From 607d3eb3acdf66af0562bf9dd901d07867596607 Mon Sep 17 00:00:00 2001 From: John Crepezzi Date: Wed, 23 Nov 2011 15:27:02 -0500 Subject: [PATCH] Remove the static handler --- lib/static_handler.js | 102 ------------------------------------------ 1 file changed, 102 deletions(-) delete mode 100644 lib/static_handler.js diff --git a/lib/static_handler.js b/lib/static_handler.js deleted file mode 100644 index 3cc5ec3..0000000 --- a/lib/static_handler.js +++ /dev/null @@ -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;