Web page Get login QQ number, how to solve

Web page to get the QQ number of login
As long as users open the Web page, you can detect the user's computer has been logged on QQ (note is the user's computer login QQ), and then get the user login QQ number on the line.

Whether it is JS PHP jsp ASP As long as it can be implemented on the line.

Web page to get QQ number? script?

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------Solution--------------------
Just a brief look at what should be achievable. QQ with the Auth authority authentication. Finally, you can read the QQ number. More trouble. Jumps n times. Take a lot of cookies with you every time. I'll tell you the research ideas

1.maill.qq.com Open the HTTPS estimate that automatically prompts you to sign in---you can't handle it.
2. Find a discuz forum, such as the official website "http://www.discuz.net/" There is a "login with QQ" click. Parses all the URL addresses. You will find below that there is a
http://ptlogin2.qq.com/getface?appid=716027610&imgtype=3&encrytype=0&devtype=0&keytpye=0& Uin= your QQ number &r=0.9569594876375049
Ha ha. This can be read. Read through several of the URLs above. You study it yourself.

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