updated bunch of file paths and changed the way posts are loaded

node_modules/send/index.js

@@ -0,0 +1,820 @@
+/*!
+ * send
+ * Copyright(c) 2012 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var debug = require('debug')('send')
+var deprecate = require('depd')('send')
+var destroy = require('destroy')
+var escapeHtml = require('escape-html')
+  , parseRange = require('range-parser')
+  , Stream = require('stream')
+  , mime = require('mime')
+  , fresh = require('fresh')
+  , path = require('path')
+  , fs = require('fs')
+  , normalize = path.normalize
+  , join = path.join
+var etag = require('etag')
+var EventEmitter = require('events').EventEmitter;
+var ms = require('ms');
+var onFinished = require('on-finished')
+var statuses = require('statuses')
+
+/**
+ * Variables.
+ */
+var extname = path.extname
+var maxMaxAge = 60 * 60 * 24 * 365 * 1000; // 1 year
+var resolve = path.resolve
+var sep = path.sep
+var toString = Object.prototype.toString
+var upPathRegexp = /(?:^|[\\\/])\.\.(?:[\\\/]|$)/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = send
+module.exports.mime = mime
+
+/**
+ * Shim EventEmitter.listenerCount for node.js < 0.10
+ */
+
+/* istanbul ignore next */
+var listenerCount = EventEmitter.listenerCount
+  || function(emitter, type){ return emitter.listeners(type).length; };
+
+/**
+ * Return a `SendStream` for `req` and `path`.
+ *
+ * @param {object} req
+ * @param {string} path
+ * @param {object} [options]
+ * @return {SendStream}
+ * @public
+ */
+
+function send(req, path, options) {
+  return new SendStream(req, path, options);
+}
+
+/**
+ * Initialize a `SendStream` with the given `path`.
+ *
+ * @param {Request} req
+ * @param {String} path
+ * @param {object} [options]
+ * @private
+ */
+
+function SendStream(req, path, options) {
+  var opts = options || {}
+
+  this.options = opts
+  this.path = path
+  this.req = req
+
+  this._etag = opts.etag !== undefined
+    ? Boolean(opts.etag)
+    : true
+
+  this._dotfiles = opts.dotfiles !== undefined
+    ? opts.dotfiles
+    : 'ignore'
+
+  if (this._dotfiles !== 'ignore' && this._dotfiles !== 'allow' && this._dotfiles !== 'deny') {
+    throw new TypeError('dotfiles option must be "allow", "deny", or "ignore"')
+  }
+
+  this._hidden = Boolean(opts.hidden)
+
+  if (opts.hidden !== undefined) {
+    deprecate('hidden: use dotfiles: \'' + (this._hidden ? 'allow' : 'ignore') + '\' instead')
+  }
+
+  // legacy support
+  if (opts.dotfiles === undefined) {
+    this._dotfiles = undefined
+  }
+
+  this._extensions = opts.extensions !== undefined
+    ? normalizeList(opts.extensions, 'extensions option')
+    : []
+
+  this._index = opts.index !== undefined
+    ? normalizeList(opts.index, 'index option')
+    : ['index.html']
+
+  this._lastModified = opts.lastModified !== undefined
+    ? Boolean(opts.lastModified)
+    : true
+
+  this._maxage = opts.maxAge || opts.maxage
+  this._maxage = typeof this._maxage === 'string'
+    ? ms(this._maxage)
+    : Number(this._maxage)
+  this._maxage = !isNaN(this._maxage)
+    ? Math.min(Math.max(0, this._maxage), maxMaxAge)
+    : 0
+
+  this._root = opts.root
+    ? resolve(opts.root)
+    : null
+
+  if (!this._root && opts.from) {
+    this.from(opts.from)
+  }
+}
+
+/**
+ * Inherits from `Stream.prototype`.
+ */
+
+SendStream.prototype.__proto__ = Stream.prototype;
+
+/**
+ * Enable or disable etag generation.
