Download file over HTTPS using .NET (dotnet)

Question

I would like to download a file using VB.NET (preferably) or C# via HTTPS.

I have this code to download a file over plain HTTP:

Dim client As WebClie         


        

Answer 1

You just need to point that address to your HTTPS resource and to inform your credential:

client.Credentials = new NetworkCredential("username", "password");
client.DownloadFile("https://your.resource.here", @"localfile.jog")

You're talking about how to log into a site protected by a HTML form login. I wrote this code sometime ago and you could to adapt it to login into your remote site: Orkut Login Code

Things you need to keep in mind:

• If that's an ASP.NET site, you need to call it first to get __EVENTTARGET and __EVENTARGUMENT values, as they're required to process your login postback. If it's not, skip this step.
• You need to identify that names that site uses to fill your username and password
• You must to add a CookieContainer. It keeps your login cookie, so subsequent calls uses that authenticated context.
• After all that, you should be able to get your remote resource and to download it