I have been trying to create a view module for an MVC framework.
I have 2 versions of code. One that does Sync and one Async.
I know that i should be using the Async version. However whenever I do a loadtest via AB I'm getting better results from the Sync version.
Am I doing something wrong? This is a sample of the code I'm testing
Sync Version:
var fs = require('fs'),
path = require('path'),
dot = require('dot');
Step = require('../libraries/step.js');
var view = function(){};
view.prototype = {
renderView : function(source, data, layout, callback)
{
var self = this;
if (typeof callback !== 'function') throw ViewCallbackException;
layout = layout ? layout : 'default';
(function(sources, datas, layouts, callbacks)
{
content = fs.readFileSync('./views/layouts/' + layouts + '/index.html', 'utf-8');
callbacks(null, content);
})(source, data, layout, callback);
}
}
Async Version:
var fs = require('fs'),
path = require('path'),
dot = require('dot');
Step = require('../libraries/step.js');
var view = function(){};
view.prototype = {
renderView : function(source, data, layout, callback)
{
var self = this;
if (typeof callback !== 'function') throw ViewCallbackException;
layout = layout ? layout : 'default';
(function(sources, datas, layouts, callbacks)
{
Step(
function()
{
fs.readFile('./views/layouts/' + layouts + '/index.html', 'utf-8', this);
},
callbacks
);
})(source, data, layout, callback);
}
}
Related
In my page, I'm trying to display a thumbnails of my pdf using PDF JS and it works on local, but when I upload my code in my webserver the pdf file is auto download.
In my local :
Code :
$(function() {
var filePath = "http://example.com/public/uploads/docs/Document_One_1.pdf";
function Num(num) {
var num = num;
return function () {
return num;
}
};
function renderPDF(url, canvasContainer, options) {
var options = options || {
scale: 1.1
},
func,
pdfDoc,
def = $.Deferred(),
promise = $.Deferred().resolve().promise(),
width,
height,
makeRunner = function(func, args) {
return function() {
return func.call(null, args);
};
};
function renderPage(num) {
var def = $.Deferred(),
currPageNum = new Num(num);
pdfDoc.getPage(currPageNum()).then(function(page) {
var viewport = page.getViewport(options.scale);
var canvas = document.createElement("canvas");
canvas.setAttribute("id","pdfCanvas"+num);
canvas.setAttribute("onclick","popCanvas('{{url('/dashboard/showcanvas')}}','"+document.getElementById('pdfPath').innerHTML+"','"+num+"');");
var ctx = canvas.getContext('2d');
var renderContext = {
canvasContext: ctx,
viewport: viewport
};
if(currPageNum() === 1) {
height = viewport.height;
width = viewport.width;
}
canvas.height = height;
canvas.width = width;
canvasContainer.appendChild(canvas);
page.render(renderContext).then(function() {
def.resolve();
});
})
return def.promise();
}
function renderPages(data) {
pdfDoc = data;
var pagesCount = pdfDoc.numPages;
for (var i = 1; i <= pagesCount; i++) {
func = renderPage;
promise = promise.then(makeRunner(func, i));
}
}
PDFJS.disableWorker = true;
PDFJS.getDocument(url).then(renderPages);
};
var body = document.getElementById("bodyofpdf");
renderPDF(filePath, body);
});
When I change the filepath url, for example: "https://www.tutorialspoint.com/bootstrap/bootstrap_tutorial.pdf", it works.
Can somebody help me ??
Sorry for my poor english.
If you are using Laravel you can control the behaviour of the routes, including the one to a .pdf. For local files, browsers have a different behaviour by default than for no local files.
I have used a lot PDF.js and I don't know why do you link the user directly to the file, you could create like a view page where it gets a parameter like the id or the name of the book and then you load it with pdf.js. If you use an url with a file extension you will probably confuse the browser.
yourpage.com/books/view/{id_book}
I've just introduced SSL to my MVC website. I made the whole default AccountContorller use it. It works fine unless I'm currently on http page and try to log on with ajax (the logon action is vredirected to httpS). This popup logon window doesn't even show up.