+ *
+ * @param {Boolean} val
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.etag = deprecate.function(function etag(val) {
+  val = Boolean(val);
+  debug('etag %s', val);
+  this._etag = val;
+  return this;
+}, 'send.etag: pass etag as option');
+
+/**
+ * Enable or disable "hidden" (dot) files.
+ *
+ * @param {Boolean} path
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.hidden = deprecate.function(function hidden(val) {
+  val = Boolean(val);
+  debug('hidden %s', val);
+  this._hidden = val;
+  this._dotfiles = undefined
+  return this;
+}, 'send.hidden: use dotfiles option');
+
+/**
+ * Set index `paths`, set to a falsy
+ * value to disable index support.
+ *
+ * @param {String|Boolean|Array} paths
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.index = deprecate.function(function index(paths) {
+  var index = !paths ? [] : normalizeList(paths, 'paths argument');
+  debug('index %o', paths);
+  this._index = index;
+  return this;
+}, 'send.index: pass index as option');
+
+/**
+ * Set root `path`.
+ *
+ * @param {String} path
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.root = function(path){
+  path = String(path);
+  this._root = resolve(path)
+  return this;
+};
+
+SendStream.prototype.from = deprecate.function(SendStream.prototype.root,
+  'send.from: pass root as option');
+
+SendStream.prototype.root = deprecate.function(SendStream.prototype.root,
+  'send.root: pass root as option');
+
+/**
+ * Set max-age to `maxAge`.
+ *
+ * @param {Number} maxAge
+ * @return {SendStream}
+ * @api public
+ */
+
+SendStream.prototype.maxage = deprecate.function(function maxage(maxAge) {
+  maxAge = typeof maxAge === 'string'
+    ? ms(maxAge)
+    : Number(maxAge);
+  if (isNaN(maxAge)) maxAge = 0;
+  if (Infinity == maxAge) maxAge = 60 * 60 * 24 * 365 * 1000;
+  debug('max-age %d', maxAge);
+  this._maxage = maxAge;
+  return this;
+}, 'send.maxage: pass maxAge as option');
+
+/**
+ * Emit error with `status`.
+ *
+ * @param {number} status
+ * @param {Error} [error]
+ * @private
+ */
+
+SendStream.prototype.error = function error(status, error) {
+  // emit if listeners instead of responding
+  if (listenerCount(this, 'error') !== 0) {
+    return this.emit('error', createError(error, status, {
+      expose: false
+    }))
+  }
+
+  var res = this.res
+  var msg = statuses[status]
+
+  // wipe all existing headers
+  res._headers = null
+
+  // send basic response
+  res.statusCode = status
+  res.setHeader('Content-Type', 'text/plain; charset=UTF-8')
+  res.setHeader('Content-Length', Buffer.byteLength(msg))
+  res.setHeader('X-Content-Type-Options', 'nosniff')
+  res.end(msg)
+}
+
+/**
+ * Check if the pathname ends with "/".
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.hasTrailingSlash = function(){
+  return '/' == this.path[this.path.length - 1];
+};
+
+/**
+ * Check if this is a conditional GET request.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isConditionalGET = function(){
+  return this.req.headers['if-none-match']
+    || this.req.headers['if-modified-since'];
+};
+
+/**
+ * Strip content-* header fields.
+ *
+ * @private
+ */
+
+SendStream.prototype.removeContentHeaderFields = function removeContentHeaderFields() {
+  var res = this.res
+  var headers = Object.keys(res._headers || {})
+
+  for (var i = 0; i < headers.length; i++) {
+    var header = headers[i]
+    if (header.substr(0, 8) === 'content-' && header !== 'content-location') {
+      res.removeHeader(header)
+    }
+  }
+}
+
+/**
+ * Respond with 304 not modified.
+ *
+ * @api private
+ */
+
+SendStream.prototype.notModified = function(){
+  var res = this.res;
+  debug('not modified');
+  this.removeContentHeaderFields();
+  res.statusCode = 304;
+  res.end();
+};
+
+/**
+ * Raise error that headers already sent.
