay }))
*
* Options:
*
* - `maxAge` Browser cache maxAge in milliseconds. defaults to 0
* - `hidden` Allow transfer of hidden files. defaults to false
* - `redirect` Redirect to trailing "/" when the pathname is a dir. defaults to true
*
* @param {String} root
* @param {Object} options
* @return {Function}
* @api public
*/
exports = module.exports = function static(root, options){
options = options || {};
// root required
if (!root) throw new Error('static() root path required');
// default redirect
var redirect = false !== options.redirect;
return function static(req, res, next) {
if ('GET' != req.method && 'HEAD' != req.method) return next();
var path = parse(req).pathname;
var pause = utils.pause(req);
function resume() {
next();
pause.resume();
}
function directory() {
if (!redirect) return resume();
var pathname = url.parse(req.originalUrl).pathname;
res.statusCode = 301;
res.setHeader('Location', pathname + '/');
res.end('Redirecting to ' + utils.escape(pathname) + '/');
}
function error(err) {
if (404 == err.status) return resume();
next(err);
}
send(req, path)
.maxage(options.maxAge || 0)
.root(root)
.hidden(options.hidden)
.on('error', error)
.on('directory', directory)
.pipe(res);
};
};
/**
* Expose mime module.
*
* If you wish to extend the mime table use this
* reference to the "mime" module in the npm registry.
*/
exports.mime = send.mime;