For the controller a used a custom attribute:
public class RequireSSL : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (filterContext.ActionDescriptor.IsDefined(typeof(NoSSL), true) ||
filterContext.ActionDescriptor.IsDefined(typeof(OptionalSSL), true))
{
base.OnActionExecuting(filterContext);
return;
}
HttpRequestBase req = filterContext.HttpContext.Request;
HttpResponseBase res = filterContext.HttpContext.Response;
//Check if we're secure or not and if we're on the local box
if (!req.IsSecureConnection && (!req.IsLocal || Properties.Settings.Default.UseSSLForLocalRequests))
{
var builder = new UriBuilder(req.Url)
{
Scheme = Uri.UriSchemeHttps,
Port = Properties.Settings.Default.HttpsPort,
};
res.Redirect(builder.Uri.ToString());
}
base.OnActionExecuting(filterContext);
}
}
How can I make it work?
EDIT
The whole rest was generated by MVC. (Project with built in authentications)
That's the link.
#Html.ActionLink(#Labels.LogOn, "LogOn", "Account", routeValues: null, htmlAttributes: new { id = "logonLink", data_dialog_title = "Identification" })
JS somehow hooks into that link and performs ajax logon . Probably with this code: (JajaxLogin.js - also out of the box)
/// <reference path="jquery-1.6.2.js" />
/// <reference path="jquery.validate.js" />
$(function () {
// Cache for dialogs
var dialogs = {};
var getValidationSummaryErrors = function ($form) {
// We verify if we created it beforehand
var errorSummary = $form.data('validation-summary-errors');
if (!errorSummary) {
errorSummary = $('<div class="validation-summary-errors"><span>Please correct the errors and try again.</span><ul></ul></div>')
.insertBefore($form);
// Remember that we created it
$form.data('validation-summary-errors', errorSummary);
}
return errorSummary;
};
var formSubmitHandler = function (e) {
var $form = $(this);
// We check if jQuery.validator exists on the form
if (!$form.valid || $form.valid()) {
$.post($form.attr('action'), $form.serializeArray())
.done(function (json) {
json = json || {};
// In case of success, we redirect to the provided URL or the same page.
if (json.success) {
location = json.redirect || location.href;
} else if (json.errors) {
var errorSummary = getValidationSummaryErrors($form);
var items = $.map(json.errors, function (error) {
return '<li>' + error + '</li>';
}).join('');
var ul = errorSummary
.find('ul')
.empty()
.append(items);
}
});
}
// Prevent the normal behavior since we opened the dialog
e.preventDefault();
};
var loadAndShowDialog = function (id, link, url) {
var separator = url.indexOf('?') >= 0 ? '&' : '?';
// Save an empty jQuery in our cache for now.
dialogs[id] = $();
// Load the dialog with the content=1 QueryString in order to get a PartialView
$.get(url + separator + 'content=1')
.done(function (content) {
dialogs[id] = $('<div class="modal-popup">' + content + '</div>')
.hide() // Hide the dialog for now so we prevent flicker
.appendTo(document.body)
.filter('div') // Filter for the div tag only, script tags could surface
.dialog({ // Create the jQuery UI dialog
title: link.data('dialog-title'),
modal: true,
resizable: true,
draggable: true,
width: link.data('dialog-width') || 300
})
.find('form') // Attach logic on forms
.submit(formSubmitHandler)
.end();
});
};
// List of link ids to have an ajax dialog
var links = ['logonLink', 'registerLink'];
$.each(links, function (i, id) {
$('#' + id).click(function (e) {
var link = $(this),
url = link.attr('href');
if (!dialogs[id]) {
loadAndShowDialog(id, link, url);
} else {
dialogs[id].dialog('open');
}
// Prevent the normal behavior since we use a dialog
e.preventDefault();
});
});
});
anyone got an idea how to embed a webgl animation into powerpoint. any tools that can be used on server side to capture an animated gif?
I did not make it work to embed webgl html directly in a powerpoint.
