Alternate way to popup FB login in iPhone?

Is there any other way to check the username and password of the FB from 开发者_如何学CiPhone with out using FBDialog? like using webservice (to send the username and password to the FB server and get the auth_token and session_key)

Sri

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For security/phishing reasons, collecting the user's password directly is a violation of the Facebook terms of service. You are required to use Facebook's dialogs for this.