How to restrict more than one session to the Website? - javascript

I need not to allow user to open more than one tab or browser window of my website (index.html). So user must have no opportunity to open website in Explorer and Chrome at the same time. This must be done with pure JS or Nodejs. How it can be done?

Related

Is it possible to open tabs in existing window?

Let's say there is a page behind a login system that I would like to run puppeteer for web automation and for simplicity, I don't want to launch a new browser and enter the login system with puppeteer. Instead, I want puppeteer to activate the tab where I've manually logged in to the system.
I found something like page.bringToFront() but it works for pages, not windows/browser.
This leads me to the question: Is it possible to open tabs in existing window with puppeteer?

Webhost/webpage - is it possible to keylog users PC or Opened Tab

Say that I am a website developer/host; and someone comes to my page (eg: “my page.com”) and opens a link in my page to another site (eg: “test.com”). This opens in a new tab.
Is there a way for my page to keylog the user as they interact with the other page (or just Keylog their pc for x agreed duration)? (After accepting pop up that says by opening this link you agree to having keystrokes/mouse tracked)
I’m thinking it’s not possible because it’s potentially dangerous (does this fall under cross site scripting?) but my interest case is similar to selenium (browser recording extension), but without the need for an extension. I’m interested in the security around this and better ways to record user interaction with an external page (cookies??). I’m quite new to all this

Close a browser tab opened by Android app

I have an issue where I'm asking my app to open a browser looking at my Server.
From that server page, The user can perform some stuff on an existing site, then redirects the user to a URL that the App catches and the App continues as normal.
The lifecycle looks like this:
App -> Web Site -> App
However, after the life cycle of the app and the app is closed, the webpage is still open in the browser (on the page where the redirect to the app occurred).
It's apparently difficult via javascript to close a tab which wasn't opened by javascript? (In my case, the tab was opened by the app, not by a different tab). Is there any way to get around this?
(I'm aware I could use a WebView, but WebViews are buggy, manufacturer specific, security holes that I want to avoid)
No, sorry. There is no standard Intent structure for this. While it is possible that some browsers offer something, I am not aware of any that do.
Bear in mind that there is no requirement that your ACTION_VIEW Intent open up a browser tab, as the user's chosen browser may not offer any sort of tab UI metaphor. check this reference old question

Looking for a script that can be ran in Chrome to automatically reset the browser settings.

What I'm looking to do is create a script that we could place on people's desktop to reset some settings back to where I want them for internal web application?
The script will need to reset everytime a user opens and closes the browser.
As far as my knowledge says, you cannot just edit settings of a browser without attaining user's permissions. So, it will be better to write a chrome plug-in application and ask you web application users to install that first.
You can identify the plug-in status in your web application.

Can I Create Chrome Application Shortcuts Programmatically from a Web Page?

I've thought about using Chrome and HTML5 local storage to create a useful app and sell it. The problem I think I would have, however, is the delivery mechanism to get this installed on one's computer. Let's say the app was wikipedia.com (although it isn't). Manually one can go there with Chrome, then choose the wrench icon, Tools, Create Application Shortcuts, and make a desktop and application menu icon for the app.
Okay, fine, but is there a way I can compose a web page link or form button such that it does this for me? In other words, one clicks a button or link and it shows the Create Application Shortcuts form. I am hoping that there's this little-known way on Google Chrome to use either HTML or Javascript to trigger showing that form.
As for those who don't have Chrome, I can detect that and give them a button they click that emails them. In the email, it will give them instructions for installing Chrome and then another link so that they can visit this page in Chrome in order to get the button that shows the Create Application Shortcuts form.
For now, until a better answer can be provided, this is sort of the technique for deploying a desktop app with Chrome, the manual way, and without having to register in the Chrome Store:
After the user purchases a product, email them the serial number for registering their product and a web URL to install this new product.
The web URL is the actual URL of the web app. However, it doesn't display its normal content by default. Instead, the web app is in "installer mode". It does this by looking at a 200 year persistent, encrypted, registration cookie that may not already be installed. (Note if they delete cookies, there's no harm done -- it just asks them to re-register again.)
The first thing the web app does in Installer Mode is detect user agent. If it finds this is not Chrome, it gives them a link to install Chrome and tells them to follow the instruction email again that they have already been sent, but using Chrome to do this. (You might also want to provide a form to resend them the instructions and serial number again.)
The user either installs Chrome and returns back to this page again, or is already a Chrome user. The Installer Mode then shows a message that reads, please press the ALT-F key in Chrome, or press the Wrench icon in your toolbar, and choose Tools > Create Application Shortcuts, check the two checkboxes, click OK, and then click the "Task Performed" button below.
The user follows the instructions and creates their desktop/application shortcut and then clicks "Task Performed".
The user then sees a registration form where they are to type in their serial number they were emailed. The user enters this in and clicks the Register button.
The server validates the registration and then stores a persistent, 200 year encrypted cookie that basically says, "This guy is registered." This keeps the web app from running in Installer Mode.
The Installer Mode is still active, however, and shows them the final prompt: "You may close your browser and run the icon for the new app from your desktop or application shortcut that you created. The icon is named '{insert name here}'."
They close their browser and doubleclick the icon. The application loads, the registration cookie is read, and the web app no longer runs in Installer Mode -- it shows the application content like it normally would. Besides the fact that this is not a 100% truly automated install, the only drawback is that, since the main page is not a local file (cached), the web app can't really work offline completely. Sure, it can use HTML5 offline storage, but doubleclicking the desktop shortcut will always connect to your web app site.

Categories

Resources