问题
I can authenticate Facebook for desktop application using web browser control. But I want to log in without the browser. Email and password will be given through windows form.I've searched a lot, but found nothing on this.
Many people saying that it's not possible, facebook won't allow for privacy policy. But applications like tweet deck or nimbuzz are doing that. So I think it's possible.
I want to use Facebook's Latest C# sdk.
回答1:
It is not possible. See this link: https://developers.facebook.com/docs/authentication/
To quote from that link:
Desktop Apps
Our OAuth 2.0 implementation does not include explicit desktop app support. However, if your desktop app can embed a web browser (most desktop frameworks such as .NET, AIR and Cocoa support embedding browsers), you can use the client-side flow with one modification: a specific redirect_uri. Rather than requiring desktop apps to host a web server and populate the Site URL in the Developer App, we provide a specific URL you can use with desktop apps: https://www.facebook.com/connect/login_success.html.
The reason that this is not possible is that facebook uses the OAuth protocol. More details on the OAuth protocol can be found at: http://tools.ietf.org/html/rfc5849
The fundamental motivation behind OAuth is so that the resource that needs authorization does not need to know the credentials/identity of users.
What you are proposing (taking in the clients username/password) goes against the fundamental tenets of the OAuth protocol and you cannot (at least legally) achieve this with facebook.
回答2:
Both of your examples actually do use browsers. Tweetdeck is AIR, and Nimbuzz is .NET, both of which have browsers built-in that are behind the scenes. There is one way to authenticate without a browser, but it's nasty.
来源：https://stackoverflow.com/questions/7062084/how-to-login-authenticate-facebook-without-browser-for-desktop-application-in