Added node modules

node_modules/connect/lib/middleware/directory.js

@@ -0,0 +1,222 @@
+
+/*!
+ * Connect - directory
+ * Copyright(c) 2011 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * MIT Licensed
+ */
+
+// TODO: icon / style for directories
+// TODO: arrow key navigation
+// TODO: make icons extensible
+
+/**
+ * Module dependencies.
+ */
+
+var fs = require('fs')
+  , parse = require('url').parse
+  , utils = require('../utils')
+  , path = require('path')
+  , normalize = path.normalize
+  , extname = path.extname
+  , join = path.join;
+
+/**
+ * Icon cache.
+ */
+
+var cache = {};
+
+/**
+ * Serve directory listings with the given `root` path.
+ *
+ * Options:
+ *
+ *  - `hidden` display hidden (dot) files. Defaults to false.
+ *  - `icons`  display icons. Defaults to false.
+ *  - `filter` Apply this filter function to files. Defaults to false.
+ *
+ * @param {String} root
+ * @param {Object} options
+ * @return {Function}
+ * @api public
+ */
+
+exports = module.exports = function directory(root, options){
+  options = options || {};
+
+  // root required
+  if (!root) throw new Error('directory() root path required');
+  var hidden = options.hidden
+    , icons = options.icons
+    , filter = options.filter
+    , root = normalize(root);
+
+  return function directory(req, res, next) {
+    var accept = req.headers.accept || 'text/plain'
+      , url = parse(req.url)
+      , dir = decodeURIComponent(url.pathname)
+      , path = normalize(join(root, dir))
+      , originalUrl = parse(req.originalUrl)
+      , originalDir = decodeURIComponent(originalUrl.pathname)
+      , showUp = path != root && path != root + '/';
+
+    // null byte(s)
+    if (~path.indexOf('\0')) return utils.badRequest(res);
+
+    // malicious path
+    if (0 != path.indexOf(root)) return utils.forbidden(res);
+
+    // check if we have a directory
+    fs.stat(path, function(err, stat){
+      if (err) return 'ENOENT' == err.code
+        ? next()
+        : next(err);
+
+      if (!stat.isDirectory()) return next();
+
+      // fetch files
+      fs.readdir(path, function(err, files){
+        if (err) return next(err);
+        if (!hidden) files = removeHidden(files);
+        if (filter) files = files.filter(filter);
+        files.sort();
+        // content-negotiation
+        for (var key in exports) {
+          if (~accept.indexOf(key) || ~accept.indexOf('*/*')) {
+            exports[key](req, res, files, next, originalDir, showUp, icons);
+            return;
+          }
+        }
+        utils.notAcceptable(res);
+      });
+    });
+  };
+};
+
+/**
+ * Respond with text/html.
+ */
+
+exports.html = function(req, res, files, next, dir, showUp, icons){
+  fs.readFile(__dirname + '/../public/directory.html', 'utf8', function(err, str){
+    if (err) return next(err);
+    fs.readFile(__dirname + '/../public/style.css', 'utf8', function(err, style){
+      if (err) return next(err);
+      if (showUp) files.unshift('..');
+      str = str
+        .replace('{style}', style)
+        .replace('{files}', html(files, dir, icons))
+        .replace('{directory}', dir)
+		.replace('{linked-path}', htmlPath(dir));
+      res.setHeader('Content-Type', 'text/html');
+      res.setHeader('Content-Length', str.length);
+      res.end(str);
+    });
+  });
+};
+
+/**
+ * Respond with application/json.
+ */
+
+exports.json = function(req, res, files){
+  files = JSON.stringify(files);
+  res.setHeader('Content-Type', 'application/json');
+  res.setHeader('Content-Length', files.length);
+  res.end(files);
+};
+
+/**
+ * Respond with text/plain.
+ */
+
+exports.plain = function(req, res, files){
+  files = files.join('\n') + '\n';
+  res.setHeader('Content-Type', 'text/plain');
+  res.setHeader('Content-Length', files.length);
+  res.end(files);
+};
+
+/**
+ * Map html `dir`, returning a linked path.
+ */
+
+function htmlPath(dir) {
+  var curr = [];
+  return dir.split('/').map(function(part){
+    curr.push(part);
+    return '<a href="' + curr.join('/') + '">' + part + '</a>';
+  }).join(' / ');
+}
+
+/**
+ * Map html `files`, returning an html unordered list.
+ */
+
+function html(files, dir, useIcons) {
+  return '<ul id="files">' + files.map(function(file){
+    var icon = ''
+      , classes = [];
+
+    if (useIcons && '..' != file) {
+      icon = icons[extname(file)] || icons.default;
+      icon = '<img src="data:image/png;base64,' + load(icon) + '" />';
+      classes.push('icon');
+    }
+
+    return '<li><a href="'
+      + join(dir, file)
+      + '" class="'
+      + classes.join(' ') + '"'
+      + ' title="' + file + '">'
+      + icon + file + '</a></li>';
+
+  }).join('\n') + '</ul>';
+}
+
+/**
+ * Load and cache the given `icon`.
+ *
+ * @param {String} icon
+ * @return {String}
+ * @api private
+ */
+
+function load(icon) {
+  if (cache[icon]) return cache[icon];
+  return cache[icon] = fs.readFileSync(__dirname + '/../public/icons/' + icon, 'base64');
+}
+
+/**
+ * Filter "hidden" `files`, aka files
+ * beginning with a `.`.
+ *
+ * @param {Array} files
+ * @return {Array}
+ * @api private
+ */
+
+function removeHidden(files) {
+  return files.filter(function(file){
+    return '.' != file[0];
+  });
+}
+
+/**
+ * Icon map.
+ */
+
+var icons = {
+    '.js': 'page_white_code_red.png'
+  , '.c': 'page_white_c.png'
+  , '.h': 'page_white_h.png'
+  , '.cc': 'page_white_cplusplus.png'
+  , '.php': 'page_white_php.png'
+  , '.rb': 'page_white_ruby.png'
+  , '.cpp': 'page_white_cplusplus.png'
+  , '.swf': 'page_white_flash.png'
+  , '.pdf': 'page_white_acrobat.png'
+  , 'default': 'page_white.png'
+};