+ *
+ * @api private
+ */
+
+SendStream.prototype.headersAlreadySent = function headersAlreadySent(){
+  var err = new Error('Can\'t set headers after they are sent.');
+  debug('headers already sent');
+  this.error(500, err);
+};
+
+/**
+ * Check if the request is cacheable, aka
+ * responded with 2xx or 304 (see RFC 2616 section 14.2{5,6}).
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isCachable = function(){
+  var res = this.res;
+  return (res.statusCode >= 200 && res.statusCode < 300) || 304 == res.statusCode;
+};
+
+/**
+ * Handle stat() error.
+ *
+ * @param {Error} error
+ * @private
+ */
+
+SendStream.prototype.onStatError = function onStatError(error) {
+  switch (error.code) {
+    case 'ENAMETOOLONG':
+    case 'ENOENT':
+    case 'ENOTDIR':
+      this.error(404, error)
+      break
+    default:
+      this.error(500, error)
+      break
+  }
+}
+
+/**
+ * Check if the cache is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isFresh = function(){
+  return fresh(this.req.headers, this.res._headers);
+};
+
+/**
+ * Check if the range is fresh.
+ *
+ * @return {Boolean}
+ * @api private
+ */
+
+SendStream.prototype.isRangeFresh = function isRangeFresh(){
+  var ifRange = this.req.headers['if-range'];
+
+  if (!ifRange) return true;
+
+  return ~ifRange.indexOf('"')
+    ? ~ifRange.indexOf(this.res._headers['etag'])
+    : Date.parse(this.res._headers['last-modified']) <= Date.parse(ifRange);
+};
+
+/**
+ * Redirect to path.
+ *
+ * @param {string} path
+ * @private
+ */
+
+SendStream.prototype.redirect = function redirect(path) {
+  if (listenerCount(this, 'directory') !== 0) {
+    this.emit('directory')
+    return
+  }
+
+  if (this.hasTrailingSlash()) {
+    this.error(403)
+    return
+  }
+
+  var loc = path + '/'
+  var msg = 'Redirecting to <a href="' + escapeHtml(loc) + '">' + escapeHtml(loc) + '</a>\n'
+  var res = this.res
+
+  // redirect
+  res.statusCode = 301
+  res.setHeader('Content-Type', 'text/html; charset=UTF-8')
+  res.setHeader('Content-Length', Buffer.byteLength(msg))
+  res.setHeader('X-Content-Type-Options', 'nosniff')
+  res.setHeader('Location', loc)
+  res.end(msg)
+}
+
+/**
+ * Pipe to `res.
+ *
+ * @param {Stream} res
+ * @return {Stream} res
+ * @api public
+ */
+
+SendStream.prototype.pipe = function(res){
+  var self = this
+    , args = arguments
+    , root = this._root;
+
+  // references
+  this.res = res;
+
+  // decode the path
+  var path = decode(this.path)
+  if (path === -1) return this.error(400)
+
+  // null byte(s)
+  if (~path.indexOf('\0')) return this.error(400);
+
+  var parts
+  if (root !== null) {
+    // malicious path
+    if (upPathRegexp.test(normalize('.' + sep + path))) {
+      debug('malicious path "%s"', path)
+      return this.error(403)
+    }
+
+    // join / normalize from optional root dir
+    path = normalize(join(root, path))
+    root = normalize(root + sep)
+
+    // explode path parts
+    parts = path.substr(root.length).split(sep)
+  } else {
+    // ".." is malicious without "root"
+    if (upPathRegexp.test(path)) {
+      debug('malicious path "%s"', path)
+      return this.error(403)
+    }
+
+    // explode path parts
+    parts = normalize(path).split(sep)
+
+    // resolve the path
+    path = resolve(path)
+  }
+
+  // dotfile handling
+  if (containsDotFile(parts)) {
+    var access = this._dotfiles
+
+    // legacy support
+    if (access === undefined) {
+      access = parts[parts.length - 1][0] === '.'
