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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>prototypes/server/extend/response-pipe-file-static.js - SGApps Server - Framework</title> <meta name="description" content="SGApps Server for high performance results" /> <meta name="keywords" content="javascript, js, application-prototype, prototype" /> <meta name="keyword" content="javascript, js, application-prototype, prototype" /> <meta property="og:title" content="SGApps Server - Framework"/> <meta property="og:type" content="website"/> <meta property="og:image" content=""/> <meta property="og:url" content="https://labs.sgapps.io/open-source/sgapps-server"/> <script src="scripts/prettify/prettify.js"></script> <script src="scripts/prettify/lang-css.js"></script> <!--[if lt IE 9]> <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <link type="text/css" rel="stylesheet" href="styles/prettify.css"> <link type="text/css" rel="stylesheet" href="styles/jsdoc.css"> <script 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href="SGAppsServer.html#handleRequest">handleRequest</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#handleStaticRequest">handleStaticRequest</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#head">head</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#options">options</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#patch">patch</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#post">post</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#put">put</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#server">server</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#trace">trace</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.html#use">use</a></li></ul></li><li><a href="SGAppsServer.NodeJsMvc.html">NodeJsMvc</a></li><li class="level-hide"><a href="SGAppsServer.NodeJsMvc.Controller.html">Controller</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServer.NodeJsMvc.Controller.html#actionExists">actionExists</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.NodeJsMvc.Controller.html#addAction">addAction</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.NodeJsMvc.Controller.html#addView">addView</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.NodeJsMvc.Controller.html#getAction">getAction</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.NodeJsMvc.Controller.html#getView">getView</a></li><li data-type='method' style='display: none;'><a href="SGAppsServer.NodeJsMvc.Controller.html#removeAction">removeAction</a></li><li data-type='method' style='display: none;'><a 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href="SGAppsServerDictionary.html">SGAppsServerDictionary</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerDictionary.html#generatePathKey">generatePathKey</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerDictionary.html#push">push</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerDictionary.html#run">run</a></li></ul></li><li><a href="SGAppsServerEmail.html">SGAppsServerEmail</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerEmail.html#.from">from</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerEmail.html#.isValidAddress">isValidAddress</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerEmail.html#.timeout">timeout</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerEmail.html#send">send</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerEmail.html#valid">valid</a></li></ul></li><li><a href="SGAppsServerRequest.html">SGAppsServerRequest</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerRequest.html#_parseDeepFieldName">_parseDeepFieldName</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerRequest.html#getMountUpdatedUrl">getMountUpdatedUrl</a></li></ul></li><li><a href="SGAppsServerRequestCookie.html">SGAppsServerRequestCookie</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerRequestCookie.html#get">get</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerRequestCookie.html#set">set</a></li></ul></li><li><a href="SGAppsServerRequestSession.html">SGAppsServerRequestSession</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerRequestSession.html#destroy">destroy</a></li></ul></li><li><a 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href="SGAppsSessionManager.html#handleRequest">handleRequest</a></li><li data-type='method' style='display: none;'><a href="SGAppsSessionManager.html#removeExpiredSessions">removeExpiredSessions</a></li></ul></li><li><a href="TemplateManager.html">TemplateManager</a><ul class='methods'><li data-type='method' style='display: none;'><a href="TemplateManager.html#add">add</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#addList">addList</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#get">get</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#remove">remove</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#render">render</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#templateExists">templateExists</a></li></ul></li><li><a href="TemplateManagerViewer.html">TemplateManagerViewer</a><ul class='methods'><li data-type='method' style='display: none;'><a href="TemplateManagerViewer.html#render">render</a></li><li data-type='method' style='display: none;'><a href="TemplateManagerViewer.html#renderCode">renderCode</a></li></ul></li></ul><h3>Global</h3><ul><li><a href="global.html#LoggerBuilderPrompt">LoggerBuilderPrompt</a></li><li><a href="global.html#MountUpdatedURL">MountUpdatedURL</a></li><li><a href="global.html#RequestHandler">RequestHandler</a></li><li><a href="global.html#RequestPathStructure">RequestPathStructure</a></li><li><a href="global.html#RequestPathStructureMap">RequestPathStructureMap</a></li><li><a href="global.html#RequestSessionDecorator">RequestSessionDecorator</a></li><li><a href="global.html#ResourcesExtensions">ResourcesExtensions</a></li><li><a href="global.html#routeMatch">routeMatch</a></li><li><a href="global.html#SGAppsServerDecorator">SGAppsServerDecorator</a></li><li><a href="global.html#SGAppsServerDictionaryRunCallBack">SGAppsServerDictionaryRunCallBack</a></li><li><a href="global.html#SGAppsServerErrorCallBack">SGAppsServerErrorCallBack</a></li><li><a href="global.html#SGAppsServerErrorOnlyCallback">SGAppsServerErrorOnlyCallback</a></li><li><a