NET decompiler dotpeek,free. If you don't know what are http cookies, read my another blog post tutorial on what are http cookies 1. Persistent Cookies Persistent cookies will have Expiry Date time set from the web server. When persistent cookie will be removed from browser? When non persistent cookie will be removed from browser? Posted by Ranganatha. No comments:. Newer Post Older Post Home. If you want the cookie to expire when the session ends, don't set an expiration date i. Following is a quick example of checking both of the above cases with a sample code in ASP.
Below we will create an AUTH cookie in two different ways:. Calling the above code will generate a persistent auth cookie which can be confirmed with dev tools:. The above call will generate a non-persistent cookie Session cookie which can be confirmed by checking the expiry of the cookie:. In ASP. SlidingExpiration property The default value of this property is true. Sliding expiration resets the expiration time for a valid authentication cookie if a request is made and more than half of the timeout interval has elapsed.
If the cookie expires, the user must re-authenticate. Setting the SlidingExpiration property to false can improve the security of an application by limiting the time for which an authentication cookie is valid, based on the configured timeout value.
In our above example where we added a persistent cookie, we set an expiration date of 30 days. On the first request, a cookie will be generated and will be stored on the client's machine for 30 days. If no request is made in between those 30 days the cookie will be expired.
The auth cookie will not be sent to the server with a request which is issued after that 30 days period. The user will see himself as a Guest user and the user will have to re-authenticate to be treated as a logged in user.
With the non-persistent example, you will be wondering why we set an expiration in FormsAuth ticket and not in cookie itself. What is the role of setting the expiration in FormsAuth ticket? The answer for those questions is that the 1 minute expiration of Session cookie which we set there for the FormsAuth ticket is the time after which the Session cookie will be expired and will be not be sent to the server along with subsequent requests.
If any further request is made before that 1 minute expiry time the sliding expiration will come into effect and session cookie will be rewritten and the expiry time will be extended for 1 more minute. Home Browse Articles Blogs People. Persistent and Non-persistent cookies in ASP. Raghav Khunger. And if I only want the cookie to persist for the session, what expiration should I set?
Does that mean any Set-Cookie without an expires clause will be a session cookie, and will be lost once the browser restarts? Because that's not what I see Once I do a Set-Cookie without expires, and restart the browser, I can still read that cookie back.
Is that expected? I double-checked to make sure and posted some additional links. I finally found out what happened. On Firefox, if you turn on session restore "When Firefox starts: Show my windows and tabs from last time" , it'll restore even the session cookies when you restart!
See bugzilla. That's an interesting behavior You could theoretically perform limited checks against that scenario by looking to see if the session that the cookie references actually still exists, although I have found that checks that like that can notoriously hard and prone to error.
An easier way would be to just write a persistent cookie every time a page was viewed with the date, and check how long it has been since last activity. Show 5 more comments. There two type of cookies in ASP. NET Persistent cookies: Cookies are stored on your computer hard disk. Pankaj Makwana 3, 6 6 gold badges 30 30 silver badges 47 47 bronze badges. Aggrawal Deepak. Aggrawal 1, 10 10 silver badges 23 23 bronze badges. Add cookie ; Cookie with a certain time-stamp.
MaxValue; Response. Add cookie ;. So, basically persistent cookies come with the expires attribute e. Saikat Saikat 9, 14 14 gold badges 83 83 silver badges bronze badges.
Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.
0コメント