Remove the static handler

lib/static_handler.js

@@ -1,102 +0,0 @@
-var path = require('path');
-var fs = require('fs');
-
-var winston = require('winston');
-
-var DocumentHandler = require('./document_handler');
-
-// For serving static assets
-
-var StaticHandler = function(path, cacheAssets) {
-  this.basePath = path;
-  this.defaultPath = '/index.html';
-  this.cacheAssets = cacheAssets;
-  // Grab the list of available files - and move into hash for quick lookup
-  var available = fs.readdirSync(this.basePath);
-  this.availablePaths = {};
-  for (var i = 0; i < available.length; i++) {
-    this.availablePaths['/' + available[i]] = true;
-  }
-};
-
-StaticHandler.cache = {};
-
-// Determine the content type for a given extension
-StaticHandler.contentTypeFor = function(ext) {
-  if (ext == '.js') return 'text/javascript';
-  else if (ext == '.css') return 'text/css';
-  else if (ext == '.html') return 'text/html';
-  else if (ext == '.ico') return 'image/ico';
-  else if (ext == '.txt') return 'text/plain';
-  else if (ext == '.png') return 'image/png';
-  else {
-    winston.error('unable to determine content type for static asset with extension: ' + ext);
-    return 'text/plain';
-  }
-};
-
-// Handle a request, and serve back the asset if it exists
-StaticHandler.prototype.handle = function(incPath, response) {
-  // If this is a potential key, show the index - otherwise
-  // bust out a 404
-  if (!this.availablePaths[incPath]) {
-    if (incPath === '/' || DocumentHandler.potentialKey(incPath.substring(1))) {
-      incPath = this.defaultPath;
-    }
-    else {
-      winston.warn('failed to find static asset', { path: incPath });
-      response.writeHead(404, { 'content-type': 'application/json' });
-      response.end(JSON.stringify({ message: 'no such file' }));
-      return;
-    }
-  }
-  // And then stream the file back - either from the cache or from source
-  var filePath = this.basePath + (incPath == '/' ? this.defaultPath : incPath);
-  var cached = this.cacheAssets && this.isCached(filePath);
-  // Go get'er
-  var _this = this;
-  var method = cached ? this.serveCached : this.retrieve;
-  method(filePath, function(error, content) {
-    // detect errors
-    if (error) {
-      winston.error('unable to read file', { path: filePath, error: error });
-      response.writeHead(500, { 'content-type': 'application/json' });
-      response.end(JSON.stringify({ message: 'IO: Unable to read file' }));
-      // If it was cached, bust the cache
-      if (cached) {
-        StaticHandler.cache[filePath] = null;
-      }
-    }
-    // Get the content
-    else {
-      var contentType = StaticHandler.contentTypeFor(path.extname(filePath));
-      response.writeHead(200, { 'content-type': contentType });
-      response.end(content, 'utf-8');
-      // Stick it in the cache if its not in there
-      if (!cached && _this.cacheAssets) {
-        StaticHandler.cache[filePath] = content;
-      }
-    }
-  }); 
-};
-
-// Retrieve from the file
-StaticHandler.prototype.retrieve = function(filePath, callback) {
-  var _this = this;
-  winston.verbose('loading static asset', { path: filePath });
-  fs.readFile(filePath, function(error, content) {
-    callback(error, content);
-  });
-};
-
-// Retrieve from memory cache
-StaticHandler.prototype.serveCached = function(filePath, callback) {
-  callback(undefined, StaticHandler.cache[filePath]);
-};
-
-// Determine if a given filePath is cached or not
-StaticHandler.prototype.isCached = function(filePath) {
-  return !!StaticHandler.cache[filePath];
-};
-
-module.exports = StaticHandler;