You can create images of webgl by calling toDataURL() as in
var canvas = document.createElement("canvas");
var gl = canvas.getContext("experimental-webgl");
function render() {
gl.clearColor(Math.random(), Math.random(), Math.random(), 1);
gl.clear(gl.COLOR_BUFFER_BIT);
// takes a 'screenshot' of the canvas.
var image = canvas.toDataURL();
requestAnimationFrame(render);
}
render();
To make an animation you could send each of those screenshots to a server
...
var image = canvas.toDataURL();
var req = new XMLHTTPRequest();
req.open("POST", "http://localhost:8080", true);
var data = {
cmd: 'screenshot',
dataURL: image,
};
req.setRequestHeader("Content-type", "application/json");
req.send(JSON.stringify(data));
Here's a node.js server that will save the screenshots as .png files. You could then load them into some program to turn them into a gif.
var port = 8080
var screenshotCount = 0;
var http = require('http'),
url = require('url'),
fs = require('fs'),
util = require('util'),
path = require('path'),
querystring = require('querystring');
function postHandler(request, callback) {
var query_ = { };
var content_ = '';
request.addListener('data', function(chunk) {
content_ += chunk;
});
request.addListener('end', function() {
query_ = JSON.parse(content_);
callback(query_);
});
}
function sendJSONResponse(res, object) {
res.writeHead(200, {'Content-Type': 'application/json'});
res.write(JSON.stringify(object), 'utf8');
res.end();
}
function startsWith(str, start) {
return (str.length >= start.length &&
str.substr(0, start.length) == start);
}
function saveScreenshotFromDataURL(dataURL) {
var EXPECTED_HEADER = "data:image/png;base64,";
if (startsWith(dataURL, EXPECTED_HEADER)) {
var filename = "screenshot-" + (screenshotCount++) + ".png";
fs.writeFile(
filename,
dataURL.substr(
EXPECTED_HEADER.length,
dataURL.length - EXPECTED_HEADER.length),
'base64');
util.print("Saved Screenshot: " + filename + "\n");
}
}
server = http.createServer(function(req, res) {
// your normal server code
if (req.method == "POST") {
postHandler(req, function(query) {
switch (query.cmd) {
case 'screenshot':
saveScreenshotFromDataURL(query.dataURL);
sendJSONResponse(res, { ok: true });
break;
default:
util.print("err: unknown post: " + query + "\n");
break;
}
});
}
}),
server.listen(port);
Note that server only saves screenshots, it doesn't serve files (for brevity). So you'll need to either add that functionality or serve the files from another server.
In my application i added Marionette.sync plugin and override these methods:
Backbone.Marionette.TemplateCache.prototype.loadTemplate = function (templateId, callback) {
var tmpId = templateId.replace("#", ""),
url = "/app/templates/" + tmpId + ".html";
$.get(url, function (templateHtml) {
compiledTemplate = Handlebars.compile($(templateHtml).html())
callback.call(this, compiledTemplate);
});
};
Backbone.Marionette.Renderer.renderTemplate = function (template, data) {
template(data);
};
But this not work, any ideas?
I assume you're running v0.9 of Marionette since you mention the Marionette.Async plugin.
The Renderer change is slightly off in the method name, and nothing is calling your TemplateCache object anymore.
If you're intending to use pre-compiled Handlebars functions, then you only need to do this:
Backbone.Marionette.Renderer.render = function(template, data){
return template(data);
};
If you intend to have the template loaded asynchronously and then compiled, using the TemplateLoader, your code would need to look like this:
Backbone.Marionette.TemplateCache.prototype.loadTemplate = function (templateId, callback) {
var tmpId = templateId.replace("#", ""),
url = "/app/templates/" + tmpId + ".html";
$.get(url, function (templateHtml) {
compiledTemplate = Handlebars.compile($(templateHtml).html())
callback.call(this, compiledTemplate);
});
};
Backbone.Marionette.Renderer.renderTemplate = function (templateId, data) {
var renderer = $.Deferred();
Backbone.Marionette.TemplateCache.get(templateId, function(template){
var html = template(data);
renderer.resolve(html);
});
return renderer.promise();
};
The Renderer is responsible for calling the TemplateCache.
Side note: what article / blog post / wiki page / documentation were you using to get your code from? I have probably missed some pages that need to be updated.
