Can I share access to a website without sharing my credentials? [closed] - javascript

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I have an account in a website, i want to share it with others without giving them the credentials.
What I tried so far:
I built a chrome extension that connects to my server get the credentials then fill the login form and connect to the website, but that's just like giving them the password.
Using a PHP Web scraper library, I can open the website in my server log in and send back the HTML to the user, when the user clicks on an element in the page I can collect its css selector and send it to the server then the scraper can find and click on that element then send back the result HTML, this will work but it'll never be the same as the real website experience.
Are there any other approaches I should consider?

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How does Whatsapp keep me logged in [closed]

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I'm experimenting by transfering cookies from one browser to another and I was surprised that all accounts I'm logged in to are also logged in in the new browser. My Whatsapp session however doesn't get transfered, I looked at the Whatsapp cookies and there were none of them.
How does Whatsapp keep me logged in? And is there a way to transfer one Whatsapp session to another browser?
WhatsApp web does not use cookies Instead, it uses offline website data.
For more info:
https://admx.help/?Category=Firefox&Policy=Mozilla.Policies.Firefox::H_SanitizeOnShutdown_OfflineApps
You might be able to transfer the data if you can find it.

Chrome extension- JavaScript to retrieve data from MySQL database and display in extention [closed]

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we are creating a chrome extension that can able to retrieve a data from MYSQL database and display in extension.is it possible? second question is it possible to authenticate localhost .aspx website from java script.
If you want to make a native database connection I think it would be possible with npapi, see https://developer.chrome.com/extensions/npapi. However it sounds to make like a big security risk due to the fact the username and password will be stored in the extension code that can be early access, a better solution would be to develop some http service/api that will connect to the database and return some information, then you can just make an ajax request to your service and display any information you want.
About the second question, you can make any http request just like the browser using chrome extensions.

How java script login page works? [closed]

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How JavaScript take user ID and password? And where do it stores that data? And how it check the authentication when next time user wants to login in?
It doesn't. JavaScript running in the browser cannot perform meaningful authentication. You'd need a server-side application that performs the authentication. At most, JavaScript could perform an AJAX request, sending the user ID and password to the server — but how exactly you'd do that would depend entirely on the application. You'd need to read the documentation for your system to find out how authentication is performed.
(It is conceivable that we're talking about a server-side application written in JavaScript à la node.js, but since the question is not tagged as such I'm assuming not.)

Authentication for a web page via browser [closed]

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I am working on a Laravel project right now. I have a route www.website.com/auth/register. All I want is that when a hits this page, he should be asked for some credentials. If he inputs incorrect credentials, then he should not be able to see the registration page.
I have seen some web pages ask for authentication before we can see them. How is that achieved? I suppose those credentials are handled on the client side by the browser. Please help.
I think you're talking about the BASIC Authentication method, which exchanges credentials in plain text and is configured at the Web Server level.
Also, see this: https://security.stackexchange.com/questions/988/is-basic-auth-secure-if-done-over-https
http://laravel.com/docs/4.2/security#http-basic-authentication

authenticating via facebook to update another database [closed]

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I am very new to web technologies. I don't even know what keywords to search with, so please bear with me.
I want to make a hybrid web app. The user visits the site and gets a login prompt to verify his/her identity via facebook.
When the use logs in correctly, they are allowed to query the database on my website. If the login fails, they cannot query my database.
I do not want any heavy duty SDKs or special purpose libraries. Is there a shortcut, lightweight implementation?
thank you for the help!
I see that you have tagged it as javascript, so i would suggest you t go through this official Facebook tutorial : https://developers.facebook.com/docs/facebook-login/login-flow-for-web/v2.2
Once the user is done with this, you just need to allow the user to query your database.
P.S. - For a more appropriate answer in regards to the later section, you need to put forward a more "to the point" question.

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