+        ? (this._hidden ? 'allow' : 'ignore')
+        : 'allow'
+    }
+
+    debug('%s dotfile "%s"', access, path)
+    switch (access) {
+      case 'allow':
+        break
+      case 'deny':
+        return this.error(403)
+      case 'ignore':
+      default:
+        return this.error(404)
+    }
+  }
+
+  // index file support
+  if (this._index.length && this.path[this.path.length - 1] === '/') {
+    this.sendIndex(path);
+    return res;
+  }
+
+  this.sendFile(path);
+  return res;
+};
+
+/**
+ * Transfer `path`.
+ *
+ * @param {String} path
+ * @api public
+ */
+
+SendStream.prototype.send = function(path, stat){
+  var len = stat.size;
+  var options = this.options
+  var opts = {}
+  var res = this.res;
+  var req = this.req;
+  var ranges = req.headers.range;
+  var offset = options.start || 0;
+
+  if (res._header) {
+    // impossible to send now
+    return this.headersAlreadySent();
+  }
+
+  debug('pipe "%s"', path)
+
+  // set header fields
+  this.setHeader(path, stat);
+
+  // set content-type
+  this.type(path);
+
+  // conditional GET support
+  if (this.isConditionalGET()
+    && this.isCachable()
+    && this.isFresh()) {
+    return this.notModified();
+  }
+
+  // adjust len to start/end options
+  len = Math.max(0, len - offset);
+  if (options.end !== undefined) {
+    var bytes = options.end - offset + 1;
+    if (len > bytes) len = bytes;
+  }
+
+  // Range support
+  if (ranges) {
+    ranges = parseRange(len, ranges);
+
+    // If-Range support
+    if (!this.isRangeFresh()) {
+      debug('range stale');
+      ranges = -2;
+    }
+
+    // unsatisfiable
+    if (-1 == ranges) {
+      debug('range unsatisfiable');
+      res.setHeader('Content-Range', 'bytes */' + stat.size);
+      return this.error(416);
+    }
+
+    // valid (syntactically invalid/multiple ranges are treated as a regular response)
+    if (-2 != ranges && ranges.length === 1) {
+      debug('range %j', ranges);
+
+      // Content-Range
+      res.statusCode = 206;
+      res.setHeader('Content-Range', 'bytes '
+        + ranges[0].start
+        + '-'
+        + ranges[0].end
+        + '/'
+        + len);
+
+      offset += ranges[0].start;
+      len = ranges[0].end - ranges[0].start + 1;
+    }
+  }
+
+  // clone options
+  for (var prop in options) {
+    opts[prop] = options[prop]
+  }
+
+  // set read options
+  opts.start = offset
+  opts.end = Math.max(offset, offset + len - 1)
+
+  // content-length
+  res.setHeader('Content-Length', len);
+
+  // HEAD support
+  if ('HEAD' == req.method) return res.end();
+
+  this.stream(path, opts)
+};
+
+/**
+ * Transfer file for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendFile = function sendFile(path) {
+  var i = 0
+  var self = this
+
+  debug('stat "%s"', path);
+  fs.stat(path, function onstat(err, stat) {
+    if (err && err.code === 'ENOENT'
+      && !extname(path)
+      && path[path.length - 1] !== sep) {
+      // not found, check extensions
+      return next(err)
+    }
+    if (err) return self.onStatError(err)
+    if (stat.isDirectory()) return self.redirect(self.path)
+    self.emit('file', path, stat)
+    self.send(path, stat)
+  })
+
+  function next(err) {
+    if (self._extensions.length <= i) {
+      return err
+        ? self.onStatError(err)
+        : self.error(404)
+    }
+
+    var p = path + '.' + self._extensions[i++]
+
+    debug('stat "%s"', p)
+    fs.stat(p, function (err, stat) {
+      if (err) return next(err)
+      if (stat.isDirectory()) return next()
+      self.emit('file', p, stat)
+      self.send(p, stat)
+    })
+  }
+}
+
+/**
+ * Transfer index for `path`.