href="global.html#SGAppsServerHandlerPostData">SGAppsServerHandlerPostData</a></li><li><a href="global.html#SGAppsServerOptions">SGAppsServerOptions</a></li><li><a href="global.html#SGAppsServerRequestFile">SGAppsServerRequestFile</a></li><li><a href="global.html#SGAppsServerRequestPostDataItem">SGAppsServerRequestPostDataItem</a></li><li><a href="global.html#SGAppsServerRequestSessionCache">SGAppsServerRequestSessionCache</a></li><li><a href="global.html#SGAppsSessionManagerOptions">SGAppsSessionManagerOptions</a></li><li><a href="global.html#TemplateManagerRenderOptions">TemplateManagerRenderOptions</a></li><li><a href="global.html#TemplateManagerTemplate">TemplateManagerTemplate</a></li></ul> </nav> <div id="main"> <h1 class="page-title">prototypes/server/extend/response-pipe-file-static.js</h1> <section> <article> <pre class="prettyprint source linenums"><code>const _zlib = require('zlib'); const { Stats } = require('fs'); const { pipeline } = require('stream'); const _path = require('path'); /** * @private * @method ResponsePipeFileStaticDecorator * @param {SGAppsServerRequest} request * @param {SGAppsServerResponse} response * @param {SGAppsServer} server * @param {function} callback */ function ResponsePipeFileStaticDecorator(request, response, server, callback) { if (request === null || response === null) { callback(); return; } /** * @inner * @memberof SGAppsServerResponse# * @callback pipeFileStaticCallback * @param {Error} error */ /** * @method pipeFileStatic * @memberof SGAppsServerResponse# * @param {string} filePath * @param {string} fileName * @param {SGAppsServerResponse.pipeFileStaticCallback} callback * @param {object} [options] * @param {number} [options.timeout=0] * @param {string} [options.filePath] originap path is autoIndex was applied * @param {string[]} [options.autoIndex] list of auto-index files, ex: ['index.html', 'index.htm', 'default.html'] */ response.pipeFileStatic = function ResponsePipeFileStatic(filePath, fileName, callback, options = { timeout: 0, autoIndex: [] }) { var returned = false; var _callback = function (err) { if (!returned &amp;&amp; callback) { callback(err); } }; function isWritable(stream) { return stream &amp;&amp; !stream.destroyed &amp;&amp; stream.writable; }; server._fs.stat(filePath, function ( err, stat ) { if (err) { if ( options.filePath &amp;&amp; options.filePath !== filePath &amp;&amp; options.autoIndex &amp;&amp; options.autoIndex.length &amp;&amp; !options.autoIndex.includes(_path.basename(filePath)) ) { return response.pipeFileStatic( _path.resolve(options.filePath, options.autoIndex[0]), fileName, callback, Object.assign( {}, options || {}, { filePath: options.filePath || filePath, autoIndex: options.autoIndex.slice(1) } ) ); } else if (callback) { _callback(err); } else { response.sendError(err); } } else if (stat.isDirectory() &amp;&amp; options.autoIndex &amp;&amp; options.autoIndex.length) { return response.pipeFileStatic( _path.resolve(filePath, options.autoIndex[0]), fileName, callback, Object.assign( {}, options || {}, { filePath: options.filePath || filePath, autoIndex: options.autoIndex.slice(1) } ) ); } else if (!stat.isFile()) { const err = Error('IS_NOT_FILE File not allowed to be accessed'); if (callback) { _callback(err); } else { response.sendError(err); } } else { var eTagTime = Date.parse(stat.mtime); var eTag = `${stat.size}-${eTagTime}`; response.response.setHeader( 'Last-Modified', new Date(eTagTime).toUTCString() ); if (request &amp;&amp; request.request.headers['if-none-match'] === eTag) { response.response.statusCode = 304; response.response.end(); _callback(); } else { if (!isWritable(response.response)) { _callback(new Error('Client connection closed or response already destroyed.')); return; } var acceptEncoding = request.request.headers['accept-encoding']; if (Array.isArray(acceptEncoding)) acceptEncoding = acceptEncoding[0]; var raw = function () { const stream = server._fs.createReadStream(filePath); if (options.timeout) { setTimeout(() => { stream.close(); stream.push(null); stream.read(0); }, options.timeout); } return stream; }; if (!acceptEncoding) { acceptEncoding = ''; } response.response.setHeader( 'Content-Type', server.EXTENSIONS.mime(fileName || filePath || "file") ); response.response.setHeader( 'ETag', eTag ); response.response.statusCode = 200; let resError; if (acceptEncoding.match(/\bdeflate\b/)) { if (!isWritable(response.response)) { _callback(new Error('Client connection closed or response already destroyed.')); return; } response.response.setHeader( 'content-encoding', 'deflate' ); response.response.on( 'end', function () { _callback(resError); } ); response.response.on( 'error', function (err) { resError = err; } ); pipeline( raw(), _zlib.createDeflate(), //@ts-ignore response.response, (err) => { response.sendError(err, {statusCode: 500}); } ); } else if (acceptEncoding.match(/\bgzip\b/)) { if (!isWritable(response.response)) { _callback(new Error('Client connection closed or response already destroyed.')); return; } response.response.setHeader( 'content-encoding', 'gzip' ); response.response.on( 'end', function () { _callback(resError); } ); response.response.on( 'error', function (err) { resError = err; } ); pipeline( raw(), _zlib.createGzip(), //@ts-ignore response.response, (err) => { response.sendError(err, {statusCode: 500}); } ); } else { if (!isWritable(response.response)) { _callback(new Error('Client connection closed or response already destroyed.')); return; } response.response.setHeader( 'Content-Length', stat.size ); response.pipeFile( filePath, ( callback || function (err) { if (err) { response.sendError(err); } else { response.response.end(); } } ) ); } } } }); }; // response._destroy.push(function () { // delete response.pipeFileStatic; // }); callback(); } module.exports = ResponsePipeFileStaticDecorator;</code></pre> </article> </section> </div> <br class="clear"> <footer> Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.6.5</a> using the <a href="https://github.com/clenemt/docdash">docdash</a> theme. </footer> <script>prettyPrint();</script> <script src="scripts/polyfill.js"></script> <script src="scripts/linenumber.js"></script> <script src="scripts/search.js" defer></script> <script src="scripts/collapse.js" defer></script> <script src="https://sgapps.io/components/sgapps-labs-examples/toolbar/loader.js"></script> </body> </html>