I am getting this one error when I use the Mozilla validator:
This is the JS file:
const STATE_START = Components.interfaces.nsIWebProgressListener.STATE_START;
const STATE_STOP = Components.interfaces.nsIWebProgressListener.STATE_STOP;
// Version changes:
// It used to get the lists from a PHP file, but that was putting too much of a strain on the servers
// now it uses xml files.
// Randomizes the servers to load balance
// Mozilla editor suggested no synchronous file gets, so changed it to asynchronous
// Added one more server to help with the updates (Ilovemafiaafire.net)
// Edited some redirect code that some idiots were spreading FUD about.
var xmlDoc = null;
var quickFilter_100_count_redirect_url='http://www.mafiaafire.com/help_us.php';
var countXmlUrl = 0;
//var xmlUrl = 'http://elxotica.com/xml-update/xml-list.php';
var xmlUrl = new Array(4);
xmlUrl[0] = 'http://mafiaafire.com/xml-update/mf_xml_list.xml';
xmlUrl[1] = 'http://ifucksexygirls.com/xml-update/mf_xml_list.xml';
xmlUrl[2] = 'http://ezee.se/xml-update/mf_xml_list.xml';
xmlUrl[3] = 'http://ilovemafiaafire.net/mf_xml_list.xml';
xmlUrl.sort(function() {return 0.5 - Math.random()})
var realXmlUrl = xmlUrl[countXmlUrl];
var notificationUrl = 'http://mafiaafire.com/xml-update/click_here_for_details.php';
var root_node = null;
var second_node = null;
var timervar = null;
var mafiaafireFilterUrl = '';
//Calling the interface for preferences
var prefManager = Components.classes["#mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch);
var quickfilter_mafiaafire =
{
// get the domain name from the current url
get_domain_name:function()
{
var urlbar = window.content.location.href;
domain_name_parts = urlbar.match(/:\/\/(.[^/]+)/)[1].split('.');
if(domain_name_parts.length >= 3){
domain_name_parts[0] = '';
}
var dn = domain_name_parts.join('.');
if(dn.indexOf('.') == 0)
return dn.substr(1);
else
return dn;
},
// send ajax request to server for loading the xml
request_xml:function ()
{
//alert(countXmlUrl);
http_request = false;
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType) {
http_request.overrideMimeType('text/xml');
}
if (!http_request)
{
return false;
}
http_request.onreadystatechange = this.response_xml;
http_request.open('GET', realXmlUrl, true);
http_request.send(null);
xmlDoc = http_request.responseXML;
},
// receive the ajax response
response_xml:function ()
{
if (http_request.readyState == 4)
{
if(http_request.status == 404 && countXmlUrl<=3)
{
countXmlUrl++;
//alert(xmlUrl[countXmlUrl]);
realXmlUrl = xmlUrl[countXmlUrl];
quickfilter_mafiaafire.request_xml();
}
if (http_request.status == 200)
{
xmlDoc = http_request.responseXML;
}
}
},
filterUrl:function()
{
var urlBar = window.content.location.href;
//check if url bar is blank or empty
if (urlBar == 'about:blank' || urlBar == '' || urlBar.indexOf('http')<0)
return false;
//1. get domain
processing_domain = this.get_domain_name();
//alert(processing_domain);
//Couldn't fetch the XML config, so returning gracefully
if(xmlDoc == null)
return false;
try
{
root_node = '';
// Parsing the xml
root_node = xmlDoc.getElementsByTagName('filter');
for(i=0;i<=root_node.length;i++)
{
second_node = '';
second_node = root_node[i];
if(second_node.getElementsByTagName('realdomain')[0].firstChild.nodeValue == processing_domain)
{
this.notificationBox();
mafiaafireFilterUrl = '';
mafiaafireFilterUrl = second_node.getElementsByTagName('filterdomain')[0].firstChild.nodeValue;
timervar = setTimeout("quickfilter_mafiaafire.redirectToAnotherUrl()",1500);
//window.content.location.href = second_node.getElementsByTagName('filterdomain')[0].firstChild.nodeValue;
//this.redirectToAnotherUrl(this.filterUrl);
//timervar = setInterval("quickfilter_mafiaafire.redirectToAnotherUrl(quickfilter_mafiaafire.filterUrl)",1000);
}
}
}
catch(e){
//alert(e.toString());
}
},
// This function is called for showing the notification
notificationBox:function()