+ *
+ * @param {String} path
+ * @api private
+ */
+SendStream.prototype.sendIndex = function sendIndex(path){
+  var i = -1;
+  var self = this;
+
+  function next(err){
+    if (++i >= self._index.length) {
+      if (err) return self.onStatError(err);
+      return self.error(404);
+    }
+
+    var p = join(path, self._index[i]);
+
+    debug('stat "%s"', p);
+    fs.stat(p, function(err, stat){
+      if (err) return next(err);
+      if (stat.isDirectory()) return next();
+      self.emit('file', p, stat);
+      self.send(p, stat);
+    });
+  }
+
+  next();
+};
+
+/**
+ * Stream `path` to the response.
+ *
+ * @param {String} path
+ * @param {Object} options
+ * @api private
+ */
+
+SendStream.prototype.stream = function(path, options){
+  // TODO: this is all lame, refactor meeee
+  var finished = false;
+  var self = this;
+  var res = this.res;
+  var req = this.req;
+
+  // pipe
+  var stream = fs.createReadStream(path, options);
+  this.emit('stream', stream);
+  stream.pipe(res);
+
+  // response finished, done with the fd
+  onFinished(res, function onfinished(){
+    finished = true;
+    destroy(stream);
+  });
+
+  // error handling code-smell
+  stream.on('error', function onerror(err){
+    // request already finished
+    if (finished) return;
+
+    // clean up stream
+    finished = true;
+    destroy(stream);
+
+    // error
+    self.onStatError(err);
+  });
+
+  // end
+  stream.on('end', function onend(){
+    self.emit('end');
+  });
+};
+
+/**
+ * Set content-type based on `path`
+ * if it hasn't been explicitly set.
+ *
+ * @param {String} path
+ * @api private
+ */
+
+SendStream.prototype.type = function(path){
+  var res = this.res;
+  if (res.getHeader('Content-Type')) return;
+  var type = mime.lookup(path);
+  var charset = mime.charsets.lookup(type);
+  debug('content-type %s', type);
+  res.setHeader('Content-Type', type + (charset ? '; charset=' + charset : ''));
+};
+
+/**
+ * Set response header fields, most
+ * fields may be pre-defined.
+ *
+ * @param {String} path
+ * @param {Object} stat
+ * @api private
+ */
+
+SendStream.prototype.setHeader = function setHeader(path, stat){
+  var res = this.res;
+
+  this.emit('headers', res, path, stat);
+
+  if (!res.getHeader('Accept-Ranges')) res.setHeader('Accept-Ranges', 'bytes');
+  if (!res.getHeader('Cache-Control')) res.setHeader('Cache-Control', 'public, max-age=' + Math.floor(this._maxage / 1000));
+
+  if (this._lastModified && !res.getHeader('Last-Modified')) {
+    var modified = stat.mtime.toUTCString()
+    debug('modified %s', modified)
+    res.setHeader('Last-Modified', modified)
+  }
+
+  if (this._etag && !res.getHeader('ETag')) {
+    var val = etag(stat)
+    debug('etag %s', val)
+    res.setHeader('ETag', val)
+  }
+};
+
+/**
+ * Determine if path parts contain a dotfile.
+ *
+ * @api private
+ */
+
+function containsDotFile(parts) {
+  for (var i = 0; i < parts.length; i++) {
+    if (parts[i][0] === '.') {
+      return true
+    }
+  }
+
+  return false
+}
+
+/**
+ * decodeURIComponent.
+ *
+ * Allows V8 to only deoptimize this fn instead of all
+ * of send().
+ *
+ * @param {String} path
+ * @api private
+ */
+
+function decode(path) {
+  try {
+    return decodeURIComponent(path)
+  } catch (err) {
+    return -1
+  }
+}
+
+/**
+ * Normalize the index option into an array.
+ *
+ * @param {boolean|string|array} val
+ * @param {string} name
+ * @private
+ */
+
+function normalizeList(val, name) {
+  var list = [].concat(val || [])
+
+  for (var i = 0; i < list.length; i++) {
+    if (typeof list[i] !== 'string') {
+      throw new TypeError(name + ' must be array of strings or false')
+    }
+  }
+
+  return list
+}