How to validate user is authenticated or not

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How to validate user is authenticated or not whenever he hit URL in the browser.
eg.
"http://localhost:52466/AdminWebsite/result.pdf"
if the user is authenticated then he should able to download the pdf file , if not redirect to Login page

Posted 13-Nov-13 20:33pm

Dnyaneshwar@Pune

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hsakarp · Accepted Answer · 2013-11-13T21:31:00

Solution 1

While logging in use a key/flag to set the user logged in and use the key whenever he access the URL.or keep a session while user log in and check whether the session has the value or not.

Regards,
Hsakarp

Posted 13-Nov-13 21:31pm

hsakarp

Comments

[no name] 14-Nov-13 4:17am

If the requested URL is http://localhost:52466/AdminWebsite/result.pdf then where to check the formauthentication or Session value.

hsakarp 14-Nov-13 5:15am

Please find the below link..
http://stackoverflow.com/questions/15662543/check-session-in-every-page . It might help you

Chetan Patel · Accepted Answer · 2013-11-13T21:42:00

Solution 2

You may use FormAuthentication of Asp.Net.

It is the easiest way to authenticate the user.

---Chetan Patel

Posted 13-Nov-13 21:42pm

Chetan Patel

Comments

[no name] 14-Nov-13 4:17am

But If the requested URL is http://localhost:52466/AdminWebsite/result.pdf which is not a aspx page then where to check the formauthentication or Session value.

Chetan Patel 16-Sep-14 2:35am

Use HTTPHandler to validate the user. where you can write the pdf file as response for valid users and also you can pass message for invalid user's. as you can set the type of HTTP response.
You just need to add one Handler class to handle the request. then configure it to web.config ex://

<httphandlers>
<add type="<namespace>.<classname>,<Assemblyname>" path="*.pdf" verb="GET">

chauhanvatsal · Accepted Answer · 2013-11-13T23:22:00

Solution 3

I am not Sure but you can pass some unique value for authenticated user in query string
while click button

and check the value of query string when page is load

Posted 13-Nov-13 23:22pm

chauhanvatsal