Creating temporary download URL

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Hi,

I want to create functionality to allow the user to download data..the flow is as follows

1.click download data button
2.show file names as hyperlinks to download data.
3.User clicks on file name hyperlink,then we want to send a temporary url in an email for the user to download data.

our files to download are zip files and the main reason for temporary download url is to restrict unauthorized access from remote users

I dont know how to create a temporary URL which expires after sometime, any help appreciated..thanks

regards,
Praveen

Posted 21-Mar-11 14:40pm

Joshuva Praveen

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CodeHawkz · Answer 1 · 2011-03-21T18:42:00

Hi there

Assuming you know how to code the file download part, I'll tell you the logic of the solution that you are looking for.

1. Create a table named "DownloadTicketsTable" which has fields "TicketNo", "Download File Name", "Date Created", "TicketLiftTime"<b></b>
2. Make a page called "dataList.aspx" in which, you list all the file names that are available for that user to download. Make sure, you don't provide the link to the exact file.
3. When the user clicks on a certain file, post the clicked file name to another page named "downloads.aspx?filename=mytest.zip" in which you create a unique ID for the download ticket (I suggest a Guid would fit very well) and make create a record in the "DownloadTicketsTable" with the other relevant field information.
4. Create links like "downloads.aspx?ticket=as4s1da23d23zwaw1" and give it to the user.
5. In the "downloads.aspx" check for the ticket id, query your table, do the time calculations.
6. If the ticket has not expired, write the file data back to the user. If it has expired, return an error message to the user "Sorry. This download ticket has expired"

Note: The names of the files, page names, GET data are just used for explaining purposes. Please, feel free to change the names, logic as fit.

Hope this helps.

Regards, Pasan.

shakil0304003 · Answer 2 · 2011-03-21T17:39:00

Solution 1

You can see this
Click

Posted 21-Mar-11 17:39pm

shakil0304003