<img> tag ASP script execution

[Mike Kanski]

I have an asp page that contains a simple insert statement and redirect
i.e.:

Page1.asp
<%oconn.execute "insert into table 1 values(1)"
response.redirect "newpage.asp"
%>

I have to add some code to it to not allow execution of this script if the
page was called from the <img> tag i.e..

<img src=http://webname.com/page1.asp width=1 height=1>

The page should be opened in browser in order for the script it contains to
be executed. How do i acomplish that?

 

[Ray at]

I think I can understand why you want to do this, but it seems that the only
way you can do this is:

1. Force the user to confirm the page or require some other user
interaction.
2. Don't have a page that inserts data just by loading.

Ray at work

 

[Dave Anderson]

I have to add some code to it to not allow execution of this script if the
page was called from the <img> tag i.e..

<img src=http://webname.com/page1.asp width=1 height=1>

The page should be opened in browser in order for the script it contains to
be executed. How do i acomplish that?

As far as IIS is concerned, a request is a request -- how the browser
chooses to dispose of the Response is immaterial. You can test this by
collecting the contents of the Request.ServerVariables collection and
storing them in a DB, then comparing the differences.

If the <IMG> only resides on a single script, then you might have a shot at
dealing with it by examining HTTP_REFERER.


--
Dave Anderson

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