{
try{
// Firefox default notification interface
var notificationBox = gBrowser.getNotificationBox();
notificationBox.removeAllNotifications(false);
notificationBox.appendNotification('You are being redirected', "", "chrome://quickfilter/content/filter.png", notificationBox.PRIORITY_INFO_HIGH, [{
accessKey: '',
label: ' click here for details',
callback: function() {
// Showing the notification Bar
window.content.location.href = notificationUrl;
}
}]);
}catch(e){}
},
redirectToAnotherUrl:function()
{
var qucikFilterRedirectCount = '';
//Read the value from preferrences
qucikFilterRedirectCount = prefManager.getCharPref("extensions.quickfilter_redirect_count");
//alert(qucikFilterRedirectCount);
if(qucikFilterRedirectCount % 15 == 0)
{
// Disable for now, can comment this entire section but this is the easier fix incase we decide to enable it later
//window.content.location.href = quickFilter_100_count_redirect_url+"?d="+mafiaafireFilterUrl;
window.content.location.href = mafiaafireFilterUrl;
}
else
{
window.content.location.href = mafiaafireFilterUrl;
}
qucikFilterRedirectCount = parseInt(qucikFilterRedirectCount)+1;
prefManager.setCharPref("extensions.quickfilter_redirect_count",qucikFilterRedirectCount);
}
}
var quickfilter_urlBarListener = {
QueryInterface: function(aIID)
{
if (aIID.equals(Components.interfaces.nsIWebProgressListener) ||
aIID.equals(Components.interfaces.nsISupportsWeakReference) ||
aIID.equals(Components.interfaces.nsISupports))
return this;
throw Components.results.NS_NOINTERFACE;
},
//Called when the location of the window being watched changes
onLocationChange: function(aProgress, aRequest, aURI)
{
// This fires when the location bar changes; that is load event is confirmed
// or when the user switches tabs. If you use myListener for more than one tab/window,
// use aProgress.DOMWindow to obtain the tab/window which triggered the change.
quickfilter_mafiaafire.filterUrl();
},
//Notification indicating the state has changed for one of the requests associated with aWebProgress.
onStateChange: function(aProgress, aRequest, aFlag, aStatus)
{
if(aFlag & STATE_START)
{
// This fires when the load event is initiated
}
if(aFlag & STATE_STOP)
{
// This fires when the load finishes
}
},
//Notification that the progress has changed for one of the requests associated with aWebProgress
onProgressChange: function() {},
//Notification that the status of a request has changed. The status message is intended to be displayed to the user.
onStatusChange: function() {},
//Notification called for security progress
onSecurityChange: function() {},
onLinkIconAvailable: function() {}
};
var quickfilter_extension = {
init: function()
{
//Initiating the progressListerner
gBrowser.addProgressListener(quickfilter_urlBarListener, Components.interfaces.nsIWebProgress.NOTIFY_STATE_DOCUMENT);
//Load the block list xml form server
quickfilter_mafiaafire.request_xml();
},
uninit: function()
{
// Remove the progressListerner
gBrowser.removeProgressListener(quickfilter_urlBarListener);
}
};
// window.addEventListener("load", function () { TheGreatTest1.onFirefoxLoad(); }, false);
// this function is Called on window Onload event
window.addEventListener("load", function(e) {
quickfilter_extension.init();
}, false);
window.addEventListener("unload", function(e) {
quickfilter_extension.uninit();
}, false);
Can you tell me how to squash that error please?
It looks like the offending line is setTimeout("quickfilter_mafiaafire.redirectToAnotherUrl()",1500);
The setTimeout function can take a string (which then essentially gets eval'd) or a function (which gets called). Using a string is not recommended, for all the same reasons that using eval is not recommended. See https://developer.mozilla.org/en/DOM/window.setTimeout
In this case, the simplest fix would be to change it to setTimeout(function() { quickfilter_mafiaafire.redirectToAnotherUrl(); },1500);